#if defined _AIX && !defined __GNUC__ && !defined REGEX_MALLOC
#pragma alloca
#endif
#undef _GNU_SOURCE
#define _GNU_SOURCE
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <ansidecl.h>
#ifndef PARAMS
# if defined __GNUC__ || (defined __STDC__ && __STDC__)
# define PARAMS(args) args
# else
# define PARAMS(args) ()
# endif
#endif
#ifndef INSIDE_RECURSION
# if defined STDC_HEADERS && !defined emacs
# include <stddef.h>
# else
# include <sys/types.h>
# endif
# define WIDE_CHAR_SUPPORT (HAVE_WCTYPE_H && HAVE_WCHAR_H && HAVE_BTOWC)
# if defined _LIBC || WIDE_CHAR_SUPPORT
# include <wchar.h>
# include <wctype.h>
# endif
# ifdef _LIBC
# 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
# include <locale/localeinfo.h>
# include <locale/elem-hash.h>
# include <langinfo.h>
# include <locale/coll-lookup.h>
# endif
# if (HAVE_LIBINTL_H && ENABLE_NLS) || 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 gettext_noop
# define gettext_noop(String) String
# endif
# ifdef emacs
# include "lisp.h"
# include "buffer.h"
# include "syntax.h"
# else
# undef REL_ALLOC
# if defined STDC_HEADERS || defined _LIBC
# include <stdlib.h>
# else
char *malloc ();
char *realloc ();
# endif
# ifdef INHIBIT_STRING_HEADER
# if !(defined HAVE_BZERO && defined HAVE_BCOPY)
# if !defined bzero && !defined bcopy
# undef INHIBIT_STRING_HEADER
# endif
# endif
# endif
# ifndef INHIBIT_STRING_HEADER
# if defined HAVE_STRING_H || defined STDC_HEADERS || defined _LIBC
# include <string.h>
# 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>
# ifndef memcmp
# define memcmp(s1, s2, n) bcmp (s1, s2, n)
# endif
# ifndef memcpy
# define memcpy(d, s, n) (bcopy (s, d, n), (d))
# endif
# endif
# endif
# ifndef Sword
# define Sword 1
# endif
# ifdef SWITCH_ENUM_BUG
# define SWITCH_ENUM_CAST(x) ((int)(x))
# else
# define SWITCH_ENUM_CAST(x) (x)
# endif
# endif
# if defined _LIBC || HAVE_LIMITS_H
# include <limits.h>
# endif
# ifndef MB_LEN_MAX
# define MB_LEN_MAX 1
# endif
# include "xregex.h"
# include <ctype.h>
# undef ISASCII
# if defined STDC_HEADERS || (!defined isascii && !defined HAVE_ISASCII)
# define ISASCII(c) 1
# else
# define ISASCII(c) isascii(c)
# endif
# ifdef isblank
# define ISBLANK(c) (ISASCII (c) && isblank (c))
# else
# define ISBLANK(c) ((c) == ' ' || (c) == '\t')
# endif
# ifdef isgraph
# define ISGRAPH(c) (ISASCII (c) && isgraph (c))
# else
# define ISGRAPH(c) (ISASCII (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))
# ifdef _tolower
# define TOLOWER(c) _tolower(c)
# else
# define TOLOWER(c) tolower(c)
# endif
# ifndef NULL
# define NULL (void *)0
# endif
# undef SIGN_EXTEND_CHAR
# if __STDC__
# define SIGN_EXTEND_CHAR(c) ((signed char) (c))
# else
# define SIGN_EXTEND_CHAR(c) ((((unsigned char) (c)) ^ 128) - 128)
# endif
# ifndef emacs
# define CHAR_SET_SIZE 256
# ifdef SYNTAX_TABLE
extern char *re_syntax_table;
# else
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
# define SYNTAX(c) re_syntax_table[(unsigned char) (c)]
# endif
# if !defined _LIBC && !defined HAVE_UINTPTR_T
typedef unsigned long int uintptr_t;
# endif
# ifdef REGEX_MALLOC
# define REGEX_ALLOCATE malloc
# define REGEX_REALLOCATE(source, osize, nsize) realloc (source, nsize)
# define REGEX_FREE free
# else
# ifndef alloca
# ifdef __GNUC__
# define alloca __builtin_alloca
# else
# if HAVE_ALLOCA_H
# include <alloca.h>
# endif
# endif
# endif
# define REGEX_ALLOCATE alloca
# define REGEX_REALLOCATE(source, osize, nsize) \
(destination = (char *) alloca (nsize), \
memcpy (destination, source, osize))
# define REGEX_FREE(arg) ((void)0)
# endif
# if defined REL_ALLOC && defined REGEX_MALLOC
# define REGEX_ALLOCATE_STACK(size) \
r_alloc (&failure_stack_ptr, (size))
# define REGEX_REALLOCATE_STACK(source, osize, nsize) \
r_re_alloc (&failure_stack_ptr, (nsize))
# define REGEX_FREE_STACK(ptr) \
r_alloc_free (&failure_stack_ptr)
# else
# ifdef REGEX_MALLOC
# define REGEX_ALLOCATE_STACK malloc
# define REGEX_REALLOCATE_STACK(source, osize, nsize) realloc (source, nsize)
# define REGEX_FREE_STACK free
# else
# define REGEX_ALLOCATE_STACK alloca
# define REGEX_REALLOCATE_STACK(source, osize, nsize) \
REGEX_REALLOCATE (source, osize, nsize)
# define REGEX_FREE_STACK(arg)
# endif
# endif
# define FIRST_STRING_P(ptr) \
(size1 && string1 <= (ptr) && (ptr) <= string1 + size1)
# define TALLOC(n, t) ((t *) malloc ((n) * sizeof (t)))
# define RETALLOC(addr, n, t) ((addr) = (t *) realloc (addr, (n) * sizeof (t)))
# define RETALLOC_IF(addr, n, t) \
if (addr) RETALLOC((addr), (n), t); else (addr) = TALLOC ((n), t)
# define REGEX_TALLOC(n, t) ((t *) REGEX_ALLOCATE ((n) * sizeof (t)))
# define BYTEWIDTH 8
# define STREQ(s1, s2) ((strcmp (s1, s2) == 0))
# undef MAX
# undef MIN
# define MAX(a, b) ((a) > (b) ? (a) : (b))
# define MIN(a, b) ((a) < (b) ? (a) : (b))
typedef char boolean;
# define false 0
# define true 1
static reg_errcode_t byte_regex_compile _RE_ARGS ((const char *pattern, size_t size,
reg_syntax_t syntax,
struct re_pattern_buffer *bufp));
static int byte_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp,
const char *string1, int size1,
const char *string2, int size2,
int pos,
struct re_registers *regs,
int stop));
static int byte_re_search_2 PARAMS ((struct re_pattern_buffer *bufp,
const char *string1, int size1,
const char *string2, int size2,
int startpos, int range,
struct re_registers *regs, int stop));
static int byte_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp));
#ifdef MBS_SUPPORT
static reg_errcode_t wcs_regex_compile _RE_ARGS ((const char *pattern, size_t size,
reg_syntax_t syntax,
struct re_pattern_buffer *bufp));
static int wcs_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp,
const char *cstring1, int csize1,
const char *cstring2, int csize2,
int pos,
struct re_registers *regs,
int stop,
wchar_t *string1, int size1,
wchar_t *string2, int size2,
int *mbs_offset1, int *mbs_offset2));
static int wcs_re_search_2 PARAMS ((struct re_pattern_buffer *bufp,
const char *string1, int size1,
const char *string2, int size2,
int startpos, int range,
struct re_registers *regs, int stop));
static int wcs_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp));
#endif
typedef enum
{
no_op = 0,
succeed,
exactn,
# ifdef MBS_SUPPORT
exactn_bin,
# endif
anychar,
charset,
charset_not,
start_memory,
stop_memory,
duplicate,
begline,
endline,
begbuf,
endbuf,
jump,
jump_past_alt,
on_failure_jump,
on_failure_keep_string_jump,
pop_failure_jump,
maybe_pop_jump,
dummy_failure_jump,
push_dummy_failure,
succeed_n,
jump_n,
set_number_at,
wordchar,
notwordchar,
wordbeg,
wordend,
wordbound,
notwordbound
# ifdef emacs
,before_dot,
at_dot,
after_dot,
syntaxspec,
notsyntaxspec
# endif
} re_opcode_t;
#endif
#ifdef BYTE
# define CHAR_T char
# define UCHAR_T unsigned char
# define COMPILED_BUFFER_VAR bufp->buffer
# define OFFSET_ADDRESS_SIZE 2
# if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
# define PREFIX(name) byte_##name
# else
# define PREFIX(name) byte_name
# endif
# define ARG_PREFIX(name) name
# define PUT_CHAR(c) putchar (c)
#else
# ifdef WCHAR
# define CHAR_T wchar_t
# define UCHAR_T wchar_t
# define COMPILED_BUFFER_VAR wc_buffer
# define OFFSET_ADDRESS_SIZE 1
# define CHAR_CLASS_SIZE ((__alignof__(wctype_t)+sizeof(wctype_t))/sizeof(CHAR_T)+1)
# if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
# define PREFIX(name) wcs_##name
# define ARG_PREFIX(name) c##name
# else
# define PREFIX(name) wcs_name
# define ARG_PREFIX(name) cname
# endif
# define PUT_CHAR(c) printf ("%C", c);
# define TRUE 1
# define FALSE 0
# else
# ifdef MBS_SUPPORT
# define WCHAR
# define INSIDE_RECURSION
# include "regex.c"
# undef INSIDE_RECURSION
# endif
# define BYTE
# define INSIDE_RECURSION
# include "regex.c"
# undef INSIDE_RECURSION
# endif
#endif
#ifdef INSIDE_RECURSION
# ifdef WCHAR
# define STORE_NUMBER(destination, number) \
do { \
*(destination) = (UCHAR_T)(number); \
} while (0)
# else
# define STORE_NUMBER(destination, number) \
do { \
(destination)[0] = (number) & 0377; \
(destination)[1] = (number) >> 8; \
} while (0)
# endif
# define STORE_NUMBER_AND_INCR(destination, number) \
do { \
STORE_NUMBER (destination, number); \
(destination) += OFFSET_ADDRESS_SIZE; \
} while (0)
# ifdef WCHAR
# 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 PREFIX(extract_number) _RE_ARGS ((int *dest, UCHAR_T *source));
static void
PREFIX(extract_number) (dest, source)
int *dest;
UCHAR_T *source;
{
# ifdef WCHAR
*dest = *source;
# else
int temp = SIGN_EXTEND_CHAR (*(source + 1));
*dest = *source & 0377;
*dest += temp << 8;
# endif
}
# ifndef EXTRACT_MACROS
# undef EXTRACT_NUMBER
# define EXTRACT_NUMBER(dest, src) PREFIX(extract_number) (&dest, src)
# endif
# endif
# define EXTRACT_NUMBER_AND_INCR(destination, source) \
do { \
EXTRACT_NUMBER (destination, source); \
(source) += OFFSET_ADDRESS_SIZE; \
} while (0)
# ifdef DEBUG
static void PREFIX(extract_number_and_incr) _RE_ARGS ((int *destination,
UCHAR_T **source));
static void
PREFIX(extract_number_and_incr) (destination, source)
int *destination;
UCHAR_T **source;
{
PREFIX(extract_number) (destination, *source);
*source += OFFSET_ADDRESS_SIZE;
}
# ifndef EXTRACT_MACROS
# undef EXTRACT_NUMBER_AND_INCR
# define EXTRACT_NUMBER_AND_INCR(dest, src) \
PREFIX(extract_number_and_incr) (&dest, &src)
# endif
# endif
# ifdef DEBUG
# ifndef DEFINED_ONCE
# include <stdio.h>
# include <assert.h>
static int debug;
# define DEBUG_STATEMENT(e) e
# define DEBUG_PRINT1(x) if (debug) printf (x)
# define DEBUG_PRINT2(x1, x2) if (debug) printf (x1, x2)
# define DEBUG_PRINT3(x1, x2, x3) if (debug) printf (x1, x2, x3)
# define DEBUG_PRINT4(x1, x2, x3, x4) if (debug) printf (x1, x2, x3, x4)
# endif
# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e) \
if (debug) PREFIX(print_partial_compiled_pattern) (s, e)
# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2) \
if (debug) PREFIX(print_double_string) (w, s1, sz1, s2, sz2)
# ifndef DEFINED_ONCE
void
print_fastmap (fastmap)
char *fastmap;
{
unsigned was_a_range = 0;
unsigned i = 0;
while (i < (1 << BYTEWIDTH))
{
if (fastmap[i++])
{
was_a_range = 0;
putchar (i - 1);
while (i < (1 << BYTEWIDTH) && fastmap[i])
{
was_a_range = 1;
i++;
}
if (was_a_range)
{
printf ("-");
putchar (i - 1);
}
}
}
putchar ('\n');
}
# endif
void
PREFIX(print_partial_compiled_pattern) (start, end)
UCHAR_T *start;
UCHAR_T *end;
{
int mcnt, mcnt2;
UCHAR_T *p1;
UCHAR_T *p = start;
UCHAR_T *pend = end;
if (start == NULL)
{
printf ("(null)\n");
return;
}
while (p < pend)
{
# ifdef _LIBC
printf ("%td:\t", p - start);
# else
printf ("%ld:\t", (long int) (p - start));
# endif
switch ((re_opcode_t) *p++)
{
case no_op:
printf ("/no_op");
break;
case exactn:
mcnt = *p++;
printf ("/exactn/%d", mcnt);
do
{
putchar ('/');
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
case start_memory:
mcnt = *p++;
printf ("/start_memory/%d/%ld", mcnt, (long int) *p++);
break;
case stop_memory:
mcnt = *p++;
printf ("/stop_memory/%d/%ld", mcnt, (long int) *p++);
break;
case duplicate:
printf ("/duplicate/%ld", (long int) *p++);
break;
case anychar:
printf ("/anychar");
break;
case charset:
case charset_not:
{
# ifdef WCHAR
int i, length;
wchar_t *workp = p;
printf ("/charset [%s",
(re_opcode_t) *(workp - 1) == charset_not ? "^" : "");
p += 5;
length = *workp++;
for (i=0 ; i<length ; i++)
printf("[:%lx:]", (long int) *p++);
length = *workp++;
for (i=0 ; i<length ;)
{
printf("[.");
while(*p != 0)
PUT_CHAR((i++,*p++));
i++,p++;
printf(".]");
}
length = *workp++;
for (i=0 ; i<length ;)
{
printf("[=");
while(*p != 0)
PUT_CHAR((i++,*p++));
i++,p++;
printf("=]");
}
length = *workp++;
for (i=0 ; i<length ; i++)
{
wchar_t range_start = *p++;
wchar_t range_end = *p++;
printf("%C-%C", range_start, range_end);
}
length = *workp++;
for (i=0 ; i<length ; i++)
printf("%C", *p++);
putchar (']');
# else
register int c, last = -100;
register int in_range = 0;
printf ("/charset [%s",
(re_opcode_t) *(p - 1) == charset_not ? "^" : "");
assert (p + *p < pend);
for (c = 0; c < 256; c++)
if (c / 8 < *p
&& (p[1 + (c/8)] & (1 << (c % 8))))
{
if (last + 1 == c && ! in_range)
{
putchar ('-');
in_range = 1;
}
else if (last + 1 != c && in_range)
{
putchar (last);
in_range = 0;
}
if (! in_range)
putchar (c);
last = c;
}
if (in_range)
putchar (last);
putchar (']');
p += 1 + *p;
# endif
}
break;
case begline:
printf ("/begline");
break;
case endline:
printf ("/endline");
break;
case on_failure_jump:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# 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:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# 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:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# 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:
printf ("/push_dummy_failure");
break;
case maybe_pop_jump:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# 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:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# 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:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# 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:
PREFIX(extract_number_and_incr) (&mcnt, &p);
# ifdef _LIBC
printf ("/jump to %td", p + mcnt - start);
# else
printf ("/jump to %ld", (long int) (p + mcnt - start));
