lexers/less.lua

   1 -- Copyright 2006-2013 Robert Gieseke. See LICENSE.
   2 -- Less CSS LPeg lexer.
   3 -- http://lesscss.org
   4
   5 local l = require('lexer')
   6 local token = l.token
   7 local S = lpeg.S
   8
   9 local M = {_NAME = 'less'}
  10
  11 -- Line comments.
  12 local line_comment = token(l.COMMENT, '//' * l.nonnewline^0)
  13
  14 -- Variables.
  15 local variable = token(l.VARIABLE, '@' * (l.alnum + S('_-{}'))^1)
  16
  17 local css = l.load('css')
  18 local _rules = css._rules
  19 table.insert(_rules, #_rules - 1, {'line_comment', line_comment})
  20 table.insert(_rules, #_rules - 1, {'variable', variable})
  21 M._rules = _rules
  22
  23 M._tokenstyles = css._tokenstyles
  24
  25 M._foldsymbols = css._foldsymbols
  26
  27 return M