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needforspeedindeed: use fastsearch also for __contains__

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This commit is contained in:
Fredrik Lundh 2006-05-24 15:11:01 +00:00
parent 6471ee4f18
commit d5e0dc51cf
1 changed files with 19 additions and 4 deletions
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23
Objects/unicodeobject.c
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@ -3854,12 +3854,16 @@ int PyUnicode_EncodeDecimal(Py_UNICODE *s,
moore and horspool, with a few more bells and whistles on the top.
for some more background, see: http://effbot.org/stringlib */
/* note: fastsearch may access s[n], which isn't a problem when using
Python's ordinary string types. also, the count mode returns -1 if
there cannot possible be a match in the target string, and 0 if it
has actually checked for matches. */
#define FAST_COUNT 0
#define FAST_SEARCH 1
LOCAL(int) fastsearch(Py_UNICODE* s, Py_ssize_t n,
Py_UNICODE* p, Py_ssize_t m,
int mode)
LOCAL(Py_ssize_t)
fastsearch(Py_UNICODE* s, Py_ssize_t n, Py_UNICODE* p, Py_ssize_t m, int mode)
{
long mask;
int skip, count = 0;
@ -3872,7 +3876,7 @@ LOCAL(int) fastsearch(Py_UNICODE* s, Py_ssize_t n,
/* look for special cases */
if (m <= 1) {
if (m < 0)
if (m <= 0)
return -1;
/* use special case for 1-character strings */
if (mode == FAST_COUNT) {
@ -5142,6 +5146,9 @@ int PyUnicode_Contains(PyObject *container,
PyUnicodeObject *u, *v;
int result;
Py_ssize_t size;
#ifdef USE_FAST
Py_ssize_t pos;
#endif
/* Coerce the two arguments */
v = (PyUnicodeObject *) PyUnicode_FromObject(element);
@ -5163,6 +5170,13 @@ int PyUnicode_Contains(PyObject *container,
goto done;
}
#ifdef USE_FAST
pos = fastsearch(
PyUnicode_AS_UNICODE(u), PyUnicode_GET_SIZE(u),
PyUnicode_AS_UNICODE(v), size, FAST_SEARCH
);
result = (pos != -1);
#else
result = 0;
if (size == 1) {
@ -5184,6 +5198,7 @@ int PyUnicode_Contains(PyObject *container,
break;
}
}
#endif
done:
Py_DECREF(u);