I need to exclude any file that has name BUILD.BAZEL or WORKSPACE.BAZEL (case sensitive). I cannot use negative lookahead as Go regex does not support negative lookahead. I have this.

I tried without negative lookahead:

(^([^B].*$)|(B([^U].*$|$))|(BU(^I].*$|$))|(BUI([^L].*$|$))|(BUIL([^D].*$|$))|(BUILD([^.].*$|$)))|(^([^W].*$)|(W([^O].*$|$))|(WO(^R].*$|$))|(WOR([^K].*$|$))|(WORK([^S].*$|$))|(WORKS([^P].*$|$))|(WORKSP([^A].*$|$))|(WORKSPA([^C].*$|$))|(WORKSPAC([^E].*$|$))|(WORKSPACE([^.].*$|$))).*(?:.bazel)

The above excludes BUILD.BAZEL successfully but does not exclude WORKSPACE.BAZEL.

I break them up, they work fine.

(^([^B].*$)|(B([^U].*$|$))|(BU(^I].*$|$))|(BUI([^L].*$|$))|(BUIL([^D].*$|$))|(BUILD([^.].*$|$)));

(WOR([^K].*$|$))|(WORK([^S].*$|$))|(WORKS([^P].*$|$))|(WORKSP([^A].*$|$))|(WORKSPA([^C].*$|$))|(WORKSPAC([^E].*$|$))|(WORKSPACE([^.].*$|$)))

What am I doing wrong?