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latex2wiki.py
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#!/usr/bin/python
#
# File: latex2wiki.py
# Date: 30-Sep-09
# Author: I. Chuang <[email protected]>
#
# Note: edit mediawiki math/texutil.ml to include the line
# | "\\rule" -> (tex_use_ams () ; FUN_AR2 "\\rule ")
# near the similar dfrac line
#
# 28-Oct-09 add matrix environment, wikitext command
# 30-Oct-09 add multi-level lists, wiki option on inlinepsfig, fix unicode forward quote
# 24-Sep-10 fix $a_x$ -> <math>a_ x</math> problem
import os, sys, string, time, re
from plasTeX import Base
from plasTeX.Renderers import Renderer
from plasTeX.TeX import TeX
footnotetab = []
class BOX(Base.Command):
""" \BOX{ref}{label}{caption} """
args = 'ref label caption'
def invoke(self, tex):
Base.Command.invoke(self, tex)
class wikitext(Base.Command):
""" \wikitext{wiki_text} """
args = 'wikitext'
def invoke(self, tex):
Base.Command.invoke(self, tex)
class inlinepsfig(Base.Command):
""" \inlinepsfig{file}{size} """
args = 'file size'
def invoke(self, tex):
Base.Command.invoke(self, tex)
class matrix(Base.Environment):
args = ''
def invoke(self, tex):
Base.Environment.invoke(self,tex)
class Renderer(Renderer):
#def do_math(self,node):
# return '<math>%s</math>' % node.source
def fixmath(self,ns):
# fix $a_x$ -> <math>a_ x</math> problem
ns = re.sub('(.)_ ([A-Za-z])','\\1_\\2',ns)
# fix bf -> mathbf
ns = ns.replace('\\bf ','\\mathbf ')
# fix em -> delete
ns = ns.replace('\\em ','')
# fix cal -> mathcal
ns = ns.replace('\\cal ','\\mathcal ')
# fix lefteqn -> &
ns = ns.replace('\\lefteqn','&')
# no funny e's
ns = ns.replace('\\`{e}','e')
# fix \mbox{$foo$} problem
#m = re.search('(.*)\\mbox{\$(.*)\$}(.*)'
#ns = ns.replace('\\mbox{','{\\rm ')
def fixspace(m):
m1 = m.group(1).replace(' ','~')
return('{\\rm %s}' % m1)
ns = re.sub(r'\\mbox{([^}]+)}',fixspace,ns)
# remove hspace*
ns = re.sub(r'\\hspace\*{[^}]+}','',ns)
ns = re.sub(r'\\hspace{[^}]+}','',ns)
return(ns)
def default(self, node):
""" Rendering method for all non-text nodes """
s = []
# Handle characters like \&, \$, \%, etc.
if len(node.nodeName) == 1 and node.nodeName not in string.letters:
return self.textDefault(node.nodeName)
procset = [
('center','<center>','</center>'),
('quote','<blockquote>','</blockquote>'),
('em',"''","''"),
('bf',"'''","'''"),
('document','',''),
('enumerate','<ul>','</ul>'),
('itemize','<ul>','</ul>'),
('bgroup','',''),
('hline','',''),
('proof','',''),
('verbatim','<pre>','</pre>'),
('notes','',''),
('vspace','',''),
('vskip','',''),
('textsc','',''),
('hrule','',''),
('underline','',''),
('flushleft','',''),
('copyright','',''),
('def','',''), # leftover after ifCUP?
('sc','<font color=green>','</font>'),
('hspace','',''),
('noindent','',''),
('par','','\n\n'),
('active::~',' ',''),
]
list_procset = ['enumerate','itemize']
def do_section_type(sep):
#s = '\n==== %s ====\n %s' % (node.attributes['title'],unicode(node))
#return s
s.append('<br style="clear: both" />\n%s %s %s\n' % (sep,node.attributes['title'],sep))
s2 = unicode(node)
if (s2[0]==' '):
s2 = s2[1:]
s.append(s2) # recurse
if (node.nodeName=='document'):
s.append(unicode(node)) # recurse
s = u'\n'.join(s)
s = s.replace('\n <span','\n<span')
s = s.replace('</center>\n\n ','</center>\n\n')
s = s.replace('</blockquote>\n\n ','</blockquote>\n\n')
s = s.replace('\n\n<li>','\n<li>')
s = s.replace('\n\n<li>','\n<li>')
s = s.replace('\n\n<ul>','\n<ul>')
s = s.replace('\n\n<ul>','\n<ul>')
s = s.replace('\n\n</ul>','\n</ul>')
s = s.replace('\n\n</ul>','\n</ul>')
s = s.replace('</ul>\n\n','</ul>\n')
s = s.replace('</ul>\n\n','</ul>\n')
s = s.replace('</ul>\n ','</ul>\n')
s = s.replace('</pre>\n\n ','</pre>\n\n')
s = s.replace('</pre>\n ','</pre>\n')
s = s.replace('\n\n\n<item>','\n\n<item>')
s = s.replace('\n<item>','<br style="clear: both" />\n\n*')
s = s.replace(u'\u2018',"''") # unicode single forward quote
s = s.replace(u'\u2019',"'") # unicode single quote