# endif
break;
case succeed_n:
PREFIX(extract_number_and_incr) (&mcnt, &p);
p1 = p + mcnt;
PREFIX(extract_number_and_incr) (&mcnt2, &p);
# 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:
PREFIX(extract_number_and_incr) (&mcnt, &p);
p1 = p + mcnt;
PREFIX(extract_number_and_incr) (&mcnt2, &p);
printf ("/jump_n to %d, %d times", p1 - start, mcnt2);
break;
case set_number_at:
PREFIX(extract_number_and_incr) (&mcnt, &p);
p1 = p + mcnt;
PREFIX(extract_number_and_incr) (&mcnt2, &p);
# 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:
printf ("/wordbound");
break;
case notwordbound:
printf ("/notwordbound");
break;
case wordbeg:
printf ("/wordbeg");
break;
case wordend:
printf ("/wordend");
break;
# ifdef emacs
case before_dot:
printf ("/before_dot");
break;
case at_dot:
printf ("/at_dot");
break;
case after_dot:
printf ("/after_dot");
break;
case syntaxspec:
printf ("/syntaxspec");
mcnt = *p++;
printf ("/%d", mcnt);
break;
case notsyntaxspec:
printf ("/notsyntaxspec");
mcnt = *p++;
printf ("/%d", mcnt);
break;
# endif
case wordchar:
printf ("/wordchar");
break;
case notwordchar:
printf ("/notwordchar");
break;
case begbuf:
printf ("/begbuf");
break;
case endbuf:
printf ("/endbuf");
break;
default:
printf ("?%ld", (long int) *(p-1));
}
putchar ('\n');
}
# ifdef _LIBC
printf ("%td:\tend of pattern.\n", p - start);
# else
printf ("%ld:\tend of pattern.\n", (long int) (p - start));
# endif
}
void
PREFIX(print_compiled_pattern) (bufp)
struct re_pattern_buffer *bufp;
{
UCHAR_T *buffer = (UCHAR_T*) bufp->buffer;
PREFIX(print_partial_compiled_pattern) (buffer, buffer
+ bufp->used / sizeof(UCHAR_T));
printf ("%ld bytes used/%ld bytes allocated.\n",
bufp->used, bufp->allocated);
if (bufp->fastmap_accurate && bufp->fastmap)
{
printf ("fastmap: ");
print_fastmap (bufp->fastmap);
}
# 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);
printf ("no_sub: %d\t", bufp->no_sub);
printf ("not_bol: %d\t", bufp->not_bol);
printf ("not_eol: %d\t", bufp->not_eol);
printf ("syntax: %lx\n", bufp->syntax);
}
void
PREFIX(print_double_string) (where, string1, size1, string2, size2)
const CHAR_T *where;
const CHAR_T *string1;
const CHAR_T *string2;
int size1;
int size2;
{
int this_char;
if (where == NULL)
printf ("(null)");
else
{
int cnt;
if (FIRST_STRING_P (where))
{
for (this_char = where - string1; this_char < size1; this_char++)
PUT_CHAR (string1[this_char]);
where = string2;
}
cnt = 0;
for (this_char = where - string2; this_char < size2; this_char++)
{
PUT_CHAR (string2[this_char]);
if (++cnt > 100)
{
fputs ("...", stdout);
break;
}
}
}
}
# ifndef DEFINED_ONCE
void
printchar (c)
int c;
{
putc (c, stderr);
}
# endif
# else
# ifndef DEFINED_ONCE
# undef assert
# define assert(e)
# define DEBUG_STATEMENT(e)
# define DEBUG_PRINT1(x)
# define DEBUG_PRINT2(x1, x2)
# define DEBUG_PRINT3(x1, x2, x3)
# define DEBUG_PRINT4(x1, x2, x3, x4)
# endif
# define DEBUG_PRINT_COMPILED_PATTERN(p, s, e)
# define DEBUG_PRINT_DOUBLE_STRING(w, s1, sz1, s2, sz2)
# endif
# ifdef WCHAR
static size_t convert_mbs_to_wcs (CHAR_T *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_T *dest;
const unsigned char* src;
size_t len;
int *offset_buffer;
char *is_binary;
{
wchar_t *pdest = dest;
const unsigned char *psrc = src;
size_t wc_count = 0;
mbstate_t mbs;
int i, consumed;
size_t mb_remain = len;
size_t mb_count = 0;
memset (&mbs, 0, sizeof (mbstate_t));
offset_buffer[0] = 0;
for( ; mb_remain > 0 ; ++wc_count, ++pdest, mb_remain -= consumed,
psrc += consumed)
{
#ifdef _LIBC
consumed = __mbrtowc (pdest, psrc, mb_remain, &mbs);
#else
consumed = mbrtowc (pdest, psrc, mb_remain, &mbs);
#endif
if (consumed <= 0)
{
*pdest = *psrc;
consumed = 1;
is_binary[wc_count] = TRUE;
}
else
is_binary[wc_count] = FALSE;
if (consumed == 1 && (int) *psrc == 0x5c && (int) *pdest == 0xa5)
*pdest = (wchar_t) *psrc;
offset_buffer[wc_count + 1] = mb_count += consumed;
}
for (i = wc_count + 1 ; i <= len ; i++)
offset_buffer[i] = mb_count + 1;
return wc_count;
}
# endif
#else
reg_syntax_t re_syntax_options;
reg_syntax_t
re_set_syntax (syntax)
reg_syntax_t syntax;
{
reg_syntax_t ret = re_syntax_options;
re_syntax_options = syntax;
# ifdef DEBUG
if (syntax & RE_DEBUG)
debug = 1;
else if (debug)
debug = 0;
# endif
return ret;
}
# ifdef _LIBC
weak_alias (__re_set_syntax, re_set_syntax)
# endif
static const char *re_error_msgid[] =
{
gettext_noop ("Success"),
gettext_noop ("No match"),
gettext_noop ("Invalid regular expression"),
gettext_noop ("Invalid collation character"),
gettext_noop ("Invalid character class name"),
gettext_noop ("Trailing backslash"),
gettext_noop ("Invalid back reference"),
gettext_noop ("Unmatched [ or [^"),
gettext_noop ("Unmatched ( or \\("),
gettext_noop ("Unmatched \\{"),
gettext_noop ("Invalid content of \\{\\}"),
gettext_noop ("Invalid range end"),
gettext_noop ("Memory exhausted"),
gettext_noop ("Invalid preceding regular expression"),
gettext_noop ("Premature end of regular expression"),
gettext_noop ("Regular expression too big"),
gettext_noop ("Unmatched ) or \\)")
};
#endif
#ifndef DEFINED_ONCE
# define MATCH_MAY_ALLOCATE
# ifdef __GNUC__
# undef C_ALLOCA
# endif
# if (defined C_ALLOCA || defined REGEX_MALLOC) && defined emacs
# undef MATCH_MAY_ALLOCATE
# endif
#endif
#ifdef INSIDE_RECURSION
# ifndef INIT_FAILURE_ALLOC
# define INIT_FAILURE_ALLOC 5
# endif
# ifdef INT_IS_16BIT
# ifndef DEFINED_ONCE
# if defined MATCH_MAY_ALLOCATE
long int re_max_failures = 4000;
# else
long int re_max_failures = 2000;
# endif
# endif
union PREFIX(fail_stack_elt)
{
UCHAR_T *pointer;
long int integer;
};
typedef union PREFIX(fail_stack_elt) PREFIX(fail_stack_elt_t);
typedef struct
{
PREFIX(fail_stack_elt_t) *stack;
unsigned long int size;
unsigned long int avail;
} PREFIX(fail_stack_type);
# else
# ifndef DEFINED_ONCE
# if defined MATCH_MAY_ALLOCATE
int re_max_failures = 4000;
# else
int re_max_failures = 2000;
# endif
# endif
union PREFIX(fail_stack_elt)
{
UCHAR_T *pointer;
int integer;
};
typedef union PREFIX(fail_stack_elt) PREFIX(fail_stack_elt_t);
typedef struct
{
PREFIX(fail_stack_elt_t) *stack;
unsigned size;
unsigned avail;
} PREFIX(fail_stack_type);
# endif
# ifndef DEFINED_ONCE
# define FAIL_STACK_EMPTY() (fail_stack.avail == 0)
# define FAIL_STACK_PTR_EMPTY() (fail_stack_ptr->avail == 0)
# define FAIL_STACK_FULL() (fail_stack.avail == fail_stack.size)
# endif
# ifdef MATCH_MAY_ALLOCATE
# define INIT_FAIL_STACK() \
do { \
fail_stack.stack = (PREFIX(fail_stack_elt_t) *) \
REGEX_ALLOCATE_STACK (INIT_FAILURE_ALLOC * sizeof (PREFIX(fail_stack_elt_t))); \
\
if (fail_stack.stack == NULL) \
return -2; \
\
fail_stack.size = INIT_FAILURE_ALLOC; \
fail_stack.avail = 0; \
} while (0)
# define RESET_FAIL_STACK() REGEX_FREE_STACK (fail_stack.stack)
# else
# define INIT_FAIL_STACK() \
do { \
fail_stack.avail = 0; \
} while (0)
# define RESET_FAIL_STACK()
# endif
# define DOUBLE_FAIL_STACK(fail_stack) \
((fail_stack).size > (unsigned) (re_max_failures * MAX_FAILURE_ITEMS) \
? 0 \
: ((fail_stack).stack = (PREFIX(fail_stack_elt_t) *) \
REGEX_REALLOCATE_STACK ((fail_stack).stack, \
(fail_stack).size * sizeof (PREFIX(fail_stack_elt_t)), \
((fail_stack).size << 1) * sizeof (PREFIX(fail_stack_elt_t))),\
\
(fail_stack).stack == NULL \
? 0 \
: ((fail_stack).size <<= 1, \
1)))
# define PUSH_PATTERN_OP(POINTER, FAIL_STACK) \
((FAIL_STACK_FULL () \
&& !DOUBLE_FAIL_STACK (FAIL_STACK)) \
? 0 \
: ((FAIL_STACK).stack[(FAIL_STACK).avail++].pointer = POINTER, \
1))
# define PUSH_FAILURE_POINTER(item) \
fail_stack.stack[fail_stack.avail++].pointer = (UCHAR_T *) (item)
# define PUSH_FAILURE_INT(item) \
fail_stack.stack[fail_stack.avail++].integer = (item)
# define PUSH_FAILURE_ELT(item) \
fail_stack.stack[fail_stack.avail++] = (item)
# define POP_FAILURE_POINTER() fail_stack.stack[--fail_stack.avail].pointer
# define POP_FAILURE_INT() fail_stack.stack[--fail_stack.avail].integer
# define POP_FAILURE_ELT() fail_stack.stack[--fail_stack.avail]
# ifdef DEBUG
# define DEBUG_PUSH PUSH_FAILURE_INT
# define DEBUG_POP(item_addr) *(item_addr) = POP_FAILURE_INT ()
# else
# define DEBUG_PUSH(item)
# define DEBUG_POP(item_addr)
# endif
# define PUSH_FAILURE_POINT(pattern_place, string_place, failure_code) \
do { \
char *destination; \
\
\
active_reg_t this_reg; \
\
DEBUG_STATEMENT (failure_id++); \
DEBUG_STATEMENT (nfailure_points_pushed++); \
DEBUG_PRINT2 ("\nPUSH_FAILURE_POINT #%u:\n", failure_id); \
DEBUG_PRINT2 (" Before push, next avail: %d\n", (fail_stack).avail);\
DEBUG_PRINT2 (" size: %d\n", (fail_stack).size);\
\
DEBUG_PRINT2 (" slots needed: %ld\n", NUM_FAILURE_ITEMS); \
DEBUG_PRINT2 (" available: %d\n", REMAINING_AVAIL_SLOTS); \
\
\
while (REMAINING_AVAIL_SLOTS < NUM_FAILURE_ITEMS) \
{ \
if (!DOUBLE_FAIL_STACK (fail_stack)) \
return failure_code; \
\
DEBUG_PRINT2 ("\n Doubled stack; size now: %d\n", \
(fail_stack).size); \
DEBUG_PRINT2 (" slots available: %d\n", REMAINING_AVAIL_SLOTS);\
} \
\
\
DEBUG_PRINT1 ("\n"); \
\
if (1) \
for (this_reg = lowest_active_reg; this_reg <= highest_active_reg; \
this_reg++) \
{ \
DEBUG_PRINT2 (" Pushing reg: %lu\n", this_reg); \
DEBUG_STATEMENT (num_regs_pushed++); \
\
DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \
PUSH_FAILURE_POINTER (regstart[this_reg]); \
\
DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \
PUSH_FAILURE_POINTER (regend[this_reg]); \
\
DEBUG_PRINT2 (" info: %p\n ", \
reg_info[this_reg].word.pointer); \
DEBUG_PRINT2 (" match_null=%d", \
REG_MATCH_NULL_STRING_P (reg_info[this_reg])); \
DEBUG_PRINT2 (" active=%d", IS_ACTIVE (reg_info[this_reg])); \
DEBUG_PRINT2 (" matched_something=%d", \
MATCHED_SOMETHING (reg_info[this_reg])); \
DEBUG_PRINT2 (" ever_matched=%d", \
EVER_MATCHED_SOMETHING (reg_info[this_reg])); \
DEBUG_PRINT1 ("\n"); \
PUSH_FAILURE_ELT (reg_info[this_reg].word); \
} \
\
DEBUG_PRINT2 (" Pushing low active reg: %ld\n", lowest_active_reg);\
PUSH_FAILURE_INT (lowest_active_reg); \
\
DEBUG_PRINT2 (" Pushing high active reg: %ld\n", highest_active_reg);\
PUSH_FAILURE_INT (highest_active_reg); \
\
DEBUG_PRINT2 (" Pushing pattern %p:\n", pattern_place); \
DEBUG_PRINT_COMPILED_PATTERN (bufp, pattern_place, pend); \
PUSH_FAILURE_POINTER (pattern_place); \
\
DEBUG_PRINT2 (" Pushing string %p: `", string_place); \
DEBUG_PRINT_DOUBLE_STRING (string_place, string1, size1, string2, \
size2); \
DEBUG_PRINT1 ("'\n"); \
PUSH_FAILURE_POINTER (string_place); \
\
DEBUG_PRINT2 (" Pushing failure id: %u\n", failure_id); \
DEBUG_PUSH (failure_id); \
} while (0)
# ifndef DEFINED_ONCE
# define NUM_REG_ITEMS 3
# ifdef DEBUG
# define NUM_NONREG_ITEMS 5
# else
# define NUM_NONREG_ITEMS 4
# endif
# define MAX_FAILURE_ITEMS (5 * NUM_REG_ITEMS + NUM_NONREG_ITEMS)
# define NUM_FAILURE_ITEMS \
(((0 \
? 0 : highest_active_reg - lowest_active_reg + 1) \
* NUM_REG_ITEMS) \
+ NUM_NONREG_ITEMS)
# define REMAINING_AVAIL_SLOTS ((fail_stack).size - (fail_stack).avail)
# endif
# 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 UCHAR_T *string_temp; \
\
assert (!FAIL_STACK_EMPTY ()); \
\
\
DEBUG_PRINT1 ("POP_FAILURE_POINT:\n"); \
DEBUG_PRINT2 (" Before pop, next avail: %d\n", fail_stack.avail); \
DEBUG_PRINT2 (" size: %d\n", fail_stack.size); \
\
assert (fail_stack.avail >= NUM_NONREG_ITEMS); \
\
DEBUG_POP (&failure_id); \
DEBUG_PRINT2 (" Popping failure id: %u\n", failure_id); \
\
\
string_temp = POP_FAILURE_POINTER (); \
if (string_temp != NULL) \
str = (const CHAR_T *) string_temp; \
\
DEBUG_PRINT2 (" Popping string %p: `", str); \
DEBUG_PRINT_DOUBLE_STRING (str, string1, size1, string2, size2); \
DEBUG_PRINT1 ("'\n"); \
\
pat = (UCHAR_T *) POP_FAILURE_POINTER (); \
DEBUG_PRINT2 (" Popping pattern %p:\n", pat); \
DEBUG_PRINT_COMPILED_PATTERN (bufp, pat, pend); \
\
\
high_reg = (active_reg_t) POP_FAILURE_INT (); \
DEBUG_PRINT2 (" Popping high active reg: %ld\n", high_reg); \
\
low_reg = (active_reg_t) POP_FAILURE_INT (); \
DEBUG_PRINT2 (" Popping low active reg: %ld\n", low_reg); \
\
if (1) \
for (this_reg = high_reg; this_reg >= low_reg; this_reg--) \
{ \
DEBUG_PRINT2 (" Popping reg: %ld\n", this_reg); \
\
reg_info[this_reg].word = POP_FAILURE_ELT (); \
DEBUG_PRINT2 (" info: %p\n", \
reg_info[this_reg].word.pointer); \
\
regend[this_reg] = (const CHAR_T *) POP_FAILURE_POINTER (); \
DEBUG_PRINT2 (" end: %p\n", regend[this_reg]); \
\
regstart[this_reg] = (const CHAR_T *) POP_FAILURE_POINTER (); \
DEBUG_PRINT2 (" start: %p\n", regstart[this_reg]); \
} \
else \
{ \
for (this_reg = highest_active_reg; this_reg > high_reg; this_reg--) \
{ \
reg_info[this_reg].word.integer = 0; \
regend[this_reg] = 0; \
regstart[this_reg] = 0; \
} \
highest_active_reg = high_reg; \
} \
\
set_regs_matched_done = 0; \
DEBUG_STATEMENT (nfailure_points_popped++); \
}
typedef union
{
PREFIX(fail_stack_elt_t) word;
struct
{
# define MATCH_NULL_UNSET_VALUE 3
unsigned match_null_string_p : 2;
unsigned is_active : 1;
unsigned matched_something : 1;
unsigned ever_matched_something : 1;
} bits;
} PREFIX(register_info_type);
# ifndef DEFINED_ONCE
# define REG_MATCH_NULL_STRING_P(R) ((R).bits.match_null_string_p)
# define IS_ACTIVE(R) ((R).bits.is_active)
# define MATCHED_SOMETHING(R) ((R).bits.matched_something)
# define EVER_MATCHED_SOMETHING(R) ((R).bits.ever_matched_something)
# define SET_REGS_MATCHED() \
do \
{ \
if (!set_regs_matched_done) \
{ \
active_reg_t r; \
set_regs_matched_done = 1; \
