# (C) Copyright 1996-2016 ECMWF.
#
# This software is licensed under the terms of the Apache Licence Version 2.0
# which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
# In applying this licence, ECMWF does not waive the privileges and immunities
# granted to it by virtue of its status as an intergovernmental organisation nor
# does it submit to any jurisdiction.


from xml.sax.handler import ContentHandler
from xml.sax import make_parser
import sys


class ObjectHandler(ContentHandler):
    title = ""
    name = ""
    tab1 = 0
    tab2 = 2
    open_file = 0

    def tab(self, n):
        sep = ""
        i = 0
        while i < n:
            sep = sep + "\t"
            i = i + 1
        return sep

    def nice(self, name, attrs):
        sep1 = self.tab(self.tab1)
        sep2 = self.tab(self.tab2)
        self.file.write("%s<%s " % (sep1, name))
        for key in attrs.getNames():
            self.file.write(" %s='%s'" % (key, attrs.getValue(key)))
        self.file.write(">")

    def characters(self, data):
        if self.open_file == 1:
            self.file.write(data)

    def startElement(self, name, attrs):
        print "found %s " % name
        if name == "magics":
            return
        if name == "static":
            return

        if name == "class":
            self.name = attrs.get("name")
            filename = "../params/%s.xml" % self.name
            self.file = open(filename, "w")
            self.open_file = 1
            self.file.write("<magics>\n")
            print "open %s " % filename
        self.nice(name, attrs)
        self.tab1 = self.tab1 + 1
        self.tab2 = self.tab2 + 1

    def endElement(self, name):
        print "close %s\n " % name
        if self.open_file == 0:
            return

        self.tab1 = self.tab1 - 1
        self.tab2 = self.tab2 - 1
        self.file.write("%s</%s>" % (self.tab(self.tab1), name))
        if name == "class":
            self.file.write("\n</magics>\n")
            self.file.close()
            self.open_file = 0


object = ObjectHandler()
saxparser = make_parser()
saxparser.setContentHandler(object)

datasource = open(sys.argv[1], "r")
saxparser.parse(datasource)