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#!/usr/bin/env python
# -*- coding: UTF-8 -*-
"""
    MoinMoin - Python Source Parser
"""

# Imports
import cgi, string, sys, cStringIO
import keyword, token, tokenize
import os


##############################################
### Python Source Parser (does Hilighting) ###
##############################################

_KEYWORD = token.NT_OFFSET + 1
_TEXT    = token.NT_OFFSET + 2

_colors = {
    token.NUMBER:       '#0080C0',
    token.OP:           '#0000C0',
    token.STRING:       '#004080',
    tokenize.COMMENT:   '#008000',
    token.NAME:         '#000000',
    token.ERRORTOKEN:   '#FF8080',
    _KEYWORD:           '#C00000',
    _TEXT:              '#000000',
}


class Parser:
    """ Send colored python source.
    """

    def __init__(self, raw, out = sys.stdout):
        """ Store the source text.
        """
        self.raw = string.strip(string.expandtabs(raw))
        self.out = out
        self.imports = False
        self.froms = False
        self.module = ""

    def format(self, formatter, form):
        """ Parse and send the colored source.
        """
        # store line offsets in self.lines
        self.lines = [0, 0]
        pos = 0
        while 1:
            pos = string.find(self.raw, '\n', pos) + 1
            if not pos: break
            self.lines.append(pos)
        self.lines.append(len(self.raw))

        # parse the source and write it
        self.pos = 0
        text = cStringIO.StringIO(self.raw)
        self.out.write('<pre><font face="Lucida,Courier New">')
        try:
            tokenize.tokenize(text.readline, self)
        except tokenize.TokenError, ex:
            msg = ex[0]
            line = ex[1][0]
            self.out.write("<h3>ERROR: %s</h3>%s\n" % (
                msg, self.raw[self.lines[line]:]))
        self.out.write('</font></pre>')

    def __call__(self, toktype, toktext, (srow,scol), (erow,ecol), line):
        """ Token handler.
        """
        baseurl = 'http://www.python.org/doc/current/lib/module-'
        if toktype == token.NAME and toktext == 'from':
            self.froms = True
            self.module = ""
        elif self.froms and toktype == token.NAME:
            self.module = toktext+"."
        elif toktype == token.NEWLINE:
            self.imports = False
            self.module = ""
        elif toktype == token.NAME and toktext == 'import':
            self.imports = True

        ext = ""

        if toktext+".py" in localfiles:
            baseurl = 'http://www.databassen.dk:8090/bauerdata/python-program-eksempler/'
            ext = ".py"
            baseurl = 'http://localhost:9999/'
            ext = ""
            baseurl = 'http://localhost:9999/'

        module = self.module

        if 1: # XXX
            print "type", toktype, token.tok_name[toktype], "text", toktext,
            print "start", srow,scol, "end", erow,ecol, "<br>"

        # calculate new positions
        oldpos = self.pos
        newpos = self.lines[srow] + scol
        self.pos = newpos + len(toktext)

        # handle newlines
        if toktype in [token.NEWLINE, tokenize.NL]:
            self.out.write('\n')
            return

        # send the original whitespace, if needed
        if newpos > oldpos:
            self.out.write(self.raw[oldpos:newpos])

        # skip indenting tokens
        if toktype in [token.INDENT, token.DEDENT]:
            self.pos = newpos
            return

        # map token type to a color group
        if token.LPAR <= toktype and toktype <= token.OP:
            toktype = token.OP
        elif toktype == token.NAME and keyword.iskeyword(toktext):
            toktype = _KEYWORD
        color = _colors.get(toktype, _colors[_TEXT])

        style = ''
        if toktype == token.ERRORTOKEN:
            style = ' style="border: solid 1.5pt #FF0000;"'

        # send text
        self.out.write('<font color="%s"%s>' % (color, style))
        if self.froms and toktype == token.NAME and toktext != 'from':
            self.out.write( '<a href="%(baseurl)s%(toktext)s%(ext)s">%(toktext)s</a>' % vars() )
            self.froms = False
        elif self.imports and toktype == token.NAME and toktext != 'import':
            self.out.write( '<a href="%(baseurl)s%(module)s%(toktext)s%(ext)s">%(toktext)s</a>' % vars() )
        else:
            self.out.write(cgi.escape(toktext))
        self.out.write('</font>')


localfiles = os.popen("ls *.py").read()
if __name__ == "__main__":
    import os, sys
    print "Formatting..."
    print localfiles

    # open own source
    fnames = sys.argv[1:]
    for fname in [ os.path.splitext( fn )[0] for fn in fnames ]:
        source = open( fname + ".py" ).read()
        # write colorized version to "<fname>.html"
        Parser(source, open('%(fname)s.html' % vars(), 'wt')).format(None, None)


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