514 lines
16 KiB
Python
Executable File
514 lines
16 KiB
Python
Executable File
#!/usr/bin/env python
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"""Convert PEPs to (X)HTML - courtesy of /F
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Usage: %(PROGRAM)s [options] [peps]
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Options:
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-u/--user
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python.org username
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-b/--browse
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After generating the HTML, direct your web browser to view it
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(using the Python webbrowser module). If both -i and -b are
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given, this will browse the on-line HTML; otherwise it will
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browse the local HTML. If no pep arguments are given, this
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will browse PEP 0.
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-i/--install
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After generating the HTML, install it and the plaintext source file
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(.txt) on python.org. In that case the user's name is used in the scp
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and ssh commands, unless "-u username" is given (in which case, it is
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used instead). Without -i, -u is ignored.
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-q/--quiet
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Turn off verbose messages.
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-h/--help
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Print this help message and exit.
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The optional argument `peps' is a list of either pep numbers or .txt files.
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"""
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import sys
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import os
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import re
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import cgi
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import glob
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import getopt
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import errno
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import random
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import time
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REQUIRES = {'python': '2.2',
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'docutils': '0.2.7'}
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PROGRAM = sys.argv[0]
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RFCURL = 'http://www.faqs.org/rfcs/rfc%d.html'
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PEPURL = 'pep-%04d.html'
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PEPCVSURL = ('http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/python/python'
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'/nondist/peps/pep-%04d.txt')
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PEPDIRRUL = 'http://www.python.org/peps/'
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HOST = "www.python.org" # host for update
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HDIR = "/ftp/ftp.python.org/pub/www.python.org/peps" # target host directory
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LOCALVARS = "Local Variables:"
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COMMENT = """<!--
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This HTML is auto-generated. DO NOT EDIT THIS FILE! If you are writing a new
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PEP, see http://www.python.org/peps/pep-0001.html for instructions and links
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to templates. DO NOT USE THIS HTML FILE AS YOUR TEMPLATE!
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-->"""
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# The generated HTML doesn't validate -- you cannot use <hr> and <h3> inside
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# <pre> tags. But if I change that, the result doesn't look very nice...
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DTD = ('<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"\n'
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' "http://www.w3.org/TR/REC-html40/loose.dtd">')
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fixpat = re.compile("((http|ftp):[-_a-zA-Z0-9/.+~:?#$=&,]+)|(pep-\d+(.txt)?)|"
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"(RFC[- ]?(?P<rfcnum>\d+))|"
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"(PEP\s+(?P<pepnum>\d+))|"
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".")
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EMPTYSTRING = ''
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SPACE = ' '
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COMMASPACE = ', '
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def usage(code, msg=''):
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print >> sys.stderr, __doc__ % globals()
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if msg:
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print >> sys.stderr, msg
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sys.exit(code)
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def fixanchor(current, match):
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text = match.group(0)
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link = None
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if text.startswith('http:') or text.startswith('ftp:'):
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# Strip off trailing punctuation. Pattern taken from faqwiz.
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ltext = list(text)
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while ltext:
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c = ltext.pop()
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if c not in '();:,.?\'"<>':
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ltext.append(c)
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break
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link = EMPTYSTRING.join(ltext)
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elif text.startswith('pep-') and text <> current:
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link = os.path.splitext(text)[0] + ".html"
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elif text.startswith('PEP'):
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pepnum = int(match.group('pepnum'))
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link = PEPURL % pepnum
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elif text.startswith('RFC'):
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rfcnum = int(match.group('rfcnum'))
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link = RFCURL % rfcnum
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if link:
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return '<a href="%s">%s</a>' % (link, cgi.escape(text))
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return cgi.escape(match.group(0)) # really slow, but it works...
