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authorpixel <pixel>2004-11-27 21:43:48 +0000
committerpixel <pixel>2004-11-27 21:43:48 +0000
commit583964f9f8e954eb57b31663065c5b9e833d045e (patch)
treeacec0745ed26454ee1275d3887f7456307669014 /MSVC/readline/undo.c
parent3f7070bf177b743be0eeb8c404a620f72eb15ab6 (diff)
Large dos2unix commit...
Diffstat (limited to 'MSVC/readline/undo.c')
-rw-r--r--MSVC/readline/undo.c522
1 files changed, 261 insertions, 261 deletions
diff --git a/MSVC/readline/undo.c b/MSVC/readline/undo.c
index 07002da..9b8cdb2 100644
--- a/MSVC/readline/undo.c
+++ b/MSVC/readline/undo.c
@@ -1,261 +1,261 @@
-/* readline.c -- a general facility for reading lines of input
- with emacs style editing and completion. */
-
-/* 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 "config.h"
-
-#include <sys/types.h>
-
-#if defined (HAVE_UNISTD_H)
-# include <unistd.h> /* for _POSIX_VERSION */
-#endif /* HAVE_UNISTD_H */
-
-#if defined (HAVE_STDLIB_H)
-# include <stdlib.h>
-#else
-# include "ansi_stdlib.h"
-#endif /* HAVE_STDLIB_H */
-
-#include <stdio.h>
-
-/* System-specific feature definitions and include files. */
-#include "rldefs.h"
-
-/* Some standard library routines. */
-#include "readline.h"
-#include "history.h"
-
-#include "rlprivate.h"
-#include "xmalloc.h"
-
-/* Non-zero tells rl_delete_text and rl_insert_text to not add to
- the undo list. */
-int _rl_doing_an_undo = 0;
-
-/* How many unclosed undo groups we currently have. */
-int _rl_undo_group_level = 0;
-
-/* The current undo list for THE_LINE. */
-UNDO_LIST *rl_undo_list = (UNDO_LIST *)NULL;
-
-/* **************************************************************** */
-/* */
-/* Undo, and Undoing */
-/* */
-/* **************************************************************** */
-
-/* Remember how to undo something. Concatenate some undos if that
- seems right. */
-void
-rl_add_undo (what, start, end, text)
- enum undo_code what;
- int start, end;
- char *text;
-{
- UNDO_LIST *temp = (UNDO_LIST *)xmalloc (sizeof (UNDO_LIST));
- temp->what = what;
- temp->start = start;
- temp->end = end;
- temp->text = text;
- temp->next = rl_undo_list;
- rl_undo_list = temp;
-}
-
-/* Free the existing undo list. */
-void
-rl_free_undo_list ()
-{
- while (rl_undo_list)
- {
- UNDO_LIST *release = rl_undo_list;
- rl_undo_list = rl_undo_list->next;
-
- if (release->what == UNDO_DELETE)
- free (release->text);
-
- free (release);
- }
- rl_undo_list = (UNDO_LIST *)NULL;
-}
-
-/* Undo the next thing in the list. Return 0 if there
- is nothing to undo, or non-zero if there was. */
-int
-rl_do_undo ()
-{
- UNDO_LIST *release;
- int waiting_for_begin, start, end;
-
-#define TRANS(i) ((i) == -1 ? rl_point : ((i) == -2 ? rl_end : (i)))
-
- start = end = waiting_for_begin = 0;
- do
- {
- if (!rl_undo_list)
- return (0);
-
- _rl_doing_an_undo = 1;
- RL_SETSTATE(RL_STATE_UNDOING);
-
- /* To better support vi-mode, a start or end value of -1 means
- rl_point, and a value of -2 means rl_end. */
- if (rl_undo_list->what == UNDO_DELETE || rl_undo_list->what == UNDO_INSERT)
- {
- start = TRANS (rl_undo_list->start);
- end = TRANS (rl_undo_list->end);
- }
-
- switch (rl_undo_list->what)
- {
- /* Undoing deletes means inserting some text. */
- case UNDO_DELETE:
- rl_point = start;
- rl_insert_text (rl_undo_list->text);
- free (rl_undo_list->text);
- break;
-
- /* Undoing inserts means deleting some text. */
- case UNDO_INSERT:
- rl_delete_text (start, end);
- rl_point = start;
- break;
-
- /* Undoing an END means undoing everything 'til we get to a BEGIN. */
- case UNDO_END:
- waiting_for_begin++;
- break;
-
- /* Undoing a BEGIN means that we are done with this group. */
- case UNDO_BEGIN:
- if (waiting_for_begin)
- waiting_for_begin--;
- else
- rl_ding ();
- break;
- }
-
- _rl_doing_an_undo = 0;
- RL_UNSETSTATE(RL_STATE_UNDOING);
-
- release = rl_undo_list;
- rl_undo_list = rl_undo_list->next;
- free (release);
- }
- while (waiting_for_begin);
-
- return (1);
-}
-#undef TRANS
-
-int
-_rl_fix_last_undo_of_type (type, start, end)
- int type, start, end;
-{
- UNDO_LIST *rl;
-
- for (rl = rl_undo_list; rl; rl = rl->next)
- {
- if (rl->what == type)
- {
- rl->start = start;
- rl->end = end;
- return 0;
- }
- }
- return 1;
-}
-
-/* Begin a group. Subsequent undos are undone as an atomic operation. */
-int
-rl_begin_undo_group ()
-{
- rl_add_undo (UNDO_BEGIN, 0, 0, 0);
- _rl_undo_group_level++;
- return 0;
-}
-
-/* End an undo group started with rl_begin_undo_group (). */
-int
-rl_end_undo_group ()
-{
- rl_add_undo (UNDO_END, 0, 0, 0);
- _rl_undo_group_level--;
- return 0;
-}
-
-/* Save an undo entry for the text from START to END. */
-int
-rl_modifying (start, end)
- int start, end;
-{
- if (start > end)
- {
- SWAP (start, end);
- }
-
- if (start != end)
- {
- char *temp = rl_copy_text (start, end);
- rl_begin_undo_group ();
- rl_add_undo (UNDO_DELETE, start, end, temp);
- rl_add_undo (UNDO_INSERT, start, end, (char *)NULL);
- rl_end_undo_group ();
- }
- return 0;
-}
-
-/* Revert the current line to its previous state. */
-int
-rl_revert_line (count, key)
- int count, key;
-{
- if (!rl_undo_list)
- rl_ding ();
- else
- {
- while (rl_undo_list)
- rl_do_undo ();
- }
- return 0;
-}
-
-/* Do some undoing of things that were done. */
-int
-rl_undo_command (count, key)
- int count, key;
-{
- if (count < 0)
- return 0; /* Nothing to do. */
-
- while (count)
- {
- if (rl_do_undo ())
- count--;
- else
- {
- rl_ding ();
- break;
- }
- }
- return 0;
-}
+/* readline.c -- a general facility for reading lines of input
+ with emacs style editing and completion. */
+
+/* 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 "config.h"
+
+#include <sys/types.h>
+
+#if defined (HAVE_UNISTD_H)
+# include <unistd.h> /* for _POSIX_VERSION */
+#endif /* HAVE_UNISTD_H */
+
+#if defined (HAVE_STDLIB_H)
+# include <stdlib.h>
+#else
+# include "ansi_stdlib.h"
+#endif /* HAVE_STDLIB_H */
+
+#include <stdio.h>
+
+/* System-specific feature definitions and include files. */
+#include "rldefs.h"
+
+/* Some standard library routines. */
+#include "readline.h"
+#include "history.h"
+
+#include "rlprivate.h"
+#include "xmalloc.h"
+
+/* Non-zero tells rl_delete_text and rl_insert_text to not add to
+ the undo list. */
+int _rl_doing_an_undo = 0;
+
+/* How many unclosed undo groups we currently have. */
+int _rl_undo_group_level = 0;
+
+/* The current undo list for THE_LINE. */
+UNDO_LIST *rl_undo_list = (UNDO_LIST *)NULL;
+
+/* **************************************************************** */
+/* */
+/* Undo, and Undoing */
+/* */
+/* **************************************************************** */
+
+/* Remember how to undo something. Concatenate some undos if that
+ seems right. */
+void
+rl_add_undo (what, start, end, text)
+ enum undo_code what;
+ int start, end;
+ char *text;
+{
+ UNDO_LIST *temp = (UNDO_LIST *)xmalloc (sizeof (UNDO_LIST));
