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-rwxr-xr-xeditors/nvi/build43
-rw-r--r--editors/nvi/checksums29
-rw-r--r--editors/nvi/depends1
-rw-r--r--editors/nvi/patches/nvi-00-create-symlinks.patch38
-rw-r--r--editors/nvi/patches/nvi-01-additional_upstream_data.patch3485
-rw-r--r--editors/nvi/patches/nvi-03-db4.patch28
-rw-r--r--editors/nvi/patches/nvi-04-confdefs.patch13
-rw-r--r--editors/nvi/patches/nvi-06-default_value_escapetime.patch18
-rw-r--r--editors/nvi/patches/nvi-07-flush_cache.patch49
-rw-r--r--editors/nvi/patches/nvi-08-lfs.patch28
-rw-r--r--editors/nvi/patches/nvi-08-safe_printf.patch18
-rw-r--r--editors/nvi/patches/nvi-08-tempfile_umask.patch31
-rw-r--r--editors/nvi/patches/nvi-09-casting.patch27
-rw-r--r--editors/nvi/patches/nvi-10-no_one_line_visual.patch24
-rw-r--r--editors/nvi/patches/nvi-11-backward_sentence_moving.patch18
-rw-r--r--editors/nvi/patches/nvi-12-horiz_scroll_count.patch18
-rw-r--r--editors/nvi/patches/nvi-14-private_regex_fixes.patch31
-rw-r--r--editors/nvi/patches/nvi-15-search_word.patch29
-rw-r--r--editors/nvi/patches/nvi-16-manpage_errors.patch770
-rw-r--r--editors/nvi/patches/nvi-17-tutorial_typos.patch63
-rw-r--r--editors/nvi/patches/nvi-18-dbpagesize_binpower.patch25
-rw-r--r--editors/nvi/patches/nvi-19-include_term_h.patch28
-rw-r--r--editors/nvi/patches/nvi-20-glibc_has_grantpt.patch29
-rw-r--r--editors/nvi/patches/nvi-21-exrc_writability_check.patch61
-rw-r--r--editors/nvi/patches/nvi-23-debian_alternatives.patch35
-rw-r--r--editors/nvi/patches/nvi-24-fallback_to_dumb_term.patch29
-rw-r--r--editors/nvi/patches/nvi-25-manpage_note_dropped_F.patch58
-rw-r--r--editors/nvi/patches/nvi-26-trailing_tab_segv.patch18
-rw-r--r--editors/nvi/patches/nvi-27-support_C_locale.patch30
-rw-r--r--editors/nvi/patches/nvi-29-file_backup.patch35
-rw-r--r--editors/nvi/sources29
-rw-r--r--editors/nvi/version1
32 files changed, 5139 insertions, 0 deletions
diff --git a/editors/nvi/build b/editors/nvi/build
new file mode 100755
index 0000000..281f78e
--- /dev/null
+++ b/editors/nvi/build
@@ -0,0 +1,43 @@
+#!/bin/sh -e
+
+mkdir temp
+TMPDIR="$PWD/temp"
+
+(
+cd db/build_unix
+
+../dist/configure \
+ --prefix=/usr \
+ --disable-shared
+
+make
+make DESTDIR="$TMPDIR" install
+
+)
+
+(
+cd nvi
+
+for patch in ../nvi*.patch; do
+ printf 'Applying %s\n' "$patch"
+ patch -Np1 < "$patch"
+done
+
+export CFLAGS="$CFLAGS -I$TMPDIR/usr/include"
+export LDFLAGS="$LDFLAGS -L$TMPDIR/usr/lib -static"
+export OPTFLAG="$CFLAGS"
+export CC="${CC:-cc} --static"
+
+cd dist
+
+./configure \
+ --prefix=/usr \
+ --enable-widechar \
+ --disable-shared \
+ vi_cv_path_preserve=/var/tmp \
+ vi_cv_sprintf_count=yes
+
+sed -i -e '/define.*_PATH_MSGCAT/ s/".*"/"\/usr\/share\/vi\/catalog\/"/' pathnames.h
+make
+install -Dm755 vi "$1/usr/bin/vi"
+)
diff --git a/editors/nvi/checksums b/editors/nvi/checksums
new file mode 100644
index 0000000..fb3c393
--- /dev/null
+++ b/editors/nvi/checksums
@@ -0,0 +1,29 @@
+3441b8e3247b2b6dd19b5fd38355fe6593b2a92e960ecb3dd00d676f63d06b59 nvi-1.81.6.tar.bz2
+e0a992d740709892e81f9d93f06daf305cf73fb81b545afe72478043172c3628 db-5.3.28.tar.gz
+27282adffead332ed4b9842bfdab95ab9fc0ff3e1e7c208288a9ee9127d18ea7 nvi-00-create-symlinks.patch
+39a67bd19b73438666b7d332e0d2531c0331b4d0594ec7be7e6d547ac376cd66 nvi-01-additional_upstream_data.patch
+cc5d42fe60b234a24ead2204e953828f1668f1e0433d2d2cf3075c44c421b7bc nvi-03-db4.patch
+8d70aaa1059c0a6a4f3d22d36bdf6061d52d5a21718cd9e6dc921a47259c029a nvi-04-confdefs.patch
+1fb91176f77ebc00c43286678e293c54135d291078b702aa38af70ca809b76b5 nvi-06-default_value_escapetime.patch
+48839fb66f437ca85773032a8dcefee91d55fc9474758b519383285c71cdad73 nvi-07-flush_cache.patch
+997fbdb42e652894ec6066e082fbabcc6857bd4bb5b418b92eb00ad096cb94c2 nvi-08-lfs.patch
+77f878463f7b005835279c62761d69269f58291ff64982329dc73477252f35af nvi-08-safe_printf.patch
+b99f859cd03792cdb112550e75e1bb1131de0f33952d4f8554eab88015a9c106 nvi-08-tempfile_umask.patch
+f94f6fb7a5cd629ef1eb9f200d43dd46b228c9234a9c341638a34b32c34f04a5 nvi-09-casting.patch
+641826fb8efe34a78d6ae49a9a6c39694a2834fcd4681d00e17fbdbb0c875e83 nvi-10-no_one_line_visual.patch
+1c03b587f7c3bc20b51e88d01e0af717a0995fb519ea9053f0ecad4cba3f03c4 nvi-11-backward_sentence_moving.patch
+60f1ee4fbe76a78fcdcff29a48186e2e80fb40325af0d10d6d8a6211d7daa3ed nvi-12-horiz_scroll_count.patch
+00557587aaa56439a541bd65ca02b8b3de00dd14f5067aa5a532a8aa5f11e2f4 nvi-14-private_regex_fixes.patch
+0b78bea53a717bc3b1b7d2cc1ef6d42af17bab4e5b6d6f91327c7b3a6dd8aed2 nvi-15-search_word.patch
+8728aacd345bf76e638bcad0af6adc9b7314b962a54df8767313b79aee4092d7 nvi-16-manpage_errors.patch
+2e45845d2aca9c65b4074429197135a4b64a541444d2401770a97413792a7b1e nvi-17-tutorial_typos.patch
+01b5d1fe2823b04f0024649b187725a27afd638d40969c117cf3984338327a77 nvi-18-dbpagesize_binpower.patch
+5f245327a192932f97a8745c149d36dab880356f3d5dd278f18a262a96e46bff nvi-19-include_term_h.patch
+b749c6df19849b3accaf059614776fd57cdd1910957652946c65434326c5b5c7 nvi-20-glibc_has_grantpt.patch
+600bf35af69a2e46e0cc22426cde0bf1e3cf4374e4784e99e8ec64d8b4ad1606 nvi-21-exrc_writability_check.patch
+f2476a7fec9ff8c81dad84c65132e67f00f0655c3c70dfffc5d9ee972c042e98 nvi-23-debian_alternatives.patch
+83f075d53f89346e1e56ed4b08663459815852e1154a62baa067bd86b25401cd nvi-24-fallback_to_dumb_term.patch
+72e3d5b9d60f16c4d57a6cb13fc6937e87011fa8cddd499d632c8879fe724fb9 nvi-25-manpage_note_dropped_F.patch
+bde5fa117510ea567d99f4480e06c1a666ec87386454a8c03b15a861c7c1bcc3 nvi-26-trailing_tab_segv.patch
+f4981f411553a785927432152ffa5af066ab325cf55e8b2a902b38ae4aeadaa1 nvi-27-support_C_locale.patch
+44cc9d3bba77ae4aaa7d4f071532ecabd29703f320cf9229936f237a84488e2a nvi-29-file_backup.patch
diff --git a/editors/nvi/depends b/editors/nvi/depends
new file mode 100644
index 0000000..2392c85
--- /dev/null
+++ b/editors/nvi/depends
@@ -0,0 +1 @@
+ncurses make
diff --git a/editors/nvi/patches/nvi-00-create-symlinks.patch b/editors/nvi/patches/nvi-00-create-symlinks.patch
new file mode 100644
index 0000000..27659a5
--- /dev/null
+++ b/editors/nvi/patches/nvi-00-create-symlinks.patch
@@ -0,0 +1,38 @@
+--- a/dist/Makefile.in.orig 2013-02-16 11:00:25.023739458 +0100
++++ b/dist/Makefile.in 2013-02-16 11:01:06.572741213 +0100
+@@ -1689,9 +1689,9 @@ perlxsi.c:
+ install-exec-local:
+ cd $(DESTDIR)$(bindir) && $(rm) -f `echo ex | sed '$(transform)'`
+ cd $(DESTDIR)$(bindir) && $(rm) -f `echo view | sed '$(transform)'`
+- cd $(DESTDIR)$(bindir) && $(ln) \
++ cd $(DESTDIR)$(bindir) && $(LN_S) \
+ `echo vi | sed '$(transform)'` `echo ex | sed '$(transform)'`
+- cd $(DESTDIR)$(bindir) && $(ln) \
++ cd $(DESTDIR)$(bindir) && $(LN_S) \
+ `echo vi | sed '$(transform)'` `echo view | sed '$(transform)'`
+
+ install-data-local: install_common
+@@ -1712,9 +1712,9 @@ install-data-local: install_common
+ $(rm) -f `echo ex.0 | sed '$(transform)'`
+ @cd $(DESTDIR)$(mandir)/cat1 && \
+ $(rm) -f `echo view.0 | sed '$(transform)'`
+- @cd $(DESTDIR)$(mandir)/cat1 && $(ln) \
++ @cd $(DESTDIR)$(mandir)/cat1 && $(LN_S) \
+ `echo vi.0 | sed '$(transform)'` `echo ex.0 | sed '$(transform)'`
+- @cd $(DESTDIR)$(mandir)/cat1 && $(ln) \
++ @cd $(DESTDIR)$(mandir)/cat1 && $(LN_S) \
+ `echo vi.0 | sed '$(transform)'` `echo view.0 | sed '$(transform)'`
+ @[ -d $(DESTDIR)$(mandir)/man1 ] || \
+ ($(mkdir) $(DESTDIR)$(mandir)/man1 && \
+@@ -1729,9 +1729,9 @@ install-data-local: install_common
+ $(rm) -f `echo ex.1 | sed '$(transform)'`
+ @cd $(DESTDIR)$(mandir)/man1 && \
+ $(rm) -f `echo view.1 | sed '$(transform)'`
+- @cd $(DESTDIR)$(mandir)/man1 && $(ln) \
++ @cd $(DESTDIR)$(mandir)/man1 && $(LN_S) \
+ `echo vi.1 | sed '$(transform)'` `echo ex.1 | sed '$(transform)'`
+- @cd $(DESTDIR)$(mandir)/man1 && $(ln) \
++ @cd $(DESTDIR)$(mandir)/man1 && $(LN_S) \
+ `echo vi.1 | sed '$(transform)'` `echo view.1 | sed '$(transform)'`
+ install_common:
+ @[ -f $(chmod) ] || (echo 'chmod not found.'; exit 1)
diff --git a/editors/nvi/patches/nvi-01-additional_upstream_data.patch b/editors/nvi/patches/nvi-01-additional_upstream_data.patch
new file mode 100644
index 0000000..4b9cec6
--- /dev/null
+++ b/editors/nvi/patches/nvi-01-additional_upstream_data.patch
@@ -0,0 +1,3485 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 01additional_upstream_data.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: A few documentation files cherry-picked from the last stable
+## DP: release tarball, because they are missing in later development
+## DP: branch releases.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/nvi-1.79/FAQ nvi-1.81.6/nvi-1.79/FAQ
+--- nvi-1.81.6.orig/nvi-1.79/FAQ 1970-01-01 01:00:00.000000000 +0100
++++ nvi-1.81.6/nvi-1.79/FAQ 1996-10-14 15:52:46.000000000 +0200
+@@ -0,0 +1,160 @@
++@(#)FAQ 8.13 (Berkeley) 10/14/96
++
++Q: How can I get vi to display my character set?
++A: Vi uses the C library routine isprint(3) to determine if a character
++ is printable, or should be displayed as an octal or hexadecimal value
++ on the screen. Generally, if vi is displaying printable characters
++ in octal/hexadecimal forms, your environment is not configured correctly.
++ Try looking at the man pages that allow you to configure your locale.
++ For example, to configure an ISO 8859-1 locale under Solaris using csh,
++ you would do:
++
++ setenv LANG C
++ setenv LC_CTYPE iso_8859_1
++
++ Other LC_CTYPE systems/values that I'm told work:
++
++ System Value
++ ====== =====
++ FreeBSD lt_LN.ISO_8859-1
++ HP-UX 9.X american.iso88591
++ HP-UX 10.X en_US.iso88591
++ SunOS 4.X iso_8859_1
++ SunOS 5.X iso_8859_1
++
++ If there's no other solution, you can use the print and noprint edit
++ options of vi to specify that a specific character is printable or not
++ printable.
++
++Q: My map won't work!
++A: One thing that you should immediately check if a vi map doesn't work
++ is if depends on the final cursor position after a P or p command.
++ Historic vi's were inconsistent as to the final position of the cursor,
++ and, to make matter worse, the final cursor position also depended on
++ whether the put text came from a named or unnamed buffer! Vi follows
++ the POSIX 1003.2 standard on this one, and makes this consistent, always
++ placing the cursor on the first character.
++
++Q: I'm using ksh or csh as my vi edit option shell value, and file
++ expansions don't work right!
++A: The problem may be in your ksh or csh startup files, e.g., .cshrc. Vi
++ executes the shell to do name expansion, and the shell generally reads
++ its startup files. If the startup files are not correctly configured
++ for non-interactive use, e.g., they always echo a prompt to the screen,
++ vi will be unable to parse the output and things will not work
++ correctly.
++
++Q: How does the iclower edit option differ from the ignorecase (i.e. ic)
++ edit option?
++A: The difference is that the ignorecase edit option always ignores the
++ case of letters in the Regular Expression (RE), and the iclower edit
++ option only ignores the case if there are no upper-case letters in the
++ RE. If any upper-case letters appear in the Regular Expression, then
++ it will be treated case-sensitively, as if the ignorecase edit option
++ was not set.
++
++Q: When I edit binary files, vi appends a <newline> to the last line!
++A: This is historic practice for vi, and further, it's required by the
++ POSIX 1003.2 standard. My intent is to provide a command line and/or
++ edit option to turn this behavior off when I switch to version 2.0 of
++ the Berkeley DB package.
++
++Q: My cursor keys don't work when I'm in text input mode!
++A: A common problem over slow links is that the set of characters sent by
++ the cursor keys don't arrive close enough together for vi to understand
++ that they are a single keystroke, and not separate keystrokes. Try
++ increasing the value of the escapetime edit option, which will cause
++ vi to wait longer before deciding that the <escape> character that
++ starts cursor key sequences doesn't have any characters following it.
++
++Q: When I edit some files, vi seems to hang forever, and I have to kill it.
++A: Vi uses flock(2) and fcntl(2) to do file locking. When it attempts to
++ acquired a lock for a file on an NFS mounted filesystem, it can hang
++ for a very long (perhaps infinite) period of time. Turning off the
++ "lock" edit option will keep vi from attempting to acquire any locks
++ on the files you edit.
++
++Q: When I compile vi I get lots of warnings about pointer assignments
++ being incompatible!
++A: Vi is partially written to support wide characters. When this code
++ interfaces with the code that doesn't yet support wide characters,
++ the pointer types clash. This will hopefully be fixed in the near
++ future, but I've been saying that for awhile, now.
++
++Q: I get jumpy scrolling behavior in the screen!
++A: This is almost certainly a problem with the system's terminfo or
++ termcap information for your terminal. If the terminfo/termcap entry
++ doesn't have the settable scrolling region capabilities, or the more
++ powerful scrolling commands, these behaviors can result. Historic
++ implementations of vi, and some of the vi clones, don't suffer from
++ this problem because they wrote their own screen support instead of
++ using the curses library.
++
++ The solution is to find a good terminfo or termcap entry for your
++ terminal, which will fix the problem for all of the applications on
++ your system, not just vi. Eric Raymond maintains the freely
++ redistributable termcap/terminfo entries. They can be downloaded
++ from http://www.ccil.org/~esr/ncurses.html, or you can contact him
++ at esr@snark.thyrsus.com.
++
++Q: The entire screen repaints on every keystroke!
++A: Your system's curses implementation is broken. You should use the
++ curses implementation provided with vi or a curses replacement such
++ as ncurses. Eric Raymond is one of the maintainers of the freely
++ redistributable ncurses package. You can download ncurses from
++ http://www.ccil.org/~esr/ncurses.html, or you can contact him at
++ esr@snark.thyrsus.com.
++
++Q: When I use vi on a Sun console (terminal type sun-34) the screen
++ is occasionally trashed, usually when exiting vi!
++A: The Sun console can't handle the 'al' capability of the termcap
++ entry (the il1 capability of terminfo entries). If you delete that
++ entry from your terminfo/termcap information everything should work
++ correctly.
++
++Q: I don't have a version of ctags (or I have ctags, but it doesn't tag
++ nearly enough things)!
++A: There's a version of ctags available on the 4.4BSD-Lite distributions,
++ as well as the FreeBSD, NetBSD, Linux and GNU distributions. Or, you
++ might want to try Exuberant Ctags:
++
++ Title: Exuberant Ctags
++ Version: 1.3
++ Entered-date: 16JUN96
++ Description:
++ A better ctags which generates tags for all possible tag types:
++ macro definitions, enumerated values (values inside enum{...}),
++ function and method definitions, enum/struct/union tags, external
++ function prototypes (optional), typedefs, and variable
++ declarations. It is far less easily fooled by code containing #if
++ preprocessor conditional constructs, using a conditional path
++ selection algorithm to resolve complicated choices, and a
++ fall-back algorithm when this one fails. Can also be used to print
++ out a list of selected objects found in source files.
++ Keywords: ctags, tags, exuberant
++ Author: darren@sirsi.com (Darren Hiebert)
++ darren@hiwaay.net (Darren Hiebert)
++ Maintained-by: darren@sirsi.com (Darren Hiebert)
++ darren@hiwaay.net (Darren Hiebert)
++ Primary-site: sunsite.unc.edu /pub/Linux/devel/lang/c
++ 27kB ctags-1.3.tar.gz
++ Alternate-site: ftp.halcyon.com /local/gvr
++ 27kB ctags-1.3.tar.gz
++ Original-site:
++ Platforms: UNIX, MSDOS, WindowsNT, Windows95, OS/2, Amiga
++ Copying-policy: Public domain
++
++Q: When I update a file I already have open, and use :e to reread it, I
++ get nul's for the rest of the file!
++A: Your system's implementation of mmap(2) has a bug; you will have to
++ exit vi and re-execute it.
++
++Q: Where can I get cscope?
++A: Cscope is available on UNIXWare System V Release 4.0 variants such as
++ Sun Solaris 2.x (/opt/SUNWspro/bin) and UNIXWare System V Release 4.1.
++
++ You can buy version 13.3 source with an unrestricted license for $400
++ from AT&T Software Solutions by calling +1-800-462-8146. Binary
++ redistribution of cscope is an additional $1500, one-time flat fee.
++
++ For more information, see http://www.unipress.com/att/new/cscope.html.
+diff -Naur nvi-1.81.6.orig/docs/changelog nvi-1.81.6/docs/changelog
+--- nvi-1.81.6.orig/nvi-1.79/docs/changelog 1970-01-01 01:00:00.000000000 +0100
++++ nvi-1.81.6/nvi-1.79/docs/changelog 1996-10-23 15:39:08.000000000 +0200
+@@ -0,0 +1,1102 @@
++1.78 -> 1.79 (10/23/96)
++ + Rename delete() to del(), for C++.
++ + Add Spanish to the list of translations.
++ + Update to Perl 5.003_06, and other Perl interpreter updates.
++ + Update the set-edit-option interface for the scripting languages.
++ + Rework ex command parsing to match historic practice for backslash
++ escaped <newline> characters inside of global commands.
++ + Enhance the comment edit option to skip C++ comments.
++ + Change installation to configure the recovery shell script to match
++ the system pathnames and to install it into the vi data directory.
++ Move the recover script into the build directory, and delete the
++ recover directory.
++ + Enhance LynxOS support.
++1.76 -> 1.78 (10/01/96)
++ + Fix bugs when both the leftright scrolling and number edit options
++ were on.
++ + Fix bug where splitting in the middle of the screen could repaint
++ incorrectly.
++ + Fix first-nul in input bug, where random garbage was inserted.
++ + Correct search and mark-as-motion-command bug, it's a line mode
++ action if the search starts at or before the first non<blank>.
++ + Fix bug autoindent bug, where ^D could shift too far in the line.
++ + Fix core dump where ! command called from the .exrc file.
++ + Add the -S command-line option, which initializes vi to have the
++ secure edit option preset.
++1.75 -> 1.76 (09/15/96)
++ + Fix bug where ^V didn't keep input mapping from happening.
++ + Fix a core dump bug in the R command.
++ + Give up on licensing: no more shareware, adware, whatever.
++ + Fix cursor positioning bug for C, S and c$ in an empty file.
++1.74 -> 1.75 (08/22/96)
++ + Add French to the error message translations.
++ + Move the UNLICENSED message to the end of the message line.
++ + Fix bug where wide characters in a file name weren't calculated
++ correctly in the status message.
++ + Fix bug where cl_rename was called directly, by the ex shell code.
++ + Fix bug where splitting a screen resulting in a new screen at the
++ top of the display resulted in badly displayed status messages.
++1.73 -> 1.74 (08/18/96)
++ + Fix bug where the status line wasn't redisplayed if the user ran
++ an ex command that trashed the screen.
++ + Fix bug where the long version of the status line wasn't displayed
++ when switching screens.
++ + Rework fast-path filename completion code to sort the entries, and
++ strip out . and .. by default.
++ + Fix bug where ex went to the first line instead of the last one when
++ reading in a file.
++1.72 -> 1.73 (08/12/96)
++ + Do filename completion and some file expansion internally for speed.
++ + Fix CSCOPE_DIRS environmental variable support.
++ + Ex parser fix for global commands in script files.
++ + Add the O_PATH option, so you can specify a directory search path
++ for files.
++ + Make it possible to specify the database file to cscope, allowing
++ multiple databases in a single directory.
++ + Fix incremental search to overwrite erased characters so the user
++ can tell where they are on the colon-command line.
++ + Fix incremental search to restart the search if the user enters an
++ unescaped shell meta character.
++1.71 -> 1.72 (07/12/96)
++ + Cscope fix: test for files newer than the database was reversed.
++ + Display "files to edit" message for rewind, next and initial screen.
++ + Fix a bug in the R command where it could fail if the user extended
++ the file.
++ + Fix a bug where text abbreviations could corrupt the line.
++ + Fix a bug where the windowname edit option couldn't be set before a
++ file was loaded into the edit buffer.
++ + Fix a bug where the system .exrc values weren't being overridden by
++ the user's $HOME .exrc values.
++ + Fix a bug in the filename completion code, where garbage characters
++ could be added to the colon command line.
++ + Fix bug where multiple edit sessions on a non-existent file could
++ all write the file without warning.
++ + Fix bug where screen update was incorrect if a character triggered
++ both a wrapmargin and showmatch condition.
++ + Fix bug in leftright scrolling where <CR> during text input didn't
++ return the cursor to the left margin.
++ + Rev the Perl interpreter code, new version from Sven Verdoolaege,
++ based on Perl 5.003.01.
++ + Fix bug in tags file pattern search introduced in 1.71.
++1.70 -> 1.71 (07/01/96)
++ + Don't include <term.h> -- neither HPUX or Solaris can cope with it.
++ + Fix bug where ^M's in the original pattern were converted into new
++ lines in the file during substitution commands.
++ + Make window resize events separate from interrupts -- too many users
++ complained.
++ + Fix bug in first-character-is-null text input semantic.
++ + Rework search routines to take a length instead of a nul-terminated
++ string for a pattern. This fixes a couple of bugs in searching, but
++ probably introduces new ones.
++ + Fix prompting the user after a write filter command, the way I did
++ it in 1.70 broke the display.
++ + Don't switch to the alternate xterm screen when entering the ex
++ text input commands from vi mode.
++ + Implement the Fg command, so can foreground a background screen into
++ a split screen.
++ + Change the fg command to match screen names using the last component
++ of the filename the full filename fails.
++1.69 -> 1.70 (06/28/96)
++ + Change the ex read command to support named pipes.
++ + Copy the EXINIT/NEXINIT strings before executing their commands so
++ we don't step on the process environment.
++ + Don't do "line modification" reports for intermediate commands
++ executed from the vi colon command line, it screws up filter
++ reads, causing nvi to prompt for the user to continue.
++ + Add "smd" as an abbreviation for showmode: HP, ICL and SCO have it.
++ + Change nvi to always prompt the user after a write filter command.
++ This matches historic practice.
++ + Fix recovery information mailed to the user to reflect the program's
++ installed name.
++ + Change configuration script to not cache option information, e.g.,
++ --disable-curses.
++ + Fix a bug where the second character of the vi [[, ]] and ZZ
++ commands could start a command mapped sequence.
++ + Fix 3 write bugs: partial writes (3,$write), were clearing the
++ modified flag, full writes using line numbers (1,$write) were
++ not, and append historically never cleared the modified flag, and
++ we didn't get that right.
++ + Shorten the "more files to edit" message so it can gang on a single
++ line, lots of people have complained. Add the number of files that
++ are left to edit, it's historic practice.
++ + Fix core dump where message catalogs collided with truncating the
++ write path. Add a new write message so the string "appended" is
++ taken from a message catalog.
++ + Fix bug where an undo followed by '.' to repeat it wouldn't work
++ if no other repeatable commands had been entered.
++ + Fix core dump when resolution of input lines' autoindent characters
++ invalidated cached display information.
++ + Set the name of the X11 xterm icon/window to "xterm" when exiting,
++ if modified based on the windowname option.
++ + Include <term.h> if it exists, fixes portability problems on IRIX
++ systems.
++1.68 -> 1.69 (06/17/96)
++ + Add the windowname edit option and code to change the icon/window
++ name for xterm's.
++ + Enhance the comment edit option to skip shell comments.
++ + Add conditional prototypes to replacement C library functions.
++ + Minor enhancements/reworking to Makefile.in, other build files.
++ + Fix bug in vi text input ^D processing, could result in cursor
++ warp to the beginning of the line.
++ + Fix leftright screen bug where the screen wasn't repainted when
++ being repainted from scratch.
++ + Update the Swedish and Dutch catalogs.
++ + Truncate paths in write commands if they don't fit on one line.
++ + Fix alternate screen bug where the screen flashed and output lost
++ when switching to/from the X11 xterm alternate screen. Fix bug
++ where nvi switched into the alternate screen during filter-read
++ commands, which doesn't match historic practice.
++ + Minor relative cursor positioning change, make cursor position
++ changes from ex real and permanent.
++1.67 -> 1.68 (06/09/96)
++ + Fix core dump when tagging out of a modified file.
++1.66 -> 1.67 (06/09/96)
++ + Convert the license to adware.
++ + Leftright scrolling tweak, don't repaint the screen as often.
++ + Change so that search warning/error messages don't appear during an
++ incremental search.
++ + Cscope fix: test for files newer than the database was reversed.
++ + Don't display ex `welcome message' if in ex batch mode.
++ + Test for vsnprintf and snprintf separately, HP 10.10 has snprintf
++ but not vsnprintf.
++ + Reverse lookup order between LC_MESSAGES and LANG.
++ + Fix Tcl/Perl core dumps in common API code to get/set options.
++ + Fix R command -- it used a DB pinned page after discarding it.
++ + Minor fixes in multiple edit buffer message handling code.
++ + Fix yk command moving to shorter line core dump.
++ + Rework message handling to try and gang more messages onto a single
++ line.
++1.65 -> 1.66 (05/18/96)
++ + Convert vi man page to historic -man macro package, and install it.
++ + Fix bug were !! on an empty line with a nonexistent command left the
++ cursor on the second character, not the first.
++ + Fix bug where line redisplay was wrong when a <tab> replaced a
++ previous <tab> in the line.
++ + Fix bug where D (d$) didn't reset the relative cursor position.
++ + Fix bug where yG incorrectly reset the relative cursor position.
++ + Fix bug where the window size couldn't be grown once it was shrunk.
++ + Fix bug where the extended edit option caused tag searches to fail.
++ + If multiple lines in the tags file with the same leading tag, build
++ a tags stack like the Cscope stack. This is the obvious extension,
++ and the way that Larry McVoy's ctags program works.
++ + Send the appropriate TI/TE sequence in the curses screen whenever
++ entering ex/vi mode. This means that :shell now shows the correct
++ screen when using xterm alternate screens.
