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Unified Diff: gdb/gnulib/import/fnmatch_loop.c

Issue 11969036: Merge GDB 7.5.1 (Closed) Base URL: http://git.chromium.org/native_client/nacl-gdb.git@master
Patch Set: Created 7 years, 11 months ago
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Index: gdb/gnulib/import/fnmatch_loop.c
diff --git a/gdb/gnulib/import/fnmatch_loop.c b/gdb/gnulib/import/fnmatch_loop.c
new file mode 100644
index 0000000000000000000000000000000000000000..048079e11ff1a58444235ae9b2dd6fa8ad813dbf
--- /dev/null
+++ b/gdb/gnulib/import/fnmatch_loop.c
@@ -0,0 +1,1219 @@
+/* Copyright (C) 1991-1993, 1996-2006, 2009-2012 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, see <http://www.gnu.org/licenses/>. */
+
+/* Match STRING against the file name pattern PATTERN, returning zero if
+ it matches, nonzero if not. */
+static int EXT (INT opt, const CHAR *pattern, const CHAR *string,
+ const CHAR *string_end, bool no_leading_period, int flags)
+ internal_function;
+static const CHAR *END (const CHAR *patternp) internal_function;
+
+static int
+internal_function
+FCT (const CHAR *pattern, const CHAR *string, const CHAR *string_end,
+ bool no_leading_period, int flags)
+{
+ register const CHAR *p = pattern, *n = string;
+ register UCHAR c;
+#ifdef _LIBC
+# if WIDE_CHAR_VERSION
+ const char *collseq = (const char *)
+ _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQWC);
+# else
+ const UCHAR *collseq = (const UCHAR *)
+ _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQMB);
+# endif
+#endif
+
+ while ((c = *p++) != L_('\0'))
+ {
+ bool new_no_leading_period = false;
+ c = FOLD (c);
+
+ switch (c)
+ {
+ case L_('?'):
+ if (__builtin_expect (flags & FNM_EXTMATCH, 0) && *p == '(')
+ {
+ int res;
+
+ res = EXT (c, p, n, string_end, no_leading_period,
+ flags);
+ if (res != -1)
+ return res;
+ }
+
+ if (n == string_end)
+ return FNM_NOMATCH;
+ else if (*n == L_('/') && (flags & FNM_FILE_NAME))
+ return FNM_NOMATCH;
+ else if (*n == L_('.') && no_leading_period)
+ return FNM_NOMATCH;
+ break;
+
+ case L_('\\'):
+ if (!(flags & FNM_NOESCAPE))
+ {
+ c = *p++;
+ if (c == L_('\0'))
+ /* Trailing \ loses. */
+ return FNM_NOMATCH;
+ c = FOLD (c);
+ }
+ if (n == string_end || FOLD ((UCHAR) *n) != c)
+ return FNM_NOMATCH;
+ break;
+
+ case L_('*'):
+ if (__builtin_expect (flags & FNM_EXTMATCH, 0) && *p == '(')
+ {
+ int res;
+
+ res = EXT (c, p, n, string_end, no_leading_period,
+ flags);
+ if (res != -1)
+ return res;
+ }
+
+ if (n != string_end && *n == L_('.') && no_leading_period)
+ return FNM_NOMATCH;
+
+ for (c = *p++; c == L_('?') || c == L_('*'); c = *p++)
+ {
+ if (*p == L_('(') && (flags & FNM_EXTMATCH) != 0)
+ {
+ const CHAR *endp = END (p);
+ if (endp != p)
+ {
+ /* This is a pattern. Skip over it. */
+ p = endp;
+ continue;
+ }
+ }
+
+ if (c == L_('?'))
+ {
+ /* A ? needs to match one character. */
+ if (n == string_end)
+ /* There isn't another character; no match. */
+ return FNM_NOMATCH;
+ else if (*n == L_('/')
+ && __builtin_expect (flags & FNM_FILE_NAME, 0))
+ /* A slash does not match a wildcard under
+ FNM_FILE_NAME. */
+ return FNM_NOMATCH;
+ else
+ /* One character of the string is consumed in matching
+ this ? wildcard, so *??? won't match if there are
+ less than three characters. */
+ ++n;
+ }
+ }
+
+ if (c == L_('\0'))
+ /* The wildcard(s) is/are the last element of the pattern.
