version 0.12.
(Implements POSIX draft P1003.2/D11.2, except for some of the
internationalization features.)
- Copyright (C) 1993, 94, 95, 96, 97, 98 Free Software Foundation, Inc.
+ Copyright (C) 1993-1999, 2000, 2001 Free Software Foundation, Inc.
- NOTE: The canonical source of this file is maintained with the GNU C Library.
- Bugs can be reported to bug-glibc@prep.ai.mit.edu.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public License as
+ published by the Free Software Foundation; either version 2 of the
+ License, or (at your option) any later version.
- 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,
+ The GNU C Library 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.
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
- USA. */
+ You should have received a copy of the GNU Library General Public
+ License along with the GNU C Library; see the file COPYING.LIB. If not,
+ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA. */
/* AIX requires this to be the first thing in the file. */
#if defined _AIX && !defined REGEX_MALLOC
# include <sys/types.h>
#endif
-#define WIDE_CHAR_SUPPORT \
- defined _LIBC || (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC)
+#define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC)
/* For platform which support the ISO C amendement 1 functionality we
support user defined character classes. */
-#if WIDE_CHAR_SUPPORT
+#if defined _LIBC || WIDE_CHAR_SUPPORT
+/* Solaris 2.5 has a bug: <wchar.h> must be included before <wctype.h>. */
# include <wchar.h>
# include <wctype.h>
#endif
+/* This is for multi byte string support. */
+#ifdef MBS_SUPPORT
+# define CHAR_TYPE wchar_t
+# define US_CHAR_TYPE wchar_t/* unsigned character type */
+# define COMPILED_BUFFER_VAR wc_buffer
+# define OFFSET_ADDRESS_SIZE 1 /* the size which STORE_NUMBER macro use */
+# define CHAR_CLASS_SIZE ((__alignof__(wctype_t)+sizeof(wctype_t))/sizeof(CHAR_TYPE)+1)
+# define PUT_CHAR(c) \
+ do { \
+ if (MB_CUR_MAX == 1) \
+ putchar (c); \
+ else \
+ printf ("%C", (wint_t) c); /* Should we use wide stream?? */ \
+ } while (0)
+# define TRUE 1
+# define FALSE 0
+#else
+# define CHAR_TYPE char
+# define US_CHAR_TYPE unsigned char /* unsigned character type */
+# define COMPILED_BUFFER_VAR bufp->buffer
+# define OFFSET_ADDRESS_SIZE 2
+# define PUT_CHAR(c) putchar (c)
+#endif /* MBS_SUPPORT */
+
+#ifdef _LIBC
+/* We have to keep the namespace clean. */
+# define regfree(preg) __regfree (preg)
+# define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef)
+# define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags)
+# define regerror(errcode, preg, errbuf, errbuf_size) \
+ __regerror(errcode, preg, errbuf, errbuf_size)
+# define re_set_registers(bu, re, nu, st, en) \
+ __re_set_registers (bu, re, nu, st, en)
+# define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \
+ __re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
+# define re_match(bufp, string, size, pos, regs) \
+ __re_match (bufp, string, size, pos, regs)
+# define re_search(bufp, string, size, startpos, range, regs) \
+ __re_search (bufp, string, size, startpos, range, regs)
+# define re_compile_pattern(pattern, length, bufp) \
+ __re_compile_pattern (pattern, length, bufp)
+# define re_set_syntax(syntax) __re_set_syntax (syntax)
+# define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \
+ __re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop)
+# define re_compile_fastmap(bufp) __re_compile_fastmap (bufp)
+
+# define btowc __btowc
+
+/* We are also using some library internals. */
+# include <locale/localeinfo.h>
+# include <locale/elem-hash.h>
+# include <langinfo.h>
+# include <locale/coll-lookup.h>
+#endif
+
/* This is for other GNU distributions with internationalized messages. */
#if HAVE_LIBINTL_H || defined _LIBC
# include <libintl.h>
+# ifdef _LIBC
+# undef gettext
+# define gettext(msgid) __dcgettext ("libc", msgid, LC_MESSAGES)
+# endif
#else
# define gettext(msgid) (msgid)
#endif
# ifndef INHIBIT_STRING_HEADER
# if defined HAVE_STRING_H || defined STDC_HEADERS || defined _LIBC
# include <string.h>
-# if !defined bzero && !defined _LIBC
-# define bzero(s, n) (memset (s, '\0', n), (s))
+# ifndef bzero
+# ifndef _LIBC
+# define bzero(s, n) (memset (s, '\0', n), (s))
+# else
+# define bzero(s, n) __bzero (s, n)
+# endif
# endif
# else
# include <strings.h>
# define SWITCH_ENUM_CAST(x) (x)
# endif
-/* How many characters in the character set. */
-# define CHAR_SET_SIZE 256
-
-# ifdef SYNTAX_TABLE
-
-extern char *re_syntax_table;
-
-# else /* not SYNTAX_TABLE */
-
-static char re_syntax_table[CHAR_SET_SIZE];
-
-static void
-init_syntax_once ()
-{
- register int c;
- static int done = 0;
-
- if (done)
- return;
-
- bzero (re_syntax_table, sizeof re_syntax_table);
-
- for (c = 'a'; c <= 'z'; c++)
- re_syntax_table[c] = Sword;
-
- for (c = 'A'; c <= 'Z'; c++)
- re_syntax_table[c] = Sword;
-
- for (c = '0'; c <= '9'; c++)
- re_syntax_table[c] = Sword;
-
- re_syntax_table['_'] = Sword;
-
- done = 1;
-}
-
-# endif /* not SYNTAX_TABLE */
+#endif /* not emacs */
-# define SYNTAX(c) re_syntax_table[c]
+#if defined _LIBC || HAVE_LIMITS_H
+# include <limits.h>
+#endif
-#endif /* not emacs */
+#ifndef MB_LEN_MAX
+# define MB_LEN_MAX 1
+#endif
\f
/* Get the interface, including the syntax bits. */
-#include "regex.h"
+#include <regex.h>
/* isalpha etc. are used for the character classes. */
#include <ctype.h>
STDC_HEADERS is defined, then autoconf has verified that the ctype
macros don't need to be guarded with references to isascii. ...
Defining isascii to 1 should let any compiler worth its salt
- eliminate the && through constant folding." */
+ eliminate the && through constant folding."
+ Solaris defines some of these symbols so we must undefine them first. */
-#undef ISASCII
#if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
-# define ISASCII(c) 1
+# define IN_CTYPE_DOMAIN(c) 1
#else
-# define ISASCII(c) isascii(c)
+# define IN_CTYPE_DOMAIN(c) isascii(c)
#endif
#ifdef isblank
-# define ISBLANK(c) (ISASCII (c) && isblank (c))
+# define ISBLANK(c) (IN_CTYPE_DOMAIN (c) && isblank (c))
#else
# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
#endif
#ifdef isgraph
-# define ISGRAPH(c) (ISASCII (c) && isgraph (c))
+# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isgraph (c))
#else
-# define ISGRAPH(c) (ISASCII (c) && isprint (c) && !isspace (c))
+# define ISGRAPH(c) (IN_CTYPE_DOMAIN (c) && isprint (c) && !isspace (c))
#endif
#undef ISPRINT
-#define ISPRINT(c) (ISASCII (c) && isprint (c))
-#define ISDIGIT(c) (ISASCII (c) && isdigit (c))
-#define ISALNUM(c) (ISASCII (c) && isalnum (c))
-#define ISALPHA(c) (ISASCII (c) && isalpha (c))
-#define ISCNTRL(c) (ISASCII (c) && iscntrl (c))
-#define ISLOWER(c) (ISASCII (c) && islower (c))
-#define ISPUNCT(c) (ISASCII (c) && ispunct (c))
-#define ISSPACE(c) (ISASCII (c) && isspace (c))
-#define ISUPPER(c) (ISASCII (c) && isupper (c))
-#define ISXDIGIT(c) (ISASCII (c) && isxdigit (c))
+#define ISPRINT(c) (IN_CTYPE_DOMAIN (c) && isprint (c))
+#define ISDIGIT(c) (IN_CTYPE_DOMAIN (c) && isdigit (c))
+#define ISALNUM(c) (IN_CTYPE_DOMAIN (c) && isalnum (c))
+#define ISALPHA(c) (IN_CTYPE_DOMAIN (c) && isalpha (c))
+#define ISCNTRL(c) (IN_CTYPE_DOMAIN (c) && iscntrl (c))
+#define ISLOWER(c) (IN_CTYPE_DOMAIN (c) && islower (c))
+#define ISPUNCT(c) (IN_CTYPE_DOMAIN (c) && ispunct (c))
+#define ISSPACE(c) (IN_CTYPE_DOMAIN (c) && isspace (c))
+#define ISUPPER(c) (IN_CTYPE_DOMAIN (c) && isupper (c))
+#define ISXDIGIT(c) (IN_CTYPE_DOMAIN (c) && isxdigit (c))
+
+#ifdef _tolower
+# define TOLOWER(c) _tolower(c)
+#else
+# define TOLOWER(c) tolower(c)
+#endif
#ifndef NULL
# define NULL (void *)0
# define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
#endif
\f
+#ifndef emacs
+/* How many characters in the character set. */
+# define CHAR_SET_SIZE 256
+
+# ifdef SYNTAX_TABLE
+
+extern char *re_syntax_table;
+
+# else /* not SYNTAX_TABLE */
+
+static char re_syntax_table[CHAR_SET_SIZE];
+
+static void init_syntax_once PARAMS ((void));
+
+static void
+init_syntax_once ()
+{
+ register int c;
+ static int done = 0;
+
+ if (done)
+ return;
+ bzero (re_syntax_table, sizeof re_syntax_table);
+
+ for (c = 0; c < CHAR_SET_SIZE; ++c)
+ if (ISALNUM (c))
+ re_syntax_table[c] = Sword;
+
+ re_syntax_table['_'] = Sword;
+
+ done = 1;
+}
+
+# endif /* not SYNTAX_TABLE */
+
+# define SYNTAX(c) re_syntax_table[(unsigned char) (c)]
+
+#endif /* emacs */
+\f
/* Should we use malloc or alloca? If REGEX_MALLOC is not defined, we
use `alloca' instead of `malloc'. This is because using malloc in
re_search* or re_match* could cause memory leaks when C-g is used in
/* Followed by one byte giving n, then by n literal bytes. */
exactn,
+#ifdef MBS_SUPPORT
+ /* Same as exactn, but contains binary data. */
+ exactn_bin,
+#endif
+
/* Matches any (more or less) character. */
anychar,
are ordered low-bit-first. A character is in the set if its
bit is 1. A character too large to have a bit in the map is
automatically not in the set. */
+ /* ifdef MBS_SUPPORT, following element is length of character
+ classes, length of collating symbols, length of equivalence
+ classes, length of character ranges, and length of characters.
+ Next, character class element, collating symbols elements,
+ equivalence class elements, range elements, and character
+ elements follow.
+ See regex_compile function. */
charset,
/* Same parameters as charset, but match any character that is
/* Followed by two-byte relative address of place to resume at
in case of failure. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
on_failure_jump,
/* Like on_failure_jump, but pushes a placeholder instead of the
/* Throw away latest failure point and then jump to following
two-byte relative address. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
pop_failure_jump,
/* Change to pop_failure_jump if know won't have to backtrack to
sure that there is no use backtracking out of repetitions
already matched, then we change it to a pop_failure_jump.
Followed by two-byte address. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
maybe_pop_jump,
/* Jump to following two-byte address, and push a dummy failure
is made to use it for a failure. A `+' construct makes this
before the first repeat. Also used as an intermediary kind
of jump when compiling an alternative. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
dummy_failure_jump,
/* Push a dummy failure point and continue. Used at the end of
/* Followed by two-byte relative address and two-byte number n.
After matching N times, jump to the address upon failure. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
succeed_n,
/* Followed by two-byte relative address, and two-byte number n.
Jump to the address N times, then fail. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
jump_n,
/* Set the following two-byte relative address to the
subsequent two-byte number. The address *includes* the two
bytes of number. */
+ /* ifdef MBS_SUPPORT, the size of address is 1. */
set_number_at,
wordchar, /* Matches any word-constituent character. */
/* Common operations on the compiled pattern. */
/* Store NUMBER in two contiguous bytes starting at DESTINATION. */
+/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */
-#define STORE_NUMBER(destination, number) \
+#ifdef MBS_SUPPORT
+# define STORE_NUMBER(destination, number) \
+ do { \
+ *(destination) = (US_CHAR_TYPE)(number); \
+ } while (0)
+#else
+# define STORE_NUMBER(destination, number) \
do { \
(destination)[0] = (number) & 0377; \
(destination)[1] = (number) >> 8; \
} while (0)
+#endif /* MBS_SUPPORT */
/* Same as STORE_NUMBER, except increment DESTINATION to
the byte after where the number is stored. Therefore, DESTINATION
must be an lvalue. */
+/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */
#define STORE_NUMBER_AND_INCR(destination, number) \
do { \
STORE_NUMBER (destination, number); \
- (destination) += 2; \
+ (destination) += OFFSET_ADDRESS_SIZE; \
} while (0)
/* Put into DESTINATION a number stored in two contiguous bytes starting
at SOURCE. */
+/* ifdef MBS_SUPPORT, we store NUMBER in 1 element. */
-#define EXTRACT_NUMBER(destination, source) \
+#ifdef MBS_SUPPORT
+# define EXTRACT_NUMBER(destination, source) \
+ do { \
+ (destination) = *(source); \
+ } while (0)
+#else
+# define EXTRACT_NUMBER(destination, source) \
do { \
(destination) = *(source) & 0377; \
(destination) += SIGN_EXTEND_CHAR (*((source) + 1)) << 8; \
} while (0)
+#endif
#ifdef DEBUG
-static void extract_number _RE_ARGS ((int *dest, unsigned char *source));
+static void extract_number _RE_ARGS ((int *dest, US_CHAR_TYPE *source));
static void
extract_number (dest, source)
int *dest;
- unsigned char *source;
+ US_CHAR_TYPE *source;
{
+#ifdef MBS_SUPPORT
+ *dest = *source;
+#else
int temp = SIGN_EXTEND_CHAR (*(source + 1));
*dest = *source & 0377;
*dest += temp << 8;
+#endif
}
# ifndef EXTRACT_MACROS /* To debug the macros. */
#define EXTRACT_NUMBER_AND_INCR(destination, source) \
do { \
EXTRACT_NUMBER (destination, source); \
- (source) += 2; \
+ (source) += OFFSET_ADDRESS_SIZE; \
} while (0)
#ifdef DEBUG
static void extract_number_and_incr _RE_ARGS ((int *destination,
- unsigned char **source));
+ US_CHAR_TYPE **source));
static void
extract_number_and_incr (destination, source)
int *destination;
- unsigned char **source;
+ US_CHAR_TYPE **source;
{
extract_number (destination, *source);
- *source += 2;
+ *source += OFFSET_ADDRESS_SIZE;
}
# ifndef EXTRACT_MACROS
/* It is useful to test things that ``must'' be true when debugging. */
# include <assert.h>
-static int debug = 0;
+static int debug;
# define DEBUG_STATEMENT(e) e
# define DEBUG_PRINT1(x) if (debug) printf (x)
void
print_partial_compiled_pattern (start, end)
- unsigned char *start;
- unsigned char *end;
+ US_CHAR_TYPE *start;
+ US_CHAR_TYPE *end;
{
int mcnt, mcnt2;
- unsigned char *p1;
- unsigned char *p = start;
- unsigned char *pend = end;
+ US_CHAR_TYPE *p1;
+ US_CHAR_TYPE *p = start;
+ US_CHAR_TYPE *pend = end;
if (start == NULL)
{
/* Loop over pattern commands. */
while (p < pend)
{
- printf ("%d:\t", p - start);
+#ifdef _LIBC
+ printf ("%td:\t", p - start);
+#else
+ printf ("%ld:\t", (long int) (p - start));
+#endif
switch ((re_opcode_t) *p++)
{
do
{
putchar ('/');
- putchar (*p++);
+ PUT_CHAR (*p++);
}
while (--mcnt);
break;
+#ifdef MBS_SUPPORT
+ case exactn_bin:
+ mcnt = *p++;
+ printf ("/exactn_bin/%d", mcnt);
+ do
+ {
+ printf("/%lx", (long int) *p++);
+ }
+ while (--mcnt);
+ break;
+#endif /* MBS_SUPPORT */
+
case start_memory:
mcnt = *p++;
- printf ("/start_memory/%d/%d", mcnt, *p++);
+ printf ("/start_memory/%d/%ld", mcnt, (long int) *p++);
break;
case stop_memory:
mcnt = *p++;
- printf ("/stop_memory/%d/%d", mcnt, *p++);
+ printf ("/stop_memory/%d/%ld", mcnt, (long int) *p++);
break;
case duplicate:
- printf ("/duplicate/%d", *p++);
+ printf ("/duplicate/%ld", (long int) *p++);
break;
case anychar:
case charset:
case charset_not:
{
+#ifdef MBS_SUPPORT
+ int i, length;
+ wchar_t *workp = p;
+ printf ("/charset [%s",
+ (re_opcode_t) *(workp - 1) == charset_not ? "^" : "");
+ p += 5;
+ length = *workp++; /* the length of char_classes */
+ for (i=0 ; i<length ; i++)
+ printf("[:%lx:]", (long int) *p++);
+ length = *workp++; /* the length of collating_symbol */
+ for (i=0 ; i<length ;)
+ {
+ printf("[.");
+ while(*p != 0)
+ PUT_CHAR((i++,*p++));
+ i++,p++;
+ printf(".]");
+ }
+ length = *workp++; /* the length of equivalence_class */
+ for (i=0 ; i<length ;)
+ {
+ printf("[=");
+ while(*p != 0)
+ PUT_CHAR((i++,*p++));
+ i++,p++;
+ printf("=]");
+ }
+ length = *workp++; /* the length of char_range */
+ for (i=0 ; i<length ; i++)
+ {
+ wchar_t range_start = *p++;
+ wchar_t range_end = *p++;
+ if (MB_CUR_MAX == 1)
+ printf("%c-%c", (char) range_start, (char) range_end);
+ else
+ printf("%C-%C", (wint_t) range_start, (wint_t) range_end);
+ }
+ length = *workp++; /* the length of char */
+ for (i=0 ; i<length ; i++)
+ if (MB_CUR_MAX == 1)
+ putchar (*p++);
+ else
+ printf("%C", (wint_t) *p++);
+ putchar (']');
+#else
register int c, last = -100;
register int in_range = 0;
putchar (']');
p += 1 + *p;
+#endif /* MBS_SUPPORT */
}
break;
case on_failure_jump:
extract_number_and_incr (&mcnt, &p);
- printf ("/on_failure_jump to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/on_failure_jump to %td", p + mcnt - start);
+#else
+ printf ("/on_failure_jump to %ld", (long int) (p + mcnt - start));
+#endif
break;
case on_failure_keep_string_jump:
extract_number_and_incr (&mcnt, &p);
- printf ("/on_failure_keep_string_jump to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/on_failure_keep_string_jump to %td", p + mcnt - start);
+#else
+ printf ("/on_failure_keep_string_jump to %ld",
+ (long int) (p + mcnt - start));
+#endif
break;
case dummy_failure_jump:
extract_number_and_incr (&mcnt, &p);
- printf ("/dummy_failure_jump to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/dummy_failure_jump to %td", p + mcnt - start);
+#else
+ printf ("/dummy_failure_jump to %ld", (long int) (p + mcnt - start));
+#endif
break;
case push_dummy_failure:
case maybe_pop_jump:
extract_number_and_incr (&mcnt, &p);
- printf ("/maybe_pop_jump to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/maybe_pop_jump to %td", p + mcnt - start);
+#else
+ printf ("/maybe_pop_jump to %ld", (long int) (p + mcnt - start));
+#endif
break;
case pop_failure_jump:
extract_number_and_incr (&mcnt, &p);
- printf ("/pop_failure_jump to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/pop_failure_jump to %td", p + mcnt - start);
+#else
+ printf ("/pop_failure_jump to %ld", (long int) (p + mcnt - start));
+#endif
break;
case jump_past_alt:
extract_number_and_incr (&mcnt, &p);
- printf ("/jump_past_alt to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/jump_past_alt to %td", p + mcnt - start);
+#else
+ printf ("/jump_past_alt to %ld", (long int) (p + mcnt - start));
+#endif
break;
case jump:
extract_number_and_incr (&mcnt, &p);
- printf ("/jump to %d", p + mcnt - start);
+#ifdef _LIBC
+ printf ("/jump to %td", p + mcnt - start);
+#else
+ printf ("/jump to %ld", (long int) (p + mcnt - start));
+#endif
break;
case succeed_n:
extract_number_and_incr (&mcnt, &p);
p1 = p + mcnt;
extract_number_and_incr (&mcnt2, &p);
- printf ("/succeed_n to %d, %d times", p1 - start, mcnt2);
+#ifdef _LIBC
+ printf ("/succeed_n to %td, %d times", p1 - start, mcnt2);
+#else
+ printf ("/succeed_n to %ld, %d times",
+ (long int) (p1 - start), mcnt2);
+#endif
break;
case jump_n:
extract_number_and_incr (&mcnt, &p);
p1 = p + mcnt;
extract_number_and_incr (&mcnt2, &p);
- printf ("/set_number_at location %d to %d", p1 - start, mcnt2);
+#ifdef _LIBC
+ printf ("/set_number_at location %td to %d", p1 - start, mcnt2);
+#else
+ printf ("/set_number_at location %ld to %d",
+ (long int) (p1 - start), mcnt2);
+#endif
break;
case wordbound:
case wordend:
printf ("/wordend");
+ break;
# ifdef emacs
case before_dot:
break;
default:
- printf ("?%d", *(p-1));
+ printf ("?%ld", (long int) *(p-1));
}
putchar ('\n');
}
- printf ("%d:\tend of pattern.\n", p - start);
+#ifdef _LIBC
+ printf ("%td:\tend of pattern.\n", p - start);
+#else
+ printf ("%ld:\tend of pattern.\n", (long int) (p - start));
+#endif
}
print_compiled_pattern (bufp)
struct re_pattern_buffer *bufp;
{
- unsigned char *buffer = bufp->buffer;
+ US_CHAR_TYPE *buffer = (US_CHAR_TYPE*) bufp->buffer;
- print_partial_compiled_pattern (buffer, buffer + bufp->used);
+ print_partial_compiled_pattern (buffer, buffer
+ + bufp->used / sizeof(US_CHAR_TYPE));
printf ("%ld bytes used/%ld bytes allocated.\n",
bufp->used, bufp->allocated);
print_fastmap (bufp->fastmap);
}
- printf ("re_nsub: %d\t", bufp->re_nsub);
+#ifdef _LIBC
+ printf ("re_nsub: %Zd\t", bufp->re_nsub);
+#else
+ printf ("re_nsub: %ld\t", (long int) bufp->re_nsub);
+#endif
printf ("regs_alloc: %d\t", bufp->regs_allocated);
printf ("can_be_null: %d\t", bufp->can_be_null);
printf ("newline_anchor: %d\n", bufp->newline_anchor);
void
print_double_string (where, string1, size1, string2, size2)
- const char *where;
- const char *string1;
- const char *string2;
+ const CHAR_TYPE *where;
+ const CHAR_TYPE *string1;
+ const CHAR_TYPE *string2;
int size1;
int size2;
{
if (FIRST_STRING_P (where))
{
for (this_char = where - string1; this_char < size1; this_char++)
- putchar (string1[this_char]);
+ PUT_CHAR (string1[this_char]);
where = string2;
}
for (this_char = where - string2; this_char < size2; this_char++)
- putchar (string2[this_char]);
+ PUT_CHAR (string2[this_char]);
}
}
#endif /* not DEBUG */
\f
+#ifdef MBS_SUPPORT
+/* This convert a multibyte string to a wide character string.
