Removing the --undo option, having the undo functions always enabled.

If wished, the user can unbind them.  This fixes Savannah bug #42456.


git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4964 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -6,6 +6,10 @@
 	* src/nano.c (do_input): A toggle should not break a series of ^Ks.
 	* src/winio.c (get_shortcut): Do not treat holding both Control and
 	Meta the same as holding only Control.
+	* src/global.c, src/rcfile.c, src/nano.h, src/nano.c, src/text.c:
+	Remove the --undo option, having the undo functions always enabled.
+	If wished, the user can unbind them.  This fixes Savannah bug #42456.
+	* doc/man/{nano.1,nanorc.5}, doc/texinfo/nano.texi: Update the docs.
 
 2014-06-11  Benno Schulenberg  <bensberg@justemail.net>
 	* src/winio.c (get_mouseinput): Produce the correct return value for

doc/man/nano.1

 .\" Hey, EMACS: -*- nroff -*-
+.\" $Id$
+.\"
 .\" Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
 .\" 2009, 2010, 2013, 2014 Free Software Foundation, Inc.
 .\"
@@ -18,8 +20,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.\" $Id$
-.TH NANO 1 "version 2.3.3" "April 2014"
+.TH NANO 1 "version 2.3.5" "June 2014"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 
@@ -200,10 +201,6 @@ Enable alternative spell checker command.
 Always save changed buffer without prompting.  Same as Pico's \fB\-t\fP
 option.
 .TP
-.B \-u (\-\-undo)
-Enable the experimental generic-purpose undo/redo code.  The default undo
-and redo shortcuts are Meta-U and Meta-E, respectively.
-.TP
 .B \-v (\-\-view)
 View-file (read-only) mode.
 .TP

doc/man/nanorc.5

 .\" Hey, EMACS: -*- nroff -*-
+.\" $Id$
+.\"
 .\" Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
 .\" 2013, 2014 Free Software Foundation, Inc.
 .\"
@@ -18,8 +20,7 @@
 .\"   Documentation License along with this program.  If not, see
 .\"   <http://www.gnu.org/licenses/>.
 .\"
-.\" $Id$
-.TH NANORC 5 "version 2.3.3" "May 2014"
+.TH NANORC 5 "version 2.3.5" "June 2014"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .SH NAME
@@ -232,9 +233,6 @@ Valid color names for foreground and background are:
 .BR white , \ black , \ red , \ blue , \ green , \ yellow , \ magenta ", and " cyan .
 And either "\fIfgcolor\fR" or ",\fIbgcolor\fR" may be left out.
 .TP
-.B set/unset undo
-Enable the experimental generic-purpose undo/redo code.
-.TP
 .B set/unset view
 Disallow file modification.
 .TP

doc/texinfo/nano.texi

@@ -7,9 +7,9 @@
 @c This file has the new style title page commands.
 @c Run 'makeinfo' rather than 'texinfo-format-buffer'.
 @smallbook
-@set EDITION 0.1
-@set VERSION 2.3.3
-@set UPDATED May 2014
+@set EDITION 0.2
+@set VERSION 2.3.5
+@set UPDATED June 2014
 
 @dircategory Editors
 @direntry
@@ -23,7 +23,7 @@
 @titlepage
 @title GNU @code{nano}
 @subtitle a small and friendly text editor.
-@subtitle version 2.3.3
+@subtitle version 2.3.5
 
 @author Chris Allegretta
 @page
@@ -289,10 +289,6 @@ Don't ask whether or not to save the current contents of the file when
 exiting, assume yes.  This is most useful when using @code{nano} as the
 composer of a mailer program.
 
-@item -u, --undo
-Enable the experimental generic-purpose undo/redo code.  The default undo
-and redo shortcuts are Meta-U and Meta-E, respectively.
-
 @item -v, --view
 Don't allow the contents of the file to be altered.  Note that this
 option should NOT be used in place of correct file permissions to
@@ -747,9 +743,6 @@ Valid color names for foreground and background are:
 white, black, red, blue, green, yellow, magenta, and cyan.
 And either "fgcolor" or ",bgcolor" may be left out.
 
-@item set/unset undo
-Enable the experimental generic-purpose undo/redo code.
-
 @item set/unset view
 Disallow file modification.
 

src/global.c

@@ -795,12 +795,10 @@ void shortcut_init(void)
     add_to_funcs(do_unindent, MMAIN,
 	N_("Unindent Text"), IFSCHELP(nano_unindent_msg), TRUE, NOVIEW);
 