+ If the name is a file name and contains another slash
+ this means it cannot match, unless the FNM_LEADING_DIR
+ flag is set. */
+ {
+ int result = (flags & FNM_FILE_NAME) == 0 ? 0 : FNM_NOMATCH;
+
+ if (flags & FNM_FILE_NAME)
+ {
+ if (flags & FNM_LEADING_DIR)
+ result = 0;
+ else
+ {
+ if (MEMCHR (n, L_('/'), string_end - n) == NULL)
+ result = 0;
+ }
+ }
+
+ return result;
+ }
+ else
+ {
+ const CHAR *endp;
+
+ endp = MEMCHR (n, (flags & FNM_FILE_NAME) ? L_('/') : L_('\0'),
+ string_end - n);
+ if (endp == NULL)
+ endp = string_end;
+
+ if (c == L_('[')
+ || (__builtin_expect (flags & FNM_EXTMATCH, 0) != 0
+ && (c == L_('@') || c == L_('+') || c == L_('!'))
+ && *p == L_('(')))
+ {
+ int flags2 = ((flags & FNM_FILE_NAME)
+ ? flags : (flags & ~FNM_PERIOD));
+ bool no_leading_period2 = no_leading_period;
+
+ for (--p; n < endp; ++n, no_leading_period2 = false)
+ if (FCT (p, n, string_end, no_leading_period2, flags2)
+ == 0)
+ return 0;
+ }
+ else if (c == L_('/') && (flags & FNM_FILE_NAME))
+ {
+ while (n < string_end && *n != L_('/'))
+ ++n;
+ if (n < string_end && *n == L_('/')
+ && (FCT (p, n + 1, string_end, flags & FNM_PERIOD, flags)
+ == 0))
+ return 0;
+ }
+ else
+ {
+ int flags2 = ((flags & FNM_FILE_NAME)
+ ? flags : (flags & ~FNM_PERIOD));
+ int no_leading_period2 = no_leading_period;
+
+ if (c == L_('\\') && !(flags & FNM_NOESCAPE))
+ c = *p;
+ c = FOLD (c);
+ for (--p; n < endp; ++n, no_leading_period2 = false)
+ if (FOLD ((UCHAR) *n) == c
+ && (FCT (p, n, string_end, no_leading_period2, flags2)
+ == 0))
+ return 0;
+ }
+ }
+
+ /* If we come here no match is possible with the wildcard. */
+ return FNM_NOMATCH;
+
+ case L_('['):
+ {
+ /* Nonzero if the sense of the character class is inverted. */
+ const CHAR *p_init = p;
+ const CHAR *n_init = n;
+ register bool not;
+ CHAR cold;
+ UCHAR fn;
+
+ if (posixly_correct == 0)
+ posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
+
+ if (n == string_end)
+ return FNM_NOMATCH;
+
+ if (*n == L_('.') && no_leading_period)
+ return FNM_NOMATCH;
+
+ if (*n == L_('/') && (flags & FNM_FILE_NAME))
+ /* '/' cannot be matched. */
+ return FNM_NOMATCH;
+
+ not = (*p == L_('!') || (posixly_correct < 0 && *p == L_('^')));
+ if (not)
+ ++p;
+
+ fn = FOLD ((UCHAR) *n);
+
+ c = *p++;
+ for (;;)
+ {
+ if (!(flags & FNM_NOESCAPE) && c == L_('\\'))
+ {
+ if (*p == L_('\0'))
+ return FNM_NOMATCH;
+ c = FOLD ((UCHAR) *p);
+ ++p;
+
+ goto normal_bracket;
+ }
+ else if (c == L_('[') && *p == L_(':'))
+ {
+ /* Leave room for the null. */
+ CHAR str[CHAR_CLASS_MAX_LENGTH + 1];
+ size_t c1 = 0;
+#if defined _LIBC || WIDE_CHAR_SUPPORT
+ wctype_t wt;
+#endif
+ const CHAR *startp = p;
+
+ for (;;)
+ {
+ if (c1 == CHAR_CLASS_MAX_LENGTH)
+ /* The name is too long and therefore the pattern
+ is ill-formed. */
+ return FNM_NOMATCH;
+
+ c = *++p;
+ if (c == L_(':') && p[1] == L_(']'))
+ {
+ p += 2;
+ break;
+ }
+ if (c < L_('a') || c >= L_('z'))
+ {
+ /* This cannot possibly be a character class name.
