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Imported from ../bash-2.0.tar.gz.

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This commit is contained in:
Jari Aalto 1996-12-23 17:02:34 +00:00
commit ccc6cda312
502 changed files with 91988 additions and 69123 deletions
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178
lib/readline/isearch.c
View file

@ -26,19 +26,22 @@
675 Mass Ave, Cambridge, MA 02139, USA. */
#define READLINE_LIBRARY
#if defined (HAVE_CONFIG_H)
# include <config.h>
#endif
#include <stdio.h>
#if defined (HAVE_UNISTD_H)
# include <unistd.h>
#endif
#include "memalloc.h"
#include <sys/types.h>
#include "rldefs.h"
#include "readline.h"
#include "history.h"
#define STREQ(a, b) (((a)[0] == (b)[0]) && (strcmp ((a), (b)) == 0))
#define STREQN(a, b, n) (((a)[0] == (b)[0]) && (strncmp ((a), (b), (n)) == 0))
/* Variables imported from other files in the readline library. */
extern Keymap _rl_keymap;
extern HIST_ENTRY *saved_line_for_history;
@ -46,6 +49,14 @@ extern int rl_line_buffer_len;
extern int rl_point, rl_end;
extern char *rl_line_buffer;
extern void _rl_save_prompt ();
extern void _rl_restore_prompt ();
extern int rl_execute_next ();
extern void rl_extend_line_buffer ();
extern int _rl_input_available ();
extern char *xmalloc (), *xrealloc ();
static int rl_search_history ();
@ -56,18 +67,18 @@ static char *prev_line_found;
/* Search backwards through the history looking for a string which is typed
interactively. Start with the current line. */
int
rl_reverse_search_history (sign, key)
int sign;
int key;
int sign, key;
{
return (rl_search_history (-sign, key));
}
/* Search forwards through the history looking for a string which is typed
interactively. Start with the current line. */
int
rl_forward_search_history (sign, key)
int sign;
int key;
int sign, key;
{
return (rl_search_history (sign, key));
}
@ -83,29 +94,43 @@ rl_display_search (search_string, reverse_p, where)
int reverse_p, where;
{
char *message;
int msglen, searchlen;
message = xmalloc (1 + (search_string ? strlen (search_string) : 0) + 30);
*message = '\0';
searchlen = (search_string && *search_string) ? strlen (search_string) : 0;
message = xmalloc (searchlen + 33);
msglen = 0;
#if defined (NOTDEF)
if (where != -1)
sprintf (message, "[%d]", where + history_base);
{
sprintf (message, "[%d]", where + history_base);
msglen = strlen (message);
}
#endif /* NOTDEF */
strcat (message, "(");
message[msglen++] = '(';
if (reverse_p)
strcat (message, "reverse-");
{
strcpy (message + msglen, "reverse-");
msglen += 8;
}
strcat (message, "i-search)`");
strcpy (message + msglen, "i-search)`");
msglen += 10;
if (search_string)
strcat (message, search_string);
{
strcpy (message + msglen, search_string);
msglen += searchlen;
}
strcpy (message + msglen, "': ");
strcat (message, "': ");
rl_message ("%s", message, 0);
free (message);
rl_redisplay ();
(*rl_redisplay_function) ();
}
/* Search through the history looking for an interactively typed string.
