On 14/06/2019 11:56, Carsten Bormann wrote: > Now the main deployability problem with W3C XSD regexes is that they added > some functionality that is sorely missing in other dialects, such as > character class subtraction, so it is more than an hour of work to write a > converter from XSD regexes to you favorite flavor. Maybe we should encourage > some open source software in this space…
Having gone through the path of: - just throw it in java.util.regex.Pattern, with ^$ wrapped - oh yeah, that does not work for complex patterns - oh wait, character class references are different - oh wait, character groups are different ... I decided to take this exact approach here: https://git.opendaylight.org/gerrit/73875 . The idea is to contribute the ANTLR grammar to https://github.com/antlr/grammars-v4/ so that anybody working with a language supported by ANTLR can get some head start. This work low priority for me, though, as the current set of hacks work well enough and a complete solution requires Java 9 anyway -- so anyone is free to pick it up... Regards, Robert
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