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readline module cleanup 

fixed indention to tabs
use Py_RETURN_NONE macro
added more error checks to on_completion_display_matches_hook

open question: Does PyList_SetItem(l, i, o) steal a reference to o in the case of an error?
This commit is contained in:
Christian Heimes 2007-11-12 18:58:08 +00:00
parent edc526c161
commit 1bc4af4bdd
1 changed files with 86 additions and 95 deletions
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181
Modules/readline.c
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@ -59,8 +59,7 @@ parse_and_bind(PyObject *self, PyObject *args)
strcpy(copy, s);
rl_parse_and_bind(copy);
free(copy); /* Free the copy */
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_parse_and_bind,
@ -79,8 +78,7 @@ read_init_file(PyObject *self, PyObject *args)
errno = rl_read_init_file(s);
if (errno)
return PyErr_SetFromErrno(PyExc_IOError);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_read_init_file,
@ -100,8 +98,7 @@ read_history_file(PyObject *self, PyObject *args)
errno = read_history(s);
if (errno)
return PyErr_SetFromErrno(PyExc_IOError);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
static int _history_length = -1; /* do not truncate history by default */
@ -124,8 +121,7 @@ write_history_file(PyObject *self, PyObject *args)
history_truncate_file(s, _history_length);
if (errno)
return PyErr_SetFromErrno(PyExc_IOError);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_write_history_file,
@ -143,8 +139,7 @@ set_history_length(PyObject *self, PyObject *args)
if (!PyArg_ParseTuple(args, "i:set_history_length", &length))
return NULL;
_history_length = length;
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(set_history_length_doc,
@ -195,8 +190,7 @@ set_hook(const char *funcname, PyObject **hook_var, PyObject *args)
PyErr_SetString(PyExc_TypeError, buf);
return NULL;
}
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
@ -218,7 +212,7 @@ set_completion_display_matches_hook(PyObject *self, PyObject *args)
/* We cannot set this hook globally, since it replaces the
default completion display. */
rl_completion_display_matches_hook =
completion_display_matches_hook ?
completion_display_matches_hook ?
(rl_compdisp_func_t *)on_completion_display_matches_hook : 0;
#endif
return result;
@ -325,8 +319,7 @@ set_completer_delims(PyObject *self, PyObject *args)
}
free((void*)rl_completer_word_break_characters);
rl_completer_word_break_characters = strdup(break_chars);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_set_completer_delims,
@ -336,32 +329,31 @@ set the readline word delimiters for tab-completion");
static PyObject *
py_remove_history(PyObject *self, PyObject *args)
{
int entry_number;
HIST_ENTRY *entry;
int entry_number;
HIST_ENTRY *entry;
if (!PyArg_ParseTuple(args, "i:remove_history", &entry_number))
return NULL;
if (entry_number < 0) {
PyErr_SetString(PyExc_ValueError,
"History index cannot be negative");
return NULL;
}
entry = remove_history(entry_number);
if (!entry) {
PyErr_Format(PyExc_ValueError,
"No history item at position %d",
entry_number);
return NULL;
}
/* free memory allocated for the history entry */
if (entry->line)
free(entry->line);
if (entry->data)
free(entry->data);
free(entry);
if (!PyArg_ParseTuple(args, "i:remove_history", &entry_number))
return NULL;
if (entry_number < 0) {
PyErr_SetString(PyExc_ValueError,
"History index cannot be negative");
return NULL;
}
entry = remove_history(entry_number);
if (!entry) {
PyErr_Format(PyExc_ValueError,
"No history item at position %d",
entry_number);
return NULL;
}
/* free memory allocated for the history entry */
if (entry->line)
free(entry->line);
if (entry->data)
free(entry->data);
free(entry);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_remove_history,
@ -371,34 +363,34 @@ remove history item given by its position");
static PyObject *
py_replace_history(PyObject *self, PyObject *args)
{
int entry_number;
char *line;
HIST_ENTRY *old_entry;
int entry_number;
char *line;
HIST_ENTRY *old_entry;
if (!PyArg_ParseTuple(args, "is:replace_history", &entry_number, &line)) {
return NULL;
}
if (entry_number < 0) {
PyErr_SetString(PyExc_ValueError,
"History index cannot be negative");
return NULL;
}
old_entry = replace_history_entry(entry_number, line, (void *)NULL);
if (!old_entry) {
PyErr_Format(PyExc_ValueError,
"No history item at position %d",
entry_number);
return NULL;
}
/* free memory allocated for the old history entry */
