class Liquid::Expression

Constants

DOUBLE_QUOTED_STRING
FLOATS_REGEX
INTEGERS_REGEX
LITERALS
RANGES_REGEX

Use an atomic group (?>…) to avoid pathological backtracing from malicious input as described in github.com/Shopify/liquid/issues/1357

SINGLE_QUOTED_STRING

Public Class Methods

parse(markup) click to toggle source
# File lib/liquid/expression.rb, line 22
def self.parse(markup)
  case markup
  when nil
    nil
  when SINGLE_QUOTED_STRING, DOUBLE_QUOTED_STRING
    Regexp.last_match(1)
  when INTEGERS_REGEX
    Regexp.last_match(1).to_i
  when RANGES_REGEX
    RangeLookup.parse(Regexp.last_match(1), Regexp.last_match(2))
  when FLOATS_REGEX
    Regexp.last_match(1).to_f
  else
    markup = markup.strip
    if LITERALS.key?(markup)
      LITERALS[markup]
    else
      VariableLookup.parse(markup)
    end
  end
end