# This file is part of lyx2lyx
# -*- coding: utf-8 -*-
# Copyright (C) 2007 José Matos <jamatos@lyx.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
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.

""" Convert files to the file format generated by lyx 1.6"""

import re
import unicodedata
import sys, os

from parser_tools import find_token, find_end_of

####################################################################
# Private helper functions

def find_end_of_inset(lines, i):
    " Find end of inset, where lines[i] is included."
    return find_end_of(lines, i, "\\begin_inset", "\\end_inset")

####################################################################

def fix_wrong_tables(document):
    i = 0
    while True:
        i = find_token(document.body, "\\begin_inset Tabular", i)
        if i == -1:
            return
        j = find_end_of_inset(document.body, i + 1)
        if j == -1:
            document.warning("Malformed LyX document: Could not find end of tabular.")
            continue

        m = i + 1
        nrows = int(document.body[i+1].split('"')[3])
        ncols = int(document.body[i+1].split('"')[5])

        for l in range(nrows):
            prev_multicolumn = 0
            for k in range(ncols):
                m = find_token(document.body, '<cell', m)

                if document.body[m].find('multicolumn') != -1:
                    multicol_cont = int(document.body[m].split('"')[1])

                    if multicol_cont == 2 and (k == 0 or prev_multicolumn == 0):
                        document.body[m] = document.body[m][:5] + document.body[m][21:]
                        prev_multicolumn = 0
                    else:
                        prev_multicolumn = multicol_cont
                else:
                    prev_multicolumn = 0

        i = j + 1


##
# Conversion hub
#

supported_versions = ["1.6.0","1.6"]
convert = [
           [277, [fix_wrong_tables]],
          ]

revert =  [
           [276, []],
          ]


if __name__ == "__main__":
    pass