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path: root/usr/src/lib/libast/common/regex/regcomp.c
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Diffstat (limited to 'usr/src/lib/libast/common/regex/regcomp.c')
-rw-r--r--usr/src/lib/libast/common/regex/regcomp.c81
1 files changed, 50 insertions, 31 deletions
diff --git a/usr/src/lib/libast/common/regex/regcomp.c b/usr/src/lib/libast/common/regex/regcomp.c
index 90098dfbc2..4573cc217b 100644
--- a/usr/src/lib/libast/common/regex/regcomp.c
+++ b/usr/src/lib/libast/common/regex/regcomp.c
@@ -1,7 +1,7 @@
/***********************************************************************
* *
* This software is part of the ast package *
-* Copyright (c) 1985-2009 AT&T Intellectual Property *
+* Copyright (c) 1985-2010 AT&T Intellectual Property *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Intellectual Property *
@@ -85,6 +85,7 @@ typedef struct Stats_s
unsigned short a; /* number of alternations */
unsigned short b; /* number of backrefs */
unsigned short c; /* number of closures */
+ unsigned short e; /* $ */
unsigned short i; /* number of negations */
unsigned short p; /* number of named subexpressions */
unsigned short s; /* number of simple closures */
@@ -461,6 +462,9 @@ stats(register Cenv_t* env, register Rex_t* e)
if ((env->stats.n += cn) < nn)
return 1;
break;
+ case REX_END:
+ env->stats.e = 1;
+ break;
case REX_GROUP:
if (e->re.group.number && ++env->stats.p <= 0 || !e->re.group.number && ++env->stats.u <= 0)
return 1;
@@ -995,9 +999,9 @@ token(register Cenv_t* env)
}
else if (c == '^')
{
- if (env->type == BRE && (env->cursor == env->pattern || posixkludge))
+ if (env->type == BRE && (env->cursor == env->pattern || posixkludge == 1))
{
- env->posixkludge = 1;
+ env->posixkludge = 2;
return T_CFLX;
}
}
@@ -1069,7 +1073,7 @@ col(Celt_t* ce, int ic, unsigned char* bp, int bw, int bc, unsigned char* ep, in
if (cc > 0)
{
cc = -1;
- k += wctomb((char*)k, c);
+ k += mbconv((char*)k, c);
}
else
for (e = k + bw; k < e; *k++ = *s++);
@@ -1125,7 +1129,7 @@ col(Celt_t* ce, int ic, unsigned char* bp, int bw, int bc, unsigned char* ep, in
if (cc > 0)
{
cc = -1;
- k += wctomb((char*)k, c);
+ k += mbconv((char*)k, c);
}
else
for (e = k + ew; k < e; *k++ = *s++);
@@ -1199,10 +1203,10 @@ bra(Cenv_t* env)
inrange = 0;
for (;;)
{
- if (!(c = *env->cursor) || c == env->terminator || (env->flags & REG_ESCAPE) && c == env->delimiter)
+ if (!(c = *env->cursor) || c == env->terminator || c == env->delimiter && (env->flags & REG_ESCAPE))
goto error;
env->cursor += (w = MBSIZE(env->cursor));
- if (c == '\\')
+ if (c == '\\' && ((env->flags & REG_CLASS_ESCAPE) || env->type >= SRE && env->parnest || *env->cursor == env->delimiter && (env->flags & REG_ESCAPE)))
{
if (*env->cursor)
{
@@ -1380,18 +1384,24 @@ bra(Cenv_t* env)
complicated++;
if (inrange == 2)
{
- if (last > c)
+ if (last <= c)
+ {
+ for (i = last; i <= c; i++)
+ setadd(e->re.charclass, i);
+ inrange = env->type >= SRE || (env->flags & REG_LENIENT);
+ elements += 2;
+ }
+ else if (env->type >= SRE)
{
- if (env->type < SRE && !(env->flags & REG_LENIENT))
- goto erange;
setadd(e->re.charclass, last);
setadd(e->re.charclass, c);
+ elements += 2;
+ inrange = 1;
}
+ else if (!(env->flags & REG_LENIENT))
+ goto erange;
else
- for (i = last; i <= c; i++)
- setadd(e->re.charclass, i);
- inrange = env->type >= SRE || (env->flags & REG_LENIENT);
- elements += 2;
+ inrange = 0;
}
else if (inrange == 1)
{
@@ -1465,7 +1475,7 @@ bra(Cenv_t* env)
goto error;
pp = env->cursor;
env->cursor += (w = MBSIZE(env->cursor));
- if (c == '\\')
+ if (c == '\\' && ((env->flags & REG_CLASS_ESCAPE) || env->type >= SRE && env->parnest || *env->cursor == env->delimiter && (env->flags & REG_ESCAPE)))
{
if (*env->cursor)
{
@@ -1497,7 +1507,7 @@ bra(Cenv_t* env)