+ And write their correspondances to offset_buffer(see below)
+ and write whether each wchar_t is binary data to is_binary.
+ This assume invalid multibyte sequences as binary data.
+ We assume offset_buffer and is_binary is already allocated
+ enough space. */
+
+static size_t convert_mbs_to_wcs (CHAR_TYPE *dest, const unsigned char* src,
+ size_t len, int *offset_buffer,
+ char *is_binary);
+static size_t
+convert_mbs_to_wcs (dest, src, len, offset_buffer, is_binary)
+ CHAR_TYPE *dest;
+ const unsigned char* src;
+ size_t len; /* the length of multibyte string. */
+
+ /* It hold correspondances between src(char string) and
+ dest(wchar_t string) for optimization.
+ e.g. src = "xxxyzz"
+ dest = {'X', 'Y', 'Z'}
+ (each "xxx", "y" and "zz" represent one multibyte character
+ corresponding to 'X', 'Y' and 'Z'.)
+ offset_buffer = {0, 0+3("xxx"), 0+3+1("y"), 0+3+1+2("zz")}
+ = {0, 3, 4, 6}
+ */
+ int *offset_buffer;
+ char *is_binary;
+{
+ wchar_t *pdest = dest;
+ const unsigned char *psrc = src;
+ size_t wc_count = 0;
+
+ if (MB_CUR_MAX == 1)
+ { /* We don't need conversion. */
+ for ( ; wc_count < len ; ++wc_count)
+ {
+ *pdest++ = *psrc++;
+ is_binary[wc_count] = FALSE;
+ offset_buffer[wc_count] = wc_count;
+ }
+ offset_buffer[wc_count] = wc_count;
+ }
+ else
+ {
+ /* We need conversion. */
+ mbstate_t mbs;
+ int consumed;
+ size_t mb_remain = len;
+ size_t mb_count = 0;
+
+ /* Initialize the conversion state. */
+ memset (&mbs, 0, sizeof (mbstate_t));
+
+ offset_buffer[0] = 0;
+ for( ; mb_remain > 0 ; ++wc_count, ++pdest, mb_remain -= consumed,
+ psrc += consumed)
+ {
+ consumed = mbrtowc (pdest, psrc, mb_remain, &mbs);
+
+ if (consumed <= 0)
+ /* failed to convert. maybe src contains binary data.
+ So we consume 1 byte manualy. */
+ {
+ *pdest = *psrc;
+ consumed = 1;
+ is_binary[wc_count] = TRUE;
+ }
+ else
+ is_binary[wc_count] = FALSE;
+ /* In sjis encoding, we use yen sign as escape character in
+ place of reverse solidus. So we convert 0x5c(yen sign in
+ sjis) to not 0xa5(yen sign in UCS2) but 0x5c(reverse
+ solidus in UCS2). */
+ if (consumed == 1 && (int) *psrc == 0x5c && (int) *pdest == 0xa5)
+ *pdest = (wchar_t) *psrc;
+
+ offset_buffer[wc_count + 1] = mb_count += consumed;
+ }
+ }
+
+ return wc_count;
+}
+
+#endif /* MBS_SUPPORT */
+
/* Set by `re_set_syntax' to the current regexp syntax to recognize. Can
also be assigned to arbitrarily: each pattern buffer stores its own
syntax, so it can be changed between regex compilations. */
#endif /* DEBUG */
return ret;
}
+#ifdef _LIBC
+weak_alias (__re_set_syntax, re_set_syntax)
+#endif
\f
/* This table gives an error message for each of the error codes listed
in regex.h. Obviously the order here has to be same as there.
POSIX doesn't require that we do anything for REG_NOERROR,
but why not be nice? */
-static const char *re_error_msgid[] =
+static const char re_error_msgid[] =
{
- gettext_noop ("Success"), /* REG_NOERROR */
- gettext_noop ("No match"), /* REG_NOMATCH */
- gettext_noop ("Invalid regular expression"), /* REG_BADPAT */
- gettext_noop ("Invalid collation character"), /* REG_ECOLLATE */
- gettext_noop ("Invalid character class name"), /* REG_ECTYPE */
- gettext_noop ("Trailing backslash"), /* REG_EESCAPE */
- gettext_noop ("Invalid back reference"), /* REG_ESUBREG */
- gettext_noop ("Unmatched [ or [^"), /* REG_EBRACK */
- gettext_noop ("Unmatched ( or \\("), /* REG_EPAREN */
- gettext_noop ("Unmatched \\{"), /* REG_EBRACE */
- gettext_noop ("Invalid content of \\{\\}"), /* REG_BADBR */
- gettext_noop ("Invalid range end"), /* REG_ERANGE */
- gettext_noop ("Memory exhausted"), /* REG_ESPACE */
- gettext_noop ("Invalid preceding regular expression"), /* REG_BADRPT */
- gettext_noop ("Premature end of regular expression"), /* REG_EEND */
- gettext_noop ("Regular expression too big"), /* REG_ESIZE */
- gettext_noop ("Unmatched ) or \\)"), /* REG_ERPAREN */
+#define REG_NOERROR_IDX 0
+ gettext_noop ("Success") /* REG_NOERROR */
+ "\0"
+#define REG_NOMATCH_IDX (REG_NOERROR_IDX + sizeof "Success")
+ gettext_noop ("No match") /* REG_NOMATCH */
+ "\0"
+#define REG_BADPAT_IDX (REG_NOMATCH_IDX + sizeof "No match")
+ gettext_noop ("Invalid regular expression") /* REG_BADPAT */
+ "\0"
+#define REG_ECOLLATE_IDX (REG_BADPAT_IDX + sizeof "Invalid regular expression")
+ gettext_noop ("Invalid collation character") /* REG_ECOLLATE */
+ "\0"
+#define REG_ECTYPE_IDX (REG_ECOLLATE_IDX + sizeof "Invalid collation character")
+ gettext_noop ("Invalid character class name") /* REG_ECTYPE */
+ "\0"
+#define REG_EESCAPE_IDX (REG_ECTYPE_IDX + sizeof "Invalid character class name")
+ gettext_noop ("Trailing backslash") /* REG_EESCAPE */
+ "\0"
+#define REG_ESUBREG_IDX (REG_EESCAPE_IDX + sizeof "Trailing backslash")
+ gettext_noop ("Invalid back reference") /* REG_ESUBREG */
+ "\0"
+#define REG_EBRACK_IDX (REG_ESUBREG_IDX + sizeof "Invalid back reference")
+ gettext_noop ("Unmatched [ or [^") /* REG_EBRACK */
+ "\0"
+#define REG_EPAREN_IDX (REG_EBRACK_IDX + sizeof "Unmatched [ or [^")
+ gettext_noop ("Unmatched ( or \\(") /* REG_EPAREN */
+ "\0"
+#define REG_EBRACE_IDX (REG_EPAREN_IDX + sizeof "Unmatched ( or \\(")
+ gettext_noop ("Unmatched \\{") /* REG_EBRACE */
+ "\0"
+#define REG_BADBR_IDX (REG_EBRACE_IDX + sizeof "Unmatched \\{")
+ gettext_noop ("Invalid content of \\{\\}") /* REG_BADBR */
+ "\0"
+#define REG_ERANGE_IDX (REG_BADBR_IDX + sizeof "Invalid content of \\{\\}")
+ gettext_noop ("Invalid range end") /* REG_ERANGE */
+ "\0"
+#define REG_ESPACE_IDX (REG_ERANGE_IDX + sizeof "Invalid range end")
+ gettext_noop ("Memory exhausted") /* REG_ESPACE */
+ "\0"
+#define REG_BADRPT_IDX (REG_ESPACE_IDX + sizeof "Memory exhausted")
+ gettext_noop ("Invalid preceding regular expression") /* REG_BADRPT */
+ "\0"
+#define REG_EEND_IDX (REG_BADRPT_IDX + sizeof "Invalid preceding regular expression")
+ gettext_noop ("Premature end of regular expression") /* REG_EEND */
+ "\0"
+#define REG_ESIZE_IDX (REG_EEND_IDX + sizeof "Premature end of regular expression")
+ gettext_noop ("Regular expression too big") /* REG_ESIZE */
+ "\0"
+#define REG_ERPAREN_IDX (REG_ESIZE_IDX + sizeof "Regular expression too big")
+ gettext_noop ("Unmatched ) or \\)") /* REG_ERPAREN */
+ };
+
+static const size_t re_error_msgid_idx[] =
+ {
+ REG_NOERROR_IDX,
+ REG_NOMATCH_IDX,
+ REG_BADPAT_IDX,
+ REG_ECOLLATE_IDX,
+ REG_ECTYPE_IDX,
+ REG_EESCAPE_IDX,
+ REG_ESUBREG_IDX,
+ REG_EBRACK_IDX,
+ REG_EPAREN_IDX,
+ REG_EBRACE_IDX,
+ REG_BADBR_IDX,
+ REG_ERANGE_IDX,
+ REG_ESPACE_IDX,
+ REG_BADRPT_IDX,
+ REG_EEND_IDX,
+ REG_ESIZE_IDX,
+ REG_ERPAREN_IDX
};
\f
/* Avoiding alloca during matching, to placate r_alloc. */
union fail_stack_elt
{
- unsigned char *pointer;
+ US_CHAR_TYPE *pointer;
long int integer;
};
# if defined MATCH_MAY_ALLOCATE
/* 4400 was enough to cause a crash on Alpha OSF/1,
whose default stack limit is 2mb. */
-int re_max_failures = 20000;
+int re_max_failures = 4000;
# else
int re_max_failures = 2000;
# endif
union fail_stack_elt
{
- unsigned char *pointer;
+ US_CHAR_TYPE *pointer;
int integer;
};
Assumes the variable `fail_stack'. Probably should only
be called from within `PUSH_FAILURE_POINT'. */
#define PUSH_FAILURE_POINTER(item) \
- fail_stack.stack[fail_stack.avail++].pointer = (unsigned char *) (item)
+ fail_stack.stack[fail_stack.avail++].pointer = (US_CHAR_TYPE *) (item)
/* This pushes an integer-valued item onto the failure stack.
Assumes the variable `fail_stack'. Probably should only
Also assumes the variables `fail_stack' and (if debugging), `bufp',
`pend', `string1', `size1', `string2', and `size2'. */
-
#define POP_FAILURE_POINT(str, pat, low_reg, high_reg, regstart, regend, reg_info)\
{ \
DEBUG_STATEMENT (unsigned failure_id;) \
active_reg_t this_reg; \
- const unsigned char *string_temp; \
+ const US_CHAR_TYPE *string_temp; \
\
assert (!FAIL_STACK_EMPTY ()); \
\
saved NULL, thus retaining our current position in the string. */ \
string_temp = POP_FAILURE_POINTER (); \
if (string_temp != NULL) \
- str = (const char *) string_temp; \
+ str = (const CHAR_TYPE *) string_temp; \
\
DEBUG_PRINT2 (" Popping string %p: `", str); \
DEBUG_PRINT_DOUBLE_STRING (str, string1, size1, string2, size2); \
DEBUG_PRINT1 ("'\n"); \
\
- pat = (unsigned char *) POP_FAILURE_POINTER (); \
+ pat = (US_CHAR_TYPE *) POP_FAILURE_POINTER (); \
DEBUG_PRINT2 (" Popping pattern %p:\n", pat); \
DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \
\
DEBUG_PRINT2 (" info: %p\n", \
reg_info[this_reg].word.pointer); \
\
- regend[this_reg] = (const char *) POP_FAILURE_POINTER (); \
+ regend[this_reg] = (const CHAR_TYPE *) POP_FAILURE_POINTER (); \
DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \
\
- regstart[this_reg] = (const char *) POP_FAILURE_POINTER (); \
+ regstart[this_reg] = (const CHAR_TYPE *) POP_FAILURE_POINTER ();\
DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \
} \
else \
DEBUG_STATEMENT (nfailure_points_popped++); \
} /* POP_FAILURE_POINT */
-
\f
/* Structure for per-register (a.k.a. per-group) information.
