# encoding: utf-8
=begin

 * Name: SiSU

 * Description: a framework for document structuring, publishing and search

 * Author: Ralph Amissah

 * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
   2007, 2008, 2009, 2010, 2011, 2012, 2013 Ralph Amissah, All Rights Reserved.

 * License: GPL 3 or later:

   SiSU, a framework for document structuring, publishing and search

   Copyright (C) Ralph Amissah

   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 3 of the License, 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. If not, see <http://www.gnu.org/licenses/>.

   If you have Internet connection, the latest version of the GPL should be
   available at these locations:
   <http://www.fsf.org/licensing/licenses/gpl.html>
   <http://www.gnu.org/licenses/gpl.html>

   <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html>

 * SiSU uses:
   * Standard SiSU markup syntax,
   * Standard SiSU meta-markup syntax, and the
   * Standard SiSU object citation numbering and system

 * Hompages:
   <http://www.jus.uio.no/sisu>
   <http://www.sisudoc.org>

 * Download:
   <http://www.sisudoc.org/sisu/en/SiSU/download.html>

 * Git
   <http://sources.sisudoc.org/gitweb/?p=code/sisu.git;a=summary>
   <http://sources.sisudoc.org/?p=code/sisu.git;a=blob;f=lib/sisu/v4/errors.rb;hb=HEAD>

 * Ralph Amissah
   <ralph@amissah.com>
   <ralph.amissah@gmail.com>

 ** Description: system environment, error screen reporting

=end
module SiSU_Errors
  require_relative 'sysenv'                             # sysenv.rb
    include SiSU_Env; include SiSU_Screen
  class Rescued <CreateFile
    def initialize(error,errorlist,cmd,fns='')
      @fns,@cmd,@error,@errorlist=fns,cmd,error,errorlist
      @cmd=(cmd \
      && (cmd =~/c/)) \
      ?  'Vc'
      : 'V'
    end
    def location
      file=@fns \
      ? (SiSU_Env::CreateFile.new(@fns).file_error)
      : (File.new('/tmp/errorlog.sisu','w+'))
      file << @fns << "\n" << @error << "\n" << @errorlist
      file.close
      if @cmd=~/[vVM]/
        SiSU_Screen::Ansi.new('',$!,$@).rescue do
          (block_given?) ? yield : __LINE__.to_s + ':' + __FILE__
        end
      else
        SiSU_Screen::Ansi.new('',"rescued, exception raised, silenced").puts_grey
      end
    end
  end
end
__END__
