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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2008-2018 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/>.
"""
Wiki markup to plain text translator.
Classes:
TextWikiMarkup -- Converts Wiki material to plain text.
TextWiktionaryMarkup -- Reserved for future use. Currently does the same as
TextWikiMarkup.
"""
from wikitrans.wikitoken import *
from wikitrans.wikimarkup import *
from wikitrans.wikins import wiki_ns_re, wiki_ns
import re
try:
from urllib import quote as url_quote
except ImportError:
from urllib.parse import quote as url_quote
class TextSeqNode(WikiSeqNode):
def format(self):
string = ""
for x in self.content:
if len(string) > 1 and not string[-1].isspace():
string += ' '
string += x.format()
return string
class TextTextNode(WikiTextNode):
def format(self):
if isinstance(self.content,list):
string = ""
for s in self.content:
if string:
if string.endswith("."):
string += " "
else:
string += " "
string += s
else:
string = self.content
return string
class TextPreNode(WikiSeqNode):
def format(self):
string = ""
for x in self.content:
string += x.format()
string += '\n'
return string
class TextParaNode(WikiSeqNode):
def format(self):
string = ""
for x in self.content:
string += x.format()
string = self.parser.fmtpara(string) + '\n\n'
return string
class TextItNode(WikiSeqNode):
def format(self):
string = ""
for x in self.content:
s = x.format()
if s:
string += " " + s
return "_" + string.lstrip(" ") + "_"
class TextBoldNode(WikiSeqNode):
def format(self):
string = ""
for x in self.content:
if string.endswith("."):
string += " "
else:
string += " "
string += x.format()
return string.upper()
class TextLinkNode(WikiSeqNode):
def format(self):
arg = self.content[0].format()
if len(self.content) > 1:
s = [x for x in map(lambda x: x.format(), self.content)]
text = s[1]
else:
s = None
text = None
if s:
if s[0] == 'disambigR' or s[0] == 'wikiquote':
return ""
if len(s) > 1 and s[1] == 'thumb':
return ""
(qual,sep,tgt) = arg.partition(':')
if tgt != '':
ns = self.parser.wiki_ns_name(qual)
if ns:
if ns == 'NS_IMAGE':
if not self.parser.show_urls:
return ""
text = "[%s: %s]" % (qual, text if text else arg)
tgt = "%s/%s/250px-%s" % (self.image_base,
url_quote(tgt),
url_quote(tgt))
elif ns == 'NS_MEDIA':
text = "[%s]" % (qual)
else:
tgt = self.parser.mktgt(tgt)
elif self.type == 'LINK' and qual in self.parser.langtab:
text = self.parser.langtab[qual] + ": " + tgt
tgt = self.parser.mktgt(tgt, qual)
else:
tgt = self.parser.mktgt(tgt)
else:
tgt = self.parser.mktgt(arg)
if self.parser.show_urls:
return "%s (see %s) " % (text, tgt)
elif not text or text == '':
return arg
else:
return text
class TextTmplNode(TextLinkNode):
def format(self):
return '[' + super(TextTmplNode, self).format() + ']'
class TextBarNode(WikiNode):
def format(self):
w = self.parser.width
if w < 5:
w = 5
return "\n" + ("-" * (w - 5)).center(w - 1) + "\n"
class TextHdrNode(WikiHdrNode):
def format(self):
return ("\n"
+ ("*" * self.level)
+ " "
+ self.content.format().lstrip(" ")
+ "\n\n")
class TextRefNode(WikiRefNode):
def format(self):
text = self.content.format()
if text:
return "%s (see %s) " % (text, self.ref)
else:
return "see " + self.ref
class TextEnvNode(WikiEnvNode):
def format(self):
type = self.envtype
lev = self.level
if lev > self.parser.width - 4:
lev = 1
string = ""
n = 1
for s in self.content:
if not string.endswith("\n"):
string += "\n"
x = s.content.format()
if type == "unnumbered":
string += self.parser.indent(lev, "- " + x.lstrip(" "))
elif type == "numbered":
string += self.parser.indent(lev, "%d. %s" % (n, x))
n += 1
elif type == "defn":
if s.subtype == 0:
string += self.parser.indent(lev-1, x)
else:
string += self.parser.indent(lev+3, x)
if not string.endswith("\n"):
string += "\n"
return string
class TextIndNode(WikiIndNode):
def format(self):
return (" " * self.level) + self.content.format() + '\n'
class TextTagNode(WikiTagNode):
def format(self):
if self.tag == 'code':
self.parser.nested += 1
s = self.content.format()
self.parser.nested -= 1
elif self.tag == 'ref':
s = '[%d]' % (self.idx+1)
elif self.tag == 'references':
s = '\nReferences:\n'
for ref in self.parser.references:
s += ('[%d]. ' % (ref.idx+1)) + ref.content.format() + '\n'
else:
s = '<' + self.tag
if self.args:
s += ' ' + str(self.args)
s += '>' + self.content.format() + '</' + self.tag + '>'
return s
class TextWikiMarkup(WikiMarkup):
"""A Wiki markup to plain text translator.
