remove history item given by its position");
static PyObject *
py_replace_history(PyObject *self, PyObject *args)
{
int entry_number;
PyObject *line;
PyObject *encoded;
HIST_ENTRY *old_entry;
if (!PyArg_ParseTuple(args, "iU:replace_history_item", &entry_number,
&line)) {
return NULL;
}
if (entry_number < 0) {
PyErr_SetString(PyExc_ValueError,
"History index cannot be negative");
return NULL;
}
encoded = encode(line);
if (encoded == NULL) {
return NULL;
}
old_entry = replace_history_entry(entry_number, PyBytes_AS_STRING(encoded), (void *)NULL);
Py_DECREF(encoded);
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 */
_py_free_history_entry(old_entry);
Py_RETURN_NONE;
}
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;
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_RETURN_NONE;
}
int _el_display_last_hist()
{
if (where_history() < history_length()) {
if (!_el_w2mb(_el_line_buffer, &rl_line_buffer)) {
return -1;
}
replace_history_entry(where_history(), rl_line_buffer, NULL);
_el_history_set_pos(history_length() + 1);
_el_display_history();
}
return 0;
}
int _el_display_first_hist()
{
if (where_history() > 0) {
if (!_el_w2mb(_el_line_buffer, &rl_line_buffer)) {
return -1;
}
replace_history_entry(where_history(), rl_line_buffer, NULL);
_el_history_set_pos(1);
_el_display_history();
}
return 0;
}
int _el_display_prev_hist()
{
if (where_history() > 0) {
if (!_el_w2mb(_el_line_buffer, &rl_line_buffer)) {
return -1;
}
replace_history_entry(where_history(), rl_line_buffer, NULL);
_el_previous_history();
_el_display_history();
}
return 0;
}
int _el_display_next_hist()
{
if (where_history() < (history_length() - 1)) {
if (!_el_w2mb(_el_line_buffer, &rl_line_buffer)) {
return -1;
}
replace_history_entry(where_history(), rl_line_buffer, NULL);
next_history();
_el_display_history();
}
return 0;
}
/* Perhaps put back the current line if it has changed. */
int
rl_maybe_replace_line (void)
{
HIST_ENTRY *temp;
temp = current_history ();
/* If the current line has changed, save the changes. */
if (temp && ((UNDO_LIST *)(temp->data) != rl_undo_list))
{
temp = replace_history_entry (where_history (), rl_line_buffer, (histdata_t)rl_undo_list);
xfree (temp->line);
FREE (temp->timestamp);
xfree (temp);
}
return 0;
}
