| 
 | 
 | ||||||||||||||||
Break a string into a sequence of space separated words.
| Args (string& line) | Args | 
| bool  get_next (string& word) | get_next | 
Parameters:
| word | if a word is available it is placed here. | 
Returns: true if a word has been returned.
| void  push_back () | push_back | 
| const string&  original_line () | original_line | 
[const]