#!/usr/bin/env python
#
# 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

from xml.dom import minidom
import sys, codecs

map = {
    "emphasis": ( "/", "/"),
    "chapter": ( "+ ", ""),
    "sect1": ("++ ", ""),
    "sect2": ("+++ ", ""),
    "sect3": ("++++ ", ""),
    "title": ( "", "\n"),
    "para": ( "", "\n\n"),
    "listitem" : ("* ", ""),
    "screen" : ( "\n<table class=\"code\">| *\n" , "*\n</table>\n"),
    "note" : ( "\n<table class=\"info\">\n| <plugin Embed src=\"http://www.andesi.org/img_articles/Icones/note.gif\"> " , "\n</table>\n"),
    "important" : ( "\n<table class=\"info\">\n| <plugin Embed src=\"http://www.andesi.org/img_articles/Icones/important.gif\"> " , "\n</table>\n"),
    "warning" : ( "\n<table class=\"info\">\n| <plugin Embed src=\"http://www.andesi.org/img_articles/Icones/warning.gif\"> " , "\n</table>\n"),
    "itemizedlist" : ( "" , ""),
    "table" : ( "\n<table border=\"1\" cellpadding=\"2\">\n|" , "</table>\n"),
    "entry" : ( "| " , ""),
    "thead" : ( "" , ""),
    "tbody" : ( "" , ""),
    "row" : ( "\n" , ""),
    "userinput" : ( "" , ""),
    "tgroup" : ( "" , ""),
    "tip" : ( "\n<table class=\"info\">\n| <plugin Embed src=\"http://www.andesi.org/img_articles/Icones/tip.gif\">" , "\n</table>\n"),
  }

def unxml (node):
    "The transcoding function"
    # Handle text-only nodes
    if (node.nodeType == node.TEXT_NODE):
        return node.data.replace ("\n", "")
    if (node.nodeType == node.CDATA_SECTION_NODE):
        return node.data.replace ("\n", "") 

    # More complex node, use recursion
    res = ""
    for child in node.childNodes:        
        res += unxml (child)
        
    if (node.nodeName == "ulink"):
        # Dirty hack to handle urls
        url = node.getAttribute ("url")
        res = "((%s)(%s))" % (url, res)
    elif (node.nodeName in map):
        # Normal mapping
        res = map[node.nodeName][0] + res + map[node.nodeName][1]
    return res

def clean (str):
    "Cleans the string"
    return str.replace ("      ", "")

# Main
if (len (sys.argv) != 2):
    print "Syntax:", sys.argv[0], " <filename>"
    sys.exit (1)

# Dirty hack for UTF-8
source = open (sys.argv[1], "r")
utf8 = codecs.EncodedFile (source, "utf-8", "iso8859-1")
# Process
doc = minidom.parse (utf8)
res = clean (unxml (doc))
# Dirty hack for iso8859-1 output
stdout = codecs.getwriter ("iso8859-1")(sys.stdout, "replace")
#stdout = codecs.getwriter ("iso8859-1")(sys.stdout)
stdout.write (res)