Source Changes

Hi.
i'm trying to make rpg source changes (batch mode) in Java.
i'm working with Java only for 3 months, i worked with Cobol for the last 10
years, so it's a bit difficult to shift my mind to OO.
The (dis)/advantages between abstract classes and interfaces are not very
clear for me, or when one/other should apply better.
I am learning more of OO and Java.

today i receveid from a subsc. list information about a parser for Java -
Javacc, developped initially by Sun, now maintained by MetaMata, maybe this
will be a help for me.
I have to parse sources first, do some changes and put them back.
The parse structure is never right for me.
I thought that maybe there's work already done to do something similar, a
tool ...
Can anybody give me a hint ?

Thanks in advance
(Sorry if i'm asking to much)

Rui Duarte
Portugal




Rui Jorge de Sousa da Cunha Duarte
mailto:rduarte@i2s.pt

Departamento de Projectos Especiais
I2S Informática - Sistemas e Serviços, SA
Telf.:  228340400   - Fax: 228340495
http://www.i2s.pt

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