diff options
Diffstat (limited to 'libiberty')
| -rw-r--r-- | libiberty/ChangeLog | 17 | ||||
| -rw-r--r-- | libiberty/regex.c | 153 |
2 files changed, 124 insertions, 46 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index 6e9f93f..82def67 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,20 @@ +2001-07-30 Andreas Jaeger <aj@suse.de> + + * regex.c: Declare wcs functions only if compiling with + MBS_SUPPORT. + Don't use #elif for traditional C. + +2001-07-23 Ulrich Drepper <drepper@redhat.com> + + * regex.c: Revamp memory allocation for WCHAR functions to + not use too much stack. + +2001-07-30 Andreas Jaeger <aj@suse.de> + + * regex.c: Declare wcs functions only if compiling with + MBS_SUPPORT. + Don't use #elif for traditional C. + 2001-07-25 Daniel Jacobowitz <drow@mvista.com> * Makefile.in (regex.o): Add dependency on config.h. diff --git a/libiberty/regex.c b/libiberty/regex.c index f067752..555d3bb 100644 --- a/libiberty/regex.c +++ b/libiberty/regex.c @@ -410,9 +410,6 @@ typedef char boolean; static reg_errcode_t byte_regex_compile _RE_ARGS ((const char *pattern, size_t size, reg_syntax_t syntax, struct re_pattern_buffer *bufp)); -static reg_errcode_t wcs_regex_compile _RE_ARGS ((const char *pattern, size_t size, - reg_syntax_t syntax, - struct re_pattern_buffer *bufp)); static int byte_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp, const char *string1, int size1, @@ -420,6 +417,19 @@ static int byte_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp, int pos, struct re_registers *regs, int stop)); +static int byte_re_search_2 PARAMS ((struct re_pattern_buffer *bufp, + const char *string1, int size1, + const char *string2, int size2, + int startpos, int range, + struct re_registers *regs, int stop)); +static int byte_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp)); + +#ifdef MBS_SUPPORT +static reg_errcode_t wcs_regex_compile _RE_ARGS ((const char *pattern, size_t size, + reg_syntax_t syntax, + struct re_pattern_buffer *bufp)); + + static int wcs_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp, const char *cstring1, int csize1, const char *cstring2, int csize2, @@ -429,19 +439,13 @@ static int wcs_re_match_2_internal PARAMS ((struct re_pattern_buffer *bufp, wchar_t *string1, int size1, wchar_t *string2, int size2, int *mbs_offset1, int *mbs_offset2)); -static int byte_re_search_2 PARAMS ((struct re_pattern_buffer *bufp, - const char *string1, int size1, - const char *string2, int size2, - int startpos, int range, - struct re_registers *regs, int stop)); static int wcs_re_search_2 PARAMS ((struct re_pattern_buffer *bufp, const char *string1, int size1, const char *string2, int size2, int startpos, int range, struct re_registers *regs, int stop)); -static int byte_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp)); static int wcs_re_compile_fastmap PARAMS ((struct re_pattern_buffer *bufp)); - +#endif /* These are the command codes that appear in compiled regular expressions. Some opcodes are followed by argument bytes. A @@ -611,29 +615,31 @@ typedef enum # define PREFIX(name) byte_##name # define ARG_PREFIX(name) name # define PUT_CHAR(c) putchar (c) -#elif defined WCHAR -# define CHAR_T wchar_t -# define UCHAR_T wchar_t -# define COMPILED_BUFFER_VAR wc_buffer -# define OFFSET_ADDRESS_SIZE 1 /* the size which STORE_NUMBER macro use */ -# define CHAR_CLASS_SIZE ((__alignof__(wctype_t)+sizeof(wctype_t))/sizeof(CHAR_T)+1) -# define PREFIX(name) wcs_##name -# define ARG_PREFIX(name) c##name -/* Should we use wide stream?? */ -# define PUT_CHAR(c) printf ("%C", c); -# define TRUE 1 -# define FALSE 0 #else -# ifdef MBS_SUPPORT -# define WCHAR +# ifdef WCHAR +# define CHAR_T wchar_t +# define UCHAR_T wchar_t +# define COMPILED_BUFFER_VAR wc_buffer +# define OFFSET_ADDRESS_SIZE 1 /* the size which STORE_NUMBER macro use */ +# define CHAR_CLASS_SIZE ((__alignof__(wctype_t)+sizeof(wctype_t))/sizeof(CHAR_T)+1) +# define PREFIX(name) wcs_##name +# define ARG_PREFIX(name) c##name +/* Should we use wide stream?? */ +# define PUT_CHAR(c) printf ("%C", c); +# define TRUE 1 +# define FALSE 0 +# else +# ifdef MBS_SUPPORT +# define WCHAR +# define INSIDE_RECURSION +# include "regex.c" +# undef INSIDE_RECURSION +# endif +# define BYTE # define INSIDE_RECURSION # include "regex.c" # undef INSIDE_RECURSION # endif -# define BYTE -# define INSIDE_RECURSION -# include "regex.c" -# undef INSIDE_RECURSION #endif #ifdef INSIDE_RECURSION @@ -5076,16 +5082,35 @@ weak_alias (__re_search_2, re_search_2) #endif #ifdef WCHAR -# define FREE_WCS_BUFFERS() \ - do { \ - FREE_VAR (string1); \ - FREE_VAR (string2); \ - FREE_VAR (mbs_offset1); \ - FREE_VAR (mbs_offset2); \ +# define MAX_ALLOCA_SIZE 2000 + +# define FREE_WCS_BUFFERS() \ + do { \ + if (size1 > MAX_ALLOCA_SIZE) \ + { \ + free (wcs_string1); \ + free (mbs_offset1); \ + } \ + else \ + { \ + FREE_VAR (wcs_string1); \ + FREE_VAR (mbs_offset1); \ + } \ + if (size2 > MAX_ALLOCA_SIZE) \ + { \ + free (wcs_string2); \ + free (mbs_offset2); \ + } \ + else \ + { \ + FREE_VAR (wcs_string2); \ + FREE_VAR (mbs_offset2); \ + } \ } while (0) #endif + static int PREFIX(re_search_2) (bufp, string1, size1, string2, size2, startpos, range, regs, stop) @@ -5160,36 +5185,72 @@ PREFIX(re_search_2) (bufp, string1, size1, string2, size2, startpos, range, fill them with converted string. */ if (size1 != 0) { - wcs_string1 = REGEX_TALLOC (size1 + 1, CHAR_T); - mbs_offset1 = REGEX_TALLOC (size1 + 1, int); - is_binary = REGEX_TALLOC (size1 + 1, char); + 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) { - FREE_VAR (wcs_string1); - FREE_VAR (mbs_offset1); - FREE_VAR (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'; /* for a sentinel */ - FREE_VAR (is_binary); + if (size1 > MAX_ALLOCA_SIZE) + free (is_binary); + else + FREE_VAR (is_binary); } if (size2 != 0) { - wcs_string2 = REGEX_TALLOC (size2 + 1, CHAR_T); - mbs_offset2 = REGEX_TALLOC (size2 + 1, int); - is_binary = REGEX_TALLOC (size2 + 1, char); + 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 (); - FREE_VAR (is_binary); + 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'; /* for a sentinel */ - FREE_VAR (is_binary); + if (size2 > MAX_ALLOCA_SIZE) + free (is_binary); + else + FREE_VAR (is_binary); } #endif /* WCHAR */ |