++ + Rework the options display code to get five columns in an 80 column
++ screen.
++ + Interactive Unix V3.0 port -- mostly file name shortening, other
++ minor changes. Only preliminary, more work will be necessary.
++ + Add debugging option to not read EXINIT/.exrc information.
++ + Fix bug where re_compile printed an error message to the screen
++ when the user entered [ to an incremental search.
++ + Turn off screen beeps when incremental search is failing.
++ + Fix bug where the iclower option didn't trigger an RE recompilation.
++ + Fix bug where -t into an already locked file forced the user to wait
++ as if a startup command had failed.
++ + LynxOS port -- mostly adding <sys/types.h> even though <sys/param.h>
++ was already included.
++ + Fix ex output bug, where it appeared as if an ex command was skipped
++ due to flags not being cleared in the vs_msg() routine.
++ + Fix core dump when global command tried to switch screens.
++1.64 -> 1.65 (05/13/96)
++ + Fix cscope <blank>-matching pattern to use extended RE's, and bug
++ that kept cscope from finding patterns containing <blank>s.
++ + Fix core dumps in both leftright and folded screens when tabstops
++ edit option value was large, and tab characters occurred as the last
++ character in the logical screen.
++ + Fix core dump where the second screen of a folded line wasn't
++ displayed correctly.
++ + Fix incremental search to match the current location for strings
++ starting with \< patterns.
++ + Fix bug where margins were ignored during replay of text input.
++ + Fix bug where motion components to shorter lines could lose because
++ the relative motion flags weren't ever set. This has been broken
++ forever, but the change almost certainly breaks something else -- I
++ have no idea what.
++ + Tags display: don't print the current entry separately, display
++ them all and add a trailing asterisk for the current one.
++ + Change the cscope add command to put the directory name through
++ standard file name expansion.
++ + Fix cscope use of buffers -- search commands weren't nul-terminated.
++1.63 -> 1.64 (05/08/96)
++ + Add installation target to the Makefile.
++ + Add documentation on the new tags commands to the Vi Reference
++ Manual.
++ + Make the sidescroll edit option work again.
++ + Fix bug where messages output during startup by ex could be lost.
++ + Change ex/vi commands errors into beeps, unless the verbose edit
++ option is set -- there are too many macros that are expected to
++ eventually fail. This matches historic practice.
++ + Truncate paths in initial vi screen if they won't fit on one line.
++ + Make cursor position after filter write match historic practice.
++ + Force the user to wait if there is output and the user is leaving
++ the screen for any reason -- don't permit further ex commands.
++ + Don't use a <newline> character to scroll the screen when exiting,
++ scroll in the vi screen before endwin() is called.
++ + Fix bug where the column number could be incorrect because the old
++ screen wasn't updated after a screen split.
++ + Fix ex print routine to correctly specify print flags.
++ + Make -g/-O a separate make/configuration option.
++ + Fix bug where ex/vi messages weren't being joined.
++ + Fix bug where termcap strings were free'd twice.
++ + Fix bug where TI/TE still weren't working -- I didn't put in the
++ translation strings for BSD style curses.
++ + Fix bug where I misspelled the iclower edit option as icloser.
++1.62 -> 1.63 (04/29/96)
++ + Robustness and type/lint fixes for the Tcl interface code.
++ + Fix core dump if TERM wasn't set or terminal type was unknown.
++ + Fix bug where combining ex commands that did/did not require an
++ ex screen would overwrite the command with the want-to-continue
++ messsage.
++ + Fix bug where the screen was never resolved if the user continued
++ entering ex commands using the : character, but then backspaced
++ over the prompt to quit or tried to edit their colon command-line
++ history.
++ + Fix bug where cursor wasn't placed over the ^ placeholder character
++ when quoting using the literal-next character.
++ + Fix bug where nvi under BSD style curses wasn't sending TI/TE termcap
++ strings when suspending the process.
++ + Rename mic again, to iclower.
++ + Fix bug where 'z' commands trailing / or ? commands weren't being
++ executed.
++ + Change incremental search to leave the cursor at its last position
++ when searching for something that was never found.
++ + Fix bug where search-with-confirmation from vi mode didn't position
++ the cursor correctly after displaying the confirm message.
++ + Fix bug where the "search wrapped" message was dependent on the
++ verbose edit option, which doesn't match historic practice. Change
++ search messages to be in inverse video.
++ + Fix bug where matched showmatch character wasn't being displayed
++ before the matching character was displayed.
++ + Another cursor update bug required a change to vs_paint().
++ + Fix bug were initial line offset was wrong for the first split screen
++ (symptom is very strange column numbers and blank first line).
++ + Create filename "argument" lists when creating new screens.
++ + Fix bug where globals with associated commands that included both
++ buffer execution and other commands could fail to execute the latter.
++1.61 -> 1.62 (04/22/96)
++ + Rename the "searchci" edit option to be "mic".
++ + Fix memory corruption in global commands ending in searches.
++ + Fix text resolution bug, corrected the cursor based on the
++ first line input, not the last.
++ + Rework the readonly edit option to match historic practice.
++ + Fix several minor incremental search bugs; make incremental
++ searches work in maps.
++ + Fix long-line core dump, where an incorrect screen map could be
++ used.
++1.60 -> 1.61 (04/12/96)
++ + The cursor now ends up on the FIRST character of the put text for
++ all versions of the vi put commands, regardless of the source
++ of the text. This matches System III/V behavior and POSIX 1003.2.
++ + Fixed bug where showmatch messages were getting discarded.
++ + Minor Perl integration fixes.
++ + Integrate Cscope into the tags stack code -- major change.
++ + Fixed bug where ^T would drop core if returning to a temporary file.
++ + Changed vs_ routine to display ex output to replace tab characters
++ with spaces.
++ + Fix autoindent code to not back up past beginning of line when ^T
++ inserted into the middle of a line, i.e. offset != 0.
++ + Fix "notimeout" option, was being ignored, by a coding error.
++ + Fix showmatch code to never flash on a match if keys are waiting.
++ + Change the vi 'D' command to ignore any supplied count, matching
++ historic practice.
++ + Fix viusage for D, S, C and Y (the aliased vi commands).
++ + Fix the Perl5 configuration bug in the configuration script.
++ + Make file completion commands in empty lines work.
++ + Fix where the change to let vi use the default ex command structure
++ broke the ex specification of the script or source file name.
++ + Fix to free saved RE structures when screens exit. This is a major
++ RE change, which fixed several bugs in the handling of saved/subst
++ RE's. It's likely to have added new bugs, however.
++ + Add case-independent searching (the searchci edit option).
++ + Add incremental search (the searchincr edit option).
++ + Home the cursor when executing ex commands from vi.
++1.59 -> 1.60 (03/29/96)
++ + Fix ":w >>" core dump, make that command match historic practice.
++ + Fix autoindent bug where the length of the line was incorrectly
++ calculated.
++ + Fix cursor bug where cursor could end up at the wrong place if the
++ movement keys were entered quickly enough.
++ + Change the read/write whirling indicator to appear only every 1/4
++ second, clean up the appearance.
++ + Don't change the options real values until underlying functions
++ have returned OK -- fix "set tabstop=0" core dump.
++ + Fix resizing on Sun's: use SA_INTERRUPT to interrupt read calls.
++ + Fix two forward mark command bugs: one where it wasn't setting the
++ "favorite cursor" position because of the refresh optimization,
++ and one where it didn't have VM_RCM_SET set in the command flags
++ for some reason.
++ + Fix a bug were the 's' command on top of a <tab> didn't correctly
++ copy the buffer.
++ + Make :exusage command work for commands having optional leading
++ capital letters, e.g. Next.
++ + Previous changes broke the inital-matching-prefix code in the key
++ mapping part of v_event_get -- fix it, and fix the infinite macro
++ interrupt code at the same time.
++ + Add "cedit" edit option, so colon command-line editing is optional.
++ Change filec/cedit so that you can set them to the same character,
++ and they do cedit if in column 1, and filec otherwise.
++ + Fix "source of non-existent file" core dump.
++ + Fix bug where functions keys specified in startup information were
++ never resolved/activated.
++ + Fix v_txt bug where could infinitely loop if <escape> triggered an
++ abbreviation expansion.
++ + Move version string into VERSION file, out of ex_version.c
++1.58 -> 1.59
++ + Configuration changes, several minor bug fixes, including a few
++ core dumps. No functional changes.
++1.57 -> 1.58
++ + Fix the problem where colon command-line temporary files were
++ getting left in /tmp.
++ + Fix the configuration scripts to quit immediately if the Perl
++ or Tk/Tcl libraries are specified but not found.
++ + Several screen fixes -- the changes in 1.57 weren't as safe as
++ I thought. More specifically, the refresh-only-if-waiting change
++ caused a lot of problems. In general, fixing them should provide
++ even more speedup, but I'm nervous.
++ + Lots of changes in the configuration scripts, hopefully this is
++ just a first-round ordeal.
++ + Several other minor bug fixes.
++1.56 -> 1.57
++ + Add <esc> hook to colon commands, so you can edit colon commands.
++ + Add Perl5 interpreter.
++ + Change shell expansion code to fail if it doesn't read at least
++ one non-blank character from the shell. If the shell expansion
++ process fails, or if not at least one non-blank character, it
++ now displays an error message to the user.
++ + Rework the screen display so that it matches the historic vi screen
++ refreshes.
++ + Rework options processing: print/noprint are no longer cumulative,
++ provide more information to underlying edit options modules, move
++ O_MESG information into the screen specific code.
++ + Make file completion character settable.
++ + Rework terminal restart -- you can now use ":set term" to switch
++ terminal types. This cleaned up screen resizing considerably.
++ + Character display fix, display \177 as ^?, not in hex/octal.
++ + Tag search bug fix, don't repeat search if successful.
++ + Replace sys_siglist[] use with private sigmsg() routine.
++ + Fix core dump if illegal screenId specified to Tcl routine.
++ + Add get/set mark interface to Tcl Interpreter interface.
++ + Fix core dump if file expansion code stressed (re: filec edit option)
++ + Fix bug where filter commands in empty files couldn't find line 0.
++ + Switch to GNU autoconf 2.7 for configuration, delete nvi/PORT.
++ Many random portability fixes.
++1.55 -> 1.56 (11/26/95)
++ + Bug fix release -- generally available beta release.
++1.54 -> 1.55 (11/18/95)
++ + Bug fix release.
++ + Integrate Tcl interpreter.
++1.53 -> 1.54 (11/11/95)
++ + Bug fix release. A major change in reworking the ex commands, when
++ called from the colon command line, to match historic practice, and
++ permit them to be entered repeatedly after ex has trashed the screen.
++ + Use restartable endwin() from System V curses to implement screen
++ + suspend.
++1.52 -> 1.53 (10/29/95)
++ + Switch to using vendor's curses library for all ports.
++ + Back out the event driven version, leaving screen separation.
++ + User configuration of <escape> timeout (the escapetime edit option).
++ + Add Tcl/Tk screen support.
++ + Add file name completion (the filec edit option).
++ + Disallow access to outside applications (the secure edit option).
++1.51 -> 1.52 (7/26/95)
++ + Minor cleanups, snapshotted for SMI.
++1.50 -> 1.51 (7/05/95)
++ + Lots and lots of changes for event driven model, largely in moving
++ the boundary between the screen code and the editor up and down.
++ Private release for Rob Zimmermann @ Tartan and Bill Shannon @ SMI.
++1.49 -> 1.50 Fri Jun 9 13:56:17 1995
++ + Minor bug fixes for stability.
++ + Convert to an event driven model, with the usual Nachos Supreme
++ layering that results. This is a completely new version, nothing
++ done previously matters any more.
++1.48 -> 1.49 Wed Mar 8 10:42:17 1995
++ + Changes in 1.46 broke ^A processing.
++ + Add :previous to split screen commands.
++ + Lots o' random bug fixes -- passes purify testing again.
++1.47 -> 1.48 Thu Feb 9 18:13:29 1995
++ + Random bug fixes for 1.47.
++ + Move the FREF (file structure) list out of the screen and into
++ the global area.
++ + Change semantics to :E to more closely match :e -- ":E" joins
++ the current file, so ":E /tmp" is now the command to match the
++ historic ":split".
++1.46 -> 1.47 Wed Feb 8 19:43:41 1995
++ + All ex commands (including visual and excluding global and v)
++ are now supported inside ex global commands.
++ + Rework the append/change/insert commands to match historic
++ practice for text appended to the ex command line, and inside
++ of ex global commands.
++ + Restructure to make single-line screens work.
++ + Restructure to create curses independent screen routines.
++ + Restructure to permit Edit, Next, and Tag routines to create new
++ screens on the fly.
++ + Change hexadecimal output to be \x## instead of 0x##.
++ + Change ex commands run from vi to stay in vi mode for as long as
++ possible, i.e. until ex modifies the screen outside of the editor.
++1.45 -> 1.46 Tue Jan 24 10:22:27 1995
++ + Restructure to build as a library.
++1.44 -> 1.45 Thu Jan 12 21:33:06 1995
++ + Fix relative cursor motion to handle folded lines.
++ + Recompile the search pattern if applicable edit options change.
++ + Change +/-c command ordering to match historic practice.
++ + Rework autoindent code to always resolve preceeding <blank>
++ characters when a ^T or ^D are entered.
++ + Add the print/noprint edit options, so can now specify if
++ a character is printable.
++ + Change ex to run in canonical mode.
++ + Fix ex text input to support the number edit option.
++ + Vi text input fix for the R command to correctly restore
++ characters entered and then backspaced over.
++ + Several vi increment command fixes.
++1.43 -> 1.44
++ + Bug fix, vi was printing the last line number on the status line
++ at startup. Change to execute commands at first line set, i.e.
++ "vi -t tag -c cmd" executes cmd at the tag line, not EOF.
++1.42 -> 1.43 Sat Dec 3 13:11:32 1994
++ + Marks, SunOS signed comparison fix for 1.42.
++1.41 -> 1.42 Fri Dec 2 20:08:16 1994
++ + Make autowrite require the file not be read-only.
++ + Make the ex insert command work in empty files.
++ + Tab expansion is no longer limited to values < 20 (which matches
++ historical practice).
++ + Simplify (and fix limit detection for) the # command. It's no
++ longer possible to use the # command itself to repeat or modify
++ a previous # command, '.' is the only possibility.
++ + Lots more reworking of the ex addresses, putting ? and / into
++ the ex addressing code broke the world.
++ + Make the Put, Preserve and Print commands work (don't ask).
++ + Split stdout/stderr from shell expansions; stdout is expansion
++ text, stderr is entered on the message queue.
++1.40 -> 1.41 Fri Nov 18 16:13:52 1994
++ + Addition of a port for AUX 3.1
++ + Addition of a message catalog for Russian.
++ + Make vi ? and / commands be true ex addresses (historic practice).
++ + Display the date first in vi -r recovery list.
++1.39 -> 1.40 Mon Nov 14 10:46:56 1994
++ + Two bug fixes for 1.39; -r option and v_change core dump.
++1.38 -> 1.39 Sun Nov 13 18:04:08 1994
++ + Ex substitution with confirmation now matches historic practice
++ (except that it still runs in raw mode, not cooked).
++ + Nvi now clears the screen before painting, if repainting the
++ entire screen.
++ + Fix final cursor position for put command entering text in a
++ single line.
++ + Change to break error message lines on the last <blank> in the
++ line.
++ + Always center the current line when returning to a previously
++ edited file or moving to a tag line that's not visible on the
++ screen.
++ + Change write of the current file using an explicit name or % to
++ match the semantics of :w<CR>, not :w file<CR>.
++ + Add command aliases to vi, and remap 6 historic commands to their
++ historic counterparts: D->d$, Y->y_, S->c_, C->c$, A->$a, I->^i.
++ + Match option display to historic practice; if boolean or numeric
++ options changed to default values, not displayed by default.
++ Nvi treats string options the same way, vi always displayed any
++ string option that was changed.
++ + Added lock edit option, if not set, no file locking is done.
++ + Rework ex to permit any ex command in the EXINIT variable or
++ exrc startup files. This fixes the bug were `vi +100 file'
++ painted the screen and then moved to line 100 and repainted.
++ (Yanked to SCCS ID 9.1.)
++ + Bug fix: could report file modified more recently than it was
++ written, incorrectly.
++ + Search fix: historically, motions with deltas were not corrected
++ to the previous/next line based on the starting/stopping column.
++ + Addressing fixes: make trailing non-existent addresses work, change
++ % to be text substitution, not a unique address (to follow future
++ POSIX).
++1.37 -> 1.38 Mon Oct 24 12:51:58 1994
++ + Scrolling fix; ^B can move to nonexistent lines.
++ + Fix to vi mapped commands; <escape> characters while already in
++ command mode did not historically cause the mapped characters to
++ be flushed.
++ + Add the backup edit option, automatically version edit files.
++ + Make it possible to edit files that db can't read, i.e. edit a
++ temporary file, with the correct file name.
++ + Only anchor the last line of the file to the bottom line of the
++ screen if there's half or less of a screen between the target
++ line and the end of the file.
++ + Fix wrapmargin text allocation bug.
++ + Fix ex put command to work in any empty file.
++ + Fix global command to handle move's to line 0 correctly.
++ + Regularize the yank cursor motions, several bug fixes for historic
++ practice.
++ + Fix N and n, when used as a motion command for the ! command,
++ repeat the last bang command instead of prompting for a new
++ one.
++ + Timeout maps beginning with <escape> quickly, instead of based
++ on the keytime option.
++ + Bug fix for wraplen option, wasn't triggered for input commands.
++1.36 -> 1.37 Sun Oct 9 19:02:53 1994
++ + Change PORT directories to install patches before distribution.
++ + Fix ^A to set search direction and pattern for consistency.
++ + Fold the showdirty option into the showmode option.
++ + Ex addressing fix: change search offset and line arguments (e.g.
++ the copy command) to be ex addressing offsets, matching historic
++ practice.
++ + Ex addressing fix: support ^ as an offset/flag equivalent to -.
++ + Ex addressing fix: historically, any missing address defaulted to
++ dot, e.g. "4,,," was the same as ".,.".
++ + Ex addressing fix: historically, <blank> separated numbers were
++ additive, e.g. "3 5p" displayed line 8.
++ + Ex addressing fix: make ';' as a range delimiter match historic
++ practice.
++ + Change nvi to exit immediately if stdout isn't a terminal.
++ + Change alternate file name behavior to match historic practice,
++ make the :write command set the current file name.
++ + Text input fix; input keys from a map, with an associated count,
++ weren't historically affected by the wrapmargin value.
++ + Add wraplen option, same as wrapmargin, but from the left-hand
++ column, not the right.
++ + Make ex address .<number> be equivalent to .+<number>, i.e. the
++ '+' is understood; matches historic practice, and it's widely
++ documented for ed(1).
++ + Input mode ^V^J historically mapped into a single ^J.
++ + Minor catalog changes, fixes; don't use 's' to pluralize words.
++1.35 -> 1.36 Thu Sep 8 08:40:25 1994
++ + Don't overwrite user's maps with standard (termcap) mappings.
++ + Make \ escape kill and erase characters in vi text input mode.
++ + Fix ^D autoindent bug by resolving leading <blank>s at ^D.
++ + Rework abbreviation tests (again!) to match historic practice.
++ + Change ^D/^U default scrolling value to be based on window option
++ value, not screen lines, correct scrolling option value, both to
++ match historic practice. NOTE: System V does this differently!
++1.34 -> 1.35 Wed Aug 31 19:20:15 1994
++ + Add the historic -l option.
++ + Message catalogs.
++ + Display global messages at each flush, just in case some are there.
++ + Fix global substitute code, `\\' wasn't handled correctly.
++ + Fix abbreviation code to use <blank>s as the preceding character.
++ + Fix ruler to display logical column, not physical column.
++ + Block signals when user issues :preserve command, so no race caused
++ by SIGHUP/SIGTERM.
++1.33 -> 1.34 Wed Aug 17 14:37:32 1994 (PUBLICLY AVAILABLE VERSION)
++ + Back out sccsid string fix, it won't work on SunOS 4.1.
++1.32 -> 1.33 Wed Aug 17 09:31:41 1994 (PUBLICLY AVAILABLE VERSION)
++ + Get back 5K of data space for the sccsid strings.
++ + Fix bug where cG fix in version 1.31 broke cw cursor positioning
++ when the change command extended the line.
++ + Fix core dump in map/seq code if character larger than 7 bits.
++ + Block signals when manipulating the SCR chains.
++ + Fix memory allocation for machines with multiple pointer sizes.
++1.31 -> 1.32 Mon Aug 15 14:27:49 1994
++ + Turn off recno mmap call for Solaris 2.4/SunOS 5.4.
++1.30 -> 1.31 Sun Aug 14 13:13:35 1994
++ + Fix bug were cG on the last line of a file wasn't done in line mode,
++ and where the cursor wasn't positioned correctly after exiting text
++ insert mode.
++ + Add termcap workaround to make function keys greater than 9 work
++ correctly (or fail if old-style termcap support).
++ + Change ex/vi to not flush mapped keys on error -- this is historic
++ practice, and people depended on it.
++ + Rework vi parser so that no command including a mapped key ever
++ becomes the '.' command, matching historic practice.
++ + Make <escape> cancellation in the vi parser match POSIX 1003.2.
++ + Fix curses bug where standout string was written for each standout
++ character, and where standout mode was never exited explicitly.
++ Fix bugs in curses SF/sf and SR/sr scrolling, as seen on Sun and
++ x86 consoles.
++ + The v/global commands execute the print command by default.
++ + The number option historically applies to ex as well as vi.
++1.29 -> 1.30 Mon Aug 8 10:30:42 1994
++ + Make first read into a temporary set the file's name.
++ + Permit any key to continue scrolling or ex commands -- this
++ allows stacked colon commands, and matches historic practice.
++ + Don't output normal ! command commentary in ex silent mode.
++ + Allow +/- flags after substitute commands, make line (flag)
++ offsets from vi mode match historic practice.
++ + Return <eof> to ex immediately, even if preceded by spaces. Rework
++ ex parser to do erase the prompt instead of depending on the print
++ routines to do it. Minor fixes to the ex parser for display of
++ default and scrolling commands. MORE EX PARSER CHANGES.
++1.28 -> 1.29 Fri Aug 5 10:18:07 1994
++ + Make the abbreviated ex delete command work (:dele---###lll for
++ example, is historically legal.
++ + When autoprint fires, multiple flags may be set, use ex_print
++ directly instead of the stub routines.
++ + Change v/global commands to turn off autoprint while running.
++ + Minor changes to make the ! command display match historic output.
++ + Rework the ex parser to permit multiple command separators without
++ commands -- MAJOR CHANGE, likely to introduce all sorts of new bugs.
++ + Fix cd command to expand argument in the context of each element
++ of the cdpath option, make relative paths always relative to the
++ current directory.
++ + Rework write/quit cases for temporary files, so that user's don't
++ discard them accidentally.
++ + Check for window size changes when continuing after a suspend.
++ + Fix memory problem in svi_screen, used free'd memory.
++ + Change the ex change, insert, append commands to match historic
++ cursor positions if no data entered by the user.
++ + Change ex format flags (#, l, p) to affect future commands, not
++ just the current one, to match historic practice.
++ + Make the user's EOF character an additional scroll character in ex.
++ + Fix ex ^D scrolling to be the value of the scroll option, not half
++ the screen.
++ + Fix buffer execution to match historic practice -- bugs where the
++ '*' command didn't work, and @<carriage-return> didn't work.
++ + Fix doubled reporting of deleted lines in filters.
++ + Rework the % ` / ? ( ) N n { and ^A commands to always cut into
++ numeric buffers regardless of the location or length of the cut.
++ This matches historic practice.
++ + Fix the { command to check the current line if the cursor doesn't
++ start on the first character of the line.
++ + Do '!' expansion in the ex read command arguments, it's historic
++ practice. In addition, it sets the last '!' command.
++1.27 -> 1.28 Wed Jul 27 21:29:18 1994
++ + Add support for scrolling using the CS and SF/sf/SR/sr termcap
++ strings to the 4BSD curses.
++ + Rework of getkey() introduced a bug where command interrupt put
++ nvi into an infinite loop.
++ + Piping through a filter historically cut the replaced lines into
++ the default buffer, although not the numeric ones.
++ + Read of a filter and !! historically moved to the first nonblank
++ of the resulting cursor line (most of the time).
++ + Rework cursor motion flags, to support '!' as a motion command.
++1.26 -> 1.27 Tue Jul 26 10:27:58 1994
++ + Add the meta option, to specify characters the shell will expand.
++ + Fix the read command to match historic practice, the white space
++ and bang characters weren't getting parsed correctly.
++ + Change SIGALRM handler to save and restore errno.
++ + Change SunOS include/compat.h to include <vfork.h> so that the
++ ex/filter.c code works again.
++ + Don't put lines deleted by the ex delete command into the numeric
++ buffers, matching historic practice.
++ + Fix; if appending to a buffer, default buffer historically only
++ references the appended text, not the resulting text.
++ + Support multiple, semi-colon separated search strings, and 'z'
++ commands after search strings.
++ + Make previous context mark setting match historic practice (see
++ docs/internals/context).
++ + Fix the set command to permit whitespace between the option and
++ the question mark, fix question marks in general.
++ + Fix bug where ex error messages could be accidentally preceded
++ by a single space.
++ + Fix bug where curses reorganization could lose screen specific
++ mappings as soon as any screen exited.
++ + Fix bug in paragraph code where invalid macros could be matched.
++ Make paragraph motions stop at formfeed (^L) characters.
++ + Change 'c' to match historic practice, it cut text into numeric
++ buffers.
++1.25 -> 1.26 Tue Jul 19 17:46:24 1994
++ + Ignore SIGWINCH if the screen size is unchanged; SunOS systems
++ deliver one when a screen is uncovered.
++ + Fix: don't permit a command with a motion component to wrap due
++ to wrapscan and return to the original cursor position.
++ + Fix: ^E wasn't beeping when reaching the bottom of the file.
++ + Fix bg/fg bug where tmp file exiting caused a NULL dereference.
++ + Rework file locking code to use fcntl(2) explicitly.
++ + Fix bug in section code where invalid macros could be matched.
++ + Fix bug where line number reset by vi's Q command.
++ + Add explicit character mode designation to character mode buffers.
++ + Add <sys/ioctl.h> include to sex/sex_window.c, needed by NET/2
++ vintage systems.
++ + Change to always flush a character during suspend, 4BSD curses
++ has the optimization where it doesn't flush after a standend().
++ + Fix bug on OSF1 where <curses.h> changes the values of VERASE,
++ VKILL and VWERASE to incorrect ones.
++ + Fix bug where optarg used incorrectly in main.c.
++ + Block all signals when acting on a signal delivery.
++ + Fix recovery bug where RCV_EMAIL could fire even if there wasn't
++ a backing file; format recovery message.
++1.24 -> 1.25 Sun Jul 17 14:33:38 1994
++ + Stop allowing keyboard suspends (^Z) in insert mode, it's hard
++ to get autowrite correct, and it's not historic practice.
++ + Fix z^, z+ to match historic practice.
++ + Bug in message handling, "vi +35 non-existent_file" lost the
++ status message because the "+35" pushed onto the stack erased
++ it. For now, change so that messages aren't displayed if there
++ are keys waiting -- may need to add a "don't-erase" bit to the
++ character in the stack instead.
++ + Bug in svi_msgflush(), where error messages could come out in
++ normal video.
++1.23 -> 1.24 Sat Jul 16 18:30:18 1994
++ + Fix core dump in exf.c, where editing a non-existent file and
++ exiting could cause already free'd memory to be free'd.
++ + Clean up numerous memory errors, courtesy of Purify.
++ + Change process wait code to fail if wait fails, and not attempt
++ to interpret the wait return information.
++ + Open recovery and DB files for writing as well as reading, System
++ V (fcntl) won't let you acquire LOCK_EX locks otherwise.
++ + Fix substitute bug where could malloc 0 bytes (AIX breaks).
++ + Permit the mapping of <carriage-return>, it's historic practice.
++ + Historic vi didn't eat <blank> characters before the force
++ flag, match historic practice.
++ + Bug in ex argument parsing, corrected for literal characters
++ twice.
++ + Delete screen specific maps when the screen closes.
++ + Move to the first non-<blank> in the line on startup; historic
++ practice.
++ + Change the ex visual command to move directly to a line if no
++ trailing 'z' command.
++ + Fix "[[" and "]]" to match historic practice (yet again...).
++ + Fix "yb" and "y{" commands to update the cursor correctly.
++ + Change "~<motion>" to match the yank cursor movement semantics
++ exactly.
++ + Move all of the curses related code into sex/svi -- major rework,
++ but should help in future ports.
++ + Fix bug in split code caused by new file naming code, where would
++ drop core when a split screen exited.
++ + Change svi_ex_write to do character display translation, so that
++ messages with file names in them are displayed correctly.
++ + Display the file name on split screens instead of a divider line.
++ + Fix move bug, wasn't copying lines before putting them.
++ + Fix bug were :n dropped core if no arguments supplied.
++ + Don't quote characters in executed buffer: "ifoo<esc>" should leave
++ insert mode after the buffer is executed.
++ + Tagpop and tagpush should set the absolute mark in case only moving
++ within a file.
++ + Skip leading whitespace characters before tags and cursor word
++ searches.
++ + Fix bug in ex_global where re_conv() was allocating the temporary
++ buffer and not freeing it.
