from sources import *from content import *from utils   import *class Formatter:    def __init__( self, processor ):        self.processor   = processor        self.identifiers = {}        self.chapters    = processor.chapters        self.sections    = processor.sections.values()        self.block_index = []        # store all blocks in a dictionary        self.blocks      = []        for section in self.sections:            for block in section.blocks.values():                self.add_identifier( block.name, block )                                    # add enumeration values to the index, since this is useful                for markup in block.markups:                    if markup.tag == 'values':                        for field in markup.fields:                            self.add_identifier( field.name, block )        self.block_index = self.identifiers.keys()        self.block_index.sort( index_sort )    def add_identifier( self, name, block ):        if self.identifiers.has_key( name ):            # duplicate name !!            sys.stderr.write( \               "WARNING: duplicate definition for '" + name + "' in " + \               block.location() + ", previous definition in " +         \               self.identifiers[ name ].location() + "\n" )        else:            self.identifiers[name] = block                  #    #  Formatting the table of contents    #    def  toc_enter( self ):        pass        def  toc_chapter_enter( self, chapter ):        pass        def  toc_section_enter( self, section ):        pass            def  toc_section_exit( self, section ):        pass            def  toc_chapter_exit( self, chapter ):        pass    def  toc_index( self, index_filename ):        pass        def  toc_exit( self ):        pass    def  toc_dump( self, toc_filename = None, index_filename = None ):                output = None        if toc_filename:            output = open_output( toc_filename )                self.toc_enter()            for chap in self.processor.chapters:                self.toc_chapter_enter( chap )                for section in chap.sections:                self.toc_section_enter( section )                self.toc_section_exit( section )                self.toc_chapter_exit ( chap )            self.toc_index( index_filename )            self.toc_exit()        if output:            close_output( output )        #    #  Formatting the index    #    def  index_enter( self ):        pass    def  index_name_enter( self, name ):        pass    def  index_name_exit( self, name ):        pass    def  index_exit( self ):        pass    def  index_dump( self, index_filename = None ):                output = None        if index_filename:            output = open_output( index_filename )        self.index_enter()        for name in self.block_index:            self.index_name_enter( name )            self.index_name_exit ( name )        self.index_exit()             if output:            close_output( output )         #    #  Formatting a section    #    def  section_enter( self, section ):        pass        def  block_enter( self, block ):        pass        def  markup_enter( self, markup, block = None ):        pass        def  field_enter( self, field, markup = None, block = None ):        pass            def  field_exit( self, field, markup = None, block = None ):        pass        def  markup_exit( self, markup, block = None ):        pass            def  block_exit( self, block ):        pass    def  section_exit( self, section ):        pass    def  section_dump( self, section, section_filename = None ):                output = None        if section_filename:            output = open_output( section_filename )                self.section_enter( section )        for name in section.block_names:            block = self.identifiers[ name ]            self.block_enter( block )            for markup in block.markups[1:]:   # always ignore first markup !!                self.markup_enter( markup, block )                for field in markup.fields:                    self.field_enter( field, markup, block )                    self.field_exit ( field, markup, block )                self.markup_exit( markup, block )            self.block_exit( block )        self.section_exit ( section )        if output:            close_output( output )    def section_dump_all( self ):        for section in self.sections:            self.section_dump( section )    #    #  Formatting a block    #