+ Match it as a normal range. */
+ p = startp;
+ c = L_('[');
+ goto normal_bracket;
+ }
+ str[c1++] = c;
+ }
+ str[c1] = L_('\0');
+
+#if defined _LIBC || WIDE_CHAR_SUPPORT
+ wt = IS_CHAR_CLASS (str);
+ if (wt == 0)
+ /* Invalid character class name. */
+ return FNM_NOMATCH;
+
+# if defined _LIBC && ! WIDE_CHAR_VERSION
+ /* The following code is glibc specific but does
+ there a good job in speeding up the code since
+ we can avoid the btowc() call. */
+ if (_ISCTYPE ((UCHAR) *n, wt))
+ goto matched;
+# else
+ if (ISWCTYPE (BTOWC ((UCHAR) *n), wt))
+ goto matched;
+# endif
+#else
+ if ((STREQ (str, L_("alnum")) && isalnum ((UCHAR) *n))
+ || (STREQ (str, L_("alpha")) && isalpha ((UCHAR) *n))
+ || (STREQ (str, L_("blank")) && isblank ((UCHAR) *n))
+ || (STREQ (str, L_("cntrl")) && iscntrl ((UCHAR) *n))
+ || (STREQ (str, L_("digit")) && isdigit ((UCHAR) *n))
+ || (STREQ (str, L_("graph")) && isgraph ((UCHAR) *n))
+ || (STREQ (str, L_("lower")) && islower ((UCHAR) *n))
+ || (STREQ (str, L_("print")) && isprint ((UCHAR) *n))
+ || (STREQ (str, L_("punct")) && ispunct ((UCHAR) *n))
+ || (STREQ (str, L_("space")) && isspace ((UCHAR) *n))
+ || (STREQ (str, L_("upper")) && isupper ((UCHAR) *n))
+ || (STREQ (str, L_("xdigit")) && isxdigit ((UCHAR) *n)))
+ goto matched;
+#endif
+ c = *p++;
+ }
+#ifdef _LIBC
+ else if (c == L_('[') && *p == L_('='))
+ {
+ UCHAR str[1];
+ uint32_t nrules =
+ _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+ const CHAR *startp = p;
+
+ c = *++p;
+ if (c == L_('\0'))
+ {
+ p = startp;
+ c = L_('[');
+ goto normal_bracket;
+ }
+ str[0] = c;
+
+ c = *++p;
+ if (c != L_('=') || p[1] != L_(']'))
+ {
+ p = startp;
+ c = L_('[');
+ goto normal_bracket;
+ }
+ p += 2;
+
+ if (nrules == 0)
+ {
+ if ((UCHAR) *n == str[0])
+ goto matched;
+ }
+ else
+ {
+ const int32_t *table;
+# if WIDE_CHAR_VERSION
+ const int32_t *weights;
+ const int32_t *extra;
+# else
+ const unsigned char *weights;
+ const unsigned char *extra;
+# endif
+ const int32_t *indirect;
+ int32_t idx;
+ const UCHAR *cp = (const UCHAR *) str;
+
+ /* This #include defines a local function! */
+# if WIDE_CHAR_VERSION
+# include <locale/weightwc.h>
+# else
+# include <locale/weight.h>
+# endif
+
+# if WIDE_CHAR_VERSION
+ table = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEWC);
+ weights = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTWC);
+ extra = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAWC);
+ indirect = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTWC);
+# else
+ table = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEMB);
+ weights = (const unsigned char *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTMB);
+ extra = (const unsigned char *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAMB);
+ indirect = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTMB);
+# endif
+
+ idx = findidx (&cp);
+ if (idx != 0)
+ {
+ /* We found a table entry. Now see whether the
+ character we are currently at has the same
+ equivalence class value. */
+ int len = weights[idx & 0xffffff];
+ int32_t idx2;
+ const UCHAR *np = (const UCHAR *) n;
+
+ idx2 = findidx (&np);
+ if (idx2 != 0
+ && (idx >> 24) == (idx2 >> 24)
+ && len == weights[idx2 & 0xffffff])
+ {
+ int cnt = 0;
+
+ idx &= 0xffffff;
+ idx2 &= 0xffffff;
+
+ while (cnt < len
+ && (weights[idx + 1 + cnt]
+ == weights[idx2 + 1 + cnt]))
+ ++cnt;
+
+ if (cnt == len)
+ goto matched;
+ }
+ }
+ }
+
+ c = *p++;
+ }
+#endif
+ else if (c == L_('\0'))
+ {
+ /* [ unterminated, treat as normal character. */
+ p = p_init;
+ n = n_init;
+ c = L_('[');
+ goto normal_match;
+ }
+ else
+ {
+ bool is_range = false;
+
+#ifdef _LIBC
+ bool is_seqval = false;
+
+ if (c == L_('[') && *p == L_('.'))