s = s.replace(u'\u201d',"''") # unicode double quote
s = s.replace('</math>\n\n ','</math>\n\n')
s = s.replace('<ENDMATH>\n\n ','\n\n')
s = s.replace('<ENDMATH>\n ','\n')
s = s.replace('<ENDMATH>\n','\n')
s = s.replace('<END>\n\n\n ','\n\n')
s = s.replace('<END>\n\n ','\n\n')
s = s.replace('<END>\n ','\n')
s = s.replace('<END>\n','\n')
if len(footnotetab)>0:
s = s + "==== Footnotes ====\n"
#s = s + '<references group="note"/>\n'
s = s + '<references />\n'
if s[0]==' ':
s = s[1:]
return s
elif (node.nodeName=='section'):
do_section_type('==')
return u'\n'.join(s)
elif (node.nodeName=='subsection'):
do_section_type('===')
return u'\n'.join(s)
elif (node.nodeName=='subsubsection'):
do_section_type('====')
return u'\n'.join(s)
elif (node.nodeName=='index'):
#s.append('<span id="%s"></span>' % string.join(node.attributes['entry'],''))
s.append('<span id="%s"></span>' % node.source)
return u'\n'.join(s)
elif (node.nodeName=='label'):
#s = ('<span id="label:%s"></span>' % node.attributes['label'])
s = ('<span id="%s"></span>' % node.attributes['label'])
return(s)
elif (node.nodeName=='ref'):
an = node.source[5:-1] # anchor name
#s = '[[{{SUBPAGENAME}}#label:%s|%s]]' % (an,an)
s = '[[{{SUBPAGENAME}}#%s|%s]]' % (an,an)
return(s)
elif (node.nodeName=='item'):
#itemtxt = unicode(node).replace('\n\n','\n')
itemtxt = unicode(node)
s.append('<li> %s\n' % itemtxt)
return u'\n'.join(s)
# psfig (inline)
elif (node.nodeName=='inlinepsfig'):
#print "in psfig: "
n_file = node.attributes['file']
n_size = node.attributes['size']
#for key, value in node.attributes.items():
# print " attribute ",key," = ",value
#print node.source
#s = '[[Image:%s|thumb|600px|]]' % (n_file)
m = re.search('wiki:(.*)',unicode(n_size))
if m:
opts = m.group(1)
else:
opts = ''
s = '[[Image:%s|%s]]' % (n_file,opts)
return(s)
# table
elif (node.nodeName=='table'):
caption = ''
for k in node.allChildNodes:
if (k.nodeName=='caption'):
#caption = k.source[9:-1]
caption = unicode(k).replace('\n',' ')
#print "caption = ",caption
kcn = k
#node.allChildNodes.remove(kcn)
ns = node.source
#print "table: allChildNodes ",repr(node.allChildNodes)
#print "node: ",dir(node)
ntxt = unicode(node)
ntxt2 = ''
mode = 0
for k in ntxt.split('\n'):
if k.count('<caption>'):
#print "caption line found: ",k
mode = 1
if mode==0:
ntxt2 += k + '\n'
if k.count('</caption>'):
mode = 0
s = '<table align=right style="width:auto; border: 1px solid #aaa; font-size: 100%; padding: 4px; margin: 0.5em 0 0.8em 1.4em; float: right; clear: right; background: #f9f9f9;">\n'
s += '<tr><td>%s</td></tr>\n' % ntxt2
s += '<tr><td>%s</td></tr>\n' % caption
s += '</table><END>\n' # "<END>" to get rid of following space
#print "Table: ",s
#print "-----------"
return(s)
# tabular
elif (node.nodeName=='tabular'):
#print "in tabular: "
#print dir(node)
s.append('<table border=1>')
for k in node.childNodes: # should be ArrayRow's
if (k.nodeName=='ArrayRow'):
s.append('<tr>')
for m in k.childNodes: # should be ArrayCell
if (m.nodeName=='ArrayCell'):
s.append('<td>%s</td>' % unicode(m).rstrip())
s.append('</tr>')
s.append('</table>')
return u'\n'.join(s)
# wikitext
elif (node.nodeName=='wikitext'):
ns = node.source[1:-1]
s = '%s' % ns.replace('wikitext{','')
return(s)
# BOX (special for NC00)
elif (node.nodeName=='BOX'):
#print "in Box: "
#for k in node.allChildNodes:
# print "box child: ",k.nodeName
n_ref = node.attributes['ref']
n_label = node.attributes['label']
#n_caption = unicode(node.attributes['caption']).replace('\n',' ')
n_caption = unicode(node.attributes['caption'])
s.append('<table border="1" style="width:75%; color:blue" align="center">')
s.append('<tr align=center><td>%s</td></tr>' % n_label)
s.append('<tr><td>%s' % n_caption)
s.append('</td></tr></table>')
return u'\n'.join(s)
# footnote
elif (node.nodeName=='footnote'):
#print "math dir: ",dir(node)
print "footnote node: ",node.source
ns = node.source[1:-1]
# get footnote number
num = "num%d" % node.attributes['num']
