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48202 + 48366: Fix handling of NUL bytes in zexpandtabs multibyte version

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Mikael Magnusson 2021-03-12 03:50:01 +01:00
parent 3afdfef31c
commit ea3351c496
3 changed files with 15 additions and 5 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2021-04-01 Mikael Magnusson <mikachu@gmail.com>
* 48202 (+ 48366 test fix from Jun): Src/utils.c,
Test/B03print.ztst: Fix handling of NUL bytes in zexpandtabs
multibyte version
2021-03-31 Oliver Kiddle <opk@zsh.org>
* github #74: Caleb Maclennan: Completion/Unix/Command/_vcsh:

5
Src/utils.c
View file

@ -5912,8 +5912,11 @@ zexpandtabs(const char *s, int len, int width, int startpos, FILE *fout,
memset(&mbs, 0, sizeof(mbs));
s++;
len--;
} else if (ret == MB_INCOMPLETE) {
} else if (ret == MB_INCOMPLETE ||
/* incomplete at end --- assume likewise, best we've got */
ret == 0) {
/* NUL character returns 0, which would loop infinitely, so advance
* one byte in this case too */
s++;
len--;
} else {

9
Test/B03print.ztst
View file

@ -304,15 +304,16 @@
foo=$'one\ttwo\tthree\tfour\n'
foo+=$'\tone\ttwo\tthree\tfour\n'
foo+=$'\t\tone\t\ttwo\t\tthree\t\tfour'
print -x4 $foo
print -X4 $foo
foo+='\0' # regression test for multibyte tab expand
print -x4 $foo | tr '\0' Z # avoid raw nul byte in expected output below
print -X4 $foo | tr '\0' Z
0:Tab expansion by print
>one two three four
> one two three four
> one two three four
> one two three fourZ
>one two three four
> one two three four
> one two three four
> one two three fourZ
unset foo
print -v foo once more