++1.22 -> 1.23: Wed Jun 29 19:22:33 1994
++ + New <sys/cdefs.h> required "inline" to change to "__inline"
++ + Fix System V curses code for new ^Z support.
++ + Fix off-by-one in the move code, avoid ":1,$mo$" with only one
++ line in the buffer.
++ + Line orientation of motion commands was remembered too long,
++ i.e. '.' command could be incorrectly marked as line oriented.
++ + Move file modification time into EXF, so it's shared across
++ split screens.
++ + Put the prev[ious] command back in, people complained.
++ + Random fixes to next/prev semantics changed in 1.22.
++ + Historically vi doesn't only move to the last address if there's
++ ANYTHING after the addresses, e.g. ":3" moves to line 3, ":3|"
++ prints line 3.
++1.21 -> 1.22: Mon Jun 27 11:01:41 1994
++ + Make the line between split screens inverse video again.
++ + Delete the prev[ious] command, it's not useful enough to keep.
++ + Rework :args/file name handling from scratch -- MAJOR CHANGE,
++ likely to introduce all sorts of new bugs.
++ + Fix RE bug where no subexpressions in the pattern but there were
++ subexpressions referenced in the replacement, e.g. "s/XXX/\1/g".
++ + Change recovery to not leave unmodified files around after a
++ crash, by using the owner 'x' bit on unmodified backup files.
++ MAJOR CHANGE, the system recovery script has to change!
++ + Change -r option to delete recovery.* files that reference non-
++ existent vi.* files.
++ + Rework recovery locking so that fcntl(2) locking will work.
++ + Fix append (upper-case) buffers, broken by cut fixes.
++ + Fix | to not set the absolute motion mark.
++ + Read $HOME/.exrc file on startup if the effective user ID is
++ root. This makes running vi while su(1)'d work correctly.
++ + Use the full pathname of the file as the recovery name, not
++ just the last component. Matches historic practice.
++ + Keep marks in empty files from being destroyed.
++ + Block all caught signals before calling the DB routines.
++ + Make the line change report match historic practice (yanked
++ lines were different than everything else).
++ + Add section on multiple screens to the reference manual.
++ + Display all messages at once, combine onto a single line if
++ possible. Delete the trailing period from all messages.
++1.20 -> 1.21: Thu May 19 12:21:58 1994
++ + Delete the -l flag from the recover mail.
++ + Send the user email if ex command :preserve executed, this matches
++ historic practice. Lots of changes to the preserve and recovery
++ code, change preserve to snapshot files (again, historic practice).
++ + Make buffers match historic practice: "add logically stores text
++ into buffer a, buffer 1, and the unnamed buffer.
++ + Print <tab> characters as ^I on the colon command line if the
++ list option set.
++ + Adjust ^F and ^B scroll values in the presence of split screens
++ and small windows.
++ + Break msg* routines out from util.c into msg.c, start thinking
++ about message catalogs.
++ + Add tildeop set option, based on stevie's option of the same name.
++ Changes the ~ command into "[count] ~ motion", i.e. ~ takes a
++ trailing motion.
++ + Chose NOT to match historic practice on cursor positioning after
++ consecutive undo commands on a single line; see vi/v_undo.c for
++ the comment.
++ + Add a one line cache so that multiple changes to the same line
++ are only counted once (e.g. "dl35p" changes one line, not 35).
++ + Rework signals some more. Block file sync signals in vi routines
++ that interface to DB, so can sync the files at interrupt time.
++ Write up all of the signal handling arguments, see signal.c.
++1.19 -> 1.20: Thu May 5 19:24:57 1994
++ + Return ^Z to synchronous handling. See the dicussion in signal.c
++ and svi_screen.c:svi_curses_init().
++ + Fix bug where line change report was wrong in util.c:msg_rpt().
++1.18 -> 1.19: Thu May 5 12:59:51 1994
++ + Block DSUSP so that ^Y isn't delivered at SIGTSTP.
++ + Fix bug -- put into an empty file leaves the cursor at 1,0,
++ not the first nonblank.
++ + Fix bug were number of lines reported for the 'P' command was
++ off-by-one.
++ + Fix bug were 0^D wasn't being handled correctly.
++ + Delete remnants of ^Z as a raw character.
++ + Fix bug where if a map was an entire colon command, it may never
++ have been displayed.
++ + Final cursor position fixes for the vi T and t commands.
++ + The ex :next command took an optional ex command as it's first
++ argument similar to the :edit commands. Match historic practice.
++1.17 -> 1.18: Wed May 4 13:57:10 1994
++ + Rework curses information in the PORT/Makefile's.
++ + Minor fixes to ^Z asynchronous code.
++1.16 -> 1.17: Wed May 4 11:15:56 1994
++ + Make ex comment handling match historic practice.
++ + Make ^Z work asynchronously, we can no longer use the SIGTSTP
++ handler in the curses library.
++1.15 -> 1.16: Mon May 2 19:42:07 1994
++ + Make the 'p' and 'P' commands support counts, i.e. "Y10p" works.
++ + Make characters that map to themselves as the first part of the
++ mapping work, it's historic practice.
++ + Fix bug where "s/./\& /" discarded the space in the replacement
++ string.
++ + Add support for up/down cursor arrows in text input mode, rework
++ left/right support to match industry practice.
++ + Fix bug were enough character remapping could corrupt memory.
++ + Delete O_REMAPMAX in favor of setting interrupts after N mapped
++ characters without a read, delete the map counter per character.
++ MAJOR CHANGE. All of the interrupt signal handling has been
++ reworked so that interrupts are always turned on instead of
++ being turned on periodically, when an interruptible operation is
++ pending.
++ + Fix bug where vi wait() was interrupted by the recovery alarm.
++ + Make +cmd's and initial commands execute with the current line
++ set to the last line of the file. This is historic practice.
++ + Change "lock failed" error message to a file status message.
++ It always fails over NFS, and making all NFS files readonly
++ isn't going to fly.
++ + Use the historic line number format, but check for overflow.
++ + Fix bug where vi command parser ignored buffers specified as
++ part of the motion command.
++ + Make [@*]buffer commands on character mode buffers match historic
++ practice.
++ + Fix bug where the cmap/chf entries of the tty structure weren't
++ being cleared when new characters were read.
++ + Fix bug where the default command motion flags were being set
++ when the command was a motion component.
++ + Fix wrapmargin bug; if appending characters, and wrapmargin breaks
++ the line, an additional space is eaten.
++1.14 -> 1.15: Fri Apr 29 07:44:57 1994
++ + Make the ex delete command work in any empty file.
++ + Fix bug where 't' command placed the cursor on the character
++ instead of to its left.
++ + ^D and ^U didn't set the scroll option value historically.
++ Note, this change means that any user set value (e.g. 15^D)
++ will be lost when splitting the screen, since the split code
++ now resets the scroll value regardless.
++ + Fix the ( command to set the absolute movement mark.
++ + Only use TIOCGWINSZ for window information if SIGWINCH signal
++ caught.
++ + Delete the -l flag, and make -r work for multiple arguments.
++ Add the ex "recover[!] file" command.
++ + Switch into ex terminal mode and use the sex routines when
++ append/change/insert called from vi mode.
++ + Make ^F and ^B match historic practice. This required a fairly
++ extensive rework of the svi scrolling code.
++ + Cursor positioning in H, M, L, G (first non-blank for 1G) wasn't
++ being done correctly. Delete the SETLFNB flag. H, M, and L stay
++ logical movements (SETNNB) and G always moves to the first nonblank.
++ + System V uses "lines" and "cols", not "li" and "co", change as
++ necessary. Check termcap function returns for errors.
++ + Fix `<character> command to do start/end of line correction,
++ and to set line mode if starting and stopping at column 0.
++ + Fix bug in delete code where dropped core if deleted in character
++ mode to an empty line. (Rework the delete code for efficiency.)
++ + Give up on SunOS 4.1.X, and use "cc" instead of /usr/5bin/cc.
++ + Protect ex_getline routine from interrupted system calls (if
++ possible, set SA_RESTART on SIGALRM, too).
++ + Fix leftright scrolling bug, when moving to a shorter line.
++ + Do validity checking on the copy, move, t command target line
++ numbers.
++ + Change for System V % pattern broke trailing flags for empty
++ replacement strings.
++ + Fix bug when RCM flags retained in the saved dot structure.
++ + Make the ex '=' command work for empty files.
++ + Fix bug where special_key array was being free'd (it's no longer
++ allocated).
++ + Matches cut in line mode only if the starting cursor is at or
++ before the first nonblank in its line, and the ending cursor is
++ at or after the last nonblank in its line.
++ + Add the :wn command, so you can write a file and switch to a new
++ file in one command.
++ + Allow only a single key as an argument to :viusage.
++ + New movement code broke filter/paragraph operations in empty
++ files ("!}date" in an empty file was dropping core).
++1.12 -> 1.14: Mon Apr 18 11:05:10 1994 (PUBLICLY AVAILABLE VERSION, 4.4BSD)
++ + Fix FILE structure leakage in the ex filter code.
++ + Rework suspend code for System V curses. Nvi has to do the
++ the work, there's no way to get curses to do it right.
++ + Revert SunOS 4.1.X ports to the distributed curses. There's
++ a bug in Sun's implementation that we can't live with.
++ + Quit immediately if row/column values are unreasonable.
++ + Fix the function keys to match vi historic behavior.
++ + Replace the echo/awk magic in the Makefile's with awk scripts.
++1.11 -> 1.12: Thu Apr 14 11:10:19 1994
++ + Fix bug where only the first vi key was checked for validity.
++ + Make 'R' continue to overwrite after a <carriage-return>.
++ + Only display the "no recovery" message once.
++ + Rework line backup code to restore the line to its previous
++ condition.
++ + Don't permit :q in a .exrc file or EXINIT variable.
++ + Fix wrapscan option bug where forward searches become backward
++ searches and do cursor correction accordingly.
++ + Change "dd" to move the cursor to the first non-blank on the line.
++ + Delete cursor attraction to the first non-blank, change non-blank
++ motions to set the most attractive cursor position instead.
++ + Fix 'r' substitute option to set the RE to the last RE, not the
++ last substitute RE.
++ + Fix 'c' and 'g' substitute options to always toggle, and fix
++ edcompatible option to not reset them.
++ + Display ex error messages in inverse video.
++ + Fix errorbells option to match historic practice.
++ + Delete fixed character display table in favor of table built based
++ on the current locale.
++ + Add ":set octal" option, that displays unknown characters as octal
++ values instead of the default hexadecimal.
++ + Make all command and text input modes interruptible.
++ + Fix ex input mode to display error messages immediately, instead
++ of waiting for the lines to be resolved.
++ + Fix bug where vi calling append could overwrite the command.
++ + Fix off-by-one in the ex print routine tab code.
++ + Fix incorrect ^D test in vi text input routines.
++ + Add autoindent support for ex text insert routines.
++ + Add System V substitute command replacement pattern semantics,
++ where '%' means the last replacement pattern.
++ + Fix bug that \ didn't escape newlines in ex commands.
++ + Regularize the names of special characters to CH_*.
++ + Change hex insert character from ^Vx<hex_char> to ^X<hex_char>
++ + Integrate System V style curses, so SunOS and Solaris ports can
++ use the native curses implementation.
++1.10 -> 1.11: Thu Mar 24 16:07:45 EST 1994 (PUBLICLY AVAILABLE VERSION)
++ + Change H, M, and L to set the absolute mark, historical practice.
++ + Fix bug in stepping through multiple tags files.
++ + Add "remapmax" option that turns off map counts so you can remap
++ infinitely. If it's off, term_key() can be interrupted from the
++ keyboard, which will cause the buffers to flush. I also dropped
++ the default max number of remaps to 50. (Only Dave Hitz's TM
++ macros and maze appear to go over that limit.)
++ + Change :mkexrc to not dump w{300,1200,9600}, lisp options.
++ + Fix backward search within a line bug.
++ + Change all the includes of "pathnames.h" to use <>'s so that the
++ PORT versions can use -I. to replace it with their own versions.
++ + Make reads and writes interruptible. Rework code that enters and
++ leaves ex for '!' and filter commands, rework all interrupt and
++ timer code.
++ + Fix core dump when user displayed option in .exrc file.
++ + Fix bug where writing empty files didn't update the saved
++ modification time.
++ + Fix bug where /pattern/ addressing was always a backward search.
++ + Fix bug triggered by autoindent of more than 32 characters, where
++ nvi wasn't checking the right TEXT length.
++ + Fix bug where joining only empty lines caused a core dump.
++1.09 -> 1.10: Sat Mar 19 15:40:29 EST 1994
++ + Fix "set all" core dump.
++1.08 -> 1.09: Sat Mar 19 10:11:14 EST 1994
++ + If the tag's file path is relative, and it doesn't exist, check
++ relative to the tag file location.
++ + Fix ~ command to free temporary buffer on error return.
++ + Create vi.ref, a first cut at a reference document for vi.
++ The manual page and the reference document only document the
++ set options, so far.
++ + Fix 1G bug not always going to the first non-blank.
++ + Upgrade PORT/regex to release alpha3.4, from Henry Spencer.
++ + Add MKS vi's "cdpath" option, supporting a cd search path.
++ + Handle if search as a motion was discarded, i.e. "d/<erase>".
++ + Change nvi to not create multiple recovery files if modifying
++ a recovered file.
++ + Decide to ignore that the cursor is before the '$' when inserting
++ in list mode. It's too hard to fix.
++1.07 -> 1.08: Wed Mar 16 07:37:36 EST 1994
++ + Leftright and big line scrolling fixes. This meant more changes
++ to the screen display code, so there may be new problems.
++ + Don't permit search-style addresses until a file has been read.
++ + "c[Ww]" command incorrectly handled the "in whitespace" case.
++ + Fix key space allocation bug triggered by cut/paste under SunOS.
++ + Ex move command got the final cursor position wrong.
++ + Delete "optimize option not implemented" message.
++ + Make the literal-next character turn off mapping for the next
++ character in text input mode.
++1.06 -> 1.07: Mon Mar 14 11:10:33 EST 1994
++ + The "wire down" change in 1.05 broke ex command parsing, there
++ wasn't a corresponding change to handle multiple K_VLNEXT chars.
++ + Fix final position for vi's 't' command.
++1.05 -> 1.06: Sun Mar 13 16:12:52 EST 1994
++ + Wire down ^D, ^H, ^W, and ^V, regardless of the user's termios
++ values.
++ + Add ^D as the ex scroll command.
++ + Support ^Q as a literal-next character.
++ + Rework abbreviations to be delimited by any !inword() character.
++ + Add options description to the manual page.
++ + Minor screen cache fix for svi_get.c.
++ + Rework beautify option support to match historical practice.
++ + Exit immediately if not reading from a tty and a command fails.
++ + Default the SunOS 4.* ports to the distributed curses, not SMI's.
++1.04 -> 1.05: Thu Mar 24 16:07:45 EST 1994
++ + Make cursor keys work in input mode.
++ + Rework screen column code in vi curses screen. MAJOR CHANGE --
++ after this, we'll be debugging curses screen presentation from
++ scratch.
++ + Explode include files in vi.h into the source files.
++1.03 -> 1.04: Sun Mar 6 14:14:16 EST 1994
++ + Make the ex move command keep the marks on the moved lines.
++ + Change resize semantics so you can set the screen size to a
++ specific value. A couple of screen fixes for the resize code.
++ + Fixes for foreground/background due to SIGWINCH.
++ + Complete rework of all of vi's cursor movements. The underlying
++ assumption in the old code was that the starting cursor position
++ was part of the range of lines cut or deleted. The command
++ "d[[" is an example where this isn't true. Change it so that all
++ motion component commands set the final cursor position separately
++ from the range, as it can't be done correctly later. This is a
++ MAJOR CHANGE -- after this change, we'll be debugging the cursor
++ positioning from scratch.
++ + Rewrite the B, b, E, e commands to use vi's getc() interface
++ instead of rolling their own.
++ + Add a second MARK structure, LMARK, which is the larger mark
++ needed by the logging and mark queue code. Everything else uses
++ the reworked MARK structure, which is simply a line/column pair.
++ + Rework cut/delete to not expect 1-past-the-end in the range, but
++ to act on text to the end of the range, inclusive.
++ + Sync on write's, to force NFS to flush.
++1.01 -> 1.03: Sun Jan 23 17:50:35 EST 1994 (PUBLICLY AVAILABLE VERSION)
++ + Tag stack fixes, was returning to the tag, not the position from
++ which the user tagged.
++ + Only use from the cursor to the end of the word in cursor word
++ searches and tags. (Matches historical vi behavior.)
++ + Fix delete-last-line bug when line number option set.
++ + Fix usage line for :split command.
++ + If O_NUMBER set, long input lines would eventually fail, the column
++ count for the second screen of long lines wasn't set correctly.
++ + Fix for [[ reaching SOF with a column longer than the first line.
++ + Fix for multiple error messages if no screen displayed.
++ + Fix :read to set alternate file name as in historical practice.
++ + Fix cut to rotate the numeric buffers if line mode flag set.
++1.00 -> 1.01: Wed Jan 12 13:37:18 EST 1994
++ + Don't put cut items into numeric buffers if cutting less than
++ parts of two lines.
++0.94 -> 1.00: Mon Jan 10 02:27:27 EST 1994
++ + Read-ahead not there; BSD tty driver problem, SunOS curses
++ problem.
++ + Global command could error if it deleted the last line of
++ the file.
++ + Change '.' to only apply to the 'u' if entered immediately
++ after the 'u' command. "1pu.u.u. is still broken, but I
++ expect that it's going to be sacrificed for multiple undo.
++ + If backward motion on a command, now move to the point; get
++ yank cursor positioning correct.
++ + Rework cut buffers to match historic practice -- yank/delete
++ numeric buffers redone sensibly, ignoring historic practice.
++0.92 -> 0.93: Mon Dec 20 19:52:14 EST 1993
++ + Christos Zoulas reimplemented the script windows using pty's,
++ which means that they now work reasonably. The down side of
++ this is that almost all ports other than 4.4BSD need to include
++ two new files, login_tty.c and pty.c from the PORT/clib directory.
++ I've added them to the Makefiles.
++ + All calloc/malloc/realloc functions now cast their pointers, for
++ SunOS -- there should be far fewer warning messages, during the
++ build. The remaining messages are where CHAR_T's meet char *'s,
++ i.e. where 8-bit clean meets strcmp.
++ + The user's argument list handling has been reworked so that there
++ is always a single consistent position for use by :next, :prev and
++ :rewind.
++ + All of the historical options are now at least accepted, although
++ not all of them are implemented. (Edcompatible, hardtabs, lisp,
++ optimize, redraw, and slowopen aren't implemented.)
++ + The RE's have been reworked so that matches of length 0 are handled
++ in the same way as vi used to handle them.
++ + Several more mapping fixes and ex parser addressing fixes.
+diff -Naur nvi-1.81.6.orig/nvi-1.79/docs/tutorial/vi.advanced nvi-1.81.6/nvi-1.79/docs/tutorial/vi.advanced
+--- nvi-1.81.6.orig/nvi-1.79/docs/tutorial/vi.advanced 1970-01-01 01:00:00.000000000 +0100
++++ nvi-1.81.6/nvi-1.79/docs/tutorial/vi.advanced 2008-06-22 20:35:35.000000000 +0200
+@@ -0,0 +1,1458 @@
++Section 26: Index to the rest of the tutorial
++
++The remainder of the tutorial can be perused at your leisure. Simply find the
++topic of interest in the following list, and {/Section xx:/^M} to get to the
++appropriate section. (Remember that ^M means the return key)
++
++The material in the following sections is not necessarily in a bottom up
++order. It should be fairly obvious that if a section mentions something with
++which you are not familiar, say, buffers, you might {/buffer/^M} followed by
++several {n} to do a keyword search of the file for more details on that item.
++Another point to remember is that commands are surrounded by curly-braces and
++can therefore be found rather easily. To see where, say, the X command is
++used try {/{X}/^M}. Subsequent {n} will show you other places the command was
++used. We have tried to maintain the convention of placing the command letter
++surrounded by curly-braces on the section line where that command is
++mentioned.
++
++Finally, you should have enough 'savvy' at this point to be able to do your
++own experimentation with commands without too much hand-holding on the part of
++the tutorial. Experimentation is the best way to learn the effects of the
++commands.
++
++ Section Topic - description
++ ------- -------------------
++(Sections 1 through 25 are located in the file vi.beginner.)
++ 1 introduction: {^F} {ZZ}
++ 2 introduction (con't) and positioning: {^F} {^B}
++ 3 introduction (con't) and positioning: {^F} {^B}
++ 4 positioning: {^F} {^B} ^M (return key)
++ 5 quitting: {:q!} ^M key
++ 6 marking, cursor and screen positioning: {m} {G} {'} {z}
++ 7 marking, cursor and screen positioning: {m} {G} {'} {z}
++ 8 marking, cursor and screen positioning: {z} {m} {'}
++ 9 marking and positioning: {m} {''}
++ 10 line positioning: {^M} {-}
++ 11 scrolling with {^M}
++ 12 scrolling with {-} and screen adjustment {z}
++ 13 notes on use of tutorial
++ 14 other scrolling and postioning commands: {^E} {^Y} {^D} {^U}
++ 15 searching: {/ .. /^M}
++ 16 searching: {? .. ?^M} {n} (in search strings ^ $)
++ 17 searching: \ and magic-characters in search strings
++ 18 colon commands, exiting: {:} {ZZ}
++ 19 screen positioning: {H} {M} {L}
++ 20 character positioning: {w} {b} {0} {W} {B} {e} {E} {'} {`}
++ 21 cursor positioning: {l} {k} {j} {h}
++ 22 adding text: {i} {a} {I} {A} {o} {O} ^[ (escape key)
++ 23 character manipulation: {f} {x} {X} {w} {l} {r} {R} {s} {S} {J}
++ 24 undo: {u} {U}
++ 25 review
++(The following sections are in this file.)
++ 26 Index to the rest of the tutorial ******** YOU ARE HERE *******
++ 27 discussion of repeat counts and the repeat command: {.}
++ 28 more on low-level character motions: {t} {T} {|}
++ 29 advanced correction operators: {d} {c}
++ 30 updating the screen: {^R}
++ 31 text buffers: {"}
++ 32 rearranging and duplicating text: {p} {P} {y} {Y}
++ 33 recovering lost lines
++ 34 advanced file manipulation with vi
++ 34.1 more than one file at a time: {:n}
++ 34.2 reading files and command output: {:r}
++ 34.3 invoking vi from within vi: {:e} {:vi}
++ 34.4 escaping to a shell: {:sh} {:!}
++ 34.5 writing parts of a file: {:w}
++ 34.6 filtering portions of text: {!}
++ 35 advanced searching: magic patterns
++ 36 advanced substitution: {:s}
++ 37 advanced line addressing: {:p} {:g} {:v}
++ 38 higher level text objects and nroff: ( ) { } [[ ]]
++ 39 more about inserting text
++ 40 more on operators: {d} {c} {<} {>} {!} {=} {y}
++ 41 abbreviations: {:ab}
++ 42 vi's relationship with the ex editor: {:}
++ 43 vi on hardcopy terminals and dumb terminals: open mode
++ 44 options: {:set} {setenv EXINIT}
++ 44.1 autoindent
++ 44.2 autoprint
++ 44.3 autowrite
++ 44.4 beautify
++ 44.5 directory
++ 44.6 edcompatible
++ 44.7 errorbells
++ 44.8 hardtabs
++ 44.9 ignorecase
++ 44.10 lisp
++ 44.11 list
++ 44.12 magic
++ 44.13 mesg
++ 44.14 number
++ 44.15 open
++ 44.16 optimize
++ 44.17 paragraphs
++ 44.18 prompt
++ 44.19 readonly
++ 44.20 redraw
++ 44.21 remap
++ 44.22 report
++ 44.23 scroll
++ 44.24 sections
++ 44.25 shell
++ 44.26 shiftwidth
++ 44.27 showmatch
++ 44.28 slowopen
++ 44.29 tabstop
++ 44.30 tags
++ 44.31 taglength
++ 44.32 term
++ 44.33 terse
++ 44.34 timeout
++ 44.35 ttytype
++ 44.36 warn
++ 44.37 window
++ 44.38 wrapscan
++ 44.39 wrapmargin
++ 44.40 writeany
++ 44.41 w300, w1200, w9600
++
++Section 27: repetition counts and the repeat command {.}
++
++Most vi commands will use a preceding count to affect their behavior in some
++way. We have already seen how {3x} deletes three characters, and {22G} moves
++us to line 22 of the file. For almost all of the commands, one can survive by
++thinking of these leading numbers as a 'repeat count' specifying that the
++command is to be repeated so many number of times.
++
++Other commands use the repeat count slightly differently, like the {G} command
++which use it as a line number.
++
++For example:
++
++{3^D} means scroll down in the file three lines. Subsequent {^D} OR {^U} will
++scroll only three lines in their respective directions!
++
++{3z^M} says put line three of the file at the top of the screen, while {3z.}
++says put line three as close to the middle of the screen as possible.
++
++{50|} moves the cursor to column fifty in the current line.
++
++{3^F} says move forward 3 screenfulls. This is a repetition count. The
++documents advertise that {3^B} should move BACK three screenfulls, but I
++can't get it to work.
++
++Position the cursor on some text and try {3r.}. This replaces three characters
++with '...'. However, {3s.....^[} is the same as {3xi.....^[}.
++
++Try {10a+----^[}.
++
++A very useful instance of a repetition count is one given to the '.' command,
++which repeats the last 'change' command. If you {dw} and then {3.}, you will
++delete first one and then three words. You can then delete two more words with
++{2.}. If you {3dw}, you will delete three words. A subsequent {.} will delete
++three more words. But a subsequent {2.} will delete only two words, not three
++times two words.
++
++Caveat: The author has noticed that any repetition count with {^B} will NOT
++work: indeed, if you are at the end of your file and try {3^B} sufficiently
++often, the editor will hang you in an infinite loop. Please don't try it:
++take my word for it.
++
++Section 28: {t} {T} {|}
++
++Position the cursor on line 13 below:
++
++Line 13: Four score and seven years ago, our forefathers brought ...
++
++Note that {fv} moves the cursor on/over the 'v' in 'seven'. Do a {0} to return
++to the beginning of the line and try a {tv}. The cursor is now on/over the
++first 'e' in 'seven'. The {f} command finds the next occurrence of the
++specified letter and moves the cursor to it. The {t} command finds the
++specified letter and moves the cursor to the character immediately preceding
++it. {T} searches backwards, as does {F}.
++
++Now try {60|}: the cursor is now on the 'o' in 'brought', which is the
++sixtieth character on the line.
++
++Section 29: {d} {c}
++
++Due to their complexity we have delayed discussion of two of the most powerful
++operators in vi until now. Effective use of these operators requires more
++explanation than was deemed appropriate for the first half of the tutorial.
++
++{d} and {c} are called operators instead of commands because they consist of
++three parts: a count specification or a buffer specification (see section
++#BUFFERS), the {d} or {c}, and the object or range description. We will not
++discuss buffers at this stage, but will limit ourselves to count
++specifications. Examples speak louder than words: position the cursor at the
++beginning of line 14:
++
++Line 14: Euclid alone has looked on beauty bear.
++
++Obviously, there is something wrong with this quotation. Type {2fb} to
++position the cursor on the 'b' of 'bear'. Now, type {cwbare^[}
++and observe the results. The {cw} specifies that the change command {c} is to
++operate on a word object. More accurately, it specifies that the range of the
++change command includes the next word.
++
++Position the cursor on the period in Line 14. (one way is to use {f.})
++Now, type {cbbeast^[}. This specifies the range of the change command to be the
++previous word (the 'b' reminiscent of the {b} command). If we had wished to
++delete the word rather than change it, we would have used the {d} operator,
++rather than the {c} operator.
++
++Position the cursor at the beginning of the line with {0}. Type
++{d/look/^M}. The search string specified the range of the delete.
++Everything UP TO the word 'looking' was deleted from the line.
++
++In general, almost any command that would move the cursor will specify a range
++for these commands. The most confusing exception to this rule is when {dd} or
++{cc} is entered: they refer to the whole line. Following is a summary of the
++suffixes (suffices? suffici?) and the ranges they specify:
++
++ suffix will delete{d}/change{c}
++ ------ ------------------------
++ ^[ cancels the command
++ w the word to the right of the cursor
++ W ditto, but ignoring punctuation
++ b the word to the left of the cursor
++ B ditto, but ignoring punctuation
++ e see below.
++ E ditto
++ (space) a character
++ $ to the end of the line
++ ^ to the beginning of the line
++ / .. / up to, but not including, the string
++ ? .. ? back to and including the string
++ fc up to and including the occurrence of c
++ Fc back to and including the occurrence of c
++ tc up to but not including the occurrence of c
++ Tc back to but not including the occurrence of c
++ ^M TWO lines (that's right: two)
++ (number)^M that many lines plus one
++ (number)G up to and including line (number)
++ ( the previous sentence if you are at the beginning of
++ the current sentence, or the current sentence up to where
++ you are if you are not at the beginning of the current
++ sentence. Here, 'sentence' refers to the intuitive
++ notion of an English sentence, ending with '!', '?',
++ or '.' and followed by an end of line or two spaces.
++ ) the rest of the current sentence
++ { analogous to '(', but in reference to paragraphs:
++ sections of text surrounded by blank lines
++ } analogous to ')', but in reference to paragraphs
++ [[ analogous to '(', but in reference to sections
++ ]] analogous to ')', but in reference to sections
++ H the first line on the screen
++ M the middle line on the screen
++ L the last line on the screen
++ 3L through the third line from the bottom of the screen
++ ^F forward a screenful
++ ^B backward a screenful
++ :
++ : etc. etc. etc.
