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import os
import re
import xml.etree.ElementTree as ET
from .txtparser import texinputs_parse
class BaseOption:
def __init__(self, config, optname):
self.config = config
self.optname = optname
self._value = None
def optvalue(self):
return self._value
def get(self, what, default=None):
return None
def options(self):
value = self.optvalue()
if self.optname and value:
return ["%s=%s" % (self.optname, value)]
else:
return []
def fromnode(self, xmlnode):
self._value = xmlnode.text
def modules(self):
return {}
class CommandConfig:
def __init__(self, config, type="command"):
self.config = config
self.type = type
self.args = []
self.stdin = None
self.stdout = None
self.shell = False
def options(self):
return self.args
def modules(self):
return {}
def fromnode(self, xmlnode):
self.stdin = xmlnode.get("input")
self.stdout = xmlnode.get("output")
self.shell = xmlnode.get("shell")
args = (xmlnode.text or "").split()
for arg in xmlnode:
if arg.text: args.append(arg.text)
args.extend((arg.tail or "").split())
self.args = args
class TexStyle(BaseOption):
def __init__(self, config, optname):
BaseOption.__init__(self, config, optname)
self.filepath = ""
def optvalue(self):
return self.filepath
def fromnode(self, xmlnode):
self.filepath = xmlnode.get("fileref") or xmlnode.get("use")
class TexPath(BaseOption):
def __init__(self, config, optname):
BaseOption.__init__(self, config, optname)
self.paths = []
def optvalue(self):
return os.pathsep.join(self.paths)
def fromnode(self, xmlnode):
if not(xmlnode.text): return
self.paths = texinputs_parse(xmlnode.text, self.config.basedir)
class FilePath(BaseOption):
def __init__(self, config, optname):
BaseOption.__init__(self, config, optname)
self.filepath = ""
def optvalue(self):
return self.filepath
def fromnode(self, xmlnode):
filepath = xmlnode.get("fileref")
if not(filepath):
return
if not(os.path.isabs(filepath)):
filepath = os.path.normpath(os.path.join(self.config.basedir,
filepath))
self.filepath = filepath
class ModuleConfig(BaseOption):
def __init__(self, config, optname):
BaseOption.__init__(self, config, optname)
self.commands = []
self.extra_args = None
self.module_name = ""
self.module_file = ""
def optvalue(self):
return self.module_name or self.module_file
def modules(self):
if self.module_name:
return {self.module_name: self}
else:
return {}
def fromnode(self, xmlnode):
ns = { "x": self.config.xmlns }
self._handle_location(xmlnode)
xmlopts = xmlnode.find("x:options", ns)
xmlcmds = xmlnode.find("x:command", ns)
xmlchain = xmlnode.find("x:commandchain", ns)
if not(xmlchain is None):
xmlcmds = xmlchain.findall("x:command", ns)
for cmd in xmlcmds:
args = CommandConfig(self.config)
args.fromnode(cmd)
self.commands.append(args)
elif not(xmlcmds is None):
args = CommandConfig(self.config)
args.fromnode(xmlcmds)
self.commands.append(args)
elif not(xmlopts is None):
# FIXME
self.extra_args = CommandConfig(self.config, type="option")
self.extra_args.fromnode(xmlopts)
def _handle_location(self, xmlnode):
self.module_name = xmlnode.get("use")
self.module_file = xmlnode.get("fileref")
if not(self.module_name) and self.module_file:
p = FilePath(self.config, "")
p.fromnode(xmlnode)
self.module_file = p.filepath
class ImageConverterConfig(ModuleConfig):
def __init__(self, config, optname):
ModuleConfig.__init__(self, config, optname)
def __repr__(self):
return self.module_name
def fromnode(self, xmlnode):
self.imgsrc = xmlnode.get("src")
self.imgdst = xmlnode.get("dst")
self.docformat = xmlnode.get("docformat") or "*"
self.backend = xmlnode.get("backend") or "*"
ModuleConfig.fromnode(self, xmlnode)
name = "%s/%s/%s/%s" % (self.imgsrc, self.imgdst,
self.docformat, self.backend)
self.module_name = name
class ImageFormatConfig(BaseOption):
def __init__(self, config, optname):
BaseOption.__init__(self, config, optname)