for (r = lowest_active_reg; r <= highest_active_reg; r++) \
{ \
MATCHED_SOMETHING (reg_info[r]) \
= EVER_MATCHED_SOMETHING (reg_info[r]) \
= 1; \
} \
} \
} \
while (0)
# endif
static CHAR_T PREFIX(reg_unset_dummy);
# define REG_UNSET_VALUE (&PREFIX(reg_unset_dummy))
# define REG_UNSET(e) ((e) == REG_UNSET_VALUE)
static void PREFIX(store_op1) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc, int arg));
static void PREFIX(store_op2) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc,
int arg1, int arg2));
static void PREFIX(insert_op1) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc,
int arg, UCHAR_T *end));
static void PREFIX(insert_op2) _RE_ARGS ((re_opcode_t op, UCHAR_T *loc,
int arg1, int arg2, UCHAR_T *end));
static boolean PREFIX(at_begline_loc_p) _RE_ARGS ((const CHAR_T *pattern,
const CHAR_T *p,
reg_syntax_t syntax));
static boolean PREFIX(at_endline_loc_p) _RE_ARGS ((const CHAR_T *p,
const CHAR_T *pend,
reg_syntax_t syntax));
# ifdef WCHAR
static reg_errcode_t wcs_compile_range _RE_ARGS ((CHAR_T range_start,
const CHAR_T **p_ptr,
const CHAR_T *pend,
char *translate,
reg_syntax_t syntax,
UCHAR_T *b,
CHAR_T *char_set));
static void insert_space _RE_ARGS ((int num, CHAR_T *loc, CHAR_T *end));
# else
static reg_errcode_t byte_compile_range _RE_ARGS ((unsigned int range_start,
const char **p_ptr,
const char *pend,
char *translate,
reg_syntax_t syntax,
unsigned char *b));
# endif
# ifndef PATFETCH
# ifdef WCHAR
# define PATFETCH(c) \
do {if (p == pend) return REG_EEND; \
c = (UCHAR_T) *p++; \
if (translate && (c <= 0xff)) c = (UCHAR_T) 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
# endif
# define PATFETCH_RAW(c) \
do {if (p == pend) return REG_EEND; \
c = (UCHAR_T) *p++; \
} while (0)
# define PATUNFETCH p--
# ifndef TRANSLATE
# ifdef WCHAR
# define TRANSLATE(d) \
((translate && ((UCHAR_T) (d)) <= 0xff) \
? (char) translate[(unsigned char) (d)] : (d))
# else
# define TRANSLATE(d) \
(translate ? (char) translate[(unsigned char) (d)] : (d))
# endif
# endif
# define INIT_BUF_SIZE (32 * sizeof(UCHAR_T))
# ifdef WCHAR
# define GET_BUFFER_SPACE(n) \
while (((unsigned long)b - (unsigned long)COMPILED_BUFFER_VAR \
+ (n)*sizeof(CHAR_T)) > bufp->allocated) \
EXTEND_BUFFER ()
# else
# define GET_BUFFER_SPACE(n) \
while ((unsigned long) (b - bufp->buffer + (n)) > bufp->allocated) \
EXTEND_BUFFER ()
# endif
# define BUF_PUSH(c) \
do { \
GET_BUFFER_SPACE (1); \
*b++ = (UCHAR_T) (c); \
} while (0)
# define BUF_PUSH_2(c1, c2) \
do { \
GET_BUFFER_SPACE (2); \
*b++ = (UCHAR_T) (c1); \
*b++ = (UCHAR_T) (c2); \
} while (0)
# define BUF_PUSH_3(c1, c2, c3) \
do { \
GET_BUFFER_SPACE (3); \
*b++ = (UCHAR_T) (c1); \
*b++ = (UCHAR_T) (c2); \
*b++ = (UCHAR_T) (c3); \
} while (0)
# define STORE_JUMP(op, loc, to) \
PREFIX(store_op1) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)))
# define STORE_JUMP2(op, loc, to, arg) \
PREFIX(store_op2) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), arg)
# define INSERT_JUMP(op, loc, to) \
PREFIX(insert_op1) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)), b)
# define INSERT_JUMP2(op, loc, to, arg) \
PREFIX(insert_op2) (op, loc, (int) ((to) - (loc) - (1 + OFFSET_ADDRESS_SIZE)),\
arg, b)
# ifndef DEFINED_ONCE
# if defined _MSC_VER && !defined WIN32
# define MAX_BUF_SIZE 65500L
# define REALLOC(p,s) realloc ((p), (size_t) (s))
# else
# define MAX_BUF_SIZE (1L << 16)
# define REALLOC(p,s) realloc ((p), (s))
# endif
# 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
# endif
# ifdef WCHAR
# define EXTEND_BUFFER() \
do { \
UCHAR_T *old_buffer = COMPILED_BUFFER_VAR; \
int wchar_count; \
if (bufp->allocated + sizeof(UCHAR_T) > MAX_BUF_SIZE) \
return REG_ESIZE; \
bufp->allocated <<= 1; \
if (bufp->allocated > MAX_BUF_SIZE) \
bufp->allocated = MAX_BUF_SIZE; \
\
wchar_count = bufp->allocated / sizeof(UCHAR_T); \
if (wchar_count == 0) wchar_count = 1; \
\
bufp->allocated = wchar_count * sizeof(UCHAR_T); \
RETALLOC (COMPILED_BUFFER_VAR, wchar_count, UCHAR_T); \
bufp->buffer = (char*)COMPILED_BUFFER_VAR; \
if (COMPILED_BUFFER_VAR == NULL) \
return REG_ESPACE; \
\
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)
# else
# define EXTEND_BUFFER() \
do { \
UCHAR_T *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 = (UCHAR_T *) REALLOC (COMPILED_BUFFER_VAR, \
bufp->allocated); \
if (COMPILED_BUFFER_VAR == NULL) \
return REG_ESPACE; \
\
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
# ifndef DEFINED_ONCE
# define MAX_REGNUM 255
typedef unsigned regnum_t;
typedef long pattern_offset_t;
typedef struct
{
pattern_offset_t begalt_offset;
pattern_offset_t fixup_alt_jump;
pattern_offset_t inner_group_offset;
pattern_offset_t laststart_offset;
regnum_t regnum;
} compile_stack_elt_t;
typedef struct
{
compile_stack_elt_t *stack;
unsigned size;
unsigned avail;
} compile_stack_type;
# define INIT_COMPILE_STACK_SIZE 32
# define COMPILE_STACK_EMPTY (compile_stack.avail == 0)
# define COMPILE_STACK_FULL (compile_stack.avail == compile_stack.size)
# define COMPILE_STACK_TOP (compile_stack.stack[compile_stack.avail])
# endif
# ifndef DEFINED_ONCE
# define SET_LIST_BIT(c) \
(b[((unsigned char) (c)) / BYTEWIDTH] \
|= 1 << (((unsigned char) c) % BYTEWIDTH))
# endif
# 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'; \
} \
} \
}
# ifndef DEFINED_ONCE
# if defined _LIBC || WIDE_CHAR_SUPPORT
# ifdef CHARCLASS_NAME_MAX
# define CHAR_CLASS_MAX_LENGTH CHARCLASS_NAME_MAX
# else
# define CHAR_CLASS_MAX_LENGTH 256
# endif
# 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
# define IS_CHAR_CLASS(string) \
(STREQ (string, "alpha") || STREQ (string, "upper") \
|| STREQ (string, "lower") || STREQ (string, "digit") \
|| STREQ (string, "alnum") || STREQ (string, "xdigit") \
|| STREQ (string, "space") || STREQ (string, "print") \
|| STREQ (string, "punct") || STREQ (string, "graph") \
|| STREQ (string, "cntrl") || STREQ (string, "blank"))
# endif
# endif
# ifndef MATCH_MAY_ALLOCATE
static PREFIX(fail_stack_type) fail_stack;
# ifdef DEFINED_ONCE
static int regs_allocated_size;
static const char ** regstart, ** regend;
static const char ** old_regstart, ** old_regend;
static const char **best_regstart, **best_regend;
static const char **reg_dummy;
# endif
static PREFIX(register_info_type) *PREFIX(reg_info);
static PREFIX(register_info_type) *PREFIX(reg_info_dummy);
static void
PREFIX(regex_grow_registers) (num_regs)
int num_regs;
{
if (num_regs > regs_allocated_size)
{
RETALLOC_IF (regstart, num_regs, const char *);
RETALLOC_IF (regend, num_regs, const char *);
RETALLOC_IF (old_regstart, num_regs, const char *);
RETALLOC_IF (old_regend, num_regs, const char *);
RETALLOC_IF (best_regstart, num_regs, const char *);
RETALLOC_IF (best_regend, num_regs, const char *);
RETALLOC_IF (PREFIX(reg_info), num_regs, PREFIX(register_info_type));
RETALLOC_IF (reg_dummy, num_regs, const char *);
RETALLOC_IF (PREFIX(reg_info_dummy), num_regs, PREFIX(register_info_type));
regs_allocated_size = num_regs;
}
}
# endif
# ifndef DEFINED_ONCE
static boolean group_in_compile_stack _RE_ARGS ((compile_stack_type
compile_stack,
regnum_t regnum));
# endif
# ifdef WCHAR
# 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
static reg_errcode_t
PREFIX(regex_compile) (ARG_PREFIX(pattern), ARG_PREFIX(size), syntax, bufp)
const char *ARG_PREFIX(pattern);
size_t ARG_PREFIX(size);
reg_syntax_t syntax;
struct re_pattern_buffer *bufp;
{
register UCHAR_T c, c1;
#ifdef WCHAR
CHAR_T *pattern, *COMPILED_BUFFER_VAR;
size_t size;
int *mbs_offset = NULL;
char *is_binary = NULL;
char is_exactn_bin = FALSE;
#endif
const CHAR_T *p1;
register UCHAR_T *b;
compile_stack_type compile_stack;
#ifdef WCHAR
const CHAR_T *p;
const CHAR_T *pend;
#else
const CHAR_T *p = pattern;
const CHAR_T *pend = pattern + size;
#endif
RE_TRANSLATE_TYPE translate = bufp->translate;
UCHAR_T *pending_exact = 0;
UCHAR_T *laststart = 0;
UCHAR_T *begalt;
UCHAR_T *fixup_alt_jump = 0;
regnum_t regnum = 0;
#ifdef WCHAR
p = pend = pattern = TALLOC(csize + 1, CHAR_T);
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';
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++)
PUT_CHAR (pattern[debug_count]);
putchar ('\n');
}
#endif
compile_stack.stack = TALLOC (INIT_COMPILE_STACK_SIZE, compile_stack_elt_t);
if (compile_stack.stack == NULL)
{
#ifdef WCHAR
free(pattern);
free(mbs_offset);
free(is_binary);
#endif
return REG_ESPACE;
}
compile_stack.size = INIT_COMPILE_STACK_SIZE;
compile_stack.avail = 0;
bufp->syntax = syntax;
bufp->fastmap_accurate = 0;
bufp->not_bol = bufp->not_eol = 0;
bufp->used = 0;
bufp->re_nsub = 0;
#if !defined emacs && !defined SYNTAX_TABLE
init_syntax_once ();
#endif
if (bufp->allocated == 0)
{
if (bufp->buffer)
{
#ifdef WCHAR
free(bufp->buffer);
COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE/sizeof(UCHAR_T),
UCHAR_T);
#else
RETALLOC (COMPILED_BUFFER_VAR, INIT_BUF_SIZE, UCHAR_T);
#endif
}
else
{
COMPILED_BUFFER_VAR = TALLOC (INIT_BUF_SIZE / sizeof(UCHAR_T),
UCHAR_T);
}
if (!COMPILED_BUFFER_VAR) FREE_STACK_RETURN (REG_ESPACE);
#ifdef WCHAR
bufp->buffer = (char*)COMPILED_BUFFER_VAR;
#endif
bufp->allocated = INIT_BUF_SIZE;
}
#ifdef WCHAR
else
COMPILED_BUFFER_VAR = (UCHAR_T*) bufp->buffer;
#endif
begalt = b = COMPILED_BUFFER_VAR;
while (p != pend)
{
PATFETCH (c);
switch (c)
{
case '^':
{
if (
p == pattern + 1
|| syntax & RE_CONTEXT_INDEP_ANCHORS
|| PREFIX(at_begline_loc_p) (pattern, p, syntax))
BUF_PUSH (begline);
else
goto normal_char;
}
break;
case '$':
{
if (
p == pend
|| syntax & RE_CONTEXT_INDEP_ANCHORS
|| PREFIX(at_endline_loc_p) (p, pend, syntax))
BUF_PUSH (endline);
else
goto normal_char;
}
break;
case '+':
case '?':
if ((syntax & RE_BK_PLUS_QM)
|| (syntax & RE_LIMITED_OPS))
goto normal_char;
handle_plus:
case '*':
if (!laststart)
{
if (syntax & RE_CONTEXT_INVALID_OPS)
FREE_STACK_RETURN (REG_BADRPT);
else if (!(syntax & RE_CONTEXT_INDEP_OPS))
goto normal_char;
}
{
boolean keep_string_p = false;
char zero_times_ok = 0, many_times_ok = 0;
for (;;)
{
zero_times_ok |= c != '+';
many_times_ok |= c != '?';
if (p == pend)
break;
PATFETCH (c);
if (c == '*'
|| (!(syntax & RE_BK_PLUS_QM) && (c == '+' || c == '?')))
;
else if (syntax & RE_BK_PLUS_QM && c == '\\')
{
if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
PATFETCH (c1);
if (!(c1 == '+' || c1 == '?'))
{
PATUNFETCH;
PATUNFETCH;
break;
}
c = c1;
}
else
{
PATUNFETCH;
break;
}
}
if (!laststart)
break;
if (many_times_ok)
{
assert (p - 1 > pattern);
GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
if (TRANSLATE (*(p - 2)) == TRANSLATE ('.')
&& zero_times_ok
&& p < pend && TRANSLATE (*p) == TRANSLATE ('\n')
&& !(syntax & RE_DOT_NEWLINE))
{
STORE_JUMP (jump, b, laststart);
keep_string_p = true;
}
else
STORE_JUMP (maybe_pop_jump, b, laststart -
(1 + OFFSET_ADDRESS_SIZE));
b += 1 + OFFSET_ADDRESS_SIZE;
}
GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
INSERT_JUMP (keep_string_p ? on_failure_keep_string_jump
: on_failure_jump,
laststart, b + 1 + OFFSET_ADDRESS_SIZE);
pending_exact = 0;
b += 1 + OFFSET_ADDRESS_SIZE;
if (!zero_times_ok)
{
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 '.':
laststart = b;
BUF_PUSH (anychar);
break;
case '[':
{
boolean had_char_class = false;
#ifdef WCHAR
CHAR_T range_start = 0xffffffff;
#else
unsigned int range_start = 0xffffffff;
#endif
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
#ifdef WCHAR
GET_BUFFER_SPACE (6);
laststart = b;
BUF_PUSH (*p == '^' ? charset_not : charset);
if (*p == '^')
p++;
BUF_PUSH_3 (0, 0, 0);
BUF_PUSH_2 (0, 0);
p1 = p;
if ((re_opcode_t) b[-6] == charset_not
&& (syntax & RE_HAT_LISTS_NOT_NEWLINE))
{
BUF_PUSH('\n');
laststart[5]++;
}
for (;;)
{
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
PATFETCH (c);
if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\')
{
if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
PATFETCH (c1);
BUF_PUSH(c1);
laststart[5]++;
range_start = c1;
continue;
}
if (c == ']' && p != p1 + 1)
break;
if (had_char_class && c == '-' && *p != ']')
FREE_STACK_RETURN (REG_ERANGE);
if (c == '-'
&& !(p - 2 >= pattern && p[-2] == '[')
&& !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^')
&& *p != ']')
{
reg_errcode_t ret;
GET_BUFFER_SPACE (2);
b += 2;
ret = wcs_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] != ']')
{
reg_errcode_t ret;
PATFETCH (c1);
GET_BUFFER_SPACE (2);
b += 2;
ret = wcs_compile_range (c, &p, pend, translate, syntax, b,
laststart);
if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
range_start = 0xffffffff;
}
else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':')
{
char str[CHAR_CLASS_MAX_LENGTH + 1];
PATFETCH (c);
c1 = 0;
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
str[0] = '\0';
}
str[c1] = '\0';
if (c == ':' && *p == ']')
{
wctype_t wt;
uintptr_t alignedp;
wt = IS_CHAR_CLASS (str);
if (wt == 0)
FREE_STACK_RETURN (REG_ECTYPE);
PATFETCH (c);
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
GET_BUFFER_SPACE(CHAR_CLASS_SIZE);
b += CHAR_CLASS_SIZE;
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);
*((wctype_t*)alignedp) = wt;
laststart[1] += CHAR_CLASS_SIZE;
had_char_class = true;
}
else
{
c1++;
while (c1--)
PATUNFETCH;
BUF_PUSH ('[');
BUF_PUSH (':');
laststart[5] += 2;
range_start = ':';
had_char_class = false;
}
}
else if (syntax & RE_CHAR_CLASSES && c == '[' && (*p == '='
|| *p == '.'))
