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path: root/WikiTrans/wikitoken.py
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# Wiki tokens. -*- coding: utf-8 -*-
# Copyright (C) 2015-2018 Sergey Poznyakoff
# 
# 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 3, 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, see <http://www.gnu.org/licenses/>.

from __future__ import print_function
import re
import json

class WikiNodeEncoder(json.JSONEncoder):
    def default(self, obj):
        if isinstance(obj,WikiNode):
            return obj.jsonEncode()
        return json.JSONEncoder.default(self, obj)

def jsonencoder(func):
    def _mkencoder(self):
        json = func(self)
        json['wikinode'] = self.__class__.__name__
        json['type'] = self.type
        return json
    return _mkencoder
    
class WikiNode(object):
    type = 'UNDEF'
    parser = None
    def __init__(self, parser, **kwargs):
        self.parser = parser
        for key in kwargs:
            if hasattr(self,key):
                self.__dict__[key] = kwargs[key]
            else:
                raise AttributeError("'%s' has no attribute '%s'" % (self.__class__.__name__, key))
    
    def __str__(self):
        return json.dumps(self, cls=WikiNodeEncoder, sort_keys=True)
    
    @jsonencoder
    def jsonEncode(self):
        ret = {}
        for x in dir(self):
            if x == 'parser' or x.startswith('_') or type(x) == 'function':
                continue
            if x in self.__dict__:
                ret[x] = self.__dict__[x]
        return ret

    def format(self):
        pass

class WikiContentNode(WikiNode):
    content = None
    @jsonencoder
    def jsonEncode(self):
        ret = {}
        if self.content:
            if self.type == 'TEXT':
                ret['content'] = self.content
            elif isinstance(self.content,list):
                ret['content'] = map(lambda x: x.jsonEncode(), self.content)
            elif isinstance(self.content,WikiNode):
                ret['content'] = self.content.jsonEncode()
            else:
                ret['content'] = self.content
        else:
            ret['content'] = None
        return ret

class WikiSeqNode(WikiContentNode):
    def format(self):
        for x in self.content:
            x.format()
    @jsonencoder
    def jsonEncode(self):
        ret = {}
        if not self.content:
            ret['content'] = None
        elif isinstance(self.content,list):
            ret['content'] = map(lambda x: x.jsonEncode(), self.content)
        elif isinstance(self.content,WikiNode):
            ret['content'] = self.content.jsonEncode()
        else:
            ret['content'] = self.content
        return ret

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

class WikiTextNode(WikiContentNode):
    type = 'TEXT'
    @jsonencoder
    def jsonEncode(self):
        return {
            'content': self.content
        }

class WikiDelimNode(WikiContentNode):
    type = 'DELIM'
    isblock=False
    continuation = False        

class WikiTagNode(WikiContentNode):
    tag = None
    isblock = False
    args = None
    @jsonencoder
    def jsonEncode(self):
        return {
            'tag': self.tag,
            'isblock': self.isblock,
            'args': self.args.tab if self.args else None,
            'content': self.content.jsonEncode()
        }

class WikiRefNode(WikiContentNode):
    type = 'REF'
    ref = None
    @jsonencoder
    def jsonEncode(self):
        return {
            'ref': self.ref,
            'content': self.content.jsonEncode()
        }

class WikiHdrNode(WikiContentNode):
    type = 'HDR'
    level = None
    @jsonencoder
    def jsonEncode(self):
        return {
            'level': self.level,
            'content': self.content.jsonEncode()
        }
    
class WikiEltNode(WikiContentNode):
    type = 'ELT'
    subtype = None
    @jsonencoder
    def jsonEncode(self):
        return {
            'subtype': self.subtype,
            'content': self.content.jsonEncode()
        }

class WikiEnvNode(WikiContentNode):
    type = 'ENV'
    envtype = None
    level = None
    @jsonencoder
    def jsonEncode(self):
        return {
            'envtype': self.envtype,
            'level': self.level,
            'content': map(lambda x: x.jsonEncode(), self.content)
        }

class WikiIndNode(WikiContentNode):
    type = 'IND'
    level = None
    @jsonencoder
    def jsonEncode(self):
        return {
            'level': self.level,
            'content': self.content.jsonEncode()
        }



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