Module: Xqsr3::StringUtilities::ToSymbol::ToSymbol_Helper_

Defined in:
lib/xqsr3/string_utilities/to_symbol.rb

Overview

:nodoc:

Defined Under Namespace

Modules: Constants

Class Method Summary collapse

Class Method Details

.string_to_symbol_with_options_(s, options) ⇒ Object 



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# File 'lib/xqsr3/string_utilities/to_symbol.rb', line 70

def self.string_to_symbol_with_options_ s, options

	case	s
	when	::String
		;
	else

		if s.respond_to? :to_str

			s = s.to_str
		else

			raise TypeError, "string argument must be of type #{::String} or a type that will respond to to_str"
		end
	end

	case	options
	when	::Hash
		;
	else

		raise TypeError, "options must be of type #{::Hash}, #{options.class} given"
	end

	return nil if s.empty?

	transform_characters = options[:transform_characters] || []

	s.chars.map.with_index do |c, index|

		if 0 != index && Constants::SymbolCharactersN.include?(c)

			c
		elsif 0 == index && Constants::SymbolCharacters0.include?(c)

			c
		else

			case	c
			when	'-'

				return nil if options[:reject_hyphens]
			when	' '

				return nil if options[:reject_spaces] || options[:reject_whitespace]
			when	?\t

				return nil if options[:reject_tabs] || options[:reject_whitespace]
			else

				return nil unless transform_characters.include? c
			end

			'_'
		end
	end.join('').to_sym
end