> but consider that zshoptions(1) documents ERR_EXIT while bash(1) lists errexit. i never know which to search for, and i end up mixing various spellings in zsh code. now shell options are a tiny slice of my shell scripts, but doing this for all identifiers? ugh!
It sounds to me like this is a problem with your search tool, if it would search in a style insensitive manner then this wouldn't be a problem, you'd find both.
it would have to ignore underscores as well. does your grep have that functionality bundled under a convenient flag? does your browser's ctrl-f have it for eg. github?
It doesn't. But it should, just because the limitation is the tooling doesn't mean we should give up on this. Instead we should assume that the tooling will evolve. Even if the language is not style insensitive, this kind of search is still useful since you often are not sure what convention was used.
It sounds to me like this is a problem with your search tool, if it would search in a style insensitive manner then this wouldn't be a problem, you'd find both.