litcoffee.lua (766B)
- -- Copyright 2006-2024 Robert Gieseke. See LICENSE.
- -- Literate CoffeeScript LPeg lexer.
- -- http://coffeescript.org/#literate
- local lexer = require('lexer')
- local token = lexer.token
- local P, S = lpeg.P, lpeg.S
- local lex = lexer.new('litcoffee', {inherit = lexer.load('markdown')})
- -- Embedded CoffeeScript.
- local coffeescript = lexer.load('coffeescript')
- local coffee_start_rule = token(lexer.EMBEDDED, (P(' ')^4 + P('\t')))
- local coffee_end_rule = token(lexer.EMBEDDED, lexer.newline)
- lex:embed(coffeescript, coffee_start_rule, coffee_end_rule)
- -- Use 'markdown_whitespace' instead of lexer.WHITESPACE since the latter would expand to
- -- 'litcoffee_whitespace'.
- lex:modify_rule('whitespace', token('markdown_whitespace', S(' \t')^1 + S('\r\n')^1))
- return lex