mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-09 17:31:45 +00:00
mvd info to module, add testing, setattr & getattr
This commit is contained in:
Geert Hesselink
committed by
Thomas Krijnen
Thomas Krijnen
parent
9f11568aff
commit
cbe8fc1ebd
@@ -37,9 +37,7 @@ from typing import Any
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from . import ifcopenshell_wrapper
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from .entity_instance import entity_instance
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from lark import Lark, Transformer
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from lark.exceptions import UnexpectedCharacters, UnexpectedEOF, UnexpectedToken
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from ifcopenshell.util.mvd_info import MvdInfo, LARK_AVAILABLE
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if TYPE_CHECKING:
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import ifcopenshell.util.schema
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@@ -211,106 +209,6 @@ NO_HEADER = ifcopenshell_wrapper.file_open_status.NO_HEADER
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UNSUPPORTED_SCHEMA = ifcopenshell_wrapper.file_open_status.UNSUPPORTED_SCHEMA
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INVALID_SYNTAX = ifcopenshell_wrapper.file_open_status.INVALID_SYNTAX
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mvd_grammar = r'''
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start: entry+
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entry: "ViewDefinition" "[" simple_value_list "]" -> view_definition
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| "Comment" "[" comment_text "]" -> comment
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| GENERIC_KEYWORD "[" value_list_set "]" -> dynamic_option
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%declare COMMENT_TEXT // Ensure Lark treats it with higher priority
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GENERIC_KEYWORD: /[A-Za-z0-9_]+/
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simple_value_list: value ("," value)*
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value_list_set: value_set (";" value_set)*
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value_set: set_name ":" simple_value_list
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set_name: /[A-Za-z0-9_]+/
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value: /[A-Za-z0-9 _\.-]+/
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comment_text: /[^\[\]]+/ // Free text inside COMMENT brackets
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%import common.WS
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%ignore WS
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'''
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parser = Lark(mvd_grammar, parser='lalr')
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class DescriptionTransform(Transformer):
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def __init__(self):
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self.mvd = []
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self.keywords = set()
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self.comments = ""
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self.exchangerequirement = ""
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self.option = ''
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def view_definition(self, args):
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self.keywords.add('mvd')
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self.mvd.extend(args[0])
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def dynamic_option(self, args):
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"""
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e.g. in case of 'Remark' as optional keyword in the description
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The value can be retrieved through DescriptionTransform.remark
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"""
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key = str(args[0]).lower()
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attr_name = f"{key}"
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if attr_name not in self.keywords:
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setattr(self, attr_name, {})
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self.keywords.add(attr_name)
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dynamic_dict = getattr(self, attr_name)
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for value_set in args[1]:
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set_name, *values = value_set
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dynamic_dict[set_name] = values if len(values) > 1 else values[0]
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def comment(self, args):
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self.keywords.add('comment')
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self.comments = " ".join(str(child) for child in args[0].children).strip()
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def simple_value_list(self, args):
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return [str(arg) for arg in args]
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def value_list_set(self, args):
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return args
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def value_set(self, args):
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return [str(args[0])] + args[1]
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def value(self, args):
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return str(args[0])
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def set_name(self, args):
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return str(args[0])
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@property
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def other_keywords(self):
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""""
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The predefined keywords are 'ViewDefinition', 'Option', 'Comment', 'ExchangeRequirement' and 'Option'
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Keywords in the description not from this lists are returned
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"""
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return {k for k in self.keywords if k not in {'mvd', 'comment', 'exchangerequirement', 'option'}}
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def parse_mvd(description):
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text = ' '.join(description)
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parser = Lark(mvd_grammar, parser='lalr')
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parsed_description = DescriptionTransform()
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try:
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if not text:
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parsed_description.mvd = None
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return parsed_description
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parse_tree = parser.parse(text)
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parsed_description.transform(parse_tree)
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except (UnexpectedCharacters, UnexpectedEOF, UnexpectedToken) as e:
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parsed_description.mvd = None
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return parsed_description
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class file:
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"""Base class for containing IFC files.
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@@ -409,7 +307,6 @@ class file:
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import weakref
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file_dict[self.file_pointer()] = weakref.ref(self)
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self.parsed_description = parse_mvd(self.wrapped_data.header.file_description.description)
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def __del__(self) -> None:
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# Avoid infinite recursion if file is failed to initialize
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@@ -569,68 +466,16 @@ class file:
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number = re.search(prefix + r"(\d)", schema)
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version.append(int(number.group(1)) if number else 0)
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return tuple(version)
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@property
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def mvd(self) -> str:
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"""
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View Definition supported by the exporting application that is reflected in the IFC file
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For example:
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“CoordinationView”
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| “PresentationView”
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| “StructuralAnalysisView”
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| “FMHandOverView”
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| “QuantityTakeOffAddOnView”
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| “SpaceBoundary1stLevelAddOnView”
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| “SpaceBoundary2ndLevelAddOnView”
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"""
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return ','.join(self.parsed_description.mvd)
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@property
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def mvd_comments(self) -> str:
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"""
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For example; 'Comment [This
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export contains Boolean Operation geometry that may not be fully
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supported by other application]'
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f.mvd_comments
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'This export contains Boolean Operation geometry that may not be fully supported by other application'
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"""
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return str(self.parsed_description.comments)
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@property
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def mvd_exchange_requirements(self) -> str:
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return str(self.parsed_description.exchangerequirement)
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@property
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def mvd_options(self) -> str:
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"""
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Option being used by the exporting application for e.g. quality control and debugging
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a. this is an optional field providing informal information, the values for the Option keyword
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reflect the export settings of the exporting software application, those settings may be
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specific to the exporting software
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For example:
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> "{'ExcludedObjects': [' Stair', ' Ramp', ' Space'], 'SplitLevel': ' On'}"
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"""
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return str(self.parsed_description.option)
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@property
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def mvd_keywords(self) -> str:
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"""
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Returns all keywords from description, e.g.
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f.mvd_keywords
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"{'exchangerequirement', 'mvd', 'option', 'comment', 'remark'}"_
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"""
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return str(self.parsed_description.keywords)
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@property
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def mvd_optional_keyword_fields(self) -> str:
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""""
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Returns fields from keywords other than 'ViewDefinition', 'Option', 'Comment' and 'ExchangeRequirement'.
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For example, in case of
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'REMARK [SomeKey: SomeValue; AnotherKey: AnotherValue]'
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file.mvd_optional_keywords_fields == "{'remark': {'SomeKey': ' SomeValue', 'AnotherKey': ' AnotherValue'}}"
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"""
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return str({kw: getattr(self.parsed_description, kw) for kw in self.parsed_description.other_keywords})
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def mvd(self):
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if not LARK_AVAILABLE:
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return None
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file_description = self.wrapped_data.header.file_description
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return MvdInfo(
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get_description=lambda: file_description.description,
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set_description=lambda d: setattr(file_description, "description", tuple(d))
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)
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def __getattr__(self, attr) -> Union[Any, Callable[..., ifcopenshell.entity_instance]]:
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if attr[0:6] == "create":
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