-    if (ISSET(UNDOABLE)) {
-	add_to_funcs(do_undo, MMAIN,
-	    N_("Undo"), IFSCHELP(nano_undo_msg), FALSE, NOVIEW);
-	add_to_funcs(do_redo, MMAIN,
-	    N_("Redo"), IFSCHELP(nano_redo_msg), TRUE, NOVIEW);
-    }
+    add_to_funcs(do_undo, MMAIN,
+	N_("Undo"), IFSCHELP(nano_undo_msg), FALSE, NOVIEW);
+    add_to_funcs(do_redo, MMAIN,
+	N_("Redo"), IFSCHELP(nano_redo_msg), TRUE, NOVIEW);
 #endif /* !NANO_TINY */
 
     add_to_funcs(do_left, MMAIN,
@@ -1032,10 +1030,8 @@ void shortcut_init(void)
     add_to_sclist(MMAIN, "M-6", do_copy_text, 0, TRUE);
     add_to_sclist(MMAIN, "M-}", do_indent_void, 0, TRUE);
     add_to_sclist(MMAIN, "M-{", do_unindent, 0, TRUE);
-    if (ISSET(UNDOABLE)) {
-	add_to_sclist(MMAIN, "M-U", do_undo, 0, TRUE);
-	add_to_sclist(MMAIN, "M-E", do_redo, 0, TRUE);
-    }
+    add_to_sclist(MMAIN, "M-U", do_undo, 0, TRUE);
+    add_to_sclist(MMAIN, "M-E", do_redo, 0, TRUE);
 #endif
     add_to_sclist(MMOST, "^B", do_left, 0, TRUE);
     add_to_sclist(MMOST, "^F", do_right, 0, TRUE);

src/nano.c

@@ -936,10 +936,6 @@ void usage(void)
 #endif
     print_opt("-t", "--tempfile",
 	N_("Auto save on exit, don't prompt"));
-#ifndef NANO_TINY
-    print_opt("-u", "--undo", N_("Allow generic undo [EXPERIMENTAL]"));
-#endif
-
     print_opt("-v", "--view", N_("View mode (read-only)"));
 #ifndef DISABLE_WRAPPING
     print_opt("-w", "--nowrap", N_("Don't hard-wrap long lines"));
@@ -2201,11 +2197,11 @@ int main(int argc, char **argv)
     while ((optchr =
 #ifdef HAVE_GETOPT_LONG
 	getopt_long(argc, argv,
-		"ABC:DEFGHIKLNOPQ:RST:UVWY:abcdefghijklmno:pqr:s:tuvwxz$",
+		"ABC:DEFGHIKLNOPQ:RST:UVWY:abcdefghijklmno:pqr:s:tvwxz$",
 		long_options, NULL)
 #else
 	getopt(argc, argv,
-		"ABC:DEFGHIKLNOPQ:RST:UVWY:abcdefghijklmno:pqr:s:tuvwxz$")
+		"ABC:DEFGHIKLNOPQ:RST:UVWY:abcdefghijklmno:pqr:s:tvwxz$")
 #endif
 		) != -1) {
 	switch (optchr) {
@@ -2365,11 +2361,6 @@ int main(int argc, char **argv)
 	    case 't':
 		SET(TEMP_FILE);
 		break;
-#ifndef NANO_TINY
-	    case 'u':
-		SET(UNDOABLE);
-		break;
-#endif
 	    case 'v':
 		SET(VIEW_MODE);
 		break;

src/nano.h

@@ -537,7 +537,6 @@ enum
     NO_NEWLINES,
     BOLD_TEXT,
     QUIET,
-    UNDOABLE,
     SOFTWRAP,
     POS_HISTORY,
     LOCKING,

src/rcfile.c

@@ -95,7 +95,6 @@ static const rcoption rcopts[] = {
     {"smarthome", SMART_HOME},
     {"smooth", SMOOTH_SCROLL},
     {"tabstospaces", TABS_TO_SPACES},
-    {"undo", UNDOABLE},
     {"whitespace", 0},
     {"wordbounds", WORD_BOUNDS},
     {"softwrap", SOFTWRAP},
@@ -1265,9 +1264,6 @@ void parse_rcfile(FILE *rcstream
 		else
 		    rcfile_error(N_("Cannot unset option \"%s\""),
 			rcopts[i].name);
-		/* If undo/redo was enabled, reinitialize the lists. */
-		if (strcasecmp(rcopts[i].name, "undo") == 0)
-		    shortcut_init();
 		break;
 	    }
 	}

src/text.c

@@ -854,9 +854,6 @@ void add_undo(undo_type current_action)
     openfilestruct *fs = openfile;
 	/* Last thing we cut to set up the undo for uncut. */
 
-    if (!ISSET(UNDOABLE))
-	return;
-
     /* Ugh, if we were called while cutting not-to-end, non-marked, and
      * on the same lineno, we need to abort here. */
     u = fs->current_undo;
@@ -996,9 +993,6 @@ void update_undo(undo_type action)
     undo *u;
     openfilestruct *fs = openfile;
 
-    if (!ISSET(UNDOABLE))
-	return;
-
 #ifdef DEBUG
         fprintf(stderr, "action = %d, fs->last_action = %d, openfile->current->lineno = %ld",
 		action, fs->last_action, (long)openfile->current->lineno);