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#! /usr/bin/python
""" Converts an xml-file with docbook elements into troff manual pages.
The conversion uses etree expecting <refentry> elements in the input.
The output goes to a multiple files in manX/* subdirectories.
"""
__author__ = "Guido U. Draheim"
import logging
import os.path
import re
import xml.etree.ElementTree as ET
logg = logging.getLogger("dbk2man")
def parse_docbook(filename):
tree = ET.parse(filename)
return tree.getroot()
def dbk2man(filename, subdirectory = "."):
root = parse_docbook(filename)
return docbook2man(root, subdirectory)
def docbook2man(root, subdirectory = "."):
if root.tag != "reference":
logg.warning("no <reference> found, not a docbook file?")
logg.warning("found <%s> instead", root.tag)
title = ""
for refentry in root:
if refentry.tag == 'title':
title = refentry.text
continue
if refentry.tag != 'refentry':
logg.warning("no <refentry> list found, not a docbook file?")
logg.warning("found <%s> instead", refentry.tag)
continue
refentry2man(refentry, subdirectory, title)
def esc(text):
text = text.replace(".", "\\&.")
text = text.replace("-", "\\-")
return text
def unescape(text):
text = text.replace('<', '<')
text = text.replace('>', '>')
text = text.replace('"', '"')
text = text.replace('&', '&')
return text
def refentryinfo2(refentry, title):
date, productname, manvolnum, refentrytitle = "", "", "", ""
section = refentry.find("refentryinfo")
if section is not None:
found = section.find("date")
if found is not None: date = found.text
found = section.find("productname")
if found is not None: productname = found.text
section = refentry.find("refmeta")
if section is not None:
found = section.find("refentrytitle")
if found is not None: refentrytitle = found.text
found = section.find("manvolnum")
if found is not None: manvolnum = found.text
header = []
if refentrytitle:
header += [ refentrytitle ]
if manvolnum:
header += [ manvolnum ]
if date:
header += [ date ]
if productname:
header += [ productname ]
if title:
header += [ title ]
if header:
text = '.TH ' + " ".join([ '"%s"' % esc(part) for part in header])
return text + "\n"
logg.warning("no <refmeta> found")
return ""
def refentrytitle2(refentry, title = ""):
refentrytitle = ""
section = refentry.find("refmeta")
if section is not None:
found = section.find("refentrytitle")
if found is not None: refentrytitle = found.text
refentries = [ refentrytitle ]
refpurpose = ""
section = refentry.find("refnamediv")
if section is not None:
found = section.find("refpurpose")
if found is not None: refpurpose = found.text
for found in section.findall("refname"):
refname = found.text
if refname not in refentries:
refentries.append(refname)
if refentrytitle:
text = '.SH "NAME"' + "\n"
text += "" + esc(", ".join(refentries))
text += " " + esc("-")
text += " " + esc(refpurpose)
return text + "\n"
logg.warning("no <refentrytitle> found")
return ""
def refsynopsisdiv2(refentry, title = ""):
section = refentry.find("refsynopsisdiv")
if section is not None:
text = '.SH "SYNOPSIS"' + "\n"
text += ".sp\n"
text += ".nf\n"
for funcsynopsis in section.findall("funcsynopsis"):
funcsynopsisinfo = ""
found = funcsynopsis.find("funcsynopsisinfo")
if found is not None: funcsynopsisinfo = found.text
if funcsynopsisinfo:
for info in funcsynopsisinfo.split("\n"):
text += '.B "%s"' % esc(info)
text += "\n"
text += ".sp" + "\n"
else:
logg.debug("no <funcsynopsisinfo> found")
logg.debug("\n%s", ET.tostring(funcsynopsis))
funcs = 0
for funcprototype in funcsynopsis.findall("funcprototype"):
item = ET.tostring(funcprototype)
item = item.replace("<funcprototype>","")
item = item.replace("</funcprototype>","")
if False:
item = item.replace("\n", " ")
item = item.replace("<funcdef>","")
item = item.replace("</funcdef>","")
item = item.replace("<paramdef>",'<def>')
item = item.replace("</paramdef>",'<def>')
items = item.split("<def>")
