> root: letter* EOF; > > No exceptions in C so that top rule can only set flags.
That change to the grammar works great, thanks! For reference, what would I want to look at if I wanted to deduce what portion of the input data the parser had consumed? > Maybe, but as free is a function in every C runtime that I know of, > #defining it in a system header file would break a lot more than the > ANTLR runtime. Which system are you thinking of that #defines free? The > trade off is the use of an intuitive method name vs something like > 'release' or 'close'. It's definitely a rarity, and something that you have to be very careful about, but many performance-sensitive codebases do ugly/sneaky things to hijack control of memory allocations throughout the system. I know of at least one high-profile commercial game engine that #defines free to be something else, and the MySQL SDK does this as well. I understand the argument for intuitive names, but wouldn't something like freeObject be equally intuitive, and less likely to collide? > The docs at: http://antlr.org/api/C/index.html document > displayRecognitionError which, just like in Java, is what you must > override to implement your own error display. Ok, thanks. I had noticed displayRecognitionError, but wanted to make sure there wasn't some other error-handling mechanism that I needed to worry about as well. I think it would be helpful if there were a brief mention of this function on the front page of the C API - something as simple as "If you want to hook a custom error handler, override <link>displayRecognitionError</link>." (There is no instance of the string "error" on that main page, which was the first thing I tried searching for...) (Also, as an aisde, the link to "displayRecognitionError" on http://antlr.org/api/C/antlr3exception_8h.html appears broken.) > It is download rather than downloads. From hudson just click on the > project. The first thing that comes up is a list of source code > artifacts that you can download??? > > http://antlr.org/hudson/job/ANTLR%20C%20Runtime/ http://antlr.org/download looks very useful! Is there a link to this page from the main ANTLR webpage? Most download links seem to point to http://antlr.org/download.html , which is different... For the C Runtime, yes, it's pretty easy to find the download in Hudson, but I didn't know where to go in Hudson to get the specific file you mentioned in the other email ( antlr-master-3.1.4-SNAPSHOT-completejar.jar ) - it's not 100% clear which Hudson job it would belong to (probably ANTLR_Tool, though), and there don't appear to be any downloadable artifacts at http://antlr.org/hudson/job/ANTLR_Tool/ Thanks for your response, it was very helpful! Michael 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/il-antlr-interest?hl=en -~----------~----~----~----~------~----~------~--~---