++
++This list is not exhaustive, but it should be sufficient to get the idea
++across: after the {c} or {d} operator, you can specify a range with another
++move-the-cursor command, and that is the region of text over which the command
++will be effective.
++
++Section 30: updating the screen {^R}
++
++Vi tries to be very intelligent about the type of terminal you are working on
++and tries to use the in-terminal computing power (if any) of your terminal.
++Also if the terminal is running at a low baud rate (say 1200 or below), vi sets
++various parameters to make things easier for you. For example, if you were
++running on a 300 baud terminal (that's 30 characters per second transmission
++rate) not all 24 lines of the screen would be used by vi. In addition, there
++is a large portion of the editor keeping track of what your screen currently
++looks like, and what it would look like after a command has been executed. Vi
++then compares the two, and updates only those portions of the screen that have
++changed.
++
++Furthermore, some of you may have noticed (it depends on your terminal) that
++deleting lines or changing large portions of text may leave some lines on the
++screen looking like:
++@
++meaning that this line of the screen does not correspond to any line in your
++file. It would cost more to update the line than to leave it blank for the
++moment. If you would like to see your screen fully up-to-date with the
++contents of your file, type {^R}.
++
++To see it in action, delete several lines with {5dd}, type {^R}, and then type
++{u} to get the lines back.
++
++Here is as good a place as any to mention that if the editor is displaying the
++end of your file, there may be lines on the screen that look like:
++~
++indicating that that screen line would not be affected by {^R}. These lines
++simply indicate the end of the file.
++
++Section 31: text buffers {"}
++
++Vi gives you the ability to store text away in "buffers". This feature is very
++convenient for moving text around in your file. There are a total of thirty-
++five buffers available in vi. There is the "unnamed" buffer that is used by all
++commands that delete text, including the change operator {c}, the substitute
++and replace commands {s} and {r}, as well as the delete operator {d} and delete
++commands {x} and {X}. This buffer is filled each time any of these commands
++are used. However, the undo command {u} has no effect on the unnamed buffer.
++
++There are twenty-six buffers named 'a' through 'z' which are available for the
++user. If the name of the buffer is capitalized, then the buffer is not
++overwritten but appended to. For example, the command {"qdd} will delete one
++line and store that line in the 'q' buffer, destroying the previous contents of
++the buffer. However, {"Qdd} will delete one line of text and append that line
++to the current contents of the 'q' buffer.
++
++Finally, there are nine buffers named '1' through '9' in which the last nine
++deletes are stored. Buffer 1 is the default buffer for the modify commands and
++is sometimes called the unnamed buffer.
++
++To reference a specific buffer, use the double-quote command {"} followed by
++the name of the buffer. The next two sections show how buffers can be used to
++advantage.
++
++Section 32: rearranging and duplicating text: {y} {Y} {p} {P}
++
++Position yourself on line 15 below and {z^M}:
++
++Line 15: A tree as lovely as a poem ...
++Line 16: I think that I shall never see
++
++Type {dd}. Line 15 has disappeared and been replaced with the empty line (one
++with the single character @ on it) or (again depending on your terminal) Line
++16 has moved up and taken its place. We could recover Line 15 with an undo
++{u} but that would simply return it to its original location. Obviously, the
++two lines are reversed, so we want to put line 15 AFTER line 16. This is
++simply done with the put command {p}, which you should type now. What has
++happened is that {dd} put Line 15 into the unnamed buffer, and the {p} command
++retrieved the line from the unnamed buffer.
++
++Now type {u} and observe that Line 15 disappears again (the put was undone
++without affecting the unnamed buffer). Type {P} and see that the capital {P}
++puts the line BEFORE the cursor.
++
++To get Line 15 where it belongs again type {dd}{p}.
++
++Also in Line 15 note that the words 'tree' and 'poem' are reversed. Using the
++unnamed buffer again: {ft}{dw}{ma}{fp}{P}{w}{dw}{`aP} will set things aright
++(note the use of the reverse quote).
++
++The put commands {p} and {P} do not affect the contents of the buffer.
++Therefore, multiple {p} or {P} will put multiple copies of the unnamed buffer
++into your file.
++
++Experiment with {d} and {p} on words, paragraphs, etc. Whatever {d}
++deletes, {p} can put.
++
++Position the cursor on Line 17 and {z^M}:
++
++Line 17: interest apple cat elephant boy dog girl hay farmer
++
++Our task is to alphabetize the words on line 17. With the named buffers (and a
++contrived example) it is quite easy:
++
++{"idw}{"adw}{"cdw}{"edw}{"bdw}{"ddw}{"gdw}{"hdw}{"fdw}
++
++stores each of the words in the named buffer corresponding to the first letter
++of each of the words ('interest' goes in buffer "i, 'apple' goes in buffer "a,
++etc.). Now to put the words in order type:
++
++{"ap$}{"bp$}{"cp$}{"dp$}{"ep$}{"fp$}{"gp$}{"hp$}{"ip$}
++
++Notice that, because 'farmer' was at the end of the line, {dw} did not include
++a space after it, and that, therefore, there is no space between 'farmer' and
++'girl'. This is corrected with {Fg}{i ^[}.
++
++This example could have been done just as easily with lines as with
++words.
++
++You do not have to delete the text in order to put it into a buffer. If all
++you wish to do is to copy the text somewhere else, don't use {d}, rather use
++the yank commands {y} or {Y}. {y} is like {d} and {c} - an operator rather
++than a command. It, too, takes a buffer specification and a range
++specification. Therefore, instead of {dw}{P} to load the unnamed buffer with a
++word without deleting the word, use {yw} (yank a word).
++
++{Y} is designed yank lines, and not arbitrary ranges. That is, {Y} is
++equivalent to {yy} (remember that operators doubled means the current line),
++and {3Y} is equivalent to {3yy}.
++
++If the text you yank or modify forms a part of a line, or is an object such as
++a sentence which partially spans more than one line, then when you put the text
++back, it will be placed after the cursor (or before if you use {P}). If the
++yanked text forms whole lines, they will be put back as whole lines, without
++changing the current line. In this case, the put acts much like the {o} or {O}
++command.
++
++The named buffers "a through "z are not affected by changing edit files.
++However, the unnamed buffer is lost when you change files, so to move text from
++one file to another you should use a named buffer.
++
++Section 33: recovering lost lines
++
++Vi also keeps track of the last nine deletes, whether you ask for it or not.
++This is very convenient if you would like to recover some text that was
++accidentally deleted or modified. Position the cursor on line 18 following,
++and {z^M}.
++
++
++Line 18: line 1
++Line 19: line 2
++Line 20: line 3
++Line 21: line 4
++Line 22: line 5
++Line 23: line 6
++Line 24: line 7
++Line 25: line 8
++Line 26: line 9
++Type {dd} nine times: now don't cheat with {9dd}! That is totally different.
++
++The command {"1p} will retrieve the last delete. Furthermore, when the
++numbered buffers are used, the repeat-command command {.} will increment the
++buffer numbers before executing, so that subsequent {.} will recover all nine
++of the deleted lines, albeit in reverse order. If you would like to review the
++last nine deletes without affecting the buffers or your file, do an undo {u}
++after each put {p} and {.}:
++
++{"1p}{u}{.}{u}{.}{u}{.}{u}{.}{u}{.}{u}{.}{u}{.}{u}{.}
++
++will show you all the buffers and leave them and your file intact.
++
++If you had cheated above and deleted the nine lines with {9dd}, all nine lines
++would have been stored in both the unnamed buffer and in buffer number 1.
++(Obviously, buffer number 1 IS the unnamed buffer and is just the default
++buffer for the modify commands.)
++
++Section 34: advanced file manipulation: {:r} {:e} {:n} {:w} {!} {:!}
++
++We've already looked at writing out the file you are editing with the
++{:w} command. Now let's look at some other vi commands to make editing
++more efficient.
++
++Section 34.1: more than one file at a time {:n} {:args}
++
++Many times you will want to edit more than one file in an editing session.
++Instead of entering vi and editing the first file, exiting, entering vi and
++editing the second, etc., vi will allow you to specify ALL files that you wish
++to edit on the invocation line. Therefore, if you wanted to edit file1 and
++file2:
++
++% vi file1 file2
++
++will set up file1 for editing. When you are done editing file one, write it
++out {:w^M} and then type {:n^M} to get the next file on the list. On large
++programming projects with many source files, it is often convenient just to
++specify all source files with, say:
++
++% vi *.c
++
++If {:n^M} brings in a file that does not need any editing, another {:n^M}
++will bring in the next file.
++
++If you have made changes to the first file, but decide to discard these changes
++and proceed to the next file, {:n!^M} forces the editor to discard the current
++contents of the editor.
++
++You can specify a new list of files after {:n}; e.g., {:n f1 f2 f3^M}. This
++will replace the current list of files (if any).
++
++You can see the current list of files being edited with {:args^M}.
++
++Section 34.2: reading files and command output: {:r}
++
++Typing {:r fname^M} will read the contents of file fname into the editor and
++put the contents AFTER the cursor line.
++
++Typing {:r !cmd^M} will read the output of the command cmd and place that
++output after the cursor line.
++
++Section 34.3: invoking vi from within vi: {:e} {:vi}
++
++To edit another file not mentioned on the invocation line, type {:e filename^M}
++or {:vi filename^M}. If you wish to discard the changes to the current file,
++use the exclamation point after the command, e.g. {:e! filename^M}.
++
++Section 34.4: escaping to a shell: {:sh} {:!} {^Z}
++
++Occasionally, it is useful to interrupt the current editing session to perform
++a UNIX task. However, there is no need to write the current file out, exit
++the editor, perform the task, and then reinvoke the editor on the same file.
++One thing to do is to spin off another process. If there are several UNIX
++commands you will need to execute, simply create another shell with {:sh^M}.
++At this point, the editor is put to sleep and will be reawakened when you log
++out of the shell.
++
++If it is a single command that you want to execute, type {:!cmd^M}, where cmd
++is the command that you wish to run. The output of the command will come to
++the terminal as normal, and will not be made part of your file. The message
++"[Hit return to continue]" will be displayed by vi after the command is
++finished. Hitting return will then repaint the screen. Typing another
++{:!cmd^M} at this point is also acceptable.
++
++However, there is a quicker, easier way: type {^Z}. Now this is a little
++tricky, but hang in there. When you logged into UNIX, the first program you
++began communicating with was a program that is called a "shell" (i.e. it 'lays
++over' the operating system protecting you from it, sort of like a considerate
++porcupine). When you got your first prompt on the terminal (probably a '%'
++character) this was the shell telling you to type your first command. When
++you typed {vi filename} for some file, the shell did not go away, it just went
++to sleep. The shell is now the parent of vi. When you type {^Z} the editor
++goes to sleep, the shell wakes up and says "you rang?" in the form of another
++prompt (probably '%'). At this point you are talking to the shell again and
++you can do anything that you could before including edit another file! (The
++only thing you can't do is log out: you will get the message "There are
++stopped jobs.")
++
++When your business with the shell is done, type {fg} for 'foreground' and the
++last process which you ^Z'd out of will be reawakened and the shell will go
++back to sleep. I will refer you to the documentation for the Berkeley shell
++'csh' for more information on this useful capability.
++
++Section 34.5: writing parts of a file: {:w}
++
++The {:w} command will accept a range specifier that will then write only a
++selected range of lines to a file. To write this section to a file, position
++the cursor on the section line (e.g. {/^Section 34.5:/^M}) and {z^M}. Now type
++{^G} to find out the line number (it will be something like "line 513"). Now
++{/^Section 34.6:/-1^M} to find the last line of this section, and {^G} to find
++its line number (it will be something like 542). To write out this section of
++text by itself to a separate file which we will call "sepfile", type
++{:510,542w sepfile^M}. If sepfile already exists, you will have to use the
++exclamation point: {:1147,1168w! sepfile^M} or write to a different, non-
++existent file.
++
++{:!cat sepfile^M} will display the file just written, and it should be the
++contents of this section.
++
++There is an alternate method of determining the line numbers for the write.
++{:set number^M} will repaint the screen with each line numbered. When the file
++is written and the numbers no longer needed, {:set nonumber^M} will remove the
++numbers, and {^R} will adjust the screen.
++
++Or, if you remember your earlier lessons about marking lines of text,
++mark the beginning and ending lines. Suppose we had used {ma} to mark the
++first line of the section and {mb} to mark the last. Then the command
++{:'a,'bw sepfile^M} will write the section into "sepfile". In general,
++you can replace a line number with the 'name' of a marked line (a single-quote
++followed by the letter used to mark the line)
++
++
++Section 34.6: filtering portions of text: {!}
++
++{!} is an operator like {c} and {d}. That is, it consists of a repetition
++count, {!}, and a range specifier. Once the {!} operator is entered in its
++entirety, a prompt will be given at the bottom of the screen for a UNIX
++command. The text specified by the {!} operator is then deleted and
++passed/filtered/piped to the UNIX command you type. The output of the UNIX
++command is then placed in your file. For example, place the cursor at the
++beginning of the following line and {z^M}:
++
++ls -l vi.tutorial
++********* marks the bottom of the output from the ls command **********
++
++Now type {!!csh^M}. The line will be replaced with the output from the ls
++command. The {u} command works on {!}, also.
++
++Here is an extended exercise to display some of these capabilities. When this
++tutorial was prepared, certain auxiliary programs were created to aid in its
++development. Of major concern was the formatting of sections of the tutorial
++to fit on a single screen, particularly the first few sections. What was
++needed was a vi command that would 'format' a paragraph; that is, fill out
++lines with as many words as would fit in eighty columns. There is no such vi
++command. Therefore, another method had to be found.
++
++Of course, nroff was designed to do text formatting. However, it produces a
++'page'; meaning that there may be many blank lines at the end of a formatted
++paragraph from nroff. The awk program was used to strip these blank lines from
++the output from nroff. Below are the two files used for this purpose: I refer
++you to documentation on nroff and awk for a full explanation of their function.
++Position the cursor on the next line and {z^M}.
++
++******** contents of file f **********
++#
++nroff -i form.mac | awk "length != 0 { print }"
++***** contents of file form.mac ******
++.na
++.nh
++.ll 79
++.ec 
++.c2 
++.cc 
++**************************************
++
++Determine the line numbers of the two lines of file f. They should be
++something like 574 and 575, although you better double check: this file is
++under constant revision and the line numbers may change inadvertently. Then
++{:574,575w f^M}. Do the same for the lines of file form.mac. They will be
++approximately 577 and 582. Then {:577,582w form.mac^M}. File f must have
++execute privileges as a shell file: {:!chmod 744 f^M}.
++
++Observe that this paragraph is
++rather ratty in appearance. With our newly created files we can
++clean it up dramatically. Position the cursor at the beginning
++of this paragraph and type the following sequence of
++characters
++(note that we must abandon temporarily our convention
++of curly braces since the command itself contains a curly brace - we
++will use square brackets for the nonce): [!}f^M].
++
++Here is a brief explanation of what has happened. By typing [!}f^M] we
++specified that the paragraph (all text between the cursor and the first blank
++line) will be removed from the edit file and piped to a UNIX program called
++"f". This is a shell command file that we have created. This shell file runs
++nroff, pipes its output to awk to remove blank lines, and the output from awk
++is then read back into our file in the place of the old, ratty paragraph. The
++file form.mac is a list of commands to nroff to get it to produce paragraphs
++to our taste (the right margin is not justified, the line is 79 characters
++long, words are not hyphenated, and three nroff characters are renamed to
++avoid conflict: note that in this file, the {^G} you see there is vi's display
++of the control-G character, and not the two separate characters ^ up-arrow and
++G upper-case g).
++
++This example was created before the existence of the fmt program. I now type
++[!}fmt^M] to get the same effect much faster. Actually, I don't type those
++six keys each time: I have an abbreviation (which see).
++
++Section 35: searching with magic patterns
++
++The documentation available for "magic patterns" (i.e. regular expressions) is
++very scanty. The following should explain this possibly very confusing feature
++of the editor. This section assumes that the magic option is on. To make
++sure, you might want to type {:set magic^M}.
++
++By "magic pattern" we mean a general description of a piece of text that the
++editor attempts to find during a search. Most search patterns consist of
++strings of characters that must be matched exactly, e.g. {/card/^M} searches
++for a specific string of four characters. Let us suppose that you have
++discovered that you consistently have mistyped this simple word as either ccrd
++or czrd (this is not so far-fetched for touch typists). You could {/ccrd/^M}
++and {n} until there are no more of this spelling, followed by {/czrd/^M} and
++{n} until there are no more of these. Or you could {/c.rd/^M} and catch all of
++them on the first pass. Try typing {/c.rd/^M} followed by several {n} and
++observe the effect.
++
++Line 27: card cord curd ceard
++
++When '.' is used in a search string, it has the effect of matching any single
++character.
++
++The character '^' (up-arrow) used at the beginning of a search string means
++the beginning of the line. {/^Line 27/^M} will find the example line above,
++while {/Line 27/^M} will find an occurrence of this string anywhere in the
++line.
++
++Similarly, {/ the$/^M} will find all occurrences of the word 'the' occurring
++at the end of a line. There are several of them in this file.
++
++Note that {:set nomagic^M} will turn off the special meaning of these magic
++characters EXCEPT for '^' and '$' which retain their special meanings at the
++beginning and end of a search string. Within the search string they hold no
++special meaning. Try {/\/ the$\//^M} and note that the dollar-sign is not the
++last character in the search string. Let the dollar-sign be the last
++character in the search string, as in {/\/ the$/^M} and observe the result.
++
++Observe the result of {/back.*file/^M}. This command, followed by sufficient
++{n}, will show you all lines in the file that contain both the words 'back'
++and 'file' on the same line. The '*' magic character specifies that the
++previous regular expression (the '.' in our example) is to be repeatedly
++matched zero or more times. In our example we specified that the words 'back'
++and 'file' must appear on the same line (they may be parts of words such as
++'backwards' or 'workfile') separated by any number (including zero) of
++characters.
++
++We could have specified that 'back' and 'file' are to be words by themselves by
++using the magic sequences '\<' or '\>'. E.g. {/\<back\>.*\<file\>/^M}. The
++sequence '\<' specifies that this point of the search string must match the
++beginning of a word, while '\>' specifies a match at the end of a word. By
++surrounding a string with these characters we have specified that they must be
++words.
++
++To find all words that begin with an 'l' or a 'w', followed by an 'a' or an
++'e', and ending in 'ing', try {/\<[lw][ea][a-z]*ing\>/^M}. This will match
++words like 'learning', 'warning', and 'leading'. The '[..]' notation matches
++exactly ONE character. The character matched will be one of the characters
++enclosed in the square brackets. The characters may be specified individually
++as in [abcd] or a '-' may be used to specify a range of characters as in [a-d].
++That is, [az] will match the letter 'a' OR the letter 'z', while [a-z] will
++match any of the lower case letters from 'a' through 'z'. If you would like to
++match either an 'a', a '-', or a 'z', then the '-' must be escaped: [a\-z] will
++match ONE of the three characters 'a', '-', or 'z'.
++
++If you wish to find all Capitalized words, try {/\<[A-Z][a-z]*\>/^M}. The
++following will find all character sequences that do NOT begin with an
++uncapitalized letter by applying a special meaning to the '^' character in
++square brackets: {/\<[^a-z][a-z]*\>/^M}. When '^' is the first character of a
++square-bracket expression, it specifies "all but these characters". (No
++one claimed vi was consistent.)
++
++To find all variable names (the first character is alphabetic, the remaining
++characters are alphanumeric): try {/\<[A-Za-z][A-Za-z0-9]*\>/^M}.
++
++In summary, here are the primitives for building regular expressions:
++
++ ^ at beginning of pattern, matches beginning of line
++ $ at end of pattern, matches end of line
++ . matches any single character
++ \< matches the beginning of a word
++ \> matches the end of a word
++ [str] matches any single character in str
++ [^str] matches any single character NOT in str
++ [x-y] matches any character in the ASCII range between x and y
++ * matches any number (including zero) of the preceding pattern
++
++Section 36: advanced substitution: {:s}
++
++The straightforward colon-substitute command looks like the substitute
++command of most line-oriented editors. Indeed, vi is nothing more than a
++superstructure on the line-oriented editor ex and the colon commands are
++simply a way of accessing commands within ex (see section #EX). This gives us
++a lot of global file processing not usually found in visual oriented editors.
++
++The colon-substitute command looks like: {:s/ .. / .. /^M} and will find the
++pattern specified after the first slash (this is called the search pattern),
++and replace it with the pattern specified after the second slash (called,
++obviously enough, the replacement pattern). E.g. position the cursor on line
++28 below and {:s/esample/example/^M}:
++
++Line 28: This is an esample.
++
++The {u} and {U} commands work for {:s}. The first pattern (the search pattern)
++may be a regular expression just as for the search command (after all, it IS a
++search, albeit limited to the current line). Do an {u} on the above line, and
++try the following substitute, which will do almost the same thing:
++{:s/s[^ ]/x/^M}.
++Better undo it with {u}. The first pattern {s[^ ]} matches an 's'
++NOT followed by a blank: the search therefore ignores the 's'es in 'This' and
++'is'. However, the character matched by {[^ ]} must appear in the replacement
++pattern. But, in general, we do not know what that character is! (In this
++particular example we obviously do, but more complicated examples will follow.)
++Therefore, vi (really ex) has a duplication mechanism to copy patterns matched
++in the search string into the replacement string. Line 29 below is a copy of
++line 28 above so you can adjust your screen.
++
++Line 29: This is an esample.
++
++In general, you can nest parts of the search pattern in \( .. \) and refer to
++it in the replacement pattern as \n, where n is a digit. The problem outlined
++in the previous paragraph is solved with {:s/s\([^ ]\)/x\1/^M}: try it. Here
++\1 refers to the first pattern grouping \( .. \) in the search string.
++
++Obviously, for a single line, this is rather tedious. Where it becomes
++powerful, if not necessary, is in colon-substitutes that cover a range of
++lines. (See the next section for a particularly comprehensive example.)
++
++If the entire character sequence matched by the search pattern is needed in
++the replacement pattern, then the unescaped character '&' can be used. On
++Line 29 above, try {:s/an e.ample/not &/^M}. If another line is to have the
++word 'not' prepended to a pattern, then '~' can save you from re-typing the
++replacement pattern. E.g. {:s/some pattern/~/^M} after the previous example
++would be equivalent to {:s/some pattern/not &/^M}.
++
++One other useful replacement pattern allows you to change the case of
++individual letters. The sequences {\u} and {\l} cause the immediately
++following character in the replacement to be converted to upper- or lower-case,
++respectively, if this character is a letter. The sequences {\U} and {\L} turn
++such conversion on, either until {\E} or {\e} is encountered, or until the end
++of the replacement pattern.
++
++For example, position the cursor on a line: pick a line, any line. Type
++{:s/.*/\U&/^M} and observe the result. You can undo it with {u}.
++
++The search pattern may actually match more than once on a single line.
++However, only the first pattern is substituted. If you would like ALL
++patterns matched on the line to be substituted, append a 'g' after the
++replacement pattern: {:s/123/456/g^M} will substitute EVERY occurrence
++on the line of 123 with 456.
++
++Section 37: advanced line addressing: {:p} {:g} {:v}
++
++Ex (available through the colon command in vi) offers several methods for
++specifying the lines on which a set of commands will act. For example, if you
++would like to see lines 50 through 100 of your file: {:50,100p^M} will display
++them, wait for you to [Hit return to continue], and leave you on line 100.
++Obviously, it would be easier just to do {100G} from within vi. But
++what if you would like to make changes to just those lines? Then the
++addressing is important and powerful.
++
++Line 30: This is a text.
++Line 31: Here is another text.
++Line 32: One more text line.
++
++The lines above contain a typing error that the author of this tutorial tends
++to make every time he attempts to type the word 'test'. To change all of these
++'text's into 'test's, try the following:
++{:/^Line 30/,/^Line 32/s/text/test/^M}. This finds the beginning and end of
++the portion of text to be changed, and limits the substitution to each of the
++lines in that range. The {u} command applies to ALL of the substitutions as
++a group.
++
++This provides a mechanism for powerful text manipulations.
++And very complicated examples.
++
++Line 33: This test is a.
++Line 34: Here test is another.
++Line 35: One line more test.
++
++The above three lines have the second word out of order. The following command
++string will put things right. Be very careful when typing this: it is very
++long, full of special characters, and easy to mess up. You may want to
++consider reading the following section to understand it before trying the
++experiment. Don't worry about messing up the rest of the file, though: the
++address range is specified.
++
++{:/^Line 33/,/^Line 35/s/\([^:]*\): \([^ ]*\) \([^ ]*\) \([^.]*\)/\1: \2 \4 \3/^M}
++
++There are several things to note about this command string. First of all, the
++range of the substitute was limited by the address specification {/^Line
++33/,/^Line 35/^M}. It might have been simpler to do {:set number^M} to see the
++line numbers directly, and then, in place of the two searches, typed
++the line numbers, e.g. {1396,1398}. Or to mark the lines with {ma} and {mb}
++and use {'a,'b}.
++
++Then follows the substitute pattern itself. To make it easier to understand
++what the substitute is doing, the command is duplicated below with the various
++patterns named for easier reference:
++
++ s/\([^:]*\): \([^ ]*\) \([^ ]*\) \([^.]*\)/\1: \2 \4 \3/
++ |--\1---| |--\2---| |--\3---| |--\4---|
++ |--------search pattern------------------|-replacement|
++ |--pattern---|
++
++In overview, the substitute looks for a particular pattern made up of
++sub-patterns, which are named \1, \2, \3, and \4. These patterns are specified
++by stating what they are NOT. Pattern \1 is the sequence of characters that
++are NOT colons: in the search string, {[^:]} will match exactly one character
++that is not a colon, while appending the asterisk {[^:]*} specifies that the
++'not a colon' pattern is to be repeated until no longer satisfied, and
++{\([^:]*\)} then gives the pattern its name, in this case \1. Outside of the
++specification of \1 comes {: }, specifying that the next two characters must be
++a colon followed by a blank.
++
++Patterns \2 and \3 are similar, specifying character sequences that are
++not blanks. Pattern \4 matches up to the period at the end of the line.
++
++The replacement pattern then consists of specifying the new order of the
++patterns.
++
++This is a particularly complicated example, perhaps the most complicated
++in this tutorial/reference. For our small examples, it is obviously
++tedious and error prone. For large files, however, it may be the most
++efficient way to make the desired modifications.
++
++(The reader is advised to look at the documentation for awk. This tool is very
++powerful and slightly simpler to use than vi for this kind of file
++manipulation. But, it is another command language to learn.)
++
++Many times, you will not want to operate on every line in a certain
++range. Rather you will want to make changes on lines that satisfy
++certain patterns; e.g. for every line that has the string 'NPS' on it,
++change 'NPS' to 'Naval Postgraduate School'. The {:g} addressing
++command was designed for this purpose. The example of this paragraph
++could be typed as {:g/NPS/s//Naval Postgraduate School/^M}.
++
++The general format of the command is {:g/(pattern)/cmds^M} and it
++works in the following way: all lines that match the pattern
++following the {:g} are 'tagged' in a special way. Then each of these
++lines have the commands following the pattern executed over them.
++
++Line 36: ABC rhino george farmer Dick jester lest
++Line 37: george farmer rhino lest jester ABC
++Line 38: rhino lest george Dick farmer ABC jester
++
++Type:
++
++{:g/^Line.*ABC/s/Dick/Harry Binswanger/|s/george farmer/gentleman george/p^M}
++
++There are several things of note here. First, lines 36, 37, and 38 above are
++tagged by the {:g}. Type {:g/^Line.*ABC/p^M} to verify this. Second, there
++are two substitutes on the same line separated by '|'. In general, any colon
++commands can be strung together with '|'. Third, both substitutes operate on
++all three lines, even though the first stubstitute works on only two of the
++lines (36 and 38). Fourth, the second substitute works on only two lines (36
++and 37) and those are the two lines printed by the trailing 'p'.
++
++The {:v} command works similarly to the {:g} command, except that the sense of
++the test for 'tagging' the lines is reversed: all lines NOT matching the search
++pattern are tagged and operated on by the commands.
++
++Using {^V} to quote carriage return (see section 39) can be used in global
++substitutions to split two lines. For example, the command
++{:g/\. /s//.^V^M/g^M} will change your file so that each sentence is on a
++separate line. (Note that we have to 'escape' the '.', because '.' by itself
++matches any character. Our command says to find any line which contains a
++period followed by 2 spaces, and inserts a carriage return after the period.)
++
++Caveat: In some of the documentation for ex and vi you may find the
++comment to the effect that {\^M} can be used between commands following
++{:g}. The author of this tutorial has never gotten this to work and has
++crashed the editor trying.
++
++Section 38: higher level text objects and nroff: {(} {)} [{] [}] {[[} {]]}
++
++(Note: this section may be a little confusing because of our command
++notation. Using curly braces to surround command strings works fine as
++long as the command string does not contain any curly braces itself.
++However, the curly braces are legitimate commands in vi. Therefore, for
++any command sequence that contains curly braces, we will surround that
++sequence with SQUARE braces, as on the previous Section line.)
