Blogger Syntax Highlighting

The Problem:
I am still using Blogger.com to host my blog, which works pretty good, you just don't have too many options and no server control. This means I can't just include my scripts on the fly (for now). I have been working with my layout, client side syntax highlighting, and general look and feel of the blog and I am getting somewhat comfortable with it. For syntax highlighting I decided to go with syntaxhighlighter, a google code project written in javascript. It works well, it's just slow. The problem with doing using plugins and including the script right into your post is that I have to generate the html for each blog post... and I want them all to be consistent.

The Solution:
Wanting things to be as simple as possible for me to post and edit my new scripts I wanted a simple code generator. I wanted it to create the html for adding a collapsed code section with a link to the script on my server on the top. I like this format because you can copy it, read it or just download it. Maybe I'll edit the syntaxhighlighter so that it takes a link for downloading the code... but for now this works. Just for fun, here's the code for my code generator:
convert_script.pyfrom optparse import OptionParser<br />import time, logging, os, sys, string, shutil<br />import win32clipboard, win32con, random<br />from urllib2 import urlopen<br />from lxml import etree<br />from os import sep<br /><br />class SyntaxHighlight:<br /> def __init__(self, code, language):<br /> self.syntax = self.script_path = self.script = None<br /> self.code = code<br /> self.lang = language<br /> self.options = [language]<br /> <br /> def setOption(self, option):<br /> if option not in self.options:<br /> self.options.append(option)<br /> <br /> def removeOption(self, option):<br /> if option in self.options:<br /> self.options.remove(option)<br /> <br /> def setScript(self, script):<br /> if '/' in script:<br /> s = '/'<br /> elif '\\' in script:<br /> s = '\\'<br /> else:<br /> s = sep<br /> <br /> self.script = script.split(s)[-1]<br /> <br /> if 'http://' in script:<br /> self.script_path = script<br /> <br /> <br /> def getSyntax(self):<br /> options = ':'.join(self.options)<br /> <br /> self.syntax = ''<br /> if self.script_path is not None:<br /> self.syntax += '<a href="%s">%s</a>' %(self.script_path, self.script)<br /> elif self.script is not None:<br /> self.syntax += self.script<br /> <br /> # I had to break these up or it killed my generated script!<br /> self.syntax += '<' self.syntax += 'textarea name="code" class="%s" cols="60" rows="10">' %(options)<br /> self.syntax += self.code<br /> self.syntax += '</' self.syntax += 'textarea>' <br /> <br /> return self.syntax<br /><br />def getLanguage(script):<br /> ext_dict = {'py':'python', 'java':'java', 'groovy':'java', 'cs':'csharp', 'css':'css', 'php':'php', 'rb':'ruby', 'sql':'sql'}<br /> ext = script.split('.')[-1]<br /> if ext.lower() not in ext_dict.keys():<br /> return ext<br /> else:<br /> return ext_dict.get(ext)<br /><br />def setupLogging(level):<br /> if not os.access('log', os.F_OK):<br /> os.mkdir('log')<br /> logging.basicConfig(level=level,<br /> format='%(asctime)s [%(levelname)s] %(message)s',<br /> filename=os.path.abspath('log/convert_script.log'),<br /> filemode='w')<br /> # define a Handler which writes INFO messages or higher to the sys.stderr<br /> console = logging.StreamHandler()<br /> console.setLevel(level)<br /> # set a format which is simpler for console use<br /> formatter = logging.Formatter('%(name)-5s: [%(levelname)-5s] %(message)s')<br /> # tell the handler to use this format<br /> console.setFormatter(formatter)<br /> # add the handler to the root logger<br /> logging.getLogger('').addHandler(console)<br /> logger = logging.getLogger('ConvertScript')<br /> return logger<br /> <br />def main():<br /> # This method parses the options set at the command line and initializes the logger.<br /> parser = OptionParser()<br /> parser.add_option("-l", "--logging", type='int', dest="debug", help="LOG level. See http://docs.python.org/library/logging.html. Default: INFO", metavar="LOG", default=logging.INFO)<br /> parser.add_option("-s", "--script", type='string', dest="script", help="PATH to the script you want to include.", metavar="PATH", default=None)<br /> parser.add_option("", "--lang", type='string', dest="lang", help="Override the language the script is encoded in. Normally taken from the extension. Default: python", metavar="LANGUAGE", default='python')<br /> parser.add_option("", "--code", type='string', dest="code", help="Simple Code. If used you must also specify the --lang", metavar="CODE", default=None)<br /> parser.add_option('-g', '--no-gutter', action="store_true", dest="nogutter")<br /> parser.add_option('-c', '--no-controls', action="store_true", dest="nocontrols")<br /> parser.add_option('-f', '--first-line', type='int', dest="firstline", help="First line to start counting from.", metavar="CODE", default=None)<br /> parser.add_option('-n', '--show-columns', action="store_true", dest="showcolumns")<br /> opts, args = parser.parse_args()<br /> opts.collapse = None<br /> logger = setupLogging(opts.debug)<br /> return opts, args, logger<br /><br />if __name__ == "__main__":<br /> opts, args, logger = main()<br /> if opts.script is None and opts.code is None:<br /> logger.critical('Neither Script nor Code provided. Please specify a script (--script=PATH) or code (--code=CODE) command line option')<br /> sys.exit(1)<br /> <br /> if opts.code is not None and opts.lang is None:<br /> logger.critical('You must specify the language (--lang=LANGUAGE) when specifying code on the command line.')<br /> <br /> if opts.lang is None:<br /> opts.lang = getLanguage(opts.script)<br /> logger.debug('Setting Language Extension to: %s' %opts.lang)<br /> <br /> if opts.code:<br /> opts.nogutter = True<br /> opts.nocontrols = True<br /> code = opts.code<br /> else:<br /> opts.collapse = True<br /> if 'http://' in opts.script:<br /> f = urlopen(opts.script)<br /> else:<br /> f = open(opts.script)<br /> code = f.read()<br /> f.close()<br /> <br /> syntax = SyntaxHighlight(code, opts.lang)<br /> <br /> if opts.script is not None:<br /> syntax.setScript(opts.script)<br /> <br /> if opts.nogutter:<br /> syntax.setOption('nogutter')<br /> <br /> if opts.nocontrols:<br /> syntax.setOption('nocontrols')<br /> <br /> if opts.collapse:<br /> syntax.setOption('collapse')<br /> <br /> if opts.firstline is not None:<br /> syntax.setOption('firstline[%i]' %opts.firstline)<br /> <br /> if opts.showcolumns:<br /> syntax.setOption('showcolumns')<br /> <br /> syntax = syntax.getSyntax()<br /> logger.debug('Syntax: \n%s' %syntax)<br /> win32clipboard.OpenClipboard()<br /> win32clipboard.EmptyClipboard()<br /> win32clipboard.SetClipboardText(syntax)<br /> win32clipboard.CloseClipboard()<br />
Note: The html for the presentation of my code generator on my blog was created by this script...

Further Explanation:
So in essence, all I have to do is point the script at a file on my server and bam! the code is in the clipboard! I love it. It supports code snippits and local or web script files. You can also add options for the syntaxhighlighter javascript. Yea... it's a bit rough, but what do you expect in under an hour...