module FormatEngine::AttrFormatter
This module adds the attr_formatter extension to a class.
Public Instance Methods
attr_formatter(method, library)
click to toggle source
Define a formatter for instances of the current class.
Parameters
-
method - A symbol used to name the formatting method created by this method.
-
library - A hash of formatting rules that define the formatting capabilities supported by this formatter.
Meta-effects
-
Creates a method (named after the symbol in method) that formats the instance of the class. The created method takes one parameter:
Meta-method Parameters
-
spec_str - A format specification string with %x etc qualifiers.
Meta-method Returns
-
A formatted string
Returns
-
The format engine used by this method.
# File lib/format_engine/attr_formatter.rb, line 20 def attr_formatter(method, library) engine = Engine.new(library) #Create an instance method to do the formatting. define_method(method) do |spec_str| engine.do_format(self, spec_str) end engine end