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39310/0003: internals: match_str: Document 'savw'. Avoid magic number.

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All callees checked to ensure that they only check that parameter for nonzeroness.
This commit is contained in:
Daniel Shahaf 2016-09-14 03:38:34 +00:00
parent 14989cea4a
commit 59aabe483c
2 changed files with 9 additions and 3 deletions
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9
Src/Zle/compmatch.c
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@ -641,7 +641,7 @@ match_str(char *l, char *w, Brinfo *bpp, int bc, int *rwlp,
* the temporal lobe. Reward promised for its safe return.
* Contact zsh-workers@zsh.org.
*/
char *tp, savl = '\0', savw;
char *tp, savl = '\0';
/*
* The anchor on this end.
*/
@ -721,15 +721,18 @@ match_str(char *l, char *w, Brinfo *bpp, int bc, int *rwlp,
!match_parts(l + aoff , tp - moff, alen, part))
break;
if (sfx) {
/* Call ourselves recursively with the
* anchor removed. */
char savw;
if ((savw = tp[-alen]))
tp[-alen] = '\0';
t = match_str(l - ll, w - lw,
NULL, 0, NULL, 1, 2, part);
NULL, 0, NULL, sfx, 2, part);
if (savw)
tp[-alen] = savw;
} else
t = match_str(l + llen + moff, tp + moff,
NULL, 0, NULL, 0, 1, part);
NULL, 0, NULL, sfx, 1, part);
if (t || (mp->wlen == -1 && !both))
break;
}