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#
# DbTex configuration parser. Maybe we could use or extend ConfigParser.
#
import os
import re
from io import open
#
# Functions used by the config parsers and by the dbtex command parser
#
def texinputs_parse(strpath, basedir=None):
"""
Transform the TEXINPUTS string to absolute normalized paths,
but keep intact the '//' suffix if any. The absolute paths are
computed from current one or from <basedir> when specified.
"""
paths = []
for p in strpath.split(os.pathsep):
if not(os.path.isabs(p)):
if not(basedir):
d = os.path.realpath(p)
else:
d = os.path.normpath(os.path.join(basedir, p))
else:
d = os.path.normpath(p)
if p.endswith("//"):
d += "//"
paths.append(d)
return paths
def texstyle_parse(texstyle):
sty = os.path.basename(texstyle)
dir = os.path.dirname(texstyle)
if sty.endswith(".sty"):
path = os.path.realpath(dir)
sty = sty[:-4]
if not(os.path.isfile(texstyle)):
raise ValueError("Latex style '%s' not found" % texstyle)
elif (dir):
raise ValueError("Invalid latex style path: missing .sty")
else:
path = ""
return ("latex.style=%s" % sty, path)
class OptMap:
def __init__(self, option):
self.option = option
def format(self, dir, value):
return ["%s=%s" % (self.option, value)]
class PathMap(OptMap):
def format(self, dir, value):
if not(os.path.isabs(value)):
value = os.path.normpath(os.path.join(dir, value))
return OptMap.format(self, dir, value)
class TexMap(OptMap):
def format(self, dir, value):
paths = texinputs_parse(value, basedir=dir)
return OptMap.format(self, dir, ":".join(paths))
class NoneMap(OptMap):
def format(self, dir, value):
return value.split()
class TextConfig:
conf_mapping = {
'TexInputs' : TexMap('--texinputs'),
#'PdfInputs' : OptMap('--pdfinputs'),
'TexPost' : PathMap('--texpost'),
'FigPath' : PathMap('--fig-path'),
'XslParam' : PathMap('--xsl-user'),
'TexStyle' : OptMap('--texstyle'),
'Options' : NoneMap('')
}
def __init__(self):
self._options = []
self.reparam = re.compile(r"^\s*([^:=\s]+)\s*:\s*(.*)")
def options(self):
return self._options
def fromfile(self, file):
dir = os.path.dirname(os.path.realpath(file))
f = open(file, "rt")
for line in f:
# Remove the comment
line = line.split("#")[0]
m = self.reparam.match(line)
if not(m):
continue
key = m.group(1)
value = m.group(2).strip()
if key not in self.conf_mapping:
continue
o = self.conf_mapping[key]
# The paths can be relative to the config file
self._options += o.format(dir, value)
f.close()
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