Other register information, such as the
while (0)
/* Registers are set to a sentinel when they haven't yet matched. */
-static char reg_unset_dummy;
+static CHAR_TYPE reg_unset_dummy;
#define REG_UNSET_VALUE (®_unset_dummy)
#define REG_UNSET(e) ((e) == REG_UNSET_VALUE)
\f
static reg_errcode_t regex_compile _RE_ARGS ((const char *pattern, size_t size,
reg_syntax_t syntax,
struct re_pattern_buffer *bufp));
-static void store_op1 _RE_ARGS ((re_opcode_t op, unsigned char *loc, int arg));
-static void store_op2 _RE_ARGS ((re_opcode_t op, unsigned char *loc,
+static void store_op1 _RE_ARGS ((re_opcode_t op, US_CHAR_TYPE *loc, int arg));
+static void store_op2 _RE_ARGS ((re_opcode_t op, US_CHAR_TYPE *loc,
int arg1, int arg2));
-static void insert_op1 _RE_ARGS ((re_opcode_t op, unsigned char *loc,
- int arg, unsigned char *end));
-static void insert_op2 _RE_ARGS ((re_opcode_t op, unsigned char *loc,
- int arg1, int arg2, unsigned char *end));
-static boolean at_begline_loc_p _RE_ARGS ((const char *pattern, const char *p,
+static void insert_op1 _RE_ARGS ((re_opcode_t op, US_CHAR_TYPE *loc,
+ int arg, US_CHAR_TYPE *end));
+static void insert_op2 _RE_ARGS ((re_opcode_t op, US_CHAR_TYPE *loc,
+ int arg1, int arg2, US_CHAR_TYPE *end));
+static boolean at_begline_loc_p _RE_ARGS ((const CHAR_TYPE *pattern,
+ const CHAR_TYPE *p,
reg_syntax_t syntax));
-static boolean at_endline_loc_p _RE_ARGS ((const char *p, const char *pend,
+static boolean at_endline_loc_p _RE_ARGS ((const CHAR_TYPE *p,
+ const CHAR_TYPE *pend,
reg_syntax_t syntax));
-static reg_errcode_t compile_range _RE_ARGS ((const char **p_ptr,
- const char *pend,
+#ifdef MBS_SUPPORT
+static reg_errcode_t compile_range _RE_ARGS ((CHAR_TYPE range_start,
+ const CHAR_TYPE **p_ptr,
+ const CHAR_TYPE *pend,
+ char *translate,
+ reg_syntax_t syntax,
+ US_CHAR_TYPE *b,
+ CHAR_TYPE *char_set));
+static void insert_space _RE_ARGS ((int num, CHAR_TYPE *loc, CHAR_TYPE *end));
+#else
+static reg_errcode_t compile_range _RE_ARGS ((unsigned int range_start,
+ const CHAR_TYPE **p_ptr,
+ const CHAR_TYPE *pend,
char *translate,
reg_syntax_t syntax,
- unsigned char *b));
+ US_CHAR_TYPE *b));
+#endif /* MBS_SUPPORT */
/* Fetch the next character in the uncompiled pattern---translating it
if necessary. Also cast from a signed character in the constant
string passed to us by the user to an unsigned char that we can use
as an array index (in, e.g., `translate'). */
+/* ifdef MBS_SUPPORT, we translate only if character <= 0xff,
+ because it is impossible to allocate 4GB array for some encodings
+ which have 4 byte character_set like UCS4. */
#ifndef PATFETCH
-# define PATFETCH(c) \
+# ifdef MBS_SUPPORT
+# define PATFETCH(c) \
+ do {if (p == pend) return REG_EEND; \
+ c = (US_CHAR_TYPE) *p++; \
+ if (translate && (c <= 0xff)) c = (US_CHAR_TYPE) translate[c]; \
+ } while (0)
+# else
+# define PATFETCH(c) \
do {if (p == pend) return REG_EEND; \
c = (unsigned char) *p++; \
if (translate) c = (unsigned char) translate[c]; \
} while (0)
+# endif /* MBS_SUPPORT */
#endif
/* Fetch the next character in the uncompiled pattern, with no
translation. */
#define PATFETCH_RAW(c) \
do {if (p == pend) return REG_EEND; \
- c = (unsigned char) *p++; \
+ c = (US_CHAR_TYPE) *p++; \
} while (0)
/* Go backwards one character in the pattern. */
cast the subscript to translate because some data is declared as
`char *', to avoid warnings when a string constant is passed. But
when we use a character as a subscript we must make it unsigned. */
+/* ifdef MBS_SUPPORT, we translate only if character <= 0xff,
+ because it is impossible to allocate 4GB array for some encodings
+ which have 4 byte character_set like UCS4. */
#ifndef TRANSLATE
-# define TRANSLATE(d) \
+# ifdef MBS_SUPPORT
+# define TRANSLATE(d) \
+ ((translate && ((US_CHAR_TYPE) (d)) <= 0xff) \
+ ? (char) translate[(unsigned char) (d)] : (d))
+#else
+# define TRANSLATE(d) \
(translate ? (char) translate[(unsigned char) (d)] : (d))
+# endif /* MBS_SUPPORT */
#endif
/* Macros for outputting the compiled pattern into `buffer'. */
/* If the buffer isn't allocated when it comes in, use this. */
-#define INIT_BUF_SIZE 32
+#define INIT_BUF_SIZE (32 * sizeof(US_CHAR_TYPE))
/* Make sure we have at least N more bytes of space in buffer. */
-#define GET_BUFFER_SPACE(n) \
+#ifdef MBS_SUPPORT
+# define GET_BUFFER_SPACE(n) \
+ while (((unsigned long)b - (unsigned long)COMPILED_BUFFER_VAR \
+ + (n)*sizeof(CHAR_TYPE)) > bufp->allocated) \
+ EXTEND_BUFFER ()
+#else
+# define GET_BUFFER_SPACE(n) \
while ((unsigned long) (b - bufp->buffer + (n)) > bufp->allocated) \
EXTEND_BUFFER ()
+#endif /* MBS_SUPPORT */
/* Make sure we have one more byte of buffer space and then add C to it. */
#define BUF_PUSH(c) \
do { \
GET_BUFFER_SPACE (1); \
- *b++ = (unsigned char) (c); \
+ *b++ = (US_CHAR_TYPE) (c); \
} while (0)
#define BUF_PUSH_2(c1, c2) \
do { \
GET_BUFFER_SPACE (2); \
- *b++ = (unsigned char) (c1); \
- *b++ = (unsigned char) (c2); \
+ *b++ = (US_CHAR_TYPE) (c1); \
+ *b++ = (US_CHAR_TYPE) (c2); \
} while (0)
#define BUF_PUSH_3(c1, c2, c3) \
do { \
GET_BUFFER_SPACE (3); \
- *b++ = (unsigned char) (c1); \
- *b++ = (unsigned char) (c2); \
- *b++ = (unsigned char) (c3); \
+ *b++ = (US_CHAR_TYPE) (c1); \
+ *b++ = (US_CHAR_TYPE) (c2); \
+ *b++ = (US_CHAR_TYPE) (c3); \
} while (0)
-
/* Store a jump with opcode OP at LOC to location TO. We store a
relative address offset by the three bytes the jump itself occupies. */
#define STORE_JUMP(op, loc, to) \
- store_op1 (op, loc, (int) ((to) - (loc) - 3))
+ store_op1 (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)))
/* Likewise, for a two-argument jump. */
#define STORE_JUMP2(op, loc, to, arg) \
- store_op2 (op, loc, (int) ((to) - (loc) - 3), arg)
+ store_op2 (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), arg)
/* Like `STORE_JUMP', but for inserting. Assume `b' is the buffer end. */
#define INSERT_JUMP(op, loc, to) \
- insert_op1 (op, loc, (int) ((to) - (loc) - 3), b)
+ insert_op1 (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), b)
/* Like `STORE_JUMP2', but for inserting. Assume `b' is the buffer end. */
#define INSERT_JUMP2(op, loc, to, arg) \
- insert_op2 (op, loc, (int) ((to) - (loc) - 3), arg, b)
+ insert_op2 (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)),\
+ arg, b)
/* This is not an arbitrary limit: the arguments which represent offsets
reset the pointers that pointed into the old block to point to the
correct places in the new one. If extending the buffer results in it
being larger than MAX_BUF_SIZE, then flag memory exhausted. */
-#define EXTEND_BUFFER() \
- do { \
- unsigned char *old_buffer = bufp->buffer; \
- if (bufp->allocated == MAX_BUF_SIZE) \
+#if __BOUNDED_POINTERS__
+# define SET_HIGH_BOUND(P) (__ptrhigh (P) = __ptrlow (P) + bufp->allocated)
+# define MOVE_BUFFER_POINTER(P) \
+ (__ptrlow (P) += incr, SET_HIGH_BOUND (P), __ptrvalue (P) += incr)
+# define ELSE_EXTEND_BUFFER_HIGH_BOUND \
+ else \
+ { \
+ SET_HIGH_BOUND (b); \
+ SET_HIGH_BOUND (begalt); \
+ if (fixup_alt_jump) \
+ SET_HIGH_BOUND (fixup_alt_jump); \
+ if (laststart) \
+ SET_HIGH_BOUND (laststart); \
+ if (pending_exact) \
+ SET_HIGH_BOUND (pending_exact); \
+ }
+#else
+# define MOVE_BUFFER_POINTER(P) (P) += incr
+# define ELSE_EXTEND_BUFFER_HIGH_BOUND
+#endif
+
+#ifdef MBS_SUPPORT
+# define EXTEND_BUFFER() \
+ do { \
+ US_CHAR_TYPE *old_buffer = COMPILED_BUFFER_VAR; \
+ int wchar_count; \
+ if (bufp->allocated + sizeof(US_CHAR_TYPE) > MAX_BUF_SIZE) \
return REG_ESIZE; \
bufp->allocated <<= 1; \
if (bufp->allocated > MAX_BUF_SIZE) \
- bufp->allocated = MAX_BUF_SIZE; \
- bufp->buffer = (unsigned char *) REALLOC (bufp->buffer, bufp->allocated);\
- if (bufp->buffer == NULL) \
+ bufp->allocated = MAX_BUF_SIZE; \
+ /* How many characters the new buffer can have? */ \
+ wchar_count = bufp->allocated / sizeof(US_CHAR_TYPE); \
+ if (wchar_count == 0) wchar_count = 1; \
+ /* Truncate the buffer to CHAR_TYPE align. */ \
+ bufp->allocated = wchar_count * sizeof(US_CHAR_TYPE); \
+ RETALLOC (COMPILED_BUFFER_VAR, wchar_count, US_CHAR_TYPE); \
+ bufp->buffer = (char*)COMPILED_BUFFER_VAR; \
+ if (COMPILED_BUFFER_VAR == NULL) \
return REG_ESPACE; \
/* If the buffer moved, move all the pointers into it. */ \
- if (old_buffer != bufp->buffer) \
+ if (old_buffer != COMPILED_BUFFER_VAR) \
{ \
- b = (b - old_buffer) + bufp->buffer; \
- begalt = (begalt - old_buffer) + bufp->buffer; \
- if (fixup_alt_jump) \
- fixup_alt_jump = (fixup_alt_jump - old_buffer) + bufp->buffer;\
- if (laststart) \
- laststart = (laststart - old_buffer) + bufp->buffer; \
- if (pending_exact) \
- pending_exact = (pending_exact - old_buffer) + bufp->buffer; \
+ int incr = COMPILED_BUFFER_VAR - old_buffer; \
+ MOVE_BUFFER_POINTER (b); \
+ MOVE_BUFFER_POINTER (begalt); \
+ if (fixup_alt_jump) \
+ MOVE_BUFFER_POINTER (fixup_alt_jump); \
+ if (laststart) \
+ MOVE_BUFFER_POINTER (laststart); \
+ if (pending_exact) \
+ MOVE_BUFFER_POINTER (pending_exact); \
} \
+ ELSE_EXTEND_BUFFER_HIGH_BOUND \
} while (0)
-
+#else
+# define EXTEND_BUFFER() \
+ do { \
+ US_CHAR_TYPE *old_buffer = COMPILED_BUFFER_VAR; \
+ if (bufp->allocated == MAX_BUF_SIZE) \
+ return REG_ESIZE; \
+ bufp->allocated <<= 1; \
+ if (bufp->allocated > MAX_BUF_SIZE) \
+ bufp->allocated = MAX_BUF_SIZE; \
+ bufp->buffer = (US_CHAR_TYPE *) REALLOC (COMPILED_BUFFER_VAR, \
+ bufp->allocated); \
+ if (COMPILED_BUFFER_VAR == NULL) \
+ return REG_ESPACE; \
+ /* If the buffer moved, move all the pointers into it. */ \
+ if (old_buffer != COMPILED_BUFFER_VAR) \
+ { \
+ int incr = COMPILED_BUFFER_VAR - old_buffer; \
+ MOVE_BUFFER_POINTER (b); \
+ MOVE_BUFFER_POINTER (begalt); \
+ if (fixup_alt_jump) \
+ MOVE_BUFFER_POINTER (fixup_alt_jump); \
+ if (laststart) \
+ MOVE_BUFFER_POINTER (laststart); \
+ if (pending_exact) \
+ MOVE_BUFFER_POINTER (pending_exact); \
+ } \
+ ELSE_EXTEND_BUFFER_HIGH_BOUND \
+ } while (0)
+#endif /* MBS_SUPPORT */
/* Since we have one byte reserved for the register number argument to
{start,stop}_memory, the maximum number of groups we can report
/* Get the next unsigned number in the uncompiled pattern. */
-#define GET_UNSIGNED_NUMBER(num) \
- { if (p != pend) \
- { \
- PATFETCH (c); \
- while (ISDIGIT (c)) \
- { \
- if (num < 0) \
- num = 0; \
- num = num * 10 + c - '0'; \
- if (p == pend) \
- break; \
- PATFETCH (c); \
- } \
- } \
- }
+#define GET_UNSIGNED_NUMBER(num) \
+ { \
+ while (p != pend) \
+ { \
+ PATFETCH (c); \
+ if (c < '0' || c > '9') \
+ break; \
+ if (num <= RE_DUP_MAX) \
+ { \
+ if (num < 0) \
+ num = 0; \
+ num = num * 10 + c - '0'; \
+ } \
+ } \
+ }
-#if WIDE_CHAR_SUPPORT
+#if defined _LIBC || WIDE_CHAR_SUPPORT
/* The GNU C library provides support for user-defined character classes
and the functions from ISO C amendement 1. */
# ifdef CHARCLASS_NAME_MAX
# define CHAR_CLASS_MAX_LENGTH 256
# endif
-# define IS_CHAR_CLASS(string) wctype (string)
+# ifdef _LIBC
+# define IS_CHAR_CLASS(string) __wctype (string)
+# else
+# define IS_CHAR_CLASS(string) wctype (string)
+# endif
#else
# define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */
examined nor set. */
/* Return, freeing storage we allocated. */
-#define FREE_STACK_RETURN(value) \
+#ifdef MBS_SUPPORT
+# define FREE_STACK_RETURN(value) \
+ return (free(pattern), free(mbs_offset), free(is_binary), free (compile_stack.stack), value)
+#else
+# define FREE_STACK_RETURN(value) \
return (free (compile_stack.stack), value)
+#endif /* MBS_SUPPORT */
static reg_errcode_t
+#ifdef MBS_SUPPORT
+regex_compile (cpattern, csize, syntax, bufp)
+ const char *cpattern;
+ size_t csize;
+#else
regex_compile (pattern, size, syntax, bufp)
const char *pattern;
size_t size;
+#endif /* MBS_SUPPORT */
reg_syntax_t syntax;
struct re_pattern_buffer *bufp;
{
/* We fetch characters from PATTERN here. Even though PATTERN is
`char *' (i.e., signed), we declare these variables as unsigned, so
they can be reliably used as array indices. */
- register unsigned char c, c1;
+ register US_CHAR_TYPE c, c1;
+
+#ifdef MBS_SUPPORT
+ /* A temporary space to keep wchar_t pattern and compiled pattern. */
+ CHAR_TYPE *pattern, *COMPILED_BUFFER_VAR;
+ size_t size;
+ /* offset buffer for optimizatoin. See convert_mbs_to_wc. */
+ int *mbs_offset = NULL;
+ /* It hold whether each wchar_t is binary data or not. */
+ char *is_binary = NULL;
+ /* A flag whether exactn is handling binary data or not. */
+ char is_exactn_bin = FALSE;
+#endif /* MBS_SUPPORT */
/* A random temporary spot in PATTERN. */
- const char *p1;
+ const CHAR_TYPE *p1;
/* Points to the end of the buffer, where we should append. */
- register unsigned char *b;
+ register US_CHAR_TYPE *b;
/* Keeps track of unclosed groups. */
compile_stack_type compile_stack;
/* Points to the current (ending) position in the pattern. */
- const char *p = pattern;
- const char *pend = pattern + size;
+#ifdef MBS_SUPPORT
+ const CHAR_TYPE *p;
+ const CHAR_TYPE *pend;
+#else
+ const CHAR_TYPE *p = pattern;
+ const CHAR_TYPE *pend = pattern + size;
+#endif /* MBS_SUPPORT */
/* How to translate the characters in the pattern. */
RE_TRANSLATE_TYPE translate = bufp->translate;
command. This makes it possible to tell if a new exact-match
character can be added to that command or if the character requires
a new `exactn' command. */
- unsigned char *pending_exact = 0;
+ US_CHAR_TYPE *pending_exact = 0;
/* Address of start of the most recently finished expression.
This tells, e.g., postfix * where to find the start of its
operand. Reset at the beginning of groups and alternatives. */
- unsigned char *laststart = 0;
+ US_CHAR_TYPE *laststart = 0;
/* Address of beginning of regexp, or inside of last group. */
- unsigned char *begalt;
-
- /* Place in the uncompiled pattern (i.e., the {) to
- which to go back if the interval is invalid. */
- const char *beg_interval;
+ US_CHAR_TYPE *begalt;
/* Address of the place where a forward jump should go to the end of
the containing expression. Each alternative of an `or' -- except the
last -- ends with a forward jump of this sort. */
- unsigned char *fixup_alt_jump = 0;
+ US_CHAR_TYPE *fixup_alt_jump = 0;
/* Counts open-groups as they are encountered. Remembered for the
matching close-group on the compile stack, so the same register
number is put in the stop_memory as the start_memory. */
regnum_t regnum = 0;
+#ifdef MBS_SUPPORT
+ /* Initialize the wchar_t PATTERN and offset_buffer. */
+ p = pend = pattern = TALLOC(csize + 1, CHAR_TYPE);
+ mbs_offset = TALLOC(csize + 1, int);
+ is_binary = TALLOC(csize + 1, char);
+ if (pattern == NULL || mbs_offset == NULL || is_binary == NULL)
+ {
+ free(pattern);
+ free(mbs_offset);
+ free(is_binary);
+ return REG_ESPACE;
+ }
+ pattern[csize] = L'\0'; /* sentinel */
+ size = convert_mbs_to_wcs(pattern, cpattern, csize, mbs_offset, is_binary);
+ pend = p + size;
+ if (size < 0)
+ {
+ free(pattern);
+ free(mbs_offset);
+ free(is_binary);
+ return REG_BADPAT;
+ }
+#endif
+
#ifdef DEBUG
DEBUG_PRINT1 ("\nCompiling pattern: ");
if (debug)
unsigned debug_count;
for (debug_count = 0; debug_count < size; debug_count++)
- putchar (pattern[debug_count]);
+ PUT_CHAR (pattern[debug_count]);
putchar ('\n');
}
#endif /* DEBUG */
/* Initialize the compile stack. */
compile_stack.stack = TALLOC (INIT_COMPILE_STACK_SIZE, compile_stack_elt_t);
if (compile_stack.stack == NULL)
- return REG_ESPACE;
+ {
+#ifdef MBS_SUPPORT
+ free(pattern);
+ free(mbs_offset);
+ free(is_binary);
+#endif
+ return REG_ESPACE;
+ }
compile_stack.size = INIT_COMPILE_STACK_SIZE;
compile_stack.avail = 0;
{ /* If zero allocated, but buffer is non-null, try to realloc
enough space. This loses if buffer's address is bogus, but
that is the user's responsibility. */
- RETALLOC (bufp->buffer, INIT_BUF_SIZE, unsigned char);
+#ifdef MBS_SUPPORT
+ /* Free bufp->buffer and allocate an array for wchar_t pattern
+ buffer. */
+ free(bufp->buffer);
+ COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE/sizeof(US_CHAR_TYPE),
+ US_CHAR_TYPE);
+#else
+ RETALLOC (COMPILED_BUFFER_VAR, INIT_BUF_SIZE, US_CHAR_TYPE);
+#endif /* MBS_SUPPORT */
}
else
{ /* Caller did not allocate a buffer. Do it for them. */
- bufp->buffer = TALLOC (INIT_BUF_SIZE, unsigned char);
+ COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE / sizeof(US_CHAR_TYPE),
+ US_CHAR_TYPE);
}
- if (!bufp->buffer) FREE_STACK_RETURN (REG_ESPACE);
+ if (!COMPILED_BUFFER_VAR) FREE_STACK_RETURN (REG_ESPACE);
+#ifdef MBS_SUPPORT
+ bufp->buffer = (char*)COMPILED_BUFFER_VAR;
+#endif /* MBS_SUPPORT */
bufp->allocated = INIT_BUF_SIZE;
}
+#ifdef MBS_SUPPORT
+ else
+ COMPILED_BUFFER_VAR = (US_CHAR_TYPE*) bufp->buffer;
+#endif
- begalt = b = bufp->buffer;
+ begalt = b = COMPILED_BUFFER_VAR;
/* Loop through the uncompiled pattern until we're at the end. */
while (p != pend)
assert (p - 1 > pattern);
/* Allocate the space for the jump. */
- GET_BUFFER_SPACE (3);
+ GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
/* We know we are not at the first character of the pattern,
because laststart was nonzero. And we've already
}
else
/* Anything else. */
- STORE_JUMP (maybe_pop_jump, b, laststart - 3);
+ STORE_JUMP (maybe_pop_jump, b, laststart -
+ (1 + OFFSET_ADDRESS_SIZE));
/* We've added more stuff to the buffer. */
- b += 3;
+ b += 1 + OFFSET_ADDRESS_SIZE;
}
/* On failure, jump from laststart to b + 3, which will be the
end of the buffer after this jump is inserted. */
- GET_BUFFER_SPACE (3);
+ /* ifdef MBS_SUPPORT, 'b + 1 + OFFSET_ADDRESS_SIZE' instead of
+ 'b + 3'. */
+ GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
INSERT_JUMP (keep_string_p ? on_failure_keep_string_jump
: on_failure_jump,
- laststart, b + 3);
+ laststart, b + 1 + OFFSET_ADDRESS_SIZE);
pending_exact = 0;
- b += 3;
+ b += 1 + OFFSET_ADDRESS_SIZE;
if (!zero_times_ok)
{
`on_failure_jump' instruction of the loop. This
effects a skip over that instruction the first time
we hit that loop. */
- GET_BUFFER_SPACE (3);
- INSERT_JUMP (dummy_failure_jump, laststart, laststart + 6);
- b += 3;
+ GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
+ INSERT_JUMP (dummy_failure_jump, laststart, laststart +
+ 2 + 2 * OFFSET_ADDRESS_SIZE);
+ b += 1 + OFFSET_ADDRESS_SIZE;
}
}
break;
case '[':
{
boolean had_char_class = false;
-
+#ifdef MBS_SUPPORT
+ CHAR_TYPE range_start = 0xffffffff;
+#else
+ unsigned int range_start = 0xffffffff;
+#endif
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+#ifdef MBS_SUPPORT
+ /* We assume a charset(_not) structure as a wchar_t array.
+ charset[0] = (re_opcode_t) charset(_not)
+ charset[1] = l (= length of char_classes)
+ charset[2] = m (= length of collating_symbols)
+ charset[3] = n (= length of equivalence_classes)
+ charset[4] = o (= length of char_ranges)
+ charset[5] = p (= length of chars)
+
+ charset[6] = char_class (wctype_t)
+ charset[6+CHAR_CLASS_SIZE] = char_class (wctype_t)
+ ...
