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PR11334 progress update


PR11334 Status as of 2012-10-19
===============================

For prior context, see http://sourceware.org/bugzilla/show_bug.cgi?id=11334.

Work on existing re2c code
==========================

Partially complete, will finish on Monday
[~] RegExp parser (needed because re2c doesn't support parsing 'just a regex', its current parser takes a C file peppered with flex-like directives)

Future work
[ ] grouping support
[ ] fill in missing details of POSIX ERE -- e.g. character classes
[ ] communicate proper thanks to the re2c folks
[ ] cleanup, rewrite bits & pieces of the code to be more systemtap'y
[ ] ... in particular, error reporting MUST get taken over by stap code
    [ ] this should be checked by testing against semko/badregex*.stp
[ ] sober discussion on further improvements (e.g. locale support)

Work on test infrastructure
===========================

Done, but needs to be shuffled around a bit before posting
[~] raw data for some more advanced tests

Partially complete, will finish on Monday
[~] test/glibc.tests.1 -- glibc's testsuite
[~] test/glibc.tests.2 -- glibc's ptestsuite, at least the non-BRE parts...
[~] small stub-end test script and Makefile

Future work
[ ] munge advanced tests into palatable format for my infrastructure
[ ] write tests for grouping support
[ ] move testing rig to testsuite/

Work on =~ in SystemTap
=======================

[X] stub implementation -- commit 5db805f
[X] partial script-language testsuite for stub implementation -- commit 975dc78

Future work
[ ] stub implementation with per-session regex table
[ ] proper implementation with per-session regex table
[ ] full script-language testsuite for the proper implementation
[ ] grouping tapset
[ ] documentation
[ ] sober discussion on "pat" vs. /pat/ syntax (again)
[ ] sober discussion on further features (find-replace, split, named regexen)


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