eric6/ThirdParty/Pygments/pygments/lexers/clean.py

changeset 6942
2602857055c5
parent 6651
e8f3b5568b21
child 7547
21b0534faebc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/ThirdParty/Pygments/pygments/lexers/clean.py	Sun Apr 14 15:09:21 2019 +0200
@@ -0,0 +1,178 @@
+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.clean
+    ~~~~~~~~~~~~~~~~~~~~~
+
+    Lexer for the Clean language.
+
+    :copyright: Copyright 2006-2015 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+from pygments.lexer import ExtendedRegexLexer, words, include, bygroups
+from pygments.token import Comment, Error, Keyword, Literal, Name, Number, \
+    Operator, Punctuation, String, Whitespace
+
+__all__ = ['CleanLexer']
+
+
+class CleanLexer(ExtendedRegexLexer):
+    """
+    Lexer for the general purpose, state-of-the-art, pure and lazy functional
+    programming language Clean (http://clean.cs.ru.nl/Clean).
+
+    .. versionadded: 2.2
+    """
+    name = 'Clean'
+    aliases = ['clean']
+    filenames = ['*.icl', '*.dcl']
+
+    keywords = (
+        'case', 'ccall', 'class', 'code', 'code inline', 'derive', 'export',
+        'foreign', 'generic', 'if', 'in', 'infix', 'infixl', 'infixr',
+        'instance', 'let', 'of', 'otherwise', 'special', 'stdcall', 'where',
+        'with')
+
+    modulewords = ('implementation', 'definition', 'system')
+
+    lowerId = r'[a-z`][\w\d`]*'
+    upperId = r'[A-Z`][\w\d`]*'
+    funnyId = r'[~@#\$%\^?!+\-*<>\\/|&=:]+'
+    scoreUpperId = r'_' + upperId
+    scoreLowerId = r'_' + lowerId
+    moduleId = r'[a-zA-Z_][a-zA-Z0-9_.`]+'
+    classId = '|'.join([lowerId, upperId, funnyId])
+
+    tokens = {
+        'root': [
+            include('comments'),
+            include('keywords'),
+            include('module'),
+            include('import'),
+            include('whitespace'),
+            include('literals'),
+            include('operators'),
+            include('delimiters'),
+            include('names'),
+        ],
+        'whitespace': [
+            (r'\s+', Whitespace),
+        ],
+        'comments': [
+            (r'//.*\n', Comment.Single),
+            (r'/\*', Comment.Multi, 'comments.in'),
+            (r'/\*\*', Comment.Special, 'comments.in'),
+        ],
+        'comments.in': [
+            (r'\*\/', Comment.Multi, '#pop'),
+            (r'/\*', Comment.Multi, '#push'),
+            (r'[^*/]+', Comment.Multi),
+            (r'\*(?!/)', Comment.Multi),
+            (r'/', Comment.Multi),
+        ],
+        'keywords': [
+            (words(keywords, prefix=r'\b', suffix=r'\b'), Keyword),
+        ],
+        'module': [
+            (words(modulewords, prefix=r'\b', suffix=r'\b'), Keyword.Namespace),
+            (r'\bmodule\b', Keyword.Namespace, 'module.name'),
+        ],
+        'module.name': [
+            include('whitespace'),
+            (moduleId, Name.Class, '#pop'),
+        ],
+        'import': [
+            (r'\b(import)\b(\s*)', bygroups(Keyword, Whitespace), 'import.module'),
+            (r'\b(from)\b(\s*)\b(' + moduleId + r')\b(\s*)\b(import)\b',
+                bygroups(Keyword, Whitespace, Name.Class, Whitespace, Keyword),
+                'import.what'),
+        ],
+        'import.module': [
+            (r'\b(qualified)\b(\s*)', bygroups(Keyword, Whitespace)),
+            (r'(\s*)\b(as)\b', bygroups(Whitespace, Keyword), ('#pop', 'import.module.as')),
