The is my monthly report for April on work done covered by my TPF perl core maintenance grant. The main thing I did last month was to fix up Deparse failures. The test suite runner has a switch, t/TEST -deparse which runs each of the 3000 or so test scripts on a round-trip through the deparser before running them as normal. This is a good general test of the deparser, and whether there have been any regressions. I try to run this at least once per year in the lead up to a new release to see what state we're in. Often its just a case of adding a new test script to the ignore file (Porting/deparse-skips.txt), but sometimes things are worse. In this case, there were a couple of minor issues related to the new for my ($x,$y) (...) { ...} syntax, the new 'use builtin' pragma, and the new preserving of boolean types. But the main issue was that custom warning categories were no longer being deparsed. It turned out they historically never were, until as a side-effect of a fix a few releases ago, somewhere between 0 and 3 categories were now being processed. It just so happens that the number of fixed categories in this release was a multiple of 4, leading to no extra (i.e. custom) categories being deparsed. This has now been fixed so that all custom categories will be handled, no matter how many have been registered. Debugging and fixing this led me down a little rabbit hole around the warnings infrastructure - the internal details of which are badly under-documented. As a start towards addressing this, I spent some time refactoring regen/warnings.pl, which is used to automatically generate warnings.h and warnings.pm based on what warning categories are defined. That script had grown into a bit of an unworkable mess. SUMMARY: 0:59 #19664 [doc] perlsub "Constant Functions" section out of date 1:59 #19670 \U and \L in interpolated strings don't actually stack 1:54 check for any performance regressions 19:34 fix Test -deparse failures (esp related to warnings) 10:52 process p5p mailbox 4:15 refactor regen/warnings.pl 1:23 review Coverity scan ------ 40:56 TOTAL (HH::MM) -- 1 - number of times I have needed to use the cap lock key 10000 - number of times I have CCIDENTLY HIT THE CAPS KEY WHEN TYPING 'A'Thread Next