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#
# Basic class handling osx() call. It tries to replace the entities by
# the equivalent unicode characters.
#
import os
import sys
import re
import logging
from subprocess import call
from io import open
class Osx:
def __init__(self):
self.opts = ["-xlower",
"-xno-nl-in-tag",
"-xempty",
"-xno-expand-internal",
"-xid"] # To have id() working without a DTD
self.log = logging.getLogger("dblatex")
def replace_entities(self, entfile, mapfile, outfile=None):
# Find out the SDATA entities to replace
re_ent = re.compile(r'<!ENTITY +([^\s]+) +"?\[([^\s"]+) *\]"?>')
f = open(entfile, "rt", encoding="latin-1")
lines = f.readlines()
f.close()
# Trivial case where no entities to map
if not(lines):
return
ents = []
for line in lines:
ents += re_ent.findall(line)
self.log.debug("Entities to map: %s" % ents)
# Now, get their Unicode mapping
entpat = r"^(%s)\s+[^\s]+\s+0(x[^\s]+)" % "|".join([x for x, y in ents])
re_map = re.compile(entpat)
entmap = []
f = open(mapfile, "rt", encoding="latin-1")
for line in f:
entmap += re_map.findall(line.split("#")[0])
f.close()
self.log.debug("Entity map: %s" % entmap)
# Replace the entity definitions by their Unicode equivalent
entdict = {}
for ent, uval in entmap:
entdict[ent] = \
(re.compile(r'<!ENTITY\s+%s\s+"?\[[^\]]+\]"?\s*>' % ent),
'<!ENTITY %s "&#%s;">' % (ent, uval))
nlines = []
for line in lines:
mapped = []
for ent in entdict:
reg, rep = entdict[ent]
line, n = reg.subn(rep, line)
if n:
mapped.append(ent)
nlines.append(line)
for ent in mapped:
del entdict[ent]
if not(outfile): outfile = entfile
f = open(outfile, "wt", encoding="latin-1")
f.writelines(nlines)
f.close()
def run(self, sgmlfile, xmlfile):
errfile = "errors.osx"
f = open(xmlfile, "wb")
rc = call(["osx"] + self.opts + ["-f", errfile, sgmlfile], stdout=f)
f.close()
if rc != 0:
i = 0
f = open(errfile, "rt")
for line in f:
sys.stderr.write(line)
i += 1
if i == 10: break
f.close()
raise OSError("osx failed")
# Now, replace the SDATA entities
sgmlmap = os.path.join(os.path.dirname(__file__), "sgmlent.txt")
self.replace_entities("intEntities.dtf", sgmlmap)
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