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NON_MASKED_EMAILS = [
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'peps@python.org',
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'python-list@python.org',
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'python-dev@python.org',
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]
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def fixemail(address, pepno):
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if address.lower() in NON_MASKED_EMAILS:
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# return hyperlinked version of email address
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return linkemail(address, pepno)
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else:
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# return masked version of email address
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parts = address.split('@', 1)
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return '%s at %s' % (parts[0], parts[1])
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def linkemail(address, pepno):
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parts = address.split('@', 1)
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return ('<a href="mailto:%s@%s?subject=PEP%%20%s">'
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'%s at %s</a>'
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% (parts[0], parts[1], pepno, parts[0], parts[1]))
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def fixfile(inpath, input_lines, outfile):
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from email.Utils import parseaddr
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basename = os.path.basename(inpath)
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infile = iter(input_lines)
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# convert plaintext pep to minimal XHTML markup
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print >> outfile, COMMENT
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print >> outfile, DTD
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print >> outfile, '<html>'
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print >> outfile, '<head>'
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# head
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header = []
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pep = ""
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title = ""
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for line in infile:
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if not line.strip():
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break
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if line[0].strip():
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if ":" not in line:
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break
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key, value = line.split(":", 1)
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value = value.strip()
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header.append((key, value))
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else:
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# continuation line
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key, value = header[-1]
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value = value + line
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header[-1] = key, value
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if key.lower() == "title":
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title = value
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elif key.lower() == "pep":
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pep = value
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if pep:
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title = "PEP " + pep + " -- " + title
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if title:
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print >> outfile, ' <title>%s</title>' % cgi.escape(title)
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r = random.choice(range(64))
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print >> outfile, (
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' <link rel="STYLESHEET" href="style.css" type="text/css">\n'
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'</head>\n'
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'<body bgcolor="white" marginwidth="0" marginheight="0">\n'
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'<table class="navigation" cellpadding="0" cellspacing="0"\n'
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' width="100%%" border="0">\n'
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'<tr><td class="navicon" width="150" height="35">\n'
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'<a href="../" title="Python Home Page">\n'
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'<img src="../pics/PyBanner%03d.gif" alt="[Python]"\n'
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' border="0" width="150" height="35" /></a></td>\n'
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'<td class="textlinks" align="left">\n'
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'[<b><a href="../">Python Home</a></b>]' % r)
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if basename <> 'pep-0000.txt':
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print >> outfile, '[<b><a href=".">PEP Index</a></b>]'
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if pep:
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try:
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print >> outfile, ('[<b><a href="pep-%04d.txt">PEP Source</a>'
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'</b>]' % int(pep))
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except ValueError, error:
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print >> sys.stderr, ('ValueError (invalid PEP number): %s'
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% error)
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print >> outfile, '</td></tr></table>'
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print >> outfile, '<div class="header">\n<table border="0">'
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for k, v in header:
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if k.lower() in ('author', 'discussions-to'):
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mailtos = []
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for part in re.split(',\s*', v):
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if '@' in part:
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realname, addr = parseaddr(part)
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if k.lower() == 'discussions-to':
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m = linkemail(addr, pep)
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else:
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m = fixemail(addr, pep)
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mailtos.append('%s <%s>' % (realname, m))
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elif part.startswith('http:'):
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mailtos.append(
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'<a href="%s">%s</a>' % (part, part))
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else:
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mailtos.append(part)
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v = COMMASPACE.join(mailtos)
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elif k.lower() in ('replaces', 'replaced-by', 'requires'):
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otherpeps = ''
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for otherpep in re.split(',?\s+', v):
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otherpep = int(otherpep)
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otherpeps += '<a href="pep-%04d.html">%i</a> ' % (otherpep,
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otherpep)
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v = otherpeps
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elif k.lower() in ('last-modified',):
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date = v or time.strftime('%d-%b-%Y',
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time.localtime(os.stat(inpath)[8]))
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try:
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url = PEPCVSURL % int(pep)
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v = '<a href="%s">%s</a> ' % (url, cgi.escape(date))
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except ValueError, error:
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v = date
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elif k.lower() in ('content-type',):
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url = PEPURL % 9
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pep_type = v or 'text/plain'
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v = '<a href="%s">%s</a> ' % (url, cgi.escape(pep_type))
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else:
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v = cgi.escape(v)
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print >> outfile, ' <tr><th>%s: </th><td>%s</td></tr>' \
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% (cgi.escape(k), v)
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print >> outfile, '</table>'
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print >> outfile, '</div>'
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print >> outfile, '<hr />'
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print >> outfile, '<div class="content">'
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need_pre = 1
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for line in infile:
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if line[0] == '\f':
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continue
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if line.strip() == LOCALVARS:
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break
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if line[0].strip():
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if not need_pre:
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print >> outfile, '</pre>'
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print >> outfile, '<h3>%s</h3>' % line.strip()
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need_pre = 1
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elif not line.strip() and need_pre:
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continue
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else:
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# PEP 0 has some special treatment
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if basename == 'pep-0000.txt':
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parts = line.split()
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if len(parts) > 1 and re.match(r'\s*\d{1,4}', parts[1]):
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# This is a PEP summary line, which we need to hyperlink
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url = PEPURL % int(parts[1])
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if need_pre:
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print >> outfile, '<pre>'
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need_pre = 0
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print >> outfile, re.sub(
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parts[1],
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'<a href="%s">%s</a>' % (url, parts[1]),
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line, 1),
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continue
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elif parts and '@' in parts[-1]:
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# This is a pep email address line, so filter it.
