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125 lines
3.2 KiB
C
125 lines
3.2 KiB
C
/* stringlib: partition implementation */
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#ifndef STRINGLIB_FASTSEARCH_H
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# error must include "stringlib/fastsearch.h" before including this module
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#endif
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#if !STRINGLIB_MUTABLE && !defined(STRINGLIB_GET_EMPTY)
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# error "STRINGLIB_GET_EMPTY must be defined if STRINGLIB_MUTABLE is zero"
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#endif
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Py_LOCAL_INLINE(PyObject*)
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STRINGLIB(partition)(PyObject* str_obj,
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const STRINGLIB_CHAR* str, Py_ssize_t str_len,
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PyObject* sep_obj,
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const STRINGLIB_CHAR* sep, Py_ssize_t sep_len)
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{
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PyObject* out;
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Py_ssize_t pos;
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if (sep_len == 0) {
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PyErr_SetString(PyExc_ValueError, "empty separator");
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return NULL;
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}
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out = PyTuple_New(3);
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if (!out)
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return NULL;
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pos = FASTSEARCH(str, str_len, sep, sep_len, -1, FAST_SEARCH);
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if (pos < 0) {
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#if STRINGLIB_MUTABLE
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PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, str_len));
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PyTuple_SET_ITEM(out, 1, STRINGLIB_NEW(NULL, 0));
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PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(NULL, 0));
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if (PyErr_Occurred()) {
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Py_DECREF(out);
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return NULL;
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}
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#else
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Py_INCREF(str_obj);
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PyTuple_SET_ITEM(out, 0, (PyObject*) str_obj);
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PyObject *empty = (PyObject*)STRINGLIB_GET_EMPTY();
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assert(empty != NULL);
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Py_INCREF(empty);
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PyTuple_SET_ITEM(out, 1, empty);
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Py_INCREF(empty);
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PyTuple_SET_ITEM(out, 2, empty);
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#endif
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return out;
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}
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PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, pos));
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Py_INCREF(sep_obj);
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PyTuple_SET_ITEM(out, 1, sep_obj);
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pos += sep_len;
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PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str + pos, str_len - pos));
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if (PyErr_Occurred()) {
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Py_DECREF(out);
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return NULL;
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}
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return out;
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}
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Py_LOCAL_INLINE(PyObject*)
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STRINGLIB(rpartition)(PyObject* str_obj,
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const STRINGLIB_CHAR* str, Py_ssize_t str_len,
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PyObject* sep_obj,
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const STRINGLIB_CHAR* sep, Py_ssize_t sep_len)
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{
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PyObject* out;
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Py_ssize_t pos;
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if (sep_len == 0) {
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PyErr_SetString(PyExc_ValueError, "empty separator");
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return NULL;
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}
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out = PyTuple_New(3);
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if (!out)
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return NULL;
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pos = FASTSEARCH(str, str_len, sep, sep_len, -1, FAST_RSEARCH);
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if (pos < 0) {
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#if STRINGLIB_MUTABLE
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PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(NULL, 0));
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PyTuple_SET_ITEM(out, 1, STRINGLIB_NEW(NULL, 0));
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PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str, str_len));
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if (PyErr_Occurred()) {
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Py_DECREF(out);
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return NULL;
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}
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#else
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PyObject *empty = (PyObject*)STRINGLIB_GET_EMPTY();
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assert(empty != NULL);
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Py_INCREF(empty);
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PyTuple_SET_ITEM(out, 0, empty);
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Py_INCREF(empty);
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PyTuple_SET_ITEM(out, 1, empty);
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Py_INCREF(str_obj);
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PyTuple_SET_ITEM(out, 2, (PyObject*) str_obj);
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#endif
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return out;
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}
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PyTuple_SET_ITEM(out, 0, STRINGLIB_NEW(str, pos));
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Py_INCREF(sep_obj);
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PyTuple_SET_ITEM(out, 1, sep_obj);
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pos += sep_len;
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PyTuple_SET_ITEM(out, 2, STRINGLIB_NEW(str + pos, str_len - pos));
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if (PyErr_Occurred()) {
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Py_DECREF(out);
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return NULL;
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}
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return out;
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}
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