#!/usr/bin/env ruby
# encoding: utf-8

<<RDOC

== texlog_extract - extract error and warning messages from TeX log files

=== Synopsis

    texlog_extract [options] [file[.log]]
    
    Options:

    -h, --help            print this help and exit
    -V, --version         print version and exit
    -w, --web             html colouring instead of ansi

=== Description

This is texlog_extract version 1.0

texlog_extract extracts a TeX log file, keeping track of the
files in which errors and warnings occur and, for each file,
reports warnings, the first error (if any), and the
error‘s line number. The output comes in ASCII,
ANSI-colored ASCII or HTML.

=== Copyright

Copyright (C) 2009 Wybo Dekker (<tt>wybo@dekkerdocumenten.nl</tt>)

This program is free software: you can redistribute it and/or modify it
under the terms of the {GNU General Public License}[http://www.gnu.org/licenses/]
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}[http://www.gnu.org/licenses/] for more details.

RDOC

begin
  require 'scriptingutils'
rescue LoadError
  raise LoadError,<<EOF,['scriptingutils.rb']
\n    You probably did not install scriptingutils.rb. 
    This gem is included in #{File.basename($0)}'s distribution
    Install with: sudo gem install scriptingutils-x.y.z.gem
EOF
end

RELEASE = 1.1

@sep = "\n"
def handle_options
  ARGV.options do |opt|
    opt.banner ="Usage: #{MYNAME} [options] file[.log]"

    opt.on("-h","--help", "print this help and exit") do
        quit(opt.help)
    end

    opt.on('-V','--version', 'print version and exit') do
      print_version(RELEASE)
    end

    opt.on("-w","--web", "web coloring instead of ansi") do
      String.colortype(:html)
      @sep = "<br>\n"
    end

    opt.on("-n","--nocolor", "no coloring") do
      String.colortype
    end

    opt.parse!
  end or quit("Option parsing error")
end
init(nil,:handle_options)
ARGV[0] ||= 'main'
file = ARGV[0].sub(/\.log$/,'')+'.log'
File.exist?(file)    or quit("file #{file} not found")
File.readable?(file) or quit("file #{file} not readable")

t = texlog_extract(file,@warnings_to_skip)
t[2].sort.reverse.each do |f, messages|
  messages.unshift("Messages for file #{f}:".fil) unless f.empty?
  puts messages.join(@sep)
end
# $Id: texlog_extract,v 1.9 2012/02/11 12:12:09 wybo Exp $