parse_string
  
  Description:
  public void parse_string (
string instructions)
  
 
  
    Parses instructions and appends corresponding nodes to path (call gegl_path_clean first if you want to replace the 
      existing path.
    Parameters:
    
      
        | this | 
        
           a Path 
         | 
      
      
        | instructions | 
        
           a string describing a path. 
         |