if (env->token.len > 1 || w >= 0 && w < T_META)
{
c = w;
- w = wctomb(mbc, c);
+ w = mbconv(mbc, c);
pp = (unsigned char*)mbc;
env->cursor += env->token.len;
}
@@ -1597,7 +1607,7 @@ bra(Cenv_t* env)
if (iswupper(wc))
{
wc = towlower(wc);
- rw = wctomb((char*)pp, wc);
+ rw = mbconv((char*)pp, wc);
c = 'u';
}
else if (iswlower(wc))
@@ -1635,7 +1645,7 @@ bra(Cenv_t* env)
wc = towupper(wc);
c = 'U';
}
- rw = wctomb((char*)pp, wc);
+ rw = mbconv((char*)pp, wc);
}
inrange = 0;
c = *pp;
@@ -2048,6 +2058,7 @@ grp(Cenv_t* env, int parno)
case 'M': /* glob(3) */
case 'N': /* glob(3) */
case 'O': /* glob(3) */
+ case 'P':
case 'R': /* pcre */
case 'S':
case 'U': /* pcre */
@@ -2138,28 +2149,28 @@ grp(Cenv_t* env, int parno)
env->flags &= ~REG_COMMENT;
break;
case 'A':
- env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT);
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
env->flags |= REG_AUGMENTED|REG_EXTENDED;
typ = ARE;
break;
case 'B':
case 'G':
- env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT);
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
typ = BRE;
break;
case 'E':
- env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT);
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
env->flags |= REG_EXTENDED;
typ = ERE;
break;
case 'F':
case 'L':
- env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT);
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
env->flags |= REG_LITERAL;
typ = ERE;
break;
case 'K':
- env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT);
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
env->flags |= REG_AUGMENTED|REG_SHELL|REG_LEFT|REG_RIGHT;
typ = KRE;
break;
@@ -2172,8 +2183,13 @@ grp(Cenv_t* env, int parno)
case 'O':
/* used by caller to disable glob(3) GLOB_STARSTAR */
break;
+ case 'P':
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
+ env->flags |= REG_EXTENDED|REG_CLASS_ESCAPE;
+ typ = ERE;
+ break;
case 'S':
- env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT);
+ env->flags &= ~(REG_AUGMENTED|REG_EXTENDED|REG_LITERAL|REG_SHELL|REG_LEFT|REG_RIGHT|REG_CLASS_ESCAPE);
env->flags |= REG_SHELL|REG_LEFT|REG_RIGHT;
typ = SRE;
break;
@@ -2549,7 +2565,7 @@ seq(Cenv_t* env)
c = towupper(c);
if ((&buf[sizeof(buf)] - s) < MB_CUR_MAX)
break;
- if ((n = wctomb((char*)s, c)) < 0)
+ if ((n = mbconv((char*)s, c)) < 0)
*s++ = c;
else if (n)
s += n;
@@ -3004,7 +3020,7 @@ special(Cenv_t* env, regex_t* p)
a->re.bm.back = (y == e || y == e->re.group.expr.rex) ? (m - n) : -1;
a->re.bm.left = l - 1;
a->re.bm.right = env->stats.m - l - n;
- a->re.bm.complete = (y != e && (e->type != REX_GROUP || y != e->re.group.expr.rex) || e->next || ((a->re.bm.left + a->re.bm.right) >= 0)) ? 0 : n;
+ a->re.bm.complete = (env->stats.e || y != e && (e->type != REX_GROUP || y != e->re.group.expr.rex) || e->next || ((a->re.bm.left + a->re.bm.right) >= 0)) ? 0 : n;
h = (Bm_mask_t*)&a->re.bm.mask[n];
a->re.bm.skip = (size_t*)(h + n * (UCHAR_MAX + 1));
a->re.bm.fail = &a->re.bm.skip[UCHAR_MAX + 1];
@@ -3394,6 +3410,7 @@ regcomb(regex_t* p, regex_t* q)
Rex_t* e = p->env->rex;
Rex_t* f = q->env->rex;
Rex_t* g;
+ Rex_t* h;
Cenv_t env;
if (!e || !f)
@@ -3428,13 +3445,15 @@ regcomb(regex_t* p, regex_t* q)
drop(env.disc, f);
f = q->env->rex;
}
- if (e->next && e->next->type == REX_END && f->next && f->next->type == REX_END)
+ for (g = e; g->next; g = g->next);
+ for (h = f; h->next; h = h->next);
+ if (g->next && g->next->type == REX_END && h->next && h->next->type == REX_END)
{
p->env->flags |= REG_RIGHT;
- drop(env.disc, e->next);
- e->next = 0;
- drop(env.disc, f->next);
- f->next = 0;
+ drop(env.disc, g->next);
+ g->next = 0;
+ drop(env.disc, h->next);
+ h->next = 0;
}
if (!(g = trie(&env, f, e)))
return fatal(p->env->disc, REG_BADPAT, NiL);
generated by cgit v1.2.3 (git 2.39.1) at 2025-06-15 01:59:40 +0000