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90 lines
3.4 KiB
90 lines
3.4 KiB
""" |
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pygments.lexers.usd |
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~~~~~~~~~~~~~~~~~~~ |
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The module that parses Pixar's Universal Scene Description file format. |
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:copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS. |
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:license: BSD, see LICENSE for details. |
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""" |
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from pygments.lexer import RegexLexer, bygroups |
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from pygments.lexer import words as words_ |
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from pygments.lexers._usd_builtins import COMMON_ATTRIBUTES, KEYWORDS, \ |
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OPERATORS, SPECIAL_NAMES, TYPES |
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from pygments.token import Comment, Keyword, Name, Number, Operator, \ |
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Punctuation, String, Text, Whitespace |
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__all__ = ["UsdLexer"] |
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def _keywords(words, type_): |
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return [(words_(words, prefix=r"\b", suffix=r"\b"), type_)] |
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_TYPE = r"(\w+(?:\[\])?)" |
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_BASE_ATTRIBUTE = r"(\w+(?:\:\w+)*)(?:(\.)(timeSamples))?" |
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_WHITESPACE = r"([ \t]+)" |
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class UsdLexer(RegexLexer): |
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""" |
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A lexer that parses Pixar's Universal Scene Description file format. |
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.. versionadded:: 2.6 |
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""" |
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name = "USD" |
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url = 'https://graphics.pixar.com/usd/release/index.html' |
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aliases = ["usd", "usda"] |
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filenames = ["*.usd", "*.usda"] |
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tokens = { |
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"root": [ |
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(r"(custom){_WHITESPACE}(uniform)(\s+){}(\s+){}(\s*)(=)".format( |
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_TYPE, _BASE_ATTRIBUTE, _WHITESPACE=_WHITESPACE), |
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bygroups(Keyword.Token, Whitespace, Keyword.Token, Whitespace, |
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Keyword.Type, Whitespace, Name.Attribute, Text, |
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Name.Keyword.Tokens, Whitespace, Operator)), |
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(r"(custom){_WHITESPACE}{}(\s+){}(\s*)(=)".format( |
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_TYPE, _BASE_ATTRIBUTE, _WHITESPACE=_WHITESPACE), |
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bygroups(Keyword.Token, Whitespace, Keyword.Type, Whitespace, |
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Name.Attribute, Text, Name.Keyword.Tokens, Whitespace, |
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Operator)), |
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(r"(uniform){_WHITESPACE}{}(\s+){}(\s*)(=)".format( |
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_TYPE, _BASE_ATTRIBUTE, _WHITESPACE=_WHITESPACE), |
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bygroups(Keyword.Token, Whitespace, Keyword.Type, Whitespace, |
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Name.Attribute, Text, Name.Keyword.Tokens, Whitespace, |
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Operator)), |
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(r"{}{_WHITESPACE}{}(\s*)(=)".format( |
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_TYPE, _BASE_ATTRIBUTE, _WHITESPACE=_WHITESPACE), |
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bygroups(Keyword.Type, Whitespace, Name.Attribute, Text, |
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Name.Keyword.Tokens, Whitespace, Operator)), |
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] + |
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_keywords(KEYWORDS, Keyword.Tokens) + |
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_keywords(SPECIAL_NAMES, Name.Builtins) + |
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_keywords(COMMON_ATTRIBUTES, Name.Attribute) + |
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[(r"\b\w+:[\w:]+\b", Name.Attribute)] + |
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_keywords(OPERATORS, Operator) + # more attributes |
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[(type_ + r"\[\]", Keyword.Type) for type_ in TYPES] + |
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_keywords(TYPES, Keyword.Type) + |
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[ |
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(r"[(){}\[\]]", Punctuation), |
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("#.*?$", Comment.Single), |
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(",", Punctuation), |
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(";", Punctuation), # ";"s are allowed to combine separate metadata lines |
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("=", Operator), |
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(r"[-]*([0-9]*[.])?[0-9]+(?:e[+-]*\d+)?", Number), |
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(r"'''(?:.|\n)*?'''", String), |
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(r'"""(?:.|\n)*?"""', String), |
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(r"'.*?'", String), |
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(r'".*?"', String), |
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(r"<(\.\./)*([\w/]+|[\w/]+\.\w+[\w:]*)>", Name.Namespace), |
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(r"@.*?@", String.Interpol), |
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(r'\(.*"[.\\n]*".*\)', String.Doc), |
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(r"\A#usda .+$", Comment.Hashbang), |
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(r"\s+", Whitespace), |
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(r"\w+", Text), |
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(r"[_:.]+", Punctuation), |
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], |
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}
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