@ -114,8 +139,7 @@ rl_display_search (search_string, reverse_p, where)
backwards. */
static int
rl_search_history (direction, invoking_key)
int direction;
int invoking_key;
int direction, invoking_key;
{
/* The string that the user types in to search for. */
char *search_string;
@ -127,19 +151,17 @@ rl_search_history (direction, invoking_key)
int search_string_size;
/* The list of lines to search through. */
char **lines, *allocated_line = (char *)NULL;
char **lines, *allocated_line;
/* The length of LINES. */
int hlen;
/* Where we get LINES from. */
HIST_ENTRY **hlist = history_list ();
HIST_ENTRY **hlist;
register int i = 0;
int orig_point = rl_point;
int orig_line = where_history ();
int last_found_line = orig_line;
int c, done = 0, found, failed, sline_len;
register int i;
int orig_point, orig_line, last_found_line;
int c, found, failed, sline_len;
/* The line currently being searched. */
char *sline;
@ -148,10 +170,17 @@ rl_search_history (direction, invoking_key)
int line_index;
/* Non-zero if we are doing a reverse search. */
int reverse = (direction < 0);
int reverse;
orig_point = rl_point;
last_found_line = orig_line = where_history ();
reverse = direction < 0;
hlist = history_list ();
allocated_line = (char *)NULL;
/* Create an arrary of pointers to the lines that we want to search. */
maybe_replace_line ();
i = 0;
if (hlist)
for (i = 0; hlist[i]; i++);
@ -176,6 +205,8 @@ rl_search_history (direction, invoking_key)
/* The line where we start the search. */
i = orig_line;
_rl_save_prompt ();
/* Initialize search parameters. */
search_string = xmalloc (search_string_size = 128);
*search_string = '\0';
@ -192,14 +223,13 @@ rl_search_history (direction, invoking_key)
line_index = rl_point;
found = failed = 0;
while (!done)
for (;;)
{
Function *f = (Function *)NULL;
/* Read a key and decide how to proceed. */
c = rl_read_key ();
/* Hack C to Do What I Mean. */
if (_rl_keymap[c].type == ISFUNC)
{
f = _rl_keymap[c].function;
@ -210,78 +240,81 @@ rl_search_history (direction, invoking_key)
c = !reverse ? -1 : -2;
}
/* Let NEWLINE (^J) terminate the search for people who don't like
using ESC. ^M can still be used to terminate the search and
immediately execute the command. */
if (c == ESC || c == NEWLINE)
{
/* ESC still terminates the search, but if there is pending
input or if input arrives within 0.1 seconds (on systems
with select(2)) it is used as a prefix character
with rl_execute_next. WATCH OUT FOR THIS! This is intended
to allow the arrow keys to be used like ^F and ^B are used
to terminate the search and execute the movement command. */
if (c == ESC && _rl_input_available ()) /* XXX */
rl_execute_next (ESC);
break;
}
if (c >= 0 && (CTRL_CHAR (c) || META_CHAR (c) || c == RUBOUT))
{
rl_execute_next (c);
break;
}
switch (c)
{
case ESC:
done = 1;
continue;
case -1:
if (!search_string_index)
if (search_string_index == 0)
continue;
else if (reverse)
--line_index;
else if (line_index != sline_len)
++line_index;
else
{
if (reverse)
--line_index;
else
{
if (line_index != sline_len)
++line_index;
else
ding ();
}
}
ding ();
break;
/* switch directions */
case -2:
direction = -direction;
reverse = (direction < 0);
reverse = direction < 0;
break;
case CTRL ('G'):
strcpy (rl_line_buffer, lines[orig_line]);
rl_point = orig_point;
rl_end = strlen (rl_line_buffer);
_rl_restore_prompt();
rl_clear_message ();
free (allocated_line);
free (lines);
return 0;
default:
if (CTRL_CHAR (c) || META_CHAR (c) || c == RUBOUT)
/* Add character to search string and continue search. */
if (search_string_index + 2 >= search_string_size)
{
rl_execute_next (c);
done = 1;
continue;
}
else
{
/* Add character to search string and continue search. */
if (search_string_index + 2 >= search_string_size)
{
search_string_size += 128;
search_string = xrealloc (search_string, search_string_size);
}
search_string[search_string_index++] = c;
search_string[search_string_index] = '\0';
break;
search_string_size += 128;
search_string = xrealloc (search_string, search_string_size);
}
search_string[search_string_index++] = c;
search_string[search_string_index] = '\0';
break;
}
found = failed = 0;
while (1)
for (found = failed = 0;;)
{
int limit = sline_len - search_string_index + 1;
/* Search the current line. */
while (reverse ? (line_index >= 0) : (line_index < limit))
{
if (STREQN(search_string, sline + line_index, search_string_index))
{
found++;
break;
}
if (STREQN (search_string, sline + line_index, search_string_index))
{
found++;
break;
}
else
line_index += direction;
}
@ -314,10 +347,7 @@ rl_search_history (direction, invoking_key)
break;
/* Now set up the line for searching... */
if (reverse)
line_index = sline_len - search_string_index;
else
line_index = 0;
line_index = reverse ? sline_len - search_string_index : 0;
}
if (failed)
@ -357,6 +387,8 @@ rl_search_history (direction, invoking_key)
/* First put back the original state. */
strcpy (rl_line_buffer, lines[orig_line]);
_rl_restore_prompt ();
/* Free the search string. */
free (search_string);