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url = fixemail(parts[-1], pep)
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if need_pre:
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print >> outfile, '<pre>'
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need_pre = 0
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print >> outfile, re.sub(
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parts[-1], url, line, 1),
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continue
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line = fixpat.sub(lambda x, c=inpath: fixanchor(c, x), line)
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if need_pre:
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print >> outfile, '<pre>'
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need_pre = 0
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outfile.write(line)
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if not need_pre:
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print >> outfile, '</pre>'
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print >> outfile, '</div>'
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print >> outfile, '</body>'
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print >> outfile, '</html>'
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docutils_settings = None
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"""Runtime settings object used by Docutils. Can be set by the client
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application when this module is imported."""
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def fix_rst_pep(inpath, input_lines, outfile):
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from docutils import core
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output = core.publish_string(
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source=''.join(input_lines),
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source_path=inpath,
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destination_path=outfile.name,
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reader_name='pep',
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parser_name='restructuredtext',
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writer_name='pep_html',
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settings=docutils_settings)
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outfile.write(output)
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def get_pep_type(input_lines):
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"""
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Return the Content-Type of the input. "text/plain" is the default.
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Return ``None`` if the input is not a PEP.
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"""
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pep_type = None
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for line in input_lines:
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line = line.rstrip().lower()
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if not line:
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# End of the RFC 2822 header (first blank line).
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break
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elif line.startswith('content-type: '):
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pep_type = line.split()[1] or 'text/plain'
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break
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elif line.startswith('pep: '):
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# Default PEP type, used if no explicit content-type specified:
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pep_type = 'text/plain'
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return pep_type
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def get_input_lines(inpath):
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try:
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infile = open(inpath)
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except IOError, e:
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if e.errno <> errno.ENOENT: raise
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print >> sys.stderr, 'Error: Skipping missing PEP file:', e.filename
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sys.stderr.flush()
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return None, None
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lines = infile.read().splitlines(1) # handles x-platform line endings
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infile.close()
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return lines
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def find_pep(pep_str):
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"""Find the .txt file indicated by a cmd line argument"""
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if os.path.exists(pep_str):
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return pep_str
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num = int(pep_str)
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return "pep-%04d.txt" % num
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def make_html(inpath, verbose=0):
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input_lines = get_input_lines(inpath)
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pep_type = get_pep_type(input_lines)
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if pep_type is None:
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print >> sys.stderr, 'Error: Input file %s is not a PEP.' % inpath
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sys.stdout.flush()
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return None
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elif not PEP_TYPE_DISPATCH.has_key(pep_type):
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print >> sys.stderr, ('Error: Unknown PEP type for input file %s: %s'
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% (inpath, pep_type))
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sys.stdout.flush()
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return None
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elif PEP_TYPE_DISPATCH[pep_type] == None:
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pep_type_error(inpath, pep_type)
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return None
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outpath = os.path.splitext(inpath)[0] + ".html"
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if verbose:
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print inpath, "(%s)" % pep_type, "->", outpath
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sys.stdout.flush()
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outfile = open(outpath, "w")
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PEP_TYPE_DISPATCH[pep_type](inpath, input_lines, outfile)
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outfile.close()
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os.chmod(outfile.name, 0664)
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return outpath
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def push_pep(htmlfiles, txtfiles, username, verbose):
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if verbose:
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quiet = ""
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else:
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quiet = "-q"
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if username:
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username = username + "@"
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target = username + HOST + ":" + HDIR
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files = htmlfiles[:]
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files.extend(txtfiles)
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files.append("style.css")
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files.append("pep.css")
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filelist = SPACE.join(files)
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rc = os.system("scp %s %s %s" % (quiet, filelist, target))
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if rc:
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sys.exit(rc)
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rc = os.system("ssh %s%s chmod 664 %s/*" % (username, HOST, HDIR))
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if rc:
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sys.exit(rc)
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PEP_TYPE_DISPATCH = {'text/plain': fixfile,
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'text/x-rst': fix_rst_pep}
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PEP_TYPE_MESSAGES = {}
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def check_requirements():
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# Check Python:
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try:
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from email.Utils import parseaddr
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except ImportError:
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PEP_TYPE_DISPATCH['text/plain'] = None
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PEP_TYPE_MESSAGES['text/plain'] = (
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'Python %s or better required for "%%(pep_type)s" PEP '
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'processing; %s present (%%(inpath)s).'
