# Copyright (C) 2000-2001 The OpenRPG Project
#
#        openrpg-dev@lists.sourceforge.net
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
# --
#
# File: orpg_xml.py
# Author: Chris Davis
# Maintainer:
# Version:
#   $Id: orpg_xml.py,v 1.12 2007/07/19 20:33:10 digitalxero Exp $
#
# Description: xml utilies
#

from orpg import minidom
import string

from orpg.tools.orpg_log import logger
from orpg.tools.decorators import debugging

class xml:
    @debugging
    def __init__(self):
        pass

    @debugging
    def toxml(self, root, pretty=0):
        return root.toxml(pretty)

    @debugging
    def parseXml(self, s):
        "parse and return doc"
        try:
            doc = minidom.parseString(s)
            doc.normalize()
            return doc
        except Exception, e:
            print e
            return None

    @debugging
    def safe_get_text_node(self, xml_dom):
        """ returns the child text node or creates one if doesnt exist """
        t_node = xml_dom._get_firstChild()
        if t_node == None:
            t_node = minidom.Text("")
            t_node = xml_dom.appendChild(t_node)
        return t_node

    @debugging
    def strip_unicode(self, txt):
        for i in xrange(len(txt)):
            if txt[i] not in string.printable:
                try: txt = txt.replace(txt[i], '&#' + str(ord(txt[i])) + ';')
                except: txt = txt.replace(txt[i], '{?}')
        return txt

    @debugging
    def strip_text(self, txt):
        #  The following block strips out 8-bit characters
        u_txt = ""
        bad_txt_found = 0
        txt = self.strip_unicode(txt)
        for c in txt:
            if ord(c) < 128: u_txt += c
            else: bad_txt_found = 1
        if bad_txt_found: print "Some non 7-bit ASCII characters found and stripped"
        return u_txt


xml = xml()