https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=12617
--- Comment #22 from David Cook <dc...@prosentient.com.au> --- Apologies if people find this uninteresting. Keycloak's LowerCasePasswordPolicyProvider.java file uses Java's Character.isLowerCase() function... Looking at OpenJDK 8... http://hg.openjdk.java.net/jdk8u/jdk8u/jdk/file/dc4322602480/src/share/classes/java/lang/Character.java#l5451 That appears to use Unicode code points (as integers)... With CharacterData, it does some bit math to use some generated character class lookups it seems... https://github.com/openjdk/jdk/blob/master/src/java.base/share/classes/java/lang/CharacterData.java It's a rabbit hole, but Java really does seem to be king when it comes to working with character data... Going back to Keycloak, SpecialCharsPasswordPolicyProvider.java seems to indicate that anything that doesn't return true for Character.isLetterOrDigit is a "special character". According to Java, "Not all letters have case. Many characters are letters but are neither uppercase nor lowercase nor titlecase". Interesting. Apparently that's in regards to the "Lo" "Other Letter" Unicode category (https://www.compart.com/en/unicode/category/Lo) with Arabic being one of the most obvious examples. And according to Java, "isLetter" is only uppercase letters, lowercase letters, title case letters, modifier letters, and other letters with "modifier letters" being the "Lm" category (https://www.compart.com/en/unicode/category/Lm). Java has an isIdeographic function for checking CJKV characters, but that seems to rely on a generated code point lookup table (although I haven't fully explored that path). -- You are receiving this mail because: You are watching all bug changes. _______________________________________________ Koha-bugs mailing list Koha-bugs@lists.koha-community.org https://lists.koha-community.org/cgi-bin/mailman/listinfo/koha-bugs website : http://www.koha-community.org/ git : http://git.koha-community.org/ bugs : http://bugs.koha-community.org/