+            (moduleId, Name.Class),
+            (r'(\s*)(,)(\s*)', bygroups(Whitespace, Punctuation, Whitespace)),
+            (r'\s*', Whitespace, '#pop'),
+        ],
+        'import.module.as': [
+            include('whitespace'),
+            (lowerId, Name.Class, '#pop'),
+            (upperId, Name.Class, '#pop'),
+        ],
+        'import.what': [
+            (r'\b(class)\b(\s+)(' + classId + r')',
+                bygroups(Keyword, Whitespace, Name.Class), 'import.what.class'),
+            (r'\b(instance)(\s+)(' + classId + r')(\s+)',
+                bygroups(Keyword, Whitespace, Name.Class, Whitespace), 'import.what.instance'),
+            (r'(::)(\s*)\b(' + upperId + r')\b',
+                bygroups(Punctuation, Whitespace, Name.Class), 'import.what.type'),
+            (r'\b(generic)\b(\s+)\b(' + lowerId + '|' + upperId + r')\b',
+                bygroups(Keyword, Whitespace, Name)),
+            include('names'),
+            (r'(,)(\s+)', bygroups(Punctuation, Whitespace)),
+            (r'$', Whitespace, '#pop'),
+            include('whitespace'),
+        ],
+        'import.what.class': [
+            (r',', Punctuation, '#pop'),
+            (r'\(', Punctuation, 'import.what.class.members'),
+            (r'$', Whitespace, '#pop:2'),
+            include('whitespace'),
+        ],
+        'import.what.class.members': [
+            (r',', Punctuation),
+            (r'\.\.', Punctuation),
+            (r'\)', Punctuation, '#pop'),
+            include('names'),
+        ],
+        'import.what.instance': [
+            (r'[,)]', Punctuation, '#pop'),
+            (r'\(', Punctuation, 'import.what.instance'),
+            (r'$', Whitespace, '#pop:2'),
+            include('whitespace'),
+            include('names'),
+        ],
+        'import.what.type': [
+            (r',', Punctuation, '#pop'),
+            (r'[({]', Punctuation, 'import.what.type.consesandfields'),
+            (r'$', Whitespace, '#pop:2'),
+            include('whitespace'),
+        ],
+        'import.what.type.consesandfields': [
+            (r',', Punctuation),
+            (r'\.\.', Punctuation),
+            (r'[)}]', Punctuation, '#pop'),
+            include('names'),
+        ],
+        'literals': [
+            (r'\'([^\'\\]|\\(x[\da-fA-F]+|\d+|.))\'', Literal.Char),
+            (r'[+~-]?0[0-7]+\b', Number.Oct),
+            (r'[+~-]?\d+\.\d+(E[+-]?\d+)?', Number.Float),
+            (r'[+~-]?\d+\b', Number.Integer),
+            (r'[+~-]?0x[\da-fA-F]+\b', Number.Hex),
+            (r'True|False', Literal),
+            (r'"', String.Double, 'literals.stringd'),
+        ],
+        'literals.stringd': [
+            (r'[^\\"\n]+', String.Double),
+            (r'"', String.Double, '#pop'),
+            (r'\\.', String.Double),
+            (r'[$\n]', Error, '#pop'),
+        ],
+        'operators': [
+            (r'[-~@#\$%\^?!+*<>\\/|&=:\.]+', Operator),
+            (r'\b_+\b', Operator),
+        ],
+        'delimiters': [
+            (r'[,;(){}\[\]]', Punctuation),
+            (r'(\')([\w`.]+)(\')',
+                bygroups(Punctuation, Name.Class, Punctuation)),
+        ],
+        'names': [
+            (lowerId, Name),
+            (scoreLowerId, Name),
+            (funnyId, Name.Function),
+            (upperId, Name.Class),
+            (scoreUpperId, Name.Class),
+        ]
+    }

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