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edit: Fix history prev/next selection

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Commit 19ec1f262e tried to fix some
cases for history prev selection, but it broke others. Fix this
properly by using a separate entry for the current edit line that
is not yet in history buffer.
This commit is contained in:
Jouni Malinen 2011-10-15 14:03:35 +03:00
parent 44dc872ee5
commit 1e1a0a4dc9
1 changed files with 23 additions and 6 deletions
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29
src/utils/edit.c
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@ -1,6 +1,6 @@
/*
* Command line editing and history
* Copyright (c) 2010, Jouni Malinen <j@w1.fi>
* Copyright (c) 2010-2011, Jouni Malinen <j@w1.fi>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
@ -24,6 +24,8 @@
static char cmdbuf[CMD_BUF_LEN];
static int cmdbuf_pos = 0;
static int cmdbuf_len = 0;
static char currbuf[CMD_BUF_LEN];
static int currbuf_valid = 0;
#define HISTORY_MAX 100
@ -231,18 +233,22 @@ static void history_prev(void)
if (history_curr ==
dl_list_first(&history_list, struct edit_history, list)) {
cmdbuf[cmdbuf_len] = '\0';
history_add(cmdbuf);
if (!currbuf_valid) {
cmdbuf[cmdbuf_len] = '\0';
os_memcpy(currbuf, cmdbuf, cmdbuf_len + 1);
currbuf_valid = 1;
history_use();
return;
}
}
history_use();
if (history_curr ==
dl_list_last(&history_list, struct edit_history, list))
return;
history_curr = dl_list_entry(history_curr->list.next,
struct edit_history, list);
history_use();
}
@ -250,8 +256,16 @@ static void history_next(void)
{
if (history_curr == NULL ||
history_curr ==
dl_list_first(&history_list, struct edit_history, list))
dl_list_first(&history_list, struct edit_history, list)) {
if (currbuf_valid) {
currbuf_valid = 0;
edit_clear_line();
cmdbuf_len = cmdbuf_pos = os_strlen(currbuf);
os_memcpy(cmdbuf, currbuf, cmdbuf_len);
edit_redraw();
}
return;
}
history_curr = dl_list_entry(history_curr->list.prev,
struct edit_history, list);
@ -309,6 +323,8 @@ static void history_debug_dump(void)
printf("\r");
dl_list_for_each_reverse(h, &history_list, struct edit_history, list)
printf("%s%s\n", h == history_curr ? "[C]" : "", h->str);
if (currbuf_valid)
printf("{%s}\n", currbuf);
edit_redraw();
}
@ -1104,6 +1120,7 @@ int edit_init(void (*cmd_cb)(void *ctx, char *cmd),
char ** (*completion_cb)(void *ctx, const char *cmd, int pos),
void *ctx, const char *history_file)
{
currbuf[0] = '\0';
dl_list_init(&history_list);
history_curr = NULL;
if (history_file)