tree 83bed92a3113bdb78259ef25159f2d8774ca16fe
parent 89b86e059f900438f7ad9db583aed900b7d60832
author dlr <dlr@google.com> 1593192964 -0700
committer Copybara-Service <copybara-worker@google.com> 1593193060 -0700

Avoid possibility of the default Locale interfering with lower-casing input.

Instead of String.toLowerCase(), leverage Guava's Ascii.toLowerCase().

Also, factor out common text representations of enabled/disabled values for
boolean and tri-state flags, and simplify corresponding implementations.

https://help.semmle.com/wiki/pages/viewpage.action?pageId=29393598
https://www.w3.org/International/wiki/Case_folding

RELNOTES: none
PiperOrigin-RevId: 318499276