++
++In working with a document, particularly if using the text formatting
++programs nroff or troff, it is often advantageous to work in terms of
++sentences, paragraphs, and sections. The operations {(} and {)} move to
++the beginning of the previous and next sentences, respectively. Thus
++the command {d)} will delete the rest of the current sentence; likewise
++{d(} will delete the previous sentence if you are at the beginning of
++the current sentence, or, if you are not at the beginning of a sentence,
++it will delete the current sentence from the beginning
++up to where you are.
++
++A sentence is defined to end at a '.', '!', or '?' which is followed
++by either the end of a line, or by two spaces. Any number of closing
++')', ']', '"', and ''' characters may appear after the '.', '!', or '?'
++before the spaces or end of line. Therefore, the {(} and {)} commands
++would recognize only one sentence in the following line, but two
++sentences on the second following line.
++
++Line 39: This is one sentence. Even though it looks like two.
++Line 40: This is two sentences. Because it has two spaces after the '.'.
++
++The operations [{] and [}] move over paragraphs and the operations {[[}
++and {]]} move over sections.
++
++A paragraph begins after each empty line, and also at each of a set of nroff
++paragraph macros. A section begins after each line with a form-feed ^L in the
++first column, and at each of a set of nroff section macros. When preparing a
++text file as input to nroff, you will probably be using a set of nroff macros
++to make the formatting specifications easier, or more to your taste. These
++macros are invoked by beginning a line with a period followed by the one or two
++letter macro name. Vi has been programmed to recognize these nroff macros, and
++if it doesn't recognize your particular macro you can use the {:set paragraphs}
++or {:set sections} commands so that it will.
++
++Section 39: more about inserting text
++
++There are a number of characters which you can use to make correnctions
++during input mode. These are summarized in the following table.
++
++ ^H deletes the last input character
++ ^W deletes the last input word
++ (erase) same as ^H; each terminal can define its own erase character;
++ for some it is ^H, for others it is the DELETE key, and for
++ others it is '@'.
++ (kill) deletes the input on this line; each terminal can define its
++ own line-kill character; for some it is ^U, for others it is
++ '@'; you will need to experiment on your terminal to find
++ out what your line-kill and erase characters are.
++ \ escapes a following ^H, (kill), and (erase) characters: i.e.
++ this is how to put these characters in your file.
++ ^[ escape key; ends insertion mode
++ ^? the delete key; interrupts an insertion, terminating it
++ abnormally.
++ ^M the return key; starts a new line.
++ ^D backtabs over the indentation set by the autoindent option
++ 0^D backtabs over all indentation back to the beginning of the line
++ ^^D (up-arrow followed by control-d)same as 0^D, except the indentation
++ will be restored at the beginning of the next line.
++ ^V quotes the next non-printing character into the file
++
++If you wish to type in your erase or kill character (say # or @ or ^U) then you
++must precede it with a \, just as you would do at the normal system command
++level. A more general way of typing non-printing characters into the file is
++to precede them with a ^V. The ^V echoes as a ^ character on which the cursor
++rests. This indicates that the editor expects you to type a control character
++and it will be inserted into the file at that point. There are a few
++exceptions to note. The implementation of the editor does not allow the null
++character ^@ to appear in files. Also the linefeed character ^J is used by the
++editor to separate lines in the file, so it cannot appear in the middle of a
++line. (Trying to insert a ^M into a file, or putting it in the replacement
++part of a substitution string will result in the matched line being split in
++two. This, in effect, is how to split lines by using a substitution.) You can
++insert any other character, however, if you wait for the editor to echo the ^
++before you type the character. In fact, the editor will treat a following
++letter as a request for the corresponding control character. This is the only
++way to type ^S or ^Q, since the system normally uses them to suspend and resume
++output and never gives them to the editor to process.
++
++If you are using the autoindent option you can backtab over the indent which it
++supplies by typing a ^D. This backs up to the boundary specified by the
++shiftwidth option. This only works immediately after the supplied autoindent.
++
++When you are using the autoindent option you may wish to place a label at the
++left margin of a line. The way to do this easily is to type ^ (up-arrow) and
++then ^D. The editor will move the cursor to the left margin for one line, and
++restore the previous indent on the next. You can also type a 0 followed
++immediately by a ^D if you wish to kill all indentation and not have it resume
++on the next line.
++
++Section 40: more on operators: {d} {c} {<} {>} {!} {=} {y}
++
++Below is a non-exhaustive list of commands that can follow the operators
++to affect the range over which the operators will work. However, note
++that the operators {<}, {>}, {!}, and {=} do not operate on any object
++less than a line. Try {!w} and you will get a beep. To get the
++operator to work on just the current line, double it. E.g. {<<}.
++
++ suffix will operate on
++ ------ ------------------------
++ ^[ cancels the command
++ w the word to the right of the cursor
++ W ditto, but ignoring punctuation
++ b the word to the left of the cursor
++ B ditto, but ignoring punctuation
++ e see below.
++ E ditto
++ (space) a character
++ $ to the end of the line
++ ^ to the beginning of the line
++ / .. / up to, but not including, the string
++ ? .. ? back to and including the string
++ fc up to and including the occurrence of c
++ Fc back to and including the occurrence of c
++ tc up to but not including the occurrence of c
++ Tc back to but not including the occurrence of c
++ ^M TWO lines (that's right: two)
++ (number)^M that many lines plus one
++ (number)G up to and including line (number)
++ ( the previous sentence if you are at the beginning of
++ the current sentence, or the current sentence up to where
++ you are if you are not at the beginning of the current
++ sentence. Here, 'sentence' refers to the intuitive
++ notion of an English sentence, ending with '!', '?',
++ or '.' and followed by an end of line or two spaces.
++ ) the rest of the current sentence
++ { analogous to '(', but in reference to paragraphs:
++ sections of text surrounded by blank lines
++ } analogous to ')', but in reference to paragraphs
++ [[ analogous to '(', but in reference to sections
++ ]] analogous to ')', but in reference to sections
++ H the first line on the screen
++ M the middle line on the screen
++ L the last line on the screen
++ 3L through the third line from the bottom of the screen
++ ^F forward a screenful
++ ^B backward a screenful
++ :
++ : etc. etc. etc.
++
++This list is not exhaustive, but it should be sufficient to get the idea
++across: after the operator, you can specify a range with a move-the-cursor
++command, and that is the region of text over which the operator will be
++effective.
++
++Section 41: abbreviations: {:ab}
++
++When typing large documents you may find yourself typing a large phrase
++over and over. Vi gives you the ability to specify an abbreviation for
++a long string such that typing the abbreviation will automatically
++expand into the longer phrase.
++
++Type {:ab nps Naval Postgraduate School^M}. Now type:
++
++{iThis is to show off the nps's UNIX editor.^M^[}
++
++Section 42: vi's relationship with the ex editor: {:}
++
++Vi is actually one mode of editing within the editor ex. When you are
++running vi you can escape to the line oriented editor of ex by giving
++the command {Q}. All of the colon-commands which were introduced above
++are available in ex. Likewise, most ex commands can be invoked from vi
++using {:}.
++
++In rare instances, an internal error may occur in vi. In this case you
++will get a diagnostic and will be left in the command mode of ex. You can
++then save your work and quit if you wish by giving the command {x} after
++the colon prompt of ex. Or you can reenter vi (if you are brave) by
++giving ex the command {vi}.
++
++Section 43: vi on hardcopy terminals and dumb terminals: open mode
++
++(The author has not checked the following documentation for accuracy. It is
++abstracted from the Introduction to Vi Editing document.)
++
++If you are on a hardcopy terminal or a terminal which does not have a cursor
++which can move off the bottom line, you can still use the command set of vi,
++but in a different mode. When you give the vi command to UNIX, the editor will
++tell you that it is using open mode. This name comes from the open command in
++ex, which is used to get into the same mode.
++
++The only difference between visual mode (normal vi) and open mode is the way in
++which the text is displayed.
++
++In open mode the editor uses a single line window into the file, and moving
++backward and forward in the file causes new lines to be displayed, always below
++the current line. Two commands of vi work differently in open: {z} and {^R}.
++The {z} command does not take parameters, but rather draws a window of context
++around the current line and then returns you to the current line.
++
++If you are on a hardcopy terminal, the {^R} command will retype the current
++line. On such terminals, the editor normally uses two lines to represent the
++current line. The first line is a copy of the line as you started to edit it,
++and you work on the line below this line. When you delete characters, the
++editor types a number of \'s to show you the characters which are deleted. The
++editor also reprints the current line soon after such changes so that you can
++see what the line looks like again.
++
++It is sometimes useful to use this mode on very slow terminals which can
++support vi in the full screen mode. You can do this by entering ex and using
++an {open} command.
++
++*********************************************************************
++Section 44: options: {:set} {setenv EXINIT}
++
++You will discover options as you need them. Do not worry about them very much
++on the first pass through this document. My advice is to glance through them,
++noting the ones that look interesting, ignoring the ones you don't understand,
++and try re-scanning them in a couple of weeks.
++
++If you decide that you have a favorite set of options and would like to change
++the default values for the editor, place a {setenv EXINIT} command in your
++.login file. When you are given an account under UNIX your directory has
++placed in it a file that is executed each time you log in. If one of the
++commands in this file sets the environment variable EXINIT to a string of vi
++commands, you can have many things done for you each time you invoke vi. For
++example, if you decide that you don't like tabstops placed every eight columns
++but prefer every four columns, and that you wish the editor to insert linefeeds
++for you when your typing gets you close to column 72, and you want
++autoindentation, then include the following line in your .login file:
++
++setenv EXINIT='set tabstop=4 wrapmargin=8 autoindent'
++
++or equivalently
++
++setenv EXINIT='se ts=4 wm=8 ai'
++
++Each time you bring up vi, this command will be executed and the options set.
++
++There are forty options in the vi/ex editor that the user can set for his/her
++own convenience. They are described in more detail in individual sections
++below. The section line will show the full spelling of the option name, the
++abbreviation, and the default value of the option. The text itself
++comes from the ex reference manual and is not the epitome of clarity.
++
++Section 44.1: {autoindent}, {ai} default: noai
++
++Can be used to ease the preparation of structured program text. At the
++beginning of each append, change or insert command or when a new line is opened
++or created by an append, change, insert, or substitute operation within open or
++visual mode, ex looks at the line being appended after, the first line changed
++or the line inserted before and calculates the amount of white space at the
++start of the line. It then aligns the cursor at the level of indentation so
++determined.
++
++If the user then types lines of text in, they will continue to be justified at
++the displayed indenting level. If more white space is typed at the beginning
++of a line, the following line will start aligned with the first non-white
++character of the previous line. To back the cursor up to the preceding tab
++stop one can hit {^D}. The tab stops going backwards are defined at multiples
++of the shiftwidth option. You cannot backspace over the indent, except by
++sending an end-of-file with a {^D}. A line with no characters added to it
++turns into a completely blank line (the white space provided for the autoindent
++is discarded). Also specially processed in this mode are lines beginning with
++an up-arrow `^' and immediately followed by a {^D}. This causes the input to
++be repositioned at the beginning of the line, but retaining the previous indent
++for the next line. Similarly, a `0' followed by a {^D} repositions at the
++beginning but without retaining the previous indent. Autoindent doesn't happen
++in global commands or when the input is not a terminal.
++
++Section 44.2: {autoprint}, {ap} default: ap
++
++Causes the current line to be printed after each delete, copy, join, move,
++substitute, t, undo or shift command. This has the same effect as supplying a
++trailing `p' to each such command. Autoprint is suppressed in globals, and
++only applies to the last of many commands on a line.
++
++Section 44.3: {autowrite}, {aw} default: noaw
++
++Causes the contents of the buffer to be written to the current file if you have
++modified it and give a next, rewind, stop, tag, or {!} command, or a control-
++up-arrow {^^} (switch files) or {^]} (tag goto) command in visual. Note, that
++the edit and ex commands do not autowrite. In each case, there is an
++equivalent way of switching when autowrite is set to avoid the autowrite
++({edit} for next, rewind! for rewind, stop! for stop, tag! for tag, shell
++for {!}, and {:e #} and a {:ta!} command from within visual).
++
++Section 44.4: {beautify}, {bf} default: nobeautify
++
++Causes all control characters except tab ^I, newline ^M and form-feed ^L to be
++discarded from the input. A complaint is registered the first time a backspace
++character is discarded. Beautify does not apply to command input.
++
++Section 44.5: {directory}, {dir} default: dir=/tmp
++
++Specifies the directory in which ex places its buffer file. If this directory
++in not writable, then the editor will exit abruptly when it fails to be able to
++create its buffer there.
++
++Section 44.6: {edcompatible} default: noedcompatible
++
++Causes the presence or absence of g and c suffixes on substitute commands to be
++remembered, and to be toggled by repeating the suffices. The suffix r makes
++the substitution be as in the {~} command, instead of like {&}.
++
++[Author's note: this should not concern users of vi.]
++
++Section 44.7: {errorbells}, {eb} default: noeb
++
++Error messages are preceded by a bell. However, bell ringing in open and
++visual modes on errors is not suppressed by setting noeb. If possible the
++editor always places the error message in a standout mode of the terminal (such
++as inverse video) instead of ringing the bell.
++
++Section 44.8: {hardtabs}, {ht} default: ht=8
++
++Gives the boundaries on which terminal hardware tabs are set (or on which the
++system expands tabs).
++
++Section 44.9: {ignorecase}, {ic} default: noic
++
++All upper case characters in the text are mapped to lower case in regular
++expression matching. In addition, all upper case characters in regular
++expressions are mapped to lower case except in character class specifications
++(that is, character in square brackets).
++
++Section 44.10: {lisp} default: nolisp
++
++Autoindent indents appropriately for lisp code, and the {(}, {)}, [{], [}],
++{[[}, and {]]} commands in open and visual modes are modified in a
++striaghtforward, intuitive fashion to have meaning for lisp.
++
++[Author's note: but don't ask me to define them precisely.]
++
++Section 44.11: {list} default: nolist
++
++All printed lines will be displayed (more) unambiguously, showing tabs as ^I
++and end-of-lines with `$'. This is the same as in the ex command {list}.
++
++Section 44.12: {magic} default: magic for {ex} and {vi}, nomagic for edit.
++
++If nomagic is set, the number of regular expression metacharacters is greatly
++reduced, with only up-arrow `^' and `$' having special effects. In addition
++the metacharacters `~' and `&' of the replacement pattern are treated as normal
++characters. All the normal metacharacters may be made magic when nomagic is
++set by preceding them with a `\'.
++
++[Author's note: In other words, if magic is set a back-slant turns the magic
++off for the following character, and if nomagic is set a back-slant turns the
++magic ON for the following character. And, no, we are not playing Dungeons and
++Dragons, although I think the writers of these option notes must have played it
++all the time.]
++
++Section 44.13: {mesg} default: mesg
++
++Causes write permission to be turned off to the terminal while you are in
++visual mode, if nomesg is set.
++
++[Author's note: I don't know if anyone could have made any one sentence
++paragraph more confusing than this one. What it says is: mesg allows people to
++write to you even if you are in visual or open mode; nomesg locks your terminal
++so they can't write to you and mess up your screen.]
++
++Section 44.14: {number, nu} default: nonumber
++
++Causes all output lines to be printed with their line numbers. In addition
++each input line will be prompted with its line number.
++
++Section 44.15: {open} default: open
++
++If {noopen}, the commands open and visual are not permitted. This is set for
++edit to prevent confusion resulting from accidental entry to open or visual
++mode.
++
++[Author's note: As you may have guessed by now, there are actually three
++editors available under Berkeley UNIX that are in reality the same
++program, ex, with different options set: ex itself, vi, and edit.]
++
++Section 44.16: {optimize, opt} default: optimize
++
++Throughput of text is expedited by setting the terminal to not do automatic
++carriage returns when printing more than one (logical) line of output, greatly
++speeding output on terminals without addressable cursors when text with leading
++white space is printed.
++
++[Author's note: I still don't know what this option does.]
++
++Section 44.17: {paragraphs, para} default: para=IPLPPPQPP LIbp
++
++Specifies the paragraphs for the [{] and [}] operations in open and visual.
++The pairs of characters in the option's value are the names of the nroff macros
++which start paragraphs.
++
++Section 44.18: {prompt} default: prompt
++
++Command mode input is prompted for with a `:'.
++
++[Author's note: Doesn't seem to have any effect on vi.]
++
++Section 44.19: {readonly}, {ro} default: noro, unless invoked with -R
++ or insufficient privileges on file
++
++This option allows you to guarantee that you won't clobber your file by
++accident. You can set the option and writes will fail unless you use an `!'
++after the write. Commands such as {x}, {ZZ}, the autowrite option, and in
++general anything that writes is affected. This option is turned on if you
++invoke the editor with the -R flag.
++
++Section 44.20: {redraw} default: noredraw
++
++The editor simulates (using great amounts of output), an intelligent terminal
++on a dumb terminal (e.g. during insertions in visual the characters to the
++right of the cursor position are refreshed as each input character is typed).
++Useful only at very high baud rates, and should be used only if the system is
++not heavily loaded: you will notice the performance degradation yourself.
++
++Section 44.21: {remap} default: remap
++
++If on, macros are repeatedly tried until they are unchanged. For example, if o
++is mapped to O, and O is mapped to I, then if remap is set, o will map to I,
++but if noremap is set, it will map to O .
++
++Section 44.22: {report} default: report=5 for ex and vi, 2 for edit
++
++Specifies a threshold for feedback from commands. Any command which modifies
++more than the specified number of lines will provide feedback as to the scope
++of its changes. For commands such as global, open, undo, and visual which have
++potentially more far reaching scope, the net change in the number of lines in
++the buffer is presented at the end of the command, subject to this same
++threshold. Thus notification is suppressed during a global command on the
++individual commands performed.
++
++Section 44.23: {scroll} default: scroll=1/2 window
++
++Determines the number of logical lines scrolled when a {^D} is received from a
++terminal in command mode, and determines the number of lines printed by a
++command mode z command (double the value of scroll).
++
++[Author's note: Doesn't seem to affect {^D} and {z} in visual (vi) mode.]
++
++Section 44.24: sections {sections} default: sections=SHNHH HU
++
++Specifies the section macros from nroff for the {[[} and {]]} operations in
++open and visual. The pairs of characters in the options's value are the names
++of the macros which start paragraphs.
++
++Section 44.25: {shell}, {sh} default: sh=/bin/sh
++
++Gives the path name of the shell forked for the shell escape command `!', and
++by the shell command. The default is taken from SHELL in the environment, if
++present.
++
++[Editor's note: I would suggest that you place the following line in
++your .login file:
++setenv SHELL '/bin/csh'
++]
++
++Section 44.26: {shiftwidth}, {sw} default: sw=8
++
++Used in reverse tabbing with {^D} when using autoindent to append text, and
++used by the shift commands. Should probably be the same value as the tabstop
++option.
++
++Section 44.27: {showmatch}, {sm} default: nosm
++
++In open and visual mode, when a `)' or `}' is typed, if the matching `(' or `{'
++is on the screen, move the cursor to it for one second. Extremely useful with
++complicated nested expressions, or with lisp.
++
++Section 44.28: {slowopen}, {slow} default: terminal dependent
++
++Affects the display algorithm used in visual mode, holding off display updating
++during input of new text to improve throughput when the terminal in use is both
++slow and unintelligent. See "An Introduction to Display Editing with Vi" for
++more details.
++
++Section 44.29: {tabstop}, {ts} default: ts=8
++
++The editor expands tabs ^I to tabstop boundaries in the display.
++
++Section 44.30: {taglength}, {tl} default: tl=0
++
++Tags are not significant beyond this many characters.
++A value of zero (the default) means that all characters are significant.
++
++Section 44.31: {tags} default: tags=tags /usr/lib/tags
++
++A path of files to be used as tag files for the tag command. A requested tag
++is searched for in the specified files, sequentially. By default files called
++tags are searched for in the current directory and in /usr/lib (a master file
++for the entire system).
++
++[Author's note: The author of this tutorial has never used this option, nor
++seen it used. I'm not even sure I know what they are talking about.]
++
++Section 44.32: {term} default: from environment variable TERM
++
++The terminal type of the output device.
++
++Section 44.33: {terse} default: noterse
++
++Shorter error diagnostics are produced for the experienced user.
++
++Section 44.34: {timeout} default: timeout
++
++Causes macros to time out after one second. Turn it off and they will
++wait forever. This is useful if you want multi-character macros, but if
++your terminal sends escape sequences for arrow keys, it will be
++necessary to hit escape twice to get a beep.
++
++[Editor's note: Another paragraph which requires a cryptographer.]
++
++Section 44.35: ttytype
++
++[Editor's note: I have found no documentation for this option at all.]
++
++Section 44.36: {warn} default: warn
++
++Warn if there has been `[No write since last change]' before a `!' command
++escape.
++
++Section 44.37: {window} default: window=speed dependent
++
++The number of lines in a text window in the visual command. The default is 8
++at slow speeds (600 baud or less), 16 at medium speed (1200 baud), and the full
++screen (minus one line) at higher speeds.
++
++Section 44.38: {wrapscan}, {ws} default: ws
++
++Searches using the regular expressions in addressing will wrap around past the
++end of the file.
++
++Section 44.39: {wrapmargin}, {wm} default: wm=0
++
++Defines a margin for automatic wrapover of text during input in open and visual
++modes. The numeric value is the number of columns from the right edge of the
++screen around which vi looks for a convenient place to insert a new-line
++character (wm=0 is OFF). This is very convenient for touch typists.
++Wrapmargin behaves much like fill/nojustify mode does in nroff.
++
++Section 44.40: {writeany}, {wa} default: nowa
++
++Inhibit the checks normally made before write commands, allowing a write to any
++file which the system protection mechanism will allow.
++
++Section 44.41: {w300}, {w1200}, {w9600} defaults: w300=8
++ w1200=16
++ w9600=full screen minus one
++
++These are not true options but set the default size of the window for when the
++speed is slow (300), medium (1200), or high (9600), respectively. They are
++suitable for an EXINIT and make it easy to change the 8/16/full screen rule.
++
++Section 45: Limitations
++
++Here are some editor limits that the user is likely to encounter:
++ 1024 characters per line
++ 256 characters per global command list
++ 128 characters per file name
++ 128 characters in the previous inserted and deleted text in open or
++ visual
++ 100 characters in a shell escape command
++ 63 characters in a string valued option
++ 30 characters in a tag name
++ 250000 lines in the file (this is silently enforced).
++
++The visual implementation limits the number of macros defined with map to 32,
++and the total number of characters in macros to be less than 512.
++
++[Editor's note: these limits may not apply to versions after 4.1BSD.]
+diff -Naur nvi-1.81.orig/nvi-1.79/docs/tutorial/vi.beginner nvi-1.81.6/nvi-1.79/docs/tutorial/vi.beginner
+--- nvi-1.81.6.orig/nvi-1.79/docs/tutorial/vi.beginner 1970-01-01 01:00:00.000000000 +0100
++++ nvi-1.81.6/nvi-1.79/docs/tutorial/vi.beginner 2008-06-22 20:35:35.000000000 +0200
+@@ -0,0 +1,741 @@
++Section 1: {^F} {ZZ}
++
++To get out of this tutorial, type: ZZ (two capital Z's).
++
++Learning a new computer system implies learning a new text editor. These
++tutorial lessons were created by Dain Samples to help you come to grips with
++UC Berkeley's screen oriented editor called vi (for VIsual). This tutorial
++uses the vi editor itself as the means of presentation.
++
++For best use of this tutorial, read all of a screen before performing any of
++the indicated actions. This tutorial (or, at least, the first half of it) has
++been designed to systematically present the vi commands IF THE INSTRUCTIONS
++ARE FOLLOWED! If you are too adventuresome, you may find yourself lost. If
++you ever find yourself stuck, remember the first line of this section.
++
++OK, now find the control key on your keyboard; it usually has CTL or CTRL
++written on its upper surface. Your first assignment is to hold the control
++key down while you press the 'F' key on your keyboard. Please do so now.
++
++
++
++Section 2: {^F} {^B}
++Many of vi's commands use the control key and some other key in combination,
++as with the control and the 'F' key above. This is abbreviated CTL-F, or ^F.
++
++As you have probably guessed by now, ^F (CTL-F) moves you forward a fixed
++number of lines in the file. Throughout the remainder of the tutorial when
++you are ready to advance to the next section of text, hit ^F.
++
++The opposite command is ^B. Just for fun, you might want to try a ^B to see
++the previous section again. Be sure to do a ^F to return you here.
++
++Determine what the cursor looks like on your screen. Whatever it is (a box,
++an underscore, blinking, flashing, inverse, etc.) it should now be positioned
++in the upper left-hand corner of your screen under or on the S of Section.
++Become familiar with your cursor: to use vi correctly it is important to
++always know where the cursor is.
++
++Did you notice that when you do a ^F the cursor is left at the top of the
++screen, and a ^B leaves the cursor near the bottom of the screen? Try the two
++commands ^B^F again. And now do another ^F to see the next section.
++
++Section 3: {^F} {^B}
++You now have two basic commands for examining a file, both forwards (^F) and
++backwards (^B).
++
++Note that these are vi text editing commands: they are not commands for the
++tutorial. Indeed, this tutorial is nothing but a text file which you are now
++editing. Everything you do and learn in this tutorial will be applicable to
++editing text files.
++
++Therefore, when you are editing a file and are ready to see more of the text,
++entering ^F will get you to the next section of the file. Entering ^B will
++show you the previous section.
++
++Time for you to do another ^F.
++
++
++
++
++
++
++
++Section 4: {^F} {^B} {^M} (return key)
++We will adopt the notation of putting commands in curly braces so we can write
++them unambiguously. For example, if you are to type the command sequence
++"control B control F" (as we asked you to do above) it would appear as {^B^F}.
++This allows clear delineation of the command strings from the text. Remember
++that the curly braces are NOT part of the command string you are to type. Do
++NOT type the curly braces.
++
++Sometimes, the command string in the curly braces will be rather long, and may
++be such that the first couple of characters of the command will erase from
++the screen the string you are trying to read and type. It is suggested that
++you write down the longer commands BEFORE you type them so you won't forget
++them once they disappear.
++
++Now locate the return key on your keyboard: it is usually marked 'RETURN',
++indicate hitting the return key. In fact, the control-M key sequence is
++exactly the same as if you hit the return key, and vice versa.
++
++Now type {^F}.
++
++
++Section 5: {:q!} {ZZ} {^M} (return key)
++Recognize that this tutorial is nothing more than a text file that you
++are editing. This means that if you do something wrong, it is possible
++for you to destroy the information in this file. Don't worry. If this
++happens, type {ZZ} (two capital Z's) or {:q!^M} to leave the tutorial.
++Restart the tutorial. Once in the tutorial, you can then page forward
++with {^F} until you are back to where you want to be. (There are
++easier ways to do this, some of which will be discussed later, but this
++is the most straightforward.)
++
++You may want to write these commands down in a convenient place for quick
++reference: {:q!^M} and {ZZ}
++
++We will assume that you now know to do a {^F} to advance the file
++
++
++
++
++
++
++
++Section 6: {m} {G} {'} {z}
++Now that you know how to get around in the file via ^F and ^B let's look at
++other ways of examining a text file. Sometimes it is necessary, in the midst
++of editing a file, to examine another part of the file. You are then faced
++with the problem of remembering your place in the file, looking at the other
++text, and then getting back to your original location. Vi has a 'mark'
++command, m. Type {mp}. You have just 'marked' your current location in the
++file and given it the name 'p'. The command string below will do three
++things: position you at the beginning of the file (line 1), then return you to
++the location 'p' that you just marked with the 'm' command, and, since the
++screen will not look exactly the same as it does right now, the 'z' command
++will reposition the screen. (You may want to write the string down before
++typing it: once you type {1G} it will no longer be on the screen.)
++
++So now type {1G'pz^M} - a one followed by a capital G, followed by the quote
++mark, followed by a lower case 'p', then a lower case 'z', then a return
++(which is the same as a ^M). The {1G} moves you to line 1, i.e. the beginning
++of the file. The {'p} moves you to the location you marked with {mp}. The
++{z^M} command will repaint the screen putting the cursor at the top of the
++screen. (Now {^F}.)
++
++Section 7: {m} {G} {'} {z}
++Let's look at some variations on those commands. If you wanted to look at
++line 22 in the file and return to this location you could type {mp22G'p}. Do
++so now, observing that {22G} puts your cursor at the beginning of section 2 in
++the middle of the screen.
++
++Also note that, without the {z^M} command, the line with 'Section 7' on it is
++now in the MIDDLE of the screen, and not at the top. Our cursor is on the
++correct line (where we did the {mp} command) but the line is not where we
++might like it to be on the screen. That is the function of the {z^M} command.
++(Remember, ^M is the same as the 'return' key on your keyboard.) Type {z^M}
++now and observe the effect.
++
++As you can see, the 'Section 7' line is now at the top of the screen with the
++cursor happily under the capital S. If you would like the cursor line (i.e.
++the line which the cursor is on) in the middle of the screen again, you would
++type {z.}. If you wanted the cursor line to be at the BOTTOM of the screen,
++type {z-}. Try typing {z-z.z^M} and watch what happens.
++
++{^F}
++
++Section 8: {z} {m} {'}
++
++Note that the z command does not change the position of our cursor in the file
++itself, it simply moves the cursor around on the screen by moving the contents
++of the file around on the screen. The cursor stays on the same line of the
++file when using the z command.
++
++This brings up an important point. There are two questions that the users of
++vi continually need to know the answer to: "Where am I in the file?" and
++"Where am I on the screen?" The cursor on your terminal shows the answer to
++both questions. Some commands will move you around in the file, usually
++changing the location of the cursor on the screen as well. Other commands
++move the cursor around on the screen without changing your location in the
++file.
