diff options
Diffstat (limited to 'posix/regex.c')
| -rw-r--r-- | posix/regex.c | 107 |
1 files changed, 103 insertions, 4 deletions
diff --git a/posix/regex.c b/posix/regex.c index 0778bb85df..1051cc3ac6 100644 --- a/posix/regex.c +++ b/posix/regex.c @@ -51,6 +51,29 @@ #if defined _LIBC || (defined HAVE_WCTYPE_H && defined HAVE_WCHAR_H) # include <wctype.h> # include <wchar.h> + +/* We have to keep the namespace clean. */ +# define regfree(preg) __regfree (preg) +# define regexec(pr, st, nm, pm, ef) __regexec (pr, st, nm, pm, ef) +# define regcomp(preg, pattern, cflags) __regcomp (preg, pattern, cflags) +# define regerror(errcode, preg, errbuf, errbuf_size) \ + __regerror(errcode, preg, errbuf, errbuf_size) +# define re_set_registers(bu, re, nu, st, en) \ + __re_set_registers (bu, re, nu, st, en) +# define re_match_2(bufp, string1, size1, string2, size2, pos, regs, stop) \ + __re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop) +# define re_match(bufp, string, size, pos, regs) \ + __re_match (bufp, string, size, pos, regs) +# define re_search(bufp, string, size, startpos, range, regs) \ + __re_search (bufp, string, size, startpos, range, regs) +# define re_compile_pattern(pattern, length, bufp) \ + __re_compile_pattern (pattern, length, bufp) +# define re_set_syntax(syntax) __re_set_syntax (syntax) +# define re_search_2(bufp, st1, s1, st2, s2, startpos, range, regs, stop) \ + __re_search_2 (bufp, st1, s1, st2, s2, startpos, range, regs, stop) +# define re_compile_fastmap(bufp) __re_compile_fastmap (bufp) + +#define btowc __btowc #endif /* This is for other GNU distributions with internationalized messages. */ @@ -104,8 +127,12 @@ char *realloc (); # ifndef INHIBIT_STRING_HEADER # if defined HAVE_STRING_H || defined STDC_HEADERS || defined _LIBC # include <string.h> -# if !defined bzero && !defined _LIBC -# define bzero(s, n) (memset (s, '\0', n), (s)) +# ifndef bzero +# ifndef _LIBC +# define bzero(s, n) (memset (s, '\0', n), (s)) +# else +# define bzero(s, n) __bzero (s, n) +# endif # endif # else # include <strings.h> @@ -941,7 +968,13 @@ printchar (c) syntax, so it can be changed between regex compilations. */ /* This has no initializer because initialized variables in Emacs become read-only after dumping. */ +#ifdef _LIBC +reg_syntax_t __re_syntax_options; +weak_alias (__re_syntax_options, re_syntax_options) +# define re_syntax_options __re_syntax_options +#else reg_syntax_t re_syntax_options; +#endif /* Specify the precise syntax of regexps for compilation. This provides @@ -966,6 +999,9 @@ re_set_syntax (syntax) #endif /* DEBUG */ return ret; } +#ifdef _LIBC +weak_alias (__re_set_syntax, re_set_syntax) +#endif /* This table gives an error message for each of the error codes listed in regex.h. Obviously the order here has to be same as there. @@ -1053,9 +1089,17 @@ static const char *re_error_msgid[] = # if defined MATCH_MAY_ALLOCATE /* 4400 was enough to cause a crash on Alpha OSF/1, whose default stack limit is 2mb. */ +# ifdef _LIBC +long int __re_max_failures = 4000; +# else long int re_max_failures = 4000; +# endif # else +# ifdef _LIBC +long int __re_max_failures = 2000; +# else long int re_max_failures = 2000; +# endif # endif union fail_stack_elt @@ -1078,11 +1122,24 @@ typedef struct # if defined MATCH_MAY_ALLOCATE /* 4400 was enough to cause a crash on Alpha OSF/1, whose default stack limit is 2mb. */ +# ifdef _LIBC +int __re_max_failures = 20000; +# else int re_max_failures = 20000; +# endif # else +# ifdef _LIBC +int __re_max_failures = 2000; +# else int re_max_failures = 2000; +# endif # endif +#ifdef _LIBC +weak_alias (__re_max_failures, re_max_failures) +# define re_max_failures __re_max_failures +#endif + union fail_stack_elt { unsigned char *pointer; @@ -1694,7 +1751,11 @@ typedef struct # define CHAR_CLASS_MAX_LENGTH 256 # endif -# define IS_CHAR_CLASS(string) wctype (string) +# ifdef _LIBC +# define IS_CHAR_CLASS(string) __wctype (string) +# else +# define IS_CHAR_CLASS(string) wctype (string) +# endif #else # define CHAR_CLASS_MAX_LENGTH 6 /* Namely, `xdigit'. */ @@ -2189,7 +2250,7 @@ regex_compile (pattern, size, syntax, bufp) wctype_t wt; int ch; - wt = wctype (str); + wt = IS_CHAR_CLASS (str); if (wt == 0) FREE_STACK_RETURN (REG_ECTYPE); @@ -2201,8 +2262,13 @@ regex_compile (pattern, size, syntax, bufp) 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))) @@ -3370,6 +3436,9 @@ re_compile_fastmap (bufp) RESET_FAIL_STACK (); return 0; } /* re_compile_fastmap */ +#ifdef _LIBC +weak_alias (__re_compile_fastmap, re_compile_fastmap) +#endif /* Set REGS to hold NUM_REGS registers, storing them in STARTS and ENDS. Subsequent matches using PATTERN_BUFFER and REGS will use @@ -3405,6 +3474,9 @@ re_set_registers (bufp, regs, num_regs, starts, ends) regs->start = regs->end = (regoff_t *) 0; } } +#ifdef _LIBC +weak_alias (__re_set_registers, re_set_registers) +#endif /* Searching routines. */ @@ -3421,6 +3493,9 @@ re_search (bufp, string, size, startpos, range, regs) return re_search_2 (bufp, NULL, 0, string, size, startpos, range, regs, size); } +#ifdef _LIBC +weak_alias (__re_search, re_search) +#endif /* Using the compiled pattern in BUFP->buffer, first tries to match the @@ -3577,6 +3652,9 @@ re_search_2 (bufp, string1, size1, string2, size2, startpos, range, regs, stop) } return -1; } /* re_search_2 */ +#ifdef _LIBC +weak_alias (__re_search_2, re_search_2) +#endif /* This converts PTR, a pointer into one of the search strings `string1' and `string2' into an offset from the beginning of that string. */ @@ -3678,6 +3756,9 @@ re_match (bufp, string, size, pos, regs) # endif return result; } +# ifdef _LIBC +weak_alias (__re_match, re_match) +# endif #endif /* not emacs */ static boolean group_match_null_string_p _RE_ARGS ((unsigned char **p, @@ -3723,6 +3804,9 @@ re_match_2 (bufp, string1, size1, string2, size2, pos, regs, stop) #endif return result; } +#ifdef _LIBC +weak_alias (__re_match_2, re_match_2) +#endif /* This is a separate function so that we can force an alloca cleanup afterwards. */ @@ -5416,6 +5500,9 @@ re_compile_pattern (pattern, length, bufp) return NULL; return gettext (re_error_msgid[(int) ret]); } +#ifdef _LIBC +weak_alias (__re_compile_pattern, re_compile_pattern) +#endif /* Entry points compatible with 4.2 BSD regex library. We don't define them unless specifically requested. */ @@ -5586,6 +5673,9 @@ regcomp (preg, pattern, cflags) return (int) ret; } +#ifdef _LIBC +weak_alias (__regcomp, regcomp) +#endif /* regexec searches for a given pattern, specified by PREG, in the @@ -5662,6 +5752,9 @@ regexec (preg, string, nmatch, pmatch, eflags) /* We want zero return to mean success, unlike `re_search'. */ return ret >= 0 ? (int) REG_NOERROR : (int) REG_NOMATCH; } +#ifdef _LIBC +weak_alias (__regexec, regexec) +#endif /* Returns a message corresponding to an error code, ERRCODE, returned @@ -5707,6 +5800,9 @@ regerror (errcode, preg, errbuf, errbuf_size) return msg_size; } +#ifdef _LIBC +weak_alias (__regerror, regerror) +#endif /* Free dynamically allocated space used by PREG. */ @@ -5731,5 +5827,8 @@ regfree (preg) free (preg->translate); preg->translate = NULL; } +#ifdef _LIBC +weak_alias (__regfree, regfree) +#endif #endif /* not emacs */ |