+ {
+ uint32_t nrules =
+ _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+ const CHAR *startp = p;
+ size_t c1 = 0;
+
+ while (1)
+ {
+ c = *++p;
+ if (c == L_('.') && p[1] == L_(']'))
+ {
+ p += 2;
+ break;
+ }
+ if (c == '\0')
+ return FNM_NOMATCH;
+ ++c1;
+ }
+
+ /* We have to handling the symbols differently in
+ ranges since then the collation sequence is
+ important. */
+ is_range = *p == L_('-') && p[1] != L_('\0');
+
+ if (nrules == 0)
+ {
+ /* There are no names defined in the collation
+ data. Therefore we only accept the trivial
+ names consisting of the character itself. */
+ if (c1 != 1)
+ return FNM_NOMATCH;
+
+ if (!is_range && *n == startp[1])
+ goto matched;
+
+ cold = startp[1];
+ c = *p++;
+ }
+ else
+ {
+ int32_t table_size;
+ const int32_t *symb_table;
+# ifdef WIDE_CHAR_VERSION
+ char str[c1];
+ size_t strcnt;
+# else
+# define str (startp + 1)
+# endif
+ const unsigned char *extra;
+ int32_t idx;
+ int32_t elem;
+ int32_t second;
+ int32_t hash;
+
+# ifdef WIDE_CHAR_VERSION
+ /* We have to convert the name to a single-byte
+ string. This is possible since the names
+ consist of ASCII characters and the internal
+ representation is UCS4. */
+ for (strcnt = 0; strcnt < c1; ++strcnt)
+ str[strcnt] = startp[1 + strcnt];
+# endif
+
+ table_size =
+ _NL_CURRENT_WORD (LC_COLLATE,
+ _NL_COLLATE_SYMB_HASH_SIZEMB);
+ symb_table = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE,
+ _NL_COLLATE_SYMB_TABLEMB);
+ extra = (const unsigned char *)
+ _NL_CURRENT (LC_COLLATE,
+ _NL_COLLATE_SYMB_EXTRAMB);
+
+ /* Locate the character in the hashing table. */
+ hash = elem_hash (str, c1);
+
+ idx = 0;
+ elem = hash % table_size;
+ if (symb_table[2 * elem] != 0)
+ {
+ second = hash % (table_size - 2) + 1;
+
+ do
+ {
+ /* First compare the hashing value. */
+ if (symb_table[2 * elem] == hash
+ && (c1
+ == extra[symb_table[2 * elem + 1]])
+ && memcmp (str,
+ &extra[symb_table[2 * elem
+ + 1]
+ + 1], c1) == 0)
+ {
+ /* Yep, this is the entry. */
+ idx = symb_table[2 * elem + 1];
+ idx += 1 + extra[idx];
+ break;
+ }
+
+ /* Next entry. */
+ elem += second;
+ }
+ while (symb_table[2 * elem] != 0);
+ }
+
+ if (symb_table[2 * elem] != 0)
+ {
+ /* Compare the byte sequence but only if
+ this is not part of a range. */
+# ifdef WIDE_CHAR_VERSION
+ int32_t *wextra;
+
+ idx += 1 + extra[idx];
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~3;
+
+ wextra = (int32_t *) &extra[idx + 4];
+# endif
+
+ if (! is_range)
+ {
+# ifdef WIDE_CHAR_VERSION
+ for (c1 = 0;
+ (int32_t) c1 < wextra[idx];
+ ++c1)
+ if (n[c1] != wextra[1 + c1])
+ break;
+
+ if ((int32_t) c1 == wextra[idx])
+ goto matched;
+# else
+ for (c1 = 0; c1 < extra[idx]; ++c1)
+ if (n[c1] != extra[1 + c1])
+ break;
+
+ if (c1 == extra[idx])
+ goto matched;
+# endif
+ }
+
+ /* Get the collation sequence value. */
+ is_seqval = true;
+# ifdef WIDE_CHAR_VERSION
+ cold = wextra[1 + wextra[idx]];
+# else
+ /* Adjust for the alignment. */
+ idx += 1 + extra[idx];
+ idx = (idx + 3) & ~4;
+ cold = *((int32_t *) &extra[idx]);
+# endif
+
+ c = *p++;
+ }
+ else if (c1 == 1)
+ {
+ /* No valid character. Match it as a
+ single byte. */
+ if (!is_range && *n == str[0])
+ goto matched;
+
+ cold = str[0];
+ c = *p++;
+ }
+ else
+ return FNM_NOMATCH;