+ temp->what = what;
+ temp->start = start;
+ temp->end = end;
+ temp->text = text;
+ temp->next = rl_undo_list;
+ rl_undo_list = temp;
+}
+
+/* Free the existing undo list. */
+void
+rl_free_undo_list ()
+{
+ while (rl_undo_list)
+ {
+ UNDO_LIST *release = rl_undo_list;
+ rl_undo_list = rl_undo_list->next;
+
+ if (release->what == UNDO_DELETE)
+ free (release->text);
+
+ free (release);
+ }
+ rl_undo_list = (UNDO_LIST *)NULL;
+}
+
+/* Undo the next thing in the list. Return 0 if there
+ is nothing to undo, or non-zero if there was. */
+int
+rl_do_undo ()
+{
+ UNDO_LIST *release;
+ int waiting_for_begin, start, end;
+
+#define TRANS(i) ((i) == -1 ? rl_point : ((i) == -2 ? rl_end : (i)))
+
+ start = end = waiting_for_begin = 0;
+ do
+ {
+ if (!rl_undo_list)
+ return (0);
+
+ _rl_doing_an_undo = 1;
+ RL_SETSTATE(RL_STATE_UNDOING);
+
+ /* To better support vi-mode, a start or end value of -1 means
+ rl_point, and a value of -2 means rl_end. */
+ if (rl_undo_list->what == UNDO_DELETE || rl_undo_list->what == UNDO_INSERT)
+ {
+ start = TRANS (rl_undo_list->start);
+ end = TRANS (rl_undo_list->end);
+ }
+
+ switch (rl_undo_list->what)
+ {
+ /* Undoing deletes means inserting some text. */
+ case UNDO_DELETE:
+ rl_point = start;
+ rl_insert_text (rl_undo_list->text);
+ free (rl_undo_list->text);
+ break;
+
+ /* Undoing inserts means deleting some text. */
+ case UNDO_INSERT:
+ rl_delete_text (start, end);
+ rl_point = start;
+ break;
+
+ /* Undoing an END means undoing everything 'til we get to a BEGIN. */
+ case UNDO_END:
+ waiting_for_begin++;
+ break;
+
+ /* Undoing a BEGIN means that we are done with this group. */
+ case UNDO_BEGIN:
+ if (waiting_for_begin)
+ waiting_for_begin--;
+ else
+ rl_ding ();
+ break;
+ }
+
+ _rl_doing_an_undo = 0;
+ RL_UNSETSTATE(RL_STATE_UNDOING);
+
+ release = rl_undo_list;
+ rl_undo_list = rl_undo_list->next;
+ free (release);
+ }
+ while (waiting_for_begin);
+
+ return (1);
+}
+#undef TRANS
+
+int
+_rl_fix_last_undo_of_type (type, start, end)
+ int type, start, end;
+{
+ UNDO_LIST *rl;
+
+ for (rl = rl_undo_list; rl; rl = rl->next)
+ {
+ if (rl->what == type)
+ {
+ rl->start = start;
+ rl->end = end;
+ return 0;
+ }
+ }
+ return 1;
+}
+
+/* Begin a group. Subsequent undos are undone as an atomic operation. */
+int
+rl_begin_undo_group ()
+{
+ rl_add_undo (UNDO_BEGIN, 0, 0, 0);
+ _rl_undo_group_level++;
+ return 0;
+}
+
+/* End an undo group started with rl_begin_undo_group (). */
+int
+rl_end_undo_group ()
+{
+ rl_add_undo (UNDO_END, 0, 0, 0);
+ _rl_undo_group_level--;
+ return 0;
+}
+
+/* Save an undo entry for the text from START to END. */
+int
+rl_modifying (start, end)
+ int start, end;
+{
+ if (start > end)
+ {
+ SWAP (start, end);
+ }
+
+ if (start != end)
+ {
+ char *temp = rl_copy_text (start, end);
+ rl_begin_undo_group ();
+ rl_add_undo (UNDO_DELETE, start, end, temp);
+ rl_add_undo (UNDO_INSERT, start, end, (char *)NULL);
+ rl_end_undo_group ();
+ }
+ return 0;
+}
+
+/* Revert the current line to its previous state. */
+int
+rl_revert_line (count, key)
+ int count, key;
+{
+ if (!rl_undo_list)
+ rl_ding ();
+ else
+ {
+ while (rl_undo_list)
+ rl_do_undo ();
+ }
+ return 0;
+}
+
+/* Do some undoing of things that were done. */
+int
+rl_undo_command (count, key)
+ int count, key;
+{
+ if (count < 0)
+ return 0; /* Nothing to do. */
+
+ while (count)
+ {
+ if (rl_do_undo ())
+ count--;
+ else
+ {
+ rl_ding ();
+ break;
+ }
+ }
+ return 0;
+}