109 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Python
		
	
	
	
			
		
		
	
	
			109 lines
		
	
	
		
			3.9 KiB
		
	
	
	
		
			Python
		
	
	
	
"""
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    pygments.lexers.devicetree
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    ~~~~~~~~~~~~~~~~~~~~~~~~~~
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    Lexers for Devicetree language.
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    :copyright: Copyright 2006-2025 by the Pygments team, see AUTHORS.
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    :license: BSD, see LICENSE for details.
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"""
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from pygments.lexer import RegexLexer, bygroups, include, default, words
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from pygments.token import Comment, Keyword, Name, Number, Operator, \
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    Punctuation, String, Text, Whitespace
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__all__ = ['DevicetreeLexer']
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class DevicetreeLexer(RegexLexer):
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    """
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    Lexer for Devicetree files.
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    """
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    name = 'Devicetree'
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    url = 'https://www.devicetree.org/'
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    aliases = ['devicetree', 'dts']
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    filenames = ['*.dts', '*.dtsi']
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    mimetypes = ['text/x-c']
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    version_added = '2.7'
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    #: optional Whitespace or /*...*/ style comment
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    _ws = r'\s*(?:/[*][^*/]*?[*]/\s*)*'
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    tokens = {
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        'macro': [
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            # Include preprocessor directives (C style):
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            (r'(#include)(' + _ws + r')([^\n]+)',
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             bygroups(Comment.Preproc, Comment.Multiline, Comment.PreprocFile)),
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            # Define preprocessor directives (C style):
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            (r'(#define)(' + _ws + r')([^\n]+)',
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             bygroups(Comment.Preproc, Comment.Multiline, Comment.Preproc)),
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            # devicetree style with file:
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            (r'(/[^*/{]+/)(' + _ws + r')("[^\n{]+")',
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             bygroups(Comment.Preproc, Comment.Multiline, Comment.PreprocFile)),
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            # devicetree style with property:
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            (r'(/[^*/{]+/)(' + _ws + r')([^\n;{]*)([;]?)',
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             bygroups(Comment.Preproc, Comment.Multiline, Comment.Preproc, Punctuation)),
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        ],
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        'whitespace': [
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            (r'\n', Whitespace),
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            (r'\s+', Whitespace),
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            (r'\\\n', Text),  # line continuation
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            (r'//(\n|[\w\W]*?[^\\]\n)', Comment.Single),
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            (r'/(\\\n)?[*][\w\W]*?[*](\\\n)?/', Comment.Multiline),
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            # Open until EOF, so no ending delimiter
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            (r'/(\\\n)?[*][\w\W]*', Comment.Multiline),
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        ],
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        'statements': [
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            (r'(L?)(")', bygroups(String.Affix, String), 'string'),
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            (r'0x[0-9a-fA-F]+', Number.Hex),
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            (r'\d+', Number.Integer),
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            (r'([^\s{}/*]*)(\s*)(:)', bygroups(Name.Label, Text, Punctuation), '#pop'),
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            (words(('compatible', 'model', 'phandle', 'status', '#address-cells',
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                    '#size-cells', 'reg', 'virtual-reg', 'ranges', 'dma-ranges',
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                    'device_type', 'name'), suffix=r'\b'), Keyword.Reserved),
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            (r'([~!%^&*+=|?:<>/#-])', Operator),
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            (r'[()\[\]{},.]', Punctuation),
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            (r'[a-zA-Z_][\w-]*(?=(?:\s*,\s*[a-zA-Z_][\w-]*|(?:' + _ws + r'))*\s*[=;])',
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             Name),
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            (r'[a-zA-Z_]\w*', Name.Attribute),
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        ],
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        'root': [
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            include('whitespace'),
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            include('macro'),
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            # Nodes
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            (r'([^/*@\s&]+|/)(@?)((?:0x)?[0-9a-fA-F,]*)(' + _ws + r')(\{)',
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             bygroups(Name.Function, Operator, Number.Integer,
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                      Comment.Multiline, Punctuation), 'node'),
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            default('statement'),
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        ],
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        'statement': [
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            include('whitespace'),
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            include('statements'),
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            (';', Punctuation, '#pop'),
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        ],
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        'node': [
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            include('whitespace'),
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            include('macro'),
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            (r'([^/*@\s&]+|/)(@?)((?:0x)?[0-9a-fA-F,]*)(' + _ws + r')(\{)',
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             bygroups(Name.Function, Operator, Number.Integer,
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                      Comment.Multiline, Punctuation), '#push'),
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            include('statements'),
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            (r'\};', Punctuation, '#pop'),
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            (';', Punctuation),
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        ],
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        'string': [
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            (r'"', String, '#pop'),
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            (r'\\([\\abfnrtv"\']|x[a-fA-F0-9]{2,4}|'
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             r'u[a-fA-F0-9]{4}|U[a-fA-F0-9]{8}|[0-7]{1,3})', String.Escape),
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            (r'[^\\"\n]+', String),  # all other characters
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            (r'\\\n', String),  # line continuation
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            (r'\\', String),  # stray backslash
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        ],
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    }
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