* files.c (do_writeout): Add check for file modification when saving
          the file so the user can at least know they may be blowing away changes.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4344 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

          invalid messages will display properly.  Fixes Savannah bug 24507.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4343 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4342 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Also initialize to_end, because for some reason it seems to be not getting set even when
type == CUT in add_undo (?!)



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4340 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * Remove CUTTOEND as an undo type as it's unneeded, fix u->to_end logic in undo struct.
        * undo.c (update_undo): Don't free cutbuffer if NULL, fix for Savannah bug #24499



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4339 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * cut.c (Add_undo): Save last cut undo information so it can be used for next uncut, fixes
          Savannah bug 24183.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4338 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * rcfile.c, color.c, nano.h: Add new capability for matching a syntax type by the "header" (1st line)
          of a file being edited.  Based on Savannah bug 24197 and inital proof of concept by Dave Geering
          <dgeering@toshiba-tap.com>



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4328 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * text.c: Add support for undoing a text uncut.  Split out the undo and redo of a text cut
          in order to avoid code duplication.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4327 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * nano.c: Do call disable_signals at startup regardless, since under cygwin we can't generate
          ^C without it.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4326 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

          issues with --disable-help, especially that do-writeout was treating ^G the same as ^M.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4317 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * configure.ac, color.c, rcfile.c, utils.c: 1st attempt at supporting systems which don't support
          GNU-style word boundaries.  New function fixbounds() to translate from GNU-style to
          BSD-style, autoconf option GNU_WORDBOUNDS.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4315 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * configure.ac, rcfile.c:  Add support for an alternate rcfilename at configure time.  Maybe this
          should become a command line option some day, but I don't see the need currently.  Start of   
          fix for Savannah bug #24128: Add nanorc support to win32 platform.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4314 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * text.c (do_enter):  Fix issue when compiled with --enable-debug, fixes Savannah bug 24092.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4309 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * text.c: Change error messages where we may possibly get into a bad state and urge
          the user to save when this happens.  Originally by Benno Schulenberg <bensberg@justemail.net>



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4308 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * files.c: (write_file): Add needed flags to open() calls when writing out files.  Fixes Savannah bug
          #23827: Compilation fails with -D_FORTIFY_SOURCE=2



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4306 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

	* files.c (write_file): Check exit code of fclose(), since in certain out of space conditions the OS will
	  happily report successful fwrite()s until you try and close the file.  Fix for Savannah bug
	  #24000: no free space on partition - nano claims successful write - file empty 



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4304 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * text.c (add_undo): Fix check for multi-line cut check skips adding other new legit events.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4300 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4299 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4298 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * files.c: Do not go on and attempt to write the main file if writing the backup file failed,
          related to Savannah bug 24000.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4297 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

          mistakenly think this is an update when it's really an add.  Also
          Fix an extra ; after an if statement which makes nano try to free a struct which
          may be NULL 



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4296 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4293 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

- Fix bug in fsfromlineno
- Tiny cleanups in undo



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4292 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

- Change add_undo and current_undo to only take action arg, as openfilestruct arg is always openfile
- Add ability to undo a file/cmd insert, needed to add undoable flag to read_file and open_buffer as a result



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4291 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

- Fix lots of warnings whe using -Wall
- Fix some comments



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4290 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4289 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4288 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

- When updating a normal consecutive ^K cut, bail from add_undo since it's not an add, and in update_undo free the old cutbuffer before copying it again.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4287 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4286 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Add undoing argument to do_cut_text as we don't want to be messing around with the undo contents when we're in the 
middle of an undo.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4285 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4283 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Fix redo of a line join.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4282 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Allow kdel to be rebound
Add note about rebinding kdel to backspace for those using OSX or PuTTY to connect to remote Linux machines in nanorc.sample.in

When undoing text deletes, move current_x to proper location



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4281 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Add ability to rebind the (still unfinished) undo and redo functions in case anyone is interested in testing it out early.
Add to nanorc.5 also.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4280 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4278 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * nano.c: Don't include langinfo.h if not using ENABLE_UTF8
          (Savannah patch 6565)



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4277 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

        * global.c: include proto.h earlier in file to fix AIX compilation
          (Savannah patch 6559)



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4274 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Fix break_line crashing when using certain locales from Mitsuya Shibata



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4272 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

Add beginning undo feature, since I want to start fixing bugs from savannah and don't want to manager another checking, and the code basically works for some operations.



git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4271 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@4270 35c25a1d-7b9e-4130-9fde-d3aeb78583b8