On Sat, Jul 01, 2006 at 02:27:17PM +0100, David House wrote:
Hi all. I need a decent regex library and JRegex seems the perfect choice: simple API, yet well-featured, as well as PCRE support. I want to use it on a simple project which involves input files a little larger than typical -- between 100KB and 500KB -- but still small enough so as to not present a problem.
However, and I'm fairly sure JRegex is at fault here, my program segfaults on an input of ~230KB. Has anyone used JRegex successfully in this way before? If so, what tactics did you use?
This is due to the fact it tries to build the whole string in memory before running the regex on it. Originally, this limitation was due to the fact the API provided by the regex binding in fptools was insufficient to allow chunking of data properly. now that JRegex uses its own FFI binding, there is no reason this limitation should still exist. I will happily accept any patches fixing this. There was some talk of integrating JRegex into the main tree. It should be noted that there are 2 somewhat independent things included in JRegex, a better FFI binding to posix expressions as well as the PCRE library. and the general framework for providing the =~ and =~~ operators. All that is needed is a smarter FFI binding, or even just using another one that exists like Text.Regex.Lazy. it is straightforward to add the instances needed to use the JRegex fancy syntax. John -- John Meacham - ⑆repetae.net⑆john⑈