# encoding: utf-8
=begin

* Name: SiSU

** Description: documents, structuring, processing, publishing, search
*** system environment, error screen reporting

** Author: Ralph Amissah
  [ralph@amissah.com]
  [ralph.amissah@gmail.com]

** Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
  2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 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]

** 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]

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

=end
module SiSU_Errors
  require_relative 'se'                                 # se.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__
