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|
- #undef emacs
- #include <features.h>
- #include <unistd.h>
- #include <stdio.h>
- #ifdef __UCLIBC__
- # undef _LIBC
- # define _REGEX_RE_COMP
- # define STDC_HEADERS
- # define __RE_TRANSLATE_TYPE char *
- # define RE_TRANSLATE_TYPE __RE_TRANSLATE_TYPE
- #endif
- #include <stdlib.h>
- #include <stdint.h>
- #include <string.h>
- #if defined _AIX && !defined REGEX_MALLOC
- # pragma alloca
- #endif
- #ifdef HAVE_CONFIG_H
- # include <config.h>
- #endif
- #ifndef INSIDE_RECURSION
- # if defined STDC_HEADERS && !defined emacs
- # include <stddef.h>
- # else
- # include <sys/types.h>
- # endif
- # if defined __UCLIBC_HAS_WCHAR__
- # define WIDE_CHAR_SUPPORT 1
- # include <wchar.h>
- # include <wctype.h>
- # endif
- # ifdef _LIBC
- # define btowc __btowc
- # include <locale/localeinfo.h>
- # include <locale/elem-hash.h>
- # include <langinfo.h>
- # include <locale/coll-lookup.h>
- # endif
- # ifndef gettext
- # 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 || defined HAVE_LIMITS_H
- # include <limits.h>
- # endif
- # ifndef MB_LEN_MAX
- # define MB_LEN_MAX 1
- # endif
- # include <regex.h>
- # define translate __REPB_PREFIX(translate)
- # 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 (void);
- static void
- init_syntax_once (void)
- {
- register int c;
- static smallint 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 __intptr_t_defined
- 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 (const char *pattern, size_t size,
- reg_syntax_t syntax,
- struct re_pattern_buffer *bufp);
- static int byte_re_match_2_internal (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 (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 (struct re_pattern_buffer *bufp);
- #ifdef MBS_SUPPORT
- static reg_errcode_t wcs_regex_compile (const char *pattern, size_t size,
- reg_syntax_t syntax,
- struct re_pattern_buffer *bufp);
- static int wcs_re_match_2_internal (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 (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 (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
- # define PREFIX(name) byte_##name
- # 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)
- # define PREFIX(name) wcs_##name
- # define ARG_PREFIX(name) c##name
- # define PUT_CHAR(c) printf ("%C", c);
- # define TRUE 1
- # define FALSE 0
- # else
- # ifdef MBS_SUPPORT
- # define WCHAR
- # define INSIDE_RECURSION
- # include "regex_old.c"
- # undef INSIDE_RECURSION
- # endif
- # define BYTE
- # define INSIDE_RECURSION
- # include "regex_old.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) (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) (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 smallint 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
- static void
- print_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
- static void
- PREFIX(print_partial_compiled_pattern) (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
- }
- static void
- PREFIX(print_compiled_pattern) (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);
-
- }
- static void
- PREFIX(print_double_string) (
- const CHAR_T *where,
- const CHAR_T *string1,
- int size1,
- const CHAR_T *string2,
- 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;
- }
- }
- }
- }
- # if 0
- void
- printchar (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)
- {
- 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 (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;
- }
- static const char re_error_msgid[] =
- {
- # define REG_NOERROR_IDX 0
- gettext_noop ("Success")
- "\0"
- # define REG_NOMATCH_IDX (REG_NOERROR_IDX + sizeof "Success")
