/usr/lib/python2.7/dist-packages/pygments/lexers/qvt.py is in python-pygments 2.2.0+dfsg-1.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 | # -*- coding: utf-8 -*-
"""
pygments.lexers.qvt
~~~~~~~~~~~~~~~~~~~
Lexer for QVT Operational language.
:copyright: Copyright 2006-2017 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': [
('[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)
],
}
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