lib/trav3/options.rb in trav3-0.3.4 vs lib/trav3/options.rb in trav3-0.4.0
- old
+ new
@@ -4,18 +4,24 @@
class Options
def initialize(args = {})
build(args)
end
+ # url safe rendering of options for the url
+ #
+ # @return [String] url options
def opts
if @opts.empty?
''
else
"?#{@opts.join('&')}"
end
end
+ # Add or update url options
+ #
+ # @return [Options] self
def build(args = {})
@opts ||= []
args.each do |(key, value)|
remove(key)
@@ -23,33 +29,47 @@
end
self
end
+ # Fetch the `key=value`
+ #
+ # @param [Symbol, String] key of the key/value pair to fetch
+ # @return [String]
def fetch(key)
@opts.each do |item|
return item if key.to_s == split.call(item).first
end
raise KeyError, "key not found #{key}" unless block_given?
yield
end
+ # Fetch and remove `key=value`. Modifies `Options`.
+ #
+ # @param [Symbol, String] key of the key/value pair to fetch
+ # @return [String]
def fetch!(key, &block)
result = fetch(key, &block)
remove(key)
result
end
+ # Execute a block of code and restore original `Options` state afterwards
+ # @yield [Options]
def immutable
old = @opts
result = yield self
@opts = old
result
end
+ # Remove key/value from options via key
+ #
+ # @param key [Symbol, String] key to look up
+ # @return [String, nil] returns a `String` if key found, `nil` otherwise.
def remove(key)
return_value = nil
@opts = @opts.delete_if do |item|
head, tail = split.call item
@@ -58,27 +78,36 @@
end
return_value
end
+ # this purges all options
+ #
+ # @return [Options] self
def reset!
@opts = []
self
end
+ # Add the values of one `Options` into another
+ #
+ # @param other [Options] instance of `Options`
+ # @return [Options]
def +(other)
raise TypeError, "Options type expected, #{other.class} given" unless other.is_a? Options
update other.instance_variable_get(:@opts)
self
end
+ # (see #opts)
def to_s
opts
end
+ # @return [Hash] hash of the `Options`
def to_h
@opts.map(&split).to_h
end
private