- gettext_noop ("No match")
- "\0"
- # define REG_BADPAT_IDX (REG_NOMATCH_IDX + sizeof "No match")
- gettext_noop ("Invalid regular expression")
- "\0"
- # define REG_ECOLLATE_IDX (REG_BADPAT_IDX + sizeof "Invalid regular expression")
- gettext_noop ("Invalid collation character")
- "\0"
- # define REG_ECTYPE_IDX (REG_ECOLLATE_IDX + sizeof "Invalid collation character")
- gettext_noop ("Invalid character class name")
- "\0"
- # define REG_EESCAPE_IDX (REG_ECTYPE_IDX + sizeof "Invalid character class name")
- gettext_noop ("Trailing backslash")
- "\0"
- # define REG_ESUBREG_IDX (REG_EESCAPE_IDX + sizeof "Trailing backslash")
- gettext_noop ("Invalid back reference")
- "\0"
- # define REG_EBRACK_IDX (REG_ESUBREG_IDX + sizeof "Invalid back reference")
- gettext_noop ("Unmatched [ or [^")
- "\0"
- # define REG_EPAREN_IDX (REG_EBRACK_IDX + sizeof "Unmatched [ or [^")
- gettext_noop ("Unmatched ( or \\(")
- "\0"
- # define REG_EBRACE_IDX (REG_EPAREN_IDX + sizeof "Unmatched ( or \\(")
- gettext_noop ("Unmatched \\{")
- "\0"
- # define REG_BADBR_IDX (REG_EBRACE_IDX + sizeof "Unmatched \\{")
- gettext_noop ("Invalid content of \\{\\}")
- "\0"
- # define REG_ERANGE_IDX (REG_BADBR_IDX + sizeof "Invalid content of \\{\\}")
- gettext_noop ("Invalid range end")
- "\0"
- # define REG_ESPACE_IDX (REG_ERANGE_IDX + sizeof "Invalid range end")
- gettext_noop ("Memory exhausted")
- "\0"
- # define REG_BADRPT_IDX (REG_ESPACE_IDX + sizeof "Memory exhausted")
- gettext_noop ("Invalid preceding regular expression")
- "\0"
- # define REG_EEND_IDX (REG_BADRPT_IDX + sizeof "Invalid preceding regular expression")
- gettext_noop ("Premature end of regular expression")
- "\0"
- # define REG_ESIZE_IDX (REG_EEND_IDX + sizeof "Premature end of regular expression")
- gettext_noop ("Regular expression too big")
- "\0"
- # define REG_ERPAREN_IDX (REG_ESIZE_IDX + sizeof "Regular expression too big")
- gettext_noop ("Unmatched ) or \\)")
- };
- static const uint16_t re_error_msgid_idx[] =
- {
- REG_NOERROR_IDX,
- REG_NOMATCH_IDX,
- REG_BADPAT_IDX,
- REG_ECOLLATE_IDX,
- REG_ECTYPE_IDX,
- REG_EESCAPE_IDX,
- REG_ESUBREG_IDX,
- REG_EBRACK_IDX,
- REG_EPAREN_IDX,
- REG_EBRACE_IDX,
- REG_BADBR_IDX,
- REG_ERANGE_IDX,
- REG_ESPACE_IDX,
- REG_BADRPT_IDX,
- REG_EEND_IDX,
- REG_ESIZE_IDX,
- REG_ERPAREN_IDX
- };
- #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_opcode_t op, UCHAR_T *loc, int arg);
- static void PREFIX(store_op2) (re_opcode_t op, UCHAR_T *loc,
- int arg1, int arg2);
- static void PREFIX(insert_op1) (re_opcode_t op, UCHAR_T *loc,
- int arg, UCHAR_T *end);
- static void PREFIX(insert_op2) (re_opcode_t op, UCHAR_T *loc,
- int arg1, int arg2, UCHAR_T *end);
- static boolean PREFIX(at_begline_loc_p) (const CHAR_T *pattern,
- const CHAR_T *p,
- reg_syntax_t syntax);
- static boolean PREFIX(at_endline_loc_p) (const CHAR_T *p,
- const CHAR_T *pend,
- reg_syntax_t syntax);
- # ifdef WCHAR
- static reg_errcode_t wcs_compile_range (CHAR_T range_start,
- const CHAR_T **p_ptr,
- const CHAR_T *pend,
- __RE_TRANSLATE_TYPE translate,
- reg_syntax_t syntax,
- UCHAR_T *b,
- CHAR_T *char_set);
- static void insert_space (int num, CHAR_T *loc, CHAR_T *end);
- # else
- static reg_errcode_t byte_compile_range (unsigned int range_start,
- const char **p_ptr,
- const char *pend,
- __RE_TRANSLATE_TYPE 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
- # 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; \
- b += incr; \
- begalt += incr; \
- if (fixup_alt_jump) \
- fixup_alt_jump += incr; \
- if (laststart) \
- laststart += incr; \
- if (pending_exact) \
- pending_exact += incr; \
- } \
- } 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; \
