diff options
Diffstat (limited to 'MSVC/readline/parens.c')
-rw-r--r-- | MSVC/readline/parens.c | 354 |
1 files changed, 177 insertions, 177 deletions
diff --git a/MSVC/readline/parens.c b/MSVC/readline/parens.c index 1e4d54e..5b79b31 100644 --- a/MSVC/readline/parens.c +++ b/MSVC/readline/parens.c @@ -1,177 +1,177 @@ -/* parens.c -- Implementation of matching parentheses feature. */
-
-/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc.
-
- This file is part of the GNU Readline Library, a library for
- reading lines of text with interactive input and history editing.
-
- The GNU Readline Library is free software; you can redistribute it
- and/or modify it under the terms of the GNU General Public License
- as published by the Free Software Foundation; either version 2, or
- (at your option) any later version.
-
- The GNU Readline Library is distributed in the hope that it will be
- useful, but WITHOUT ANY WARRANTY; without even the implied warranty
- of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- The GNU General Public License is often shipped with GNU software, and
- is generally kept in a file called COPYING or LICENSE. If you do not
- have a copy of the license, write to the Free Software Foundation,
- 59 Temple Place, Suite 330, Boston, MA 02111 USA. */
-#define READLINE_LIBRARY
-
-#include "rlconf.h"
-
-#include "config.h"
-
-#include <stdio.h>
-#include <sys/types.h>
-
-#if defined (HAVE_UNISTD_H)
-# include <unistd.h>
-#endif
-
-#if defined (FD_SET) && !defined (HAVE_SELECT)
-# define HAVE_SELECT
-#endif
-
-#if defined HAVE_SELECT && !defined _WIN32
-# include <sys/time.h>
-#endif /* HAVE_SELECT */
-#if defined (HAVE_SYS_SELECT_H)
-# include <sys/select.h>
-#endif
-
-#if defined (HAVE_STRING_H)
-# include <string.h>
-#else /* !HAVE_STRING_H */
-# include <strings.h>
-#endif /* !HAVE_STRING_H */
-
-#if !defined (strchr) && !defined (__STDC__) && !defined _MSC_VER
-extern char *strchr (), *strrchr ();
-#endif /* !strchr && !__STDC__ */
-
-#include "readline.h"
-#include "rlprivate.h"
-
-static int find_matching_open PARAMS((char *, int, int));
-
-/* Non-zero means try to blink the matching open parenthesis when the
- close parenthesis is inserted. */
-#if defined (HAVE_SELECT)
-int rl_blink_matching_paren = 1;
-#else /* !HAVE_SELECT */
-int rl_blink_matching_paren = 0;
-#endif /* !HAVE_SELECT */
-
-static int _paren_blink_usec = 500000;
-
-/* Change emacs_standard_keymap to have bindings for paren matching when
- ON_OR_OFF is 1, change them back to self_insert when ON_OR_OFF == 0. */
-void
-_rl_enable_paren_matching (on_or_off)
- int on_or_off;
-{
- if (on_or_off)
- { /* ([{ */
- rl_bind_key_in_map (')', rl_insert_close, emacs_standard_keymap);
- rl_bind_key_in_map (']', rl_insert_close, emacs_standard_keymap);
- rl_bind_key_in_map ('}', rl_insert_close, emacs_standard_keymap);
- }
- else
- { /* ([{ */
- rl_bind_key_in_map (')', rl_insert, emacs_standard_keymap);
- rl_bind_key_in_map (']', rl_insert, emacs_standard_keymap);
- rl_bind_key_in_map ('}', rl_insert, emacs_standard_keymap);
- }
-}
-
-int
-rl_set_paren_blink_timeout (u)
- int u;
-{
- int o;
-
- o = _paren_blink_usec;
- if (u > 0)
- _paren_blink_usec = u;
- return (o);
-}
-
-int
-rl_insert_close (count, invoking_key)
- int count, invoking_key;
-{
- if (rl_explicit_arg || !rl_blink_matching_paren)
- _rl_insert_char (count, invoking_key);
- else
- {
-#if defined HAVE_SELECT && !defined _WIN32
- int orig_point, match_point, ready;
- struct timeval timer;
- fd_set readfds;
-
- _rl_insert_char (1, invoking_key);
- (*rl_redisplay_function) ();
- match_point =
- find_matching_open (rl_line_buffer, rl_point - 2, invoking_key);
-
- /* Emacs might message or ring the bell here, but I don't. */
- if (match_point < 0)
- return -1;
-
- FD_ZERO (&readfds);
- FD_SET (fileno (rl_instream), &readfds);
- timer.tv_sec = 0;
- timer.tv_usec = _paren_blink_usec;
-
- orig_point = rl_point;
- rl_point = match_point;
- (*rl_redisplay_function) ();
- ready = select (1, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timer);
- rl_point = orig_point;
-#else /* !HAVE_SELECT */
- _rl_insert_char (count, invoking_key);
-#endif /* !HAVE_SELECT */
- }
- return 0;
-}
-
-static int
-find_matching_open (string, from, closer)
- char *string;
- int from, closer;
-{
- register int i;
- int opener, level, delimiter;
-
- switch (closer)
- {
- case ']': opener = '['; break;
- case '}': opener = '{'; break;
- case ')': opener = '('; break;
- default:
- return (-1);
- }
-
- level = 1; /* The closer passed in counts as 1. */
- delimiter = 0; /* Delimited state unknown. */
-
- for (i = from; i > -1; i--)
- {
- if (delimiter && (string[i] == delimiter))
- delimiter = 0;
- else if (rl_basic_quote_characters && strchr (rl_basic_quote_characters, string[i]))