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% (REQUIRES['python'], sys.version.split()[0]))
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# Check Docutils:
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try:
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import docutils
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except ImportError:
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PEP_TYPE_DISPATCH['text/x-rst'] = None
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PEP_TYPE_MESSAGES['text/x-rst'] = (
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'Docutils not present for "%(pep_type)s" PEP file %(inpath)s. '
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'See README.txt for installation.')
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else:
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if docutils.__version__ < REQUIRES['docutils']:
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PEP_TYPE_DISPATCH['text/x-rst'] = None
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PEP_TYPE_MESSAGES['text/x-rst'] = (
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'Docutils must be reinstalled for "%%(pep_type)s" PEP '
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'processing (%%(inpath)s). Version %s or better required; '
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'%s present. See README.txt for installation.'
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% (REQUIRES['docutils'], docutils.__version__))
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def pep_type_error(inpath, pep_type):
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print >> sys.stderr, 'Error: ' + PEP_TYPE_MESSAGES[pep_type] % locals()
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sys.stdout.flush()
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def browse_file(pep):
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import webbrowser
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file = find_pep(pep)
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if file.endswith(".txt"):
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file = file[:-3] + "html"
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file = os.path.abspath(file)
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url = "file:" + file
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webbrowser.open(url)
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def browse_remote(pep):
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import webbrowser
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file = find_pep(pep)
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if file.endswith(".txt"):
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file = file[:-3] + "html"
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url = PEPDIRRUL + file
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webbrowser.open(url)
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def main(argv=None):
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# defaults
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update = 0
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username = ''
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verbose = 1
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browse = 0
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check_requirements()
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if argv is None:
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argv = sys.argv[1:]
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try:
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opts, args = getopt.getopt(
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argv, 'bihqu:',
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['browse', 'install', 'help', 'quiet', 'user='])
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except getopt.error, msg:
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usage(1, msg)
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for opt, arg in opts:
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if opt in ('-h', '--help'):
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usage(0)
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elif opt in ('-i', '--install'):
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update = 1
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elif opt in ('-u', '--user'):
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username = arg
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elif opt in ('-q', '--quiet'):
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verbose = 0
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elif opt in ('-b', '--browse'):
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browse = 1
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if args:
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peptxt = []
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html = []
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for pep in args:
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file = find_pep(pep)
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peptxt.append(file)
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newfile = make_html(file, verbose=verbose)
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if newfile:
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html.append(newfile)
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if browse and not update:
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browse_file(pep)
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else:
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# do them all
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peptxt = []
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html = []
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files = glob.glob("pep-*.txt")
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files.sort()
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for file in files:
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peptxt.append(file)
|
||
newfile = make_html(file, verbose=verbose)
|
||
if newfile:
|
||
html.append(newfile)
|
||
if browse and not update:
|
||
browse_file("0")
|
||
|
||
if update:
|
||
push_pep(html, peptxt, username, verbose)
|
||
if browse:
|
||
if args:
|
||
for pep in args:
|
||
browse_remote(pep)
|
||
else:
|
||
browse_remote("0")
|
||
|
||
|
||
|
||
if __name__ == "__main__":
|
||
main()
|