{
CHAR_T str[128];
CHAR_T delim = *p;
# ifdef _LIBC
uint32_t nrules =
_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
# endif
PATFETCH (c);
c1 = 0;
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
str[0] = '\0';
}
str[c1] = '\0';
if (c == delim && *p == ']' && str[0] != '\0')
{
unsigned int i, offset;
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;
# include <locale/weightwc.h>
if(delim == '=')
{
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)
FREE_STACK_RETURN (REG_ECOLLATE);
str[0] = (wchar_t)idx;
}
else
{
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];
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);
hash = elem_hash (char_str, c1);
idx = 0;
elem = hash % table_size;
second = hash % (table_size - 2);
while (symb_table[2 * elem] != 0)
{
if (symb_table[2 * elem] == hash
&& c1 == extra[symb_table[2 * elem + 1]]
&& memcmp (char_str,
&extra[symb_table[2 * elem + 1]
+ 1], c1) == 0)
{
idx = symb_table[2 * elem + 1];
idx += 1 + extra[idx];
break;
}
elem += second;
}
if (symb_table[2 * elem] != 0)
{
idx += 1 + extra[idx];
idx = (idx + 3) & ~3;
str[0] = (wchar_t) idx + 4;
}
else if (symb_table[2 * elem] == 0 && c1 == 1)
{
had_char_class = false;
BUF_PUSH(str[0]);
laststart[5]++;
range_start = str[0];
PATFETCH (c);
continue;
}
else
FREE_STACK_RETURN (REG_ECOLLATE);
}
datasize = 1;
}
# endif
PATFETCH (c);
GET_BUFFER_SPACE(datasize);
b += datasize;
if (delim == '=')
{
offset = laststart[1] + laststart[2]
+ laststart[3] +6;
insert_space(datasize, laststart + offset, b - 1);
for (i = 0 ; i < datasize ; i++)
laststart[offset + i] = str[i];
laststart[3] += datasize;
had_char_class = true;
}
else
{
offset = laststart[1] + laststart[2] + 6;
insert_space(datasize, laststart + offset, b-1);
for (i = 0 ; i < datasize ; i++)
laststart[offset + i] = str[i];
range_start = -(laststart[1] + laststart[2] + 6);
laststart[2] += datasize;
had_char_class = false;
}
}
else
{
c1++;
while (c1--)
PATUNFETCH;
BUF_PUSH ('[');
BUF_PUSH (delim);
laststart[5] += 2;
range_start = delim;
had_char_class = false;
}
}
else
{
had_char_class = false;
BUF_PUSH(c);
laststart[5]++;
range_start = c;
}
}
#else
GET_BUFFER_SPACE (34);
laststart = b;
BUF_PUSH (*p == '^' ? charset_not : charset);
if (*p == '^')
p++;
p1 = p;
BUF_PUSH ((1 << BYTEWIDTH) / BYTEWIDTH);
bzero (b, (1 << BYTEWIDTH) / BYTEWIDTH);
if ((re_opcode_t) b[-2] == charset_not
&& (syntax & RE_HAT_LISTS_NOT_NEWLINE))
SET_LIST_BIT ('\n');
for (;;)
{
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
PATFETCH (c);
if ((syntax & RE_BACKSLASH_ESCAPE_IN_LISTS) && c == '\\')
{
if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
PATFETCH (c1);
SET_LIST_BIT (c1);
range_start = c1;
continue;
}
if (c == ']' && p != p1 + 1)
break;
if (had_char_class && c == '-' && *p != ']')
FREE_STACK_RETURN (REG_ERANGE);
if (c == '-'
&& !(p - 2 >= pattern && p[-2] == '[')
&& !(p - 3 >= pattern && p[-3] == '[' && p[-2] == '^')
&& *p != ']')
{
reg_errcode_t ret
= byte_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] != ']')
{
reg_errcode_t ret;
PATFETCH (c1);
ret = byte_compile_range (c, &p, pend, translate, syntax, b);
if (ret != REG_NOERROR) FREE_STACK_RETURN (ret);
range_start = 0xffffffff;
}
else if (syntax & RE_CHAR_CLASSES && c == '[' && *p == ':')
{
char str[CHAR_CLASS_MAX_LENGTH + 1];
PATFETCH (c);
c1 = 0;
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
str[0] = '\0';
}
str[c1] = '\0';
if (c == ':' && *p == ']')
{
# if defined _LIBC || WIDE_CHAR_SUPPORT
boolean is_lower = STREQ (str, "lower");
boolean is_upper = STREQ (str, "upper");
wctype_t wt;
int ch;
wt = IS_CHAR_CLASS (str);
if (wt == 0)
FREE_STACK_RETURN (REG_ECTYPE);
PATFETCH (c);
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
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)))
SET_LIST_BIT (ch);
}
had_char_class = true;
# else
int ch;
boolean is_alnum = STREQ (str, "alnum");
boolean is_alpha = STREQ (str, "alpha");
boolean is_blank = STREQ (str, "blank");
boolean is_cntrl = STREQ (str, "cntrl");
boolean is_digit = STREQ (str, "digit");
boolean is_graph = STREQ (str, "graph");
boolean is_lower = STREQ (str, "lower");
boolean is_print = STREQ (str, "print");
boolean is_punct = STREQ (str, "punct");
boolean is_space = STREQ (str, "space");
boolean is_upper = STREQ (str, "upper");
boolean is_xdigit = STREQ (str, "xdigit");
if (!IS_CHAR_CLASS (str))
FREE_STACK_RETURN (REG_ECTYPE);
PATFETCH (c);
if (p == pend) FREE_STACK_RETURN (REG_EBRACK);
for (ch = 0; ch < 1 << BYTEWIDTH; ch++)
{
if ( (is_alnum && ISALNUM (ch))
|| (is_alpha && ISALPHA (ch))
|| (is_blank && ISBLANK (ch))
|| (is_cntrl && ISCNTRL (ch)))
SET_LIST_BIT (ch);
if ( (is_digit && ISDIGIT (ch))
|| (is_graph && ISGRAPH (ch))
|| (is_lower && ISLOWER (ch))
|| (is_print && ISPRINT (ch)))
SET_LIST_BIT (ch);
if ( (is_punct && ISPUNCT (ch))
|| (is_space && ISSPACE (ch))
|| (is_upper && ISUPPER (ch))
|| (is_xdigit && ISXDIGIT (ch)))
SET_LIST_BIT (ch);
if ( translate && (is_upper || is_lower)
&& (ISUPPER (ch) || ISLOWER (ch)))
SET_LIST_BIT (ch);
}
had_char_class = true;
# endif
}
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[MB_LEN_MAX + 1];
# ifdef _LIBC
uint32_t nrules =
_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
# endif
PATFETCH (c);
c1 = 0;
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
str[0] = '\0';
}
str[c1] = '\0';
if (c == '=' && *p == ']' && str[0] != '\0')
{
# ifdef _LIBC
if (nrules == 0)
# endif
{
if (c1 != 1)
FREE_STACK_RETURN (REG_ECOLLATE);
PATFETCH (c);
SET_LIST_BIT (str[0]);
}
# ifdef _LIBC
else
{
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;
# 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)
FREE_STACK_RETURN (REG_ECOLLATE);
PATFETCH (c);
for (ch = 1; ch < 256; ++ch)
if (table[ch] > 0)
{
int32_t idx2 = table[ch];
size_t len = weights[idx2];
if (weights[idx] == len)
{
size_t cnt = 0;
while (cnt < len
&& (weights[idx + 1 + cnt]
== weights[idx2 + 1 + cnt]))
++cnt;
if (cnt == len)
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];
# ifdef _LIBC
uint32_t nrules =
_NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
# endif
PATFETCH (c);
c1 = 0;
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
str[0] = '\0';
}
str[c1] = '\0';
if (c == '.' && *p == ']' && str[0] != '\0')
{
# ifdef _LIBC
if (nrules == 0)
# endif
{
if (c1 != 1)
FREE_STACK_RETURN (REG_ECOLLATE);
PATFETCH (c);
SET_LIST_BIT (str[0]);
range_start = ((const unsigned char *) str)[0];
}
# ifdef _LIBC
else
{
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);
hash = elem_hash (str, c1);
idx = 0;
elem = hash % table_size;
second = hash % (table_size - 2);
while (symb_table[2 * elem] != 0)
{
if (symb_table[2 * elem] == hash
&& c1 == extra[symb_table[2 * elem + 1]]
&& memcmp (str,
&extra[symb_table[2 * elem + 1]
+ 1],
c1) == 0)
{
idx = symb_table[2 * elem + 1];
idx += 1 + extra[idx];
break;
}
elem += second;
}
if (symb_table[2 * elem] == 0)
FREE_STACK_RETURN (REG_ECOLLATE);
PATFETCH (c);
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
}
break;
case '(':
if (syntax & RE_NO_BK_PARENS)
goto handle_open;
else
goto normal_char;
case ')':
if (syntax & RE_NO_BK_PARENS)
goto handle_close;
else
goto normal_char;
case '\n':
if (syntax & RE_NEWLINE_ALT)
goto handle_alt;
else
goto normal_char;
case '|':
if (syntax & RE_NO_BK_VBAR)
goto handle_alt;
else
goto normal_char;
case '{':
if (syntax & RE_INTERVALS && syntax & RE_NO_BK_BRACES)
goto handle_interval;
else
goto normal_char;
case '\\':
if (p == pend) FREE_STACK_RETURN (REG_EESCAPE);
PATFETCH_RAW (c);
switch (c)
{
case '(':
if (syntax & RE_NO_BK_PARENS)
goto normal_backslash;
handle_open:
bufp->re_nsub++;
regnum++;
if (COMPILE_STACK_FULL)
{
RETALLOC (compile_stack.stack, compile_stack.size << 1,
compile_stack_elt_t);
if (compile_stack.stack == NULL) return REG_ESPACE;
compile_stack.size <<= 1;
}
COMPILE_STACK_TOP.begalt_offset = begalt - COMPILED_BUFFER_VAR;
COMPILE_STACK_TOP.fixup_alt_jump
= 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;
if (regnum <= MAX_REGNUM)
{
COMPILE_STACK_TOP.inner_group_offset = b
- COMPILED_BUFFER_VAR + 2;
BUF_PUSH_3 (start_memory, regnum, 0);
}
compile_stack.avail++;
fixup_alt_jump = 0;
laststart = 0;
begalt = b;
pending_exact = 0;
break;
case ')':
if (syntax & RE_NO_BK_PARENS) goto normal_backslash;
if (COMPILE_STACK_EMPTY)
{
if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
goto normal_backslash;
else
FREE_STACK_RETURN (REG_ERPAREN);
}
handle_close:
if (fixup_alt_jump)
{
BUF_PUSH (push_dummy_failure);
STORE_JUMP (jump_past_alt, fixup_alt_jump, b - 1);
}
if (COMPILE_STACK_EMPTY)
{
if (syntax & RE_UNMATCHED_RIGHT_PAREN_ORD)
goto normal_char;
else
FREE_STACK_RETURN (REG_ERPAREN);
}
assert (compile_stack.avail != 0);
{
regnum_t this_group_regnum;
compile_stack.avail--;
begalt = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.begalt_offset;
fixup_alt_jump
= COMPILE_STACK_TOP.fixup_alt_jump
? COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.fixup_alt_jump - 1
: 0;
laststart = COMPILED_BUFFER_VAR + COMPILE_STACK_TOP.laststart_offset;
this_group_regnum = COMPILE_STACK_TOP.regnum;
pending_exact = 0;
if (this_group_regnum <= MAX_REGNUM)
{
UCHAR_T *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,
regnum - this_group_regnum);
}
}
break;
case '|':
if (syntax & RE_LIMITED_OPS || syntax & RE_NO_BK_VBAR)
goto normal_backslash;
handle_alt:
if (syntax & RE_LIMITED_OPS)
goto normal_char;
GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
INSERT_JUMP (on_failure_jump, begalt,
b + 2 + 2 * OFFSET_ADDRESS_SIZE);
pending_exact = 0;
b += 1 + OFFSET_ADDRESS_SIZE;
if (fixup_alt_jump)
STORE_JUMP (jump_past_alt, fixup_alt_jump, b);
fixup_alt_jump = b;
GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
b += 1 + OFFSET_ADDRESS_SIZE;
laststart = 0;
begalt = b;
break;
case '{':
if (!(syntax & RE_INTERVALS)
|| (syntax & RE_NO_BK_BRACES))
goto normal_backslash;
handle_interval:
{
int lower_bound = -1, upper_bound = -1;
const CHAR_T *beg_interval = p;
if (p == pend)
goto invalid_interval;
GET_UNSIGNED_NUMBER (lower_bound);
if (c == ',')
{
GET_UNSIGNED_NUMBER (upper_bound);
if (upper_bound < 0)
upper_bound = RE_DUP_MAX;
}
else
upper_bound = lower_bound;
if (! (0 <= lower_bound && lower_bound <= upper_bound))
goto invalid_interval;
if (!(syntax & RE_NO_BK_BRACES))
{
if (c != '\\' || p == pend)
goto invalid_interval;
PATFETCH (c);
}
if (c != '}')
goto invalid_interval;
if (!laststart)
{
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;
else
goto unfetch_interval;
}
if (RE_DUP_MAX < upper_bound)
FREE_STACK_RETURN (REG_BADBR);
if (upper_bound == 0)
{
GET_BUFFER_SPACE (1 + OFFSET_ADDRESS_SIZE);
INSERT_JUMP (jump, laststart, b + 1
+ OFFSET_ADDRESS_SIZE);
b += 1 + OFFSET_ADDRESS_SIZE;
}
else
{
unsigned nbytes = 2 + 4 * OFFSET_ADDRESS_SIZE +
(upper_bound > 1) * (2 + 4 * OFFSET_ADDRESS_SIZE);
GET_BUFFER_SPACE (nbytes);
INSERT_JUMP2 (succeed_n, laststart,
b + 1 + 2 * OFFSET_ADDRESS_SIZE
+ (upper_bound > 1) * (1 + 2 * OFFSET_ADDRESS_SIZE)
, lower_bound);
b += 1 + 2 * OFFSET_ADDRESS_SIZE;
PREFIX(insert_op2) (set_number_at, laststart, 1
+ 2 * OFFSET_ADDRESS_SIZE, lower_bound, b);
b += 1 + 2 * OFFSET_ADDRESS_SIZE;
if (upper_bound > 1)
{
STORE_JUMP2 (jump_n, b, laststart
+ 2 * OFFSET_ADDRESS_SIZE + 1,
upper_bound - 1);
b += 1 + 2 * OFFSET_ADDRESS_SIZE;
PREFIX(insert_op2) (set_number_at, laststart,
b - laststart,
upper_bound - 1, b);
b += 1 + 2 * OFFSET_ADDRESS_SIZE;
}
}
pending_exact = 0;
break;
invalid_interval:
if (!(syntax & RE_INVALID_INTERVAL_ORD))
FREE_STACK_RETURN (p == pend ? REG_EBRACE : REG_BADBR);
unfetch_interval:
p = beg_interval;
c = '{';
if (syntax & RE_NO_BK_BRACES)
goto normal_char;
else
goto normal_backslash;
}
#ifdef emacs
case '=':
BUF_PUSH (at_dot);
break;
case 's':
laststart = b;
PATFETCH (c);
BUF_PUSH_2 (syntaxspec, syntax_spec_code[c]);
break;
case 'S':
laststart = b;
PATFETCH (c);
BUF_PUSH_2 (notsyntaxspec, syntax_spec_code[c]);
break;
#endif
case 'w':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
laststart = b;
BUF_PUSH (wordchar);
break;
case 'W':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
laststart = b;
BUF_PUSH (notwordchar);
break;
case '<':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (wordbeg);
break;
case '>':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (wordend);
break;
case 'b':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (wordbound);
break;
case 'B':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (notwordbound);
break;
case '`':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (begbuf);
break;
case '\'':
if (syntax & RE_NO_GNU_OPS)
goto normal_char;
BUF_PUSH (endbuf);
break;
case '1': case '2': case '3': case '4': case '5':
case '6': case '7': case '8': case '9':
if (syntax & RE_NO_BK_REFS)
goto normal_char;
c1 = c - '0';
if (c1 > regnum)
FREE_STACK_RETURN (REG_ESUBREG);
if (group_in_compile_stack (compile_stack, (regnum_t) c1))
goto normal_char;
laststart = b;
BUF_PUSH_2 (duplicate, c1);
break;
case '+':
case '?':
if (syntax & RE_BK_PLUS_QM)
goto handle_plus;
else
goto normal_backslash;
default:
normal_backslash:
c = TRANSLATE (c);
goto normal_char;
}
break;
default:
normal_char:
if (!pending_exact
#ifdef WCHAR
|| is_exactn_bin != is_binary[p - 1 - pattern]
#endif
|| pending_exact + *pending_exact + 1 != b
|| *pending_exact == (1 << BYTEWIDTH) - 1
|| *p == '*' || *p == '^'
|| ((syntax & RE_BK_PLUS_QM)
? *p == '\\' && (p[1] == '+' || p[1] == '?')
