/* finds and print all occurencies of commands from the history which
* start with <cmd>
* Returns the number of found entries on success,
* and 0 if no such entry exists
*
* Peter Weilbacher 28Jun2004
*/
int
history_find_all(char *cmd)
{
int len;
int found;
int number = 0; /* each found entry increases this */
/* quote removal, copied from non-readline version */
if (*cmd == '"') cmd++;
if (!*cmd) return 0;
len = strlen(cmd);
if (cmd[len - 1] == '"') cmd[--len] = 0;
if (!*cmd) return 0;
/* printf ("searching for all occurrences of '%s'\n", cmd); */
/* Output matching history entries in chronological order (not backwards
* so we have to start at the beginning of the history list.
*/
history_set_pos(0);
do {
found = history_search_prefix(cmd, 1); /* Anchored backward search for prefix */
if (found == 0) {
number++;
printf("%5i %s\n", where_history() + history_base, current_history()->line);
/* go one step back or you find always the same entry. */
if (!history_set_pos(where_history() + 1))
break; /* finished if stepping didn't work */
} /* (found == 0) */
} while (found > -1);
return number;
}
/* finds and print all occurencies of commands from the history which
* start with <cmd>
* Returns the number of found entries on success,
* and 0 if no such entry exists
*
* Peter Weilbacher 28Jun2004
*/
int
history_find_all(char *cmd)
{
int len;
int found;
int number = 0; /* each found entry increases this */
/* quote removal, copied from non-readline version */
if (*cmd == '"') cmd++;
if (!*cmd) return 0;
len = strlen(cmd);
if (cmd[len - 1] == '"') cmd[--len] = 0;
if (!*cmd) return 0;
/* printf ("searching for all occurrences of '%s'\n", cmd); */
/* Output matching history entries in chronological order (not backwards
* so we have to start at the beginning of the history list.
*/
#if defined(HAVE_LIBREADLINE)
found = history_set_pos(0);
if (found == -1) {
fprintf(stderr, "ERROR (history_find_all): could not rewind history\n");
return 0;
}
#else /* HAVE_LIBEDITLINE */
/* libedit's history_set_pos() does not work properly,
so we manually go to oldest entry */
while (next_history());
#endif
do {
found = history_search_prefix(cmd, 1); /* Anchored backward search for prefix */
if (found == 0) {
number++;
#if defined(HAVE_LIBREADLINE)
printf("%5i %s\n", where_history() + history_base, current_history()->line);
/* go one step back or you find always the same entry. */
if (!history_set_pos(where_history() + 1))
break; /* finished if stepping didn't work */
#else /* HAVE_LIBEDITLINE */
/* libedit's history indices are reversed wrt GNU readline */
printf("%5i %s\n", history_length - where_history() + history_base, current_history()->line);
/* go one step back or you find always the same entry. */
if (!previous_history())
break; /* finished if stepping didn't work */
#endif
} /* (found == 0) */
} while (found > -1);
return number;
}
/* finds and returns a command from the history which starts with <cmd>
* Returns NULL if nothing found
*
* Peter Weilbacher, 28Jun2004
*/
const char *
history_find(char *cmd)
{
int len;
/* quote removal, copied from non-readline version */
if (*cmd == '"') cmd++;
if (!*cmd) return 0;
len = strlen(cmd);
if (cmd[len - 1] == '"') cmd[--len] = 0;
if (!*cmd) return 0;
/* printf ("searching for '%s'\n", cmd); */
/* Anchored backward search for prefix */
if (history_search_prefix(cmd, -1) == 0)
return current_history()->line;
return NULL;
}
/* Search the history list for STRING starting at absolute history position
POS. If STRING begins with `^', the search must match STRING at the
beginning of a history line, otherwise a full substring match is performed
for STRING. DIR < 0 means to search backwards through the history list,
DIR >= 0 means to search forward. */
static int
noninc_search_from_pos (char *string, int pos, int dir)
{
int ret, old;
old = where_history ();
history_set_pos (pos);
if (*string == '^')
ret = history_search_prefix (string + 1, dir);
else
ret = history_search (string, dir);
if (ret != -1)
ret = where_history ();
history_set_pos (old);
return (ret);
}
