# -*- shell-script -*-
# "set highlight" debugger command
#
#   Copyright (C) 2011, 2014-2016 Rocky Bernstein <rocky@gnu.org>
#
#   This program 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.
#
#   This program 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.
#
#   You should have received a copy of the GNU General Public License
#   along with this program; see the file COPYING.  If not, write to
#   the Free Software Foundation, 59 Temple Place, Suite 330, Boston,
#   MA 02111 USA.

# If run standalone, pull in other files we need
if [[ $0 == ${BASH_SOURCE[0]} ]]  {
    setglobal dirname = $(BASH_SOURCE[0]%/*)
    [[ $dirname == $0 ]] && setglobal top_dir = ''../..'' || setglobal top_dir = "$(dirname)/../.."
    [[ -z $_Dbg_libdir ]] && setglobal _Dbg_libdir = $top_dir
    for file in [help alias]  { source $top_dir/lib/$(file).sh; }
}

_Dbg_help_add_sub set highlight \
'**set** **highlight** [**dark**|**light**|**off**|**reset**]

Set using terminal highlight.

Use **reset** to set highlighting on and force a redo of syntax
highlighting of already cached files. This may be needed if the
debugger was started without syntax highlighting initially.

**dark** sets sets for highlighting for a terminal with a dark background and
**light** set for highlighting for a terminal with a light background.

See also:
---------

**show highlight**.
'

_Dbg_next_complete[set highlight]='_Dbg_complete_highlight'

proc _Dbg_complete_highlight {
    setglobal COMPREPLY = ''(dark light off reset)
}

proc _Dbg_do_set_highlight {
    if sh-expr ' ! _Dbg_working_term_highlight )' {
	_Dbg_errmsg "Can't run term-highlight. Setting forced off"
	return 1
    }
    typeset onoff=$(1:-'light')
    match $onoff {
	with on | light 
	    setglobal _Dbg_set_highlight = ''light''
	    _Dbg_filecache_reset
	    _Dbg_readin $_Dbg_frame_last_filename
	    
	with dark 
	    setglobal _Dbg_set_highlight = ''dark''
	    _Dbg_filecache_reset
	    _Dbg_readin $_Dbg_frame_last_filename
	    
	with off | 0 
	    setglobal _Dbg_set_highlight = ''''
	    _Dbg_filecache_reset
	    _Dbg_readin $_Dbg_frame_last_filename
	    
	with reset 
	    [[ -z $_Dbg_set_highlight ]] && setglobal _Dbg_set_highlight = ''light''
	    _Dbg_filecache_reset
	    _Dbg_readin $_Dbg_frame_last_filename
	    
	with * 
	    _Dbg_errmsg '"dark", "light", "off", or "reset" expected.'
	    return 1
    }
    _Dbg_do_show highlight
    return 0
}