If this is fixed, how would $regml and $regmlex behave if the regex is capturing a string that is more than 8292 characters? Would they chop at 8292 or would they return a line too long error?
String length checking is performed in all of the regex routines/identifers/etc. in numerous places. If evaluation reaches the stage of storing results in $regml(), they would be truncated. It may be that different routines will report a line too long error and halt the processing before it reaches that stage. Substitution would also be a problem. There would also be issues with calling commands to evaluate parameters during regex evaluation, where it would be necessary to truncate parameters since script commands and identifiers cannot exceed the maximum string length. And so on. So, while it might be possible to extend regex in some ways to handle matching against longer text, some regex features, such as alias call evaluation of parameters, will never be able to handle it.
