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# -*- coding: iso-8859-1 -*-
"""
MoinMoin - DocBook-XML Parser
This code was tested with 4Suite 1.0a4 and 1.0b1
@copyright: 2005 Henry Ho <henryho167 AT hotmail DOT com>,
2005 MoinMoin:AlexanderSchremmer
@license: GNU GPL, see COPYING for details.
DOCBOOK Parser:
Features:
- image support through Attachment
- internal Wikilinks if a word is a strict wikiname
- image alt is perserved
- works with compiled xslt stylesheet for optimized performance
Configuration:
- make sure you have installed the DocBook XSLT files
- set the path to the html directory of the DocBook XSLT files in your
wiki or farm configuration:
docbook_html_dir = r"/usr/share/xml/docbook/stylesheet/nwalsh/html/"
Note that this directory needs to be writable because a cache file will
be created there.
>How can I use Ft API for DTD validation?
If you have PyXMl installed, you can use ValidatingReader rather than
NonvalidatingReader. See:
http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/domlettes
"""
import os.path
import cPickle
import re
from MoinMoin import Page
from MoinMoin.parser.text_xslt import Parser as XsltParser
from MoinMoin.parser.text_moin_wiki import Parser as WikiParser
Dependencies = []
class Parser(XsltParser):
"""
Send XML file formatted via XSLT.
"""
caching = 1
Dependencies = Dependencies
def __init__(self, raw, request, **kw):
XsltParser.__init__(self, raw, request)
# relative path to docbook.xsl and compiled_xsl
docbook_html_directory = request.cfg.docbook_html_dir
self.db_xsl = os.path.join(docbook_html_directory, 'docbook.xsl')
self.db_compiled_xsl = os.path.join(docbook_html_directory, 'db_compiled.dat')
self.wikiParser = WikiParser(raw=self.raw, request=self.request, pretty_url=1)
self.key = 'docbook'
def format(self, formatter):
self.wikiParser.formatter = formatter
XsltParser.format(self, formatter)
def append_stylesheet(self):
""""
virtual function, for docbook parser
"""
abs_db_xsl = os.path.abspath(self.db_xsl)
abs_db_compiled_xsl = os.path.abspath(self.db_compiled_xsl)
# same as path.exists, but also test if it is a file
if not os.path.isfile(abs_db_compiled_xsl):
_compile_xsl(abs_db_xsl, abs_db_compiled_xsl)
assert os.path.isfile(abs_db_compiled_xsl)
self.processor.appendStylesheetInstance(cPickle.load(file(abs_db_compiled_xsl, 'rb')))
def parse_result(self, result):
"""
additional parsing to the resulting XSLT'ed result (resultString) before saving
will do:
BASIC CLEAN UP : remove unnecessary HTML tags
RESOLVE IMG SRC : fix src to find attachment
RESOLVE WikiNames: if a word is a valid wikiname & a valid wikipage,
replace word with hyperlink
"""
# BASIC CLEAN UP
# remove from beginning until end of body tag
found = re.search('<body.*?>', result)
if found:
result = result[found.end():]
# remove everything after & including </body>
found = result.rfind('</body>')
if found != -1:
result = result[:found]
# RESOLVE IMG SRC
found = re.finditer('<img.*?>', result)
if found:
splitResult = _splitResult(found, result)
for index in range(len(splitResult)):
if splitResult[index].startswith('<img'):
found = re.search('src="(?P<source>.*?)"', splitResult[index])
imageSrc = found.group('source')
imageAlt = None # save alt
found = re.search('alt="(?P<alt>.*?)"', splitResult[index])
if found:
imageAlt = found.group('alt')
splitResult[index] = self.wikiParser.attachment(('attachment:' + imageSrc, ""))
if imageAlt: # restore alt
splitResult[index] = re.sub('alt=".*?"', 'alt="%s"' % imageAlt, splitResult[index])
result = ''.join(splitResult)
# RESOLVE WikiNames
# if a word is a valid wikiname & a valid wikipage,
# replace word with hyperlink
found = re.finditer(self.wikiParser.word_rule, result, re.UNICODE|re.VERBOSE)
if found:
splitResult = _splitResult(found, result)
for index in range(len(splitResult)):
if (re.match(self.wikiParser.word_rule, splitResult[index], re.UNICODE|re.VERBOSE)
and Page.Page(self.request, splitResult[index]).exists()):
splitResult[index] = self.wikiParser._word_repl(splitResult[index])
result = ''.join(splitResult)
# remove stuff that fail HTML 4.01 Strict verification
# remove unsupported attributes
result = re.sub(' target=".*?"| type=".*?"', '', result)
result = re.sub('<hr .*?>', '<hr>', result)
# remove <p>...</p> inside <a>...</a> or <caption>...</caption>
found = re.finditer('<a href=".*?</a>|<caption>.*?</caption>', result) # XXX re.DOTALL)
if found:
splitResult = _splitResult(found, result)
for index in range(len(splitResult)):
if (splitResult[index].startswith('<a href="')
or splitResult[index].startswith('<caption>')):
splitResult[index] = splitResult[index].replace('<p>', '').replace('</p>', '')
result = ''.join(splitResult)
return result
def _compile_xsl(XSLT_FILE, XSLT_COMPILED_FILE):
"""
compiling docbook stylesheet
reference: http://155.210.85.193:8010/ccia/nodes/2005-03-18/compileXslt?xslt=/akara/akara.xslt
"""
from Ft.Xml.Xslt.Processor import Processor
from Ft.Xml.Xslt import Stylesheet
from Ft.Xml import InputSource
from Ft.Lib import Uri
# New docbook processor
db_processor = Processor()
# Docbook Stylesheet
my_sheet_uri = Uri.OsPathToUri(XSLT_FILE, 1)
sty_isrc = InputSource.DefaultFactory.fromUri(my_sheet_uri)
# Append Stylesheet
db_processor.appendStylesheet(sty_isrc)
# Pickled stylesheet will be self.abs_db_compiled_xsl file
db_root = db_processor.stylesheet.root
fw = file(XSLT_COMPILED_FILE, 'wb')
cPickle.dump(db_root, fw) # , protocol=2)
fw.close()
def _splitResult(iterator, result):
startpos = 0
splitResult = []
for f in iterator:
start, end = f.span()
splitResult.append(result[startpos:start])
splitResult.append(result[start:end])
startpos = end
splitResult.append(result[startpos:])
return splitResult
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