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Contents
module Gherkin
module Parser
class TagExpression
require 'gherkin/java_impl'
java_impl('gherkin.jar')
attr_reader :limits
def initialize(tag_expressions)
@ands = []
@limits = {}
tag_expressions.each do |expr|
add(expr.strip.split(/\s*,\s*/))
end
end
def empty?
@ands.empty?
end
def eval(tags)
return true if @ands.flatten.empty?
vars = Hash[*tags.map{|tag| [tag, true]}.flatten]
!!Kernel.eval(ruby_expression)
end
private
def add(tags)
negatives, positives = tags.partition{|tag| tag =~ /^~/}
positive_limits = Hash[*positives.map{|positive| tag, limit = positive.split(':'); [tag, limit ? limit.to_i : nil]}.flatten]
@limits.merge!(positive_limits)
@ands << (negatives + positive_limits.keys)
end
def ruby_expression
"(" + @ands.map do |ors|
ors.map do |tag|
if tag =~ /^~(.*)/
"!vars['#{$1}']"
else
"vars['#{tag}']"
end
end.join("||")
end.join(")&&(") + ")"
end
end
end
end
Version data entries
80 entries across 80 versions & 1 rubygems