+ }
+ }
+ else
+# undef str
+#endif
+ {
+ c = FOLD (c);
+ normal_bracket:
+
+ /* We have to handling the symbols differently in
+ ranges since then the collation sequence is
+ important. */
+ is_range = (*p == L_('-') && p[1] != L_('\0')
+ && p[1] != L_(']'));
+
+ if (!is_range && c == fn)
+ goto matched;
+
+#if _LIBC
+ /* This is needed if we goto normal_bracket; from
+ outside of is_seqval's scope. */
+ is_seqval = false;
+#endif
+
+ cold = c;
+ c = *p++;
+ }
+
+ if (c == L_('-') && *p != L_(']'))
+ {
+#if _LIBC
+ /* We have to find the collation sequence
+ value for C. Collation sequence is nothing
+ we can regularly access. The sequence
+ value is defined by the order in which the
+ definitions of the collation values for the
+ various characters appear in the source
+ file. A strange concept, nowhere
+ documented. */
+ uint32_t fcollseq;
+ uint32_t lcollseq;
+ UCHAR cend = *p++;
+
+# ifdef WIDE_CHAR_VERSION
+ /* Search in the 'names' array for the characters. */
+ fcollseq = __collseq_table_lookup (collseq, fn);
+ if (fcollseq == ~((uint32_t) 0))
+ /* XXX We don't know anything about the character
+ we are supposed to match. This means we are
+ failing. */
+ goto range_not_matched;
+
+ if (is_seqval)
+ lcollseq = cold;
+ else
+ lcollseq = __collseq_table_lookup (collseq, cold);
+# else
+ fcollseq = collseq[fn];
+ lcollseq = is_seqval ? cold : collseq[(UCHAR) cold];
+# endif
+
+ is_seqval = false;
+ if (cend == L_('[') && *p == L_('.'))
+ {
+ uint32_t nrules =
+ _NL_CURRENT_WORD (LC_COLLATE,
+ _NL_COLLATE_NRULES);
+ const CHAR *startp = p;
+ size_t c1 = 0;
+
+ while (1)
+ {
+ c = *++p;
+ if (c == L_('.') && p[1] == L_(']'))
+ {
+ p += 2;
+ break;
+ }
+ if (c == '\0')
+ return FNM_NOMATCH;
+ ++c1;
+ }
+
+ if (nrules == 0)
+ {
+ /* There are no names defined in the
+ collation data. Therefore we only
+ accept the trivial names consisting
+ of the character itself. */
+ if (c1 != 1)
+ return FNM_NOMATCH;
+
+ cend = startp[1];
+ }
+ else
+ {
+ int32_t table_size;
+ const int32_t *symb_table;
+# ifdef WIDE_CHAR_VERSION
+ char str[c1];
+ size_t strcnt;
+# else
+# define str (startp + 1)
+# endif
+ const unsigned char *extra;
+ int32_t idx;
+ int32_t elem;
+ int32_t second;
+ int32_t hash;
+
+# ifdef WIDE_CHAR_VERSION
+ /* We have to convert the name to a single-byte
+ string. This is possible since the names
+ consist of ASCII characters and the internal
+ representation is UCS4. */
+ for (strcnt = 0; strcnt < c1; ++strcnt)
+ str[strcnt] = startp[1 + strcnt];
+# endif
+
+ table_size =
+ _NL_CURRENT_WORD (LC_COLLATE,
+ _NL_COLLATE_SYMB_HASH_SIZEMB);
+ symb_table = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE,
+ _NL_COLLATE_SYMB_TABLEMB);
+ extra = (const unsigned char *)
+ _NL_CURRENT (LC_COLLATE,
+ _NL_COLLATE_SYMB_EXTRAMB);
+
+ /* Locate the character in the hashing
+ table. */
+ hash = elem_hash (str, c1);
+
+ idx = 0;
+ elem = hash % table_size;
+ if (symb_table[2 * elem] != 0)
+ {
+ second = hash % (table_size - 2) + 1;
+
+ do
+ {
+ /* First compare the hashing value. */
+ if (symb_table[2 * elem] == hash
+ && (c1
+ == extra[symb_table[2 * elem + 1]])
+ && memcmp (str,
+ &extra[symb_table[2 * elem + 1]
+ + 1], c1) == 0)
+ {
+ /* Yep, this is the entry. */
+ idx = symb_table[2 * elem + 1];
