Add javadoc comments.
Add javadoc comments.

Signed-off-by: Raymond Audet <281aa2b19aab01efe2941a7da076ec0616a9b992@gmail.com>
Signed-off-by: Etienne M. Gagnon <bf06ec0eb40152cd863534753d026b021022c851@j-meg.com>

SableCC/sablecc,Herve-M/sablecc,SableCC/sablecc,Herve-M/sablecc,Herve-M/sablecc,Herve-M/sablecc,Herve-M/sablecc,SableCC/sablecc,SableCC/sablecc,SableCC/sablecc