: (*p == '+' || *p == '?'))
|| ((syntax & RE_INTERVALS)
&& ((syntax & RE_NO_BK_BRACES)
? *p == '{'
: (p[0] == '\\' && p[1] == '{'))))
{
laststart = b;
#ifdef WCHAR
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
pending_exact = b - 1;
}
BUF_PUSH (c);
(*pending_exact)++;
break;
}
}
if (fixup_alt_jump)
STORE_JUMP (jump_past_alt, fixup_alt_jump, b);
if (!COMPILE_STACK_EMPTY)
FREE_STACK_RETURN (REG_EPAREN);
if (syntax & RE_NO_POSIX_BACKTRACKING)
BUF_PUSH (succeed);
#ifdef WCHAR
free (pattern);
free (mbs_offset);
free (is_binary);
#endif
free (compile_stack.stack);
#ifdef WCHAR
bufp->used = (uintptr_t) b - (uintptr_t) COMPILED_BUFFER_VAR;
#else
bufp->used = b - bufp->buffer;
#endif
#ifdef DEBUG
if (debug)
{
DEBUG_PRINT1 ("\nCompiled pattern: \n");
PREFIX(print_compiled_pattern) (bufp);
}
#endif
#ifndef MATCH_MAY_ALLOCATE
{
int num_regs = bufp->re_nsub + 1;
if (fail_stack.size < (2 * re_max_failures * MAX_FAILURE_ITEMS))
{
fail_stack.size = (2 * re_max_failures * MAX_FAILURE_ITEMS);
# ifdef emacs
if (! fail_stack.stack)
fail_stack.stack
= (PREFIX(fail_stack_elt_t) *) xmalloc (fail_stack.size
* sizeof (PREFIX(fail_stack_elt_t)));
else
fail_stack.stack
= (PREFIX(fail_stack_elt_t) *) xrealloc (fail_stack.stack,
(fail_stack.size
* sizeof (PREFIX(fail_stack_elt_t))));
# else
if (! fail_stack.stack)
fail_stack.stack
= (PREFIX(fail_stack_elt_t) *) malloc (fail_stack.size
* sizeof (PREFIX(fail_stack_elt_t)));
else
fail_stack.stack
= (PREFIX(fail_stack_elt_t) *) realloc (fail_stack.stack,
(fail_stack.size
* sizeof (PREFIX(fail_stack_elt_t))));
# endif
}
PREFIX(regex_grow_registers) (num_regs);
}
#endif
return REG_NOERROR;
}
static void
PREFIX(store_op1) (op, loc, arg)
re_opcode_t op;
UCHAR_T *loc;
int arg;
{
*loc = (UCHAR_T) op;
STORE_NUMBER (loc + 1, arg);
}
static void
PREFIX(store_op2) (op, loc, arg1, arg2)
re_opcode_t op;
UCHAR_T *loc;
int arg1, arg2;
{
*loc = (UCHAR_T) op;
STORE_NUMBER (loc + 1, arg1);
STORE_NUMBER (loc + 1 + OFFSET_ADDRESS_SIZE, arg2);
}
static void
PREFIX(insert_op1) (op, loc, arg, end)
re_opcode_t op;
UCHAR_T *loc;
int arg;
UCHAR_T *end;
{
register UCHAR_T *pfrom = end;
register UCHAR_T *pto = end + 1 + OFFSET_ADDRESS_SIZE;
while (pfrom != loc)
*--pto = *--pfrom;
PREFIX(store_op1) (op, loc, arg);
}
static void
PREFIX(insert_op2) (op, loc, arg1, arg2, end)
re_opcode_t op;
UCHAR_T *loc;
int arg1, arg2;
UCHAR_T *end;
{
register UCHAR_T *pfrom = end;
register UCHAR_T *pto = end + 1 + 2 * OFFSET_ADDRESS_SIZE;
while (pfrom != loc)
*--pto = *--pfrom;
PREFIX(store_op2) (op, loc, arg1, arg2);
}
static boolean
PREFIX(at_begline_loc_p) (pattern, p, syntax)
const CHAR_T *pattern, *p;
reg_syntax_t syntax;
{
const CHAR_T *prev = p - 2;
boolean prev_prev_backslash = prev > pattern && prev[-1] == '\\';
return
(*prev == '(' && (syntax & RE_NO_BK_PARENS || prev_prev_backslash))
|| (*prev == '|' && (syntax & RE_NO_BK_VBAR || prev_prev_backslash));
}
static boolean
PREFIX(at_endline_loc_p) (p, pend, syntax)
const CHAR_T *p, *pend;
reg_syntax_t syntax;
{
const CHAR_T *next = p;
boolean next_backslash = *next == '\\';
const CHAR_T *next_next = p + 1 < pend ? p + 1 : 0;
return
(syntax & RE_NO_BK_PARENS ? *next == ')'
: next_backslash && next_next && *next_next == ')')
|| (syntax & RE_NO_BK_VBAR ? *next == '|'
: next_backslash && next_next && *next_next == '|');
}
#else
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;
}
#endif
#ifdef INSIDE_RECURSION
#ifdef WCHAR
static void
insert_space (num, loc, end)
int num;
CHAR_T *loc;
CHAR_T *end;
{
register CHAR_T *pto = end;
register CHAR_T *pfrom = end - num;
while (pfrom >= loc)
*pto-- = *pfrom--;
}
#endif
#ifdef WCHAR
static reg_errcode_t
wcs_compile_range (range_start_char, p_ptr, pend, translate, syntax, b,
char_set)
CHAR_T range_start_char;
const CHAR_T **p_ptr, *pend;
CHAR_T *char_set, *b;
RE_TRANSLATE_TYPE translate;
reg_syntax_t syntax;
{
const CHAR_T *p = *p_ptr;
CHAR_T 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);
if (range_start_char < -1)
{
int32_t *wextra;
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));
end_val = collseq_table_lookup (collseq, TRANSLATE (p[0]));
ret = ((syntax & RE_NO_EMPTY_RANGES)
&& (start_val > end_val))? REG_ERANGE : REG_NOERROR;
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]++;
}
else
# endif
{
range_start = (range_start_char >= 0)? TRANSLATE (range_start_char):
range_start_char;
range_end = TRANSLATE (p[0]);
ret = ((syntax & RE_NO_EMPTY_RANGES)
&& (range_start > range_end))? REG_ERANGE : REG_NOERROR;
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]++;
}
(*p_ptr)++;
return ret;
}
#else
static reg_errcode_t
byte_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;
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;
(*p_ptr)++;
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
range_start_char = TRANSLATE (range_start_char);
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 ret;
}
#endif
#ifdef WCHAR
static unsigned char truncate_wchar (CHAR_T c);
static unsigned char
truncate_wchar (c)
CHAR_T c;
{
unsigned char buf[MB_CUR_MAX];
mbstate_t state;
int retval;
memset (&state, '\0', sizeof (state));
# ifdef _LIBC
retval = __wcrtomb (buf, c, &state);
# else
retval = wcrtomb (buf, c, &state);
# endif
return retval > 0 ? buf[0] : (unsigned char) c;
}
#endif
static int
PREFIX(re_compile_fastmap) (bufp)
struct re_pattern_buffer *bufp;
{
int j, k;
#ifdef MATCH_MAY_ALLOCATE
PREFIX(fail_stack_type) fail_stack;
#endif
#ifndef REGEX_MALLOC
char *destination;
#endif
register char *fastmap = bufp->fastmap;
#ifdef WCHAR
UCHAR_T *pattern = (UCHAR_T*)bufp->buffer;
register UCHAR_T *pend = (UCHAR_T*) (bufp->buffer + bufp->used);
#else
UCHAR_T *pattern = bufp->buffer;
register UCHAR_T *pend = pattern + bufp->used;
#endif
UCHAR_T *p = pattern;
#ifdef REL_ALLOC
fail_stack_elt_t *failure_stack_ptr;
#endif
boolean path_can_be_null = true;
boolean succeed_n_p = false;
assert (fastmap != NULL && p != NULL);
INIT_FAIL_STACK ();
bzero (fastmap, 1 << BYTEWIDTH);
bufp->fastmap_accurate = 1;
bufp->can_be_null = 0;
while (1)
{
if (p == pend || *p == (UCHAR_T) succeed)
{
if (!FAIL_STACK_EMPTY ())
{
bufp->can_be_null |= path_can_be_null;
path_can_be_null = true;
p = fail_stack.stack[--fail_stack.avail].pointer;
continue;
}
else
break;
}
assert (p < pend);
switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++))
{
case duplicate:
bufp->can_be_null = 1;
goto done;
#ifdef WCHAR
case exactn:
fastmap[truncate_wchar(p[1])] = 1;
break;
#else
case exactn:
fastmap[p[1]] = 1;
break;
#endif
#ifdef MBS_SUPPORT
case exactn_bin:
fastmap[p[1]] = 1;
break;
#endif
#ifdef WCHAR
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)))
fastmap[j] = 1;
break;
case charset_not:
for (j = *p * BYTEWIDTH; j < (1 << BYTEWIDTH); j++)
fastmap[j] = 1;
for (j = *p++ * BYTEWIDTH - 1; j >= 0; j--)
if (!(p[j / BYTEWIDTH] & (1 << (j % BYTEWIDTH))))
fastmap[j] = 1;
break;
case wordchar:
for (j = 0; j < (1 << BYTEWIDTH); j++)
if (SYNTAX (j) == Sword)
fastmap[j] = 1;
break;
case notwordchar:
for (j = 0; j < (1 << BYTEWIDTH); j++)
if (SYNTAX (j) != Sword)
fastmap[j] = 1;
break;
#endif
case anychar:
{
int fastmap_newline = fastmap['\n'];
for (j = 0; j < (1 << BYTEWIDTH); j++)
fastmap[j] = 1;
if (!(bufp->syntax & RE_DOT_NEWLINE))
fastmap['\n'] = fastmap_newline;
else if (bufp->can_be_null)
goto done;
break;
}
#ifdef emacs
case syntaxspec:
k = *p++;
for (j = 0; j < (1 << BYTEWIDTH); j++)
if (SYNTAX (j) == (enum syntaxcode) k)
fastmap[j] = 1;
break;
case notsyntaxspec:
k = *p++;
for (j = 0; j < (1 << BYTEWIDTH); j++)
if (SYNTAX (j) != (enum syntaxcode) k)
fastmap[j] = 1;
break;
case before_dot:
case at_dot:
case after_dot:
continue;
#endif
case no_op:
case begline:
case endline:
case begbuf:
case endbuf:
case wordbound:
case notwordbound:
case wordbeg:
case wordend:
case push_dummy_failure:
continue;
case jump_n:
case pop_failure_jump:
case maybe_pop_jump:
case jump:
case jump_past_alt:
case dummy_failure_jump:
EXTRACT_NUMBER_AND_INCR (j, p);
p += j;
if (j > 0)
continue;
if ((re_opcode_t) *p != on_failure_jump
&& (re_opcode_t) *p != succeed_n)
continue;
p++;
EXTRACT_NUMBER_AND_INCR (j, p);
p += j;
if (!FAIL_STACK_EMPTY ()
&& fail_stack.stack[fail_stack.avail - 1].pointer == p)
fail_stack.avail--;
continue;
case on_failure_jump:
case on_failure_keep_string_jump:
handle_on_failure_jump:
EXTRACT_NUMBER_AND_INCR (j, p);
if (p + j < pend)
{
if (!PUSH_PATTERN_OP (p + j, fail_stack))
{
RESET_FAIL_STACK ();
return -2;
}
}
else
bufp->can_be_null = 1;
if (succeed_n_p)
{
EXTRACT_NUMBER_AND_INCR (k, p);
succeed_n_p = false;
}
continue;
case succeed_n:
p += OFFSET_ADDRESS_SIZE;
EXTRACT_NUMBER_AND_INCR (k, p);
if (k == 0)
{
p -= 2 * OFFSET_ADDRESS_SIZE;
succeed_n_p = true;
goto handle_on_failure_jump;
}
continue;
case set_number_at:
p += 2 * OFFSET_ADDRESS_SIZE;
continue;
case start_memory:
case stop_memory:
p += 2;
continue;
default:
abort ();
}
path_can_be_null = false;
p = pend;
}
bufp->can_be_null |= path_can_be_null;
done:
RESET_FAIL_STACK ();
return 0;
}
#else
int
re_compile_fastmap (bufp)
struct re_pattern_buffer *bufp;
{
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
return wcs_re_compile_fastmap(bufp);
else
# endif
return byte_re_compile_fastmap(bufp);
}
#ifdef _LIBC
weak_alias (__re_compile_fastmap, re_compile_fastmap)
#endif
void
re_set_registers (bufp, regs, num_regs, starts, ends)
struct re_pattern_buffer *bufp;
struct re_registers *regs;
unsigned num_regs;
regoff_t *starts, *ends;
{
if (num_regs)
{
bufp->regs_allocated = REGS_REALLOCATE;
regs->num_regs = num_regs;
regs->start = starts;
regs->end = ends;
}
else
{
bufp->regs_allocated = REGS_UNALLOCATED;
regs->num_regs = 0;
regs->start = regs->end = (regoff_t *) 0;
}
}
#ifdef _LIBC
weak_alias (__re_set_registers, re_set_registers)
#endif
int
re_search (bufp, string, size, startpos, range, regs)
struct re_pattern_buffer *bufp;
const char *string;
int size, startpos, range;
struct re_registers *regs;
{
return re_search_2 (bufp, NULL, 0, string, size, startpos, range,
regs, size);
}
#ifdef _LIBC
weak_alias (__re_search, re_search)
#endif
int
re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop)
struct re_pattern_buffer *bufp;
const char *string1, *string2;
int size1, size2;
int startpos;
int range;
struct re_registers *regs;
int stop;
{
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
return wcs_re_search_2 (bufp, string1, size1, string2, size2, startpos,
range, regs, stop);
else
# endif
return byte_re_search_2 (bufp, string1, size1, string2, size2, startpos,
range, regs, stop);
}
#ifdef _LIBC
weak_alias (__re_search_2, re_search_2)
#endif
#endif
#ifdef INSIDE_RECURSION
#ifdef MATCH_MAY_ALLOCATE
# define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
#else
# define FREE_VAR(var) if (var) free (var); var = NULL
#endif
#ifdef WCHAR
# define MAX_ALLOCA_SIZE 2000
# define FREE_WCS_BUFFERS() \
do { \
if (size1 > MAX_ALLOCA_SIZE) \
{ \
free (wcs_string1); \
free (mbs_offset1); \
} \
else \
{ \
FREE_VAR (wcs_string1); \
FREE_VAR (mbs_offset1); \
} \
if (size2 > MAX_ALLOCA_SIZE) \
{ \
free (wcs_string2); \
free (mbs_offset2); \
} \
else \
{ \
FREE_VAR (wcs_string2); \
FREE_VAR (mbs_offset2); \
} \
} while (0)
#endif
static int
PREFIX(re_search_2) (bufp, string1, size1, string2, size2, startpos, range,
regs, stop)
struct re_pattern_buffer *bufp;
const char *string1, *string2;
int size1, size2;
int startpos;
int range;
struct re_registers *regs;
int stop;
{
int val;
register char *fastmap = bufp->fastmap;
register RE_TRANSLATE_TYPE translate = bufp->translate;
int total_size = size1 + size2;
int endpos = startpos + range;
#ifdef WCHAR
wchar_t *wcs_string1 = NULL, *wcs_string2 = NULL;
int wcs_size1 = 0, wcs_size2 = 0;
int *mbs_offset1 = NULL, *mbs_offset2 = NULL;
char *is_binary = NULL;
#endif
if (startpos < 0 || startpos > total_size)
return -1;
if (endpos < 0)
range = 0 - startpos;
else if (endpos > total_size)
range = total_size - startpos;
if (bufp->used > 0 && range > 0
&& ((re_opcode_t) bufp->buffer[0] == begbuf
|| ((re_opcode_t) bufp->buffer[0] == begline
&& !bufp->newline_anchor)))
{
if (startpos > 0)
return -1;
else
range = 1;
}
#ifdef emacs
if (bufp->used > 0 && (re_opcode_t) bufp->buffer[0] == at_dot && range > 0)
{
range = PT - startpos;
if (range <= 0)
return -1;
}
#endif
if (fastmap && !bufp->fastmap_accurate)
if (re_compile_fastmap (bufp) == -2)
return -2;
#ifdef WCHAR
if (size1 != 0)
{
if (size1 > MAX_ALLOCA_SIZE)
{
wcs_string1 = TALLOC (size1 + 1, CHAR_T);
mbs_offset1 = TALLOC (size1 + 1, int);
is_binary = TALLOC (size1 + 1, char);
}
else
{
wcs_string1 = REGEX_TALLOC (size1 + 1, CHAR_T);
mbs_offset1 = REGEX_TALLOC (size1 + 1, int);
is_binary = REGEX_TALLOC (size1 + 1, char);
}
if (!wcs_string1 || !mbs_offset1 || !is_binary)
{
if (size1 > MAX_ALLOCA_SIZE)
{
free (wcs_string1);
free (mbs_offset1);
free (is_binary);
}
else
{
FREE_VAR (wcs_string1);
FREE_VAR (mbs_offset1);
FREE_VAR (is_binary);
}
return -2;
}
wcs_size1 = convert_mbs_to_wcs(wcs_string1, string1, size1,
mbs_offset1, is_binary);
wcs_string1[wcs_size1] = L'\0';
if (size1 > MAX_ALLOCA_SIZE)
free (is_binary);
else
FREE_VAR (is_binary);
}
if (size2 != 0)
{
if (size2 > MAX_ALLOCA_SIZE)
{
wcs_string2 = TALLOC (size2 + 1, CHAR_T);
mbs_offset2 = TALLOC (size2 + 1, int);
is_binary = TALLOC (size2 + 1, char);
}
else
{
wcs_string2 = REGEX_TALLOC (size2 + 1, CHAR_T);
