Class: StringScanner

Inherits:
Object show all
Defined in:
lib/rmtools/text/string_scanner.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#last ⇒ Object (readonly)

Returns the value of attribute last.



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# File 'lib/rmtools/text/string_scanner.rb', line 5

def last
  @last
end

Class Method Details

.each(string, *args, &b) ⇒ Object 



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# File 'lib/rmtools/text/string_scanner.rb', line 55

def self.each string, *args, &b
  new string, *args, &b
end

Instance Method Details

#each(re, cbs = nil, &cb) ⇒ Object 



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# File 'lib/rmtools/text/string_scanner.rb', line 7

def each(re, cbs=nil, &cb)
  @last = 0
  res = scan_until re
  if cbs
    if cbs.keys.compact[0].is Fixnum
      while res
        if cb = cbs[matched.ord]
          cb[self]
          @last = pos
          res = !eos? && scan_until(re)
        else break
        end
      end
    else
      while res
        if cb = cbs.find {|pattern, proc| pattern and pattern.in matched}
          # patterns must be as explicit as possible
          cb[1][self]
          @last = pos
          res = !eos? && scan_until(re)
        else break
        end
      end
    end
  else
    while res
        cb[self]
        @last = pos
        res = !eos? && scan_until(re)
    end
  end
  if (cb = cbs[nil]) and !eos?
    cb[tail]
  end
end

#head ⇒ Object 



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# File 'lib/rmtools/text/string_scanner.rb', line 43

def head
  string[@last...pos-matched.size]
end

#hl_next(re) ⇒ Object 



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# File 'lib/rmtools/text/string_scanner.rb', line 51

def hl_next(re)
  (res = scan_until re) && RMTools.hl(string[pos-1000..pos+1000], res)
end

#tail ⇒ Object 



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# File 'lib/rmtools/text/string_scanner.rb', line 47

def tail
  string[pos..-1]
end