ANN: cssutils v0.51 Released
chris
csad7@yahoo.com
Mon, 12 Apr 2004 18:02:41 +0200
what is it
----------
A Python package to parse and build CSS Cascading Style Sheets.
Partly implement the DOM Level 2 CSS interfaces. Additional some
cssutils only convenience and (hopefully) more pythonic methods are
integrated.
Thanks to Cory Dodt for helpful suggestions and some code patches and
to David Mertz for his book "Text Processing in Python" and the included
statemachine.py which is used for cssutils
kind request
Cssutils are far from being perfect or even complete, if you find
bugs or have suggestions or problems please contact me.
changes in this release
-----------------------
there have been quite a few changes since the last release, for full
details please see the changes.txt. But I think the API will be more
stable from now on.
NEW
- implemented at least partly almost all DOM Level 2 CSS interfaces now
- complete rewrite of CSSParser including logging
CSSParser writes all error messages to a log now.
you can provide your own log.
CSSParser might be configured just to log errors or to raise
xml.dom.DOMExceptions when finding any bug
- most classes shifted to other submodules.
please use the stable main modules
cssutils.cssparser for parsing
cssutils.cssbuilder for building
only
- added unittests for most classes
- made a distribution package complete with setup.py
API CHANGES
- attribute style of class StyleRule made private (_style)
- REMOVED StyleRule.clearStyleDeclaration()
- REMOVED class Selector, integrated into rules now
- DEPRECATED StyleDeclaration.addProperty
- DEPRECATED cssrule.SimpleAtRule and empty now
use subclasses of CSSRule (CharsetRule, ImportRule,
FontFaceRule or PageRule) instead
- cssmediarule.MediaRule init parameter "medias" renamed to "media"
- Comment attribute "comment" renamed to "text"
- StyleSheet.getRules() returns a RuleList now
license
-------
cssutils is published under the LGPL.
download
--------
download cssutils v0.51 - 040412 from http://cthedot.de/cssutils/
Needs Python 2.3. Uses xml.dom.DOMException and subclasses so may
need PyXML. Tested with Python 2.3.3 on Windows XP with PyXML 0.8.3
installed.
examples
--------
parse a CSSStyleSheet
Normally a CSS parser should ignore errors in a CSS stylesheet. So
the default instantiation of CSSParser (parameter raiseExceptions=False)
does not raise any exceptions but writes all errors in a parsed CSS to a
log file now. You might provide your own log with parameter log=YOURLOG.
This example does not use the log but would stop on the first error.
from cssutils.cssparser import CSSParser
p = CSSParser(raiseExceptions=True)
try:
css = p.parseString('body { color :red }')
# or p.parse('filename.css')
except xml.dom.DOMException, e:
print e
css.pprint() # prettyprinter s.b.
outputs
body {
color: red;
}
build a new CSSStyleSheet
Not all interfaces of DOM Level 2 CSS are implemented yet. But they
will be provided in future versions of the cssbuilder module.
The following is a simple example how to build a CSSStyleSheet object.
from cssutils.cssbuilder import *
# init CSSStylesheet
css = StyleSheet()
# build a rule
r = StyleRule()
r.addSelector('body')
r.addSelector('b') # a second one
d = StyleDeclaration()
d.setProperty('color', 'red') # old addProperty is DEPRECATED
r.setStyleDeclaration(d)
# build @media Rule
mr = MediaRule(' print, tv ')
d = StyleDeclaration()
d.setProperty('color', '#000')
r = StyleRule('body', d)
mr.addRule(r)
# compose stylesheet
css.addComment('basic styles')
css.addComment('styles for print or tv')
css.addRule(mr)
css.insertRule(r, 1)
# output
css.pprint(2)
outputs
/* basic styles */
body, b {
color: red;
}
/* styles for print or tv */
@media print, tv {
body {
color: #000;
}
}
thanks
christof hoeke http://cthedot.de
<P><A HREF="http://cthedot.de/cssutils/">cssutils 0.51</A> - a CSS
Cascading Style Sheets library for Python (12-Apr-04)