return (char*) s + sl - pl;
}
-bool startswith(const char *s, const char *prefix) {
- size_t sl, pl;
+char* startswith(const char *s, const char *prefix) {
+ const char *a, *b;
assert(s);
assert(prefix);
- sl = strlen(s);
- pl = strlen(prefix);
-
- if (pl == 0)
- return true;
-
- if (sl < pl)
- return false;
+ a = s, b = prefix;
+ for (;;) {
+ if (*b == 0)
+ return (char*) a;
+ if (*a != *b)
+ return NULL;
- return memcmp(s, prefix, pl) == 0;
+ a++, b++;
+ }
}
-bool startswith_no_case(const char *s, const char *prefix) {
- size_t sl, pl;
- unsigned i;
+char* startswith_no_case(const char *s, const char *prefix) {
+ const char *a, *b;
assert(s);
assert(prefix);
- sl = strlen(s);
- pl = strlen(prefix);
-
- if (pl == 0)
- return true;
-
- if (sl < pl)
- return false;
-
- for(i = 0; i < pl; ++i)
- if (tolower(s[i]) != tolower(prefix[i]))
- return false;
+ a = s, b = prefix;
+ for (;;) {
+ if (*b == 0)
+ return (char*) a;
+ if (tolower(*a) != tolower(*b))
+ return NULL;
- return true;
+ a++, b++;
+ }
}
bool first_word(const char *s, const char *word) {
}
char *endswith(const char *s, const char *postfix);
-bool startswith(const char *s, const char *prefix);
-bool startswith_no_case(const char *s, const char *prefix);
+char *startswith(const char *s, const char *prefix);
+char *startswith_no_case(const char *s, const char *prefix);
bool first_word(const char *s, const char *word);