++
++Now type {ma}. Your location in the file has been given the name 'a'. If you
++type {'p'a} you will see the previous location we marked in section 7, and
++then will be returned to the current location. (You will want to do a {z^M}
++to repaint the screen afterwards.) Try it.
++{^F}
++
++Section 9: {m} {''}
++Now we can move about in our file pretty freely. By using the {m} command we
++can give the current cursor position a lower-case-character name, like 'p',
++'a', 'e', 'm', or 'b'. Using the {G} command preceded by a line number we can
++look at any line in the file we like. Using the single quote command {'}
++followed by a character used in an {m} command, we can return to any location
++in the file we have marked.
++
++However, try {m3}, or {mM}. You should hear a beep, or bell. Only lower-case
++letters are acceptable to the {m} and {'} commands: numbers, upper-case
++letters, and special characters are not acceptable.
++
++If you type the {'} command with a character that is lower-case alphabetic but
++that has not been used in an {m} command, or for which the 'marked' text has
++been deleted, you will also get a beep. Try {'i}. You should get a beep
++because the command {mi} has never been issued. (Unless you've been
++experimenting.)
++
++The command {''} attempts to return you to the location at which you last
++modified some part of your file. However, my experience has been that it is
++difficult to predict exactly where you will end up.
++Section 10: {^M} {-}
++Now do {ma}, marking your position at the top of the screen. Now hit {^M} (or
++return) until the cursor is right ...
++* <- here, over/under the asterisk. Now
++type {mb'a'b} and watch the cursor move from the asterisk to the top of the
++screen and back again.
++
++The {^M} command moves the cursor to the beginning of the next line. Now type
++{^M} until the cursor is right ...
++* <- here. The command to move the cursor to the beginning of the
++previous line is {-}. Practice moving the cursor around on the screen by using
++{^M} and {-}. BE CAREFUL to not move the cursor OFF the screen just yet. If
++you do, type {'az^M}.
++
++Now we can move to any line within the screen. Practice moving around in the
++file using the {^F}, {^B}, {-}, {^M}, {z}, and {'} commands. When you are
++fairly confident that you can get to where you need to be in the file, and
++position the cursor on the screen where you want it type {'az^M^F} (which, of
++course, moves you back to the beginning of this section, repositions the
++cursor at the top of the screen, and advances you to the next section).
++
++Section 11: scrolling: {^M}
++The cursor should now be on the S of 'Section 11', and this should be on the
++first line of the screen. If it is not, do {^M} or {-} as appropriate to put
++the cursor on the section line, and type {z^M}.
++
++Type {mc} to mark your place.
++
++Now type {^M} until the cursor is on the last line of this screen. Now do one
++more {^M} and observe the result. This is called scrolling. When you
++attempted to move to a line not displayed on the screen, the line at the top of
++the screen was 'scrolled off', and a line at the bottom of the screen was
++'scrolled on'. The top line with 'Section 11' should no longer be visible.
++
++Now type {'cz^M} to reset the screen and type {^F} for the next section.
++
++
++
++
++
++
++
++Section 12: {-} {z}
++
++The {-} command moves the cursor to the previous line in the file. Now type
++{-}, which attempts to move the cursor to the previous line in this file.
++However, that line is not on the screen. The resulting action will depend on
++your terminal. (Do a {^Mz^M} to reposition the file). On intelligent
++terminals (e.g. VT100s, Z19s, Concept 100s), a top line is 'scrolled on' and
++the bottom line is 'scrolled off'. Other terminals, however, may not have
++this 'reverse scrolling' feature. They will simply repaint the screen with
++the cursor line in the middle of the screen. On such terminals it is
++necessary to type {z^M} to get the cursor line back to the top of the screen.
++
++
++
++
++
++
++
++
++
++
++Section 13:
++Up until this point, the tutorial has always tried to make sure that the first
++line of each screen has on it the section number and a list of the commands
++covered in that section. This will no longer be strictly maintained. If you
++want the section line at the top of the screen, you now know enough commands to
++do it easily: do {^M} or {-} until the cursor is on the section line and
++then {z^M}. Also, from this point on, it may not be the case that a {^F} will
++put you at the beginning of the next section. Therefore, be aware of where you
++are in the file as we look at other commands. You may have to find your way
++back to a particular section without any help from the tutorial. If you do not
++feel comfortable with this, then it is suggested that you practice moving from
++section 1 to section 13, back and forth, using {^M}, {-}, {^F}, and {^B}
++commands for a while.
++
++Also make liberal use of the mark command {m}: if, for example, you make a
++habit of using {mz} to mark your current location in the file, then you will
++always be able to return to that location with {'z} if the editor does
++something strange and you have no idea where you are or what happened.
++
++And finally, the proscription against experimentation is hereby lifted: play
++with the editor. Feel free to try out variations on the commands and move
++around in the file. By this time you should be able to recover from any gross
++errors.
++
++Section 14: {^E} {^Y} {^D} {^U}
++Let us now look at a few other commands for moving around in the file, and
++moving the file around on the screen. Note that the commands we have already
++looked at are sufficient: you really don't need any more commands for looking
++in a file. The following commands are not absolutely necessary. However,
++they can make editing more convenient, and you should take note of their
++existence. But it would be perfectly valid to decide to ignore them on this
++first pass: you can learn them later when you see a need for them, if you ever
++do.
++
++First, let's clear up some potentially confusing language. In at least one
++place in the official document ('An Introduction to Display Editing with Vi'
++by William Joy, and Mark Horton, September 1980), the expression "to scroll
++down text" means that the cursor is moved down in your file. However, note
++that this may result in the text on the screen moving UP. This use of the
++word 'scroll' refers to the action of the cursor within the file. However,
++another legitimate use of the word refers to the action of the text on the
++screen. That is, if the lines on your screen move up toward the top of the
++screen, this would be 'scrolling the screen up'. If the lines move down
++toward the bottom of the screen, this would be refered to as scrolling down.
++
++I have tried to maintain the following jargon: 'scrolling' refers to what the
++text does on the screen, not to what the cursor does within the file. For the
++latter I will refer to the cursor 'moving', or to 'moving the cursor'. I
++realize that this is not necessarily consistent with Joy and Horton, but they
++were wrong.
++
++{^E} scrolls the whole screen up one line, keeping the cursor on the same line,
++if possible. However, if the cursor line is the first line on the screen, then
++the cursor is moved to the next line in the file. Try typing {^E}.
++
++{^Y} scrolls the screen down one line, keeping the cursor on the same line, if
++possible. However, if the cursor line is the last line on the screen, then the
++cursor is moved to the previous line in the file. Try it.
++
++{^D} moves the cursor down into the file, scrolling the screen up.
++
++{^U} moves the cursor up into the file, also scrolling the screen if the
++terminal you are on has the reverse scroll capability. Otherwise the
++screen is repainted.
++
++Note that {^E} and {^Y} move the cursor on the screen while trying to keep the
++cursor at the same place in the file (if possible: however, the cursor can
++never move off screen), while {^D} and {^U} keep the cursor at the same place
++on the screen while moving the cursor within the file.
++
++Section 15: {/ .. /^M}
++
++Another way to position yourself in the file is by giving the editor a string
++to search for. Type the following: {/Here 1/^M} and the cursor should end up
++right ...........................here ^. Now type {/Section 15:/^M} and the
++cursor will end up over/on .....................here ^. Now type {//^M} and
++observe that the cursor is now over the capital S five lines above this line.
++Typing {//^M} several more times will bounce the cursor back and forth between
++the two occurrences of the string. In other words, when you type a string
++between the two slashes, it is searched for. Typing the slashes with nothing
++between them acts as if you had typed the previous string again.
++
++Observe that the string you type between the two slashes is entered on the
++bottom line of the screen. Now type {/Search for x /^M} except replace the 'x'
++in the string with some other character, say 'b'. The message "Pattern not
++found" should appear on the bottom of the screen. If you hadn't replaced the
++'x', then you would have found the string. Try it.
++
++Section 16: {? .. ?^M} {n} (search strings: ^ $)
++
++When you surround the sought-for string with slashes as in {/Search/}, the
++file is searched beginning from your current position in the file. If the
++string is not found by the end of the file, searching is restarted at the
++beginning of the file. However, if you do want the search to find the
++PREVIOUS rather than the NEXT occurrence of the string, surround the string
++with question marks instead of slash marks.
++
++Below are several occurrences of the same string.
++Here 2 Here 2 Here 2
++ Here 2 Here 2.
++Observe the effect of the following search commands (try them in the
++sequence shown):
++{/Here 2/^M} {//^M} {??^M}
++{/^Here 2/^M} {//^M} {??^M}
++{/Here 2$/^M} {//^M} {??^M}
++
++The first command looks for the next occurrence of the string 'Here 2'.
++However the second line of commands looks for an occurrence of 'Here 2' that
++is at the beginning of the line. When the up-arrow is the first character of
++a search string it stands for the beginning of the line. When the dollar-sign
++is the last character of the search string it stands for the end of the line.
++Therefore, the third line of commands searches for the string only when it is
++at the end of the line. Since there is only one place the string begins a
++line, and only one place the string ends the line, subsequent {//^M} and
++{??^M} will find those same strings over and over.
++
++The {n} command will find the next occurrence of the / or ? search
++string. Try {/Here 2/^M} followed by several {n} and observe the
++effect. Then try {??^M} followed by several {n}. The {n} command
++remembers the direction of the last search. It is just a way to save a
++few keystrokes.
++
++Section 17: \ and magic-characters in search strings
++
++Now type {/Here 3$/^M}. You might expect the cursor to end up
++right......^ here. However, you will get "Pattern not found" at the bottom of
++the screen. Remember that the dollar-sign stands for the end of the line.
++Somehow, you must tell vi that you do not want the end of the line, but a
++dollar-sign. In other words, you must take away the special meaning that the
++dollar-sign has for the search mechanism. You do this (for any special
++character, including the up-arrow ^) by putting a back-slash ('\', not '/') in
++front of the character.
++
++Now try {/Here 3\$/^M} and you should end up nine lines above this one. Try
++{//^M} and note that it returns you to the same place, and not to the first
++line of this paragraph: the back-slash character is not part of the search
++string and will not be found. To find the string in the first line of this
++paragraph, type {/Here 3\\\$/^M}. There are three back-slashes: the first takes
++away the special meaning from the second, and the third takes away the special
++meaning from the dollar-sign.
++
++Following is a list of the characters that have special meanings in search
++strings. If you wish to find a string containing one of these characters, you
++will have to be precede the character with a backslash. These characters are
++called magic characters because of the fun and games you can have with them
++and they can have with you, if you aren't aware of what they do.
++
++ ^ - (up-arrow) beginning of a line
++ $ - (dollar-sign) end of a line
++ . - (period) matches any character
++ \ - (backslant) the escape character itself
++ [ - (square bracket) for finding patterns (see section #SEARCH)
++ ] - (square bracket) ditto
++ * - (asterisk) ditto
++
++Without trying to explain it here, note that {:set nomagic^M} turns off the
++special meanings of all but the ^ up-arrow, $ dollar-sign, and backslash
++characters.
++
++Section 18: {: (colon commands)} {ZZ}
++
++In this section we will discuss getting into and out of the editor in more
++detail. If you are editing a file and wish to save the results the command
++sequence {:w^M} writes the current contents of the file out to disk, using the
++file name you used when you invoked the editor. That is, if you are at the
++command level in Unix, and you invoke vi with {vi foo} where foo is the name
++of the file you wish to edit, then foo is the name of the file used by the
++{:w^M} command.
++
++If you are done, the write and quit commands can be combined into a single
++command {:wq^M}. An even simpler way is the command {ZZ} (two capital Z's).
++
++If, for some reason, you wish to exit without saving any changes you have made,
++{:q!^M} does the trick. If you have not made any changes, the exclamation
++point is not necessary: {:q^M}. Vi is pretty good about not letting you
++get out without warning you that you haven't saved your file.
++
++We have mentioned before that you are currently in the vi editor, editing a
++file. If you wish to start the tutorial over from the very beginning, you
++could {ZZ}, and then type {vi.tut beginner} in response to the Unix prompt.
++This will create a fresh copy of this file for you, which might be necessary
++if you accidentally destroyed the copy you were working with. Just do a
++search for the last section you were in: e.g. {/Section 18:/^Mz^M}.
++
++Section 19: {H} {M} {L}
++
++Here are a few more commands that will move you around on the screen. Again,
++they are not absolutely necessary, but they can make screen positioning easier:
++
++{H} - puts the cursor at the top of the screen (the 'home' position)
++
++{M} - puts the cursor in the middle of the screen
++
++{L} - puts the cursor at the bottom of the screen.
++
++Try typing {HML} and watch the cursor.
++
++Try typing {5HM5L} and note that 5H puts you five lines from the top of the
++screen, and 5L puts you five lines from the bottom of the screen.
++
++Section 20: {w} {b} {0} {W} {B} {e} {E} {'} {`}
++
++Up to this point we have concentrated on positioning in the file, and
++positioning on the screen. Now let's look at positioning in a line. Put the
++cursor at the beginning of the following line and type {z^M}:
++
++This is a test line: your cursor should initially be at its beginning.
++
++The test line should now be at the top of your screen. Type {w} several times.
++Note that it moves you forward to the beginning of the next word. Now type
++{b} (back to the beginning of the word) several times till you are at the
++beginning of the line. (If you accidentally type too many {b}, type {w} until
++you are on the beginning of the line again.) Type {wwwww} (five w's) and note
++that the cursor is now on the colon in the sentence. The lower-case w command
++moves you forward one word, paying attention to certain characters such as
++colon and period as delimiters and counting them as words themselves. Now
++type {0} (zero, not o 'oh'): this moves you to the beginning of the current
++line. Now type {5w} and notice that this has the effect of repeating {w} five
++times and that you are now back on the colon. Type {0} (zero) again. To
++ignore the delimiters and to move to the beginning of the next word using only
++blanks, tabs and carriage-returns (these are called white-space characters) to
++delimit the words, use the {W} command: upper-case W. {B} takes you back a
++word using white-space characters as word delimiters.
++
++Note that the commands {wbWB} do not stop at the beginning or end of a line:
++they will continue to the next word on the next line in the direction specified
++(a blank line counts as a word).
++
++If you are interested in the END of the word, and not the BEGINNING, then use
++the {e} and {E} commands. These commands only move forward and there are no
++corresponding 'reverse search' commands for the end of a word.
++
++Also, we have been using the {'} command to move the cursor to a position that
++we have previously marked with the {m} command. However, position the cursor
++in the middle of a line (any line, just pick one) and type {mk}, marking that
++position with the letter k. Now type a few returns {^M} and type {'k}.
++Observe that the cursor is now at the beginning of the line that you marked.
++Now try {`k}: note that this is the reverse apostrophe, or back-quote, or grave
++accent, or whatever you want to call it. Also note that it moves you to the
++character that was marked, not just to the line that was marked.
++
++In addition, the {``} command works just like the {''} command except that you
++are taken to the exact character, not just to the line. (I'm still not
++sure which exact character, just as I'm still not sure which line.)
++
++Section 21: {l} {k} {j} {h}
++
++There are several commands to move around on the screen on a character by
++character basis:
++
++l - moves the cursor one character to the RIGHT
++k - moves the cursor UP one line
++j - moves the cursor DOWN one line
++h - moves the cursor one character to the LEFT
++
++Section 22: {i} {a} {I} {A} {o} {O} ^[ (escape key)
++
++For this and following sections you will need to use the ESCAPE key on your
++terminal. It is usually marked ESC. Since the escape key is the same as
++typing {^[} we will use ^[ for the escape key.
++
++Probably the most often used command in an editor is the insert command. Below
++are two lines of text, the first correct, the second incorrect. Position your
++cursor at the beginning of Line 1 and type {z^M}.
++
++Line 1: This is an example of the insert command.
++Line 2: This is an of the insert command.
++
++To make line 2 look like line 1, we are going to insert the characters
++'example ' before the word 'of'. So, now move the cursor so that it is
++positioned on the 'o' of 'of'. (You can do this by typing {^M} to move
++to the beginning of line 2, followed by {6w} or {wwwwww} to position the cursor
++on the word 'of'.)
++
++Now carefully type the following string and observe the effects:
++ {iexample ^[} (remember: ^[ is the escape key)}
++The {i} begins the insert mode, and 'example ' is inserted into the line:
++be sure to notice the blank in 'example '. The ^[ ends insertion mode,
++and the line is updated to include the new string. Line 1 should look exactly
++like Line 2.
++
++Move the cursor to the beginning of Line 3 below and type {z^M}:
++
++Line 3: These lines are examples for the 'a' command.
++Line 4: These line are examples for the '
++
++We will change line four to look like line three by using the append command.
++We need to append an 's' to the word 'line'. Position the cursor on the 'e'
++of 'line'. You can do this in several ways, one way is the following:
++First, type {/line /^M}. This puts us on the word 'line' in Line 4
++(the blank in the search string is important!). Next, type {e}. The 'e' puts
++us at the end of the word. Now, type {as^[ (^[ is the escape character)}.
++The 'a' puts us in insert mode, AFTER the current character. We appended the
++'s', and the escape ^[ ended the insert mode.
++
++The difference between {i} (insert) and {a} (append) is that {i} begins
++inserting text BEFORE the cursor, and {a} begins inserting AFTER the cursor.
++
++Now type {Aa' command.^[}. The cursor is moved to the end of the line and the
++string following {A} is inserted into the text. Line 4 should now look like
++line 3.
++
++Just as {A} moves you to the end of the line to begin inserting, {I} would
++begin inserting at the FRONT of the line.
++
++To begin the insertion of a line after the cursor line, type {o}. To insert a
++line before the cursor line, type {O}. In other words {o123^[} is equivalent
++to {A^M123^[}, and {O123^[} is equivalent to {I123^M^[}. The text after the
++{o} or {O} is ended with an escape ^[.
++
++This paragraph contains information that is terminal dependent: you will just
++have to experiment to discover what your terminal does. Once in the insert
++mode, if you make a mistake in the typing, ^H will delete the previous
++character up to the beginning of the current insertion. ^W will delete the
++previous word, and one of ^U, @, or ^X will delete the current line (up to the
++beginning of the current insertion). You will need to experiment with ^U, @,
++and ^X to determine which works for your terminal.
++
++Section 23: {f} {x} {X} {w} {l} {r} {R} {s} {S} {J}
++
++Position the cursor at the beginning of line 5 and {z^M}:
++
++Line 5: The line as it should be.
++Line 6: The line as it shouldn't be.
++
++To make Line 6 like Line 5, we have to delete the 'n', the apostrophe, and the
++'t'. There are several ways to position ourselves at the 'n'. Choose
++whichever one suits your fancy:
++
++{/n't/^M}
++{^M7w6l} or {^M7w6 } (note the space)
++{^M3fn} (finds the 3rd 'n' on the line)
++
++Now {xxx} will delete the three characters, as will {3x}.
++
++Note that {X} deletes the character just BEFORE the cursor, as opposed
++to the character AT the cursor.
++
++Position the cursor at line 7 and {z^M}:
++
++Line 7: The line as it would be.
++Line 8: The line as it could be.
++
++To change line 8 into line 7 we need to change the 'c' in 'could' into a 'w'.
++The 'r' (replace) command was designed for this. Typing {rc} is the same as
++typing {xic^[} (i.e. delete the 'bad' character and insert the correct
++new character). Therefore, assuming that you have positioned the cursor on the
++'c' of 'could', the easiest way to change 'could' into 'would' is {rw}.
++
++If you would like to now change the 'would' into 'should', use the substitute
++command, 's': {ssh^[}. The difference between 'r' and 's' is that 'r'
++(replace) replaces the current character with another character, while 's'
++(substitute) substitutes the current character with a string, ended with an
++escape.
++
++The capital letter version of replace {R} replaces each character by a
++character one at a time until you type an escape, ^[. The 'S' command
++substitutes the whole line.
++
++Position your cursor at the beginning of line 9 and {z^M}.
++
++Line 9: Love is a many splendored thing.
++Line 10: Love is a most splendored thing.
++
++To change line 10 into line 9, position the cursor at the beginning of 'most',
++and type {Rmany^[}.
++
++You may have noticed that, when inserting text, a new line is formed by typing
++{^M}. When changing, replacing, or substituting text you can make a new line
++by typing {^M}. However, neither {x} nor {X} will remove ^M to make two lines
++into one line. To do this, position the cursor on the first of the two lines
++you wish to make into a single line and type {J} (uppercase J for 'Join').
++
++Section 24: {u} {U}
++
++Finally, before we review, let's look at the undo command. Position
++your cursor on line 11 below and {z^M}.
++
++Line 11: The quick brown fox jumped over the lazy hound dog.
++Line 12: the qwick black dog dumped over the laxy poune fox.
++
++Type the following set of commands, and observe carefully the effect of each
++of the commands:
++
++{/^Line 12:/^M} {ft} {rT} {fw} {ru} {w} {Rbrown fox^[} {w} {rj}
++{fx} {rz} {w} {Rhound dog^[}
++
++Line 12 now matches line 11. Now type {U} - capital 'U'. And line 12 now
++looks like it did before you typed in the command strings. Now type:
++
++{ft} {rT} {fw} {ru} {^M} {^M}
++
++and then type {u}: the cursor jumps back to the line containing the second
++change you made and 'undoes' it. That is, {U} 'undoes' all the changes on the
++line, and {u} 'undoes' only the last change. Type {u} several times and
++observe what happens: {u} can undo a previous {u}!
++
++Caveat: {U} only works as long as the cursor is still on the line. Move the
++cursor off the line and {U} will have no effect, except to possibly beep at
++you. However, {u} will undo the last change, no matter where it occurred.
++
++Section 25: review
++
++At this point, you have all the commands you need in order to make use of vi.
++The remainder of this tutorial will discuss variations on these commands as
++well as introduce new commands that make the job of editing more efficient.
++Here is a brief review of the basic commands we have covered. They are listed
++in the order of increasing complexity and/or decreasing necessity (to say that
++a command is less necessary is not to say that it is less useful!). These
++commands allow you to comfortably edit any text file. There are other
++commands that will make life easier but will require extra time to learn,
++obviously. You may want to consider setting this tutorial aside for several
++weeks and returning to it later after gaining experience with vi and getting
++comfortable with it. The convenience of some of the more exotic commands may
++then be apparent and worth the extra investment of time and effort
++required to master them.
++
++to get into the editor from Unix: {vi filename}
++to exit the editor
++ saving all changes {ZZ} or {:wq^M}
++ throwing away all changes {:q!^M}
++ when no changes have been made {:q^M}
++save a file without exiting the editor {:w^M}
++write the file into another file {:w filename^M}
++insert text
++ before the cursor {i ...text... ^[}
++ at the beginning of the line {I ...text... ^[}
++ after the cursor (append) {a ...text... ^[}
++ at the end of the line {A ...text... ^[}
++ after the current line {o ...text... ^[}
++ before the current line {O ...text... ^[}
++delete the character ...
++ under the cursor {x}
++ to the left of the cursor {X}
++delete n characters {nx} or {nX} (for n a number)
++make two lines into one line (Join) {J}
++find a string in the file ...
++ searching forward {/ ...string... /^M}
++ searching backwards {? ...string... ?^M}
++repeat the last search command {n}
++repeat the last search command in the
++ opposite direction {N}
++find the character c on this line ...
++ searching forward {fc}
++ searching backward {Fc}
++repeat the last 'find character' command {;}
++replace a character with character x {rx}
++substitute a single character with text {s ...text... ^[}
++substitute n characters with text {ns ...text... ^[}
++replace characters one-by-one with text {R ...text... ^[}
++undo all changes to the current line {U}
++undo the last single change {u}
++move forward in the file a "screenful" {^F}
++move back in the file a "screenful" {^B}
++move forward in the file one line {^M} or {+}
++move backward in the file one line {-}
++move to the beginning of the line {0}
++move to the end of the line {$}
++move forward one word {w}
++move forward one word, ignoring punctuation {W}
++move forward to the end of the next word {e}
++to the end of the word, ignoring punctuation{E}
++move backward one word {b}
++move back one word, ignoring punctuation {B}
++return to the last line modified {''}
++scroll a line onto the top of the screen {^Y}
++scroll a line onto the bottom of the screen {^E}
++move "up" in the file a half-screen {^U}
++move "down" in the file a half-screen {^D}
++move the cursor to the top screen line {H}
++move the cursor to the bottom screen line {L}
++move the cursor to the middle line {M}
++move LEFT one character position {h} or {^H}
++move RIGHT one character position {l} or { }
++move UP in the same column {k} or {^P}
++move DOWN in the same column {j} or {^N}
++mark the current position, name it x {mx}
++move to the line marked/named x {'x}
++move to the character position named x {`x}
++move to the beginning of the file {1G}
++move to the end of the file {G}
++move to line 23 in the file {23G}
++repaint the screen with the cursor line
++ at the top of the screen {z^M}
++ in the middle of the screen {z.}
++ at the bottom of the screen {z-}
++
++More information on vi can be found in the file vi.advanced, which you can
++peruse at your leisure. From UNIX, type {vi.tut advanced^M}.
diff --git a/editors/nvi/patches/nvi-03-db4.patch b/editors/nvi/patches/nvi-03-db4.patch
new file mode 100644
index 0000000..dcf2feb
--- /dev/null
+++ b/editors/nvi/patches/nvi-03-db4.patch
@@ -0,0 +1,28 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 03db4.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: libdb4 compatibility adjustments.
+
+@DPATCH@
+--- nvi-1.81.6.orig/common/msg.c 2009-02-26 14:26:58.350336128 +0100
++++ nvi-1.81.6/common/msg.c 2009-02-26 14:29:05.235335829 +0100
+@@ -724,9 +724,18 @@
+ p = buf;
+ } else
+ p = file;
++ if (access(p, F_OK) != 0) {
++ if (first) {
++ first = 0;
++ return (1);
++ }
++ sp->db_error = ENOENT;
++ msgq_str(sp, M_DBERR, p, "%s");
++ return (1);
++ }
+ if ((sp->db_error = db_create(&db, 0, 0)) != 0 ||
+ (sp->db_error = db->set_re_source(db, p)) != 0 ||
+- (sp->db_error = db_open(db, NULL, DB_RECNO, 0, 0)) != 0) {
++ (sp->db_error = db_open(db, NULL, DB_RECNO, DB_CREATE, 0)) != 0) {
+ if (first) {
+ first = 0;
+ return (1);
diff --git a/editors/nvi/patches/nvi-04-confdefs.patch b/editors/nvi/patches/nvi-04-confdefs.patch
new file mode 100644
index 0000000..06b2aad
--- /dev/null
+++ b/editors/nvi/patches/nvi-04-confdefs.patch
@@ -0,0 +1,13 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 04confdefs.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Help configure by decreeing that some headers are present.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/build/confdefs.h nvi-1.81.6/build/confdefs.h
+--- nvi-1.81.6.orig/build/confdefs.h 1970-01-01 01:00:00.000000000 +0100
++++ nvi-1.81.6/build/confdefs.h 2008-05-01 18:05:00.000000000 +0200
+@@ -0,0 +1,3 @@
++
++#define HAVE_SYS_MMAN_H 1
++#define HAVE_SYS_SELECT_H 1
diff --git a/editors/nvi/patches/nvi-06-default_value_escapetime.patch b/editors/nvi/patches/nvi-06-default_value_escapetime.patch
new file mode 100644
index 0000000..1800c0c
--- /dev/null
+++ b/editors/nvi/patches/nvi-06-default_value_escapetime.patch
@@ -0,0 +1,18 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 06default_value_escapetime.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Increase the default 'escapetime' setting to accommodate slow lines.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/common/options.c nvi-1.81.6/common/options.c
+--- nvi-1.81.6.orig/common/options.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/common/options.c 2008-05-01 18:06:18.000000000 +0200
+@@ -356,7 +356,7 @@
+ (void)SPRINTF(b2, SIZE(b2),
+ L("directory=%s"), (s = getenv("TMPDIR")) == NULL ? _PATH_TMP : s);
+ OI(O_TMP_DIRECTORY, b2);
+- OI(O_ESCAPETIME, L("escapetime=1"));
++ OI(O_ESCAPETIME, L("escapetime=3"));
+ OI(O_KEYTIME, L("keytime=6"));
+ OI(O_MATCHTIME, L("matchtime=7"));
+ (void)SPRINTF(b2, SIZE(b2), L("msgcat=%s"), _PATH_MSGCAT);
diff --git a/editors/nvi/patches/nvi-07-flush_cache.patch b/editors/nvi/patches/nvi-07-flush_cache.patch
new file mode 100644
index 0000000..0f06dba
--- /dev/null
+++ b/editors/nvi/patches/nvi-07-flush_cache.patch
@@ -0,0 +1,49 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 07flush_cache.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/common/db1.c nvi-1.81.6/common/db1.c
+--- nvi-1.81.6.orig/common/db1.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/common/db1.c 2008-05-01 18:07:58.000000000 +0200
+@@ -262,8 +262,7 @@
+ }
+
+ /* Flush the cache, update line count, before screen update. */
+- if (lno <= ep->c_lno)
+- ep->c_lno = OOBLNO;
++ ep->c_lno = OOBLNO;
+ if (ep->c_nlines != OOBLNO)
+ --ep->c_nlines;
+
+@@ -314,8 +313,7 @@
+ }
+
+ /* Flush the cache, update line count, before screen update. */
+- if (lno < ep->c_lno)
+- ep->c_lno = OOBLNO;
++ ep->c_lno = OOBLNO;
+ if (ep->c_nlines != OOBLNO)
+ ++ep->c_nlines;
+
+@@ -386,8 +384,7 @@
+ }
+
+ /* Flush the cache, update line count, before screen update. */
+- if (lno >= ep->c_lno)
+- ep->c_lno = OOBLNO;
++ ep->c_lno = OOBLNO;
+ if (ep->c_nlines != OOBLNO)
+ ++ep->c_nlines;
+
+@@ -459,8 +456,7 @@
+ }
+
+ /* Flush the cache, before logging or screen update. */
+- if (lno == ep->c_lno)
+- ep->c_lno = OOBLNO;
++ ep->c_lno = OOBLNO;
+
+ /* File now dirty. */
+ if (F_ISSET(ep, F_FIRSTMODIFY))
diff --git a/editors/nvi/patches/nvi-08-lfs.patch b/editors/nvi/patches/nvi-08-lfs.patch
new file mode 100644
index 0000000..2ab85d9
--- /dev/null
+++ b/editors/nvi/patches/nvi-08-lfs.patch
@@ -0,0 +1,28 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 08lfs.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Insert a safety check to save large files from being overwritten.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/common/exf.c nvi-1.81.6/common/exf.c
+--- nvi-1.81.6.orig/common/exf.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/common/exf.c 2008-05-01 18:09:55.000000000 +0200
+@@ -157,6 +157,18 @@
+ */
+ if (file_spath(sp, frp, &sb, &exists))
+ return (1);
++ /*
++ * On LFS systems, it's possible that stat returned an error because
++ * the file is >2GB, which nvi would normally treat as "doesn't exist"
++ * and eventually overwrite. That's no good. Rather than mess with
++ * every stat() call in file_spath, we'll just check again here.
