#!/usr/bin/env ruby
# Copyright (c) 2010-2016 Kenshi Muto
#
# This program is free software
# You can distribute or modify this program under the terms of
# the GNU LGPL, Lesser General Public License version 2.1.
# For details of the GNU LGPL, see the file "COPYING".
#

# simple validator for Re:VIEW

block = nil
maxcolcount = 0
colcount = 0
ln = 0

ARGF.each {|line|
  ln += 1
  if line =~ /\A\/\/([a-z]+)\{\s*\Z/ || line =~ /\A\/\/([a-z]+)\[.+?\{\s*\Z/
    # block
    _block = $1
    puts "#{ln}: block #{_block} started, but previous block #{block} didn't close yet." unless block.nil?
    block = _block
  elsif line =~ /\A\/\/\}/
    puts "#{ln}: block ended, but not opened." if block.nil?
    block = nil
    maxcolcount = 0
    colcount = 0
  elsif line =~ /\A(\d+\.)\s+/
    # number
    unless ["list", "emlist", "listnum", "emlistnum", "cmd", "image", "table"].include?(block)
      puts "#{ln}: found '#{$1}' without the head space. Is it correct?"
    end
  elsif line =~ /\A\*\s+/
    # itemize
    unless ["list", "emlist", "listnum", "emlistnum", "cmd", "image", "table"].include?(block)
      puts "#{ln}: found '*' without the head space. Is it correct?"
    end
  elsif line =~ /\A\s+(\d+\.)\s+/ && line =~ /\A\s+\*\s+/
    unless ["list", "emlist", "listnum", "emlistnum", "cmd", "image", "table"].include?(block)
      puts "#{ln}: found itemized list or numbered list in #{block}. Is it correct?"
    end
  elsif block == "table"
    next if line.start_with?('#@')
    if line !~ /\A\-\-\-\-\-/
      # table
      colcount = line.split("\t").size
      maxcolcount = colcount if maxcolcount == 0
      puts "#{ln}: the number of table columns seems mismatch. (#{maxcolcount} != #{colcount})" if colcount != maxcolcount
    end
  end
}