From fc6243a6a6ef4fa1a241169342ad786dd148e3c7 Mon Sep 17 00:00:00 2001 From: duerst Date: Sun, 25 Nov 2018 10:12:45 +0000 Subject: [PATCH] deal with ONIGENC_CASE_IS_TITLECASE flag on lowercase characters In the function onigenc_unicode_case_map() in enc/unicode.c, deal with the case that the ONIGENC_CASE_IS_TITLECASE flag is set on lowercase characters. This is in preparation for Georgian Mtavruli, which are uppercase but not titlecase, in Unicode 11.0.0. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@65971 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- enc/unicode.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/enc/unicode.c b/enc/unicode.c index 2c0d91dfea..c49d2e5ddb 100644 --- a/enc/unicode.c +++ b/enc/unicode.c @@ -772,10 +772,15 @@ SpecialsCopy: } } } - else if ((folded = onigenc_unicode_unfold1_lookup(code)) != 0 /* data about character found in CaseUnfold_11_Table */ - && flags & OnigCaseFoldFlags(folded->n)) { /* needs and data availability match */ - MODIFIED; - code = folded->code[(flags & OnigCaseFoldFlags(folded->n) & ONIGENC_CASE_TITLECASE) ? 1 : 0]; + else if ((folded = onigenc_unicode_unfold1_lookup(code)) != 0) { /* data about character found in CaseUnfold_11_Table */ + if ((flags & ONIGENC_CASE_TITLECASE) /* Titlecase needed, */ + && (OnigCaseFoldFlags(folded->n) & ONIGENC_CASE_IS_TITLECASE)) { /* but already Titlecase */ + /* already Titlecase, no changes needed */ + } + else if (flags & OnigCaseFoldFlags(folded->n)) { /* needs and data availability match */ + MODIFIED; + code = folded->code[(flags & OnigCaseFoldFlags(folded->n) & ONIGENC_CASE_TITLECASE) ? 1 : 0]; + } } } to += ONIGENC_CODE_TO_MBC(enc, code, to);