mbs_offset2 = REGEX_TALLOC (size2 + 1, int);
is_binary = REGEX_TALLOC (size2 + 1, char);
}
if (!wcs_string2 || !mbs_offset2 || !is_binary)
{
FREE_WCS_BUFFERS ();
if (size2 > MAX_ALLOCA_SIZE)
free (is_binary);
else
FREE_VAR (is_binary);
return -2;
}
wcs_size2 = convert_mbs_to_wcs(wcs_string2, string2, size2,
mbs_offset2, is_binary);
wcs_string2[wcs_size2] = L'\0';
if (size2 > MAX_ALLOCA_SIZE)
free (is_binary);
else
FREE_VAR (is_binary);
}
#endif
for (;;)
{
if (fastmap && startpos < total_size && !bufp->can_be_null)
{
if (range > 0)
{
register const char *d;
register int lim = 0;
int irange = range;
if (startpos < size1 && startpos + range >= size1)
lim = range - (size1 - startpos);
d = (startpos >= size1 ? string2 - size1 : string1) + startpos;
if (translate)
while (range > lim
&& !fastmap[(unsigned char)
translate[(unsigned char) *d++]])
range--;
else
while (range > lim && !fastmap[(unsigned char) *d++])
range--;
startpos += irange - range;
}
else
{
register CHAR_T c = (size1 == 0 || startpos >= size1
? string2[startpos - size1]
: string1[startpos]);
if (!fastmap[(unsigned char) TRANSLATE (c)])
goto advance;
}
}
if (range >= 0 && startpos == total_size && fastmap
&& !bufp->can_be_null)
{
#ifdef WCHAR
FREE_WCS_BUFFERS ();
#endif
return -1;
}
#ifdef WCHAR
val = wcs_re_match_2_internal (bufp, string1, size1, string2,
size2, startpos, regs, stop,
wcs_string1, wcs_size1,
wcs_string2, wcs_size2,
mbs_offset1, mbs_offset2);
#else
val = byte_re_match_2_internal (bufp, string1, size1, string2,
size2, startpos, regs, stop);
#endif
#ifndef REGEX_MALLOC
# ifdef C_ALLOCA
alloca (0);
# endif
#endif
if (val >= 0)
{
#ifdef WCHAR
FREE_WCS_BUFFERS ();
#endif
return startpos;
}
if (val == -2)
{
#ifdef WCHAR
FREE_WCS_BUFFERS ();
#endif
return -2;
}
advance:
if (!range)
break;
else if (range > 0)
{
range--;
startpos++;
}
else
{
range++;
startpos--;
}
}
#ifdef WCHAR
FREE_WCS_BUFFERS ();
#endif
return -1;
}
#ifdef WCHAR
# 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
# define POINTER_TO_OFFSET(ptr) \
(FIRST_STRING_P (ptr) \
? ((regoff_t) ((ptr) - string1)) \
: ((regoff_t) ((ptr) - string2 + size1)))
#endif
#define MATCHING_IN_FIRST_STRING (dend == end_match_1)
#define PREFETCH() \
while (d == dend) \
{ \
\
if (dend == end_match_2) \
goto fail; \
\
d = string2; \
dend = end_match_2; \
}
#define AT_STRINGS_BEG(d) ((d) == (size1 ? string1 : string2) || !size2)
#define AT_STRINGS_END(d) ((d) == end2)
#ifdef WCHAR
# define WORDCHAR_P(d) \
(iswalnum ((wint_t)((d) == end1 ? *string2 \
: (d) == string2 - 1 ? *(end1 - 1) : *(d))) != 0 \
|| ((d) == end1 ? *string2 \
: (d) == string2 - 1 ? *(end1 - 1) : *(d)) == L'_')
#else
# define WORDCHAR_P(d) \
(SYNTAX ((d) == end1 ? *string2 \
: (d) == string2 - 1 ? *(end1 - 1) : *(d)) \
== Sword)
#endif
#if 0
#define AT_WORD_BOUNDARY(d) \
(AT_STRINGS_BEG (d) || AT_STRINGS_END (d) \
|| WORDCHAR_P (d - 1) != WORDCHAR_P (d))
#endif
#ifdef MATCH_MAY_ALLOCATE
# ifdef WCHAR
# 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); \
if (!cant_free_wcs_buf) \
{ \
FREE_VAR (string1); \
FREE_VAR (string2); \
FREE_VAR (mbs_offset1); \
FREE_VAR (mbs_offset2); \
} \
} while (0)
# else
# 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); \
} while (0)
# endif
#else
# ifdef WCHAR
# define FREE_VARIABLES() \
do { \
if (!cant_free_wcs_buf) \
{ \
FREE_VAR (string1); \
FREE_VAR (string2); \
FREE_VAR (mbs_offset1); \
FREE_VAR (mbs_offset2); \
} \
} while (0)
# else
# define FREE_VARIABLES() ((void)0)
# endif
#endif
#define NO_HIGHEST_ACTIVE_REG (1 << BYTEWIDTH)
#define NO_LOWEST_ACTIVE_REG (NO_HIGHEST_ACTIVE_REG + 1)
#else
#ifndef emacs
int
re_match (bufp, string, size, pos, regs)
struct re_pattern_buffer *bufp;
const char *string;
int size, pos;
struct re_registers *regs;
{
int result;
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
result = wcs_re_match_2_internal (bufp, NULL, 0, string, size,
pos, regs, size,
NULL, 0, NULL, 0, NULL, NULL);
else
# endif
result = byte_re_match_2_internal (bufp, NULL, 0, string, size,
pos, regs, size);
# ifndef REGEX_MALLOC
# ifdef C_ALLOCA
alloca (0);
# endif
# endif
return result;
}
# ifdef _LIBC
weak_alias (__re_match, re_match)
# endif
#endif
#endif
#ifdef INSIDE_RECURSION
static boolean PREFIX(group_match_null_string_p) _RE_ARGS ((UCHAR_T **p,
UCHAR_T *end,
PREFIX(register_info_type) *reg_info));
static boolean PREFIX(alt_match_null_string_p) _RE_ARGS ((UCHAR_T *p,
UCHAR_T *end,
PREFIX(register_info_type) *reg_info));
static boolean PREFIX(common_op_match_null_string_p) _RE_ARGS ((UCHAR_T **p,
UCHAR_T *end,
PREFIX(register_info_type) *reg_info));
static int PREFIX(bcmp_translate) _RE_ARGS ((const CHAR_T *s1, const CHAR_T *s2,
int len, char *translate));
#else
int
re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop)
struct re_pattern_buffer *bufp;
const char *string1, *string2;
int size1, size2;
int pos;
struct re_registers *regs;
int stop;
{
int result;
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
result = wcs_re_match_2_internal (bufp, string1, size1, string2, size2,
pos, regs, stop,
NULL, 0, NULL, 0, NULL, NULL);
else
# endif
result = byte_re_match_2_internal (bufp, string1, size1, string2, size2,
pos, regs, stop);
#ifndef REGEX_MALLOC
# ifdef C_ALLOCA
alloca (0);
# endif
#endif
return result;
}
#ifdef _LIBC
weak_alias (__re_match_2, re_match_2)
#endif
#endif
#ifdef INSIDE_RECURSION
#ifdef WCHAR
static int count_mbs_length PARAMS ((int *, int));
static int
count_mbs_length(offset_buffer, length)
int *offset_buffer;
int length;
{
int upper, lower;
if (length < 0)
return -1;
if (offset_buffer == NULL)
return 0;
if (offset_buffer[length] == length)
return length;
upper = length;
lower = 0;
while (true)
{
int middle = (lower + upper) / 2;
if (middle == lower || middle == upper)
break;
if (offset_buffer[middle] > length)
upper = middle;
else if (offset_buffer[middle] < length)
lower = middle;
else
return middle;
}
return -1;
}
#endif
#ifdef WCHAR
static int
wcs_re_match_2_internal (bufp, cstring1, csize1, cstring2, csize2, pos,
regs, stop, string1, size1, string2, size2,
mbs_offset1, mbs_offset2)
struct re_pattern_buffer *bufp;
const char *cstring1, *cstring2;
int csize1, csize2;
int pos;
struct re_registers *regs;
int stop;
wchar_t *string1, *string2;
int size1, size2;
int *mbs_offset1, *mbs_offset2;
#else
static int
byte_re_match_2_internal (bufp, string1, size1,string2, size2, pos,
regs, stop)
struct re_pattern_buffer *bufp;
const char *string1, *string2;
int size1, size2;
int pos;
struct re_registers *regs;
int stop;
#endif
{
int mcnt;
UCHAR_T *p1;
#ifdef WCHAR
char *is_binary = NULL;
int cant_free_wcs_buf = 1;
#endif
const CHAR_T *end1, *end2;
const CHAR_T *end_match_1, *end_match_2;
const CHAR_T *d, *dend;
#ifdef WCHAR
UCHAR_T *pattern, *p;
register UCHAR_T *pend;
#else
UCHAR_T *p = bufp->buffer;
register UCHAR_T *pend = p + bufp->used;
#endif
UCHAR_T *just_past_start_mem = 0;
RE_TRANSLATE_TYPE translate = bufp->translate;
#ifdef MATCH_MAY_ALLOCATE
PREFIX(fail_stack_type) fail_stack;
#endif
#ifdef DEBUG
static unsigned failure_id;
unsigned nfailure_points_pushed = 0, nfailure_points_popped = 0;
#endif
#ifdef REL_ALLOC
fail_stack_elt_t *failure_stack_ptr;
#endif
size_t num_regs = bufp->re_nsub + 1;
active_reg_t lowest_active_reg = NO_LOWEST_ACTIVE_REG;
active_reg_t highest_active_reg = NO_HIGHEST_ACTIVE_REG;
#ifdef MATCH_MAY_ALLOCATE
const CHAR_T **regstart, **regend;
#endif
#ifdef MATCH_MAY_ALLOCATE
const CHAR_T **old_regstart, **old_regend;
#endif
#ifdef MATCH_MAY_ALLOCATE
PREFIX(register_info_type) *reg_info;
#endif
unsigned best_regs_set = false;
#ifdef MATCH_MAY_ALLOCATE
const CHAR_T **best_regstart, **best_regend;
#endif
const CHAR_T *match_end = NULL;
int set_regs_matched_done = 0;
#ifdef MATCH_MAY_ALLOCATE
const CHAR_T **reg_dummy;
PREFIX(register_info_type) *reg_info_dummy;
#endif
#ifdef DEBUG
unsigned num_regs_pushed = 0;
#endif
DEBUG_PRINT1 ("\n\nEntering re_match_2.\n");
INIT_FAIL_STACK ();
#ifdef MATCH_MAY_ALLOCATE
if (bufp->re_nsub)
{
regstart = REGEX_TALLOC (num_regs, const CHAR_T *);
regend = REGEX_TALLOC (num_regs, const CHAR_T *);
old_regstart = REGEX_TALLOC (num_regs, const CHAR_T *);
old_regend = REGEX_TALLOC (num_regs, const CHAR_T *);
best_regstart = REGEX_TALLOC (num_regs, const CHAR_T *);
best_regend = REGEX_TALLOC (num_regs, const CHAR_T *);
reg_info = REGEX_TALLOC (num_regs, PREFIX(register_info_type));
reg_dummy = REGEX_TALLOC (num_regs, const CHAR_T *);
reg_info_dummy = REGEX_TALLOC (num_regs, PREFIX(register_info_type));
if (!(regstart && regend && old_regstart && old_regend && reg_info
&& best_regstart && best_regend && reg_dummy && reg_info_dummy))
{
FREE_VARIABLES ();
return -2;
}
}
else
{
regstart = regend = old_regstart = old_regend = best_regstart
= best_regend = reg_dummy = NULL;
reg_info = reg_info_dummy = (PREFIX(register_info_type) *) NULL;
}
#endif
#ifdef WCHAR
if (pos < 0 || pos > csize1 + csize2)
#else
if (pos < 0 || pos > size1 + size2)
#endif
{
FREE_VARIABLES ();
return -1;
}
#ifdef WCHAR
if (string1 == NULL && string2 == NULL)
{
cant_free_wcs_buf = 0;
if (csize1 != 0)
{
string1 = REGEX_TALLOC (csize1 + 1, CHAR_T);
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;
}
}
if (csize2 != 0)
{
string2 = REGEX_TALLOC (csize2 + 1, CHAR_T);
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';
FREE_VAR (is_binary);
}
}
p = pattern = (CHAR_T*)bufp->buffer;
pend = (CHAR_T*)(bufp->buffer + bufp->used);
#endif
for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++)
{
regstart[mcnt] = regend[mcnt]
= old_regstart[mcnt] = old_regend[mcnt] = REG_UNSET_VALUE;
REG_MATCH_NULL_STRING_P (reg_info[mcnt]) = MATCH_NULL_UNSET_VALUE;
IS_ACTIVE (reg_info[mcnt]) = 0;
MATCHED_SOMETHING (reg_info[mcnt]) = 0;
EVER_MATCHED_SOMETHING (reg_info[mcnt]) = 0;
}
if (size2 == 0 && string1 != NULL)
{
string2 = string1;
size2 = size1;
string1 = 0;
size1 = 0;
#ifdef WCHAR
mbs_offset2 = mbs_offset1;
csize2 = csize1;
mbs_offset1 = NULL;
csize1 = 0;
#endif
}
end1 = string1 + size1;
end2 = string2 + size2;
#ifdef WCHAR
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)
{
FREE_VARIABLES ();
return -1;
}
#else
if (stop <= size1)
{
end_match_1 = string1 + stop;
end_match_2 = string2;
}
else
{
end_match_1 = end1;
end_match_2 = string2 + stop - size1;
}
#endif
#ifdef WCHAR
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)
{
FREE_VARIABLES ();
return -1;
}
#else
if (size1 > 0 && pos <= size1)
{
d = string1 + pos;
dend = end_match_1;
}
else
{
d = string2 + pos - size1;
dend = end_match_2;
}
#endif
DEBUG_PRINT1 ("The compiled pattern is:\n");
DEBUG_PRINT_COMPILED_PATTERN (bufp, p, pend);
DEBUG_PRINT1 ("The string to match is: `");
DEBUG_PRINT_DOUBLE_STRING (d, string1, size1, string2, size2);
DEBUG_PRINT1 ("'\n");
for (;;)
{
#ifdef _LIBC
DEBUG_PRINT2 ("\n%p: ", p);
#else
DEBUG_PRINT2 ("\n0x%x: ", p);
#endif
if (p == pend)
{
DEBUG_PRINT1 ("end of pattern ... ");
if (d != end_match_2)
{
boolean same_str_p = (FIRST_STRING_P (match_end)
== MATCHING_IN_FIRST_STRING);
boolean best_match_p;
if (same_str_p)
best_match_p = d > match_end;
else
best_match_p = !MATCHING_IN_FIRST_STRING;
DEBUG_PRINT1 ("backtracking.\n");
if (!FAIL_STACK_EMPTY ())
{
if (!best_regs_set || best_match_p)
{
best_regs_set = true;
match_end = d;
DEBUG_PRINT1 ("\nSAVING match as best so far.\n");
for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++)
{
best_regstart[mcnt] = regstart[mcnt];
best_regend[mcnt] = regend[mcnt];
}
}
goto fail;
}
else if (best_regs_set && !best_match_p)
{
restore_best_regs:
DEBUG_PRINT1 ("Restoring best registers.\n");
d = match_end;
dend = ((d >= string1 && d <= end1)
? end_match_1 : end_match_2);
for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++)
{
regstart[mcnt] = best_regstart[mcnt];
regend[mcnt] = best_regend[mcnt];
}
}
}
succeed_label:
DEBUG_PRINT1 ("Accepting match.\n");
if (regs && !bufp->no_sub)
{
if (bufp->regs_allocated == REGS_UNALLOCATED)
{
regs->num_regs = MAX (RE_NREGS, num_regs + 1);
regs->start = TALLOC (regs->num_regs, regoff_t);
regs->end = TALLOC (regs->num_regs, regoff_t);
if (regs->start == NULL || regs->end == NULL)
{
FREE_VARIABLES ();
return -2;
}
bufp->regs_allocated = REGS_REALLOCATE;
}
else if (bufp->regs_allocated == REGS_REALLOCATE)
{
if (regs->num_regs < num_regs + 1)
{
regs->num_regs = num_regs + 1;
RETALLOC (regs->start, regs->num_regs, regoff_t);
RETALLOC (regs->end, regs->num_regs, regoff_t);
if (regs->start == NULL || regs->end == NULL)
{
FREE_VARIABLES ();
return -2;
}
}
}
else
{
assert (bufp->regs_allocated == REGS_FIXED);
}
if (regs->num_regs > 0)
{
regs->start[0] = pos;
#ifdef WCHAR
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
}
for (mcnt = 1; (unsigned) mcnt < MIN (num_regs, regs->num_regs);
mcnt++)
{
if (REG_UNSET (regstart[mcnt]) || REG_UNSET (regend[mcnt]))
regs->start[mcnt] = regs->end[mcnt] = -1;
else
{
regs->start[mcnt]
= (regoff_t) POINTER_TO_OFFSET (regstart[mcnt]);
regs->end[mcnt]
= (regoff_t) POINTER_TO_OFFSET (regend[mcnt]);
}
}
for (mcnt = num_regs; (unsigned) mcnt < regs->num_regs; mcnt++)
regs->start[mcnt] = regs->end[mcnt] = -1;
}
DEBUG_PRINT4 ("%u failure points pushed, %u popped (%u remain).\n",
nfailure_points_pushed, nfailure_points_popped,
nfailure_points_pushed - nfailure_points_popped);
DEBUG_PRINT2 ("%u registers pushed.\n", num_regs_pushed);
#ifdef WCHAR