+ charset[l+5] = char_class (wctype_t)
+
+ charset[l+6] = collating_symbol (wchar_t)
+ ...
+ charset[l+m+5] = collating_symbol (wchar_t)
+ ifdef _LIBC we use the index if
+ _NL_COLLATE_SYMB_EXTRAMB instead of
+ wchar_t string.
+
+ charset[l+m+6] = equivalence_classes (wchar_t)
+ ...
+ charset[l+m+n+5] = equivalence_classes (wchar_t)
+ ifdef _LIBC we use the index in
+ _NL_COLLATE_WEIGHT instead of
+ wchar_t string.
+
+ charset[l+m+n+6] = range_start
+ charset[l+m+n+7] = range_end
+ ...
+ charset[l+m+n+2o+4] = range_start
+ charset[l+m+n+2o+5] = range_end
+ ifdef _LIBC we use the value looked up
+ in _NL_COLLATE_COLLSEQ instead of
+ wchar_t character.
+
+ charset[l+m+n+2o+6] = char
+ ...
+ charset[l+m+n+2o+p+5] = char
+
+ */
+
+ /* We need at least 6 spaces: the opcode, the length of
+ char_classes, the length of collating_symbols, the length of
+ equivalence_classes, the length of char_ranges, the length of
+ chars. */
+ GET_BUFFER_SPACE (6);
+
+ /* Save b as laststart. And We use laststart as the pointer
+ to the first element of the charset here.
+ In other words, laststart[i] indicates charset[i]. */
+ laststart = b;
+
+ /* We test `*p == '^' twice, instead of using an if
+ statement, so we only need one BUF_PUSH. */
+ BUF_PUSH (*p == '^' ? charset_not : charset);
+ if (*p == '^')
+ p++;
+
+ /* Push the length of char_classes, the length of
+ collating_symbols, the length of equivalence_classes, the
+ length of char_ranges and the length of chars. */
+ BUF_PUSH_3 (0, 0, 0);
+ BUF_PUSH_2 (0, 0);
+
+ /* Remember the first position in the bracket expression. */
+ p1 = p;
+
+ /* charset_not matches newline according to a syntax bit. */
+ if ((re_opcode_t) b[-6] == charset_not
+ && (syntax & RE_HAT_LISTS_NOT_NEWLINE))
+ {
+ BUF_PUSH('\n');
+ laststart[5]++; /* Update the length of characters */
+ }
+
+ /* Read in characters and ranges, setting map bits. */
+ for (;;)
+ {
+ if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+
+ PATFETCH (c);
+
+ /* \ might escape characters inside [...] and [^...]. */
+ if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\')
+ {
+ if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
+
+ PATFETCH (c1);
+ BUF_PUSH(c1);
+ laststart[5]++; /* Update the length of chars */
+ range_start = c1;
+ continue;
+ }
+
+ /* Could be the end of the bracket expression. If it's
+ not (i.e., when the bracket expression is `[]' so
+ far), the ']' character bit gets set way below. */
+ if (c == ']' && p != p1 + 1)
+ break;
+
+ /* Look ahead to see if it's a range when the last thing
+ was a character class. */
+ if (had_char_class && c == '-' && *p != ']')
+ FREE_STACK_RETURN (REG_ERANGE);
+
+ /* Look ahead to see if it's a range when the last thing
+ was a character: if this is a hyphen not at the
+ beginning or the end of a list, then it's the range
+ operator. */
+ if (c == '-'
+ && !(p - 2 >= pattern && p[-2] == '[')
+ && !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^')
+ && *p != ']')
+ {
+ reg_errcode_t ret;
+ /* Allocate the space for range_start and range_end. */
+ GET_BUFFER_SPACE (2);
+ /* Update the pointer to indicate end of buffer. */
+ b += 2;
+ ret = compile_range (range_start, &p, pend, translate,
+ syntax, b, laststart);
+ if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
+ range_start = 0xffffffff;
+ }
+ else if (p[0] == '-' && p[1] != ']')
+ { /* This handles ranges made up of characters only. */
+ reg_errcode_t ret;
+
+ /* Move past the `-'. */
+ PATFETCH (c1);
+ /* Allocate the space for range_start and range_end. */
+ GET_BUFFER_SPACE (2);
+ /* Update the pointer to indicate end of buffer. */
+ b += 2;
+ ret = compile_range (c, &p, pend, translate, syntax, b,
+ laststart);
+ if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
+ range_start = 0xffffffff;
+ }
+
+ /* See if we're at the beginning of a possible character
+ class. */
+ else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':')
+ { /* Leave room for the null. */
+ char str[CHAR_CLASS_MAX_LENGTH + 1];
+
+ PATFETCH (c);
+ c1 = 0;
+
+ /* If pattern is `[[:'. */
+ if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+
+ for (;;)
+ {
+ PATFETCH (c);
+ if ((c == ':' && *p == ']') || p == pend)
+ break;
+ if (c1 < CHAR_CLASS_MAX_LENGTH)
+ str[c1++] = c;
+ else
+ /* This is in any case an invalid class name. */
+ str[0] = '\0';
+ }
+ str[c1] = '\0';
+
+ /* If isn't a word bracketed by `[:' and `:]':
+ undo the ending character, the letters, and leave
+ the leading `:' and `[' (but store them as character). */
+ if (c == ':' && *p == ']')
+ {
+ wctype_t wt;
+ uintptr_t alignedp;
+
+ /* Query the character class as wctype_t. */
+ wt = IS_CHAR_CLASS (str);
+ if (wt == 0)
+ FREE_STACK_RETURN (REG_ECTYPE);
+
+ /* Throw away the ] at the end of the character
+ class. */
+ PATFETCH (c);
+
+ if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+
+ /* Allocate the space for character class. */
+ GET_BUFFER_SPACE(CHAR_CLASS_SIZE);
+ /* Update the pointer to indicate end of buffer. */
+ b += CHAR_CLASS_SIZE;
+ /* Move data which follow character classes
+ not to violate the data. */
+ insert_space(CHAR_CLASS_SIZE,
+ laststart + 6 + laststart[1],
+ b - 1);
+ alignedp = ((uintptr_t)(laststart + 6 + laststart[1])
+ + __alignof__(wctype_t) - 1)
+ & ~(uintptr_t)(__alignof__(wctype_t) - 1);
+ /* Store the character class. */
+ *((wctype_t*)alignedp) = wt;
+ /* Update length of char_classes */
+ laststart[1] += CHAR_CLASS_SIZE;
+
+ had_char_class = true;
+ }
+ else
+ {
+ c1++;
+ while (c1--)
+ PATUNFETCH;
+ BUF_PUSH ('[');
+ BUF_PUSH (':');
+ laststart[5] += 2; /* Update the length of characters */
+ range_start = ':';
+ had_char_class = false;
+ }
+ }
+ else if (syntax & RE_CHAR_CLASSES && c == '[' && (*p == '='
+ || *p == '.'))
+ {
+ CHAR_TYPE str[128]; /* Should be large enough. */
+ CHAR_TYPE delim = *p; /* '=' or '.' */
+# ifdef _LIBC
+ uint32_t nrules =
+ _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+# endif
+ PATFETCH (c);
+ c1 = 0;
+
+ /* If pattern is `[[=' or '[[.'. */
+ if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+
+ for (;;)
+ {
+ PATFETCH (c);
+ if ((c == delim && *p == ']') || p == pend)
+ break;
+ if (c1 < sizeof (str) - 1)
+ str[c1++] = c;
+ else
+ /* This is in any case an invalid class name. */
+ str[0] = '\0';
+ }
+ str[c1] = '\0';
+
+ if (c == delim && *p == ']' && str[0] != '\0')
+ {
+ unsigned int i, offset;
+ /* If we have no collation data we use the default
+ collation in which each character is in a class
+ by itself. It also means that ASCII is the
+ character set and therefore we cannot have character
+ with more than one byte in the multibyte
+ representation. */
+
+ /* If not defined _LIBC, we push the name and
+ `\0' for the sake of matching performance. */
+ int datasize = c1 + 1;
+
+# ifdef _LIBC
+ int32_t idx = 0;
+ if (nrules == 0)
+# endif
+ {
+ if (c1 != 1)
+ FREE_STACK_RETURN (REG_ECOLLATE);
+ }
+# ifdef _LIBC
+ else
+ {
+ const int32_t *table;
+ const int32_t *weights;
+ const int32_t *extra;
+ const int32_t *indirect;
+ wint_t *cp;
+
+ /* This #include defines a local function! */
+# include <locale/weightwc.h>
+
+ if(delim == '=')
+ {
+ /* We push the index for equivalence class. */
+ cp = (wint_t*)str;
+
+ 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);
+
+ idx = findidx ((const wint_t**)&cp);
+ if (idx == 0 || cp < (wint_t*) str + c1)
+ /* This is no valid character. */
+ FREE_STACK_RETURN (REG_ECOLLATE);
+
+ str[0] = (wchar_t)idx;
+ }
+ else /* delim == '.' */
+ {
+ /* We push collation sequence value
+ for collating symbol. */
+ int32_t table_size;
+ const int32_t *symb_table;
+ const unsigned char *extra;
+ int32_t idx;
+ int32_t elem;
+ int32_t second;
+ int32_t hash;
+ char char_str[c1];
+
+ /* 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 (i = 0; i < c1; ++i)
+ char_str[i] = str[i];
+
+ 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 (char_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)
+ {
+ /* Compute the index of the byte sequence
+ in the table. */
+ idx += 1 + extra[idx];
+ /* Adjust for the alignment. */
+ idx = (idx + 3) & ~4;
+
+ str[0] = (wchar_t) idx + 4;
+ }
+ else if (symb_table[2 * elem] == 0 && c1 == 1)
+ {
+ /* No valid character. Match it as a
+ single byte character. */
+ had_char_class = false;
+ BUF_PUSH(str[0]);
+ /* Update the length of characters */
+ laststart[5]++;
+ range_start = str[0];
+
+ /* Throw away the ] at the end of the
+ collating symbol. */
+ PATFETCH (c);
+ /* exit from the switch block. */
+ continue;
+ }
+ else
+ FREE_STACK_RETURN (REG_ECOLLATE);
+ }
+ datasize = 1;
+ }
+# endif
+ /* Throw away the ] at the end of the equivalence
+ class (or collating symbol). */
+ PATFETCH (c);
+
+ /* Allocate the space for the equivalence class
+ (or collating symbol) (and '\0' if needed). */
+ GET_BUFFER_SPACE(datasize);
+ /* Update the pointer to indicate end of buffer. */
+ b += datasize;
+
+ if (delim == '=')
+ { /* equivalence class */
+ /* Calculate the offset of char_ranges,
+ which is next to equivalence_classes. */
+ offset = laststart[1] + laststart[2]
+ + laststart[3] +6;
+ /* Insert space. */
+ insert_space(datasize, laststart + offset, b - 1);
+
+ /* Write the equivalence_class and \0. */
+ for (i = 0 ; i < datasize ; i++)
+ laststart[offset + i] = str[i];
+
+ /* Update the length of equivalence_classes. */
+ laststart[3] += datasize;
+ had_char_class = true;
+ }
+ else /* delim == '.' */
+ { /* collating symbol */
+ /* Calculate the offset of the equivalence_classes,
+ which is next to collating_symbols. */
+ offset = laststart[1] + laststart[2] + 6;
+ /* Insert space and write the collationg_symbol
+ and \0. */
+ insert_space(datasize, laststart + offset, b-1);
+ for (i = 0 ; i < datasize ; i++)
+ laststart[offset + i] = str[i];
+
+ /* In re_match_2_internal if range_start < -1, we
+ assume -range_start is the offset of the
+ collating symbol which is specified as
+ the character of the range start. So we assign
+ -(laststart[1] + laststart[2] + 6) to
+ range_start. */
+ range_start = -(laststart[1] + laststart[2] + 6);
+ /* Update the length of collating_symbol. */
+ laststart[2] += datasize;
+ had_char_class = false;
+ }
+ }
+ else
+ {
+ c1++;
+ while (c1--)
+ PATUNFETCH;
+ BUF_PUSH ('[');
+ BUF_PUSH (delim);
+ laststart[5] += 2; /* Update the length of characters */
+ range_start = delim;
+ had_char_class = false;
+ }
+ }
+ else
+ {
+ had_char_class = false;
+ BUF_PUSH(c);
+ laststart[5]++; /* Update the length of characters */
+ range_start = c;
+ }
+ }
+
+#else /* not MBS_SUPPORT */
/* Ensure that we have enough space to push a charset: the
opcode, the length count, and the bitset; 34 bytes in all. */
GET_BUFFER_SPACE (34);
PATFETCH (c1);
SET_LIST_BIT (c1);
+ range_start = c1;
continue;
}
&& *p != ']')
{
reg_errcode_t ret
- = compile_range (&p, pend, translate, syntax, b);
+ = compile_range (range_start, &p, pend, translate,
+ syntax, b);
if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
+ range_start = 0xffffffff;
}
else if (p[0] == '-' && p[1] != ']')
/* Move past the `-'. */
PATFETCH (c1);
- ret = compile_range (&p, pend, translate, syntax, b);
+ ret = compile_range (c, &p, pend, translate, syntax, b);
if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
+ range_start = 0xffffffff;
}
/* See if we're at the beginning of a possible character
for (;;)
{
PATFETCH (c);
- if (c == ':' || c == ']' || p == pend
- || c1 == CHAR_CLASS_MAX_LENGTH)
+ if ((c == ':' && *p == ']') || p == pend)
break;
- str[c1++] = c;
+ if (c1 < CHAR_CLASS_MAX_LENGTH)
+ str[c1++] = c;
+ else
+ /* This is in any case an invalid class name. */
+ str[0] = '\0';
}
str[c1] = '\0';
- /* If isn't a word bracketed by `[:' and:`]':
+ /* If isn't a word bracketed by `[:' and `:]':
undo the ending character, the letters, and leave
the leading `:' and `[' (but set bits for them). */
if (c == ':' && *p == ']')
{
-#if WIDE_CHAR_SUPPORT
+# if defined _LIBC || WIDE_CHAR_SUPPORT
boolean is_lower = STREQ (str, "lower");
boolean is_upper = STREQ (str, "upper");
wctype_t wt;
int ch;
- wt = wctype (str);
+ wt = IS_CHAR_CLASS (str);
if (wt == 0)
FREE_STACK_RETURN (REG_ECTYPE);
for (ch = 0; ch < 1 << BYTEWIDTH; ++ch)
{
+# ifdef _LIBC
+ if (__iswctype (__btowc (ch), wt))
+ SET_LIST_BIT (ch);
+# else
if (iswctype (btowc (ch), wt))
SET_LIST_BIT (ch);
+# endif
if (translate && (is_upper || is_lower)
&& (ISUPPER (ch) || ISLOWER (ch)))
}
had_char_class = true;
-#else
+# else
int ch;
boolean is_alnum = STREQ (str, "alnum");
boolean is_alpha = STREQ (str, "alpha");
SET_LIST_BIT (ch);
}
had_char_class = true;
-#endif /* libc || wctype.h */
+# endif /* libc || wctype.h */
}
else
{
PATUNFETCH;
SET_LIST_BIT ('[');
SET_LIST_BIT (':');
+ range_start = ':';
had_char_class = false;
}
}
+ else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == '=')
+ {
+ unsigned char str[MB_LEN_MAX + 1];
+# ifdef _LIBC
+ uint32_t nrules =
+ _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+# endif
+
+ PATFETCH (c);
+ c1 = 0;
+
+ /* If pattern is `[[='. */
+ if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+
+ for (;;)
+ {
+ PATFETCH (c);
+ if ((c == '=' && *p == ']') || p == pend)
+ break;
+ if (c1 < MB_LEN_MAX)
+ str[c1++] = c;
+ else
+ /* This is in any case an invalid class name. */
+ str[0] = '\0';
+ }
+ str[c1] = '\0';
+
+ if (c == '=' && *p == ']' && str[0] != '\0')
+ {
+ /* If we have no collation data we use the default
+ collation in which each character is in a class
+ by itself. It also means that ASCII is the
+ character set and therefore we cannot have character
+ with more than one byte in the multibyte
+ representation. */
+# ifdef _LIBC
+ if (nrules == 0)
+# endif
+ {
+ if (c1 != 1)
+ FREE_STACK_RETURN (REG_ECOLLATE);
+
+ /* Throw away the ] at the end of the equivalence
+ class. */
+ PATFETCH (c);
+
+ /* Set the bit for the character. */
+ SET_LIST_BIT (str[0]);
+ }
+# ifdef _LIBC
+ else
+ {
+ /* Try to match the byte sequence in `str' against
+ those known to the collate implementation.
+ First find out whether the bytes in `str' are
+ actually from exactly one character. */
+ const int32_t *table;
+ const unsigned char *weights;
+ const unsigned char *extra;
+ const int32_t *indirect;
+ int32_t idx;
+ const unsigned char *cp = str;
+ int ch;
+
+ /* This #include defines a local function! */
+# include <locale/weight.h>
+
+ 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);
+
+ idx = findidx (&cp);
+ if (idx == 0 || cp < str + c1)
+ /* This is no valid character. */
+ FREE_STACK_RETURN (REG_ECOLLATE);
+
+ /* Throw away the ] at the end of the equivalence
+ class. */
+ PATFETCH (c);
+
+ /* Now we have to go throught the whole table
+ and find all characters which have the same
+ first level weight.
+
+ XXX Note that this is not entirely correct.
+ we would have to match multibyte sequences
+ but this is not possible with the current
+ implementation. */
+ for (ch = 1; ch < 256; ++ch)
+ /* XXX This test would have to be changed if we
+ would allow matching multibyte sequences. */
+ if (table[ch] > 0)
+ {
+ int32_t idx2 = table[ch];
+ size_t len = weights[idx2];
+
+ /* Test whether the lenghts match. */
+ if (weights[idx] == len)
+ {
+ /* They do. New compare the bytes of
+ the weight. */
+ size_t cnt = 0;
+
+ while (cnt < len
+ && (weights[idx + 1 + cnt]
+ == weights[idx2 + 1 + cnt]))
+ ++cnt;
+
+ if (cnt == len)
+ /* They match. Mark the character as
+ acceptable. */
+ SET_LIST_BIT (ch);
+ }
+ }
+ }
+# endif
+ had_char_class = true;
+ }
+ else
+ {
+ c1++;
+ while (c1--)
+ PATUNFETCH;
+ SET_LIST_BIT ('[');
+ SET_LIST_BIT ('=');
+ range_start = '=';
+ had_char_class = false;
+ }
+ }
+ else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == '.')
+ {
+ unsigned char str[128]; /* Should be large enough. */
+# ifdef _LIBC
+ uint32_t nrules =
+ _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+# endif
+
+ PATFETCH (c);
+ c1 = 0;
+
+ /* If pattern is `[[.'. */
+ if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
+
+ for (;;)
+ {
+ PATFETCH (c);
+ if ((c == '.' && *p == ']') || p == pend)
+ break;
+ if (c1 < sizeof (str))
+ str[c1++] = c;
+ else
+ /* This is in any case an invalid class name. */
+ str[0] = '\0';
+ }
+ str[c1] = '\0';
+
+ if (c == '.' && *p == ']' && str[0] != '\0')
+ {
+ /* If we have no collation data we use the default
+ collation in which each character is the name
+ for its own class which contains only the one
+ character. It also means that ASCII is the
+ character set and therefore we cannot have character
+ with more than one byte in the multibyte
+ representation. */
+# ifdef _LIBC
+ if (nrules == 0)
+# endif
+ {
+ if (c1 != 1)
+ FREE_STACK_RETURN (REG_ECOLLATE);
+
+ /* Throw away the ] at the end of the equivalence
+ class. */
+ PATFETCH (c);
+
+ /* Set the bit for the character. */
+ SET_LIST_BIT (str[0]);
+ range_start = ((const unsigned char *) str)[0];
+ }
+# ifdef _LIBC
+ else
+ {
+ /* Try to match the byte sequence in `str' against
+ those known to the collate implementation.
