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# File 'lib/acceptance_test/gherkin_ext.rb', line 5
def self.enable_external_source data_reader
lexer = Gherkin::Lexer::I18nLexer
lexer.class_eval do
@data_reader = data_reader
def self.data_reader @data_reader
end
alias_method :old_scan, :scan
def scan(source)
old_scan self.class.modify_source(source)
rescue Exception => e
unless e.kind_of? Gherkin::Parser::ParseError
puts "Error while parsing gherkin file:"
puts " Error: #{e.message}"
puts " Caller: #{caller}"
puts " Content: #{source}"
end
end
private
def self.modify_source source
if check_file_tag(source)
new_source = ""
source.each_line do |line|
if check_file_tag(line) and line.strip[0] != "#"
part1, part2 = line.split(",")
source_path = part1.gsub('file:', '').gsub('|', '').strip
key = part2 ? part2.gsub('key:', '').gsub('|', '').strip : nil
if source_path
values = self.data_reader.call(source_path)
data = key.nil? ? values : values[key]
if data && data.size > 0
new_source += build_data_section data
else
puts "Cannot find source for #{key}."
new_source += line
end
end
else
new_source += line
end
new_source += "\n"
end
new_source
else
source
end
end
def self.check_file_tag text
encoded_text = text.encode('UTF-8', 'binary', invalid: :replace, undef: :replace, replace: '')
encoded_text =~ /file\s?:/
end
def self.build_data_section rows, build_titles=true
buffer = ""
if build_titles and rows.first.kind_of?(Hash)
buffer += " |"
rows.first.each do |element|
buffer += " #{element[0]} |"
end
buffer += "\n"
end
rows.each do |row|
buffer += " |"
row.each do |element|
if element.kind_of? Array
buffer += " #{element[1]} |"
else
buffer += " #{element} |"
end
end
buffer += "\n"
end
buffer
end
end
end
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