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-- Copyright 2006-2025 Robert Gieseke. See LICENSE.
-- Sass CSS preprocessor LPeg lexer.
-- http://sass-lang.com
local lexer = lexer
local P, S = lpeg.P, lpeg.S
local lex = lexer.new(..., {inherit = lexer.load('css')})
-- Line comments.
lex:add_rule('line_comment', lex:tag(lexer.COMMENT, lexer.to_eol('//')))
-- Variables.
lex:add_rule('variable', lex:tag(lexer.VARIABLE, '$' * (lexer.alnum + S('_-'))^1))
-- Mixins.
lex:add_rule('mixin', lex:tag(lexer.PREPROCESSOR, '@' * lexer.word))
lexer.property['scintillua.comment'] = '//'
return lex
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