if (old_entry->line)
free(old_entry->line);
if (old_entry->data)
free(old_entry->data);
free(old_entry);
if (!PyArg_ParseTuple(args, "is:replace_history", &entry_number,
&line)) {
return NULL;
}
if (entry_number < 0) {
PyErr_SetString(PyExc_ValueError,
"History index cannot be negative");
return NULL;
}
old_entry = replace_history_entry(entry_number, line, (void *)NULL);
if (!old_entry) {
PyErr_Format(PyExc_ValueError,
"No history item at position %d",
entry_number);
return NULL;
}
/* free memory allocated for the old history entry */
if (old_entry->line)
free(old_entry->line);
if (old_entry->data)
free(old_entry->data);
free(old_entry);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_replace_history,
@ -416,8 +408,7 @@ py_add_history(PyObject *self, PyObject *args)
return NULL;
}
add_history(line);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_add_history,
@ -458,8 +449,7 @@ static PyObject *
get_completer(PyObject *self, PyObject *noargs)
{
if (completer == NULL) {
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
Py_INCREF(completer);
return completer;
@ -483,8 +473,7 @@ get_history_item(PyObject *self, PyObject *args)
if ((hist_ent = history_get(idx)))
return PyString_FromString(hist_ent->line);
else {
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
}
@ -530,8 +519,7 @@ static PyObject *
py_clear_history(PyObject *self, PyObject *noarg)
{
clear_history();
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_clear_history,
@ -549,8 +537,7 @@ insert_text(PyObject *self, PyObject *args)
if (!PyArg_ParseTuple(args, "s:insert_text", &s))
return NULL;
rl_insert_text(s);
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_insert_text,
@ -564,8 +551,7 @@ static PyObject *
redisplay(PyObject *self, PyObject *noarg)
{
rl_redisplay();
Py_INCREF(Py_None);
return Py_None;
Py_RETURN_NONE;
}
PyDoc_STRVAR(doc_redisplay,
@ -591,9 +577,9 @@ static struct PyMethodDef readline_methods[] =
METH_VARARGS, doc_get_history_item},
{"get_current_history_length", (PyCFunction)get_current_history_length,
METH_NOARGS, doc_get_current_history_length},
{"set_history_length", set_history_length,
{"set_history_length", set_history_length,
METH_VARARGS, set_history_length_doc},
{"get_history_length", get_history_length,
{"get_history_length", get_history_length,
METH_NOARGS, get_history_length_doc},
{"set_completer", set_completer, METH_VARARGS, doc_set_completer},
{"get_completer", get_completer, METH_NOARGS, doc_get_completer},
@ -605,8 +591,8 @@ static struct PyMethodDef readline_methods[] =
{"set_completer_delims", set_completer_delims,
METH_VARARGS, doc_set_completer_delims},
{"add_history", py_add_history, METH_VARARGS, doc_add_history},
{"remove_history_item", py_remove_history, METH_VARARGS, doc_remove_history},
{"replace_history_item", py_replace_history, METH_VARARGS, doc_replace_history},
{"remove_history_item", py_remove_history, METH_VARARGS, doc_remove_history},
{"replace_history_item", py_replace_history, METH_VARARGS, doc_replace_history},
{"get_completer_delims", get_completer_delims,
METH_NOARGS, doc_get_completer_delims},
@ -633,7 +619,7 @@ on_hook(PyObject *func)
int result = 0;
if (func != NULL) {
PyObject *r;
#ifdef WITH_THREAD
#ifdef WITH_THREAD
PyGILState_STATE gilstate = PyGILState_Ensure();
#endif
r = PyObject_CallFunction(func, NULL);
@ -652,7 +638,7 @@ on_hook(PyObject *func)
PyErr_Clear();
Py_XDECREF(r);
done:
#ifdef WITH_THREAD
#ifdef WITH_THREAD
PyGILState_Release(gilstate);
#endif
return result;
@ -682,34 +668,39 @@ on_completion_display_matches_hook(char **matches,
int num_matches, int max_length)
{
int i;
PyObject *m, *s;
PyObject *r;
#ifdef WITH_THREAD
PyObject *m=NULL, *s=NULL, *r=NULL;
#ifdef WITH_THREAD
PyGILState_STATE gilstate = PyGILState_Ensure();
#endif
m = PyList_New(num_matches);
if (m == NULL)
goto error;
for (i = 0; i < num_matches; i++) {
s = PyString_FromString(matches[i+1]);
PyList_SetItem(m, i, s);
if (s == NULL)
goto error;
if (PyList_SetItem(m, i, s) == -1)
goto error;
}
r = PyObject_CallFunction(completion_display_matches_hook,
"sOi", matches[0], m, max_length);
Py_DECREF(m);
Py_DECREF(m), m=NULL;
if (r == NULL ||
(r != Py_None && PyInt_AsLong(r) == -1 && PyErr_Occurred())) {
goto error;
}
Py_XDECREF(r), r=NULL;
Py_DECREF(r);
goto done;
error:
PyErr_Clear();
Py_XDECREF(r);
done:
#ifdef WITH_THREAD
if (0) {
error:
PyErr_Clear();
Py_XDECREF(m);
Py_XDECREF(r);
}
#ifdef WITH_THREAD
PyGILState_Release(gilstate);
#endif
}