Hi, Ron. Glad to say that I'm the maintainer of TinyCobol.
What I'm trying to do here is write a new version of it, using Antlr. In this new version, I want to implement a lot of things that does not exists today, like native GUI and native access to RDBMS in general. Also, I'm going to generate 'executables' for Java JVM and for .Net CIL. Current TinyCobol generates assembly code for 32 bits only, and I think this is a big limitation for it now. But let's go to the real problem... A command in Cobol may or may be not terminated by '.'. All sequence of commands terminated by only one '.' are a block. A sample of this are the commands in the 'then' or the 'else' part of an 'IF' command. In this case, the first '.' found on the end of some command terminates not only the command, but the 'IF' command as a whole. Additionally, a '.' must be the last token between paragraphs. Alias, the command sequence on a paragraph needs only the final '.', if I want. There is no way I could say if a '.' belongs to the preceding command or if it enclosing the current paragraph, except by the fact that, if the following token is a section name or a new paragraph, it quits the current paragraph; else it quits a block. Maybe I'm just missing the way to say that to Antlr. As I've already said, I'm a newbie. Thanks for interest and sorry the poor English. I'm Portuguese native speaker. Nilo - Brazil -----Mensagem original----- De: antlr-interest-boun...@antlr.org [mailto:antlr-interest-boun...@antlr.org] Em nome de Ron Burk Enviada em: segunda-feira, 11 de julho de 2011 19:24 Cc: antlr-interest@antlr.org Assunto: Re: [antlr-interest] RES: COBOL grammar > What else am I missing? Are you certain you mean the '.' at the end of the command to be optional? An initial scan seems to indicate only one optional '.' in the tinyCobol grammar, in procedure declarations. Likewise, an uneducated glance at another COBOL grammar: http://www.cs.vu.nl/grammarware/browsable/cobol/#EBNF seemed to indicate the "." is rarely optional. Or put another way, at the end of a command, what are the precise rules for deciding whether a '.' belongs to the current command or to the enclosing paragraph? If you can state an unambiguous rule for making that decision, you can probably force ANTLR to do it. List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address List: http://www.antlr.org/mailman/listinfo/antlr-interest Unsubscribe: http://www.antlr.org/mailman/options/antlr-interest/your-email-address -- You received this message because you are subscribed to the Google Groups "il-antlr-interest" group. To post to this group, send email to il-antlr-inter...@googlegroups.com. To unsubscribe from this group, send email to il-antlr-interest+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en.
