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#!/usr/bin/env python
import sys
from xml import sax
class Variable(object):
def __init__(self):
self.term = None
self.listitem = None
def __str__(self):
return "%s %s" % (self.term, self.listitem)
class TextBlock(object):
def __init__(self, text = "", order = 0):
self.text = text
self.order = order
def __str__(self):
return self.text
class Para(TextBlock):
def __str__(self):
return "\n.PP\n" + self.text.lstrip()
class Code(TextBlock):
def __str__(self):
return "\n.nf\n%s\n.fi\n" % self.text.lstrip()
class DocBookToNroffHandler(sax.ContentHandler):
def __init__(self, out=sys.stdout):
###########################################################################################
self.out = out
self.stack = []
###########################################################################################
self.refentryinfo = {}
self.refmeta = {}
self.refnamediv = {}
self.synopsis = {}
self.refsection = {}
self.mypara = None
self.myvar = None
self.myprogramlisting = None
self.elementcount = 0
self.formatting = []
self.justformatted = False
def is_formatting(self, what):
return what in [ "command", "option", "parameter", "replaceable", "filename", "emphasis" ]
def translate_formatting(self, what):
if what in ["command", "option", "parameter", "filename"]:
return "B"
elif what in ["emphasis", "replaceable"]:
return "I"
return ""
def startElement(self, name, attrs):
###########################################################################################
#print >> self.out, "+" + name
name = name.lower()
self.stack.insert(0, name)
self.elementcount += 1
#print >> self.out, self.stack
###########################################################################################
# if name == "arg":
# attrs.get("choice")
if "refsection" == name:
self.refsection["id"] = attrs["id"]
if "para" == name:
self.mypara = Para(order=self.elementcount)
if "varlistentry" == name:
self.myvar = Variable()
if "programlisting" == name:
self.myprogramlisting = Code(order=self.elementcount)
if self.is_formatting(name):
self.formatting.append(self.translate_formatting(name))
def characters(self, content):
###########################################################################################
#print >> self.out, content
###########################################################################################
if "refentryinfo" in self.stack:
if "refentrytitle" in self.stack:
self.refentryinfo["refentrytitle"] = content
if "manvolnum" in self.stack:
self.refentryinfo["manvolnum"] = content
if "productname" in self.stack:
self.refentryinfo["productname"] = content
if "date" in self.stack:
self.refentryinfo["date"] = content
elif "refmeta" in self.stack:
if "refmeta" in self.stack:
self.refmeta["manvolnum"] = content
elif "refnamediv" in self.stack:
if "refname" in self.stack:
self.refentryinfo["refname"] = content
if "refpurpose" in self.stack:
self.refentryinfo["refpurpose"] = content
elif "cmdsynopsis" in self.stack:
if "command" in self.stack:
self.synopsis["command"] = content
elif "arg" in self.stack:
if not self.synopsis.has_key("args"):
self.synopsis["args"] = []
self.synopsis["args"].append(content)
elif "refsection" in self.stack:
if "title" in self.stack:
self.refsection["title"] = content
elif "varlistentry" in self.stack:
if "term" in self.stack:
self.myvar.term = content
elif "listitem" in self.stack:
self.myvar.listitem = content
elif "programlisting" in self.stack:
self.myprogramlisting.text += content
elif "para" in self.stack:
if self.formatting:
self.mypara.text += "\n.%s %s\n" % ("".join(self.formatting), content)
self.justformatted = True
else:
if self.justformatted:
self.mypara.text += content.lstrip()
else:
self.mypara.text += content
self.justformatted = False
def endElement(self, name):
###########################################################################################
#print >> self.out, "-" + name
name = name.lower()
del self.stack[0]
#print >> self.out, self.stack
###########################################################################################
if "refentryinfo" == name:
print >> self.out, ".TH %(refentrytitle)s %(manvolnum)s \"%(date)s\" \"USER COMMANDS\"" % self.refentryinfo
if "refnamediv" == name:
print >> self.out, ".SH NAME \n %(refname)s \- %(refpurpose)s" % self.refentryinfo
if "cmdsynopsis" == name:
self.synopsis["argcombo"] = " ".join(self.synopsis["args"])
print >> self.out, ".SH Synopsis \n.B %(command)s \n%(argcombo)s" % self.synopsis
if "refsection" == name:
print >> self.out, ".SH %(title)s \n" % self.refsection
if self.refsection.has_key("varlist"):
for v in self.refsection["varlist"]:
print >> self.out, ".TP \n.B %s\n%s" % (v.term,v.listitem)
if self.refsection.has_key("textblock"):
self.refsection["textblock"].sort(cmp = lambda a,b: a.order - b.order)
for p in self.refsection["textblock"]:
print >> self.out, str(p)
self.refsection = {}
if "varlistentry" == name:
if not self.refsection.has_key("varlist"):
self.refsection["varlist"] = []
self.refsection["varlist"].append(self.myvar)
self.myvar = None
if "programlisting" == name:
if not self.refsection.has_key("textblock"):
self.refsection["textblock"] = []
self.refsection["textblock"].append(self.myprogramlisting)
self.myprogramlisting = None
if "para" == name:
if not self.refsection.has_key("textblock"):
self.refsection["textblock"] = []
self.refsection["textblock"].append(self.mypara)
self.mypara = None
if self.is_formatting(name):
self.formatting.pop()
parser = sax.make_parser()
parser.setContentHandler(DocBookToNroffHandler())
parser.parse(open(sys.argv[1], "r"))
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