+ First find out whether the bytes in `str' are
+ actually from exactly one character. */
+ int32_t table_size;
+ const int32_t *symb_table;
+ const unsigned char *extra;
+ int32_t idx;
+ int32_t elem;
+ int32_t second;
+ int32_t hash;
+
+ 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)
+ /* This is no valid character. */
+ FREE_STACK_RETURN (REG_ECOLLATE);
+
+ /* Throw away the ] at the end of the equivalence
+ class. */
+ PATFETCH (c);
+
+ /* Now add the multibyte character(s) we found
+ to the accept list.
+
+ XXX Note that this is not entirely correct.
+ we would have to match multibyte sequences
+ but this is not possible with the current
+ implementation. Also, we have to match
+ collating symbols, which expand to more than
+ one file, as a whole and not allow the
+ individual bytes. */
+ c1 = extra[idx++];
+ if (c1 == 1)
+ range_start = extra[idx];
+ while (c1-- > 0)
+ {
+ SET_LIST_BIT (extra[idx]);
+ ++idx;
+ }
+ }
+# endif
+ had_char_class = false;
+ }
+ else
+ {
+ c1++;
+ while (c1--)
+ PATUNFETCH;
+ SET_LIST_BIT ('[');
+ SET_LIST_BIT ('.');
+ range_start = '.';
+ had_char_class = false;
+ }
+ }
else
{
had_char_class = false;
SET_LIST_BIT (c);
+ range_start = c;
}
}
while ((int) b[-1] > 0 && b[b[-1] - 1] == 0)
b[-1]--;
b += b[-1];
+#endif /* MBS_SUPPORT */
}
break;
group. They are all relative offsets, so that if the
whole pattern moves because of realloc, they will still
be valid. */
- COMPILE_STACK_TOP.begalt_offset = begalt - bufp->buffer;
+ COMPILE_STACK_TOP.begalt_offset = begalt - COMPILED_BUFFER_VAR;
COMPILE_STACK_TOP.fixup_alt_jump
- = fixup_alt_jump ? fixup_alt_jump - bufp->buffer + 1 : 0;
- COMPILE_STACK_TOP.laststart_offset = b - bufp->buffer;
+ = fixup_alt_jump ? fixup_alt_jump - COMPILED_BUFFER_VAR + 1 : 0;
+ COMPILE_STACK_TOP.laststart_offset = b - COMPILED_BUFFER_VAR;
COMPILE_STACK_TOP.regnum = regnum;
/* We will eventually replace the 0 with the number of
represent in the compiled pattern. */
if (regnum <= MAX_REGNUM)
{
- COMPILE_STACK_TOP.inner_group_offset = b - bufp->buffer + 2;
+ COMPILE_STACK_TOP.inner_group_offset = b
+ - COMPILED_BUFFER_VAR + 2;
BUF_PUSH_3 (start_memory, regnum, 0);
}
regnum_t this_group_regnum;
compile_stack.avail--;
- begalt = bufp->buffer + COMPILE_STACK_TOP.begalt_offset;
+ begalt = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.begalt_offset;
fixup_alt_jump
= COMPILE_STACK_TOP.fixup_alt_jump
- ? bufp->buffer + COMPILE_STACK_TOP.fixup_alt_jump - 1
+ ? COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.fixup_alt_jump - 1
: 0;
- laststart = bufp->buffer + COMPILE_STACK_TOP.laststart_offset;
+ laststart = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.laststart_offset;
this_group_regnum = COMPILE_STACK_TOP.regnum;
/* If we've reached MAX_REGNUM groups, then this open
won't actually generate any code, so we'll have to
groups were inside this one. */
if (this_group_regnum <= MAX_REGNUM)
{
- unsigned char *inner_group_loc
- = bufp->buffer + COMPILE_STACK_TOP.inner_group_offset;
+ US_CHAR_TYPE *inner_group_loc
+ = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.inner_group_offset;
*inner_group_loc = regnum - this_group_regnum;
BUF_PUSH_3 (stop_memory, this_group_regnum,
/* Insert before the previous alternative a jump which
jumps to this alternative if the former fails. */
- GET_BUFFER_SPACE (3);
- INSERT_JUMP (on_failure_jump, begalt, b + 6);
+ GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
+ INSERT_JUMP (on_failure_jump, begalt,
+ b + 2 + 2 * OFFSET_ADDRESS_SIZE);
pending_exact = 0;
- b += 3;
+ b += 1 + OFFSET_ADDRESS_SIZE;
/* The alternative before this one has a jump after it
which gets executed if it gets matched. Adjust that
to be filled in later either by next alternative or
when know we're at the end of a series of alternatives. */
fixup_alt_jump = b;
- GET_BUFFER_SPACE (3);
- b += 3;
+ GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
+ b += 1 + OFFSET_ADDRESS_SIZE;
laststart = 0;
begalt = b;
if (!(syntax & RE_INTERVALS)
/* If we're at `\{' and it's not the open-interval
operator. */
- || ((syntax & RE_INTERVALS) && (syntax & RE_NO_BK_BRACES))
- || (p - 2 == pattern && p == pend))
+ || (syntax & RE_NO_BK_BRACES))
goto normal_backslash;
handle_interval:
/* At least (most) this many matches must be made. */
int lower_bound = -1, upper_bound = -1;
- beg_interval = p - 1;
+ /* Place in the uncompiled pattern (i.e., just after
+ the '{') to go back to if the interval is invalid. */
+ const CHAR_TYPE *beg_interval = p;
if (p == pend)
- {
- if (syntax & RE_NO_BK_BRACES)
- goto unfetch_interval;
- else
- FREE_STACK_RETURN (REG_EBRACE);
- }
+ goto invalid_interval;
GET_UNSIGNED_NUMBER (lower_bound);
if (c == ',')
{
GET_UNSIGNED_NUMBER (upper_bound);
- if (upper_bound < 0) upper_bound = RE_DUP_MAX;
+ if (upper_bound < 0)
+ upper_bound = RE_DUP_MAX;
}
else
/* Interval such as `{1}' => match exactly once. */
upper_bound = lower_bound;
- if (lower_bound < 0 || upper_bound > RE_DUP_MAX
- || lower_bound > upper_bound)
- {
- if (syntax & RE_NO_BK_BRACES)
- goto unfetch_interval;
- else
- FREE_STACK_RETURN (REG_BADBR);
- }
+ if (! (0 <= lower_bound && lower_bound <= upper_bound))
+ goto invalid_interval;
if (!(syntax & RE_NO_BK_BRACES))
{
- if (c != '\\') FREE_STACK_RETURN (REG_EBRACE);
-
+ if (c != '\\' || p == pend)
+ goto invalid_interval;
PATFETCH (c);
}
if (c != '}')
- {
- if (syntax & RE_NO_BK_BRACES)
- goto unfetch_interval;
- else
- FREE_STACK_RETURN (REG_BADBR);
- }
-
- /* We just parsed a valid interval. */
+ goto invalid_interval;
/* If it's invalid to have no preceding re. */
if (!laststart)
{
- if (syntax & RE_CONTEXT_INVALID_OPS)
+ if (syntax & RE_CONTEXT_INVALID_OPS
+ && !(syntax & RE_INVALID_INTERVAL_ORD))
FREE_STACK_RETURN (REG_BADRPT);
else if (syntax & RE_CONTEXT_INDEP_OPS)
laststart = b;
goto unfetch_interval;
}
+ /* We just parsed a valid interval. */
+
+ if (RE_DUP_MAX < upper_bound)
+ FREE_STACK_RETURN (REG_BADBR);
+
/* If the upper bound is zero, don't want to succeed at
all; jump from `laststart' to `b + 3', which will be
- the end of the buffer after we insert the jump. */
+ the end of the buffer after we insert the jump. */
+ /* ifdef MBS_SUPPORT, 'b + 1 + OFFSET_ADDRESS_SIZE'
+ instead of 'b + 3'. */
if (upper_bound == 0)
{
- GET_BUFFER_SPACE (3);
- INSERT_JUMP (jump, laststart, b + 3);
- b += 3;
+ GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
+ INSERT_JUMP (jump, laststart, b + 1
+ + OFFSET_ADDRESS_SIZE);
+ b += 1 + OFFSET_ADDRESS_SIZE;
}
/* Otherwise, we have a nontrivial interval. When
else
{ /* If the upper bound is > 1, we need to insert
more at the end of the loop. */
- unsigned nbytes = 10 + (upper_bound > 1) * 10;
+ unsigned nbytes = 2 + 4 * OFFSET_ADDRESS_SIZE +
+ (upper_bound > 1) * (2 + 4 * OFFSET_ADDRESS_SIZE);
GET_BUFFER_SPACE (nbytes);
because `re_compile_fastmap' needs to know.
Jump to the `jump_n' we might insert below. */
INSERT_JUMP2 (succeed_n, laststart,
- b + 5 + (upper_bound > 1) * 5,
- lower_bound);
- b += 5;
+ b + 1 + 2 * OFFSET_ADDRESS_SIZE
+ + (upper_bound > 1) * (1 + 2 * OFFSET_ADDRESS_SIZE)
+ , lower_bound);
+ b += 1 + 2 * OFFSET_ADDRESS_SIZE;
/* Code to initialize the lower bound. Insert
before the `succeed_n'. The `5' is the last two
bytes of this `set_number_at', plus 3 bytes of
the following `succeed_n'. */
- insert_op2 (set_number_at, laststart, 5, lower_bound, b);
- b += 5;
+ /* ifdef MBS_SUPPORT, The '1+2*OFFSET_ADDRESS_SIZE'
+ is the 'set_number_at', plus '1+OFFSET_ADDRESS_SIZE'
+ of the following `succeed_n'. */
+ insert_op2 (set_number_at, laststart, 1
+ + 2 * OFFSET_ADDRESS_SIZE, lower_bound, b);
+ b += 1 + 2 * OFFSET_ADDRESS_SIZE;
if (upper_bound > 1)
{ /* More than one repetition is allowed, so
When we've reached this during matching,
we'll have matched the interval once, so
jump back only `upper_bound - 1' times. */
- STORE_JUMP2 (jump_n, b, laststart + 5,
+ STORE_JUMP2 (jump_n, b, laststart
+ + 2 * OFFSET_ADDRESS_SIZE + 1,
upper_bound - 1);
- b += 5;
+ b += 1 + 2 * OFFSET_ADDRESS_SIZE;
/* The location we want to set is the second
parameter of the `jump_n'; that is `b-2' as
reinitialize the bounds. */
insert_op2 (set_number_at, laststart, b - laststart,
upper_bound - 1, b);
- b += 5;
+ b += 1 + 2 * OFFSET_ADDRESS_SIZE;
}
}
pending_exact = 0;
- beg_interval = NULL;
- }
- break;
-
- unfetch_interval:
- /* If an invalid interval, match the characters as literals. */
- assert (beg_interval);
- p = beg_interval;
- beg_interval = NULL;
-
- /* normal_char and normal_backslash need `c'. */
- PATFETCH (c);
-
- if (!(syntax & RE_NO_BK_BRACES))
- {
- if (p > pattern && p[-1] == '\\')
- goto normal_backslash;
- }
- goto normal_char;
+ break;
+
+ invalid_interval:
+ if (!(syntax & RE_INVALID_INTERVAL_ORD))
+ FREE_STACK_RETURN (p == pend ? REG_EBRACE : REG_BADBR);
+ unfetch_interval:
+ /* Match the characters as literals. */
+ p = beg_interval;
+ c = '{';
+ if (syntax & RE_NO_BK_BRACES)
+ goto normal_char;
+ else
+ goto normal_backslash;
+ }
#ifdef emacs
/* There is no way to specify the before_dot and after_dot
case 'w':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
laststart = b;
BUF_PUSH (wordchar);
case 'W':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
laststart = b;
BUF_PUSH (notwordchar);
case '<':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (wordbeg);
break;
case '>':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (wordend);
break;
case 'b':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (wordbound);
break;
case 'B':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (notwordbound);
break;
case '`':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (begbuf);
break;
case '\'':
- if (re_syntax_options & RE_NO_GNU_OPS)
+ if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (endbuf);
break;
normal_char:
/* If no exactn currently being built. */
if (!pending_exact
+#ifdef MBS_SUPPORT
+ /* If last exactn handle binary(or character) and
+ new exactn handle character(or binary). */
+ || is_exactn_bin != is_binary[p - 1 - pattern]
+#endif /* MBS_SUPPORT */
/* If last exactn not at current position. */
|| pending_exact + *pending_exact + 1 != b
laststart = b;
+#ifdef MBS_SUPPORT
+ /* Is this exactn binary data or character? */
+ is_exactn_bin = is_binary[p - 1 - pattern];
+ if (is_exactn_bin)
+ BUF_PUSH_2 (exactn_bin, 0);
+ else
+ BUF_PUSH_2 (exactn, 0);
+#else
BUF_PUSH_2 (exactn, 0);
+#endif /* MBS_SUPPORT */
pending_exact = b - 1;
}
if (syntax & RE_NO_POSIX_BACKTRACKING)
BUF_PUSH (succeed);
+#ifdef MBS_SUPPORT
+ free (pattern);
+ free (mbs_offset);
+ free (is_binary);
+#endif
free (compile_stack.stack);
/* We have succeeded; set the length of the buffer. */
+#ifdef MBS_SUPPORT
+ bufp->used = (uintptr_t) b - (uintptr_t) COMPILED_BUFFER_VAR;
+#else
bufp->used = b - bufp->buffer;
+#endif
#ifdef DEBUG
if (debug)
/* Subroutines for `regex_compile'. */
/* Store OP at LOC followed by two-byte integer parameter ARG. */
+/* ifdef MBS_SUPPORT, integer parameter is 1 wchar_t. */
static void
store_op1 (op, loc, arg)
re_opcode_t op;
- unsigned char *loc;
+ US_CHAR_TYPE *loc;
int arg;
{
- *loc = (unsigned char) op;
+ *loc = (US_CHAR_TYPE) op;
STORE_NUMBER (loc + 1, arg);
}
/* Like `store_op1', but for two two-byte parameters ARG1 and ARG2. */
+/* ifdef MBS_SUPPORT, integer parameter is 1 wchar_t. */
static void
store_op2 (op, loc, arg1, arg2)
re_opcode_t op;
- unsigned char *loc;
+ US_CHAR_TYPE *loc;
int arg1, arg2;
{
- *loc = (unsigned char) op;
+ *loc = (US_CHAR_TYPE) op;
STORE_NUMBER (loc + 1, arg1);
- STORE_NUMBER (loc + 3, arg2);
+ STORE_NUMBER (loc + 1 + OFFSET_ADDRESS_SIZE, arg2);
}
/* Copy the bytes from LOC to END to open up three bytes of space at LOC
for OP followed by two-byte integer parameter ARG. */
+/* ifdef MBS_SUPPORT, integer parameter is 1 wchar_t. */
static void
insert_op1 (op, loc, arg, end)
re_opcode_t op;
- unsigned char *loc;
+ US_CHAR_TYPE *loc;
int arg;
- unsigned char *end;
+ US_CHAR_TYPE *end;
{
- register unsigned char *pfrom = end;
- register unsigned char *pto = end + 3;
+ register US_CHAR_TYPE *pfrom = end;
+ register US_CHAR_TYPE *pto = end + 1 + OFFSET_ADDRESS_SIZE;
while (pfrom != loc)
*--pto = *--pfrom;
/* Like `insert_op1', but for two two-byte parameters ARG1 and ARG2. */
+/* ifdef MBS_SUPPORT, integer parameter is 1 wchar_t. */
static void
insert_op2 (op, loc, arg1, arg2, end)
re_opcode_t op;
- unsigned char *loc;
+ US_CHAR_TYPE *loc;
int arg1, arg2;
- unsigned char *end;
+ US_CHAR_TYPE *end;
{
- register unsigned char *pfrom = end;
- register unsigned char *pto = end + 5;
+ register US_CHAR_TYPE *pfrom = end;
+ register US_CHAR_TYPE *pto = end + 1 + 2 * OFFSET_ADDRESS_SIZE;
while (pfrom != loc)
*--pto = *--pfrom;
static boolean
at_begline_loc_p (pattern, p, syntax)
- const char *pattern, *p;
+ const CHAR_TYPE *pattern, *p;
reg_syntax_t syntax;
{
- const char *prev = p - 2;
+ const CHAR_TYPE *prev = p - 2;
boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\';
return
static boolean
at_endline_loc_p (p, pend, syntax)
- const char *p, *pend;
+ const CHAR_TYPE *p, *pend;
reg_syntax_t syntax;
{
- const char *next = p;
+ const CHAR_TYPE *next = p;
boolean next_backslash = *next == '\\';
- const char *next_next = p + 1 < pend ? p + 1 : 0;
+ const CHAR_TYPE *next_next = p + 1 < pend ? p + 1 : 0;
return
/* Before a subexpression? */
}
-/* Returns true if REGNUM is in one of COMPILE_STACK's elements and
- false if it's not. */
+/* Returns true if REGNUM is in one of COMPILE_STACK's elements and
+ false if it's not. */
+
+static boolean
+group_in_compile_stack (compile_stack, regnum)
+ compile_stack_type compile_stack;
+ regnum_t regnum;
+{
+ int this_element;
+
+ for (this_element = compile_stack.avail - 1;
+ this_element >= 0;
+ this_element--)
+ if (compile_stack.stack[this_element].regnum == regnum)
+ return true;
+
+ return false;
+}
+
+#ifdef MBS_SUPPORT
+/* This insert space, which size is "num", into the pattern at "loc".
+ "end" must point the end of the allocated buffer. */
+static void
+insert_space (num, loc, end)
+ int num;
+ CHAR_TYPE *loc;
+ CHAR_TYPE *end;
+{
+ register CHAR_TYPE *pto = end;
+ register CHAR_TYPE *pfrom = end - num;
+
+ while (pfrom >= loc)
+ *pto-- = *pfrom--;
+}
+#endif /* MBS_SUPPORT */
+
+#ifdef MBS_SUPPORT
+static reg_errcode_t
+compile_range (range_start_char, p_ptr, pend, translate, syntax, b,
+ char_set)
+ CHAR_TYPE range_start_char;
+ const CHAR_TYPE **p_ptr, *pend;
+ CHAR_TYPE *char_set, *b;
+ RE_TRANSLATE_TYPE translate;
+ reg_syntax_t syntax;
+{
+ const CHAR_TYPE *p = *p_ptr;
+ CHAR_TYPE range_start, range_end;
+ reg_errcode_t ret;
+# ifdef _LIBC
+ uint32_t nrules;
+ uint32_t start_val, end_val;
+# endif
+ if (p == pend)
+ return REG_ERANGE;
+
+# ifdef _LIBC
+ nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+ if (nrules != 0)
+ {
+ const char *collseq = (const char *) _NL_CURRENT(LC_COLLATE,
+ _NL_COLLATE_COLLSEQWC);
+ const unsigned char *extra = (const unsigned char *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB);
-static boolean
-group_in_compile_stack (compile_stack, regnum)
- compile_stack_type compile_stack;
- regnum_t regnum;
-{
- int this_element;
+ if (range_start_char < -1)
+ {
+ /* range_start is a collating symbol. */
+ int32_t *wextra;
+ /* Retreive the index and get collation sequence value. */
+ wextra = (int32_t*)(extra + char_set[-range_start_char]);
+ start_val = wextra[1 + *wextra];
+ }
+ else
+ start_val = collseq_table_lookup(collseq, TRANSLATE(range_start_char));
- for (this_element = compile_stack.avail - 1;
- this_element >= 0;
- this_element--)
- if (compile_stack.stack[this_element].regnum == regnum)
- return true;
+ end_val = collseq_table_lookup (collseq, TRANSLATE (p[0]));
- return false;
-}
+ /* Report an error if the range is empty and the syntax prohibits
+ this. */
+ ret = ((syntax & RE_NO_EMPTY_RANGES)
+ && (start_val > end_val))? REG_ERANGE : REG_NOERROR;
+ /* Insert space to the end of the char_ranges. */
+ insert_space(2, b - char_set[5] - 2, b - 1);
+ *(b - char_set[5] - 2) = (wchar_t)start_val;
+ *(b - char_set[5] - 1) = (wchar_t)end_val;
+ char_set[4]++; /* ranges_index */
+ }
+ else
+# endif
+ {
+ range_start = (range_start_char >= 0)? TRANSLATE (range_start_char):
+ range_start_char;
+ range_end = TRANSLATE (p[0]);
+ /* Report an error if the range is empty and the syntax prohibits
+ this. */
+ ret = ((syntax & RE_NO_EMPTY_RANGES)
+ && (range_start > range_end))? REG_ERANGE : REG_NOERROR;
+
+ /* Insert space to the end of the char_ranges. */
+ insert_space(2, b - char_set[5] - 2, b - 1);
+ *(b - char_set[5] - 2) = range_start;
+ *(b - char_set[5] - 1) = range_end;
+ char_set[4]++; /* ranges_index */
+ }
+ /* Have to increment the pointer into the pattern string, so the
+ caller isn't still at the ending character. */
+ (*p_ptr)++;
+ return ret;
+}
+#else
/* Read the ending character of a range (in a bracket expression) from the
uncompiled pattern *P_PTR (which ends at PEND). We assume the
starting character is in `P[-2]'. (`P[-1]' is the character `-'.)
