func doCenter(_data)
  fvar(s,w,c,q)
  
  s = StrIn
  c = (isdef(FillChar)?(', '+Arg2):'')
  w = Width
  
  q = '('+StrIn+').center('+w+c+')'
  
  if (linked(Result))
    println(res + ' = ' + q)
    event(onResult, res)
  else
    event(onResult, q)
  end
end

func doLJust(_data)
  fvar(s,w,c,q)
  
  s = StrIn
  c = (isdef(FillChar)?(', '+Arg2):'')
  w = Width
  
  q = '('+StrIn+').ljust('+w+c+')'
  
  if (linked(Result))
    println(res + ' = ' + q)
    event(onResult, res)
  else
    event(onResult, q)
  end
end

func doRJust(_data)
  fvar(s,w,c,q)
  
  s = StrIn
  c = (isdef(FillChar)?(', '+Arg2):'')
  w = Width
  
  q = '('+StrIn+').rjust('+w+c+')'
  
  if (linked(Result))
    println(res + ' = ' + q)
    event(onResult, res)
  else
    event(onResult, q)
  end
end

func doStartsWith(_data)
  fvar(s,p,b,e,q,ee,ss)
   
  s = StrIn
  p = SubStr
  b = (isdef(Start)?(', '+Start):'')
  e = (isdef(End)?(', '+End):'')
  
  q = '('+s+').startswith('+p+b+e+')'
  
  if (linked(Result))
    println(res + ' = ' + q)
    event(onResult, res)
  else
    event(onResult, q)
  end
end
                                             
func doEndsWith(_data)
  fvar(q)
    
  q = '(' && StrIn && ').endswith(' && SubStr && (isndef(Start)?(', '&&Start):'') && (isndef(End)?(', '&&End):'') && ')'
  
  if (linked(Result))
    println(res, ' = ', q)
    event(onResult, res)
  else
    event(onResult, q)
  end
end

func doExpandTabs(_data)
  fvar(s,w,q)
    
  s = StrIn
  w = (isdef(TabWidth)?(', '+TabWidth):'')
  q = '('+StrIn+').expandtabs('+w+')'
  
  if (linked(Result))
    println(res + ' = ' + q)
    event(onResult, res)
  else
    event(onResult, q)
  end
end

func doStrMult(_data)
  fvar(s,w,q)
  s = StrIn
  w = Mult
  q = '(' && s && '*' && w && ')'
  
  if (linked(Result))
    println(res + ' = ' + q)
    event(onResult, res)
  else
    event(onResult, q)
  end  
end

func Resut(_data)
  return(res)
end