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Command history: allow "next history" to jump back to last msg in

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history if we already went over it with "prev history" once.


git-svn-id: http://svn.irssi.org/repos/irssi/trunk@1365 dbcabf3a-b0e7-0310-adc4-f8d773084564
This commit is contained in:
Timo Sirainen 2001-03-08 00:45:56 +00:00 • committed by cras
commit f5d67dcb5c
3 changed files with 77 additions and 51 deletions
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104
src/fe-common/core/command-history.c
View file

@ -28,50 +28,61 @@
#include "window-items.h"
/* command history */
static GList *cmdhist, *histpos;
static int histlines;
static GList *history, *history_pos;
static int history_lines, history_over_counter;
static int window_history;
void command_history_add(WINDOW_REC *window, const char *text)
{
GList **pcmdhist, *link;
int *phistlines;
GList **phistory, *link;
int *phistory_lines;
g_return_if_fail(text != NULL);
if (window_history) {
/* window specific command history */
pcmdhist = &window->cmdhist;
phistlines = &window->histlines;
phistory = &window->history;
phistory_lines = &window->history_lines;
} else {
/* global command history */
pcmdhist = &cmdhist;
phistlines = &histlines;
phistory = &history;
phistory_lines = &history_lines;
}
if (settings_get_int("max_command_history") < 1 || *phistlines < settings_get_int("max_command_history"))
(*phistlines)++;
if (settings_get_int("max_command_history") < 1 || *phistory_lines < settings_get_int("max_command_history"))
(*phistory_lines)++;
else {
link = *pcmdhist;
link = *phistory;
g_free(link->data);
*pcmdhist = g_list_remove_link(*pcmdhist, link);
*phistory = g_list_remove_link(*phistory, link);
g_list_free_1(link);
}
*pcmdhist = g_list_append(*pcmdhist, g_strdup(text));
*phistory = g_list_append(*phistory, g_strdup(text));
}
const char *command_history_prev(WINDOW_REC *window, const char *text)
{
GList *pos, **phistpos;
GList *pos, **phistory_pos;
int *phistory_over_counter;
phistpos = window_history ? &window->histpos : &histpos;
if (window_history) {
phistory_pos = &window->history_pos;
phistory_over_counter = &window->history_over_counter;
} else {
phistory_pos = &history_pos;
phistory_over_counter = &history_over_counter;
}
pos = *phistpos;
if (*phistpos == NULL)
*phistpos = g_list_last(window_history ? window->cmdhist : cmdhist);
else
*phistpos = (*phistpos)->prev;
pos = *phistory_pos;
if (*phistory_pos != NULL) {
*phistory_pos = (*phistory_pos)->prev;
if (*phistory_pos == NULL)
(*phistory_over_counter)++;
} else {
*phistory_pos = g_list_last(window_history ?
window->history : history);
}
if (*text != '\0' &&
(pos == NULL || strcmp(pos->data, text) != 0)) {
@ -79,45 +90,51 @@ const char *command_history_prev(WINDOW_REC *window, const char *text)
command_history_add(window, text);
}
return *phistpos == NULL ? "" : (*phistpos)->data;
return *phistory_pos == NULL ? "" : (*phistory_pos)->data;
}
const char *command_history_next(WINDOW_REC *window, const char *text)
{
GList *pos, **phistpos;
GList *pos, **phistory_pos;
int *phistory_over_counter;
phistpos = window_history ? &window->histpos : &histpos;
if (window_history) {
phistory_pos = &window->history_pos;
phistory_over_counter = &window->history_over_counter;
} else {
phistory_pos = &history_pos;
phistory_over_counter = &history_over_counter;
}
pos = *phistpos;
pos = *phistory_pos;
if (pos != NULL)
*phistpos = (*phistpos)->next;
*phistory_pos = (*phistory_pos)->next;
else if (*phistory_over_counter > 0) {
(*phistory_over_counter)--;
*phistory_pos = window_history ? window->history : history;
}
if (*text != '\0' &&
(pos == NULL || strcmp(pos->data, text) != 0)) {
/* save the old entry to history */
command_history_add(window, text);
}
return *phistpos == NULL ? "" : (*phistpos)->data;
return *phistory_pos == NULL ? "" : (*phistory_pos)->data;
}
void command_history_clear_pos(WINDOW_REC *window)
{
window->histpos = NULL;
histpos = NULL;
}
static void sig_window_created(WINDOW_REC *window)
{
window->histlines = 0;
window->cmdhist = NULL;
window->histpos = NULL;
window->history_over_counter = 0;
window->history_pos = NULL;
history_over_counter = 0;
history_pos = NULL;
}
static void sig_window_destroyed(WINDOW_REC *window)
{
g_list_foreach(window->cmdhist, (GFunc) g_free, NULL);
g_list_free(window->cmdhist);
g_list_foreach(window->history, (GFunc) g_free, NULL);
g_list_free(window->history);
}
static char *special_history_func(const char *text, void *item, int *free_ret)
@ -131,7 +148,7 @@ static char *special_history_func(const char *text, void *item, int *free_ret)
findtext = g_strdup_printf("*%s*", text);
ret = NULL;
tmp = window_history ? window->cmdhist : cmdhist;
tmp = window_history ? window->history : history;
for (; tmp != NULL; tmp = tmp->next) {
const char *line = tmp->data;
@ -157,20 +174,19 @@ void command_history_init(void)
special_history_func_set(special_history_func);
histlines = 0;
cmdhist = NULL; histpos = NULL;
history_lines = 0; history_over_counter = 0;
history = NULL; history_pos = NULL;
read_settings();
signal_add("window created", (SIGNAL_FUNC) sig_window_created);
signal_add("window destroyed", (SIGNAL_FUNC) sig_window_destroyed);
signal_add("setup changed", (SIGNAL_FUNC) read_settings);
}
void command_history_deinit(void)
{
signal_remove("window created", (SIGNAL_FUNC) sig_window_created);
signal_remove("window destroyed", (SIGNAL_FUNC) sig_window_destroyed);
signal_remove("setup changed", (SIGNAL_FUNC) read_settings);
g_list_foreach(cmdhist, (GFunc) g_free, NULL);
g_list_free(cmdhist);
g_list_foreach(history, (GFunc) g_free, NULL);
g_list_free(history);
}