release-1.10release-1.8release-1.9
Last change
on this file since f2a96c0 was
d427f08,
checked in by Nelson Elhage <nelhage@mit.edu>, 13 years ago
|
Use G_GNUC_WARN_UNUSED_RESULT
Have gcc warn us when we ignore the result of a function that requires
the caller to free the result, or an initilization function that can
fail. This might help (slightly) with preventing leaks and segfaults.
Additionally changed some functions that should never fail to not
return values. (The owl_list_* functions changed only fail if
list->size < 0, which we assume is not the case elsewhere.)
|
-
Property mode set to
100644
|
File size:
1.7 KB
|
Rev | Line | |
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[7d4fbcd] | 1 | #include <string.h> |
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| 2 | #include "owl.h" |
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| 3 | |
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[e187445] | 4 | void owl_regex_init(owl_regex *re) |
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| 5 | { |
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[7d4fbcd] | 6 | re->negate=0; |
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| 7 | re->string=NULL; |
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| 8 | } |
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| 9 | |
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[e19eb97] | 10 | int owl_regex_create(owl_regex *re, const char *string) |
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[e187445] | 11 | { |
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[7d4fbcd] | 12 | int ret; |
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[554a2b8] | 13 | char buff1[LINE]; |
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[e19eb97] | 14 | const char *ptr; |
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[7d4fbcd] | 15 | |
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[d4927a7] | 16 | re->string=g_strdup(string); |
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[7d4fbcd] | 17 | |
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| 18 | ptr=string; |
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| 19 | re->negate=0; |
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| 20 | if (string[0]=='!') { |
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| 21 | ptr++; |
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| 22 | re->negate=1; |
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| 23 | } |
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| 24 | |
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| 25 | /* set the regex */ |
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| 26 | ret=regcomp(&(re->re), ptr, REG_EXTENDED|REG_ICASE); |
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| 27 | if (ret) { |
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| 28 | regerror(ret, NULL, buff1, LINE); |
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[554a2b8] | 29 | owl_function_makemsg("Error in regular expression: %s", buff1); |
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[ddbbcffa] | 30 | g_free(re->string); |
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[a6560fe] | 31 | re->string=NULL; |
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[7d4fbcd] | 32 | return(-1); |
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| 33 | } |
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| 34 | |
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| 35 | return(0); |
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| 36 | } |
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| 37 | |
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[e19eb97] | 38 | int owl_regex_create_quoted(owl_regex *re, const char *string) |
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[bc08664] | 39 | { |
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| 40 | char *quoted; |
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[d427f08] | 41 | int ret; |
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[bc08664] | 42 | |
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[d427f08] | 43 | quoted = owl_text_quote(string, OWL_REGEX_QUOTECHARS, OWL_REGEX_QUOTEWITH); |
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| 44 | ret = owl_regex_create(re, quoted); |
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[ddbbcffa] | 45 | g_free(quoted); |
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[d427f08] | 46 | return ret; |
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[bc08664] | 47 | } |
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| 48 | |
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[89b2daf] | 49 | int owl_regex_compare(const owl_regex *re, const char *string, int *start, int *end) |
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[e187445] | 50 | { |
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[7d4fbcd] | 51 | int out, ret; |
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[41c9a96] | 52 | regmatch_t match; |
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[7d4fbcd] | 53 | |
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| 54 | /* if the regex is not set we match */ |
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| 55 | if (!owl_regex_is_set(re)) { |
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| 56 | return(0); |
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| 57 | } |
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| 58 | |
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[41c9a96] | 59 | ret=regexec(&(re->re), string, 1, &match, 0); |
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[7d4fbcd] | 60 | out=ret; |
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| 61 | if (re->negate) { |
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| 62 | out=!out; |
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[41c9a96] | 63 | match.rm_so = 0; |
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| 64 | match.rm_eo = strlen(string); |
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[7d4fbcd] | 65 | } |
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[41c9a96] | 66 | if (start != NULL) *start = match.rm_so; |
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| 67 | if (end != NULL) *end = match.rm_eo; |
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[7d4fbcd] | 68 | return(out); |
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| 69 | } |
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| 70 | |
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[89b2daf] | 71 | int owl_regex_is_set(const owl_regex *re) |
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[e187445] | 72 | { |
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[7d4fbcd] | 73 | if (re->string) return(1); |
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| 74 | return(0); |
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| 75 | } |
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| 76 | |
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[89b2daf] | 77 | const char *owl_regex_get_string(const owl_regex *re) |
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[e187445] | 78 | { |
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[7d4fbcd] | 79 | return(re->string); |
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| 80 | } |
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| 81 | |
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[89b2daf] | 82 | void owl_regex_copy(const owl_regex *a, owl_regex *b) |
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[e187445] | 83 | { |
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[41c9a96] | 84 | owl_regex_create(b, a->string); |
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[7d4fbcd] | 85 | } |
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| 86 | |
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[5cbc929] | 87 | void owl_regex_cleanup(owl_regex *re) |
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[e187445] | 88 | { |
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[cb769bb] | 89 | if (re->string) { |
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[ddbbcffa] | 90 | g_free(re->string); |
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[cb769bb] | 91 | regfree(&(re->re)); |
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| 92 | } |
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[7d4fbcd] | 93 | } |
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