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
DEBUG_PRINT2 ("Returning %d from re_match_2.\n", mcnt);
FREE_VARIABLES ();
return mcnt;
}
switch (SWITCH_ENUM_CAST ((re_opcode_t) *p++))
{
case no_op:
DEBUG_PRINT1 ("EXECUTING no_op.\n");
break;
case succeed:
DEBUG_PRINT1 ("EXECUTING succeed.\n");
goto succeed_label;
case exactn:
#ifdef MBS_SUPPORT
case exactn_bin:
#endif
mcnt = *p++;
DEBUG_PRINT2 ("EXECUTING exactn %d.\n", mcnt);
if (translate)
{
do
{
PREFETCH ();
#ifdef WCHAR
if (*d <= 0xff)
{
if ((UCHAR_T) translate[(unsigned char) *d++]
!= (UCHAR_T) *p++)
goto fail;
}
else
{
if (*d++ != (CHAR_T) *p++)
goto fail;
}
#else
if ((UCHAR_T) translate[(unsigned char) *d++]
!= (UCHAR_T) *p++)
goto fail;
#endif
}
while (--mcnt);
}
else
{
do
{
PREFETCH ();
if (*d++ != (CHAR_T) *p++) goto fail;
}
while (--mcnt);
}
SET_REGS_MATCHED ();
break;
case anychar:
DEBUG_PRINT1 ("EXECUTING anychar.\n");
PREFETCH ();
if ((!(bufp->syntax & RE_DOT_NEWLINE) && TRANSLATE (*d) == '\n')
|| (bufp->syntax & RE_DOT_NOT_NULL && TRANSLATE (*d) == '\000'))
goto fail;
SET_REGS_MATCHED ();
DEBUG_PRINT2 (" Matched `%ld'.\n", (long int) *d);
d++;
break;
case charset:
case charset_not:
{
register UCHAR_T c;
#ifdef WCHAR
unsigned int i, char_class_length, coll_symbol_length,
equiv_class_length, ranges_length, chars_length, length;
CHAR_T *workp, *workp2, *charset_top;
#define WORK_BUFFER_SIZE 128
CHAR_T str_buf[WORK_BUFFER_SIZE];
# ifdef _LIBC
uint32_t nrules;
# endif
#endif
boolean not = (re_opcode_t) *(p - 1) == charset_not;
DEBUG_PRINT2 ("EXECUTING charset%s.\n", not ? "_not" : "");
PREFETCH ();
c = TRANSLATE (*d);
#ifdef WCHAR
# ifdef _LIBC
nrules = _NL_CURRENT_WORD (LC_COLLATE, _NL_COLLATE_NRULES);
# endif
charset_top = p - 1;
char_class_length = *p++;
coll_symbol_length = *p++;
equiv_class_length = *p++;
ranges_length = *p++;
chars_length = *p++;
workp = p;
p += char_class_length + coll_symbol_length+ equiv_class_length +
2*ranges_length + chars_length;
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;
# ifdef _LIBC
if (__iswctype((wint_t)c, wctype))
goto char_set_matched;
# else
if (iswctype((wint_t)c, wctype))
goto char_set_matched;
# endif
}
# 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)
{
d += i - 1;
goto char_set_matched;
}
}
}
else
# endif
{
for (workp2 = workp + coll_symbol_length ; workp < workp2 ;)
{
const CHAR_T *backup_d = d, *backup_dend = dend;
# ifdef _LIBC
length = __wcslen (workp);
# else
length = wcslen (workp);
# endif
# ifdef _LIBC
if (__wcscoll (workp, d) > 0)
# else
if (wcscoll (workp, d) > 0)
# endif
{
workp += length + 1;
continue;
}
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;
}
str_buf[i] = TRANSLATE(*d);
str_buf[i+1] = '\0';
# ifdef _LIBC
match = __wcscoll (workp, str_buf);
# else
match = wcscoll (workp, str_buf);
# endif
if (match == 0)
goto char_set_matched;
if (match < 0)
break;
}
d = backup_d;
dend = backup_dend;
workp += length + 1;
}
}
# ifdef _LIBC
if (nrules != 0)
{
const CHAR_T *backup_d = d, *backup_dend = dend;
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;
# 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);
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';
idx2 = findidx ((const wint_t**)&cp);
}
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;
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;
}
}
d = backup_d;
dend = backup_dend;
}
else
# endif
{
for (workp2 = workp + equiv_class_length ; workp < workp2 ;)
{
const CHAR_T *backup_d = d, *backup_dend = dend;
# ifdef _LIBC
length = __wcslen (workp);
# else
length = wcslen (workp);
# endif
# ifdef _LIBC
if (__wcscoll (workp, d) > 0)
# else
if (wcscoll (workp, d) > 0)
# endif
{
workp += length + 1;
break;
}
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;
}
str_buf[i] = TRANSLATE(*d);
str_buf[i+1] = '\0';
# ifdef _LIBC
match = __wcscoll (workp, str_buf);
# else
match = wcscoll (workp, str_buf);
# endif
if (match == 0)
goto char_set_matched;
if (match < 0)
break;
}
d = backup_d;
dend = backup_dend;
workp += length + 1;
}
}
# 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;
start_val = (uint32_t) *workp++;
end_val = (uint32_t) *workp++;
if (start_val <= collseqval && collseqval <= end_val)
goto char_set_matched;
}
}
else
# endif
{
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;
if (*workp < 0)
range_start_char = charset_top - (*workp++);
else
{
str_buf[0] = *workp++;
range_start_char = str_buf;
}
if (*workp < 0)
range_end_char = charset_top - (*workp++);
else
{
str_buf[4] = *workp++;
range_end_char = str_buf + 4;
}
# ifdef _LIBC
if (__wcscoll (range_start_char, str_buf+2) <= 0
&& __wcscoll (str_buf+2, range_end_char) <= 0)
# else
if (wcscoll (range_start_char, str_buf+2) <= 0
&& wcscoll (str_buf+2, range_end_char) <= 0)
# endif
goto char_set_matched;
}
}
for (; workp < p ; workp++)
if (c == *workp)
goto char_set_matched;
not = !not;
char_set_matched:
if (not) goto fail;
#else
if (c < (unsigned) (*p * BYTEWIDTH)
&& p[1 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
not = !not;
p += 1 + *p;
if (!not) goto fail;
#undef WORK_BUFFER_SIZE
#endif
SET_REGS_MATCHED ();
d++;
break;
}
case start_memory:
DEBUG_PRINT3 ("EXECUTING start_memory %ld (%ld):\n",
(long int) *p, (long int) p[1]);
p1 = p;
if (REG_MATCH_NULL_STRING_P (reg_info[*p]) == MATCH_NULL_UNSET_VALUE)
REG_MATCH_NULL_STRING_P (reg_info[*p])
= PREFIX(group_match_null_string_p) (&p1, pend, reg_info);
old_regstart[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p])
? REG_UNSET (regstart[*p]) ? d : regstart[*p]
: regstart[*p];
DEBUG_PRINT2 (" old_regstart: %d\n",
POINTER_TO_OFFSET (old_regstart[*p]));
regstart[*p] = d;
DEBUG_PRINT2 (" regstart: %d\n", POINTER_TO_OFFSET (regstart[*p]));
IS_ACTIVE (reg_info[*p]) = 1;
MATCHED_SOMETHING (reg_info[*p]) = 0;
set_regs_matched_done = 0;
highest_active_reg = *p;
if (lowest_active_reg == NO_LOWEST_ACTIVE_REG)
lowest_active_reg = *p;
p += 2;
just_past_start_mem = p;
break;
case stop_memory:
DEBUG_PRINT3 ("EXECUTING stop_memory %ld (%ld):\n",
(long int) *p, (long int) p[1]);
old_regend[*p] = REG_MATCH_NULL_STRING_P (reg_info[*p])
? REG_UNSET (regend[*p]) ? d : regend[*p]
: regend[*p];
DEBUG_PRINT2 (" old_regend: %d\n",
POINTER_TO_OFFSET (old_regend[*p]));
regend[*p] = d;
DEBUG_PRINT2 (" regend: %d\n", POINTER_TO_OFFSET (regend[*p]));
IS_ACTIVE (reg_info[*p]) = 0;
set_regs_matched_done = 0;
if (lowest_active_reg == highest_active_reg)
{
lowest_active_reg = NO_LOWEST_ACTIVE_REG;
highest_active_reg = NO_HIGHEST_ACTIVE_REG;
}
else
{
UCHAR_T r = *p - 1;
while (r > 0 && !IS_ACTIVE (reg_info[r]))
r--;
if (r == 0)
{
lowest_active_reg = NO_LOWEST_ACTIVE_REG;
highest_active_reg = NO_HIGHEST_ACTIVE_REG;
}
else
highest_active_reg = r;
}
if ((!MATCHED_SOMETHING (reg_info[*p])
|| just_past_start_mem == p - 1)
&& (p + 2) < pend)
{
boolean is_a_jump_n = false;
p1 = p + 2;
mcnt = 0;
switch ((re_opcode_t) *p1++)
{
case jump_n:
is_a_jump_n = true;
case pop_failure_jump:
case maybe_pop_jump:
case jump:
case dummy_failure_jump:
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if (is_a_jump_n)
p1 += OFFSET_ADDRESS_SIZE;
break;
default:
;
}
p1 += mcnt;
if (mcnt < 0 && (re_opcode_t) *p1 == on_failure_jump
&& (re_opcode_t) p1[1+OFFSET_ADDRESS_SIZE] == start_memory
&& p1[2+OFFSET_ADDRESS_SIZE] == *p)
{
if (EVER_MATCHED_SOMETHING (reg_info[*p]))
{
unsigned r;
EVER_MATCHED_SOMETHING (reg_info[*p]) = 0;
for (r = *p; r < (unsigned) *p + (unsigned) *(p + 1);
r++)
{
regstart[r] = old_regstart[r];
if (old_regend[r] >= regstart[r])
regend[r] = old_regend[r];
}
}
p1++;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
PUSH_FAILURE_POINT (p1 + mcnt, d, -2);
goto fail;
}
}
p += 2;
break;
case duplicate:
{
register const CHAR_T *d2, *dend2;
int regno = *p++;
DEBUG_PRINT2 ("EXECUTING duplicate %d.\n", regno);
if (REG_UNSET (regstart[regno]) || REG_UNSET (regend[regno]))
goto fail;
d2 = regstart[regno];
dend2 = ((FIRST_STRING_P (regstart[regno])
== FIRST_STRING_P (regend[regno]))
? regend[regno] : end_match_1);
for (;;)
{
while (d2 == dend2)
{
if (dend2 == end_match_2) break;
if (dend2 == regend[regno]) break;
d2 = string2;
dend2 = regend[regno];
}
if (d2 == dend2) break;
PREFETCH ();
mcnt = dend - d;
if (mcnt > dend2 - d2)
mcnt = dend2 - d2;
if (translate
? PREFIX(bcmp_translate) (d, d2, mcnt, translate)
: memcmp (d, d2, mcnt*sizeof(UCHAR_T)))
goto fail;
d += mcnt, d2 += mcnt;
SET_REGS_MATCHED ();
}
}
break;
case begline:
DEBUG_PRINT1 ("EXECUTING begline.\n");
if (AT_STRINGS_BEG (d))
{
if (!bufp->not_bol) break;
}
else if (d[-1] == '\n' && bufp->newline_anchor)
{
break;
}
goto fail;
case endline:
DEBUG_PRINT1 ("EXECUTING endline.\n");
if (AT_STRINGS_END (d))
{
if (!bufp->not_eol) break;
}
else if ((d == end1 ? *string2 : *d) == '\n'
&& bufp->newline_anchor)
{
break;
}
goto fail;
case begbuf:
DEBUG_PRINT1 ("EXECUTING begbuf.\n");
if (AT_STRINGS_BEG (d))
break;
goto fail;
case endbuf:
DEBUG_PRINT1 ("EXECUTING endbuf.\n");
if (AT_STRINGS_END (d))
break;
goto fail;
case on_failure_keep_string_jump:
DEBUG_PRINT1 ("EXECUTING on_failure_keep_string_jump");
EXTRACT_NUMBER_AND_INCR (mcnt, p);
#ifdef _LIBC
DEBUG_PRINT3 (" %d (to %p):\n", mcnt, p + mcnt);
#else
DEBUG_PRINT3 (" %d (to 0x%x):\n", mcnt, p + mcnt);
#endif
PUSH_FAILURE_POINT (p + mcnt, NULL, -2);
break;
case on_failure_jump:
on_failure:
DEBUG_PRINT1 ("EXECUTING on_failure_jump");
EXTRACT_NUMBER_AND_INCR (mcnt, p);
#ifdef _LIBC
DEBUG_PRINT3 (" %d (to %p)", mcnt, p + mcnt);
#else
DEBUG_PRINT3 (" %d (to 0x%x)", mcnt, p + mcnt);
#endif
p1 = p;
while (p1 < pend && (re_opcode_t) *p1 == no_op)
p1++;
if (p1 < pend && (re_opcode_t) *p1 == start_memory)
{
highest_active_reg = *(p1 + 1) + *(p1 + 2);
if (lowest_active_reg == NO_LOWEST_ACTIVE_REG)
lowest_active_reg = *(p1 + 1);
}
DEBUG_PRINT1 (":\n");
PUSH_FAILURE_POINT (p + mcnt, d, -2);
break;
case maybe_pop_jump:
EXTRACT_NUMBER_AND_INCR (mcnt, p);
DEBUG_PRINT2 ("EXECUTING maybe_pop_jump %d.\n", mcnt);
{
register UCHAR_T *p2 = p;
while (1)
{
if (p2 + 2 < pend
&& ((re_opcode_t) *p2 == stop_memory
|| (re_opcode_t) *p2 == start_memory))
p2 += 3;
else if (p2 + 2 + 2 * OFFSET_ADDRESS_SIZE < pend
&& (re_opcode_t) *p2 == dummy_failure_jump)
p2 += 2 + 2 * OFFSET_ADDRESS_SIZE;
else
break;
}
p1 = p + mcnt;
if (p2 == pend)
{
p[-(1+OFFSET_ADDRESS_SIZE)] = (UCHAR_T)
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 UCHAR_T c
= *p2 == (UCHAR_T) endline ? '\n' : p2[2];
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[-(1+OFFSET_ADDRESS_SIZE)] = (UCHAR_T)
pop_failure_jump;
#ifdef WCHAR
DEBUG_PRINT3 (" %C != %C => pop_failure_jump.\n",
(wint_t) c,
(wint_t) p1[3+OFFSET_ADDRESS_SIZE]);
#else
DEBUG_PRINT3 (" %c != %c => pop_failure_jump.\n",
(char) c,
(char) p1[3+OFFSET_ADDRESS_SIZE]);
#endif
}
#ifndef WCHAR
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) (p1[4] * BYTEWIDTH)
&& p1[5 + c / BYTEWIDTH] & (1 << (c % BYTEWIDTH)))
not = !not;
if (!not)
{
p[-3] = (unsigned char) pop_failure_jump;
DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
}
}
#endif
}
#ifndef WCHAR
else if ((re_opcode_t) *p2 == charset)
{
if ((re_opcode_t) p1[3] == exactn
&& ! ((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)
{
int idx;
for (idx = 0; idx < (int) p2[1]; idx++)
if (! (p2[2 + idx] == 0
|| (idx < (int) p1[4]
&& ((p2[2 + idx] & ~ p1[5 + idx]) == 0))))
break;
if (idx == p2[1])
{
p[-3] = (unsigned char) pop_failure_jump;
DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
}
}
else if ((re_opcode_t) p1[3] == charset)
{
int idx;
for (idx = 0;
idx < (int) p2[1] && idx < (int) p1[4];
idx++)
if ((p2[2 + idx] & p1[5 + idx]) != 0)
break;
if (idx == p2[1] || idx == p1[4])
{
p[-3] = (unsigned char) pop_failure_jump;
DEBUG_PRINT1 (" No match => pop_failure_jump.\n");
}
}
}
#endif
}
p -= OFFSET_ADDRESS_SIZE;
if ((re_opcode_t) p[-1] != pop_failure_jump)
{
p[-1] = (UCHAR_T) jump;
DEBUG_PRINT1 (" Match => jump.\n");
goto unconditional_jump;
}
case pop_failure_jump:
{
active_reg_t dummy_low_reg, dummy_high_reg;
UCHAR_T *pdummy = NULL;
const CHAR_T *sdummy = NULL;
DEBUG_PRINT1 ("EXECUTING pop_failure_jump.\n");
POP_FAILURE_POINT (sdummy, pdummy,
dummy_low_reg, dummy_high_reg,
reg_dummy, reg_dummy, reg_info_dummy);
}
unconditional_jump:
#ifdef _LIBC
DEBUG_PRINT2 ("\n%p: ", p);
#else
DEBUG_PRINT2 ("\n0x%x: ", p);
#endif
case jump:
EXTRACT_NUMBER_AND_INCR (mcnt, p);
DEBUG_PRINT2 ("EXECUTING jump %d ", mcnt);
p += mcnt;
#ifdef _LIBC
DEBUG_PRINT2 ("(to %p).\n", p);
#else
DEBUG_PRINT2 ("(to 0x%x).\n", p);
#endif
break;
case jump_past_alt:
DEBUG_PRINT1 ("EXECUTING jump_past_alt.\n");
goto unconditional_jump;
case dummy_failure_jump:
DEBUG_PRINT1 ("EXECUTING dummy_failure_jump.\n");
PUSH_FAILURE_POINT (NULL, NULL, -2);
goto unconditional_jump;
case push_dummy_failure:
DEBUG_PRINT1 ("EXECUTING push_dummy_failure.\n");
PUSH_FAILURE_POINT (NULL, NULL, -2);
break;
case succeed_n:
EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE);
DEBUG_PRINT2 ("EXECUTING succeed_n %d.\n", mcnt);
assert (mcnt >= 0);
if (mcnt > 0)
{
mcnt--;
p += OFFSET_ADDRESS_SIZE;
STORE_NUMBER_AND_INCR (p, mcnt);
#ifdef _LIBC
DEBUG_PRINT3 (" Setting %p to %d.\n", p - OFFSET_ADDRESS_SIZE
, mcnt);
#else
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 + OFFSET_ADDRESS_SIZE);
#else
DEBUG_PRINT2 (" Setting two bytes from 0x%x to no_op.\n",
p + OFFSET_ADDRESS_SIZE);
#endif
#ifdef WCHAR
p[1] = (UCHAR_T) no_op;
