# -*- shell-script -*-
# "set style" debugger command
#
#   Copyright (C) 2016-2017 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 == ${BASH_SOURCE[0]} ]] ; then
    dirname=${BASH_SOURCE[0]%/*}
    [[ $dirname == $0 ]] && top_dir='../..' || top_dir=${dirname}/../..
    [[ -z $_Dbg_libdir ]] && _Dbg_libdir=$top_dir
    for file in help alias ; do source "$top_dir/lib/${file}.sh"; done
fi

typeset -x _Dbg_pygments_styles=''

if (( _Dbg_working_term_highlight )) ; then
   _Dbg_pygments_styles=$("${_Dbg_libdir}/lib/term-highlight.py" -L)
fi

_Dbg_complete_style() {
    COMPREPLY=( $_Dbg_pygments_styles off )
}

_Dbg_help_add_sub set style \
'**set** **style** [*pygments-style* | **off**]

Set the pygments style use in souce-code listings to *pygments-style* or
remove any pygments formatting if *pygments-style* is **off**.

If style is omitted and **off** not given, list all of the available
pygments styles.

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

`set highlight`, show style, and show highlight.
' 1

_Dbg_list_styles() {
    typeset -a list=( $_Dbg_pygments_styles )
    sort_list 0 ${#list[@]}-1
    typeset columnized=''
    typeset -i width; ((width=_Dbg_set_linewidth-5))
    typeset -a columnized; columnize $width
    typeset -i i
    _Dbg_msg "Valid styles are:"
    for ((i=0; i<${#columnized[@]}; i++)) ; do
	_Dbg_msg "  ${columnized[i]}"
    done
}


_Dbg_do_set_style() {
    if (( ! _Dbg_working_term_highlight )) ; then
	_Dbg_errmsg "Can't run term-highlight. Setting forced off"
	return 1
    fi
    if (( $# == 0 )) ; then
	_Dbg_list_styles
    else
	style=$1
	if [[ "${style}" == "off" ]] ; then
	    _Dbg_set_style=''
	    _Dbg_filecache_reset
	    _Dbg_readin $_Dbg_frame_last_filename
	    _Dbg_do_show style
	elif [[ "${_Dbg_pygments_styles#*$style}" != "$_Dbg_pygments_styles" ]] ; then
	    _Dbg_set_style=$style
	    _Dbg_filecache_reset
	    _Dbg_readin $_Dbg_frame_last_filename
	    _Dbg_do_show style
	else
	    _Dbg_errmsg "Can't find style $style"
	    _Dbg_list_styles
	fi
    fi
    return 0
}
