Class Erubis::TinyEruby
In: lib/erubis/tiny.rb
Parent: Object
Eruby\n[lib/erubis/engine/eruby.rb\nlib/erubis/helpers/rails_helper.rb] PreprocessingEruby XmlEruby HeaderFooterEruby PrintEnabledEruby StdoutEruby FastEruby\n[lib/erubis/engine/eruby.rb\nlib/erubis/helpers/rails_helper.rb] StringBufferEruby BiPatternEruby InterpolationEruby PercentLineEruby PrintOutSimplifiedEruby NoTextEruby ErboutEruby StringIOEruby ArrayEruby PrintOutEruby SimplifiedEruby EscapedEruby DeleteIndentEruby StdoutSimplifiedEruby NoCodeEruby ArrayBufferEruby PreprocessingEruby OptimizedEruby Engine Ejava Ephp Eperl Ec Ejavascript Escheme EscapedEjava EscapedEphp EscapedEc OptimizedXmlEruby EscapedEperl EscapedEjavascript EscapedEscheme ErubisError NotSupportedError CommandOptionError Enumerable Context StandardError RubyEvaluator Eruby RubyGenerator PI::Engine Ejava Eperl Ec Ejavascript Escheme Ephp JavaGenerator Evaluator Engine PI::Converter Generator PerlGenerator CGenerator JavascriptGenerator SchemeGenerator PhpGenerator Basic::Converter Main Engine TinyEruby TinyEruby lib/erubis/engine/escheme.rb lib/erubis/engine/ec.rb lib/erubis/engine/eperl.rb lib/erubis/engine/eruby.rb lib/erubis/engine/ephp.rb lib/erubis/helpers/rails_helper.rb lib/erubis/preprocessing.rb lib/erubis/error.rb lib/erubis/engine/ejava.rb lib/erubis/engine/ejavascript.rb lib/erubis/context.rb lib/erubis/engine/optimized.rb lib/erubis/main.rb lib/erubis/engine/enhanced.rb lib/erubis/engine.rb lib/erubis/tiny.rb NoCodeEnhancer ArrayBufferEnhancer Generator StringBufferEnhancer OptimizedGenerator SchemeGenerator lib/erubis/engine/escheme.rb lib/erubis/engine/ec.rb lib/erubis/engine/eperl.rb lib/erubis/engine/eruby.rb lib/erubis/engine/ephp.rb lib/erubis/engine/ejava.rb lib/erubis/engine/ejavascript.rb lib/erubis/engine.rb lib/erubis/tiny.rb Converter PI SimplifyEnhancer StdoutEnhancer Converter lib/erubis/helpers/rails_helper.rb TemplateConverter RailsHelper RailsFormHelper Helpers XmlHelper HeaderFooterEnhancer RubyGenerator PhpGenerator CGenerator lib/erubis/engine.rb Converter Basic PreprocessingHelper Evaluator BiPatternEnhancer PrintEnabledEnhancer PerlGenerator JavascriptGenerator PercentLineEnhancer NoTextEnhancer ErboutEnhancer PrintOutEnhancer EscapeEnhancer JavaGenerator DeleteIndentEnhancer StringIOEnhancer ArrayEnhancer RubyEvaluator InterpolationEnhancer Erubis dot/m_23_0.png

tiny and the simplest implementation of eRuby

ex.

  eruby = TinyEruby.new(File.read('example.rhtml'))
  print eruby.src                 # print ruby code
  print eruby.result(binding())   # eval ruby code with Binding object
  print eruby.evalute(context)    # eval ruby code with context object

Methods

convert   evaluate   new   result  

Constants

EMBEDDED_PATTERN = /<%(=+|\#)?(.*?)-?%>/m

Attributes

src  [R] 

Public Class methods

[Source]

    # File lib/erubis/tiny.rb, line 20
20:     def initialize(input=nil)
21:       @src = convert(input) if input
22:     end

Public Instance methods

[Source]

    # File lib/erubis/tiny.rb, line 27
27:     def convert(input)
28:       src = "_buf = '';"           # preamble
29:       pos = 0
30:       input.scan(EMBEDDED_PATTERN) do |indicator, code|
31:         match = Regexp.last_match
32:         len   = match.begin(0) - pos
33:         text  = input[pos, len]
34:         pos   = match.end(0)
35:         #src << " _buf << '" << escape_text(text) << "';"
36:         text.gsub!(/['\\]/, '\\\\\&')
37:         src << " _buf << '" << text << "';" unless text.empty?
38:         if !indicator              # <% %>
39:           src << code << ";"
40:         elsif indicator == '#'     # <%# %>
41:           src << ("\n" * code.count("\n"))
42:         else                       # <%= %>
43:           src << " _buf << (" << code << ").to_s;"
44:         end
45:       end
46:       #rest = $' || input                        # ruby1.8
47:       rest = pos == 0 ? input : input[pos..-1]   # ruby1.9
48:       #src << " _buf << '" << escape_text(rest) << "';"
49:       rest.gsub!(/['\\]/, '\\\\\&')
50:       src << " _buf << '" << rest << "';" unless rest.empty?
51:       src << "\n_buf.to_s\n"       # postamble
52:       return src
53:     end

[Source]

    # File lib/erubis/tiny.rb, line 63
63:     def evaluate(_context=Object.new)
64:       if _context.is_a?(Hash)
65:         _obj = Object.new
66:         _context.each do |k, v| _obj.instance_variable_set("@#{k}", v) end
67:         _context = _obj
68:       end
69:       _context.instance_eval @src
70:     end

def escape_text(text)

  return text.gsub!(/['\\]/, '\\\\\&') || text

end

[Source]

    # File lib/erubis/tiny.rb, line 59
59:     def result(_binding=TOPLEVEL_BINDING)
60:       eval @src, _binding
61:     end

[Validate]