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Bash-4.2 patch 3

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This commit is contained in:
Chet Ramey 2011-11-22 20:00:02 -05:00
commit d26fdfa0b9
2 changed files with 65 additions and 21 deletions
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84
lib/glob/gmisc.c
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@ -77,8 +77,8 @@ wmatchlen (wpat, wmax)
wchar_t *wpat;
size_t wmax;
{
wchar_t wc, *wbrack;
int matlen, t, in_cclass, in_collsym, in_equiv;
wchar_t wc;
int matlen, bracklen, t, in_cclass, in_collsym, in_equiv;
if (*wpat == 0)
return (0);
@ -118,58 +118,80 @@ wmatchlen (wpat, wmax)
break;
case L'[':
/* scan for ending `]', skipping over embedded [:...:] */
wbrack = wpat;
bracklen = 1;
wc = *wpat++;
do
{
if (wc == 0)
{
matlen += wpat - wbrack - 1; /* incremented below */
break;
wpat--; /* back up to NUL */
matlen += bracklen;
goto bad_bracket;
}
else if (wc == L'\\')
{
wc = *wpat++;
if (*wpat == 0)
break;
/* *wpat == backslash-escaped character */
bracklen++;
/* If the backslash or backslash-escape ends the string,
bail. The ++wpat skips over the backslash escape */
if (*wpat == 0 || *++wpat == 0)
{
matlen += bracklen;
goto bad_bracket;
}
}
else if (wc == L'[' && *wpat == L':') /* character class */
{
wpat++;
bracklen++;
in_cclass = 1;
}
else if (in_cclass && wc == L':' && *wpat == L']')
{
wpat++;
bracklen++;
in_cclass = 0;
}
else if (wc == L'[' && *wpat == L'.') /* collating symbol */
{
wpat++;
bracklen++;
if (*wpat == L']') /* right bracket can appear as collating symbol */
wpat++;
{
wpat++;
bracklen++;
}
in_collsym = 1;
}
else if (in_collsym && wc == L'.' && *wpat == L']')
{
wpat++;
bracklen++;
in_collsym = 0;
}
else if (wc == L'[' && *wpat == L'=') /* equivalence class */
{
wpat++;
bracklen++;
if (*wpat == L']') /* right bracket can appear as equivalence class */
wpat++;
{
wpat++;
bracklen++;
}
in_equiv = 1;
}
else if (in_equiv && wc == L'=' && *wpat == L']')
{
wpat++;
bracklen++;
in_equiv = 0;
}
else
bracklen++;
}
while ((wc = *wpat++) != L']');
matlen++; /* bracket expression can only match one char */
bad_bracket:
break;
}
}
@ -213,8 +235,8 @@ umatchlen (pat, max)
char *pat;
size_t max;
{
char c, *brack;
int matlen, t, in_cclass, in_collsym, in_equiv;
char c;
int matlen, bracklen, t, in_cclass, in_collsym, in_equiv;
if (*pat == 0)
return (0);
@ -254,58 +276,80 @@ umatchlen (pat, max)
break;
case '[':
/* scan for ending `]', skipping over embedded [:...:] */
brack = pat;
bracklen = 1;
c = *pat++;
do
{
if (c == 0)
{
matlen += pat - brack - 1; /* incremented below */
break;
pat--; /* back up to NUL */
matlen += bracklen;
goto bad_bracket;
}
else if (c == '\\')
{
c = *pat++;
if (*pat == 0)
break;
/* *pat == backslash-escaped character */
bracklen++;
/* If the backslash or backslash-escape ends the string,
bail. The ++pat skips over the backslash escape */
if (*pat == 0 || *++pat == 0)
{
matlen += bracklen;
goto bad_bracket;
}
}
else if (c == '[' && *pat == ':') /* character class */
{
pat++;
bracklen++;
in_cclass = 1;
}
else if (in_cclass && c == ':' && *pat == ']')
{
pat++;
bracklen++;
in_cclass = 0;
}
else if (c == '[' && *pat == '.') /* collating symbol */
{
pat++;
bracklen++;
if (*pat == ']') /* right bracket can appear as collating symbol */
pat++;
{
pat++;
bracklen++;
}
in_collsym = 1;
}
else if (in_collsym && c == '.' && *pat == ']')
{
pat++;
bracklen++;
in_collsym = 0;
}
else if (c == '[' && *pat == '=') /* equivalence class */
{
pat++;
bracklen++;
if (*pat == ']') /* right bracket can appear as equivalence class */
pat++;
{
pat++;
bracklen++;
}
in_equiv = 1;
}
else if (in_equiv && c == '=' && *pat == ']')
{
pat++;
bracklen++;
in_equiv = 0;
}
else
bracklen++;
}
while ((c = *pat++) != ']');
matlen++; /* bracket expression can only match one char */
bad_bracket:
break;
}
}