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Add MG_MK_STR_N() and mg_str_starts_with()

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CL: Add MG_MK_STR_N() and mg_str_starts_with()

PUBLISHED_FROM=f01003efc6aa6ff45fa99c7ad6e5319f5002f22d
This commit is contained in:
Deomid Ryabkov 2018-10-29 14:42:32 +00:00 committed by Cesanta Bot
parent 220231e647
commit 91b57aa9a8
2 changed files with 12 additions and 0 deletions
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7
mongoose.c
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@ -1770,6 +1770,13 @@ struct mg_str mg_strstrip(struct mg_str s) {
}
return s;
}
int mg_str_starts_with(struct mg_str s, struct mg_str prefix) WEAK;
int mg_str_starts_with(struct mg_str s, struct mg_str prefix) {
const struct mg_str sp = MG_MK_STR_N(s.p, prefix.len);
if (s.len < prefix.len) return 0;
return (mg_strcmp(sp, prefix) == 0);
}
#ifdef MG_MODULE_LINES
#line 1 "common/str_util.c"
#endif

5
mongoose.h
View File

@ -2239,6 +2239,8 @@ struct mg_str mg_mk_str_n(const char *s, size_t len);
/* Macro for initializing mg_str. */
#define MG_MK_STR(str_literal) \
{ str_literal, sizeof(str_literal) - 1 }
#define MG_MK_STR_N(str_literal, len) \
{ str_literal, len }
#define MG_NULL_STR \
{ NULL, 0 }
@ -2286,6 +2288,9 @@ const char *mg_strstr(const struct mg_str haystack, const struct mg_str needle);
/* Strip whitespace at the start and the end of s */
struct mg_str mg_strstrip(struct mg_str s);
/* Returns 1 if s starts with the given prefix. */
int mg_str_starts_with(struct mg_str s, struct mg_str prefix);
#ifdef __cplusplus
}
#endif