text += '.BI %s' % " ".join(['"%s"' % part for part in items if part])
else:
item = item.replace("<funcdef>","")
item = re.sub(r"([_\w]+)</funcdef>", lambda x: "\\fI%s\\fR" % x.group(1), item)
item = item.replace("<paramdef>",'')
item = item.replace("</paramdef>",'')
text += item
text += "\n"
funcs += 1
if not funcs:
logg.warning("no <funcprototype> found")
logg.warning("\n%s", ET.tostring(funcsynopsis))
text += ".fi" + "\n"
text += ".sp" + "\n"
return text
logg.warning("no <resynopsidiv> found")
return ""
def refsections2(refentry, title = ""):
text = ""
for refsect in refentry.findall("refsect1"):
head = refsect.find("title")
if head is not None:
text += '.SH "%s"' % (esc(head.text.upper()))
text += "\n"
for para in list(refsect):
if para.tag == 'title':
continue
if para.tag == 'para':
text += cleanpara(para) + "\n"
text += ".sp\n"
continue
if para.tag == 'itemizedlist':
for item in list(para):
text += cleanpara(item) + "\n"
text += ".sp\n"
continue
logg.warning("unknown para <%s>", para.tag)
text += ".sp\n"
return text
def cleanpara(para):
item = unescape(ET.tostring(para))
item = item.replace("\n", " ")
item = item.replace(" ", " ")
item = item.replace(" ", " ")
item = item.replace(" ", " ")
item = item.replace(" ", " ")
item = item.replace("<listitem>", "")
item = item.replace("</listitem>", "")
item = item.replace("<para>", "")
item = item.replace("</para>", "")
item = item.replace("<function>", "\\fI")
item = item.replace("</function>", "\\fP")
item = item.replace("<literal>", "\\fI")
item = item.replace("</literal>", "\\fP")
return item
def styleinfo():
styles = []
styles += [ ".ie \\n(.g .ds Aq \\(aq" ]
styles += [ ".el .ds Aq " ] # http://bugs.debian.org/507673
styles += [ ".nh" ] # disable hyphenation
styles += [ ".ad l" ] # align left, no justification
return "".join([ "%s\n" % part for part in styles ])
def refentry2man(refentry, subdirectory = ".", title = ""):
if refentry.tag != "refentry":
logg.warning("no <refentry> found, not a docbook file?")
logg.warning("found <%s> instead", refentry.tag)
text = ""
text += refentryinfo2(refentry, title)
text += styleinfo()
text += refentrytitle2(refentry, title)
text += refsynopsisdiv2(refentry)
text += refsections2(refentry)
### write the files
refentrytitle = ""
manvolnum = "3"
section = refentry.find("refmeta")
if section is not None:
found = section.find("refentrytitle")
if found is not None: refentrytitle = found.text
found = section.find("manvolnum")
if found is not None: manvolnum = found.text
written = 0
section = refentry.find("refnamediv")
for refname in section.findall("refname"):
if not refentrytitle:
refentrytitle = refname.text
manpage = refname.text
filename = "%s/man%s/%s.%s" % (subdirectory, manvolnum, manpage, manvolnum)
if manpage != refentrytitle:
manpagetext = ".so %s.%s\n" % (refentrytitle, manvolnum)
writefile(filename, manpagetext)
else:
manpagetext = text
writefile(filename, manpagetext)
written += 1
if not written:
manpage = refentrytitle
filename = "%s/man%s/%s.%s" % (subdirectory, manvolnum, manpage, manvolnum)
writefile(filename, manpagetext)
def writefile(filename, manpagetext):
dirname = os.path.dirname(filename)
if not os.path.isdir(dirname):
logg.debug("mkdir %s", dirname)
os.makedirs(dirname)
with open(filename, "w") as f:
f.write(manpagetext)
logg.debug("written %s [%s]", filename, manpagetext.split("\n", 1)[0])
if __name__ == "__main__":
from optparse import OptionParser
_o = OptionParser("%prog [options] docbookfiles...")
_o.add_option("-d","--into", metavar="DIR", default=".",
help="specify base directory for output [%default]")
_o.add_option("-v","--verbose", action="count", default=0,
help="increase logging level [%default]")
opt, args = _o.parse_args()
logging.basicConfig(level = max(0, logging.WARNING - 10 * opt.verbose))
for arg in args:
dbk2man(arg, opt.into)
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