On 8/27/25 10:36 AM, Chet Ramey wrote: > On 8/27/25 10:29 AM, Zachary Santer wrote: >> On Wed, Aug 27, 2025 at 10:19 AM Chet Ramey <chet.ra...@case.edu> wrote: >>> >>> On 8/26/25 6:40 PM, Zachary Santer wrote: >>>> >>>> Not that I've ever had a use >>>> for a case-toggling word expansion, but there's no alternative that's >>>> documented, aside from calling an external command. >>> >>> You've never found a use for one, but bash should provide one because >>> there's no documented alternative? >> >> Bash already provides one. You're just leaving it undocumented so >> you're more free to get rid of it in the future?
> I'm leaving it undocumented to discourage its use, yes. One thing I've > discovered is that you can never remove a feature (e.g. $[expr]). > Is it useful enough to add a parameter transformation for it? What should > bash use for the operator? >> Did it originate in >> another shell? > No. I'm of the opinion that if there is a supported feature with no plans for deprecation or removal, it should be documented. Even if it's not widely used, it's still supported with (as you said) no plans for removal.
