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author | Paul Eggert <eggert@cs.ucla.edu> | 2006-08-21 07:26:38 +0000 |
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committer | Paul Eggert <eggert@cs.ucla.edu> | 2006-08-21 07:26:38 +0000 |
commit | 0f7a044109b860443ecaa4f8a37652b1b4423057 (patch) | |
tree | b5834ed9867213221a2636e0fa7e8da178749a76 /lib/fnmatch_loop.c | |
parent | 11fd62b0080ce376b26241bd789b7e7390befef6 (diff) | |
download | coreutils-0f7a044109b860443ecaa4f8a37652b1b4423057.tar.xz |
Remove from CVS, since the bootstrap script generates them automatically.
Diffstat (limited to 'lib/fnmatch_loop.c')
-rw-r--r-- | lib/fnmatch_loop.c | 1192 |
1 files changed, 0 insertions, 1192 deletions
diff --git a/lib/fnmatch_loop.c b/lib/fnmatch_loop.c deleted file mode 100644 index 308d311f9..000000000 --- a/lib/fnmatch_loop.c +++ /dev/null @@ -1,1192 +0,0 @@ -/* Copyright (C) 1991,1992,1993,1996,1997,1998,1999,2000,2001,2002,2003,2004,2005,2006 - Free Software Foundation, Inc. - - 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 2, 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, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -/* 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. */ - 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; - - if (c == fn) - goto matched; - } - 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 - equivalance class value. */ - int len = weights[idx]; - int32_t idx2; - const UCHAR *np = (const UCHAR *) n; - - idx2 = findidx (&np); - if (idx2 != 0 && len == weights[idx2]) - { - int cnt = 0; - - 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) loses. */ - return FNM_NOMATCH; - 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; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* 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; - } - - 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; - - 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; - second = hash % (table_size - 2); - while (symb_table[2 * elem] != 0) - { - /* 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; - } - - 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 + 1); \ - 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 STRCOLL -#undef STRLEN -#undef STRCAT -#undef L_ -#undef BTOWC |