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........
  r77461 | antoine.pitrou | 2010-01-13 08:55:48 +0100 (mer., 13 janv. 2010) | 5 lines

  Issue #7622: Improve the split(), rsplit(), splitlines() and replace()
  methods of bytes, bytearray and unicode objects by using a common
  implementation based on stringlib's fast search.  Patch by Florent Xicluna.
........
This commit is contained in:
Antoine Pitrou 2010-01-13 08:07:53 +00:00
parent 5efea0430c
commit f2c5484f9e
16 changed files with 1123 additions and 1418 deletions
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56
Objects/stringlib/find.h
View file

@ -19,7 +19,7 @@ stringlib_find(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
if (sub_len == 0)
return offset;
pos = fastsearch(str, str_len, sub, sub_len, FAST_SEARCH);
pos = fastsearch(str, str_len, sub, sub_len, -1, FAST_SEARCH);
if (pos >= 0)
pos += offset;
@ -39,7 +39,7 @@ stringlib_rfind(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
if (sub_len == 0)
return str_len + offset;
pos = fastsearch(str, str_len, sub, sub_len, FAST_RSEARCH);
pos = fastsearch(str, str_len, sub, sub_len, -1, FAST_RSEARCH);
if (pos >= 0)
pos += offset;
@ -47,22 +47,27 @@ stringlib_rfind(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
return pos;
}
/* helper macro to fixup start/end slice values */
#define ADJUST_INDICES(start, end, len) \
if (end > len) \
end = len; \
else if (end < 0) { \
end += len; \
if (end < 0) \
end = 0; \
} \
if (start < 0) { \
start += len; \
if (start < 0) \
start = 0; \
}
Py_LOCAL_INLINE(Py_ssize_t)
stringlib_find_slice(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
const STRINGLIB_CHAR* sub, Py_ssize_t sub_len,
Py_ssize_t start, Py_ssize_t end)
{
if (start < 0)
start += str_len;
if (start < 0)
start = 0;
if (end > str_len)
end = str_len;
if (end < 0)
end += str_len;
if (end < 0)
end = 0;
ADJUST_INDICES(start, end, str_len);
return stringlib_find(str + start, end - start, sub, sub_len, start);
}
@ -71,17 +76,7 @@ stringlib_rfind_slice(const STRINGLIB_CHAR* str, Py_ssize_t str_len,
const STRINGLIB_CHAR* sub, Py_ssize_t sub_len,
Py_ssize_t start, Py_ssize_t end)
{
if (start < 0)
start += str_len;
if (start < 0)
start = 0;
if (end > str_len)
end = str_len;
if (end < 0)
end += str_len;
if (end < 0)
end = 0;
ADJUST_INDICES(start, end, str_len);
return stringlib_rfind(str + start, end - start, sub, sub_len, start);
}
@ -96,9 +91,9 @@ stringlib_contains_obj(PyObject* str, PyObject* sub)
) != -1;
}
#endif /* STRINGLIB_STR */
#endif /* STRINGLIB_WANT_CONTAINS_OBJ */
#ifdef FROM_UNICODE
#if STRINGLIB_IS_UNICODE
/*
This function is a helper for the "find" family (find, rfind, index,
@ -146,13 +141,6 @@ _ParseTupleFinds (PyObject *args, PyObject **substring,
return 1;
}
#endif /* FROM_UNICODE */
#endif /* STRINGLIB_IS_UNICODE */
#endif /* STRINGLIB_FIND_H */
/*
Local variables:
c-basic-offset: 4
indent-tabs-mode: nil
End:
*/