Issue #21870 has been updated by jneen (Jeanine Adkisson). I see! So they do have some overlap. Is it really correct to warn here though? "Fixing" the warning would require falling back to manual unicode ranges. ---------------------------------------- Bug #21870: Regexp: Warnings when using multiple non-overlapping \p{...} classes https://bugs.ruby-lang.org/issues/21870#change-116316 * Author: jneen (Jeanine Adkisson) * Status: Open * ruby -v: 4.0.1 * Backport: 3.2: UNKNOWN, 3.3: UNKNOWN, 3.4: UNKNOWN, 4.0: UNKNOWN ---------------------------------------- ```ruby $VERBOSE = true # warning: character class has duplicated range: /[\p{Word}\p{S}]/ regex = /[\p{Word}\p{S}]/ ``` As far as I can tell this is a perfectly valid and non-overlapping set of unicode properties, but I am still being spammed with warnings. Using `/(\p{Word}|\p{S})/` is kind of a workaround, but it is slower. -- https://bugs.ruby-lang.org/