+ idx += 1 + extra[idx];
+ break;
+ }
+
+ /* Next entry. */
+ elem += second;
+ }
+ while (symb_table[2 * elem] != 0);
+ }
+
+ if (symb_table[2 * elem] != 0)
+ {
+ /* Compare the byte sequence but only if
+ this is not part of a range. */
+# ifdef WIDE_CHAR_VERSION
+ int32_t *wextra;
+
+ idx += 1 + extra[idx];
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~4;
+
+ wextra = (int32_t *) &extra[idx + 4];
+# endif
+ /* Get the collation sequence value. */
+ is_seqval = true;
+# ifdef WIDE_CHAR_VERSION
+ cend = wextra[1 + wextra[idx]];
+# else
+ /* Adjust for the alignment. */
+ idx += 1 + extra[idx];
+ idx = (idx + 3) & ~4;
+ cend = *((int32_t *) &extra[idx]);
+# endif
+ }
+ else if (symb_table[2 * elem] != 0 && c1 == 1)
+ {
+ cend = str[0];
+ c = *p++;
+ }
+ else
+ return FNM_NOMATCH;
+ }
+# undef str
+ }
+ else
+ {
+ if (!(flags & FNM_NOESCAPE) && cend == L_('\\'))
+ cend = *p++;
+ if (cend == L_('\0'))
+ return FNM_NOMATCH;
+ cend = FOLD (cend);
+ }
+
+ /* XXX It is not entirely clear to me how to handle
+ characters which are not mentioned in the
+ collation specification. */
+ if (
+# ifdef WIDE_CHAR_VERSION
+ lcollseq == 0xffffffff ||
+# endif
+ lcollseq <= fcollseq)
+ {
+ /* We have to look at the upper bound. */
+ uint32_t hcollseq;
+
+ if (is_seqval)
+ hcollseq = cend;
+ else
+ {
+# ifdef WIDE_CHAR_VERSION
+ hcollseq =
+ __collseq_table_lookup (collseq, cend);
+ if (hcollseq == ~((uint32_t) 0))
+ {
+ /* Hum, no information about the upper
+ bound. The matching succeeds if the
+ lower bound is matched exactly. */
+ if (lcollseq != fcollseq)
+ goto range_not_matched;
+
+ goto matched;
+ }
+# else
+ hcollseq = collseq[cend];
+# endif
+ }
+
+ if (lcollseq <= hcollseq && fcollseq <= hcollseq)
+ goto matched;
+ }
+# ifdef WIDE_CHAR_VERSION
+ range_not_matched:
+# endif
+#else
+ /* We use a boring value comparison of the character
+ values. This is better than comparing using
+ 'strcoll' since the latter would have surprising
+ and sometimes fatal consequences. */
+ UCHAR cend = *p++;
+
+ if (!(flags & FNM_NOESCAPE) && cend == L_('\\'))
+ cend = *p++;
+ if (cend == L_('\0'))
+ return FNM_NOMATCH;
+
+ /* It is a range. */
+ if (cold <= fn && fn <= cend)
+ goto matched;
+#endif
+
+ c = *p++;
+ }
+ }
+
+ if (c == L_(']'))
+ break;
+ }
+
+ if (!not)
+ return FNM_NOMATCH;
+ break;
+
+ matched:
+ /* Skip the rest of the [...] that already matched. */
+ do
+ {
+ ignore_next:
+ c = *p++;
+
+ if (c == L_('\0'))
+ /* [... (unterminated) loses. */
+ return FNM_NOMATCH;
+
+ if (!(flags & FNM_NOESCAPE) && c == L_('\\'))
+ {
+ if (*p == L_('\0'))
+ return FNM_NOMATCH;
+ /* XXX 1003.2d11 is unclear if this is right. */
+ ++p;
+ }
+ else if (c == L_('[') && *p == L_(':'))
+ {
+ int c1 = 0;
+ const CHAR *startp = p;
+
+ while (1)
+ {
+ c = *++p;
+ if (++c1 == CHAR_CLASS_MAX_LENGTH)
+ return FNM_NOMATCH;
+
+ if (*p == L_(':') && p[1] == L_(']'))
+ break;
+
+ if (c < L_('a') || c >= L_('z'))
+ {
+ p = startp;
+ goto ignore_next;
+ }
+ }
+ p += 2;
+ c = *p++;
+ }
+ else if (c == L_('[') && *p == L_('='))
+ {
+ c = *++p;
+ if (c == L_('\0'))
+ return FNM_NOMATCH;
+ c = *++p;
+ if (c != L_('=') || p[1] != L_(']'))
+ return FNM_NOMATCH;
+ p += 2;
+ c = *p++;
+ }
+ else if (c == L_('[') && *p == L_('.'))
