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POSIX finally gave us a way to use echo in a portable way despite
differences of opinion about whether to default interpretation of escape
sequences to on or off: -e enables and -E disables (as already
implemented by busybox and coreutils).
http://austingroupbugs.net/view.php?id=1222
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Exec -k value as regex on basename, and on the first content line
outside a tag or on a referenced see-other, whichever appears earlier.
Reuse zcat choice as a function when looping over files. Fix \-\- and
glob.h include leftover. Handle man-pages example newlines. Clarify the
todos, naming package and issue. Remaining items are more of a wishlist
than a plan. Remove `<1>2` because it doesn't let `-k .` work, please
look into that.
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The permissions preservation test still fails for me, but that seems to
be because my environment changed: it's failing because of my umask.
I'll fix that in a separate patch, since it's unrelated.
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Also fix the non-tty output.
Also tweak our output so the tests pass with TEST_HOST=1 too.
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Commit 9448c33944651c1644ffbd0f52cf9d43cae19599 broke ELF note parsing,
because the bounds checking was off. Fix that but also generalize it so
that we won't need note-specific bounds checking in future.
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Reimplemented to command mode execution to follow vi cmd pattern.
(REG)[COUNT0]{CMD}[COUNT1]<MOV>(SYM)
Most of the moves can be executed intependently or before command,
some require character after. (possibly with utf8)
Some of the commands do not require move, such as D, J, dd, yy, x...
There is also tons of special cases where move behaves differently
depending on command. For example 1cw and 1ce appear to be the same
but 1dw and 1de are not...
Most of the operations still need reimplementing and lots of cleanup
in order them to behave correctly
refactored word move to work with utf-8
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There's probably more to do, but it seems usable at this point.
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To look up docs on my netbook and server. Practically deroff.1, with
heuristic for where to put spaces and newlines. How would you simplify
file resolution and bzcat? What have I got wrong when escaping slashes,
because while \-\^\- is -- ok, \-\- becomes -\-, e.g. in git-pull.1?
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leaking memory), and mod env command to test it.
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next_printf() shouldn't return null unless it never found the start of an
escape sequence (it'll return a pointer to the null at the end of the string
otherwise), and the only time we point it at a % and it doesn't is when it's
%%. So handle that before calling. (Also, a single trailing % prints in
other implementations, and while I'm there update to use FLAG() macros,
add a couple comments, and only xflush() once per pattern.)
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When the specified format string has odd '%' in the end,
the next_printf function will return null. Checking
the result value before using it.
Signed-off-by: liwugang <liwugang@xiaomi.com>
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Reimplemented basic cursor movements and char delete.
In order to work more correctly with utf-8 data.
x,h,j,k,l seems to work now with test data such as
tests/files/utf8/test2.txt
hjkl now accept count parameter so 1000j will scroll file 1000 lines
relative move to bottom
word movements w,e,b... still need to be still reimplemented in order to
step correctly on utf-8 data
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Style cleanups:
Removing whitespaces at end of lines, hopefully reduces git am
warnings
Bug fixes:
fix segfault if file did not exist, now creates one empty line
fix insert mode text not showing on start of line
fix append on empty line
fix cursor move right on empty line
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Now calculates utf-8 rune width properly before trying to print on screen.
works with test1.txt and test2.txt on tests/files/utf8 folder with
0x0300-0x036F combining chars
Uses mbtowc and wcwidth to calculate width of rune. These both should be
implemented on c runtime that conforms POSIX-1.2001. Different c
runtimes might have different level of support to combining char
ranges etc...
I think there is no standard way to calculate utf-8 rune width without
converting it first to widechar. And i think conversion to widechar just
to calculate width is silly, since all write calls can be done with utf8
directly (on utf8 locales ofc), but in order to calculate them yourself
without pointless conversion, one would need to write variable byte lookup
array for binary searching weird ranges and make sure it works with big-endian
systems too...
By the way running ./watch ./cat tests/files/utf8/japan.txt does not print the
text for some reason, but other test data does... I was checking how
well original crunch_str works and noticed it.
-Jarno
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implement deferred utime updates (so directory timestamps correct).
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and fix tests to pass on host too.
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BcVec contains the null at the end, so v->len is greater than
strlen(v->v) by one.
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Gentoo removes verbosely when building packages, for example vim-core:
https://github.com/gentoo/gentoo/blob/665eaa8/app-editors/vim-core/vim-core-8.1.0648.ebuild#L120
Implement like toy cp, without prepending an escape sign to quotation
marks in filenames. Document in a test this difference from coreutils
but similarity to busybox. How do other implementations handle such
escapes? If it matters, would you approach it with a loop and multiple
prints or somehow else?
Short help description follows 141a075, consistent with other commands.
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The return value of -exec was the command's exit code, which did not
account for the fact that an exit code of zero means success, while in
C, zero means failure. From POSIX:
> the primary shall evaluate as true if the utility returns a zero
> value as exit status
This commit flips the return value, and adds two tests.
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