order_tac: prevent potential bug, improve perf and tracing
- We need to be careful when the order operators contain schematic variables, e.g. <= = ccw' ?p.
syntax: glob
*~
*.class
*.jar
*.marks
*.orig
*.rej
.DS_Store
.swp
syntax: regexp
^contrib
^heaps/
^browser_info/
^doc/.*\.pdf
^src/Tools/VSCode/out/
^src/Tools/VSCode/extension/node_modules/
^Admin/jenkins/ci-extras/target/