++ */
++ if (!exists && stat(frp->name, &sb)) {
++ if (errno == EOVERFLOW) {
++ msgq(sp, M_ERR, "File too large (>2GB, probably)");
++ goto err;
++ }
++ }
+
+ /*
+ * Check whether we already have this file opened in some
diff --git a/editors/nvi/patches/nvi-08-safe_printf.patch b/editors/nvi/patches/nvi-08-safe_printf.patch
new file mode 100644
index 0000000..0e1cf83
--- /dev/null
+++ b/editors/nvi/patches/nvi-08-safe_printf.patch
@@ -0,0 +1,18 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 08safe_printf.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/common/exf.c nvi-1.81.6/common/exf.c
+--- nvi-1.81.6.orig/common/exf.c 2008-05-01 18:10:20.000000000 +0200
++++ nvi-1.81.6/common/exf.c 2008-05-01 18:10:30.000000000 +0200
+@@ -1075,7 +1075,7 @@
+ *--s = '.';
+ }
+ }
+- msgq(sp, M_INFO, s);
++ msgq(sp, M_INFO, "%s", s);
+ if (nf)
+ FREE_SPACE(sp, p, 0);
+ return (0);
diff --git a/editors/nvi/patches/nvi-08-tempfile_umask.patch b/editors/nvi/patches/nvi-08-tempfile_umask.patch
new file mode 100644
index 0000000..6cebc90
--- /dev/null
+++ b/editors/nvi/patches/nvi-08-tempfile_umask.patch
@@ -0,0 +1,31 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 08tempfile_umask.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/common/exf.c nvi-1.81.6/common/exf.c
+--- nvi-1.81.6.orig/common/exf.c 2008-05-01 18:10:45.000000000 +0200
++++ nvi-1.81.6/common/exf.c 2008-05-01 18:13:23.000000000 +0200
+@@ -207,16 +207,21 @@
+ */
+ oname = frp->name;
+ if (LF_ISSET(FS_OPENERR) || oname == NULL || !exists) {
++ mode_t orig_umask;
+ if (opts_empty(sp, O_TMP_DIRECTORY, 0))
+ goto err;
++ orig_umask = umask(0);
++ umask(orig_umask & 0177);
+ (void)snprintf(tname, sizeof(tname),
+ "%s/vi.XXXXXX", O_STR(sp, O_TMP_DIRECTORY));
+ if ((fd = mkstemp(tname)) == -1) {
++ umask(orig_umask);
+ msgq(sp, M_SYSERR,
+ "237|Unable to create temporary file");
+ goto err;
+ }
+ (void)close(fd);
++ umask(orig_umask);
+
+ if (frp->name == NULL)
+ F_SET(frp, FR_TMPFILE);
diff --git a/editors/nvi/patches/nvi-09-casting.patch b/editors/nvi/patches/nvi-09-casting.patch
new file mode 100644
index 0000000..6e19ae7
--- /dev/null
+++ b/editors/nvi/patches/nvi-09-casting.patch
@@ -0,0 +1,27 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 09casting.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/vi/v_ch.c nvi-1.81.6/vi/v_ch.c
+--- nvi-1.81.6.orig/vi/v_ch.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/vi/v_ch.c 2008-05-01 18:14:03.000000000 +0200
+@@ -165,7 +165,7 @@
+ endp = (startp = p) + len;
+ p += vp->m_start.cno;
+ for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
+- while (++p < endp && *p != key);
++ while (++p < endp && *p != (char) key);
+ if (p == endp) {
+ notfound(sp, key);
+ return (1);
+@@ -247,7 +247,7 @@
+ endp = p - 1;
+ p += vp->m_start.cno;
+ for (cnt = F_ISSET(vp, VC_C1SET) ? vp->count : 1; cnt--;) {
+- while (--p > endp && *p != key);
++ while (--p > endp && *p != (char) key);
+ if (p == endp) {
+ notfound(sp, key);
+ return (1);
diff --git a/editors/nvi/patches/nvi-10-no_one_line_visual.patch b/editors/nvi/patches/nvi-10-no_one_line_visual.patch
new file mode 100644
index 0000000..1718091
--- /dev/null
+++ b/editors/nvi/patches/nvi-10-no_one_line_visual.patch
@@ -0,0 +1,24 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 10no_one_line_visual.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Catch segfaults when the screen is only one line high.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/vi/vi.c nvi-1.81.6/vi/vi.c
+--- nvi-1.81.6.orig/vi/vi.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/vi/vi.c 2008-05-01 18:15:14.000000000 +0200
+@@ -974,6 +974,14 @@
+ sp->rows = vip->srows = O_VAL(sp, O_LINES);
+ sp->cols = O_VAL(sp, O_COLUMNS);
+ sp->t_rows = sp->t_minrows = O_VAL(sp, O_WINDOW);
++ /*
++ * To avoid segfaults on terminals with only one line,
++ * catch this corner case now and die explicitly.
++ */
++ if (sp->t_rows == 0) {
++ (void)fprintf(stderr, "Error: Screen too small for visual mode.\n");
++ return 1;
++ }
+ if (sp->rows != 1) {
+ if (sp->t_rows > sp->rows - 1) {
+ sp->t_minrows = sp->t_rows = sp->rows - 1;
diff --git a/editors/nvi/patches/nvi-11-backward_sentence_moving.patch b/editors/nvi/patches/nvi-11-backward_sentence_moving.patch
new file mode 100644
index 0000000..9a89aec
--- /dev/null
+++ b/editors/nvi/patches/nvi-11-backward_sentence_moving.patch
@@ -0,0 +1,18 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 11backward_sentence_moving.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/vi/v_sentence.c nvi-1.81.6/vi/v_sentence.c
+--- nvi-1.81.6.orig/vi/v_sentence.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/vi/v_sentence.c 2008-05-01 18:15:37.000000000 +0200
+@@ -291,7 +291,7 @@
+ * we can end up where we started. Fix it.
+ */
+ if (vp->m_start.lno != cs.cs_lno ||
+- vp->m_start.cno != cs.cs_cno)
++ vp->m_start.cno > cs.cs_cno)
+ goto okret;
+
+ /*
diff --git a/editors/nvi/patches/nvi-12-horiz_scroll_count.patch b/editors/nvi/patches/nvi-12-horiz_scroll_count.patch
new file mode 100644
index 0000000..aece3e0
--- /dev/null
+++ b/editors/nvi/patches/nvi-12-horiz_scroll_count.patch
@@ -0,0 +1,18 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 12horiz_scroll_count.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/vi/vs_refresh.c nvi-1.81.6/vi/vs_refresh.c
+--- nvi-1.81.6.orig/vi/vs_refresh.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/vi/vs_refresh.c 2008-05-01 18:16:01.000000000 +0200
+@@ -569,7 +569,7 @@
+ * for the number option offset.
+ */
+ cnt = vs_columns(sp, NULL, LNO, &CNO, NULL);
+- if (O_ISSET(sp, O_NUMBER))
++ if (O_ISSET(sp, O_NUMBER) && cnt)
+ cnt -= O_NUMBER_LENGTH;
+
+ /* Adjust the window towards the beginning of the line. */
diff --git a/editors/nvi/patches/nvi-14-private_regex_fixes.patch b/editors/nvi/patches/nvi-14-private_regex_fixes.patch
new file mode 100644
index 0000000..8ed783d
--- /dev/null
+++ b/editors/nvi/patches/nvi-14-private_regex_fixes.patch
@@ -0,0 +1,31 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 14private_regex_fixes.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Fixes to the private regex library; includes fix for #523934.
+
+@DPATCH@
+diff -Naur regex.orig/regcomp.c regex/regcomp.c
+--- nvi-1.81.6.orig/regex/regcomp.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/regex/regcomp.c 2008-05-01 18:37:57.000000000 +0200
+@@ -606,7 +606,8 @@
+ REQUIRE(starordinary, REG_BADRPT);
+ /* FALLTHROUGH */
+ default:
+- ordinary(p, c &~ BACKSL);
++ /* ordinary(p, c &~ BACKSL); -- Fix potential overflow */
++ ordinary(p, c & 0xff);
+ break;
+ }
+
+diff -Naur regex.orig/regexec.c regex/regexec.c
+--- nvi-1.81.6.orig/regex/regexec.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/regex/regexec.c 2008-05-01 18:38:00.000000000 +0200
+@@ -63,7 +63,7 @@
+
+ /* macros for manipulating states, small version */
+ #define states int
+-#define states1 states /* for later use in regexec() decision */
++typedef states states1; /* for later use in regexec() decision */
+ #define CLEAR(v) ((v) = 0)
+ #define SET0(v, n) ((v) &= ~(1 << (n)))
+ #define SET1(v, n) ((v) |= 1 << (n))
diff --git a/editors/nvi/patches/nvi-15-search_word.patch b/editors/nvi/patches/nvi-15-search_word.patch
new file mode 100644
index 0000000..38c914b
--- /dev/null
+++ b/editors/nvi/patches/nvi-15-search_word.patch
@@ -0,0 +1,29 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 15search_word.dpatch by Al Viro <viro@ZenIV.linux.org.uk>
+##
+## DP: Fix {^A} command. (End-of-word was not included in search
+## DP: regexp leading to false positives.)
+
+@DPATCH@
+--- nvi-1.81.6.orig/vi/v_search.c 2007-11-18 11:41:42.000000000 -0500
++++ nvi-1.81.6/vi/v_search.c 2009-03-05 15:37:37.000000000 -0500
+@@ -322,16 +322,17 @@
+ v_searchw(SCR *sp, VICMD *vp)
+ {
+ size_t blen, len;
++ size_t olen = STRLEN(VIP(sp)->keyw);
+ int rval;
+ CHAR_T *bp, *p;
+
+- len = VIP(sp)->klen + RE_WSTART_LEN + RE_WSTOP_LEN;
++ len = olen + RE_WSTART_LEN + RE_WSTOP_LEN;
+ GET_SPACE_RETW(sp, bp, blen, len);
+ MEMCPY(bp, RE_WSTART, RE_WSTART_LEN);
+ p = bp + RE_WSTART_LEN;
+- MEMCPY(p, VIP(sp)->keyw, VIP(sp)->klen);
+- p += VIP(sp)->klen;
++ MEMCPY(p, VIP(sp)->keyw, olen);
++ p += olen;
+ MEMCPY(p, RE_WSTOP, RE_WSTOP_LEN);
+
+ rval = v_search(sp, vp, bp, len, SEARCH_SET, FORWARD);
diff --git a/editors/nvi/patches/nvi-16-manpage_errors.patch b/editors/nvi/patches/nvi-16-manpage_errors.patch
new file mode 100644
index 0000000..2c7be51
--- /dev/null
+++ b/editors/nvi/patches/nvi-16-manpage_errors.patch
@@ -0,0 +1,770 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 16manpage_errors.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Fix a truckload of roff markup glitches.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/docs/vi.man/vi.1 nvi-1.81.6/docs/vi.man/vi.1
+--- nvi-1.81.6.orig/docs/vi.man/vi.1 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/docs/vi.man/vi.1 2008-05-01 18:17:59.000000000 +0200
+@@ -17,35 +17,35 @@
+ .SH SYNOPSIS
+ .B ex
+ [\c
+-.B -eFRrSsv\c
++.B \-eFRrSsv\c
+ ] [\c
+-.BI -c " cmd"\c
++.BI \-c " cmd"\c
+ ] [\c
+-.BI -t " tag"\c
++.BI \-t " tag"\c
+ ] [\c
+-.BI -w " size"\c
++.BI \-w " size"\c
+ ] [file ...]
+ .br
+ .B vi
+ [\c
+-.B -eFlRrSv\c
++.B \-eFlRrSv\c
+ ] [\c
+-.BI -c " cmd"\c
++.BI \-c " cmd"\c
+ ] [\c
+-.BI -t " tag"\c
++.BI \-t " tag"\c
+ ] [\c
+-.BI -w " size"\c
++.BI \-w " size"\c
+ ] [file ...]
+ .br
+ .B view
+ [\c
+-.B -eFRrSv\c
++.B \-eFRrSv\c
+ ] [\c
+-.BI -c " cmd"\c
++.BI \-c " cmd"\c
+ ] [\c
+-.BI -t " tag"\c
++.BI \-t " tag"\c
+ ] [\c
+-.BI -w " size"\c
++.BI \-w " size"\c
+ ] [file ...]
+ .SH LICENSE
+ The vi program is freely redistributable. You are welcome to copy,
+@@ -57,7 +57,7 @@
+ .I \&Vi
+ is a screen oriented text editor.
+ .I \&Ex
+-is a line-oriented text editor.
++is a line\(hyoriented text editor.
+ .I \&Ex
+ and
+ .I \&vi
+@@ -66,7 +66,7 @@
+ .I View
+ is the equivalent of using the
+ .B \-R
+-(read-only) option of
++(read\(hyonly) option of
+ .IR \&vi .
+ .PP
+ This manual page is the one provided with the
+@@ -75,7 +75,7 @@
+ .I ex/vi
+ text editors.
+ .I Nex/nvi
+-are intended as bug-for-bug compatible replacements for the original
++are intended as bug\(hyfor\(hybug compatible replacements for the original
+ Fourth Berkeley Software Distribution (4BSD)
+ .I \&ex
+ and
+@@ -93,7 +93,7 @@
+ editor before this manual page.
+ If you're in an unfamiliar environment, and you absolutely have to
+ get work done immediately, read the section after the options
+-description, entitled ``Fast Startup''.
++description, entitled \(lqFast Startup\(rq.
+ It's probably enough to get you going.
+ .PP
+ The following options are available:
+@@ -105,7 +105,7 @@
+ Particularly useful for initial positioning in the file, however
+ .B cmd
+ is not limited to positioning commands.
+-This is the POSIX 1003.2 interface for the historic ``+cmd'' syntax.
++This is the POSIX 1003.2 interface for the historic \(lq+cmd\(rq syntax.
+ .I Nex/nvi
+ supports both the old and new syntax.
+ .TP
+@@ -122,7 +122,7 @@
+ Start editing with the lisp and showmatch options set.
+ .TP
+ .B \-R
+-Start editing in read-only mode, as if the command name was
++Start editing in read\(hyonly mode, as if the command name was
+ .IR view ,
+ or the
+ .B readonly
+@@ -151,7 +151,7 @@
+ Prompts, informative messages and other user oriented message
+ are turned off,
+ and no startup files or environmental variables are read.
+-This is the POSIX 1003.2 interface for the historic ``\-'' argument.
++This is the POSIX 1003.2 interface for the historic \(lq\-\(rq argument.
+ .I \&Nex/nvi
+ supports both the old and new syntax.
+ .TP
+@@ -215,8 +215,8 @@
+ There are commands that switch you into input mode.
+ There is only one key that takes you out of input mode,
+ and that is the <escape> key.
+-(Key names are written using less-than and greater-than signs, e.g.
+-<escape> means the ``escape'' key, usually labeled ``esc'' on your
++(Key names are written using less\(hythan and greater\(hythan signs, e.g.
++<escape> means the \(lqescape\(rq key, usually labeled \(lqesc\(rq on your
+ terminal's keyboard.)
+ If you're ever confused as to which mode you're in,
+ keep entering the <escape> key until
+@@ -227,9 +227,9 @@
+ will beep at you if you try and do something that's not allowed.
+ It will also display error messages.)
+ .PP
+-To start editing a file, enter the command ``vi file_name<carriage-return>''.
++To start editing a file, enter the command \(lqvi file_name<carriage\(hyreturn>\(rq.
+ The command you should enter as soon as you start editing is
+-``:set verbose showmode<carriage-return>''.
++\(lq:set verbose showmode<carriage\(hyreturn>\(rq.
+ This will make the editor give you verbose error messages and display
+ the current mode at the bottom of the screen.
+ .PP
+@@ -247,11 +247,11 @@
+ .B l
+ Move the cursor right one character.
+ .TP
+-.B <cursor-arrows>
++.B <cursor\(hyarrows>
+ The cursor arrow keys should work, too.
+ .TP
+-.B /text<carriage-return>
+-Search for the string ``text'' in the file,
++.B /text<carriage\(hyreturn>
++Search for the string \(lqtext\(rq in the file,
+ and move the cursor to its first character.
+ .PP
+ The commands to enter new text are:
+@@ -303,30 +303,30 @@
+ .PP
+ The commands to write the file are:
+ .TP
+-.B :w<carriage-return>
++.B :w<carriage\(hyreturn>
+ Write the file back to the file with the name that you originally used
+ as an argument on the
+ .I \&vi
+ command line.
+ .TP
+-.B ":w file_name<carriage-return>"
+-Write the file back to the file with the name ``file_name''.
++.B ":w file_name<carriage\(hyreturn>"
++Write the file back to the file with the name \(lqfile_name\(rq.
+ .PP
+ The commands to quit editing and exit the editor are:
+ .TP
+-.B :q<carriage-return>
++.B :q<carriage\(hyreturn>
+ Quit editing and leave vi (if you've modified the file, but not
+ saved your changes,
+ .I \&vi
+ will refuse to quit).
+ .TP
+-.B :q!<carriage-return>
++.B :q!<carriage\(hyreturn>
+ Quit, discarding any modifications that you may have made.
+ .PP
+ One final caution.
+ Unusual characters can take up more than one column on the screen,
+ and long lines can take up more than a single screen line.
+-The above commands work on ``physical'' characters and lines,
++The above commands work on \(lqphysical\(rq characters and lines,
+ i.e. they affect the entire line no matter how many screen lines it
+ takes up and the entire character no matter how many screen columns
+ it takes up.
+@@ -339,87 +339,87 @@
+ character.
+ .PP
+ .TP
+-.B "[count] <control-A>"
++.B "[count] <control\(hyA>"
+ Search forward
+ .I count
+ times for the current word.
+ .TP
+-.B "[count] <control-B>"
++.B "[count] <control\(hyB>"
+ Page backwards
+ .I count
+ screens.
+ .TP
+-.B "[count] <control-D>"
++.B "[count] <control\(hyD>"
+ Scroll forward
+ .I count
+ lines.
+ .TP
+-.B "[count] <control-E>"
++.B "[count] <control\(hyE>"
+ Scroll forward
+ .I count
+ lines, leaving the current line and column as is, if possible.
+ .TP
+-.B "[count] <control-F>"
++.B "[count] <control\(hyF>"
+ Page forward
+ .I count
+ screens.
+ .TP
+-.B "<control-G>"
++.B "<control\(hyG>"
+ Display the file information.
+ .TP
+-.B "<control-H>"
++.B "<control\(hyH>"
+ .TP
+ .B "[count] h"
+ Move the cursor back
+ .I count
+ characters in the current line.
+ .TP
+-.B "[count] <control-J>"
++.B "[count] <control\(hyJ>"
+ .TP
+-.B "[count] <control-N>"
++.B "[count] <control\(hyN>"
+ .TP
+ .B "[count] j"
+ Move the cursor down
+ .I count
+ lines without changing the current column.
+ .TP
+-.B "<control-L>"
++.B "<control\(hyL>"
+ .TP
+-.B "<control-R>"
++.B "<control\(hyR>"
+ Repaint the screen.
+ .TP
+-.B "[count] <control-M>"
++.B "[count] <control\(hyM>"
+ .TP
+ .B "[count] +"
+ Move the cursor down
+ .I count
+ lines to the first nonblank character of that line.
+ .TP
+-.B "[count] <control-P>"
++.B "[count] <control\(hyP>"
+ .TP
+ .B "[count] k"
+ Move the cursor up
+ .I count
+ lines, without changing the current column.
+ .TP
+-.B "<control-T>"
++.B "<control\(hyT>"
+ Return to the most recent tag context.
+ .TP
+-.B "<control-U>"
++.B "<control\(hyU>"
+ Scroll backwards
+ .I count
+ lines.
+ .TP
+-.B "<control-W>"
++.B "<control\(hyW>"
+ Switch to the next lower screen in the window, or, to the first
+ screen if there are no lower screens in the window.
+ .TP
+-.B "<control-Y>"
++.B "<control\(hyY>"
+ Scroll backwards
+ .I count
+ lines, leaving the current line and column as is, if possible.
+ .TP
+-.B "<control-Z>"
++.B "<control\(hyZ>"
+ Suspend the current editor session.
+ .TP
+ .B "<escape>"
+@@ -427,10 +427,10 @@
+ .I \&ex
+ commands or cancel partial commands.
+ .TP
+-.B "<control-]>"
++.B "<control\(hy]>"
+ Push a tag reference onto the tag stack.
+ .TP
+-.B "<control-^>"
++.B "<control\(hy^>"
+ Switch to the most recently edited file.
+ .TP
+ .B "[count] <space>"
+@@ -440,10 +440,10 @@
+ .I count
+ characters without changing the current line.
+ .TP
+-.B "[count] ! motion shell-argument(s)"
++.B "[count] ! motion shell\(hyargument(s)"
+ Replace text with results from a shell command.
+ .TP
+-.B "[count] # #|+|-"
++.B "[count] # #|+|\-"
+ Increment or decrement the cursor number.
+ .TP
+ .B "[count] $"
+@@ -457,7 +457,7 @@
+ .TP
+ .B "'<character>"
+ .TP
+-.B "`<character>"
++.B "\`<character>"
+ Return to a context marked by the character
+ .IR <character> .
+ .TP
+@@ -476,7 +476,7 @@
+ .I count
+ times.
+ .TP
+-.B "[count] -"
++.B "[count] \-"
+ Move to first nonblank of the previous line,
+ .I count
+ times.
+@@ -486,13 +486,13 @@
+ .I \&vi
+ command that modified text.
+ .TP
+-.B "/RE<carriage-return>"
++.B "/RE<carriage\(hyreturn>"
+ .TP
+-.B "/RE/ [offset]<carriage-return>"
++.B "/RE/ [offset]<carriage\(hyreturn>"
+ .TP
+-.B "?RE<carriage-return>"
++.B "?RE<carriage\(hyreturn>"
+ .TP
+-.B "?RE? [offset]<carriage-return>"
++.B "?RE? [offset]<carriage\(hyreturn>"
+ .TP
+ .B "N"
+ .TP
+@@ -527,15 +527,15 @@
+ bigwords.
+ .TP
+ .B "[buffer] [count] C"
+-Change text from the current position to the end-of-line.
++Change text from the current position to the end\(hyof\(hyline.
+ .TP
+ .B "[buffer] D"
+-Delete text from the current position to the end-of-line.
++Delete text from the current position to the end\(hyof\(hyline.
+ .TP
+ .B "[count] E"
+ Move forward
+ .I count
+-end-of-bigwords.
++end\(hyof\(hybigwords.
+ .TP
+ .B "[count] F <character>"
+ Search
+@@ -552,7 +552,7 @@
+ .TP
+ .B "[count] H"
+ Move to the screen line
+-.I "count - 1"
++.I "count \- 1"
+ lines below the top of the screen.
+ .TP
+ .B "[count] I"
+@@ -563,7 +563,7 @@
+ .TP
+ .B "[count] L"
+ Move to the screen line
+-.I "count - 1"
++.I "count \- 1"
+ lines above the bottom of the screen.
+ .TP
+ .B " M"
+@@ -614,7 +614,7 @@
+ characters before the cursor.
+ .TP
+ .B "[buffer] [count] Y"
+-Copy (or ``yank'')
++Copy (or \(lqyank\(rq)
+ .I count
+ lines into the specified buffer.
+ .TP
+@@ -637,7 +637,7 @@
+ .TP
+ .B "[count] _"
+ Move down
+-.I "count - 1"
++.I "count \- 1"
+ lines, to the first nonblank character.
+ .TP
+ .B "[count] a"
+@@ -657,7 +657,7 @@
+ .B "[count] e"
+ Move forward
+ .I count
+-end-of-words.
++end\(hyof\(hywords.
+ .TP
+ .B "[count] f<character>"
+ Search forward,
+@@ -709,12 +709,12 @@
+ characters.
+ .TP
+ .B "[buffer] [count] y motion"
+-Copy (or ``yank'')
++Copy (or \(lqyank\(rq)
+ a text region specified by the
+ .I count
+ and motion into a buffer.
+ .TP
+-.B "[count1] z [count2] -|.|+|^|<carriage-return>"
++.B "[count1] z [count2] \-|.|+|^|<carriage\(hyreturn>"
+ Redraw, optionally repositioning and resizing the screen.
+ .TP
+ .B "[count] {"
+@@ -735,13 +735,20 @@
+ .B "[count] ~"
+ Reverse the case of the next
+ .I count
+-character(s).
++character(s), if the
++.B tildeop
++option is
++.IR unset .
+ .TP
+ .B "[count] ~ motion"
+ Reverse the case of the characters in a text region specified by the
+ .I count
+ and
+-.IR motion .
++.IR motion ,
++if the
++.B tildeop
++option is
++.IR set .
+ .TP
+ .B "<interrupt>"
+ Interrupt the current operation.
+@@ -755,18 +762,18 @@
+ .B "<nul>"
+ Replay the previous input.
+ .TP
+-.B "<control-D>"
++.B "<control\(hyD>"
+ Erase to the previous
+ .B shiftwidth
+ column boundary.
+ .TP
+-.B "^<control-D>"
++.B "^<control\(hyD>"
+ Erase all of the autoindent characters, and reset the autoindent level.
+ .TP
+-.B "0<control-D>"
++.B "0<control\(hyD>"
+ Erase all of the autoindent characters.
+ .TP
+-.B "<control-T>"
++.B "<control\(hyT>"
+ Insert sufficient
+ .I <tab>
+ and
+@@ -777,7 +784,7 @@
+ .TP
+ .B "<erase>
+ .TP
+-.B "<control-H>"
++.B "<control\(hyH>"
+ Erase the last character.
+ .TP
+ .B "<literal next>"
+@@ -789,7 +796,7 @@
+ .B "<line erase>"
+ Erase the current line.
+ .TP
+-.B "<control-W>"
++.B "<control\(hyW>"
+ .TP
+ .B "<word erase>"
+ Erase the last word.
+@@ -799,7 +806,7 @@
+ .B ttywerase
+ options.
+ .TP
+-.B "<control-X>[0-9A-Fa-f]+"
++.B "<control\(hyX>[0\-9A\-Fa\-f]+"
+ Insert a character with the specified hexadecimal value into the text.
+ .TP
+ .B "<interrupt>"
+@@ -811,7 +818,7 @@
+ In each entry below, the tag line is a usage synopsis for the command.
+ .PP
+ .TP
+-.B "<end-of-file>"
++.B "<end\(hyof\(hyfile>"
+ Scroll the screen.
+ .TP
+ .B "! argument(s)"
+@@ -932,7 +939,7 @@
+ .I file
+ if it was previously saved.
+ .TP
+-.B "res[ize] [+|-]size"
++.B "res[ize] [+|\-]size"
+ .I \&Vi
+ mode only.
+ Grow or shrink the current screen.
+@@ -1034,7 +1041,10 @@
+ .I \&ex
+ and
+ .I \&vi
+-modes, unless otherwise specified.
++modes, unless otherwise specified. Multiple options can be given in
++one set or unset, separated by spaces or tabs. Spaces and tabs can be
++included in string options (eg. tags or filec) by preceding each with
++a backslash. There's no way to get backslash itself into an option.
+ .PP
+ .TP
+ .B "altwerase [off]"
+@@ -1071,7 +1081,7 @@
+ command.
+ .TP
+ .B "cedit [no default]"
+-Set the character to edit the colon command-line history.
++Set the character to edit the colon command\(hyline history.
+ .TP
+ .B "columns, co [80]"
+ Set the number of columns in the screen.
+@@ -1085,7 +1095,7 @@
+ The directory where temporary files are created.
+ .TP
+ .B "edcompatible, ed [off]"
+-Remember the values of the ``c'' and ``g'' suffices to the
++Remember the values of the \(lqc\(rq and \(lqg\(rq suffices to the
+ .B substitute
+ commands, instead of initializing them as unset for each new
+ command.
