/usr/lib/python2.7/doc/tools/sgmlconv/esis2sgml.py is in python-old-doctools 2.5.5-2.1.
This file is owned by root:root, with mode 0o755.
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"""Convert ESIS events to SGML or XML markup.
This is limited, but seems sufficient for the ESIS generated by the
latex2esis.py script when run over the Python documentation.
"""
# This should have an explicit option to indicate whether the *INPUT* was
# generated from an SGML or an XML application.
import errno
import os
import re
import string
from xml.sax.saxutils import escape
import esistools
AUTOCLOSE = ()
EMPTIES_FILENAME = "../sgml/empties.dat"
LIST_EMPTIES = 0
_elem_map = {}
_attr_map = {}
_token_map = {}
_normalize_case = str
def map_gi(sgmlgi, map):
uncased = _normalize_case(sgmlgi)
try:
return map[uncased]
except IndexError:
map[uncased] = sgmlgi
return sgmlgi
def null_map_gi(sgmlgi, map):
return sgmlgi
def format_attrs(attrs, xml=0):
attrs = attrs.items()
attrs.sort()
parts = []
append = parts.append
for name, value in attrs:
if xml:
append('%s="%s"' % (name, escape(value)))
else:
# this is a little bogus, but should do for now
if name == value and isnmtoken(value):
append(value)
elif istoken(value):
if value == "no" + name:
append(value)
else:
append("%s=%s" % (name, value))
else:
append('%s="%s"' % (name, escape(value)))
if parts:
parts.insert(0, '')
return " ".join(parts)
_nmtoken_rx = re.compile("[a-z][-._a-z0-9]*$", re.IGNORECASE)
def isnmtoken(s):
return _nmtoken_rx.match(s) is not None
_token_rx = re.compile("[a-z0-9][-._a-z0-9]*$", re.IGNORECASE)
def istoken(s):
return _token_rx.match(s) is not None
def convert(ifp, ofp, xml=0, autoclose=(), verbatims=()):
if xml:
autoclose = ()
attrs = {}
lastopened = None
knownempties = []
knownempty = 0
lastempty = 0
inverbatim = 0
while 1:
line = ifp.readline()
if not line:
break
type = line[0]
data = line[1:]
if data and data[-1] == "\n":
data = data[:-1]
if type == "-":
data = esistools.decode(data)
data = escape(data)
if not inverbatim:
data = data.replace("---", "—")
ofp.write(data)
if "\n" in data:
lastopened = None
knownempty = 0
lastempty = 0
elif type == "(":
if data == "COMMENT":
ofp.write("<!--")
continue
data = map_gi(data, _elem_map)
if knownempty and xml:
ofp.write("<%s%s/>" % (data, format_attrs(attrs, xml)))
else:
ofp.write("<%s%s>" % (data, format_attrs(attrs, xml)))
if knownempty and data not in knownempties:
# accumulate knowledge!
knownempties.append(data)
attrs = {}
lastopened = data
lastempty = knownempty
knownempty = 0
inverbatim = data in verbatims
elif type == ")":
if data == "COMMENT":
ofp.write("-->")
continue
data = map_gi(data, _elem_map)
if xml:
if not lastempty:
ofp.write("</%s>" % data)
elif data not in knownempties:
if data in autoclose:
pass
elif lastopened == data:
ofp.write("</>")
else:
ofp.write("</%s>" % data)
lastopened = None
lastempty = 0
inverbatim = 0
elif type == "A":
name, type, value = data.split(" ", 2)
name = map_gi(name, _attr_map)
attrs[name] = esistools.decode(value)
elif type == "e":
knownempty = 1
elif type == "&":
ofp.write("&%s;" % data)
knownempty = 0
else:
raise RuntimeError, "unrecognized ESIS event type: '%s'" % type
if LIST_EMPTIES:
dump_empty_element_names(knownempties)
def dump_empty_element_names(knownempties):
d = {}
for gi in knownempties:
d[gi] = gi
knownempties.append("")
if os.path.isfile(EMPTIES_FILENAME):
fp = open(EMPTIES_FILENAME)
while 1:
line = fp.readline()
if not line:
break
gi = line.strip()
if gi:
d[gi] = gi
fp = open(EMPTIES_FILENAME, "w")
gilist = d.keys()
gilist.sort()
fp.write("\n".join(gilist))
fp.write("\n")
fp.close()
def update_gi_map(map, names, fromsgml=1):
for name in names.split(","):
if fromsgml:
uncased = name.lower()
else:
uncased = name
map[uncased] = name
def main():
import getopt
import sys
#
autoclose = AUTOCLOSE
xml = 1
xmldecl = 0
elem_names = ''
attr_names = ''
value_names = ''
verbatims = ('verbatim', 'interactive-session')
opts, args = getopt.getopt(sys.argv[1:], "adesx",
["autoclose=", "declare", "sgml", "xml",
"elements-map=", "attributes-map",
"values-map="])
for opt, arg in opts:
if opt in ("-d", "--declare"):
xmldecl = 1
elif opt == "-e":
global LIST_EMPTIES
LIST_EMPTIES = 1
elif opt in ("-s", "--sgml"):
xml = 0
elif opt in ("-x", "--xml"):
xml = 1
elif opt in ("-a", "--autoclose"):
autoclose = arg.split(",")
elif opt == "--elements-map":
elem_names = ("%s,%s" % (elem_names, arg))[1:]
elif opt == "--attributes-map":
attr_names = ("%s,%s" % (attr_names, arg))[1:]
elif opt == "--values-map":
value_names = ("%s,%s" % (value_names, arg))[1:]
#
# open input streams:
#
if len(args) == 0:
ifp = sys.stdin
ofp = sys.stdout
elif len(args) == 1:
ifp = open(args[0])
ofp = sys.stdout
elif len(args) == 2:
ifp = open(args[0])
ofp = open(args[1], "w")
else:
usage()
sys.exit(2)
#
# setup the name maps:
#
if elem_names or attr_names or value_names:
# assume the origin was SGML; ignore case of the names from the ESIS
# stream but set up conversion tables to get the case right on output
global _normalize_case
_normalize_case = string.lower
update_gi_map(_elem_map, elem_names.split(","))
update_gi_map(_attr_map, attr_names.split(","))
update_gi_map(_values_map, value_names.split(","))
else:
global map_gi
map_gi = null_map_gi
#
# run the conversion:
#
try:
if xml and xmldecl:
opf.write('<?xml version="1.0" encoding="iso8859-1"?>\n')
convert(ifp, ofp, xml=xml, autoclose=autoclose, verbatims=verbatims)
except IOError, (err, msg):
if err != errno.EPIPE:
raise
if __name__ == "__main__":
main()
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