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venv/Lib/site-packages/pygments/lexers/inferno.py

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+# -*- coding: utf-8 -*-
+"""
+    pygments.lexers.inferno
+    ~~~~~~~~~~~~~~~~~~~~~~~
+
+    Lexers for Inferno os and all the related stuff.
+
+    :copyright: Copyright 2006-2020 by the Pygments team, see AUTHORS.
+    :license: BSD, see LICENSE for details.
+"""
+
+import re
+
+from pygments.lexer import RegexLexer, include, bygroups, default
+from pygments.token import Punctuation, Text, Comment, Operator, Keyword, \
+    Name, String, Number
+
+__all__ = ['LimboLexer']
+
+
+class LimboLexer(RegexLexer):
+    """
+    Lexer for `Limbo programming language <http://www.vitanuova.com/inferno/limbo.html>`_
+
+    TODO:
+        - maybe implement better var declaration highlighting
+        - some simple syntax error highlighting
+
+    .. versionadded:: 2.0
+    """
+    name = 'Limbo'
+    aliases = ['limbo']
+    filenames = ['*.b']
+    mimetypes = ['text/limbo']
+
+    tokens = {
+        'whitespace': [
+            (r'^(\s*)([a-zA-Z_]\w*:(\s*)\n)',
+             bygroups(Text, Name.Label)),
+            (r'\n', Text),
+            (r'\s+', Text),
+            (r'#(\n|(.|\n)*?[^\\]\n)', Comment.Single),
+        ],
+        'string': [
+            (r'"', String, '#pop'),
+            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|'
+             r'u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})', String.Escape),
+            (r'[^\\"\n]+', String), # all other characters
+            (r'\\', String), # stray backslash
+        ],
+        'statements': [
+            (r'"', String, 'string'),
+            (r"'(\\.|\\[0-7]{1,3}|\\x[a-fA-F0-9]{1,2}|[^\\\'\n])'", String.Char),
+            (r'(\d+\.\d*|\.\d+|\d+)[eE][+-]?\d+', Number.Float),
+            (r'(\d+\.\d*|\.\d+|\d+[fF])', Number.Float),
+            (r'16r[0-9a-fA-F]+', Number.Hex),
+            (r'8r[0-7]+', Number.Oct),
+            (r'((([1-3]\d)|([2-9]))r)?(\d+)', Number.Integer),
+            (r'[()\[\],.]', Punctuation),
+            (r'[~!%^&*+=|?:<>/-]|(->)|(<-)|(=>)|(::)', Operator),
+            (r'(alt|break|case|continue|cyclic|do|else|exit'
+             r'for|hd|if|implement|import|include|len|load|or'
+             r'pick|return|spawn|tagof|tl|to|while)\b', Keyword),
+            (r'(byte|int|big|real|string|array|chan|list|adt'
+             r'|fn|ref|of|module|self|type)\b', Keyword.Type),
+            (r'(con|iota|nil)\b', Keyword.Constant),
+            (r'[a-zA-Z_]\w*', Name),
+        ],
+        'statement' : [
+            include('whitespace'),
+            include('statements'),
+            ('[{}]', Punctuation),
+            (';', Punctuation, '#pop'),
+        ],
+        'root': [
+            include('whitespace'),
+            default('statement'),
+        ],
+    }
+
+    def analyse_text(text):
+        # Any limbo module implements something
+        if re.search(r'^implement \w+;', text, re.MULTILINE):
+            return 0.7
+
+# TODO:
+#   - Make lexers for:
+#       - asm sources
+#       - man pages
+#       - mkfiles
+#       - module definitions
+#       - namespace definitions
+#       - shell scripts
+#       - maybe keyfiles and fonts
+#   they all seem to be quite similar to their equivalents
+#   from unix world, so there should not be a lot of problems