+ {
+ ++p;
+ while (1)
+ {
+ c = *++p;
+ if (c == '\0')
+ return FNM_NOMATCH;
+
+ if (*p == L_('.') && p[1] == L_(']'))
+ break;
+ }
+ p += 2;
+ c = *p++;
+ }
+ }
+ while (c != L_(']'));
+ if (not)
+ return FNM_NOMATCH;
+ }
+ break;
+
+ case L_('+'):
+ case L_('@'):
+ case L_('!'):
+ if (__builtin_expect (flags & FNM_EXTMATCH, 0) && *p == '(')
+ {
+ int res;
+
+ res = EXT (c, p, n, string_end, no_leading_period, flags);
+ if (res != -1)
+ return res;
+ }
+ goto normal_match;
+
+ case L_('/'):
+ if (NO_LEADING_PERIOD (flags))
+ {
+ if (n == string_end || c != (UCHAR) *n)
+ return FNM_NOMATCH;
+
+ new_no_leading_period = true;
+ break;
+ }
+ /* FALLTHROUGH */
+ default:
+ normal_match:
+ if (n == string_end || c != FOLD ((UCHAR) *n))
+ return FNM_NOMATCH;
+ }
+
+ no_leading_period = new_no_leading_period;
+ ++n;
+ }
+
+ if (n == string_end)
+ return 0;
+
+ if ((flags & FNM_LEADING_DIR) && n != string_end && *n == L_('/'))
+ /* The FNM_LEADING_DIR flag says that "foo*" matches "foobar/frobozz". */
+ return 0;
+
+ return FNM_NOMATCH;
+}
+
+
+static const CHAR *
+internal_function
+END (const CHAR *pattern)
+{
+ const CHAR *p = pattern;
+
+ while (1)
+ if (*++p == L_('\0'))
+ /* This is an invalid pattern. */
+ return pattern;
+ else if (*p == L_('['))
+ {
+ /* Handle brackets special. */
+ if (posixly_correct == 0)
+ posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
+
+ /* Skip the not sign. We have to recognize it because of a possibly
+ following ']'. */
+ if (*++p == L_('!') || (posixly_correct < 0 && *p == L_('^')))
+ ++p;
+ /* A leading ']' is recognized as such. */
+ if (*p == L_(']'))
+ ++p;
+ /* Skip over all characters of the list. */
+ while (*p != L_(']'))
+ if (*p++ == L_('\0'))
+ /* This is no valid pattern. */
+ return pattern;
+ }
+ else if ((*p == L_('?') || *p == L_('*') || *p == L_('+') || *p == L_('@')
+ || *p == L_('!')) && p[1] == L_('('))
+ p = END (p + 1);
+ else if (*p == L_(')'))
+ break;
+
+ return p + 1;
+}
+
+
+static int
+internal_function
+EXT (INT opt, const CHAR *pattern, const CHAR *string, const CHAR *string_end,
+ bool no_leading_period, int flags)
+{
+ const CHAR *startp;
+ size_t level;
+ struct patternlist
+ {
+ struct patternlist *next;
+ CHAR str[1];
+ } *list = NULL;
+ struct patternlist **lastp = &list;
+ size_t pattern_len = STRLEN (pattern);
+ const CHAR *p;
+ const CHAR *rs;
+ enum { ALLOCA_LIMIT = 8000 };
+
+ /* Parse the pattern. Store the individual parts in the list. */
+ level = 0;
+ for (startp = p = pattern + 1; ; ++p)
+ if (*p == L_('\0'))
+ /* This is an invalid pattern. */
+ return -1;
+ else if (*p == L_('['))
+ {
+ /* Handle brackets special. */
+ if (posixly_correct == 0)
+ posixly_correct = getenv ("POSIXLY_CORRECT") != NULL ? 1 : -1;
+
+ /* Skip the not sign. We have to recognize it because of a possibly
+ following ']'. */
+ if (*++p == L_('!') || (posixly_correct < 0 && *p == L_('^')))
+ ++p;
+ /* A leading ']' is recognized as such. */
+ if (*p == L_(']'))
+ ++p;
+ /* Skip over all characters of the list. */
+ while (*p != L_(']'))
+ if (*p++ == L_('\0'))
+ /* This is no valid pattern. */
+ return -1;
+ }
+ else if ((*p == L_('?') || *p == L_('*') || *p == L_('+') || *p == L_('@')
+ || *p == L_('!')) && p[1] == L_('('))
+ /* Remember the nesting level. */
+ ++level;
+ else if (*p == L_(')'))
+ {
+ if (level-- == 0)
+ {
+ /* This means we found the end of the pattern. */
+#define NEW_PATTERN \
+ struct patternlist *newp; \
+ size_t plen; \
+ size_t plensize; \