- b += incr; \
- begalt += incr; \
- if (fixup_alt_jump) \
- fixup_alt_jump += incr; \
- if (laststart) \
- laststart += incr; \
- if (pending_exact) \
- pending_exact += incr; \
- } \
- } 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 || defined 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) (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 (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) (
- 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 CHAR_CLASS_MAX_LENGTH != 256
- if (c1 < CHAR_CLASS_MAX_LENGTH)
- str[c1++] = c;
- else
-
- str[0] = '\0';
- #else
- str[c1++] = c;
- #endif
- }
- str[c1] = '\0';
-
- if (c == ':' && *p == ']')
- {
- # if defined _LIBC || defined 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) (
- re_opcode_t op,
- UCHAR_T *loc,
- int arg)
- {
- *loc = (UCHAR_T) op;
- STORE_NUMBER (loc + 1, arg);
- }
- static void
- PREFIX(store_op2) (
- re_opcode_t op,
- UCHAR_T *loc,
- int arg1, int arg2)
- {
- *loc = (UCHAR_T) op;
- STORE_NUMBER (loc + 1, arg1);
- STORE_NUMBER (loc + 1 + OFFSET_ADDRESS_SIZE, arg2);
- }
- static void
- PREFIX(insert_op1) (
- 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) (
- re_opcode_t op,
- UCHAR_T *loc,
- int arg1, int 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) (
- const CHAR_T *pattern, const CHAR_T *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) (
- const CHAR_T *p, const CHAR_T *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_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 (
- 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 (
- CHAR_T range_start_char,
- const CHAR_T **p_ptr, const CHAR_T *pend,
- __RE_TRANSLATE_TYPE translate,
- reg_syntax_t syntax,
- CHAR_T *b, CHAR_T *char_set)
- {
- 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 (
- unsigned int range_start_char,
- const char **p_ptr, const char *pend,
- __RE_TRANSLATE_TYPE translate,
- reg_syntax_t syntax,
- unsigned char *b)
- {
- unsigned this_char;
- const char *p = *p_ptr;
- reg_errcode_t ret;
- # ifdef _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;
- # ifdef _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)
- {
- 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) (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 == 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 (struct re_pattern_buffer *bufp)
- {
- # ifdef MBS_SUPPORT
- if (MB_CUR_MAX != 1)
- return wcs_re_compile_fastmap(bufp);
- # endif
- return byte_re_compile_fastmap(bufp);
- }
- libc_hidden_def(re_compile_fastmap)
- void
- re_set_registers (
- struct re_pattern_buffer *bufp,
- struct re_registers *regs,
- unsigned num_regs,
- regoff_t *starts, regoff_t *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;
- }
- }
- int
- re_search (
- struct re_pattern_buffer *bufp,
- const char *string,
- int size, int startpos, int range,
- struct re_registers *regs)
- {
- return re_search_2 (bufp, NULL, 0, string, size, startpos, range,
- regs, size);
- }
- libc_hidden_def(re_search)
- int
- re_search_2 (
- 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)
- {
- # ifdef MBS_SUPPORT
- if (MB_CUR_MAX != 1)
- return wcs_re_search_2 (bufp, string1, size1, string2, size2, startpos,
- range, regs, stop);
- # endif
- return byte_re_search_2 (bufp, string1, size1, string2, size2, startpos,
- range, regs, stop);
- }
- libc_hidden_def(re_search_2)
- #endif
- #ifdef INSIDE_RECURSION
- #ifdef MATCH_MAY_ALLOCATE
- # define FREE_VAR(var) if (var) REGEX_FREE (var); var = NULL
- #else
- # define FREE_VAR(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) (
- 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)
- {
