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module Gitlab
module Search
class Query < SimpleDelegator
def initialize(query, filter_opts = {}, &block)
@raw_query = query.dup
@filters = []
@filter_options = { default_parser: :downcase.to_proc }.merge(filter_opts)
self.instance_eval(&block) if block_given?
@query = Gitlab::Search::ParsedQuery.new(*extract_filters)
# set the ParsedQuery as our default delegator thanks to SimpleDelegator
super(@query)
end
private
def filter(name, **attributes)
filter = { parser: @filter_options[:default_parser], name: name }.merge(attributes)
@filters << filter
end
def filter_options(**options)
@filter_options.merge!(options)
end
def extract_filters
fragments = []
filters = @filters.each_with_object([]) do |filter, parsed_filters|
match = @raw_query.split.find { |part| part =~ /\A#{filter[:name]}:/ }
next unless match
input = match.split(':')[1..-1].join
next if input.empty?
filter[:value] = parse_filter(filter, input)
filter[:regex_value] = Regexp.escape(filter[:value]).gsub('\*', '.*?')
fragments << match
parsed_filters << filter
end
query = (@raw_query.split - fragments).join(' ')
[query, filters]
end
def parse_filter(filter, input)
filter[:parser].call(input)
end
end
end
end
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