Sha256: a76d8bb6773d9e28d09f91d6512db385b6442028725b02e201cee9092f4e4b69
Contents?: true
Size: 1.52 KB
Versions: 9
Compression:
Stored size: 1.52 KB
Contents
module Lita
# A simple wrapper around ERB to render text from files or strings.
# @since 4.2.0
class Template
# A clean room object to use as the binding for ERB rendering.
# @api private
class TemplateEvaluationContext
# Returns the evaluation context's binding.
# @return [Binding] The binding.
def __get_binding
binding
end
end
class << self
# Initializes a new Template with the contents of the file at the given path.
# @param path [String] The path to the file to use as the template content.
# @return Template
def from_file(path)
new(File.read(path).chomp)
end
end
# @param source [String] A string to use as the template's content.
def initialize(source)
@erb = ERB.new(source, $SAFE, "<>")
end
# Render the template with the provided variables.
# @param variables [Hash] A collection of variables for interpolation. Each key-value pair will
# make the value available inside the template as an instance variable with the key as its
# name.
def render(variables = {})
erb.result(context_binding(variables))
end
private
# Create an empty object to use as the ERB context and set any provided variables in it.
def context_binding(variables)
context = TemplateEvaluationContext.new
variables.each do |k, v|
context.instance_variable_set("@#{k}", v)
end
context.__get_binding
end
# The underlying ERB object.
attr_reader :erb
end
end
Version data entries
9 entries across 9 versions & 1 rubygems