mirror of
https://github.com/hb9fxq/gr-digitalhf
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221 lines
6.7 KiB
Python
221 lines
6.7 KiB
Python
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#
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# Copyright 2010 Free Software Foundation, Inc.
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#
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# This file was generated by gr_modtool, a tool from the GNU Radio framework
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# This file is a part of gr-digitalhf
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#
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# GNU Radio is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3, or (at your option)
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# any later version.
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#
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# GNU Radio is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with GNU Radio; see the file COPYING. If not, write to
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# the Free Software Foundation, Inc., 51 Franklin Street,
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# Boston, MA 02110-1301, USA.
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#
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"""
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A base class is created.
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Classes based upon this are used to make more user-friendly interfaces
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to the doxygen xml docs than the generated classes provide.
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"""
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import os
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import pdb
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from xml.parsers.expat import ExpatError
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from generated import compound
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class Base(object):
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class Duplicate(StandardError):
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pass
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class NoSuchMember(StandardError):
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pass
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class ParsingError(StandardError):
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pass
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def __init__(self, parse_data, top=None):
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self._parsed = False
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self._error = False
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self._parse_data = parse_data
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self._members = []
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self._dict_members = {}
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self._in_category = {}
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self._data = {}
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if top is not None:
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self._xml_path = top._xml_path
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# Set up holder of references
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else:
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top = self
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self._refs = {}
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self._xml_path = parse_data
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self.top = top
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@classmethod
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def from_refid(cls, refid, top=None):
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""" Instantiate class from a refid rather than parsing object. """
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# First check to see if its already been instantiated.
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if top is not None and refid in top._refs:
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return top._refs[refid]
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# Otherwise create a new instance and set refid.
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inst = cls(None, top=top)
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inst.refid = refid
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inst.add_ref(inst)
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return inst
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@classmethod
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def from_parse_data(cls, parse_data, top=None):
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refid = getattr(parse_data, 'refid', None)
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if refid is not None and top is not None and refid in top._refs:
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return top._refs[refid]
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inst = cls(parse_data, top=top)
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if refid is not None:
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inst.refid = refid
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inst.add_ref(inst)
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return inst
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def add_ref(self, obj):
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if hasattr(obj, 'refid'):
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self.top._refs[obj.refid] = obj
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mem_classes = []
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def get_cls(self, mem):
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for cls in self.mem_classes:
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if cls.can_parse(mem):
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return cls
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raise StandardError(("Did not find a class for object '%s'." \
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% (mem.get_name())))
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def convert_mem(self, mem):
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try:
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cls = self.get_cls(mem)
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converted = cls.from_parse_data(mem, self.top)
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if converted is None:
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raise StandardError('No class matched this object.')
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self.add_ref(converted)
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return converted
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except StandardError, e:
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print e
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@classmethod
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def includes(cls, inst):
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return isinstance(inst, cls)
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@classmethod
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def can_parse(cls, obj):
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return False
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def _parse(self):
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self._parsed = True
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def _get_dict_members(self, cat=None):
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"""
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For given category a dictionary is returned mapping member names to
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members of that category. For names that are duplicated the name is
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mapped to None.
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"""
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self.confirm_no_error()
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if cat not in self._dict_members:
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new_dict = {}
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for mem in self.in_category(cat):
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if mem.name() not in new_dict:
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new_dict[mem.name()] = mem
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else:
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new_dict[mem.name()] = self.Duplicate
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self._dict_members[cat] = new_dict
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return self._dict_members[cat]
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def in_category(self, cat):
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self.confirm_no_error()
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if cat is None:
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return self._members
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if cat not in self._in_category:
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self._in_category[cat] = [mem for mem in self._members
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if cat.includes(mem)]
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return self._in_category[cat]
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def get_member(self, name, cat=None):
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self.confirm_no_error()
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# Check if it's in a namespace or class.
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bits = name.split('::')
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first = bits[0]
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rest = '::'.join(bits[1:])
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member = self._get_dict_members(cat).get(first, self.NoSuchMember)
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# Raise any errors that are returned.
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if member in set([self.NoSuchMember, self.Duplicate]):
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raise member()
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if rest:
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return member.get_member(rest, cat=cat)
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return member
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def has_member(self, name, cat=None):
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try:
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mem = self.get_member(name, cat=cat)
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return True
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except self.NoSuchMember:
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return False
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def data(self):
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self.confirm_no_error()
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return self._data
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def members(self):
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self.confirm_no_error()
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return self._members
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def process_memberdefs(self):
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mdtss = []
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for sec in self._retrieved_data.compounddef.sectiondef:
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mdtss += sec.memberdef
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# At the moment we lose all information associated with sections.
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# Sometimes a memberdef is in several sectiondef.
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# We make sure we don't get duplicates here.
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uniques = set([])
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for mem in mdtss:
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converted = self.convert_mem(mem)
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pair = (mem.name, mem.__class__)
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if pair not in uniques:
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uniques.add(pair)
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self._members.append(converted)
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def retrieve_data(self):
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filename = os.path.join(self._xml_path, self.refid + '.xml')
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try:
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self._retrieved_data = compound.parse(filename)
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except ExpatError:
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print('Error in xml in file %s' % filename)
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self._error = True
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self._retrieved_data = None
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def check_parsed(self):
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if not self._parsed:
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self._parse()
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def confirm_no_error(self):
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self.check_parsed()
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if self._error:
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raise self.ParsingError()
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def error(self):
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self.check_parsed()
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return self._error
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def name(self):
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# first see if we can do it without processing.
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if self._parse_data is not None:
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return self._parse_data.name
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self.check_parsed()
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return self._retrieved_data.compounddef.name
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