`regex_compile' itself. */
static reg_errcode_t
-compile_range (p_ptr, pend, translate, syntax, b)
- const char **p_ptr, *pend;
- RE_TRANSLATE_TYPE translate;
- reg_syntax_t syntax;
- unsigned char *b;
+compile_range (range_start_char, p_ptr, pend, translate, syntax, b)
+ unsigned int range_start_char;
+ const char **p_ptr, *pend;
+ RE_TRANSLATE_TYPE translate;
+ reg_syntax_t syntax;
+ unsigned char *b;
{
unsigned this_char;
-
const char *p = *p_ptr;
- unsigned int range_start, range_end;
+ reg_errcode_t ret;
+# if _LIBC
+ const unsigned char *collseq;
+ unsigned int start_colseq;
+ unsigned int end_colseq;
+# else
+ unsigned end_char;
+# endif
if (p == pend)
return REG_ERANGE;
- /* Even though the pattern is a signed `char *', we need to fetch
- with unsigned char *'s; if the high bit of the pattern character
- is set, the range endpoints will be negative if we fetch using a
- signed char *.
-
- We also want to fetch the endpoints without translating them; the
- appropriate translation is done in the bit-setting loop below. */
- /* The SVR4 compiler on the 3B2 had trouble with unsigned const char *. */
- range_start = ((const unsigned char *) p)[-2];
- range_end = ((const unsigned char *) p)[0];
-
/* Have to increment the pointer into the pattern string, so the
caller isn't still at the ending character. */
(*p_ptr)++;
- /* If the start is after the end, the range is empty. */
- if (range_start > range_end)
- return syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR;
+ /* Report an error if the range is empty and the syntax prohibits this. */
+ ret = syntax & RE_NO_EMPTY_RANGES ? REG_ERANGE : REG_NOERROR;
+
+# if _LIBC
+ collseq = (const unsigned char *) _NL_CURRENT (LC_COLLATE,
+ _NL_COLLATE_COLLSEQMB);
+ start_colseq = collseq[(unsigned char) TRANSLATE (range_start_char)];
+ end_colseq = collseq[(unsigned char) TRANSLATE (p[0])];
+ for (this_char = 0; this_char <= (unsigned char) -1; ++this_char)
+ {
+ unsigned int this_colseq = collseq[(unsigned char) TRANSLATE (this_char)];
+
+ if (start_colseq <= this_colseq && this_colseq <= end_colseq)
+ {
+ SET_LIST_BIT (TRANSLATE (this_char));
+ ret = REG_NOERROR;
+ }
+ }
+# else
/* Here we see why `this_char' has to be larger than an `unsigned
- char' -- the range is inclusive, so if `range_end' == 0xff
- (assuming 8-bit characters), we would otherwise go into an infinite
- loop, since all characters <= 0xff. */
- for (this_char = range_start; this_char <= range_end; this_char++)
+ char' -- we would otherwise go into an infinite loop, since all
+ characters <= 0xff. */
+ range_start_char = TRANSLATE (range_start_char);
+ /* TRANSLATE(p[0]) is casted to char (not unsigned char) in TRANSLATE,
+ and some compilers cast it to int implicitly, so following for_loop
+ may fall to (almost) infinite loop.
+ e.g. If translate[p[0]] = 0xff, end_char may equals to 0xffffffff.
+ To avoid this, we cast p[0] to unsigned int and truncate it. */
+ end_char = ((unsigned)TRANSLATE(p[0]) & ((1 << BYTEWIDTH) - 1));
+
+ for (this_char = range_start_char; this_char <= end_char; ++this_char)
{
SET_LIST_BIT (TRANSLATE (this_char));
+ ret = REG_NOERROR;
}
+# endif
- return REG_NOERROR;
+ return ret;
}
+#endif /* MBS_SUPPORT */
\f
/* re_compile_fastmap computes a ``fastmap'' for the compiled pattern in
BUFP. A fastmap records which of the (1 << BYTEWIDTH) possible
Returns 0 if we succeed, -2 if an internal error. */
+#ifdef MBS_SUPPORT
+/* local function for re_compile_fastmap.
+ truncate wchar_t character to char. */
+static unsigned char truncate_wchar (CHAR_TYPE c);
+
+static unsigned char
+truncate_wchar (c)
+ CHAR_TYPE c;
+{
+ unsigned char buf[MB_LEN_MAX];
+ int retval = wctomb(buf, c);
+ return retval > 0 ? buf[0] : (unsigned char)c;
+}
+#endif /* MBS_SUPPORT */
+
int
re_compile_fastmap (bufp)
struct re_pattern_buffer *bufp;
#endif
register char *fastmap = bufp->fastmap;
- unsigned char *pattern = bufp->buffer;
- unsigned char *p = pattern;
- register unsigned char *pend = pattern + bufp->used;
+
+#ifdef MBS_SUPPORT
+ /* We need to cast pattern to (wchar_t*), because we casted this compiled
+ pattern to (char*) in regex_compile. */
+ US_CHAR_TYPE *pattern = (US_CHAR_TYPE*)bufp->buffer;
+ register US_CHAR_TYPE *pend = (US_CHAR_TYPE*) (bufp->buffer + bufp->used);
+#else
+ US_CHAR_TYPE *pattern = bufp->buffer;
+ register US_CHAR_TYPE *pend = pattern + bufp->used;
+#endif /* MBS_SUPPORT */
+ US_CHAR_TYPE *p = pattern;
#ifdef REL_ALLOC
/* This holds the pointer to the failure stack, when
/* Following are the cases which match a character. These end
with `break'. */
+#ifdef MBS_SUPPORT
+ case exactn:
+ fastmap[truncate_wchar(p[1])] = 1;
+ break;
+ case exactn_bin:
+ fastmap[p[1]] = 1;
+ break;
+#else
case exactn:
fastmap[p[1]] = 1;
break;
+#endif /* MBS_SUPPORT */
+#ifdef MBS_SUPPORT
+ /* It is hard to distinguish fastmap from (multi byte) characters
+ which depends on current locale. */
+ case charset:
+ case charset_not:
+ case wordchar:
+ case notwordchar:
+ bufp->can_be_null = 1;
+ goto done;
+#else
case charset:
for (j = *p++ * BYTEWIDTH - 1; j >= 0; j--)
if (p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH)))
if (SYNTAX (j) != Sword)
fastmap[j] = 1;
break;
-
+#endif
case anychar:
{
case succeed_n:
/* Get to the number of times to succeed. */
- p += 2;
+ p += OFFSET_ADDRESS_SIZE;
/* Increment p past the n for when k != 0. */
EXTRACT_NUMBER_AND_INCR (k, p);
if (k == 0)
{
- p -= 4;
+ p -= 2 * OFFSET_ADDRESS_SIZE;
succeed_n_p = true; /* Spaghetti code alert. */
goto handle_on_failure_jump;
}
case set_number_at:
- p += 4;
+ p += 2 * OFFSET_ADDRESS_SIZE;
continue;
RESET_FAIL_STACK ();
return 0;
} /* re_compile_fastmap */
+#ifdef _LIBC
+weak_alias (__re_compile_fastmap, re_compile_fastmap)
+#endif
\f
/* Set REGS to hold NUM_REGS registers, storing them in STARTS and
ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use
regs->start = regs->end = (regoff_t *) 0;
}
}
+#ifdef _LIBC
+weak_alias (__re_set_registers, re_set_registers)
+#endif
\f
/* Searching routines. */
/* Like re_search_2, below, but only one string is specified, and
- doesn't let you say where to stop matching. */
+ doesn't let you say where to stop matching. */
int
re_search (bufp, string, size, startpos, range, regs)
return re_search_2 (bufp, NULL, 0, string, size, startpos, range,
regs, size);
}
+#ifdef _LIBC
+weak_alias (__re_search, re_search)
+#endif
/* Using the compiled pattern in BUFP->buffer, first tries to match the
/* If the search isn't to be a backwards one, don't waste time in a
search for a pattern that must be anchored. */
- if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == begbuf && range > 0)
+ if (bufp->used > 0 && range > 0
+ && ((re_opcode_t) bufp->buffer[0] == begbuf
+ /* `begline' is like `begbuf' if it cannot match at newlines. */
+ || ((re_opcode_t) bufp->buffer[0] == begline
+ && !bufp->newline_anchor)))
{
if (startpos > 0)
return -1;
}
else /* Searching backwards. */
{
- register char c = (size1 == 0 || startpos >= size1
- ? string2[startpos - size1]
- : string1[startpos]);
+ register CHAR_TYPE c = (size1 == 0 || startpos >= size1
+ ? string2[startpos - size1]
+ : string1[startpos]);
if (!fastmap[(unsigned char) TRANSLATE (c)])
goto advance;
}
return -1;
} /* re_search_2 */
+#ifdef _LIBC
+weak_alias (__re_search_2, re_search_2)
+#endif
\f
+#ifdef MBS_SUPPORT
+/* This converts PTR, a pointer into one of the search wchar_t strings
+ `string1' and `string2' into an multibyte string offset from the
+ beginning of that string. We use mbs_offset to optimize.
+ See convert_mbs_to_wcs. */
+# define POINTER_TO_OFFSET(ptr) \
+ (FIRST_STRING_P (ptr) \
+ ? ((regoff_t)(mbs_offset1 != NULL? mbs_offset1[(ptr)-string1] : 0)) \
+ : ((regoff_t)((mbs_offset2 != NULL? mbs_offset2[(ptr)-string2] : 0) \
+ + csize1)))
+#else
/* This converts PTR, a pointer into one of the search strings `string1'
and `string2' into an offset from the beginning of that string. */
-#define POINTER_TO_OFFSET(ptr) \
+# define POINTER_TO_OFFSET(ptr) \
(FIRST_STRING_P (ptr) \
? ((regoff_t) ((ptr) - string1)) \
: ((regoff_t) ((ptr) - string2 + size1)))
+#endif /* MBS_SUPPORT */
/* Macros for dealing with the split strings in re_match_2. */
two special cases to check for: if past the end of string1, look at
the first character in string2; and if before the beginning of
string2, look at the last character in string1. */
-#define WORDCHAR_P(d) \
+#ifdef MBS_SUPPORT
+/* Use internationalized API instead of SYNTAX. */
+# define WORDCHAR_P(d) \
+ (iswalnum ((wint_t)((d) == end1 ? *string2 \
+ : (d) == string2 - 1 ? *(end1 - 1) : *(d))) != 0)
+#else
+# define WORDCHAR_P(d) \
(SYNTAX ((d) == end1 ? *string2 \
: (d) == string2 - 1 ? *(end1 - 1) : *(d)) \
== Sword)
+#endif /* MBS_SUPPORT */
/* Disabled due to a compiler bug -- see comment at case wordbound */
#if 0
/* Free everything we malloc. */
#ifdef MATCH_MAY_ALLOCATE
# define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
-# define FREE_VARIABLES() \
+# ifdef MBS_SUPPORT
+# define FREE_VARIABLES() \
+ do { \
+ REGEX_FREE_STACK (fail_stack.stack); \
+ FREE_VAR (regstart); \
+ FREE_VAR (regend); \
+ FREE_VAR (old_regstart); \
+ FREE_VAR (old_regend); \
+ FREE_VAR (best_regstart); \
+ FREE_VAR (best_regend); \
+ FREE_VAR (reg_info); \
+ FREE_VAR (reg_dummy); \
+ FREE_VAR (reg_info_dummy); \
+ FREE_VAR (string1); \
+ FREE_VAR (string2); \
+ FREE_VAR (mbs_offset1); \
+ FREE_VAR (mbs_offset2); \
+ } while (0)
+# else /* not MBS_SUPPORT */
+# define FREE_VARIABLES() \
do { \
REGEX_FREE_STACK (fail_stack.stack); \
FREE_VAR (regstart); \
FREE_VAR (reg_dummy); \
FREE_VAR (reg_info_dummy); \
} while (0)
+# endif /* MBS_SUPPORT */
#else
-# define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */
+# define FREE_VAR(var) if (var) free (var); var = NULL
+# ifdef MBS_SUPPORT
+# define FREE_VARIABLES() \
+ do { \
+ FREE_VAR (string1); \
+ FREE_VAR (string2); \
+ FREE_VAR (mbs_offset1); \
+ FREE_VAR (mbs_offset2); \
+ } while (0)
+# else
+# define FREE_VARIABLES() ((void)0) /* Do nothing! But inhibit gcc warning. */
+# endif /* MBS_SUPPORT */
#endif /* not MATCH_MAY_ALLOCATE */
/* These values must meet several constraints. They must not be valid
# endif
return result;
}
+# ifdef _LIBC
+weak_alias (__re_match, re_match)
+# endif
#endif /* not emacs */
-static boolean group_match_null_string_p _RE_ARGS ((unsigned char **p,
- unsigned char *end,
+static boolean group_match_null_string_p _RE_ARGS ((US_CHAR_TYPE **p,
+ US_CHAR_TYPE *end,
register_info_type *reg_info));
-static boolean alt_match_null_string_p _RE_ARGS ((unsigned char *p,
- unsigned char *end,
+static boolean alt_match_null_string_p _RE_ARGS ((US_CHAR_TYPE *p,
+ US_CHAR_TYPE *end,
register_info_type *reg_info));
-static boolean common_op_match_null_string_p _RE_ARGS ((unsigned char **p,
- unsigned char *end,
+static boolean common_op_match_null_string_p _RE_ARGS ((US_CHAR_TYPE **p,
+ US_CHAR_TYPE *end,
register_info_type *reg_info));
-static int bcmp_translate _RE_ARGS ((const char *s1, const char *s2,
+static int bcmp_translate _RE_ARGS ((const CHAR_TYPE *s1, const CHAR_TYPE *s2,
int len, char *translate));
/* re_match_2 matches the compiled pattern in BUFP against the
#endif
return result;
}
+#ifdef _LIBC
+weak_alias (__re_match_2, re_match_2)
+#endif
+
+#ifdef MBS_SUPPORT
+
+static int count_mbs_length PARAMS ((int *, int));
+
+/* This check the substring (from 0, to length) of the multibyte string,
+ to which offset_buffer correspond. And count how many wchar_t_characters
+ the substring occupy. We use offset_buffer to optimization.
