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1 /* stringlib: count implementation */
2 
3 #ifndef STRINGLIB_COUNT_H
4 #define STRINGLIB_COUNT_H
5 
6 #ifndef STRINGLIB_FASTSEARCH_H
7 #error must include "stringlib/fastsearch.h" before including this module
8 #endif
9 
10 Py_LOCAL_INLINE(Py_ssize_t)
stringlib_count(const STRINGLIB_CHAR * str,Py_ssize_t str_len,const STRINGLIB_CHAR * sub,Py_ssize_t sub_len,Py_ssize_t maxcount)11 stringlib_count(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
12                 const STRINGLIB_CHAR* sub, Py_ssize_t sub_len,
13                 Py_ssize_t maxcount)
14 {
15     Py_ssize_t count;
16 
17     if (str_len < 0)
18         return 0; /* start > len(str) */
19     if (sub_len == 0)
20         return (str_len < maxcount) ? str_len + 1 : maxcount;
21 
22     count = fastsearch(str, str_len, sub, sub_len, maxcount, FAST_COUNT);
23 
24     if (count < 0)
25         return 0; /* no match */
26 
27     return count;
28 }
29 
30 #endif
31