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#! /usr/bin/python
# HTML to manpage converter, written for ftplib.
# This program was written by Richard Braakman <dark@xs4all.nl>
# The author places it in the public domain.
import time
import sys
import string
import os
import stat
from sgmllib import SGMLParser
class PageParser(SGMLParser):
def __init__(self, receiver):
SGMLParser.__init__(self, 0)
self.receiver = receiver
self.data = None
# Data-handling mechanism borrowed from HTMLParser
def handle_data(self, data):
if self.data is not None:
self.data = self.data + data
else:
self.receiver.add_text(data)
def save_bgn(self):
self.data = ''
def save_end(self):
data = self.data
self.data = None
return string.join(string.split(data))
def start_html(self, attrs):
pass
def end_html(self):
self.receiver.finish()
def start_title(self, attrs):
self.save_bgn()
def end_title(self):
# This used to set the title, but it will be the same as
# the title in the <h1> block anyway, which is more convenient.
self.save_end()
def start_h1(self, attrs):
self.save_bgn()
def end_h1(self):
self.receiver.set_title(self.save_end())
self.receiver.write_intro()
def start_h2(self, attrs):
self.save_bgn()
def end_h2(self):
self.receiver.make_header(self.save_end())
def do_p(self, attrs):
self.receiver.start_paragraph()
def do_dt(self, attrs):
self.save_bgn()
def do_dd(self, attrs):
self.receiver.start_tab(self.save_end())
def start_pre(self, attrs):
self.save_bgn()
def end_pre(self):
self.receiver.preformatted(self.save_end())
class PageWriter:
def __init__(self, outfile):
self.out = outfile
self.title = None
self.mtime = None
self.need_newline = 0
self.suppress_paragraph = 0
def writeout(self, data):
self.out.write(data)
def set_time(self, time):
self.mtime = time
def prettydate(self):
return time.strftime('"%d %B %Y"', time.localtime(self.mtime))
def opt_newline(self):
if self.need_newline:
self.writeout("\n")
self.need_newline = 0
def add_text(self, data):
if len(data) == 0:
return
if data[-1] == " ":
data = string.join(string.split(data)) + " "
else:
data = string.join(string.split(data))
if len(data) == 0:
return
self.writeout(data)
self.need_newline = 1
def set_title(self, title):
self.title = title
def write_intro(self):
self.writeout(".\\\" This manual page was generated from the file " +
self.title + ".html.\n")
self.writeout(".TH " + self.title + " 3 " + self.prettydate() +
" FTPlib\n")
self.writeout(".SH NAME\n" + self.title + " \- ");
self.suppress_paragraph = 1
self.need_newline = 1
def preformatted(self, text):
self.opt_newline
# Parse include directives
rb = string.find(text, ">")
while rb >= 0:
self.writeout('.B "' + text[:rb+1] + '"\n.br\n')
text = text[rb+2:]
rb = string.find(text, ">")
self.writeout('.sp\n')
# Next comes a function prototype.
parmstart = string.index(text, "(")
if text[parmstart:] == "(void);":
self.writeout('.B "' + text + '"\n')
return
parms = string.split(text[parmstart+1:-2], ", ")
self.writeout('.BI "' + text[:parmstart+1])
length = parmstart+1
for i in range(len(parms)):
parm = parms[i]
if length + len(parm) > 55:
self.writeout('"\n.RS\n.BI "')
length = 8
else:
length = length + len(parm) + 2
end = string.rindex(parm, " ")
while parm[end+1] == "*":
end = end + 1
self.writeout(parm[:end+1] + '" ' + parm[end+1:] + ' "')
if i + 1 < len(parms):
self.writeout(', ')
self.writeout(text[-2:] + '"\n')
def make_header(self, header):
self.opt_newline()
self.writeout('.SH "' + header + '"\n');
def start_paragraph(self):
if self.suppress_paragraph:
self.suppress_paragraph = 0
else:
self.opt_newline()
self.writeout(".LP\n")
def start_tab(self, heading):
self.opt_newline()
self.writeout('.TP\n.B "' + heading + '"\n')
def finish(self):
self.opt_newline()
def convert(filename):
begin = string.rfind(filename, "/")
if begin >= 0:
filename = filename[begin+1:]
end = string.rindex(filename, ".html")
return filename[:end] + ".3"
if len(sys.argv) < 3:
sys.stderr.write("Usage: html2man filenames... dirname\n")
else:
dirname = sys.argv[-1]
for filename in sys.argv[1:-1]:
outfilename = os.path.join(dirname, convert(filename))
infile = open(filename, "r")
outfile = open(outfilename, "w")
timestamp = os.fstat(infile.fileno())[stat.ST_MTIME]
receiver = PageWriter(outfile)
receiver.set_time(timestamp)
parser = PageParser(receiver)
parser.feed(infile.read())
infile.close()
outfile.close()
os.utime(outfilename, (timestamp, timestamp))
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