Class: Malt::Engines::Erb

Inherits:
Abstract show all
Defined in:
lib/malt/engines/erb.rb

Overview

ERB template implementation.

http://www.ruby-doc.org/stdlib/libdoc/erb/rdoc/classes/ERB.html

ERB templates accept two options. safe sets the safe mode for rendering the template and trim is a weird string that controls a few rendering options –it can be ‘%’ and/or ‘>’ or ‘<>’.

Instance Attribute Summary

Attributes inherited from Abstract

#settings

Instance Method Summary collapse

Methods inherited from Abstract

#cache?, default, #initialize, register

Constructor Details

This class inherits a constructor from Malt::Engines::Abstract

Instance Method Details

#compile(params = {}) ⇒ Object

Compile ERB template into Ruby source code.



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# File 'lib/malt/engines/erb.rb', line 41

def compile(params={})
  file = params[:file]
  if cache?
    @source[file] ||= intermediate(params).src
  else
    intermediate(params).src
  end
end

#intermediate(params = {}) ⇒ Object

Returns instance of underlying ::ERB class.



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# File 'lib/malt/engines/erb.rb', line 51

def intermediate(params={})
  text = params[:text]
  file = params[:file]

  opts = engine_options(params)
  safe = opts[:safe]
  trim = opts[:trim]

  if cache?
    @cache[file] ||= ::ERB.new(text, safe, trim)
  else
    ::ERB.new(text, safe, trim)
  end
end

#render(params = {}, &yld) ⇒ Object

Render ERB template.

The params can be:

  • :text - text of erb document

  • :file - file name where text was read (or nil)

  • :data - data source for template interpolation

  • :safe -

  • :trim -

Returns a String.



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# File 'lib/malt/engines/erb.rb', line 27

def render(params={}, &yld)
  text = params[:text]
  file = params[:file]
  data = params[:data]
  data = make_binding(data, &yld)
  if settings[:precompile] == false
    intermediate(params).result(data)
  else
    ruby = compile(params)
    eval(ruby, data, file)
  end
end