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109 lines
3.9 KiB
109 lines
3.9 KiB
4 years ago
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"""
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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 2006-2021 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
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__all__ = ['DevicetreeLexer']
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class DevicetreeLexer(RegexLexer):
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"""
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Lexer for `Devicetree <https://www.devicetree.org/>`_ files.
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.. versionadded:: 2.7
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"""
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name = 'Devicetree'
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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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#: 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', Text),
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(r'\s+', Text),
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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 delimeter
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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)),
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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&]+|/)(@?)([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&]+|/)(@?)([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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