annotate Objects/stringlib/count.h @ 55725:ec8d25e0500a legacy-trunk

#6677: mention "deleting" as an alias for removing files.
author Georg Brandl <georg@python.org>
date Mon, 24 Aug 2009 17:24:27 +0000
parents 304bea8731d2
children 66f1d4a4c799
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
38400
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
1 /* stringlib: count implementation */
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
2
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
3 #ifndef STRINGLIB_COUNT_H
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
4 #define STRINGLIB_COUNT_H
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
5
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
6 #ifndef STRINGLIB_FASTSEARCH_H
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
7 #error must include "stringlib/fastsearch.h" before including this module
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
8 #endif
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
9
38440
5b0753b9d16a needforspeed: replace improvements, changed to Py_LOCAL_INLINE
Fredrik Lundh <fredrik@pythonware.com>
parents: 38400
diff changeset
10 Py_LOCAL_INLINE(Py_ssize_t)
38400
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
11 stringlib_count(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
12 const STRINGLIB_CHAR* sub, Py_ssize_t sub_len)
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
13 {
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
14 Py_ssize_t count;
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
15
49308
304bea8731d2 #3967: Correct a crash in count() and find() methods of string-like objects.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 38516
diff changeset
16 if (str_len < 0)
304bea8731d2 #3967: Correct a crash in count() and find() methods of string-like objects.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 38516
diff changeset
17 return 0; /* start > len(str) */
304bea8731d2 #3967: Correct a crash in count() and find() methods of string-like objects.
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 38516
diff changeset
18 if (sub_len == 0)
38400
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
19 return str_len + 1;
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
20
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
21 count = fastsearch(str, str_len, sub, sub_len, FAST_COUNT);
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
22
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
23 if (count < 0)
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
24 count = 0; /* no match */
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
25
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
26 return count;
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
27 }
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
28
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
29 #endif
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
30
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
31 /*
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
32 Local variables:
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
33 c-basic-offset: 4
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
34 indent-tabs-mode: nil
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
35 End:
33c328896f52 needforspeed: stringlib refactoring, continued. added count and
Fredrik Lundh <fredrik@pythonware.com>
parents:
diff changeset
36 */