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Erubis::PI::TinyEruby

Constants

EMBEDDED_PATTERN

Attributes

src[R]

Public Class Methods

new(input=nil, options={}) click to toggle source
    # File lib/erubis/tiny.rb, line 79
79:     def initialize(input=nil, options={})
80:       @escape  = options[:escape] || 'Erubis::XmlHelper.escape_xml'
81:       @src = convert(input) if input
82:     end

Public Instance Methods

convert(input) click to toggle source
     # File lib/erubis/tiny.rb, line 88
 88:     def convert(input)
 89:       src = "_buf = '';"           # preamble
 90:       pos = 0
 91:       input.scan(EMBEDDED_PATTERN) do |lspace, stmt, rspace, indicator, expr|
 92:         match = Regexp.last_match
 93:         len   = match.begin(0) - pos
 94:         text  = input[pos, len]
 95:         pos   = match.end(0)
 96:         #src << " _buf << '" << escape_text(text) << "';"
 97:         text.gsub!(/['\\]/, '\\\&')
 98:         src << " _buf << '" << text << "';" unless text.empty?
 99:         if stmt                # <?rb ... ?>
100:           if lspace && rspace
101:             src << "#{lspace}#{stmt}#{rspace}"
102:           else
103:             src << " _buf << '" << lspace << "';" if lspace
104:             src << stmt << ";"
105:             src << " _buf << '" << rspace << "';" if rspace
106:           end
107:         else                       # ${...}, $!{...}
108:           if !indicator
109:             src << " _buf << " << @escape << "(" << expr << ");"
110:           elsif indicator == '!'
111:             src << " _buf << (" << expr << ").to_s;"
112:           end
113:         end
114:       end
115:       #rest = $' || input                        # ruby1.8
116:       rest = pos == 0 ? input : input[pos..1]   # ruby1.9
117:       #src << " _buf << '" << escape_text(rest) << "';"
118:       rest.gsub!(/['\\]/, '\\\&')
119:       src << " _buf << '" << rest << "';" unless rest.empty?
120:       src << "\n_buf.to_s\n"       # postamble
121:       return src
122:     end
evaluate(_context=Object.new) click to toggle source
     # File lib/erubis/tiny.rb, line 132
132:     def evaluate(_context=Object.new)
133:       if _context.is_a?(Hash)
134:         _obj = Object.new
135:         _context.each do |k, v| _obj.instance_variable_set("@#{k}", v) end
136:         _context = _obj
137:       end
138:       _context.instance_eval @src
139:     end
result(_binding=TOPLEVEL_BINDING) click to toggle source

def escape_text(text)

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

end

     # File lib/erubis/tiny.rb, line 128
128:     def result(_binding=TOPLEVEL_BINDING)
129:       eval @src, _binding
130:     end

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