util: allow wildcards in NODE_DEBUG variable

[targos]

Fixes: #17605

Still needs documentation change. I'm opening this for discussion.

Checklist

• make -j4 test (UNIX), or vcbuild test (Windows) passes
• tests and/or benchmarks are included
• documentation is changed or added
• commit message follows commit guidelines

Affected core subsystem(s)

util

[bnoordhuis]

Why not simply allow a regular expression? More flexible and you don't have to write an ad hoc parser for it.

[targos]

Why not simply allow a regular expression?

That would be fine for me too.

[starkwang]

Why not simply allow a regular expression?

Importing the usage of regular expression may add some complexity and logic confilcts. For example, what will happen if some of section names are contradictory?

--NODE_DEBUG=fs,/^((?!fs).)*$/

The second regular expression matches the string not containing "fs", which is contradictory to the first argument.

[bnoordhuis]

Simple solution: don't write a broken regex. Garbage in, garbage out.

[targos]

Closing in favor of #17609