#else
p[2] = (UCHAR_T) no_op;
p[3] = (UCHAR_T) no_op;
#endif
goto on_failure;
}
break;
case jump_n:
EXTRACT_NUMBER (mcnt, p + OFFSET_ADDRESS_SIZE);
DEBUG_PRINT2 ("EXECUTING jump_n %d.\n", mcnt);
if (mcnt)
{
mcnt--;
STORE_NUMBER (p + OFFSET_ADDRESS_SIZE, mcnt);
#ifdef _LIBC
DEBUG_PRINT3 (" Setting %p to %d.\n", p + OFFSET_ADDRESS_SIZE,
mcnt);
#else
DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p + OFFSET_ADDRESS_SIZE,
mcnt);
#endif
goto unconditional_jump;
}
else
p += 2 * OFFSET_ADDRESS_SIZE;
break;
case set_number_at:
{
DEBUG_PRINT1 ("EXECUTING set_number_at.\n");
EXTRACT_NUMBER_AND_INCR (mcnt, p);
p1 = p + mcnt;
EXTRACT_NUMBER_AND_INCR (mcnt, p);
#ifdef _LIBC
DEBUG_PRINT3 (" Setting %p to %d.\n", p1, mcnt);
#else
DEBUG_PRINT3 (" Setting 0x%x to %d.\n", p1, mcnt);
#endif
STORE_NUMBER (p1, mcnt);
break;
}
#if 0
case wordbound:
DEBUG_PRINT1 ("EXECUTING wordbound.\n");
if (AT_WORD_BOUNDARY (d))
break;
goto fail;
case notwordbound:
DEBUG_PRINT1 ("EXECUTING notwordbound.\n");
if (AT_WORD_BOUNDARY (d))
goto fail;
break;
#else
case wordbound:
{
boolean prevchar, thischar;
DEBUG_PRINT1 ("EXECUTING wordbound.\n");
if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d))
break;
prevchar = WORDCHAR_P (d - 1);
thischar = WORDCHAR_P (d);
if (prevchar != thischar)
break;
goto fail;
}
case notwordbound:
{
boolean prevchar, thischar;
DEBUG_PRINT1 ("EXECUTING notwordbound.\n");
if (AT_STRINGS_BEG (d) || AT_STRINGS_END (d))
goto fail;
prevchar = WORDCHAR_P (d - 1);
thischar = WORDCHAR_P (d);
if (prevchar != thischar)
goto fail;
break;
}
#endif
case wordbeg:
DEBUG_PRINT1 ("EXECUTING wordbeg.\n");
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)
&& (AT_STRINGS_END (d) || !WORDCHAR_P (d)))
break;
goto fail;
#ifdef emacs
case before_dot:
DEBUG_PRINT1 ("EXECUTING before_dot.\n");
if (PTR_CHAR_POS ((unsigned char *) d) >= point)
goto fail;
break;
case at_dot:
DEBUG_PRINT1 ("EXECUTING at_dot.\n");
if (PTR_CHAR_POS ((unsigned char *) d) != point)
goto fail;
break;
case after_dot:
DEBUG_PRINT1 ("EXECUTING after_dot.\n");
if (PTR_CHAR_POS ((unsigned char *) d) <= point)
goto fail;
break;
case syntaxspec:
DEBUG_PRINT2 ("EXECUTING syntaxspec %d.\n", mcnt);
mcnt = *p++;
goto matchsyntax;
case wordchar:
DEBUG_PRINT1 ("EXECUTING Emacs wordchar.\n");
mcnt = (int) Sword;
matchsyntax:
PREFETCH ();
d++;
if (SYNTAX (d[-1]) != (enum syntaxcode) mcnt)
goto fail;
SET_REGS_MATCHED ();
break;
case notsyntaxspec:
DEBUG_PRINT2 ("EXECUTING notsyntaxspec %d.\n", mcnt);
mcnt = *p++;
goto matchnotsyntax;
case notwordchar:
DEBUG_PRINT1 ("EXECUTING Emacs notwordchar.\n");
mcnt = (int) Sword;
matchnotsyntax:
PREFETCH ();
d++;
if (SYNTAX (d[-1]) == (enum syntaxcode) mcnt)
goto fail;
SET_REGS_MATCHED ();
break;
#else
case wordchar:
DEBUG_PRINT1 ("EXECUTING non-Emacs wordchar.\n");
PREFETCH ();
if (!WORDCHAR_P (d))
goto fail;
SET_REGS_MATCHED ();
d++;
break;
case notwordchar:
DEBUG_PRINT1 ("EXECUTING non-Emacs notwordchar.\n");
PREFETCH ();
if (WORDCHAR_P (d))
goto fail;
SET_REGS_MATCHED ();
d++;
break;
#endif
default:
abort ();
}
continue;
fail:
if (!FAIL_STACK_EMPTY ())
{
DEBUG_PRINT1 ("\nFAIL:\n");
POP_FAILURE_POINT (d, p,
lowest_active_reg, highest_active_reg,
regstart, regend, reg_info);
if (!p)
goto fail;
assert (p <= pend);
if (p < pend)
{
boolean is_a_jump_n = false;
switch ((re_opcode_t) *p)
{
case jump_n:
is_a_jump_n = true;
case maybe_pop_jump:
case pop_failure_jump:
case jump:
p1 = p + 1;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
p1 += mcnt;
if ((is_a_jump_n && (re_opcode_t) *p1 == succeed_n)
|| (!is_a_jump_n
&& (re_opcode_t) *p1 == on_failure_jump))
goto fail;
break;
default:
;
}
}
if (d >= string1 && d <= end1)
dend = end_match_1;
}
else
break;
}
if (best_regs_set)
goto restore_best_regs;
FREE_VARIABLES ();
return -1;
}
static boolean
PREFIX(group_match_null_string_p) (p, end, reg_info)
UCHAR_T **p, *end;
PREFIX(register_info_type) *reg_info;
{
int mcnt;
UCHAR_T *p1 = *p + 2;
while (p1 < end)
{
switch ((re_opcode_t) *p1)
{
case on_failure_jump:
p1++;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if (mcnt >= 0)
{
while ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] ==
jump_past_alt)
{
if (!PREFIX(alt_match_null_string_p) (p1, p1 + mcnt -
(1 + OFFSET_ADDRESS_SIZE),
reg_info))
return false;
p1 += mcnt;
if ((re_opcode_t) *p1 != on_failure_jump)
break;
p1++;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if ((re_opcode_t) p1[mcnt-(1+OFFSET_ADDRESS_SIZE)] !=
jump_past_alt)
{
p1 -= 1 + OFFSET_ADDRESS_SIZE;
break;
}
}
EXTRACT_NUMBER (mcnt, p1 - OFFSET_ADDRESS_SIZE);
if (!PREFIX(alt_match_null_string_p) (p1, p1 + mcnt, reg_info))
return false;
p1 += mcnt;
}
break;
case stop_memory:
assert (p1[1] == **p);
*p = p1 + 2;
return true;
default:
if (!PREFIX(common_op_match_null_string_p) (&p1, end, reg_info))
return false;
}
}
return false;
}
static boolean
PREFIX(alt_match_null_string_p) (p, end, reg_info)
UCHAR_T *p, *end;
PREFIX(register_info_type) *reg_info;
{
int mcnt;
UCHAR_T *p1 = p;
while (p1 < end)
{
switch ((re_opcode_t) *p1)
{
case on_failure_jump:
p1++;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
p1 += mcnt;
break;
default:
if (!PREFIX(common_op_match_null_string_p) (&p1, end, reg_info))
return false;
}
}
return true;
}
static boolean
PREFIX(common_op_match_null_string_p) (p, end, reg_info)
UCHAR_T **p, *end;
PREFIX(register_info_type) *reg_info;
{
int mcnt;
boolean ret;
int reg_no;
UCHAR_T *p1 = *p;
switch ((re_opcode_t) *p1++)
{
case no_op:
case begline:
case endline:
case begbuf:
case endbuf:
case wordbeg:
case wordend:
case wordbound:
case notwordbound:
#ifdef emacs
case before_dot:
case at_dot:
case after_dot:
#endif
break;
case start_memory:
reg_no = *p1;
assert (reg_no > 0 && reg_no <= MAX_REGNUM);
ret = PREFIX(group_match_null_string_p) (&p1, end, reg_info);
if (REG_MATCH_NULL_STRING_P (reg_info[reg_no]) == MATCH_NULL_UNSET_VALUE)
REG_MATCH_NULL_STRING_P (reg_info[reg_no]) = ret;
if (!ret)
return false;
break;
case jump:
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if (mcnt >= 0)
p1 += mcnt;
else
return false;
break;
case succeed_n:
p1 += OFFSET_ADDRESS_SIZE;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
if (mcnt == 0)
{
p1 -= 2 * OFFSET_ADDRESS_SIZE;
EXTRACT_NUMBER_AND_INCR (mcnt, p1);
p1 += mcnt;
}
else
return false;
break;
case duplicate:
if (!REG_MATCH_NULL_STRING_P (reg_info[*p1]))
return false;
break;
case set_number_at:
p1 += 2 * OFFSET_ADDRESS_SIZE;
default:
return false;
}
*p = p1;
return true;
}
static int
PREFIX(bcmp_translate) (s1, s2, len, translate)
const CHAR_T *s1, *s2;
register int len;
RE_TRANSLATE_TYPE translate;
{
register const UCHAR_T *p1 = (const UCHAR_T *) s1;
register const UCHAR_T *p2 = (const UCHAR_T *) s2;
while (len)
{
#ifdef WCHAR
if (((*p1<=0xff)?translate[*p1++]:*p1++)
!= ((*p2<=0xff)?translate[*p2++]:*p2++))
return 1;
#else
if (translate[*p1++] != translate[*p2++]) return 1;
#endif
len--;
}
return 0;
}
#else
const char *
re_compile_pattern (pattern, length, bufp)
const char *pattern;
size_t length;
struct re_pattern_buffer *bufp;
{
reg_errcode_t ret;
bufp->regs_allocated = REGS_UNALLOCATED;
bufp->no_sub = 0;
bufp->newline_anchor = 1;
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
ret = wcs_regex_compile (pattern, length, re_syntax_options, bufp);
else
# endif
ret = byte_regex_compile (pattern, length, re_syntax_options, bufp);
if (!ret)
return NULL;
return gettext (re_error_msgid[(int) ret]);
}
#ifdef _LIBC
weak_alias (__re_compile_pattern, re_compile_pattern)
#endif
#if defined _REGEX_RE_COMP || defined _LIBC
static struct re_pattern_buffer re_comp_buf;
char *
#ifdef _LIBC
weak_function
#endif
re_comp (s)
const char *s;
{
reg_errcode_t ret;
if (!s)
{
if (!re_comp_buf.buffer)
return gettext ("No previous regular expression");
return 0;
}
if (!re_comp_buf.buffer)
{
re_comp_buf.buffer = (unsigned char *) malloc (200);
if (re_comp_buf.buffer == NULL)
return (char *) gettext (re_error_msgid[(int) REG_ESPACE]);
re_comp_buf.allocated = 200;
re_comp_buf.fastmap = (char *) malloc (1 << BYTEWIDTH);
if (re_comp_buf.fastmap == NULL)
return (char *) gettext (re_error_msgid[(int) REG_ESPACE]);
}
re_comp_buf.newline_anchor = 1;
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
ret = wcs_regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf);
else
# endif
ret = byte_regex_compile (s, strlen (s), re_syntax_options, &re_comp_buf);
if (!ret)
return NULL;
return (char *) gettext (re_error_msgid[(int) ret]);
}
int
#ifdef _LIBC
weak_function
#endif
re_exec (s)
const char *s;
{
const int len = strlen (s);
return
0 <= re_search (&re_comp_buf, s, len, 0, len, (struct re_registers *) 0);
}
#endif
#ifndef emacs
int
regcomp (preg, pattern, cflags)
regex_t *preg;
const char *pattern;
int cflags;
{
reg_errcode_t ret;
reg_syntax_t syntax
= (cflags & REG_EXTENDED) ?
RE_SYNTAX_POSIX_EXTENDED : RE_SYNTAX_POSIX_BASIC;
preg->buffer = 0;
preg->allocated = 0;
preg->used = 0;
preg->fastmap = (char *) malloc (1 << BYTEWIDTH);
if (cflags & REG_ICASE)
{
unsigned i;
preg->translate
= (RE_TRANSLATE_TYPE) malloc (CHAR_SET_SIZE
* sizeof (*(RE_TRANSLATE_TYPE)0));
if (preg->translate == NULL)
return (int) REG_ESPACE;
for (i = 0; i < CHAR_SET_SIZE; i++)
preg->translate[i] = ISUPPER (i) ? TOLOWER (i) : (int) i;
}
else
preg->translate = NULL;
if (cflags & REG_NEWLINE)
{
syntax &= ~RE_DOT_NEWLINE;
syntax |= RE_HAT_LISTS_NOT_NEWLINE;
preg->newline_anchor = 1;
}
else
preg->newline_anchor = 0;
preg->no_sub = !!(cflags & REG_NOSUB);
# ifdef MBS_SUPPORT
if (MB_CUR_MAX != 1)
ret = wcs_regex_compile (pattern, strlen (pattern), syntax, preg);
else
# endif
ret = byte_regex_compile (pattern, strlen (pattern), syntax, preg);
if (ret == REG_ERPAREN) ret = REG_EPAREN;
if (ret == REG_NOERROR && preg->fastmap)
{
if (re_compile_fastmap (preg) == -2)
{
free (preg->fastmap);
preg->fastmap = NULL;
}
}
return (int) ret;
}
#ifdef _LIBC
weak_alias (__regcomp, regcomp)
#endif
int
regexec (preg, string, nmatch, pmatch, eflags)
const regex_t *preg;
const char *string;
size_t nmatch;
regmatch_t pmatch[];
int eflags;
{
int ret;
struct re_registers regs;
regex_t private_preg;
int len = strlen (string);
boolean want_reg_info = !preg->no_sub && nmatch > 0;
private_preg = *preg;
private_preg.not_bol = !!(eflags & REG_NOTBOL);
private_preg.not_eol = !!(eflags & REG_NOTEOL);
private_preg.regs_allocated = REGS_FIXED;
if (want_reg_info)
{
regs.num_regs = nmatch;
regs.start = TALLOC (nmatch * 2, regoff_t);
if (regs.start == NULL)
return (int) REG_NOMATCH;
regs.end = regs.start + nmatch;
}
ret = re_search (&private_preg, string, len,
0, len,
want_reg_info ? ®s : (struct re_registers *) 0);
if (want_reg_info)
{
if (ret >= 0)
{
unsigned r;
for (r = 0; r < nmatch; r++)
{
pmatch[r].rm_so = regs.start[r];
pmatch[r].rm_eo = regs.end[r];
}
}
free (regs.start);
}
return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH;
}
#ifdef _LIBC
weak_alias (__regexec, regexec)
#endif
size_t
regerror (errcode, preg, errbuf, errbuf_size)
int errcode;
const regex_t *preg ATTRIBUTE_UNUSED;
char *errbuf;
size_t errbuf_size;
{
const char *msg;
size_t msg_size;
if (errcode < 0
|| errcode >= (int) (sizeof (re_error_msgid)
/ sizeof (re_error_msgid[0])))
abort ();
msg = gettext (re_error_msgid[errcode]);
msg_size = strlen (msg) + 1;
if (errbuf_size != 0)
{
if (msg_size > errbuf_size)
{
#if defined HAVE_MEMPCPY || defined _LIBC
*((char *) mempcpy (errbuf, msg, errbuf_size - 1)) = '\0';
#else
memcpy (errbuf, msg, errbuf_size - 1);
errbuf[errbuf_size - 1] = 0;
#endif
}
else
memcpy (errbuf, msg, msg_size);
}
return msg_size;
}
#ifdef _LIBC
weak_alias (__regerror, regerror)
#endif
void
regfree (preg)
regex_t *preg;
{
if (preg->buffer != NULL)
free (preg->buffer);
preg->buffer = NULL;
preg->allocated = 0;
preg->used = 0;
if (preg->fastmap != NULL)
free (preg->fastmap);
preg->fastmap = NULL;
preg->fastmap_accurate = 0;
if (preg->translate != NULL)
free (preg->translate);
preg->translate = NULL;
}
#ifdef _LIBC
weak_alias (__regfree, regfree)
#endif
#endif
#endif
#undef STORE_NUMBER
#undef STORE_NUMBER_AND_INCR
#undef EXTRACT_NUMBER
#undef EXTRACT_NUMBER_AND_INCR
#undef DEBUG_PRINT_COMPILED_PATTERN
#undef DEBUG_PRINT_DOUBLE_STRING
#undef INIT_FAIL_STACK
#undef RESET_FAIL_STACK
#undef DOUBLE_FAIL_STACK
#undef PUSH_PATTERN_OP
#undef PUSH_FAILURE_POINTER
#undef PUSH_FAILURE_INT
#undef PUSH_FAILURE_ELT
#undef POP_FAILURE_POINTER
#undef POP_FAILURE_INT
#undef POP_FAILURE_ELT
#undef DEBUG_PUSH
#undef DEBUG_POP
#undef PUSH_FAILURE_POINT
#undef POP_FAILURE_POINT
#undef REG_UNSET_VALUE
#undef REG_UNSET
#undef PATFETCH
#undef PATFETCH_RAW
#undef PATUNFETCH
#undef TRANSLATE
#undef INIT_BUF_SIZE
#undef GET_BUFFER_SPACE
#undef BUF_PUSH
#undef BUF_PUSH_2
#undef BUF_PUSH_3
#undef STORE_JUMP
#undef STORE_JUMP2
#undef INSERT_JUMP
#undef INSERT_JUMP2
#undef EXTEND_BUFFER
#undef GET_UNSIGNED_NUMBER
#undef FREE_STACK_RETURN
# undef POINTER_TO_OFFSET
# undef MATCHING_IN_FRST_STRING
# undef PREFETCH
# undef AT_STRINGS_BEG
# undef AT_STRINGS_END
# undef WORDCHAR_P
# undef FREE_VAR
# undef FREE_VARIABLES
# undef NO_HIGHEST_ACTIVE_REG
# undef NO_LOWEST_ACTIVE_REG
# undef CHAR_T
# undef UCHAR_T
# undef COMPILED_BUFFER_VAR
# undef OFFSET_ADDRESS_SIZE
# undef CHAR_CLASS_SIZE
# undef PREFIX
# undef ARG_PREFIX
# undef PUT_CHAR
# undef BYTE
# undef WCHAR
# define DEFINED_ONCE