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Diffstat (limited to 'venv/lib/python3.9/site-packages/pygments/lexers/qvt.py')
| -rw-r--r-- | venv/lib/python3.9/site-packages/pygments/lexers/qvt.py | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/venv/lib/python3.9/site-packages/pygments/lexers/qvt.py b/venv/lib/python3.9/site-packages/pygments/lexers/qvt.py new file mode 100644 index 00000000..dc329f7c --- /dev/null +++ b/venv/lib/python3.9/site-packages/pygments/lexers/qvt.py @@ -0,0 +1,151 @@ +""" + pygments.lexers.qvt + ~~~~~~~~~~~~~~~~~~~ + + Lexer for QVT Operational language. + + :copyright: Copyright 2006-2023 by the Pygments team, see AUTHORS. + :license: BSD, see LICENSE for details. +""" + +from pygments.lexer import RegexLexer, bygroups, include, combined, default, \ + words +from pygments.token import Text, Comment, Operator, Keyword, Punctuation, \ + Name, String, Number + +__all__ = ['QVToLexer'] + + +class QVToLexer(RegexLexer): + """ + For the `QVT Operational Mapping language <http://www.omg.org/spec/QVT/1.1/>`_. + + Reference for implementing this: «Meta Object Facility (MOF) 2.0 + Query/View/Transformation Specification», Version 1.1 - January 2011 + (http://www.omg.org/spec/QVT/1.1/), see §8.4, «Concrete Syntax» in + particular. + + Notable tokens assignments: + + - Name.Class is assigned to the identifier following any of the following + keywords: metamodel, class, exception, primitive, enum, transformation + or library + + - Name.Function is assigned to the names of mappings and queries + + - Name.Builtin.Pseudo is assigned to the pre-defined variables 'this', + 'self' and 'result'. + """ + # With obvious borrowings & inspiration from the Java, Python and C lexers + + name = 'QVTO' + aliases = ['qvto', 'qvt'] + filenames = ['*.qvto'] + + tokens = { + 'root': [ + (r'\n', Text), + (r'[^\S\n]+', Text), + (r'(--|//)(\s*)(directive:)?(.*)$', + bygroups(Comment, Comment, Comment.Preproc, Comment)), + # Uncomment the following if you want to distinguish between + # '/*' and '/**', à la javadoc + # (r'/[*]{2}(.|\n)*?[*]/', Comment.Multiline), + (r'/[*](.|\n)*?[*]/', Comment.Multiline), + (r'\\\n', Text), + (r'(and|not|or|xor|##?)\b', Operator.Word), + (r'(:{1,2}=|[-+]=)\b', Operator.Word), + (r'(@|<<|>>)\b', Keyword), # stereotypes + (r'!=|<>|==|=|!->|->|>=|<=|[.]{3}|[+/*%=<>&|.~]', Operator), + (r'[]{}:(),;[]', Punctuation), + (r'(true|false|unlimited|null)\b', Keyword.Constant), + (r'(this|self|result)\b', Name.Builtin.Pseudo), + (r'(var)\b', Keyword.Declaration), + (r'(from|import)\b', Keyword.Namespace, 'fromimport'), + (r'(metamodel|class|exception|primitive|enum|transformation|' + r'library)(\s+)(\w+)', + bygroups(Keyword.Word, Text, Name.Class)), + (r'(exception)(\s+)(\w+)', + bygroups(Keyword.Word, Text, Name.Exception)), + (r'(main)\b', Name.Function), + (r'(mapping|helper|query)(\s+)', + bygroups(Keyword.Declaration, Text), 'operation'), + (r'(assert)(\s+)\b', bygroups(Keyword, Text), 'assert'), + (r'(Bag|Collection|Dict|OrderedSet|Sequence|Set|Tuple|List)\b', + Keyword.Type), + include('keywords'), + ('"', String, combined('stringescape', 'dqs')), + ("'", String, combined('stringescape', 'sqs')), + include('name'), + include('numbers'), + # (r'([a-zA-Z_]\w*)(::)([a-zA-Z_]\w*)', + # bygroups(Text, Text, Text)), + ], + + 'fromimport': [ + (r'(?:[ \t]|\\\n)+', Text), + (r'[a-zA-Z_][\w.]*', Name.Namespace), + default('#pop'), + ], + + 'operation': [ + (r'::', Text), + (r'(.*::)([a-zA-Z_]\w*)([ \t]*)(\()', + bygroups(Text, Name.Function, Text, Punctuation), '#pop') + ], + + 'assert': [ + (r'(warning|error|fatal)\b', Keyword, '#pop'), + default('#pop'), # all else: go back + ], + + 'keywords': [ + (words(( + 'abstract', 'access', 'any', 'assert', 'blackbox', 'break', + 'case', 'collect', 'collectNested', 'collectOne', 'collectselect', + 'collectselectOne', 'composes', 'compute', 'configuration', + 'constructor', 'continue', 'datatype', 'default', 'derived', + 'disjuncts', 'do', 'elif', 'else', 'end', 'endif', 'except', + 'exists', 'extends', 'forAll', 'forEach', 'forOne', 'from', 'if', + 'implies', 'in', 'inherits', 'init', 'inout', 'intermediate', + 'invresolve', 'invresolveIn', 'invresolveone', 'invresolveoneIn', + 'isUnique', 'iterate', 'late', 'let', 'literal', 'log', 'map', + 'merges', 'modeltype', 'new', 'object', 'one', 'ordered', 'out', + 'package', 'population', 'property', 'raise', 'readonly', + 'references', 'refines', 'reject', 'resolve', 'resolveIn', + 'resolveone', 'resolveoneIn', 'return', 'select', 'selectOne', + 'sortedBy', 'static', 'switch', 'tag', 'then', 'try', 'typedef', + 'unlimited', 'uses', 'when', 'where', 'while', 'with', 'xcollect', + 'xmap', 'xselect'), suffix=r'\b'), Keyword), + ], + + # There is no need to distinguish between String.Single and + # String.Double: 'strings' is factorised for 'dqs' and 'sqs' + 'strings': [ + (r'[^\\\'"\n]+', String), + # quotes, percents and backslashes must be parsed one at a time + (r'[\'"\\]', String), + ], + 'stringescape': [ + (r'\\([\\btnfr"\']|u[0-3][0-7]{2}|u[0-7]{1,2})', String.Escape) + ], + 'dqs': [ # double-quoted string + (r'"', String, '#pop'), + (r'\\\\|\\"', String.Escape), + include('strings') + ], + 'sqs': [ # single-quoted string + (r"'", String, '#pop'), + (r"\\\\|\\'", String.Escape), + include('strings') + ], + 'name': [ + (r'[a-zA-Z_]\w*', Name), + ], + # numbers: excerpt taken from the python lexer + 'numbers': [ + (r'(\d+\.\d*|\d*\.\d+)([eE][+-]?[0-9]+)?', Number.Float), + (r'\d+[eE][+-]?[0-9]+', Number.Float), + (r'\d+', Number.Integer) + ], + } |