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Rethink syntax_err a bit. Try to track top level shell pid for $$
including passing it to nommu subshells. Reset hfd more often so it
doesn't climb endlessly. Leak fewer filehandles and detect more
filehandle exhaustion errors. Replace skip_quote() with a second
mode for parse_word(). Fix $() and implement $(<input).
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Turns out I move around using these a lot too. I do tend to have very
tall terminals...
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The forward movement seems okay (no worse than the equivalent arrow key
movement), but I haven't yet worked out how to move the cursor back when
necessary.
Also fix the location of the cursor in ex mode, and stop showing ex
commands in bold.
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Looks like I left off half way through this!
Also default readelf to n while it's still in pending.
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to functions that aren't entry points, and collate debug code at top.
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As soon as mmap() is done, we can close the fd. xmmap() also will exit
rather than return failure so we can remove that check, and fdlength()
will fall back to lseek() so there's no need to have the fallback in vi
itself.
Spotted because the `TT.fd = 0` in linelist_unload() seemed suspicious;
-1 would have been more natural.
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Not entirely debugged, but more or less there-ish.
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Add -e, and stop documenting no-op -W.
Fix sign issues, and add a few extra sanity checks.
Redo the BE/LE 16/32/64 reading.
Remove the NOSPACE=1 from the -l test, and fix the -l code to match the
binutils output. Most usefully, this fixes the weird way the NULL
section's empty name would cause misalignment in the section to segment
mapping output.
Add a test for -s (symbol table).
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Place function calls in order so that there is no unneeded
declarations, clear some whitespace stuff. Add few commands
that are commonly used.
cleanup: reorganize functions
cleanup: some whitespace stuff
add: vi_o vi_O vi_I
fix: stop at edges when h and l
fix: fix dd not updating screen
fix: render after all delete moves
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Going to $ made draw_page render cursor to wrong line
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Replaced dlist linelist with continuous memory blocks. This will allow
editing huge files without billion mallocs. File is first opened with
mmap() and mapped region is fully described in block_list as one block.
Currently "valid" data is described as slices, when first loading file
there is only one slice that points to memory existing in block_list.
When cutting text, block_list is not freed or modified, but instead
slice_list is modified to have "hole" between 2 slices. when inserting
new mem_block is added, previos slices are cut in cursor position and
new slice is added...
Added functions to handling data inside block_list+slice_list
insert_str(), cut_str() are used for all delete and add operations
text_strrchr(), text_strchr() are used for searching lineendings
text_byte(), text_codepoint(), text_getline() are for simple data access
Implemented: more or less all previous functionality
Implemented more proper file write:
file is saved to .swp, blocks are unloaded, file permissions are copied,
and atomic rename is called, block is reloaded
chmod some defaults(rw-rw-r--) if original file could not be fstat (does
not exist)
FIX make all tests pass
Removed: Some unused functions
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(A git build takes it from "git describe".)
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makes those two remaining tests pass.
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Test file integrity after load, move, delete and save+exit. Drawing
of buffer is not tested yet.
Added -s script option, accept file that is run as startup script of
commands. File is parsed byte at time and handled as you had typed it.
If EOF has been reached without editor close command, editing is
continued normally using keyboard. This functionality is in vim and
neovim, but not in POSIX vi standard. nvi (vi used in some macs) has
-s with different meaning...
Some simple tests added, dw last line test fails, so test is disabled.
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fix: first line delete
fix: delete with e move
fix: statusline 1 row lower, remove eol
cleanup: use dlist_pop on delete
cleanup: move globals into GLOBALS
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^D is the opposite of ^U in vi (the ^D/^U pair is the half-screen
version of ^F/^B). ^C is unbound in vi. It's pretty surprising for these
to cause toybox vi to exit, and it's annoying as long as toybox vi
unconditionally exits rather than checks whether there are unsaved
modifications!
(I'm tempted to implement ^D/^U and ^F/^B, but I don't want to make
Jarno's rebase of his in-progress changes any harder.)
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used uninitalized" warning, move flow control character detection to the
right place, change scratch zeroing to the same way main() does it.
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All of this was fine on LP64 where `long` and `long long` are the same
length, but breaks the LP32 build with -Wformat.
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The "historical" variant is still the only one in use on Android right
now. We still need to switch to the numbers we agreed on with the other
System V ABI users.
See https://groups.google.com/g/generic-abi/c/bX460iggiKg for the
original discussion on RELR.
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mbtowc(0, 0, 4) is weird, and ignoring the result is weird. Avoid all
this by just reusing the toybox lib utf8 functions.
Also fix the row/column display on the status line to count from 1 and
correctly distinguish bytes and characters in non-ASCII, and change the
mode output to only explicitly say when we're in insert mode, in the
same way that vim does. (Every time I saw the old blue-on-black text for
COMMAND I thought toybox vi had crashed!)
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Basic readelf(1) implementation, with output close enough to the binutils
version to be usable with scripts that expect the binutils version. This
started as an implementation of nm(1) until I realized that I almost always
want readelf instead, and that you actually have to do much of the work
needed for readelf just to implement nm. Arguably nm (being part of POSIX)
belongs in toybox while readelf doesn't. An argument could also be made that
neither really belongs in toybox, belonging in a separate set of development
tools (such as binutils or the LLVM binutils).
Doesn't support most of the architecture-specific stuff, most notably
relocations, but is aware of things like ARM exidx sections and the common
register state notes in core dumps for the "big four" architectures: arm,
arm64, x86, and x86-64.
Doesn't support symbol versions (but probably should).
Doesn't support section groups or the -t "section details" (which is a long
form of -S "section headers" that I've never seen used in practice and which
isn't part of -a). Doesn't support dumping unwind info or the hash table
bucket histograms.
Reuses the table of ELF architectures from file(1).
Not fuzzed, but successfully parses all the ELF files in my Ubuntu 18.04
system's lib directories. Attempts to exit with an error when presented with
an invalid ELF file rather than struggle on as binutils seems to.
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set $HOME $PWD and $OLDPWD, fix prompt \w, shuffle some functions around
to avoid prototypes, implement tilde expansion, add FORCE_COPY.
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a full block.
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output #definable.
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