Module: Erubis::PrefixedLineEnhancer

Included in:
PercentLineEnhancer, PrefixedLineEruby
Defined in:
lib/erubis/enhancer.rb

Overview

regards lines starting with ‘^[ t]*%’ as program code

in addition you can specify prefix character (default ‘%’)

this is language-independent.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.desc ⇒ Object

:nodoc:



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# File 'lib/erubis/enhancer.rb', line 445

def self.desc   # :nodoc:
  "regard lines matched to '^[ \t]*%' as program code"
end

Instance Method Details

#add_text(src, text) ⇒ Object 



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# File 'lib/erubis/enhancer.rb', line 454

def add_text(src, text)
  unless @prefixrexp
    @prefixchar ||= '%'
    @prefixrexp = Regexp.compile("^([ \\t]*)\\#{@prefixchar}(.*?\\r?\\n)")
  end
  pos = 0
  text2 = ''
  text.scan(@prefixrexp) do
    space = $1
    line  = $2
    space, line = '', $1 unless $2
    match = Regexp.last_match
    len   = match.begin(0) - pos
    str   = text[pos, len]
    pos   = match.end(0)
    if text2.empty?
      text2 = str
    else
      text2 << str
    end
    if line[0, 1] == @prefixchar
      text2 << space << line
    else
      super(src, text2)
      text2 = ''
      add_stmt(src, space + line)
    end
  end
  #rest = pos == 0 ? text : $'             # ruby1.8
  rest = pos == 0 ? text : text[pos..-1]   # ruby1.9
  unless text2.empty?
    text2 << rest if rest
    rest = text2
  end
  super(src, rest)
end

#init_generator(properties = {}) ⇒ Object 



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# File 'lib/erubis/enhancer.rb', line 449

def init_generator(properties={})
  super
  @prefixchar = properties[:prefixchar]
end