The analysis can take a lot of memory and you may just need more stack space, but it could also be your grammar construction. Lexers especially can use a lot of memory to analyse, especially if you specify huge sets of 'valid' characters'. I'll look at it if you send it to me.
jim > -----Original Message----- > From: antlr-interest-boun...@antlr.org [mailto:antlr-interest- > boun...@antlr.org] On Behalf Of Marcin Rzeznicki > Sent: Sunday, December 13, 2009 8:26 AM > To: antlr-interest@antlr.org > Subject: [antlr-interest] Problems with memory consumption when > generating parsers > > Hi to all, > I am experiencing some problems with excessive memory usage when > generating my parser. I allocated 128MB of heap memory to ANTLRWorks > and it cannot complete generation of parser for Java-like expressions. > I suspect this is rater bad sign but I am not sure whether I need, at > this point, to just allocate more memory and get over the issue or > start worrying. How do you think? Also, how can I check out which > parts of the grammar cause this? Are there any techniques which you > can recommend? I could post the grammar but I think it is too big for > the mailing list - but if someone would like to take a look then I'll > surely post it. > -- > Greetings > Marcin Rzeźnicki > > 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.