Usage:
x = TextWikiMarkup(file="input.wiki")
# Parse the input:
x.parse()
# Print it as plain text:
print(str(x))
"""
# Output width
width = 78
# Do not show references.
show_urls = False
# Provide a minimum markup
markup = True
# Number of current element in the environment
num = 0
# Array of footnote references
references = []
def __init__(self, *args, **keywords):
"""Create a TextWikiMarkup object.
TextWikiMarkup([filename=FILE],[file=FD],[text=STRING],[lang=CODE],
[html_base=URL],[image_base=URL],[media_base=URL],
[width=N],[show_urls=False])
Most arguments have the same meaning as in the WikiMarkup constructor.
Class-specific arguments:
width=N
Limit output width to N columns. Default is 78.
show_urls=False
By default, the link URLs are displayed in parentheses next to the
link text. If this argument is given, only the link text will be
displayed.
"""
super(TextWikiMarkup,self).__init__(*args, **keywords)
if 'width' in keywords:
self.width = keywords['width']
if 'show_urls' in keywords:
self.show_urls = keywords['show_urls']
self.token_class['SEQ'] = TextSeqNode
self.token_class['TEXT'] = TextTextNode
self.token_class['PRE'] = TextPreNode
self.token_class['PARA'] = TextParaNode
self.token_class['SEQ'] = TextSeqNode
self.token_class['IT'] = TextItNode
self.token_class['BOLD'] = TextBoldNode
self.token_class['LINK'] = TextLinkNode
self.token_class['TMPL'] = TextTmplNode
self.token_class['BAR'] = TextBarNode
self.token_class['HDR'] = TextHdrNode
self.token_class['REF'] = TextRefNode
self.token_class['ENV'] = TextEnvNode
self.token_class['IND'] = TextIndNode
self.token_class['TAG'] = TextTagNode
def wiki_ns_name(self, str):
if str in wiki_ns[self.lang]:
return wiki_ns[self.lang][str]
elif str in wiki_ns_re[self.lang]:
for elt in wiki_ns_re[self.lang][str]:
if str.beginswith(elt[0]) and str.endswith(elt[1]):
return elt[2]
return None
def mktgt(self, tgt, lang = None):
if not lang:
lang = self.lang
return self.html_base % { 'lang' : lang } + url_quote(tgt)
def indent(self, lev, text):
if text.find('\n') == -1:
s = (" " * lev) + text
else:
s = ""
for elt in text.split('\n'):
if elt:
s += (" " * lev) + elt + '\n'
if not text.endswith('\n'):
s = s.rstrip('\n')
return s
def fmtpara(self, input):
output = ""
linebuf = ""
length = 0
for s in input.split():
wlen = len(s)
if len(linebuf) == 0:
wsc = 0
elif linebuf.endswith("."):
wsc = 2
else:
wsc = 1
if length + wsc + wlen > self.width:
# FIXME: fill out linebuf
output += linebuf + '\n'
wsc = 0
length = 0
linebuf = ""
linebuf += " " * wsc + s
length += wsc + wlen
return output + linebuf
def __str__(self):
str = ""
for elt in self.tree:
str += elt.format()
return str
class TextWiktionaryMarkup(TextWikiMarkup):
"""A class for translating Wiktionary articles into plain text.
Reserved for future use. Currently does the same as TextWikiMarkup.
"""
html_base='http://%(lang)s.wiktionary.org/wiki/'
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