Universal code grep
From wikinotes
universal code grep (ucg) is a modern search and search replace tool.
It is similar to ripgrep, but supports PCRE2 (lookahead/lookbehind, multiline, etc).
Documentation
github https://github.com/gvansickle/ucg
Usage
ucg [pattern] [files...] ucg \ -i `# case insensitive match` \ ucg --color 'Foo(?!Bar)' | less -Ri