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Contents
# frozen_string_literal: true
module Katalyst
module Tables
module Collection
module Query
class Parser # :nodoc:
# query [StringScanner]
attr_accessor :query
attr_reader :collection, :untagged, :tagged
def initialize(collection)
@collection = collection
@tagged = {}
@untagged = []
end
# @param query [String]
def parse(query)
@query = StringScanner.new(query)
until @query.eos?
skip_whitespace
# break to ensure we don't loop indefinitely on bad input
break unless take_tagged || take_untagged
end
self
end
def token_at_position(position:)
tagged.values.detect { |v| v.range.cover?(position) } ||
untagged.detect { |v| v.range.cover?(position) }
end
private
def skip_whitespace
query.scan(/\s+/)
end
def take_tagged
start = query.charpos
return unless query.scan(/(\w+(\.\w+)?):/)
key, = query.values_at(1)
skip_whitespace
tagged[key] = value_parser(key, start).parse(query)
end
def take_untagged
start = query.charpos
return unless query.scan(/\S+/)
untagged << UntaggedLiteral.new(value: query.matched, start:)
untagged
end
using Type::Helpers::Extensions
def value_parser(key, start)
if query.check(/#{'\['}\s*/)
ArrayValueParser.new(key:, start:)
else
SingleValueParser.new(key:, start:)
end
end
end
end
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems