Added -b, -e and -f compatibility flags, updated man pages, added Alt-Alt-x functionality

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@411 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -6,9 +6,11 @@ General
 	  HURD.  Changes in files.c:write_file(), new function
 	  nano.c:clear_filename(), many changed in main(), a few other
 	  places.  Please test this!
+	- Added -b, -e, and -f flags, which we ignore as nano provides 
+	  their functionality already.
 - cut.c:
   do_uncut_text()
-	- Fix renumbering bug when uncutting marked test at filebot.
+	- Fix renumbering bug when uncutting marked text at filebot.
 	- Fix screen not being displayed when we are uncutting marked
 	  text at editbot (Bug discovered by Ken Tyler).
 	- Fix magic line not getting created when (you guessed it)
@@ -26,6 +28,14 @@ General
 - nano.c:
   renumber()
 	- Dont stupidly assign the value of prev->lineno if prev == NULL!
+  main()
+	- Added code to check for Alt-Alt (27-27) keystrokes and set the
+	  next keystroke as a control sequence.  New variable 
+	  modify_control_key.  Removed #ifdef _POSIX_VDISABLE check
+	  around Control-S,Q,Z handlers because we need it now for
+	  the Alt-Alt-x code.
+- nano.1, nano.1.html:
+	- Updated man page for -b, -e, -f and expanded explanation for -p.
 - utils.c:
   new_magicline()
 	- Increment totsize!!  We decrement it when we've read a file, 

faq.html

@@ -21,7 +21,7 @@
 nano?</a></font>
 <br><font color="#330000"><a href="#1.5">1.5. Why the name change from
 TIP?</a></font>
-<br><font color="#330000"><a href="#1.6">1.6 What is the current version
+<br><font color="#330000"><a href="#1.6">1.6. What is the current version
 of nano?</a></font>
 <br><font color="#330000"><a href="#1.7">1.7. I want to read the man page
 without having to download the program!</a></font></blockquote>

nano.1

@@ -64,7 +64,9 @@ a new file, do not follow it.  Good for editing files in /tmp perhaps?
 Enable mouse support (if available for your system).
 .TP
 .B \-p (\-\-pico)
-Emulate Pico as closely as possible.
+Emulate Pico as closely as possible.  This affects both the "shortcut list"
+at the bottom of the screen, as well as the display and entry of previous
+search and replace strings.
 .TP
 .B \-s (\-\-speller)
 Enable alternative spell checker command.
@@ -84,6 +86,9 @@ Disable help screen at bottom of editor.
 .B \-z (\-\-suspend)
 Enable suspend ability.
 .TP
+.B \-b, \-e, \-f
+Ignored, for compatibility with Pico.
+.TP
 .B \+LINE
 Places cursor at LINE on startup.
 .SH NOTES

nano.1.html

@@ -86,7 +86,9 @@ Enable mouse support (if available for your system).
 <DT><B>-p (--pico)</B>
 
 <DD>
-Emulate Pico as closely as possible.
+Emulate Pico as closely as possible.  This affects both the &quot;shortcut list&quot;
+at the bottom of the screen, as well as the display and entry of previous
+search and replace strings.
 <DT><B>-s (--speller)</B>
 
 <DD>
@@ -111,6 +113,10 @@ Disable help screen at bottom of editor.
 
 <DD>
 Enable suspend ability.
+<DT><B>-b, -e, -f</B>
+
+<DD>
+Ignored, for compatibility with Pico.
 <DT><B>+LINE</B>
 
 <DD>
@@ -171,6 +177,6 @@ used by others).
 This document was created by
 <A HREF="http://localhost/cgi-bin/man/man2html">man2html</A>,
 using the manual pages.<BR>
-Time: 04:21:24 GMT, December 03, 2000
+Time: 02:16:52 GMT, December 18, 2000
 </BODY>
 </HTML>

nano.c

@@ -2034,7 +2034,7 @@ int main(int argc, char *argv[])
     int kbinput;		/* Input from keyboard */
     long startline = 0;		/* Line to try and start at */
     int keyhandled = 0;		/* Have we handled the keystroke yet? */
-    int i;
+    int i, modify_control_seq = 0;
     char *argv0;
 #ifdef _POSIX_VDISABLE
     struct termios term;
@@ -2077,10 +2077,10 @@ int main(int argc, char *argv[])
 #endif
 
 #ifdef HAVE_GETOPT_LONG
-    while ((optchr = getopt_long(argc, argv, "?T:RVchiklmpr:s:tvwxz",
+    while ((optchr = getopt_long(argc, argv, "?T:RVbcefhiklmpr:s:tvwxz",
 				 long_options, &option_index)) != EOF) {
 #else
-    while ((optchr = getopt(argc, argv, "h?T:RVciklmpr:s:tvwxz")) != EOF) {
+    while ((optchr = getopt(argc, argv, "h?T:RVbcefiklmpr:s:tvwxz")) != EOF) {
 #endif
 
 	switch (optchr) {
@@ -2099,6 +2099,11 @@ int main(int argc, char *argv[])
 	case 'V':
 	    version();
 	    exit(0);
+	case 'b':
+	case 'e':
+	case 'f':
+		/* Pico compatibility flags */
+		break;
 	case 'c':
 	    SET(CONSTUPDATE);
 	    break;
@@ -2275,6 +2280,12 @@ int main(int argc, char *argv[])
 		}
 #endif
 		break;
+	    case 27:
+		/* If we get Alt-Alt, the next keystroke should be the same as a
+		   control sequence */
+		modify_control_seq = 1;
+		keyhandled = 1;
+		break;
 	    case 91:
 
 		switch (kbinput = wgetch(edit)) {
@@ -2404,6 +2415,18 @@ int main(int argc, char *argv[])
 		break;
 	    }
 	}
+	/* If the modify_control_seq is set, we received an Alt-Alt 
+	   sequence before this, so we make this key a control sequence 
+	   by subtracting 64 or 96, depending on its value. */
+	if (!keyhandled && modify_control_seq) {
+	    if (kbinput >= 'A' && kbinput < 'a')
+		kbinput -= 64;
+	    else if (kbinput >= 'a' && kbinput <= 'z')
+		kbinput -= 96;
+
+	    modify_control_seq = 0;
+	}
+
 	/* Look through the main shortcut list to see if we've hit a
 	   shortcut key */
 	for (i = 0; i < MAIN_LIST_LEN && !keyhandled; i++) {
@@ -2417,18 +2440,17 @@ int main(int argc, char *argv[])
 		keyhandled = 1;
 	    }
 	}
-#ifndef _POSIX_VDISABLE
+	/* If we're in raw mode or using Alt-Alt-x, we have to catch
-	/* Since we're in raw mode, we have to catch ^Q and ^S */
+	   Control-S and Control-Q */
 	if (kbinput == 17 || kbinput == 19)
 	    keyhandled = 1;
 
-	/* And catch ^Z by hand when triggered */
+	/* Catch ^Z by hand when triggered also */
 	if (kbinput == 26) {
 	    if (ISSET(SUSPEND))
 		do_suspend(0);
 	    keyhandled = 1;
 	}
-#endif
 
 	/* Last gasp, stuff that's not in the main lists */
 	if (!keyhandled)