- delimiter = string[i];
- else if (!delimiter && (string[i] == closer))
- level++;
- else if (!delimiter && (string[i] == opener))
- level--;
-
- if (!level)
- break;
- }
- return (i);
-}
+/* parens.c -- Implementation of matching parentheses feature. */ + +/* Copyright (C) 1987, 1989, 1992 Free Software Foundation, Inc. + + This file is part of the GNU Readline Library, a library for + reading lines of text with interactive input and history editing. + + The GNU Readline Library is free software; you can redistribute it + and/or modify it under the terms of the GNU General Public License + as published by the Free Software Foundation; either version 2, or + (at your option) any later version. + + The GNU Readline Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + The GNU General Public License is often shipped with GNU software, and + is generally kept in a file called COPYING or LICENSE. If you do not + have a copy of the license, write to the Free Software Foundation, + 59 Temple Place, Suite 330, Boston, MA 02111 USA. */ +#define READLINE_LIBRARY + +#include "rlconf.h" + +#include "config.h" + +#include <stdio.h> +#include <sys/types.h> + +#if defined (HAVE_UNISTD_H) +# include <unistd.h> +#endif + +#if defined (FD_SET) && !defined (HAVE_SELECT) +# define HAVE_SELECT +#endif + +#if defined HAVE_SELECT && !defined _WIN32 +# include <sys/time.h> +#endif /* HAVE_SELECT */ +#if defined (HAVE_SYS_SELECT_H) +# include <sys/select.h> +#endif + +#if defined (HAVE_STRING_H) +# include <string.h> +#else /* !HAVE_STRING_H */ +# include <strings.h> +#endif /* !HAVE_STRING_H */ + +#if !defined (strchr) && !defined (__STDC__) && !defined _MSC_VER +extern char *strchr (), *strrchr (); +#endif /* !strchr && !__STDC__ */ + +#include "readline.h" +#include "rlprivate.h" + +static int find_matching_open PARAMS((char *, int, int)); + +/* Non-zero means try to blink the matching open parenthesis when the + close parenthesis is inserted. */ +#if defined (HAVE_SELECT) +int rl_blink_matching_paren = 1; +#else /* !HAVE_SELECT */ +int rl_blink_matching_paren = 0; +#endif /* !HAVE_SELECT */ + +static int _paren_blink_usec = 500000; + +/* Change emacs_standard_keymap to have bindings for paren matching when + ON_OR_OFF is 1, change them back to self_insert when ON_OR_OFF == 0. */ +void +_rl_enable_paren_matching (on_or_off) + int on_or_off; +{ + if (on_or_off) + { /* ([{ */ + rl_bind_key_in_map (')', rl_insert_close, emacs_standard_keymap); + rl_bind_key_in_map (']', rl_insert_close, emacs_standard_keymap); + rl_bind_key_in_map ('}', rl_insert_close, emacs_standard_keymap); + } + else + { /* ([{ */ + rl_bind_key_in_map (')', rl_insert, emacs_standard_keymap); + rl_bind_key_in_map (']', rl_insert, emacs_standard_keymap); + rl_bind_key_in_map ('}', rl_insert, emacs_standard_keymap); + } +} + +int +rl_set_paren_blink_timeout (u) + int u; +{ + int o; + + o = _paren_blink_usec; + if (u > 0) + _paren_blink_usec = u; + return (o); +} + +int +rl_insert_close (count, invoking_key) + int count, invoking_key; +{ + if (rl_explicit_arg || !rl_blink_matching_paren) + _rl_insert_char (count, invoking_key); + else + { +#if defined HAVE_SELECT && !defined _WIN32 + int orig_point, match_point, ready; + struct timeval timer; + fd_set readfds; + + _rl_insert_char (1, invoking_key); + (*rl_redisplay_function) (); + match_point = + find_matching_open (rl_line_buffer, rl_point - 2, invoking_key); + + /* Emacs might message or ring the bell here, but I don't. */ + if (match_point < 0) + return -1; + + FD_ZERO (&readfds); + FD_SET (fileno (rl_instream), &readfds); + timer.tv_sec = 0; + timer.tv_usec = _paren_blink_usec; + + orig_point = rl_point; + rl_point = match_point; + (*rl_redisplay_function) (); + ready = select (1, &readfds, (fd_set *)NULL, (fd_set *)NULL, &timer); + rl_point = orig_point; +#else /* !HAVE_SELECT */ + _rl_insert_char (count, invoking_key); +#endif /* !HAVE_SELECT */ + } + return 0; +} + +static int +find_matching_open (string, from, closer) + char *string; + int from, closer; +{ + register int i; + int opener, level, delimiter; + + switch (closer) + { + case ']': opener = '['; break; + case '}': opener = '{'; break; + case ')': opener = '('; break; + default: + return (-1); + } + + level = 1; /* The closer passed in counts as 1. */ + delimiter = 0; /* Delimited state unknown. */ + + for (i = from; i > -1; i--) + { + if (delimiter && (string[i] == delimiter)) + delimiter = 0; + else if (rl_basic_quote_characters && strchr (rl_basic_quote_characters, string[i])) + delimiter = string[i]; + else if (!delimiter && (string[i] == closer)) + level++; + else if (!delimiter && (string[i] == opener)) + level--; + + if (!level) + break; + } + return (i); +} |