+ See convert_mbs_to_wcs. */
+
+static int
+count_mbs_length(offset_buffer, length)
+ int *offset_buffer;
+ int length;
+{
+ int wcs_size;
+
+ /* Check whether the size is valid. */
+ if (length < 0)
+ return -1;
+
+ if (offset_buffer == NULL)
+ return 0;
+
+ for (wcs_size = 0 ; offset_buffer[wcs_size] != -1 ; wcs_size++)
+ {
+ if (offset_buffer[wcs_size] == length)
+ return wcs_size;
+ if (offset_buffer[wcs_size] > length)
+ /* It is a fragment of a wide character. */
+ return -1;
+ }
+
+ /* We reached at the sentinel. */
+ return -1;
+}
+#endif /* MBS_SUPPORT */
/* This is a separate function so that we can force an alloca cleanup
afterwards. */
static int
+#ifdef MBS_SUPPORT
+re_match_2_internal (bufp, cstring1, csize1, cstring2, csize2, pos, regs, stop)
+ struct re_pattern_buffer *bufp;
+ const char *cstring1, *cstring2;
+ int csize1, csize2;
+#else
re_match_2_internal (bufp, string1, size1, string2, size2, pos, regs, stop)
struct re_pattern_buffer *bufp;
const char *string1, *string2;
int size1, size2;
+#endif
int pos;
struct re_registers *regs;
int stop;
{
/* General temporaries. */
int mcnt;
- unsigned char *p1;
+ US_CHAR_TYPE *p1;
+#ifdef MBS_SUPPORT
+ /* We need wchar_t* buffers correspond to string1, string2. */
+ CHAR_TYPE *string1 = NULL, *string2 = NULL;
+ /* We need the size of wchar_t buffers correspond to csize1, csize2. */
+ int size1 = 0, size2 = 0;
+ /* offset buffer for optimizatoin. See convert_mbs_to_wc. */
+ int *mbs_offset1 = NULL, *mbs_offset2 = NULL;
+ /* They hold whether each wchar_t is binary data or not. */
+ char *is_binary = NULL;
+#endif /* MBS_SUPPORT */
/* Just past the end of the corresponding string. */
- const char *end1, *end2;
+ const CHAR_TYPE *end1, *end2;
/* Pointers into string1 and string2, just past the last characters in
each to consider matching. */
- const char *end_match_1, *end_match_2;
+ const CHAR_TYPE *end_match_1, *end_match_2;
/* Where we are in the data, and the end of the current string. */
- const char *d, *dend;
+ const CHAR_TYPE *d, *dend;
/* Where we are in the pattern, and the end of the pattern. */
- unsigned char *p = bufp->buffer;
- register unsigned char *pend = p + bufp->used;
+#ifdef MBS_SUPPORT
+ US_CHAR_TYPE *pattern, *p;
+ register US_CHAR_TYPE *pend;
+#else
+ US_CHAR_TYPE *p = bufp->buffer;
+ register US_CHAR_TYPE *pend = p + bufp->used;
+#endif /* MBS_SUPPORT */
/* Mark the opcode just after a start_memory, so we can test for an
empty subpattern when we get to the stop_memory. */
- unsigned char *just_past_start_mem = 0;
+ US_CHAR_TYPE *just_past_start_mem = 0;
/* We use this to map every character in the string. */
RE_TRANSLATE_TYPE translate = bufp->translate;
fail_stack_type fail_stack;
#endif
#ifdef DEBUG
- static unsigned failure_id = 0;
+ static unsigned failure_id;
unsigned nfailure_points_pushed = 0, nfailure_points_popped = 0;
#endif
stopped matching the regnum-th subexpression. (The zeroth register
keeps track of what the whole pattern matches.) */
#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
- const char **regstart, **regend;
+ const CHAR_TYPE **regstart, **regend;
#endif
/* If a group that's operated upon by a repetition operator fails to
are when we last see its open-group operator. Similarly for a
register's end. */
#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
- const char **old_regstart, **old_regend;
+ const CHAR_TYPE **old_regstart, **old_regend;
#endif
/* The is_active field of reg_info helps us keep track of which (possibly
turn happens only if we have not yet matched the entire string. */
unsigned best_regs_set = false;
#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
- const char **best_regstart, **best_regend;
+ const CHAR_TYPE **best_regstart, **best_regend;
#endif
/* Logically, this is `best_regend[0]'. But we don't want to have to
the end of the best match so far in a separate variable. We
initialize this to NULL so that when we backtrack the first time
and need to test it, it's not garbage. */
- const char *match_end = NULL;
+ const CHAR_TYPE *match_end = NULL;
/* This helps SET_REGS_MATCHED avoid doing redundant work. */
int set_regs_matched_done = 0;
/* Used when we pop values we don't care about. */
#ifdef MATCH_MAY_ALLOCATE /* otherwise, these are global. */
- const char **reg_dummy;
+ const CHAR_TYPE **reg_dummy;
register_info_type *reg_info_dummy;
#endif
array indexing. We should fix this. */
if (bufp->re_nsub)
{
- regstart = REGEX_TALLOC (num_regs, const char *);
- regend = REGEX_TALLOC (num_regs, const char *);
- old_regstart = REGEX_TALLOC (num_regs, const char *);
- old_regend = REGEX_TALLOC (num_regs, const char *);
- best_regstart = REGEX_TALLOC (num_regs, const char *);
- best_regend = REGEX_TALLOC (num_regs, const char *);
+ regstart = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
+ regend = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
+ old_regstart = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
+ old_regend = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
+ best_regstart = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
+ best_regend = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
reg_info = REGEX_TALLOC (num_regs, register_info_type);
- reg_dummy = REGEX_TALLOC (num_regs, const char *);
+ reg_dummy = REGEX_TALLOC (num_regs, const CHAR_TYPE *);
reg_info_dummy = REGEX_TALLOC (num_regs, register_info_type);
if (!(regstart && regend && old_regstart && old_regend && reg_info
#endif /* MATCH_MAY_ALLOCATE */
/* The starting position is bogus. */
+#ifdef MBS_SUPPORT
+ if (pos < 0 || pos > csize1 + csize2)
+#else
if (pos < 0 || pos > size1 + size2)
+#endif
{
FREE_VARIABLES ();
return -1;
}
+#ifdef MBS_SUPPORT
+ /* Allocate wchar_t array for string1 and string2 and
+ fill them with converted string. */
+ if (csize1 != 0)
+ {
+ string1 = REGEX_TALLOC (csize1 + 1, CHAR_TYPE);
+ mbs_offset1 = REGEX_TALLOC (csize1 + 1, int);
+ is_binary = REGEX_TALLOC (csize1 + 1, char);
+ if (!string1 || !mbs_offset1 || !is_binary)
+ {
+ FREE_VAR (string1);
+ FREE_VAR (mbs_offset1);
+ FREE_VAR (is_binary);
+ return -2;
+ }
+ size1 = convert_mbs_to_wcs(string1, cstring1, csize1,
+ mbs_offset1, is_binary);
+ string1[size1] = L'\0'; /* for a sentinel */
+ FREE_VAR (is_binary);
+ }
+ if (csize2 != 0)
+ {
+ string2 = REGEX_TALLOC (csize2 + 1, CHAR_TYPE);
+ mbs_offset2 = REGEX_TALLOC (csize2 + 1, int);
+ is_binary = REGEX_TALLOC (csize2 + 1, char);
+ if (!string2 || !mbs_offset2 || !is_binary)
+ {
+ FREE_VAR (string1);
+ FREE_VAR (mbs_offset1);
+ FREE_VAR (string2);
+ FREE_VAR (mbs_offset2);
+ FREE_VAR (is_binary);
+ return -2;
+ }
+ size2 = convert_mbs_to_wcs(string2, cstring2, csize2,
+ mbs_offset2, is_binary);
+ string2[size2] = L'\0'; /* for a sentinel */
+ FREE_VAR (is_binary);
+ }
+
+ /* We need to cast pattern to (wchar_t*), because we casted this compiled
+ pattern to (char*) in regex_compile. */
+ p = pattern = (CHAR_TYPE*)bufp->buffer;
+ pend = (CHAR_TYPE*)(bufp->buffer + bufp->used);
+
+#endif /* MBS_SUPPORT */
+
/* Initialize subexpression text positions to -1 to mark ones that no
start_memory/stop_memory has been seen for. Also initialize the
register information struct. */
size2 = size1;
string1 = 0;
size1 = 0;
+#ifdef MBS_SUPPORT
+ mbs_offset2 = mbs_offset1;
+ csize2 = csize1;
+ mbs_offset1 = NULL;
+ csize1 = 0;
+#endif
}
end1 = string1 + size1;
end2 = string2 + size2;
/* Compute where to stop matching, within the two strings. */
+#ifdef MBS_SUPPORT
+ if (stop <= csize1)
+ {
+ mcnt = count_mbs_length(mbs_offset1, stop);
+ end_match_1 = string1 + mcnt;
+ end_match_2 = string2;
+ }
+ else
+ {
+ if (stop > csize1 + csize2)
+ stop = csize1 + csize2;
+ end_match_1 = end1;
+ mcnt = count_mbs_length(mbs_offset2, stop-csize1);
+ end_match_2 = string2 + mcnt;
+ }
+ if (mcnt < 0)
+ { /* count_mbs_length return error. */
+ FREE_VARIABLES ();
+ return -1;
+ }
+#else
if (stop <= size1)
{
end_match_1 = string1 + stop;
end_match_1 = end1;
end_match_2 = string2 + stop - size1;
}
+#endif /* MBS_SUPPORT */
/* `p' scans through the pattern as `d' scans through the data.
`dend' is the end of the input string that `d' points within. `d'
this happens before fetching; therefore, at the beginning of the
loop, `d' can be pointing at the end of a string, but it cannot
equal `string2'. */
+#ifdef MBS_SUPPORT
+ if (size1 > 0 && pos <= csize1)
+ {
+ mcnt = count_mbs_length(mbs_offset1, pos);
+ d = string1 + mcnt;
+ dend = end_match_1;
+ }
+ else
+ {
+ mcnt = count_mbs_length(mbs_offset2, pos-csize1);
+ d = string2 + mcnt;
+ dend = end_match_2;
+ }
+
+ if (mcnt < 0)
+ { /* count_mbs_length return error. */
+ FREE_VARIABLES ();
+ return -1;
+ }
+#else
if (size1 > 0 && pos <= size1)
{
d = string1 + pos;
d = string2 + pos - size1;
dend = end_match_2;
}
+#endif /* MBS_SUPPORT */
DEBUG_PRINT1 ("The compiled pattern is:\n");
DEBUG_PRINT_COMPILED_PATTERN (bufp, p, pend);
succeed_label:
DEBUG_PRINT1 ("Accepting match.\n");
-
/* If caller wants register contents data back, do it. */
if (regs && !bufp->no_sub)
{
- /* Have the register data arrays been allocated? */
+ /* Have the register data arrays been allocated? */
if (bufp->regs_allocated == REGS_UNALLOCATED)
{ /* No. So allocate them with malloc. We need one
extra element beyond `num_regs' for the `-1' marker
if (regs->num_regs > 0)
{
regs->start[0] = pos;
+#ifdef MBS_SUPPORT
+ if (MATCHING_IN_FIRST_STRING)
+ regs->end[0] = mbs_offset1 != NULL ?
+ mbs_offset1[d-string1] : 0;
+ else
+ regs->end[0] = csize1 + (mbs_offset2 != NULL ?
+ mbs_offset2[d-string2] : 0);
+#else
regs->end[0] = (MATCHING_IN_FIRST_STRING
? ((regoff_t) (d - string1))
: ((regoff_t) (d - string2 + size1)));
+#endif /* MBS_SUPPORT */
}
/* Go through the first `min (num_regs, regs->num_regs)'
nfailure_points_pushed - nfailure_points_popped);
DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed);
+#ifdef MBS_SUPPORT
+ if (MATCHING_IN_FIRST_STRING)
+ mcnt = mbs_offset1 != NULL ? mbs_offset1[d-string1] : 0;
+ else
+ mcnt = (mbs_offset2 != NULL ? mbs_offset2[d-string2] : 0) +
+ csize1;
+ mcnt -= pos;
+#else
mcnt = d - pos - (MATCHING_IN_FIRST_STRING
? string1
: string2 - size1);
+#endif /* MBS_SUPPORT */
DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt);
byte in the pattern defines n, and the n bytes after that
are the characters to match. */
case exactn:
+#ifdef MBS_SUPPORT
+ case exactn_bin:
+#endif
mcnt = *p++;
DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt);
do
{
PREFETCH ();
- if ((unsigned char) translate[(unsigned char) *d++]
- != (unsigned char) *p++)
+#ifdef MBS_SUPPORT
+ if (*d <= 0xff)
+ {
+ if ((US_CHAR_TYPE) translate[(unsigned char) *d++]
+ != (US_CHAR_TYPE) *p++)
+ goto fail;
+ }
+ else
+ {
+ if (*d++ != (CHAR_TYPE) *p++)
+ goto fail;
+ }
+#else
+ if ((US_CHAR_TYPE) translate[(unsigned char) *d++]
+ != (US_CHAR_TYPE) *p++)
goto fail;
+#endif /* MBS_SUPPORT */
}
while (--mcnt);
}
do
{
PREFETCH ();
- if (*d++ != (char) *p++) goto fail;
+ if (*d++ != (CHAR_TYPE) *p++) goto fail;
}
while (--mcnt);
}
goto fail;
SET_REGS_MATCHED ();
- DEBUG_PRINT2 (" Matched `%d'.\n", *d);
+ DEBUG_PRINT2 (" Matched `%ld'.\n", (long int) *d);
d++;
break;
case charset:
case charset_not:
{
- register unsigned char c;
+ register US_CHAR_TYPE c;
+#ifdef MBS_SUPPORT
+ unsigned int i, char_class_length, coll_symbol_length,
+ equiv_class_length, ranges_length, chars_length, length;
+ CHAR_TYPE *workp, *workp2, *charset_top;
+#define WORK_BUFFER_SIZE 128
+ CHAR_TYPE str_buf[WORK_BUFFER_SIZE];
+# ifdef _LIBC
+ uint32_t nrules;
+# endif /* _LIBC */
+#endif /* MBS_SUPPORT */
boolean not = (re_opcode_t) *(p - 1) == charset_not;
DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : "");
-
PREFETCH ();
c = TRANSLATE (*d); /* The character to match. */
+#ifdef MBS_SUPPORT
+# ifdef _LIBC
+ nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
+# endif /* _LIBC */
+ charset_top = p - 1;
+ char_class_length = *p++;
+ coll_symbol_length = *p++;
+ equiv_class_length = *p++;
+ ranges_length = *p++;
+ chars_length = *p++;
+ /* p points charset[6], so the address of the next instruction
+ (charset[l+m+n+2o+k+p']) equals p[l+m+n+2*o+p'],
+ where l=length of char_classes, m=length of collating_symbol,
+ n=equivalence_class, o=length of char_range,
+ p'=length of character. */
+ workp = p;
+ /* Update p to indicate the next instruction. */
+ p += char_class_length + coll_symbol_length+ equiv_class_length +
+ 2*ranges_length + chars_length;
+
+ /* match with char_class? */
+ for (i = 0; i < char_class_length ; i += CHAR_CLASS_SIZE)
+ {
+ wctype_t wctype;
+ uintptr_t alignedp = ((uintptr_t)workp
+ + __alignof__(wctype_t) - 1)
+ & ~(uintptr_t)(__alignof__(wctype_t) - 1);
+ wctype = *((wctype_t*)alignedp);
+ workp += CHAR_CLASS_SIZE;
+ if (iswctype((wint_t)c, wctype))
+ goto char_set_matched;
+ }
+
+ /* match with collating_symbol? */
+# ifdef _LIBC
+ if (nrules != 0)
+ {
+ const unsigned char *extra = (const unsigned char *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_SYMB_EXTRAMB);
+
+ for (workp2 = workp + coll_symbol_length ; workp < workp2 ;
+ workp++)
+ {
+ int32_t *wextra;
+ wextra = (int32_t*)(extra + *workp++);
+ for (i = 0; i < *wextra; ++i)
+ if (TRANSLATE(d[i]) != wextra[1 + i])
+ break;
+
+ if (i == *wextra)
+ {
+ /* Update d, however d will be incremented at
+ char_set_matched:, we decrement d here. */
+ d += i - 1;
+ goto char_set_matched;
+ }
+ }
+ }
+ else /* (nrules == 0) */
+# endif
+ /* If we can't look up collation data, we use wcscoll
+ instead. */
+ {
+ for (workp2 = workp + coll_symbol_length ; workp < workp2 ;)
+ {
+ const CHAR_TYPE *backup_d = d, *backup_dend = dend;
+ length = wcslen(workp);
+
+ /* If wcscoll(the collating symbol, whole string) > 0,
+ any substring of the string never match with the
+ collating symbol. */
+ if (wcscoll(workp, d) > 0)
+ {
+ workp += length + 1;
+ continue;
+ }
+
+ /* First, we compare the collating symbol with
+ the first character of the string.
+ If it don't match, we add the next character to
+ the compare buffer in turn. */
+ for (i = 0 ; i < WORK_BUFFER_SIZE-1 ; i++, d++)
+ {
+ int match;
+ if (d == dend)
+ {
+ if (dend == end_match_2)
+ break;
+ d = string2;
+ dend = end_match_2;
+ }
+
+ /* add next character to the compare buffer. */
+ str_buf[i] = TRANSLATE(*d);
+ str_buf[i+1] = '\0';
+
+ match = wcscoll(workp, str_buf);
+ if (match == 0)
+ goto char_set_matched;
+
+ if (match < 0)
+ /* (str_buf > workp) indicate (str_buf + X > workp),
+ because for all X (str_buf + X > str_buf).
+ So we don't need continue this loop. */
+ break;
+
+ /* Otherwise(str_buf < workp),
+ (str_buf+next_character) may equals (workp).
+ So we continue this loop. */
+ }
+ /* not matched */
+ d = backup_d;
+ dend = backup_dend;
+ workp += length + 1;
+ }
+ }
+ /* match with equivalence_class? */
+# ifdef _LIBC
+ if (nrules != 0)
+ {
+ const CHAR_TYPE *backup_d = d, *backup_dend = dend;
+ /* Try to match the equivalence class against
+ those known to the collate implementation. */
+ const int32_t *table;
+ const int32_t *weights;
+ const int32_t *extra;
+ const int32_t *indirect;
+ int32_t idx, idx2;
+ wint_t *cp;
+ size_t len;
+
+ /* This #include defines a local function! */
+# include <locale/weightwc.h>
+
+ table = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_TABLEWC);
+ weights = (const wint_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_WEIGHTWC);
+ extra = (const wint_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_EXTRAWC);
+ indirect = (const int32_t *)
+ _NL_CURRENT (LC_COLLATE, _NL_COLLATE_INDIRECTWC);
+
+ /* Write 1 collating element to str_buf, and
+ get its index. */
+ idx2 = 0;
+
+ for (i = 0 ; idx2 == 0 && i < WORK_BUFFER_SIZE - 1; i++)
+ {
+ cp = (wint_t*)str_buf;
+ if (d == dend)
+ {
+ if (dend == end_match_2)
+ break;
+ d = string2;
+ dend = end_match_2;
+ }
+ str_buf[i] = TRANSLATE(*(d+i));
+ str_buf[i+1] = '\0'; /* sentinel */
+ idx2 = findidx ((const wint_t**)&cp);
+ }
+
+ /* Update d, however d will be incremented at
+ char_set_matched:, we decrement d here. */
+ d = backup_d + ((wchar_t*)cp - (wchar_t*)str_buf - 1);
+ if (d >= dend)
+ {
+ if (dend == end_match_2)
+ d = dend;
+ else
+ {
+ d = string2;
+ dend = end_match_2;
+ }
+ }
+
+ len = weights[idx2];
+
+ for (workp2 = workp + equiv_class_length ; workp < workp2 ;
+ workp++)
+ {
+ idx = (int32_t)*workp;
+ /* We already checked idx != 0 in regex_compile. */
+
+ if (idx2 != 0 && len == weights[idx])
+ {
+ int cnt = 0;
+ while (cnt < len && (weights[idx + 1 + cnt]
+ == weights[idx2 + 1 + cnt]))
+ ++cnt;
+
+ if (cnt == len)
+ goto char_set_matched;
+ }
+ }
+ /* not matched */
+ d = backup_d;
+ dend = backup_dend;
+ }
+ else /* (nrules == 0) */
+# endif
+ /* If we can't look up collation data, we use wcscoll
+ instead. */
+ {
+ for (workp2 = workp + equiv_class_length ; workp < workp2 ;)
+ {
+ const CHAR_TYPE *backup_d = d, *backup_dend = dend;
+ length = wcslen(workp);
+
+ /* If wcscoll(the collating symbol, whole string) > 0,
+ any substring of the string never match with the
+ collating symbol. */
+ if (wcscoll(workp, d) > 0)
+ {
+ workp += length + 1;
+ break;
+ }
+
+ /* First, we compare the equivalence class with
+ the first character of the string.
+ If it don't match, we add the next character to
+ the compare buffer in turn. */
+ for (i = 0 ; i < WORK_BUFFER_SIZE - 1 ; i++, d++)
+ {
+ int match;
+ if (d == dend)
+ {
+ if (dend == end_match_2)
+ break;
+ d = string2;
+ dend = end_match_2;
+ }
+
+ /* add next character to the compare buffer. */
+ str_buf[i] = TRANSLATE(*d);
+ str_buf[i+1] = '\0';
+
+ match = wcscoll(workp, str_buf);
+
+ if (match == 0)
+ goto char_set_matched;
+
+ if (match < 0)
+ /* (str_buf > workp) indicate (str_buf + X > workp),
+ because for all X (str_buf + X > str_buf).
+ So we don't need continue this loop. */
+ break;
+
+ /* Otherwise(str_buf < workp),
+ (str_buf+next_character) may equals (workp).