self.imgsrc = ""
self.imgdst = ""
self.docformat = ""
self.backend = ""
def fromnode(self, xmlnode):
self.imgsrc = xmlnode.get("src")
self.imgdst = xmlnode.get("dst")
self.docformat = xmlnode.get("docformat") or "*"
self.backend = xmlnode.get("backend") or "*"
class XsltEngineConfig(ModuleConfig):
def __init__(self, config, optname):
ModuleConfig.__init__(self, config, optname)
def __repr__(self):
return self.module_name
def fromnode(self, xmlnode):
self.param_format = xmlnode.get("param-format")
ModuleConfig.fromnode(self, xmlnode)
if not(self.module_name or self.module_file):
self.module_name = "xsltconf"
class XmlConfigGroup:
node_parsers = {}
def __init__(self, config):
self.config = config
self.tagname = ""
self.infos = {}
def get(self, tag, default=""):
if default == "": default = BaseOption(self, "")
return self.infos.get(tag, default)
def _register(self, xmlnode, info):
tag = self.strip_ns(xmlnode.tag)
taglist = self.infos.get(tag, [])
taglist.append(info)
self.infos[tag] = taglist
def strip_ns(self, tag):
return self.config.strip_ns(tag)
def options(self):
opts = []
for parsers in self.infos.values():
for parser in parsers:
opts.extend(parser.options())
return opts
def modules(self):
mods = {}
for parsers in self.infos.values():
for parser in parsers:
mods.update(parser.modules())
return mods
def fromnode(self, xmlnode):
self.tagname = xmlnode.tag
for child in xmlnode:
found = self.node_parsers.get(self.strip_ns(child.tag))
if found:
optname, parser_cls = found
parser = parser_cls(self.config, optname)
parser.fromnode(child)
self._register(child, parser)
class LatexConfig(XmlConfigGroup):
node_parsers = {
"texinputs": ("--texinputs", TexPath),
"bibinputs": ("--bib-path", TexPath),
"bstinputs": ("--bst-path", TexPath),
"texstyle": ("--texstyle", TexStyle),
"indexstyle": ("--indexstyle", FilePath),
"backend": ("--backend", ModuleConfig),
"texpost": ("--texpost", ModuleConfig)
}
class XsltConfig(XmlConfigGroup):
node_parsers = {
"stylesheet": ("--xsl-user", FilePath),
"engine": ("--xslt", XsltEngineConfig)
}
class ImageConfig(XmlConfigGroup):
node_parsers = {
"figpath": ("--fig-path", FilePath),
"figformat": ("--fig-format", BaseOption),
"converter": ("", ImageConverterConfig),
"formatrule": ("", ImageFormatConfig)
}
class XmlConfig:
"""
Parses an XML configuration file and stores its data in
configuration objects.
"""
node_parsers = {
"latex": LatexConfig,
"xslt": XsltConfig,
"imagedata": ImageConfig,
"options": CommandConfig
}
xmlns = "http://dblatex.sourceforge.net/config"
root_tag = "config"
def __init__(self):
self.basedir = ""
self.infos = {}
def _register(self, xmlnode, info):
self.infos[self.strip_ns(xmlnode.tag)] = info
def get(self, tag, default=""):
if default == "": default = BaseOption(self, "")
return self.infos.get(tag, default)
def options(self):
opts = []
for parser in self.infos.values():
opts.extend(parser.options())
return opts
def modules(self):
mods = {}
for parser in self.infos.values():
mods.update(parser.modules())
return mods
def strip_ns(self, tag):
return tag.replace("{%s}" % self.xmlns, "", 1)
def fromfile(self, filename):
self.basedir = os.path.dirname(os.path.realpath(filename))
document = ET.parse(filename)
root = document.getroot()
self._check_root(root.tag)
for child in root:
parser_cls = self.node_parsers.get(self.strip_ns(child.tag))
if parser_cls:
parser = parser_cls(self)
parser.fromnode(child)
self._register(child, parser)
def _check_root(self, root):
xmlns, tag = self._split_xmlns(root)
if tag != self.root_tag:
raise ValueError("Expect the XML config root element being '%s'" % \
self.root_tag)
if xmlns and xmlns != self.xmlns:
raise ValueError("Invalid XML config xmlns: '%s'" % xmlns)
def _split_xmlns(self, tag):
m = re.match("{([^}]+)}(.*)", tag)
if m:
return m.group(1), m.group(2)
else:
return "", tag
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