class Erubi::CaptureEndEngine

An engine class that supports capturing blocks via the <%|= and <%|== tags, explicitly ending the captures using <%| end %> blocks.

Public Class Methods

new(input, properties={}) click to toggle source

Initializes the engine. Accepts the same arguments as ::Erubi::Engine, and these additional options:

:escape_capture

Whether to make <%|= escape by default, and <%|== not escape by default, defaults to the same value as :escape.

Calls superclass method Erubi::Engine::new
   # File lib/erubi/capture_end.rb
13 def initialize(input, properties={})
14   properties = Hash[properties]
15   escape = properties.fetch(:escape){properties.fetch(:escape_html, false)}
16   @escape_capture = properties.fetch(:escape_capture, escape)
17   @bufval = properties[:bufval] ||= 'String.new'
18   @bufstack = '__erubi_stack'
19   properties[:regexp] ||= /<%(\|?={1,2}|-|\#|%|\|)?(.*?)([-=])?%>([ \t]*\r?\n)?/m
20   super
21 end

Private Instance Methods

handle(indicator, code, tailch, rspace, lspace) click to toggle source

Handle the <%|= and <%|== tags

Calls superclass method Erubi::Engine#handle
   # File lib/erubi/capture_end.rb
26 def handle(indicator, code, tailch, rspace, lspace)
27   case indicator
28   when '|=', '|=='
29     rspace = nil if tailch && !tailch.empty?
30     add_text(lspace) if lspace
31     escape_capture = !((indicator == '|=') ^ @escape_capture)
32     src << "begin; (#{@bufstack} ||= []) << #{@bufvar}; #{@bufvar} = #{@bufval}; #{@bufstack}.last << #{@escapefunc if escape_capture}((" << code
33     add_text(rspace) if rspace
34   when '|'
35     rspace = nil if tailch && !tailch.empty?
36     add_text(lspace) if lspace
37     src << code << ")).to_s; ensure; #{@bufvar} = #{@bufstack}.pop; end;"
38     add_text(rspace) if rspace
39   else
40     super
41   end
42 end