+@@ -1114,8 +1124,8 @@
+ Set the spacing between hardware tab settings.
+ .TP
+ .B "iclower [off]"
+-Makes all Regular Expressions case-insensitive,
+-as long as an upper-case letter does not appear in the search string.
++Makes all Regular Expressions case\(hyinsensitive,
++as long as an upper\(hycase letter does not appear in the search string.
+ .TP
+ .B "ignorecase, ic [off]"
+ Ignore case differences in regular expressions.
+@@ -1128,7 +1138,7 @@
+ .B "leftright [off]"
+ .I \&Vi
+ only.
+-Do left-right scrolling.
++Do left\(hyright scrolling.
+ .TP
+ .B "lines, li [24]"
+ .I \&Vi
+@@ -1227,7 +1237,7 @@
+ Display a command prompt.
+ .TP
+ .B "readonly, ro [off]"
+-Mark the file and session as read-only.
++Mark the file and session as read\(hyonly.
+ .TP
+ .B "recdir [/var/tmp/vi.recover]"
+ The directory where recovery files are stored.
+@@ -1278,7 +1288,7 @@
+ .\" to save my life. The ONLY way I've been able to get this to work
+ .\" is with the .tr command.
+ .tr Q"
+-.ds ms shellmeta [~{[*?$`'Q\e]
++.ds ms shellmeta [~{[*?$\`'Q\e]
+ .TP
+ .B "\*(ms"
+ .tr QQ
+@@ -1291,17 +1301,17 @@
+ .B "showmatch, sm [off]"
+ .I \&Vi
+ only.
+-Note matching ``{'' and ``('' for ``}'' and ``)'' characters.
++Note matching \(lq{\(rq and \(lq(\(rq for \(lq}\(rq and \(lq)\(rq characters.
+ .TP
+ .B "showmode, smd [off]"
+ .I \&Vi
+ only.
+-Display the current editor mode and a ``modified'' flag.
++Display the current editor mode and a \(lqmodified\(rq flag.
+ .TP
+ .B "sidescroll [16]"
+ .I \&Vi
+ only.
+-Set the amount a left-right scroll will shift.
++Set the amount a left\(hyright scroll will shift.
+ .TP
+ .B "slowopen, slow [off]"
+ Delay display updating during text input.
+@@ -1379,7 +1389,7 @@
+ .I \&Vi
+ only.
+ Break lines automatically, the specified number of columns from the
+-left-hand margin.
++left\(hyhand margin.
+ If both the
+ .B wraplen
+ and
+@@ -1392,7 +1402,7 @@
+ .I \&Vi
+ only.
+ Break lines automatically, the specified number of columns from the
+-right-hand margin.
++right\(hyhand margin.
+ If both the
+ .B wraplen
+ and
+@@ -1405,7 +1415,7 @@
+ Set searches to wrap around the end or beginning of the file.
+ .TP
+ .B "writeany, wa [off]"
+-Turn off file-overwriting checks.
++Turn off file\(hyoverwriting checks.
+ .SH "ENVIRONMENT VARIABLES
+ .TP
+ .I COLUMNS
+@@ -1430,7 +1440,7 @@
+ .TP
+ .I HOME
+ The user's home directory, used as the initial directory path
+-for the startup ``$\fIHOME\fP/.nexrc'' and ``$\fIHOME\fP/.exrc''
++for the startup \(lq$\fIHOME\fP/.nexrc\(rq and \(lq$\fIHOME\fP/.exrc\(rq
+ files.
+ This value is also used as the default directory for the
+ .I \&vi
+@@ -1462,7 +1472,7 @@
+ .TP
+ .I TERM
+ The user's terminal type.
+-The default is the type ``unknown''.
++The default is the type \(lqunknown\(rq.
+ If the
+ .I TERM
+ environmental variable is not set when
+@@ -1482,7 +1492,7 @@
+ SIGALRM
+ .I \&Vi/ex
+ uses this signal for periodic backups of file modifications and to
+-display ``busy'' messages when operations are likely to take a long time.
++display \(lqbusy\(rq messages when operations are likely to take a long time.
+ .TP
+ SIGHUP
+ .TP
+@@ -1492,7 +1502,7 @@
+ be later recovered.
+ See the
+ .I \&vi/ex
+-Reference manual section entitled ``Recovery'' for more information.
++Reference manual section entitled \(lqRecovery\(rq for more information.
+ .TP
+ SIGINT
+ When an interrupt occurs,
+@@ -1506,7 +1516,7 @@
+ The screen is resized.
+ See the
+ .I \&vi/ex
+-Reference manual section entitled ``Sizing the Screen'' for more information.
++Reference manual section entitled \(lqSizing the Screen\(rq for more information.
+ .TP
+ SIGCONT
+ .TP
+@@ -1521,7 +1531,7 @@
+ The default user shell.
+ .TP
+ /etc/vi.exrc
+-System-wide vi startup file.
++System\(hywide vi startup file.
+ .TP
+ /tmp
+ Temporary file directory.
+@@ -1546,38 +1556,38 @@
+ .IR curses (3),
+ .IR dbopen (3)
+ .sp
+-The ``Vi Quick Reference'' card.
++The \(lqVi Quick Reference\(rq card.
+ .sp
+-``An Introduction to Display Editing with Vi'', found in the
+-``UNIX User's Manual Supplementary Documents''
++\(lqAn Introduction to Display Editing with Vi\(rq, found in the
++\(lqUNIX User's Manual Supplementary Documents\(rq
+ section of both the 4.3BSD and 4.4BSD manual sets.
+ This document is the closest thing available to an introduction to the
+ .I \&vi
+ screen editor.
+ .sp
+-``Ex Reference Manual (Version 3.7)'',
++\(lqEx Reference Manual (Version 3.7)\(rq,
+ found in the
+-``UNIX User's Manual Supplementary Documents''
++\(lqUNIX User's Manual Supplementary Documents\(rq
+ section of both the 4.3BSD and 4.4BSD manual sets.
+ This document is the final reference for the
+ .I \&ex
+ editor, as distributed in most historic 4BSD and System V systems.
+ .sp
+-``Edit: A tutorial'',
++\(lqEdit: A tutorial\(rq,
+ found in the
+-``UNIX User's Manual Supplementary Documents''
++\(lqUNIX User's Manual Supplementary Documents\(rq
+ section of the 4.3BSD manual set.
+ This document is an introduction to a simple version of the
+ .I \&ex
+ screen editor.
+ .sp
+-``Ex/Vi Reference Manual'',
++\(lqEx/Vi Reference Manual\(rq,
+ found in the
+-``UNIX User's Manual Supplementary Documents''
++\(lqUNIX User's Manual Supplementary Documents\(rq
+ section of the 4.4BSD manual set.
+ This document is the final reference for the
+ .I \&nex/nvi
+-text editors, as distributed in 4.4BSD and 4.4BSD-Lite.
++text editors, as distributed in 4.4BSD and 4.4BSD\(hyLite.
+ .PP
+ .I Roff
+ source for all of these documents is distributed with
+@@ -1588,7 +1598,7 @@
+ .I nex/nvi
+ source code.
+ .sp
+-The files ``autowrite'', ``input'', ``quoting'' and ``structures''
++The files \(lqautowrite\(rq, \(lqinput\(rq, \(lqquoting\(rq and \(lqstructures\(rq
+ found in the
+ .I nvi/docs/internals
+ directory of the
+@@ -1602,7 +1612,7 @@
+ editor first appeared in 4.4BSD.
+ .SH STANDARDS
+ .I \&Nex/nvi
+-is close to IEEE Std1003.2 (``POSIX'').
++is close to IEEE Std1003.2 (\(lqPOSIX\(rq).
+ That document differs from historical
+ .I ex/vi
+ practice in several places; there are changes to be made on both sides.
diff --git a/editors/nvi/patches/nvi-17-tutorial_typos.patch b/editors/nvi/patches/nvi-17-tutorial_typos.patch
new file mode 100644
index 0000000..f45aa80
--- /dev/null
+++ b/editors/nvi/patches/nvi-17-tutorial_typos.patch
@@ -0,0 +1,63 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 17tutorial_typos.dpatch
+##
+## DP: Fix typos in the nvi tutorial.
+
+@DPATCH@
+--- nvi-1.81.6.orig/nvi-1.79/docs/tutorial/vi.beginner
++++ nvi-1.81.6/nvi-1.79/docs/tutorial/vi.beginner
+@@ -505,7 +505,7 @@
+ j - moves the cursor DOWN one line
+ h - moves the cursor one character to the LEFT
+
+-Section 22: {i} {a} {I} {A} {o} {O} ^[ (escape key)
++Section 22: {i} {a} {I} {A} {o} {O} {^[} (escape key)
+
+ For this and following sections you will need to use the ESCAPE key on your
+ terminal. It is usually marked ESC. Since the escape key is the same as
+@@ -525,9 +525,9 @@
+ on the word 'of'.)
+
+ Now carefully type the following string and observe the effects:
+- {iexample ^[} (remember: ^[ is the escape key)}
++ {iexample ^[} (remember: ^[ is the escape key)
+ The {i} begins the insert mode, and 'example ' is inserted into the line:
+-be sure to notice the blank in 'example '. The ^[ ends insertion mode,
++be sure to notice the blank in 'example '. The {^[} ends insertion mode,
+ and the line is updated to include the new string. Line 1 should look exactly
+ like Line 2.
+
+@@ -541,9 +541,9 @@
+ of 'line'. You can do this in several ways, one way is the following:
+ First, type {/line /^M}. This puts us on the word 'line' in Line 4
+ (the blank in the search string is important!). Next, type {e}. The 'e' puts
+-us at the end of the word. Now, type {as^[ (^[ is the escape character)}.
++us at the end of the word. Now, type {as^[} (^[ is the escape character).
+ The 'a' puts us in insert mode, AFTER the current character. We appended the
+-'s', and the escape ^[ ended the insert mode.
++'s', and the escape '^[' ended the insert mode.
+
+ The difference between {i} (insert) and {a} (append) is that {i} begins
+ inserting text BEFORE the cursor, and {a} begins inserting AFTER the cursor.
+--- nvi-1.81.6.orig/nvi-1.79/docs/tutorial/vi.advanced
++++ nvi-1.81.6/nvi-1.79/docs/tutorial/vi.advanced
+@@ -26,8 +26,8 @@
+ 1 introduction: {^F} {ZZ}
+ 2 introduction (con't) and positioning: {^F} {^B}
+ 3 introduction (con't) and positioning: {^F} {^B}
+- 4 positioning: {^F} {^B} ^M (return key)
+- 5 quitting: {:q!} ^M key
++ 4 positioning: {^F} {^B} {^M} (return key)
++ 5 quitting: {:q!} {^M} (return key)
+ 6 marking, cursor and screen positioning: {m} {G} {'} {z}
+ 7 marking, cursor and screen positioning: {m} {G} {'} {z}
+ 8 marking, cursor and screen positioning: {z} {m} {'}
+@@ -44,7 +44,7 @@
+ 19 screen positioning: {H} {M} {L}
+ 20 character positioning: {w} {b} {0} {W} {B} {e} {E} {'} {`}
+ 21 cursor positioning: {l} {k} {j} {h}
+- 22 adding text: {i} {a} {I} {A} {o} {O} ^[ (escape key)
++ 22 adding text: {i} {a} {I} {A} {o} {O} {^[} (escape key)
+ 23 character manipulation: {f} {x} {X} {w} {l} {r} {R} {s} {S} {J}
+ 24 undo: {u} {U}
+ 25 review
diff --git a/editors/nvi/patches/nvi-18-dbpagesize_binpower.patch b/editors/nvi/patches/nvi-18-dbpagesize_binpower.patch
new file mode 100644
index 0000000..0fabbc6
--- /dev/null
+++ b/editors/nvi/patches/nvi-18-dbpagesize_binpower.patch
@@ -0,0 +1,25 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 18dbpagesize_binpower.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Make sure that the pagesize passed to db__set_pagesize() is
+## DP: a power of two.
+
+@DPATCH@
+--- nvi-1.81.6.orig/common/exf.c 2009-03-09 01:48:01.695862889 +0100
++++ nvi-1.81.6/common/exf.c 2009-03-09 10:42:41.147866272 +0100
+@@ -249,11 +249,10 @@
+ * (vi should have good locality) or smaller than 1K.
+ */
+ psize = ((sb.st_size / 15) + 1023) / 1024;
+- if (psize > 10)
+- psize = 10;
+- if (psize == 0)
+- psize = 1;
+- psize *= 1024;
++ if (psize >= 8) psize=8<<10;
++ else if (psize >= 4) psize=4<<10;
++ else if (psize >= 2) psize=2<<10;
++ else psize=1<<10;
+
+ F_SET(ep, F_DEVSET);
+ ep->mdev = sb.st_dev;
diff --git a/editors/nvi/patches/nvi-19-include_term_h.patch b/editors/nvi/patches/nvi-19-include_term_h.patch
new file mode 100644
index 0000000..a4e4698
--- /dev/null
+++ b/editors/nvi/patches/nvi-19-include_term_h.patch
@@ -0,0 +1,28 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 19include_term_h.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Add <term.h> to the include list to suppress a few warnings.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/cl/cl_funcs.c nvi-1.81.6/cl/cl_funcs.c
+--- nvi-1.81.6.orig/cl/cl_funcs.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/cl/cl_funcs.c 2008-05-01 18:23:08.000000000 +0200
+@@ -18,6 +18,7 @@
+ #include <sys/time.h>
+
+ #include <bitstring.h>
++#include <term.h>
+ #include <ctype.h>
+ #include <signal.h>
+ #include <stdio.h>
+diff -Naur nvi-1.81.6.orig/cl/cl_screen.c nvi-1.81.6/cl/cl_screen.c
+--- nvi-1.81.6.orig/cl/cl_screen.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/cl/cl_screen.c 2008-05-01 18:23:02.000000000 +0200
+@@ -17,6 +17,7 @@
+ #include <sys/queue.h>
+
+ #include <bitstring.h>
++#include <term.h>
+ #include <errno.h>
+ #include <signal.h>
+ #include <stdio.h>
diff --git a/editors/nvi/patches/nvi-20-glibc_has_grantpt.patch b/editors/nvi/patches/nvi-20-glibc_has_grantpt.patch
new file mode 100644
index 0000000..967951e
--- /dev/null
+++ b/editors/nvi/patches/nvi-20-glibc_has_grantpt.patch
@@ -0,0 +1,29 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 20glibc_has_grantpt.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: glibc has grantpt(), so only hceck for HAVE_SYS5_PTY
+## DP: on non-glibc installations.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/ex/ex_script.c nvi-1.81.6/ex/ex_script.c
+--- nvi-1.81.6.orig/ex/ex_script.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/ex/ex_script.c 2008-05-01 18:24:06.000000000 +0200
+@@ -23,7 +23,8 @@
+ #include <sys/select.h>
+ #endif
+ #include <sys/stat.h>
+-#ifdef HAVE_SYS5_PTY
++/* glibc2.1 defines grantpt but there is no stropts.h */
++#if defined(HAVE_SYS5_PTY) && !defined(__GLIBC__)
+ #include <sys/stropts.h>
+ #endif
+ #include <sys/time.h>
+@@ -664,7 +665,7 @@
+ F_CLR(gp, G_SCRWIN);
+ }
+
+-#ifdef HAVE_SYS5_PTY
++#if defined(HAVE_SYS5_PTY) && !defined(__GLIBC__)
+ static int ptys_open __P((int, char *));
+ static int ptym_open __P((char *));
+
diff --git a/editors/nvi/patches/nvi-21-exrc_writability_check.patch b/editors/nvi/patches/nvi-21-exrc_writability_check.patch
new file mode 100644
index 0000000..a93dbc5
--- /dev/null
+++ b/editors/nvi/patches/nvi-21-exrc_writability_check.patch
@@ -0,0 +1,61 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 21exrc_writability_check.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: No description.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/ex/ex_init.c nvi-1.81.6/ex/ex_init.c
+--- nvi-1.81.6.orig/ex/ex_init.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/ex/ex_init.c 2008-05-01 18:24:45.000000000 +0200
+@@ -26,6 +26,9 @@
+ #include <string.h>
+ #include <unistd.h>
+
++#include <pwd.h>
++#include <grp.h>
++
+ #include "../common/common.h"
+ #include "tag.h"
+ #include "pathnames.h"
+@@ -346,6 +349,9 @@
+ int nf1, nf2;
+ char *a, *b, buf[MAXPATHLEN];
+
++ struct group *grp_p;
++ struct passwd *pwd_p;
++
+ /* Check for the file's existence. */
+ if (stat(path, sbp))
+ return (NOEXIST);
+@@ -359,10 +365,30 @@
+ }
+
+ /* Check writeability. */
+- if (sbp->st_mode & (S_IWGRP | S_IWOTH)) {
++ if (sbp->st_mode & S_IWOTH) {
+ etype = WRITER;
+ goto denied;
+ }
++ if (sbp->st_mode & S_IWGRP) {
++ /* on system error (getgrgid or getpwnam return NULL) set etype to WRITER
++ * and continue execution */
++ if( (grp_p = getgrgid(sbp->st_gid)) == NULL) {
++ etype = WRITER;
++ goto denied;
++ }
++
++ /* lookup the group members' uids for an uid different from euid */
++ while( ( *(grp_p->gr_mem) ) != NULL) { /* gr_mem is a null-terminated array */
++ if( (pwd_p = getpwnam(*(grp_p->gr_mem)++)) == NULL) {
++ etype = WRITER;
++ goto denied;
++ }
++ if(pwd_p->pw_uid != euid) {
++ etype = WRITER;
++ goto denied;
++ }
++ }
++ }
+ return (RCOK);
+
+ denied: a = msg_print(sp, path, &nf1);
diff --git a/editors/nvi/patches/nvi-23-debian_alternatives.patch b/editors/nvi/patches/nvi-23-debian_alternatives.patch
new file mode 100644
index 0000000..5614041
--- /dev/null
+++ b/editors/nvi/patches/nvi-23-debian_alternatives.patch
@@ -0,0 +1,35 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 23debian_alternatives.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Adapt the internal program name if nvi was called via one of
+## DP: the Debian alternative symlinks.
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/common/gs.c nvi-1.81.6/common/gs.c
+--- nvi-1.81.6.orig/common/gs.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/common/gs.c 2008-05-01 18:28:44.000000000 +0200
+@@ -45,6 +45,24 @@
+
+ gp->progname = name;
+
++#ifdef DEBIAN
++ /* This is because of the Debian alternatives system. The
++ definitions of editor, vi, view, and ex are transient. This
++ would be ok, except that the recovery file hardcodes the
++ name. The downside of this is that the error messages may
++ not quite match what the user expects */
++
++ if (!strcmp(name, "editor")) {
++ gp->progname = "nvi";
++ } else if (!strcmp(name, "vi")){
++ gp->progname = "nvi";
++ } else if (!strcmp(name, "view")){
++ gp->progname = "nview";
++ } else if (!strcmp(name, "ex")){
++ gp->progname = "nex";
++ }
++#endif /* DEBIAN */
++
+ /* Common global structure initialization. */
+ /* others will need to be copied from main.c */
+ CIRCLEQ_INIT(&gp->dq);
diff --git a/editors/nvi/patches/nvi-24-fallback_to_dumb_term.patch b/editors/nvi/patches/nvi-24-fallback_to_dumb_term.patch
new file mode 100644
index 0000000..29e356a
--- /dev/null
+++ b/editors/nvi/patches/nvi-24-fallback_to_dumb_term.patch
@@ -0,0 +1,29 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 24fallback_to_dumb_term.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: If there's no $TERM around, just fall back to "dumb".
+
+@DPATCH@
+diff -Naur nvi-1.81.6.orig/cl/cl_main.c nvi-1.81.6/cl/cl_main.c
+--- nvi-1.81.6.orig/cl/cl_main.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/cl/cl_main.c 2008-05-01 18:29:13.000000000 +0200
+@@ -96,6 +96,7 @@
+ if ((ttype = getenv("TERM")) == NULL)
+ ttype = "unknown";
+ term_init(gp->progname, ttype);
++ ttype = getenv("TERM");
+
+ /* Add the terminal type to the global structure. */
+ if ((OG_D_STR(gp, GO_TERM) =
+@@ -233,6 +234,11 @@
+
+ /* Set up the terminal database information. */
+ setupterm(ttype, STDOUT_FILENO, &err);
++ if (err == 0) {
++ (void)fprintf(stderr, "%s: %s: unknown terminal type, falling back to 'dumb'\n", name, ttype);
++ setenv("TERM", "dumb", 1);
++ setupterm("dumb", STDOUT_FILENO, &err);
++ }
+ switch (err) {
+ case -1:
+ (void)fprintf(stderr,
diff --git a/editors/nvi/patches/nvi-25-manpage_note_dropped_F.patch b/editors/nvi/patches/nvi-25-manpage_note_dropped_F.patch
new file mode 100644
index 0000000..2087e7d
--- /dev/null
+++ b/editors/nvi/patches/nvi-25-manpage_note_dropped_F.patch
@@ -0,0 +1,58 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 25manpage_note_dropped_F.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Replace the manpage paragraph about the '-F' commandline option
+## DP: with a notice that is has been dropped.
+
+@DPATCH@
+--- nvi-1.81.6+debian-1.orig/docs/vi.man/vi.1 2008-06-13 00:52:45.000000000 +0200
++++ nvi-1.81.6+debian-1/docs/vi.man/vi.1 2008-06-13 00:55:40.000000000 +0200
+@@ -17,7 +17,7 @@
+ .SH SYNOPSIS
+ .B ex
+ [\c
+-.B \-eFRrSsv\c
++.B \-eRrSsv\c
+ ] [\c
+ .BI \-c " cmd"\c
+ ] [\c
+@@ -28,7 +28,7 @@
+ .br
+ .B vi
+ [\c
+-.B \-eFlRrSv\c
++.B \-elRrSv\c
+ ] [\c
+ .BI \-c " cmd"\c
+ ] [\c
+@@ -39,7 +39,7 @@
+ .br
+ .B view
+ [\c
+-.B \-eFRrSv\c
++.B \-eRrSv\c
+ ] [\c
+ .BI \-c " cmd"\c
+ ] [\c
+@@ -113,11 +113,6 @@
+ Start editing in ex mode, as if the command name were
+ .IR \&ex .
+ .TP
+-.B \-F
+-Don't copy the entire file when first starting to edit.
+-(The default is to make a copy in case someone else modifies
+-the file during your edit session.)
+-.TP
+ .B \-l
+ Start editing with the lisp and showmatch options set.
+ .TP
+@@ -169,6 +164,9 @@
+ or
+ .IR view .
+ .PP
++Note that the \fB-F\fP option (which prevented \fIex/vi\fP from making
++a full backup of the target file) has been removed and is no longer available.
++.PP
+ Command input for
+ .I ex/vi
+ is read from the standard input.
diff --git a/editors/nvi/patches/nvi-26-trailing_tab_segv.patch b/editors/nvi/patches/nvi-26-trailing_tab_segv.patch
new file mode 100644
index 0000000..bf3653b
--- /dev/null
+++ b/editors/nvi/patches/nvi-26-trailing_tab_segv.patch
@@ -0,0 +1,18 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 26trailing_tab_segv.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Prevent a segfault if a trailing tab is pushed to a new line by inserting
+## DP: characters before it if 'set number' is in effect.
+
+@DPATCH@
+--- nvi-1.81.6+debian.orig/vi/vs_relative.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6+debian/vi/vs_relative.c 2008-06-13 03:22:55.000000000 +0200
+@@ -133,7 +133,7 @@
+ * Initialize the pointer into the buffer and current offset.
+ */
+ p = lp;
+- curoff = 0;
++ curoff = scno;
+
+ /* Macro to return the display length of any signal character. */
+ #define CHLEN(val) (ch = *(UCHAR_T *)p++) == '\t' && \
diff --git a/editors/nvi/patches/nvi-27-support_C_locale.patch b/editors/nvi/patches/nvi-27-support_C_locale.patch
new file mode 100644
index 0000000..24663d1
--- /dev/null
+++ b/editors/nvi/patches/nvi-27-support_C_locale.patch
@@ -0,0 +1,30 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 27support_C_locale.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Allow users to edit 8-bit files even under LC_CTYPE=C.
+
+@DPATCH@
+--- nvi-1.81.6.orig/common/conv.c 2007-11-18 17:41:42.000000000 +0100
++++ nvi-1.81.6/common/conv.c 2009-03-09 16:45:37.812022582 +0100
+@@ -322,11 +322,16 @@
+ else {
+ setlocale(LC_ALL, "");
+ #ifdef USE_WIDECHAR
+- sp->conv.sys2int = cs_char2int;
+- sp->conv.int2sys = cs_int2char;
+- sp->conv.file2int = fe_char2int;
+- sp->conv.int2file = fe_int2char;
+- sp->conv.input2int = ie_char2int;
++ if (!strcmp(LANGCODESET, "ANSI_X3.4-1968")) {
++ sp->conv.file2int = sp->conv.input2int = sp->conv.sys2int = raw2int;
++ sp->conv.int2sys = sp->conv.int2file = int2raw;
++ } else {
++ sp->conv.sys2int = cs_char2int;
++ sp->conv.int2sys = cs_int2char;
++ sp->conv.file2int = fe_char2int;
++ sp->conv.int2file = fe_int2char;
++ sp->conv.input2int = ie_char2int;
++ }
+ #endif
+ #ifdef USE_ICONV
+ o_set(sp, O_FILEENCODING, OS_STRDUP, nl_langinfo(CODESET), 0);
diff --git a/editors/nvi/patches/nvi-29-file_backup.patch b/editors/nvi/patches/nvi-29-file_backup.patch
new file mode 100644
index 0000000..e168105
--- /dev/null
+++ b/editors/nvi/patches/nvi-29-file_backup.patch
@@ -0,0 +1,35 @@
+#! /bin/sh /usr/share/dpatch/dpatch-run
+## 29file_backup.dpatch by <hesso@pool.math.tu-berlin.de>
+##
+## DP: Save the intermediate CHAR2INT conversion pointer because
+## DP: that pointer is reused by later conversions in calls below.
+
+@DPATCH@
+--- nvi-1.81.6.orig/common/exf.c 2009-07-24 11:30:05.962060755 +0200
++++ nvi-1.81.6/common/exf.c 2009-07-24 12:09:57.511311177 +0200
+@@ -1092,8 +1092,8 @@
+ size_t blen;
+ int flags, maxnum, nr, num, nw, rfd, wfd, version;
+ char *bp, *estr, *p, *pct, *slash, *t, *wfname, buf[8192];
+- CHAR_T *wp;
+- size_t wlen;
++ CHAR_T *wp, *wp2;
++ size_t wlen, wlen2;
+ size_t nlen;
+ char *d = NULL;
+
+@@ -1148,8 +1148,13 @@
+ } else
+ version = 0;
+ CHAR2INT(sp, bname, strlen(bname) + 1, wp, wlen);
+- if (argv_exp2(sp, &cmd, wp, wlen - 1))
++ GET_SPACE_RETW(sp, wp2, wlen2, wlen);
++ MEMCPY(wp2, wp, wlen);
++ if (argv_exp2(sp, &cmd, wp2, wlen2 - 1)) {
++ FREE_SPACEW(sp, wp2, wlen2);
+ return (1);
++ }
++ FREE_SPACEW(sp, wp2, wlen2);
+
+ /*
+ * 0 args: impossible.
diff --git a/editors/nvi/sources b/editors/nvi/sources
new file mode 100644
index 0000000..8df1f87
--- /dev/null
+++ b/editors/nvi/sources
@@ -0,0 +1,29 @@
+http://pkgs.fedoraproject.org/repo/pkgs/nvi/nvi-1.81.6.tar.bz2/88d1e23115ee9f2961186b62e55f5704/nvi-1.81.6.tar.bz2 nvi
+http://download.oracle.com/berkeley-db/db-5.3.28.tar.gz db
+patches/nvi-00-create-symlinks.patch
+patches/nvi-01-additional_upstream_data.patch
+patches/nvi-03-db4.patch
+patches/nvi-04-confdefs.patch
+patches/nvi-06-default_value_escapetime.patch
+patches/nvi-07-flush_cache.patch
+patches/nvi-08-lfs.patch
+patches/nvi-08-safe_printf.patch
+patches/nvi-08-tempfile_umask.patch
+patches/nvi-09-casting.patch
+patches/nvi-10-no_one_line_visual.patch
+patches/nvi-11-backward_sentence_moving.patch
+patches/nvi-12-horiz_scroll_count.patch
+patches/nvi-14-private_regex_fixes.patch
+patches/nvi-15-search_word.patch
+patches/nvi-16-manpage_errors.patch
+patches/nvi-17-tutorial_typos.patch
+patches/nvi-18-dbpagesize_binpower.patch
+patches/nvi-19-include_term_h.patch
+patches/nvi-20-glibc_has_grantpt.patch
+patches/nvi-21-exrc_writability_check.patch
+patches/nvi-23-debian_alternatives.patch
+patches/nvi-24-fallback_to_dumb_term.patch
+patches/nvi-25-manpage_note_dropped_F.patch
+patches/nvi-26-trailing_tab_segv.patch
+patches/nvi-27-support_C_locale.patch
+patches/nvi-29-file_backup.patch
diff --git a/editors/nvi/version b/editors/nvi/version
new file mode 100644
index 0000000..388ecf5
--- /dev/null
+++ b/editors/nvi/version
@@ -0,0 +1 @@
+1.81.6 1