ThirdParty/Pygments/pygments/lexers/qvt.py

changeset 4697
c2e9bf425554
child 5713
6762afd9f963
diff -r bf4d19a7cade -r c2e9bf425554 ThirdParty/Pygments/pygments/lexers/qvt.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ThirdParty/Pygments/pygments/lexers/qvt.py	Sun Jan 24 19:28:37 2016 +0100
@@ -0,0 +1,150 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.qvt
+    ~~~~~~~~~~~~~~~~~~~
+
+    Lexer for QVT Operational language.
+
+    :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexer import RegexLexer, bygroups, include, combined
+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|library)(\s+)([a-zA-Z0-9_]+)',
+             bygroups(Keyword.Word, Text, Name.Class)),
+            (r'(exception)(\s+)([a-zA-Z0-9_]+)', 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_][a-zA-Z0-9_]*)(::)([a-zA-Z_][a-zA-Z0-9_]*)',
+            # bygroups(Text, Text, Text)),
+            ],
+
+        'fromimport': [
+            (r'(?:[ \t]|\\\n)+', Text),
+            (r'[a-zA-Z_][a-zA-Z0-9_.]*', Name.Namespace),
+            (r'', Text, '#pop'),
+            ],
+
+        'operation': [
+            (r'::', Text),
+            (r'(.*::)([a-zA-Z_][a-zA-Z0-9_]*)[ \t]*(\()', bygroups(Text,Name.Function, Text), '#pop')
+            ],
+
+        'assert': [
+            (r'(warning|error|fatal)\b', Keyword, '#pop'),
+            (r'', Text, '#pop') # all else: go back
+            ],
+
+        'keywords': [
+            (r'(abstract|access|any|assert|'
+             r'blackbox|break|case|collect|collectNested|'
+             r'collectOne|collectselect|collectselectOne|composes|'
+             r'compute|configuration|constructor|continue|datatype|'
+             r'default|derived|disjuncts|do|elif|else|end|'
+             r'endif|except|exists|extends|'
+             r'forAll|forEach|forOne|from|if|'
+             r'implies|in|inherits|init|inout|'
+             r'intermediate|invresolve|invresolveIn|invresolveone|'
+             r'invresolveoneIn|isUnique|iterate|late|let|'
+             r'literal|log|map|merges|'
+             r'modeltype|new|object|one|'
+             r'ordered|out|package|population|'
+             r'property|raise|readonly|references|refines|'
+             r'reject|resolve|resolveIn|resolveone|resolveoneIn|'
+             r'return|select|selectOne|sortedBy|static|switch|'
+             r'tag|then|try|typedef|'
+             r'unlimited|uses|when|where|while|with|'
+             r'xcollect|xmap|xselect)\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': [
+            ('[a-zA-Z_][a-zA-Z0-9_]*', 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)
+        ],
+       }
+

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