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Guido van Rossum 1997-07-17 22:41:38 +00:00
parent 9e18ec7dc9
commit 74fb303997
3 changed files with 165 additions and 32 deletions
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131
Modules/reopmodule.c
View file

@ -43,6 +43,13 @@ PERFORMANCE OF THIS SOFTWARE.
static PyObject *ReopError; /* Exception */
#define IGNORECASE 0x01
#define MULTILINE 0x02
#define DOTALL 0x04
#define VERBOSE 0x08
static char *reop_casefold;
static PyObject *
makeresult(regs, num_regs)
struct re_registers *regs;
@ -90,6 +97,10 @@ reop_match(self, args)
int flags, pos, result;
struct re_pattern_buffer bufp;
struct re_registers re_regs;
PyObject *modules = NULL;
PyObject *reopmodule = NULL;
PyObject *reopdict = NULL;
PyObject *casefold = NULL;
if (!PyArg_Parse(args, "(s#iiis#is#i)",
&(bufp.buffer), &(bufp.allocated),
@ -102,20 +113,44 @@ reop_match(self, args)
/* XXX sanity-check the input data */
bufp.used=bufp.allocated;
bufp.translate=NULL;
if (flags & IGNORECASE)
{
if ((modules = PyImport_GetModuleDict()) == NULL)
return NULL;
if ((reopmodule = PyDict_GetItemString(modules,
"reop")) == NULL)
return NULL;
if ((reopdict = PyModule_GetDict(reopmodule)) == NULL)
return NULL;
if ((casefold = PyDict_GetItemString(reopdict,
"casefold")) == NULL)
return NULL;
bufp.translate = PyString_AsString(casefold);
}
else
bufp.translate=NULL;
bufp.fastmap_accurate=1;
bufp.can_be_null=can_be_null;
bufp.uses_registers=1;
bufp.anchor=anchor;
for(i=0; i<bufp.num_registers; i++) {re_regs.start[i]=-1; re_regs.end[i]=-1;}
for(i=0; i<bufp.num_registers; i++) {
re_regs.start[i]=-1;
re_regs.end[i]=-1;
}
result = re_match(&bufp,
string, stringlen, pos,
&re_regs);
if (result < -1) {
/* Failure like stack overflow */
PyErr_SetString(ReopError, "match failure");
return NULL;
}
if (result == -1) {
@ -136,6 +171,10 @@ reop_search(self, args)
int flags, pos, result;
struct re_pattern_buffer bufp;
struct re_registers re_regs;
PyObject *modules = NULL;
PyObject *reopmodule = NULL;
PyObject *reopdict = NULL;
PyObject *casefold = NULL;
if (!PyArg_Parse(args, "(s#iiis#is#i)",
&(bufp.buffer), &(bufp.allocated),
@ -148,26 +187,51 @@ reop_search(self, args)
/* XXX sanity-check the input data */
bufp.used=bufp.allocated;
bufp.translate=NULL;
if (flags & IGNORECASE)
{
if ((modules = PyImport_GetModuleDict()) == NULL)
return NULL;
if ((reopmodule = PyDict_GetItemString(modules,
"reop")) == NULL)
return NULL;
if ((reopdict = PyModule_GetDict(reopmodule)) == NULL)
return NULL;
if ((casefold = PyDict_GetItemString(reopdict,
"casefold")) == NULL)
return NULL;
bufp.translate = PyString_AsString(casefold);
}
else
bufp.translate=NULL;
bufp.fastmap_accurate=1;
bufp.can_be_null=can_be_null;
bufp.uses_registers=1;
bufp.anchor=anchor;
for(i=0; i<bufp.num_registers; i++) {re_regs.start[i]=-1; re_regs.end[i]=-1;}
for(i = 0; i < bufp.num_registers; i++) {
re_regs.start[i] = -1;
re_regs.end[i] = -1;
}
result = re_search(&bufp,
string, stringlen, pos, stringlen-pos,
&re_regs);
if (result < -1) {
/* Failure like stack overflow */
PyErr_SetString(ReopError, "match failure");
return NULL;
}
if (result == -1) {
Py_INCREF(Py_None);
return Py_None;
}
return makeresult(&re_regs, bufp.num_registers);
}
@ -345,10 +409,13 @@ static struct PyMethodDef reop_global_methods[] = {
void
initreop()
{
PyObject *m, *d, *v;
PyObject *m, *d, *k, *v, *o;
int i;
char *s;
char j[2];
re_compile_initialize();
m = Py_InitModule("reop", reop_global_methods);
d = PyModule_GetDict(m);
@ -370,12 +437,64 @@ initreop()
else
s[i] = i;
}
if (PyDict_SetItemString(d, "casefold", v) < 0)
goto finally;
Py_DECREF(v);
/* Initialize the syntax table */
o = PyDict_New();
if (o == NULL)
goto finally;
j[1] = '\0';
for (i = 0; i < 256; i++)
{
j[0] = i;
k = PyString_FromStringAndSize(j, 1);
if (k == NULL)
goto finally;
v = PyInt_FromLong(re_syntax_table[i]);
if (v == NULL)
goto finally;
if (PyDict_SetItem(o, k, v) < 0)
goto finally;
Py_DECREF(k);
Py_DECREF(v);
}
if (PyDict_SetItemString(d, "syntax_table", o) < 0)
goto finally;
Py_DECREF(o);
v = PyInt_FromLong(Sword);
if (v == NULL)
goto finally;
if (PyDict_SetItemString(d, "word", v) < 0)
goto finally;
Py_DECREF(v);
v = PyInt_FromLong(Swhitespace);
if (v == NULL)
goto finally;
if (PyDict_SetItemString(d, "whitespace", v) < 0)
goto finally;
Py_DECREF(v);
v = PyInt_FromLong(Sdigit);
if (v == NULL)
goto finally;
if (PyDict_SetItemString(d, "digit", v) < 0)
goto finally;
Py_DECREF(v);
if (!PyErr_Occurred())
return;
finally:
Py_FatalError("can't initialize reop module");
}