class Stringento::Template

This is the main rendering engine for the library. It connects together the notions of: parsing, value resolution, and value formatting in a consumable way.

Constants

TOKEN_REGULAR_EXPRESSION

Attributes

value[R]

Public Class Methods

new(value) click to toggle source
# File lib/stringento/template.rb, line 20
def initialize(value)
  @value = value.to_s
end

Public Instance Methods

evaluate(input, resolver: Resolver.new, formatter: Formatter.new) click to toggle source
# File lib/stringento/template.rb, line 30
def evaluate(input, resolver: Resolver.new, formatter: Formatter.new)
  placeholders.inject(value) do |output, placeholder|
    resolved_value = (resolver || default_resolver).resolve(placeholder.name, input)

    formatted_value = (formatter || default_formatter).formatter(
      placeholder.formatter,
      resolved_value,
      placeholder.arg
    )

    output.gsub("{#{placeholder.value}}", formatted_value)
  end
end
placeholders() click to toggle source
# File lib/stringento/template.rb, line 24
def placeholders
  @placeholders ||= value.scan(TOKEN_REGULAR_EXPRESSION)
                         .flatten
                         .map { |str| Placeholder.new(str) }
end