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