Class: Burner::Util::StringTemplate

Inherits:

Object

• Object
• Burner::Util::StringTemplate

Includes:

Singleton

Defined in:

lib/burner/util/string_template.rb

Overview

Can take in a string and an object and use the object for formatting string interpolations using tokens of form: attribute_name. This templating class does not understand nested structures, so input should be a flat object/hash in the form of key-value pairs. A benefit of using Objectable for resolution is that it can understand almost any type of object: Hash, Struct, OpenStruct, custom objects, etc. For more information see underlying libraries:

* Stringento: https://github.com/bluemarblepayroll/stringento
* Objectable: https://github.com/bluemarblepayroll/objectable

Instance Attribute Summary

• #resolver ⇒ Object readonly

  Returns the value of attribute resolver.

Instance Method Summary

• #evaluate(expression, input) ⇒ Object

  For general consumption.

• #initialize ⇒ StringTemplate constructor

  A new instance of StringTemplate.

• #resolve(value, input) ⇒ Object

  For Stringento consumption.

Constructor Details

#initialize ⇒ StringTemplate

Returns a new instance of StringTemplate.

# File 'lib/burner/util/string_template.rb', line 25

def initialize
  @resolver = Objectable.resolver(separator: '')

  freeze
end

Instance Attribute Details

#resolver ⇒ Object (readonly)

Returns the value of attribute resolver.

# File 'lib/burner/util/string_template.rb', line 23

def resolver
  @resolver
end

Instance Method Details

#evaluate(expression, input) ⇒ Object

For general consumption

# File 'lib/burner/util/string_template.rb', line 32

def evaluate(expression, input)
  Stringento.evaluate(expression, input, resolver: self)
end

#resolve(value, input) ⇒ Object

For Stringento consumption

# File 'lib/burner/util/string_template.rb', line 37

def resolve(value, input)
  resolver.get(input, value)
end