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|
class JsRegex
#
# This class acts as a facade, passing a Regexp to the Converters.
#
# ::of returns a source String, options String, warnings Array, target String.
#
class Conversion
require 'regexp_parser'
require_relative 'converter'
require_relative 'error'
require_relative 'node'
require_relative 'second_pass'
require_relative 'target'
class << self
def of(input, options: nil, target: Target::ES2009)
target = Target.cast(target)
source, warnings, extra_opts = convert_source(input, target)
options_string = convert_options(input, options, extra_opts)
[source, options_string, warnings, target]
end
private
def convert_source(input, target)
tree = Regexp::Parser.parse(input)
context = Converter::Context.new(
case_insensitive_root: tree.i?,
target: target,
)
converted_tree = Converter.convert(tree, context)
final_tree = SecondPass.call(converted_tree)
[final_tree.to_s, context.warnings, context.required_options]
rescue Regexp::Parser::Error => e
raise e.extend(JsRegex::Error)
end
def convert_options(input, custom_options, required_options)
options = custom_options.to_s.scan(/[gimsuy]/) + required_options
if input.is_a?(Regexp) && (input.options & Regexp::IGNORECASE).nonzero?
options << 'i'
end
options.uniq.sort.join
end
end
end
end
|
