Mercurial > vim
view src/testdir/test_tab.vim @ 34074:1629cc65d78d v9.1.0006
patch 9.1.0006: is*() and to*() function may be unsafe
Commit: https://github.com/vim/vim/commit/184f71cc6868a240dc872ed2852542bbc1d43e28
Author: Keith Thompson <Keith.S.Thompson@gmail.com>
Date: Thu Jan 4 21:19:04 2024 +0100
patch 9.1.0006: is*() and to*() function may be unsafe
Problem: is*() and to*() function may be unsafe
Solution: Add SAFE_* macros and start using those instead
(Keith Thompson)
Use SAFE_() macros for is*() and to*() functions
The standard is*() and to*() functions declared in <ctype.h> have
undefined behavior for negative arguments other than EOF. If plain char
is signed, passing an unchecked value from argv for from user input
to one of these functions has undefined behavior.
Solution: Add SAFE_*() macros that cast the argument to unsigned char.
Most implementations behave sanely for negative arguments, and most
character values in practice are non-negative, but it's still best
to avoid undefined behavior.
The change from #13347 has been omitted, as this has already been
separately fixed in commit ac709e2fc0db6d31abb7da96f743c40956b60c3a
(v9.0.2054)
fixes: #13332
closes: #13347
Signed-off-by: Keith Thompson <Keith.S.Thompson@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
author | Christian Brabandt <cb@256bit.org> |
---|---|
date | Thu, 04 Jan 2024 21:30:04 +0100 |
parents | 08940efa6b4e |
children |
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" Various tests for inserting a Tab. " Tests for "r<Tab>" with 'smarttab' and 'expandtab' set/not set. " Also test that dv_ works correctly func Test_smarttab() enew! set smarttab expandtab ts=8 sw=4 " make sure that backspace works, no matter what termcap is used exe "set t_kD=\<C-V>x7f t_kb=\<C-V>x08" call append(0, ['start text', \ "\t\tsome test text", \ 'test text', \ "\t\tother test text", \ ' a cde', \ ' f ghi', \ 'test text', \ ' Second line beginning with whitespace' \ ]) call cursor(1, 1) exe "normal /some\<CR>" exe "normal r\t" call assert_equal("\t\t ome test text", getline('.')) set noexpandtab exe "normal /other\<CR>" exe "normal r\t" call assert_equal("\t\t ther test text", getline('.')) " Test replacing with Tabs and then backspacing to undo it exe "normal j0wR\t\t\t\<BS>\<BS>\<BS>" call assert_equal(" a cde", getline('.')) " Test replacing with Tabs exe "normal j0wR\t\t\t" call assert_equal(" \t\thi", getline('.')) " Test that copyindent works with expandtab set set expandtab smartindent copyindent ts=8 sw=8 sts=8 exe "normal jo{\<CR>x" call assert_equal('{', getline(line('.') - 1)) call assert_equal(' x', getline('.')) set nosol exe "normal /Second line/\<CR>" exe "normal fwdv_" call assert_equal(' with whitespace', getline('.')) enew! set expandtab& smartindent& copyindent& ts& sw& sts& endfunc func Test_softtabstop() new set sts=0 sw=0 exe "normal ix\<Tab>x\<Esc>" call assert_equal("x\tx", getline(1)) call setline(1, '') set sts=4 exe "normal ix\<Tab>x\<Esc>" call assert_equal("x x", getline(1)) call setline(1, '') set sts=-1 sw=4 exe "normal ix\<Tab>x\<Esc>" call assert_equal("x x", getline(1)) call setline(1, 'x ') set sts=0 sw=0 backspace=start exe "normal A\<BS>x\<Esc>" call assert_equal("x x", getline(1)) call setline(1, 'x ') set sts=4 exe "normal A\<BS>x\<Esc>" call assert_equal("x x", getline(1)) call setline(1, 'x ') set sts=-1 sw=4 exe "normal A\<BS>x\<Esc>" call assert_equal("x x", getline(1)) call setline(1, 'x') set sts=-1 sw=0 smarttab exe "normal I\<Tab>\<Esc>" call assert_equal("\tx", getline(1)) call setline(1, 'x') exe "normal I\<Tab>\<BS>\<Esc>" call assert_equal("x", getline(1)) set sts=0 sw=0 backspace& nosmarttab bwipe! endfunc " vim: shiftwidth=2 sts=2 expandtab