+ So we continue this loop. */
+ }
+ /* not matched */
+ d = backup_d;
+ dend = backup_dend;
+ workp += length + 1;
+ }
+ }
+
+ /* match with char_range? */
+#ifdef _LIBC
+ if (nrules != 0)
+ {
+ uint32_t collseqval;
+ const char *collseq = (const char *)
+ _NL_CURRENT(LC_COLLATE, _NL_COLLATE_COLLSEQWC);
+
+ collseqval = collseq_table_lookup (collseq, c);
+ for (; workp < p - chars_length ;)
+ {
+ uint32_t start_val, end_val;
+
+ /* We already compute the collation sequence value
+ of the characters (or collating symbols). */
+ start_val = (uint32_t) *workp++; /* range_start */
+ end_val = (uint32_t) *workp++; /* range_end */
+
+ if (start_val <= collseqval && collseqval <= end_val)
+ goto char_set_matched;
+ }
+ }
+ else
+#endif
+ {
+ /* We set range_start_char at str_buf[0], range_end_char
+ at str_buf[4], and compared char at str_buf[2]. */
+ str_buf[1] = 0;
+ str_buf[2] = c;
+ str_buf[3] = 0;
+ str_buf[5] = 0;
+ for (; workp < p - chars_length ;)
+ {
+ wchar_t *range_start_char, *range_end_char;
+
+ /* match if (range_start_char <= c <= range_end_char). */
+
+ /* If range_start(or end) < 0, we assume -range_start(end)
+ is the offset of the collating symbol which is specified
+ as the character of the range start(end). */
+
+ /* range_start */
+ if (*workp < 0)
+ range_start_char = charset_top - (*workp++);
+ else
+ {
+ str_buf[0] = *workp++;
+ range_start_char = str_buf;
+ }
+
+ /* range_end */
+ if (*workp < 0)
+ range_end_char = charset_top - (*workp++);
+ else
+ {
+ str_buf[4] = *workp++;
+ range_end_char = str_buf + 4;
+ }
+
+ if (wcscoll(range_start_char, str_buf+2) <= 0 &&
+ wcscoll(str_buf+2, range_end_char) <= 0)
+
+ goto char_set_matched;
+ }
+ }
+
+ /* match with char? */
+ for (; workp < p ; workp++)
+ if (c == *workp)
+ goto char_set_matched;
+
+ not = !not;
+
+ char_set_matched:
+ if (not) goto fail;
+#else
/* Cast to `unsigned' instead of `unsigned char' in case the
bit list is a full 32 bytes long. */
if (c < (unsigned) (*p * BYTEWIDTH)
p += 1 + *p;
if (!not) goto fail;
-
+#undef WORK_BUFFER_SIZE
+#endif /* MBS_SUPPORT */
SET_REGS_MATCHED ();
d++;
break;
matched within the group is recorded (in the internal
registers data structure) under the register number. */
case start_memory:
- DEBUG_PRINT3 ("EXECUTING start_memory %d (%d):\n", *p, p[1]);
+ DEBUG_PRINT3 ("EXECUTING start_memory %ld (%ld):\n",
+ (long int) *p, (long int) p[1]);
/* Find out if this group can match the empty string. */
p1 = p; /* To send to group_match_null_string_p. */
arguments are the same as start_memory's: the register
number, and the number of inner groups. */
case stop_memory:
- DEBUG_PRINT3 ("EXECUTING stop_memory %d (%d):\n", *p, p[1]);
+ DEBUG_PRINT3 ("EXECUTING stop_memory %ld (%ld):\n",
+ (long int) *p, (long int) p[1]);
/* We need to save the string position the last time we were at
this close-group operator in case the group is operated
it isn't necessarily one less than now: consider
(a(b)c(d(e)f)g). When group 3 ends, after the f), the
new highest active register is 1. */
- unsigned char r = *p - 1;
+ US_CHAR_TYPE r = *p - 1;
while (r > 0 && !IS_ACTIVE (reg_info[r]))
r--;
case dummy_failure_jump:
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if (is_a_jump_n)
- p1 += 2;
+ p1 += OFFSET_ADDRESS_SIZE;
break;
default:
by forcing a failure after pushing on the stack the
on_failure_jump's jump in the pattern, and d. */
if (mcnt < 0 && (re_opcode_t) *p1 == on_failure_jump
- && (re_opcode_t) p1[3] == start_memory && p1[4] == *p)
+ && (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == start_memory
+ && p1[2+OFFSET_ADDRESS_SIZE] == *p)
{
/* If this group ever matched anything, then restore
what its registers were before trying this last
followed by the numeric value of <digit> as the register number. */
case duplicate:
{
- register const char *d2, *dend2;
+ register const CHAR_TYPE *d2, *dend2;
int regno = *p++; /* Get which register to match against. */
DEBUG_PRINT2 ("EXECUTING duplicate %d.\n", regno);
past them. */
if (translate
? bcmp_translate (d, d2, mcnt, translate)
- : memcmp (d, d2, mcnt))
+ : memcmp (d, d2, mcnt*sizeof(US_CHAR_TYPE)))
goto fail;
d += mcnt, d2 += mcnt;
EXTRACT_NUMBER_AND_INCR (mcnt, p);
DEBUG_PRINT2 ("EXECUTING maybe_pop_jump %d.\n", mcnt);
{
- register unsigned char *p2 = p;
+ register US_CHAR_TYPE *p2 = p;
/* Compare the beginning of the repeat with what in the
pattern follows its end. If we can establish that there
&& ((re_opcode_t) *p2 == stop_memory
|| (re_opcode_t) *p2 == start_memory))
p2 += 3;
- else if (p2 + 6 < pend
+ else if (p2 + 2 + 2 * OFFSET_ADDRESS_SIZE < pend
&& (re_opcode_t) *p2 == dummy_failure_jump)
- p2 += 6;
+ p2 += 2 + 2 * OFFSET_ADDRESS_SIZE;
else
break;
}
/* Consider what happens when matching ":\(.*\)"
against ":/". I don't really understand this code
yet. */
- p[-3] = (unsigned char) pop_failure_jump;
+ p[-(1+OFFSET_ADDRESS_SIZE)] = (US_CHAR_TYPE)
+ pop_failure_jump;
DEBUG_PRINT1
(" End of pattern: change to `pop_failure_jump'.\n");
}
else if ((re_opcode_t) *p2 == exactn
+#ifdef MBS_SUPPORT
+ || (re_opcode_t) *p2 == exactn_bin
+#endif
|| (bufp->newline_anchor && (re_opcode_t) *p2 == endline))
{
- register unsigned char c
- = *p2 == (unsigned char) endline ? '\n' : p2[2];
+ register US_CHAR_TYPE c
+ = *p2 == (US_CHAR_TYPE) endline ? '\n' : p2[2];
- if ((re_opcode_t) p1[3] == exactn && p1[5] != c)
+ if (((re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == exactn
+#ifdef MBS_SUPPORT
+ || (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == exactn_bin
+#endif
+ ) && p1[3+OFFSET_ADDRESS_SIZE] != c)
{
- p[-3] = (unsigned char) pop_failure_jump;
- DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
- c, p1[5]);
+ p[-(1+OFFSET_ADDRESS_SIZE)] = (US_CHAR_TYPE)
+ pop_failure_jump;
+#ifdef MBS_SUPPORT
+ if (MB_CUR_MAX != 1)
+ DEBUG_PRINT3 (" %C != %C => pop_failure_jump.\n",
+ (wint_t) c,
+ (wint_t) p1[3+OFFSET_ADDRESS_SIZE]);
+ else
+#endif
+ DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
+ (char) c,
+ (char) p1[3+OFFSET_ADDRESS_SIZE]);
}
+#ifndef MBS_SUPPORT
else if ((re_opcode_t) p1[3] == charset
|| (re_opcode_t) p1[3] == charset_not)
{
int not = (re_opcode_t) p1[3] == charset_not;
- if (c < (unsigned char) (p1[4] * BYTEWIDTH)
+ if (c < (unsigned) (p1[4] * BYTEWIDTH)
&& p1[5 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
not = !not;
DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
}
}
+#endif /* not MBS_SUPPORT */
}
+#ifndef MBS_SUPPORT
else if ((re_opcode_t) *p2 == charset)
{
-#ifdef DEBUG
- register unsigned char c
- = *p2 == (unsigned char) endline ? '\n' : p2[2];
-#endif
-
-#if 0
- if ((re_opcode_t) p1[3] == exactn
- && ! ((int) p2[1] * BYTEWIDTH > (int) p1[5]
- && (p2[2 + p1[5] / BYTEWIDTH]
- & (1 << (p1[5] % BYTEWIDTH)))))
-#else
+ /* We win if the first character of the loop is not part
+ of the charset. */
if ((re_opcode_t) p1[3] == exactn
- && ! ((int) p2[1] * BYTEWIDTH > (int) p1[4]
- && (p2[2 + p1[4] / BYTEWIDTH]
- & (1 << (p1[4] % BYTEWIDTH)))))
-#endif
- {
- p[-3] = (unsigned char) pop_failure_jump;
- DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
- c, p1[5]);
+ && ! ((int) p2[1] * BYTEWIDTH > (int) p1[5]
+ && (p2[2 + p1[5] / BYTEWIDTH]
+ & (1 << (p1[5] % BYTEWIDTH)))))
+ {
+ p[-3] = (unsigned char) pop_failure_jump;
+ DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
}
else if ((re_opcode_t) p1[3] == charset_not)
}
}
}
+#endif /* not MBS_SUPPORT */
}
- p -= 2; /* Point at relative address again. */
+ p -= OFFSET_ADDRESS_SIZE; /* Point at relative address again. */
if ((re_opcode_t) p[-1] != pop_failure_jump)
{
- p[-1] = (unsigned char) jump;
+ p[-1] = (US_CHAR_TYPE) jump;
DEBUG_PRINT1 (" Match => jump.\n");
goto unconditional_jump;
}
register from the stack, since lowest will == highest in
`pop_failure_point'. */
active_reg_t dummy_low_reg, dummy_high_reg;
- unsigned char *pdummy;
- const char *sdummy;
+ US_CHAR_TYPE *pdummy = NULL;
+ const CHAR_TYPE *sdummy = NULL;
DEBUG_PRINT1 ("EXECUTING pop_failure_jump.\n");
POP_FAILURE_POINT (sdummy, pdummy,
/* Have to succeed matching what follows at least n times.
After that, handle like `on_failure_jump'. */
case succeed_n:
- EXTRACT_NUMBER (mcnt, p + 2);
+ EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE);
DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt);
assert (mcnt >= 0);
if (mcnt > 0)
{
mcnt--;
- p += 2;
+ p += OFFSET_ADDRESS_SIZE;
STORE_NUMBER_AND_INCR (p, mcnt);
#ifdef _LIBC
- DEBUG_PRINT3 (" Setting %p to %d.\n", p - 2, mcnt);
+ DEBUG_PRINT3 (" Setting %p to %d.\n", p - OFFSET_ADDRESS_SIZE
+ , mcnt);
#else
- DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p - 2, mcnt);
+ DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p - OFFSET_ADDRESS_SIZE
+ , mcnt);
#endif
}
else if (mcnt == 0)
{
#ifdef _LIBC
- DEBUG_PRINT2 (" Setting two bytes from %p to no_op.\n", p+2);
+ DEBUG_PRINT2 (" Setting two bytes from %p to no_op.\n",
+ p + OFFSET_ADDRESS_SIZE);
#else
- DEBUG_PRINT2 (" Setting two bytes from 0x%x to no_op.\n", p+2);
-#endif
- p[2] = (unsigned char) no_op;
- p[3] = (unsigned char) no_op;
+ DEBUG_PRINT2 (" Setting two bytes from 0x%x to no_op.\n",
+ p + OFFSET_ADDRESS_SIZE);
+#endif /* _LIBC */
+
+#ifdef MBS_SUPPORT
+ p[1] = (US_CHAR_TYPE) no_op;
+#else
+ p[2] = (US_CHAR_TYPE) no_op;
+ p[3] = (US_CHAR_TYPE) no_op;
+#endif /* MBS_SUPPORT */
goto on_failure;
}
break;
case jump_n:
- EXTRACT_NUMBER (mcnt, p + 2);
+ EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE);
DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt);
/* Originally, this is how many times we CAN jump. */
if (mcnt)
{
mcnt--;
- STORE_NUMBER (p + 2, mcnt);
+ STORE_NUMBER (p + OFFSET_ADDRESS_SIZE, mcnt);
+
#ifdef _LIBC
- DEBUG_PRINT3 (" Setting %p to %d.\n", p + 2, mcnt);
+ DEBUG_PRINT3 (" Setting %p to %d.\n", p + OFFSET_ADDRESS_SIZE,
+ mcnt);
#else
- DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p + 2, mcnt);
-#endif
+ DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p + OFFSET_ADDRESS_SIZE,
+ mcnt);
+#endif /* _LIBC */
goto unconditional_jump;
}
/* If don't have to jump any more, skip over the rest of command. */
else
- p += 4;
+ p += 2 * OFFSET_ADDRESS_SIZE;
break;
case set_number_at:
case wordbeg:
DEBUG_PRINT1 ("EXECUTING wordbeg.\n");
- if (WORDCHAR_P (d) && (AT_STRINGS_BEG (d) || !WORDCHAR_P (d - 1)))
+ if (!AT_STRINGS_END (d) && WORDCHAR_P (d)
+ && (AT_STRINGS_BEG (d) || !WORDCHAR_P (d - 1)))
break;
goto fail;
case wordend:
DEBUG_PRINT1 ("EXECUTING wordend.\n");
if (!AT_STRINGS_BEG (d) && WORDCHAR_P (d - 1)
- && (!WORDCHAR_P (d) || AT_STRINGS_END (d)))
+ && (AT_STRINGS_END (d) || !WORDCHAR_P (d)))
break;
goto fail;
static boolean
group_match_null_string_p (p, end, reg_info)
- unsigned char **p, *end;
+ US_CHAR_TYPE **p, *end;
register_info_type *reg_info;
{
int mcnt;
/* Point to after the args to the start_memory. */
- unsigned char *p1 = *p + 2;
+ US_CHAR_TYPE *p1 = *p + 2;
while (p1 < end)
{
with an on_failure_jump (see above) that jumps to right
past a jump_past_alt. */
- while ((re_opcode_t) p1[mcnt-3] == jump_past_alt)
+ while ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] ==
+ jump_past_alt)
{
/* `mcnt' holds how many bytes long the alternative
is, including the ending `jump_past_alt' and
its number. */
- if (!alt_match_null_string_p (p1, p1 + mcnt - 3,
- reg_info))
+ if (!alt_match_null_string_p (p1, p1 + mcnt -
+ (1 + OFFSET_ADDRESS_SIZE),
+ reg_info))
return false;
/* Move to right after this alternative, including the
alternative that starts with an on_failure_jump. */
p1++;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
- if ((re_opcode_t) p1[mcnt-3] != jump_past_alt)
+ if ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] !=
+ jump_past_alt)
{
/* Get to the beginning of the n-th alternative. */
- p1 -= 3;
+ p1 -= 1 + OFFSET_ADDRESS_SIZE;
break;
}
}
/* Deal with the last alternative: go back and get number
of the `jump_past_alt' just before it. `mcnt' contains
the length of the alternative. */
- EXTRACT_NUMBER (mcnt, p1 - 2);
+ EXTRACT_NUMBER (mcnt, p1 - OFFSET_ADDRESS_SIZE);
if (!alt_match_null_string_p (p1, p1 + mcnt, reg_info))
return false;
static boolean
alt_match_null_string_p (p, end, reg_info)
- unsigned char *p, *end;
+ US_CHAR_TYPE *p, *end;
register_info_type *reg_info;
{
int mcnt;
- unsigned char *p1 = p;
+ US_CHAR_TYPE *p1 = p;
while (p1 < end)
{
static boolean
common_op_match_null_string_p (p, end, reg_info)
- unsigned char **p, *end;
+ US_CHAR_TYPE **p, *end;
register_info_type *reg_info;
{
int mcnt;
boolean ret;
int reg_no;
- unsigned char *p1 = *p;
+ US_CHAR_TYPE *p1 = *p;
switch ((re_opcode_t) *p1++)
{
case succeed_n:
/* Get to the number of times to succeed. */
- p1 += 2;
+ p1 += OFFSET_ADDRESS_SIZE;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if (mcnt == 0)
{
- p1 -= 4;
+ p1 -= 2 * OFFSET_ADDRESS_SIZE;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
p1 += mcnt;
}
break;
case set_number_at:
- p1 += 4;
+ p1 += 2 * OFFSET_ADDRESS_SIZE;
default:
/* All other opcodes mean we cannot match the empty string. */
static int
bcmp_translate (s1, s2, len, translate)
- const char *s1, *s2;
+ const CHAR_TYPE *s1, *s2;
register int len;
RE_TRANSLATE_TYPE translate;
{
- register const unsigned char *p1 = (const unsigned char *) s1;
- register const unsigned char *p2 = (const unsigned char *) s2;
+ register const US_CHAR_TYPE *p1 = (const US_CHAR_TYPE *) s1;
+ register const US_CHAR_TYPE *p2 = (const US_CHAR_TYPE *) s2;
while (len)
{
+#ifdef MBS_SUPPORT
+ if (((*p1<=0xff)?translate[*p1++]:*p1++)
+ != ((*p2<=0xff)?translate[*p2++]:*p2++))
+ return 1;
+#else
if (translate[*p1++] != translate[*p2++]) return 1;
+#endif /* MBS_SUPPORT */
len--;
}
return 0;
if (!ret)
return NULL;
- return gettext (re_error_msgid[(int) ret]);
+ return gettext (re_error_msgid + re_error_msgid_idx[(int) ret]);
}
+#ifdef _LIBC
+weak_alias (__re_compile_pattern, re_compile_pattern)
+#endif
\f
/* Entry points compatible with 4.2 BSD regex library. We don't define
them unless specifically requested. */
{
re_comp_buf.buffer = (unsigned char *) malloc (200);
if (re_comp_buf.buffer == NULL)
- return gettext (re_error_msgid[(int) REG_ESPACE]);
+ return (char *) gettext (re_error_msgid
+ + re_error_msgid_idx[(int) REG_ESPACE]);
re_comp_buf.allocated = 200;
re_comp_buf.fastmap = (char *) malloc (1 << BYTEWIDTH);
if (re_comp_buf.fastmap == NULL)
- return gettext (re_error_msgid[(int) REG_ESPACE]);
+ return (char *) gettext (re_error_msgid
+ + re_error_msgid_idx[(int) REG_ESPACE]);
}
/* Since `re_exec' always passes NULL for the `regs' argument, we
return NULL;
/* Yes, we're discarding `const' here if !HAVE_LIBINTL. */
- return (char *) gettext (re_error_msgid[(int) ret]);
+ return (char *) gettext (re_error_msgid + re_error_msgid_idx[(int) ret]);
}
REG_EXTENDED bit in CFLAGS is set; otherwise, to
RE_SYNTAX_POSIX_BASIC;
`newline_anchor' to REG_NEWLINE being set in CFLAGS;
- `fastmap' and `fastmap_accurate' to zero;
+ `fastmap' to an allocated space for the fastmap;
+ `fastmap_accurate' to zero;
`re_nsub' to the number of subexpressions in PATTERN.
PATTERN is the address of the pattern string.
preg->allocated = 0;
preg->used = 0;
- /* Don't bother to use a fastmap when searching. This simplifies the
- REG_NEWLINE case: if we used a fastmap, we'd have to put all the
- characters after newlines into the fastmap. This way, we just try
- every character. */
- preg->fastmap = 0;
+ /* Try to allocate space for the fastmap. */
+ preg->fastmap = (char *) malloc (1 << BYTEWIDTH);
if (cflags & REG_ICASE)
{
/* Map uppercase characters to corresponding lowercase ones. */
for (i = 0; i < CHAR_SET_SIZE; i++)
- preg->translate[i] = ISUPPER (i) ? tolower (i) : i;
+ preg->translate[i] = ISUPPER (i) ? TOLOWER (i) : i;
}
else
preg->translate = NULL;
unmatched close-group: both are REG_EPAREN. */
if (ret == REG_ERPAREN) ret = REG_EPAREN;
+ if (ret == REG_NOERROR && preg->fastmap)
+ {
+ /* Compute the fastmap now, since regexec cannot modify the pattern
+ buffer. */
+ if (re_compile_fastmap (preg) == -2)
+ {
+ /* Some error occurred while computing the fastmap, just forget
+ about it. */
+ free (preg->fastmap);
+ preg->fastmap = NULL;
+ }
+ }
+
return (int) ret;
}
+#ifdef _LIBC
+weak_alias (__regcomp, regcomp)
+#endif
/* regexec searches for a given pattern, specified by PREG, in the
if (want_reg_info)
{
regs.num_regs = nmatch;
- regs.start = TALLOC (nmatch, regoff_t);
- regs.end = TALLOC (nmatch, regoff_t);
- if (regs.start == NULL || regs.end == NULL)
+ regs.start = TALLOC (nmatch * 2, regoff_t);
+ if (regs.start == NULL)
return (int) REG_NOMATCH;
+ regs.end = regs.start + nmatch;
}
/* Perform the searching operation. */
/* If we needed the temporary register info, free the space now. */
free (regs.start);
- free (regs.end);
}
/* We want zero return to mean success, unlike `re_search'. */
return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH;
}
+#ifdef _LIBC
+weak_alias (__regexec, regexec)
+#endif
/* Returns a message corresponding to an error code, ERRCODE, returned
size_t msg_size;
if (errcode < 0
- || errcode >= (int) (sizeof (re_error_msgid)
- / sizeof (re_error_msgid[0])))
+ || errcode >= (int) (sizeof (re_error_msgid_idx)
+ / sizeof (re_error_msgid_idx[0])))
/* Only error codes returned by the rest of the code should be passed
to this routine. If we are given anything else, or if other regex
code generates an invalid error code, then the program has a bug.
Dump core so we can fix it. */
abort ();
- msg = gettext (re_error_msgid[errcode]);
+ msg = gettext (re_error_msgid + re_error_msgid_idx[errcode]);
msg_size = strlen (msg) + 1; /* Includes the null. */
return msg_size;
}
+#ifdef _LIBC
+weak_alias (__regerror, regerror)
+#endif
/* Free dynamically allocated space used by PREG. */
free (preg->translate);
preg->translate = NULL;
}
+#ifdef _LIBC
+weak_alias (__regfree, regfree)
+#endif
#endif /* not emacs */
projects / gnulib.git / blobdiff