- 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 (
- struct re_pattern_buffer *bufp,
- const char *string,
- int size, int 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;
- }
- #endif
- #endif
- #ifdef INSIDE_RECURSION
- static boolean PREFIX(group_match_null_string_p) (UCHAR_T **p,
- UCHAR_T *end,
- PREFIX(register_info_type) *reg_info);
- static boolean PREFIX(alt_match_null_string_p) (UCHAR_T *p,
- UCHAR_T *end,
- PREFIX(register_info_type) *reg_info);
- static boolean PREFIX(common_op_match_null_string_p) (UCHAR_T **p,
- UCHAR_T *end,
- PREFIX(register_info_type) *reg_info);
- static int PREFIX(bcmp_translate) (const CHAR_T *s1, const CHAR_T *s2,
- int len, __RE_TRANSLATE_TYPE translate);
- #else
- int
- re_match_2 (
- struct re_pattern_buffer *bufp,
- const char *string1, int size1,
- const char *string2, int 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;
- }
- #endif
- #ifdef INSIDE_RECURSION
- #ifdef WCHAR
- static int count_mbs_length (int *, int);
- static int
- count_mbs_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 (
- 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)
- #else
- static int
- byte_re_match_2_internal (
- struct re_pattern_buffer *bufp,
- const char *string1, int size1,
- const char *string2, int 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 = 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);
-
- (void) pdummy;
- (void) sdummy;
- }
-
- 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) (
- UCHAR_T **p, UCHAR_T *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) (
- UCHAR_T *p, UCHAR_T *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) (
- UCHAR_T **p, UCHAR_T *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) (
- const CHAR_T *s1, const CHAR_T *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 (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 + re_error_msgid_idx[(int) ret]);
- }
- #if defined _REGEX_RE_COMP || defined _LIBC
- static struct re_pattern_buffer re_comp_buf;
- char *
- #ifdef _LIBC
- weak_function
- #endif
- re_comp (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
- + re_error_msgid_idx[(int) REG_ESPACE]);
- re_comp_buf.allocated = 200;
- re_comp_buf.fastmap = (char *) malloc (1 << BYTEWIDTH);
- if (re_comp_buf.fastmap == NULL)
- return (char *) gettext (re_error_msgid
- + re_error_msgid_idx[(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 + re_error_msgid_idx[(int) ret]);
- }
- int
- #if defined _LIBC || defined __UCLIBC__
- weak_function
- #endif
- re_exec (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 (
- 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) : 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;
- }
- int
- regexec (
- 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;
-
- memcpy(&private_preg, preg, sizeof(*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;
- }
- libc_hidden_def(regexec)
- size_t
- regerror (
- 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_idx)
- / sizeof (re_error_msgid_idx[0])))
-
- abort ();
- msg = gettext (re_error_msgid + re_error_msgid_idx[errcode]);
- msg_size = strlen (msg) + 1;
- if (errbuf_size != 0)
- {
- if (msg_size > errbuf_size)
- {
- memcpy (errbuf, msg, errbuf_size - 1);
- errbuf[errbuf_size - 1] = 0;
- }
- else
- memcpy (errbuf, msg, msg_size);
- }
- return msg_size;
- }
- void
- regfree (regex_t *preg)
- {
- free (preg->buffer);
- preg->buffer = NULL;
- preg->allocated = 0;
- preg->used = 0;
- free (preg->fastmap);
- preg->fastmap = NULL;
- preg->fastmap_accurate = 0;
- free (preg->translate);
- preg->translate = NULL;
- }
- libc_hidden_def(regfree)
- #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
|