+ size_t newpsize; \
+ \
+ plen = (opt == L_('?') || opt == L_('@') \
+ ? pattern_len \
+ : p - startp + 1UL); \
+ plensize = plen * sizeof (CHAR); \
+ newpsize = offsetof (struct patternlist, str) + plensize; \
+ if ((size_t) -1 / sizeof (CHAR) < plen \
+ || newpsize < offsetof (struct patternlist, str) \
+ || ALLOCA_LIMIT <= newpsize) \
+ return -1; \
+ newp = (struct patternlist *) alloca (newpsize); \
+ *((CHAR *) MEMPCPY (newp->str, startp, p - startp)) = L_('\0'); \
+ newp->next = NULL; \
+ *lastp = newp; \
+ lastp = &newp->next
+ NEW_PATTERN;
+ break;
+ }
+ }
+ else if (*p == L_('|'))
+ {
+ if (level == 0)
+ {
+ NEW_PATTERN;
+ startp = p + 1;
+ }
+ }
+ assert (list != NULL);
+ assert (p[-1] == L_(')'));
+#undef NEW_PATTERN
+
+ switch (opt)
+ {
+ case L_('*'):
+ if (FCT (p, string, string_end, no_leading_period, flags) == 0)
+ return 0;
+ /* FALLTHROUGH */
+
+ case L_('+'):
+ do
+ {
+ for (rs = string; rs <= string_end; ++rs)
+ /* First match the prefix with the current pattern with the
+ current pattern. */
+ if (FCT (list->str, string, rs, no_leading_period,
+ flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) == 0
+ /* This was successful. Now match the rest with the rest
+ of the pattern. */
+ && (FCT (p, rs, string_end,
+ rs == string
+ ? no_leading_period
+ : rs[-1] == '/' && NO_LEADING_PERIOD (flags),
+ flags & FNM_FILE_NAME
+ ? flags : flags & ~FNM_PERIOD) == 0
+ /* This didn't work. Try the whole pattern. */
+ || (rs != string
+ && FCT (pattern - 1, rs, string_end,
+ rs == string
+ ? no_leading_period
+ : rs[-1] == '/' && NO_LEADING_PERIOD (flags),
+ flags & FNM_FILE_NAME
+ ? flags : flags & ~FNM_PERIOD) == 0)))
+ /* It worked. Signal success. */
+ return 0;
+ }
+ while ((list = list->next) != NULL);
+
+ /* None of the patterns lead to a match. */
+ return FNM_NOMATCH;
+
+ case L_('?'):
+ if (FCT (p, string, string_end, no_leading_period, flags) == 0)
+ return 0;
+ /* FALLTHROUGH */
+
+ case L_('@'):
+ do
+ /* I cannot believe it but 'strcat' is actually acceptable
+ here. Match the entire string with the prefix from the
+ pattern list and the rest of the pattern following the
+ pattern list. */
+ if (FCT (STRCAT (list->str, p), string, string_end,
+ no_leading_period,
+ flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) == 0)
+ /* It worked. Signal success. */
+ return 0;
+ while ((list = list->next) != NULL);
+
+ /* None of the patterns lead to a match. */
+ return FNM_NOMATCH;
+
+ case L_('!'):
+ for (rs = string; rs <= string_end; ++rs)
+ {
+ struct patternlist *runp;
+
+ for (runp = list; runp != NULL; runp = runp->next)
+ if (FCT (runp->str, string, rs, no_leading_period,
+ flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD) == 0)
+ break;
+
+ /* If none of the patterns matched see whether the rest does. */
+ if (runp == NULL
+ && (FCT (p, rs, string_end,
+ rs == string
+ ? no_leading_period
+ : rs[-1] == '/' && NO_LEADING_PERIOD (flags),
+ flags & FNM_FILE_NAME ? flags : flags & ~FNM_PERIOD)
+ == 0))
+ /* This is successful. */
+ return 0;
+ }
+
+ /* None of the patterns together with the rest of the pattern
+ lead to a match. */
+ return FNM_NOMATCH;
+
+ default:
+ assert (! "Invalid extended matching operator");
+ break;
+ }
+
+ return -1;
+}
+
+
+#undef FOLD
+#undef CHAR
+#undef UCHAR
+#undef INT
+#undef FCT
+#undef EXT
+#undef END
+#undef MEMPCPY
+#undef MEMCHR
+#undef STRLEN
+#undef STRCAT
+#undef L_
+#undef BTOWC
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