GeezerVison

AI review

I found no new problems. With this change, #line directives are no longer reported as misra-c2012-20.13, and I checked all the ways of spelling the directive that I tried. A malformed directive such as #lines 3 is still reported. The PR still doesn't add the regression test that was asked for in comments.md (#line 1947 in addons/test/misra/misra-test.c). That has already been raised, so I'm not repeating it as a separate comment.

Testing

• I built cppcheck in pr/ with make -j8 cppcheck.
• I wrote scratch/t.c with several spellings of the directive:

  #line 10
  # line 20 "x.c"
  #	line 30
  #line	40
  #  line 50
  #lines 3
  int x;

  I ran cppcheck --dump -q t.c and then python3 misra.py t.c.dump with both the PR's and the base's misra.py.
  • PR: 20.13 is reported only for #lines 3 (x.c:50), which is correct.
  • Base: 20.13 is reported for all 6 directives.
  • simplecpp turns tabs into single spaces in the directive string in the dump, so the space-only regex in misra_20_13 handles those cases correctly.
• Existing MISRA verify test: I ran cppcheck --dump -DDUMMY --suppress=uninitvar --inline-suppr misra/misra-test.c --std=c89 --platform=unix64 followed by misra.py -verify misra/misra-test.c.dump. It reported no Not expected or Not detected lines.
• pytest: python3 -m pytest addons/test/misra_test.py stopped with a collection error before running any tests, so that suite was not run. I did not look into the cause.

Automated review of d4aa765 by Claude. The pull request was built and tested locally.