Class: WirisPlugin::StringParser

Inherits:
Object
  • Object
show all
Includes:
Wiris
Defined in:
lib/com/wiris/util/json/StringParser.rb

Direct Known Subclasses

JSon

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ StringParser

Returns a new instance of StringParser.



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# File 'lib/com/wiris/util/json/StringParser.rb', line 11

def initialize()
  super()
end

Instance Attribute Details

#c ⇒ Object

Returns the value of attribute c.



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# File 'lib/com/wiris/util/json/StringParser.rb', line 9

def c
  @c
end

#i ⇒ Object

Returns the value of attribute i.



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# File 'lib/com/wiris/util/json/StringParser.rb', line 7

def i
  @i
end

#n ⇒ Object

Returns the value of attribute n.



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# File 'lib/com/wiris/util/json/StringParser.rb', line 8

def n
  @n
end

#str ⇒ Object

Returns the value of attribute str.



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# File 'lib/com/wiris/util/json/StringParser.rb', line 10

def str
  @str
end

Class Method Details

.isBlank(c) ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 39

def self.isBlank(c)
  return ((((c==32)||(c==10))||(c==13))||(c==9))||(c==160)
end

Instance Method Details

#getPositionRepresentation ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 42

def getPositionRepresentation()
  i0 = WInteger::min(@i,@n)
  s0 = WInteger::max(0,@i-20)
  e0 = WInteger::min(@n,@i+20)
  return (("..."+Std::substr(@str,s0,i0-s0).to_s)+" >>> . <<<")+Std::substr(@str,i0,e0).to_s
end

#init(str) ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 14

def init(str)
  @str = str
  @i = 0
  @n = str::length()
  nextToken()
end

#isHexDigit(c) ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 48

def isHexDigit(c)
  if (c>=48)&&(c<=58)
    return true
  end
  if (c>=97)&&(c<=102)
    return true
  end
  if (c>=65)&&(c<=70)
    return true
  end
  return false
end

#nextSafeToken ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 31

def nextSafeToken()
  if @i<@n
    @c = Utf8::charCodeAt(Std::substr(@str,@i),0)
    @i+=(Utf8::uchr(@c))::length()
  else 
    @c = -1
  end
end

#nextToken ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 25

def nextToken()
  if @c==-1
    raise Exception,"End of string"
  end
  nextSafeToken()
end

#skipBlanks ⇒ Object 



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# File 'lib/com/wiris/util/json/StringParser.rb', line 20

def skipBlanks()
  while (@i<@n)&&self.class.isBlank(@c)
    nextToken()
  end
end