print "footnote num: ",num
footnotetab.append(num)
# render
#s.append('<ref group="note" name="%s">%s</ref>' % (num,unicode(node)))
s.append('<ref name="%s">%s</ref>' % (num,unicode(node)))
return u'\n'.join(s)
# math
elif (node.nodeName=='math'):
# print "math dir: ",dir(node)
# print "math node: ",node.source
ns = node.source[1:-1]
ns = self.fixmath(ns)
s = '<math>%s</math>' % ns
return(s)
elif (node.nodeName=='displaymath'):
ns = node.source[2:-2]
# print "displaymath node: ",ns[2:-2]
ns = self.fixmath(ns)
s = '<math>%s</math>' % ns
return(s)
elif (node.nodeName=='eqnarray'):
ns = node.source.replace('eqnarray','align')
ns = ns.replace('\\nonumber','')
ns = self.fixmath(ns)
# check to see if it uses a label; if so, use template
if (ns.count('\\label')>0):
m = re.search('(.*)\label{([^}]+)}(.*)',ns)
math = m.group(1) + ' ' + m.group(3)
# remove other instances of label (FIXME)
math = re.sub(r'\\label{([^}]+)}','',math)
label = m.group(2)
s = '<br style="clear: both" />\n'
s += '{{EqL\n|math=<math>%s</math>\n|num=%s\n}}<ENDMATH>' % (math.replace('\n',' '),label)
else:
s = ':<math>%s</math>' % ns
return(s)
elif (node.nodeName=='equation'):
ns = node.source.replace('equation','align')
ns = ns.replace('\\nonumber','')
#print "math equation node: ",node.source
ns = self.fixmath(ns)
#print "ns: ",ns
# check to see if it uses a label; if so, use template
if (ns.count('\\label')>0):
m = re.search('(.*)\label{([^}]+)}(.*)',ns)
math = m.group(1) + ' ' + m.group(3)
label = m.group(2)
s = '{{EqL\n|math=<math>%s</math>\n|num=%s\n}}<ENDMATH>' % (math.replace('\n',' '),label)
else:
s = ':<math>%s</math>' % ns
return(s)
# figures (assume simple figure format)
elif (node.nodeName=='figure'):
#print dir(node)
#print node.allChildNodes
caption = ''
for k in node.allChildNodes:
if (k.nodeName=='caption'):
#caption = k.source[9:-1]
caption = unicode(k).replace('\n',' ')
#print "caption = ",caption
ns = node.source
#print "in figure, source = ",ns
if (ns.count('\\psfig')>1):
print "Oops! figure too complex: ",ns
m = re.search('\\psfig\s*{file=([^},]+)([^}]*)}',ns)
if m:
fn = m.group(1)
#fn = m.group(1).replace('/',':')
size = m.group(2)
else:
m = re.search('\\includegraphics\s*\[([^]]+)\]{([^}]+)}',ns)
if m:
fn = m.group(2)
size = m.group(1)
else:
print "error in figure: ",ns
#m = re.search('\\caption\s*{([^}]+)}',ns)
#if m:
# caption = m.group(1)
#else:
# caption = ''
m = re.search('\\label\s*{([^}]+)}',ns)
if m:
label = '<span id="%s"></span>\n' % m.group(1)
else:
label = ''
#s = label + '[[Image:%s|frame|thumb|600px|%s]]' % (fn,caption)
s = label + '[[Image:%s|thumb|600px|%s]]' % (fn,caption)
return(s)
# simple nodes
else:
for name, stag, etag in procset: # handle simple node processing
if (node.nodeName==name):
s.append(stag + unicode(node) + etag)
return u'\n'.join(s)
# unknown tag - just output
s.append('<%s>' % node.nodeName)
if node.hasAttributes():
s.append('<attributes>')
for key, value in node.attributes.items():
# If the key is 'self', don't render it
# these nodes are the same as the child nodes
if key == 'self':
continue
s.append('<%s>%s</%s>' % (key, unicode(value), key))
s.append('</attributes>')
s.append(unicode(node)) # recurse
s.append('</%s>' % node.nodeName)
return u'\n'.join(s)
def textDefault(self, node):
""" Rendering method for all text nodes """
return node.replace('&','&').replace('<','<').replace('>','>')
# Instantiate a TeX processor and parse the input text
fn = sys.argv[1]
print "fn=",fn
tex = TeX()
tex.ownerDocument.config['files']['split-level'] = -100
tex.ownerDocument.config['files']['filename'] = fn+'.wiki'
tex.ownerDocument.context.importMacros({1:BOX})
tex.ownerDocument.context.importMacros({2:inlinepsfig})
tex.ownerDocument.context.importMacros({3:matrix})
tex.ownerDocument.context.importMacros({4:wikitext})
ifn = fn + '.tex'
tex.input(open(ifn).read())
document = tex.parse()
# Render the document
renderer = Renderer()
renderer.render(document)
#print document