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authorBaptiste Daroussin <bapt@FreeBSD.org>2026-02-14 05:54:08 +0000
committerBaptiste Daroussin <bapt@FreeBSD.org>2026-02-19 09:13:19 +0000
commita51ec1cc5a82d770a37f3c5cfef9ee48cc7eab47 (patch)
treee16b66a72053dee976116095559cbb7464cf52c5
parent9b2cba4a8a690bc6d4ac174cc2f2daddbc43a84d (diff)
tr: fix class handling in unicode world
toupper/tolower logic was only handled for CCLASS_TOUPPER and CCLASS_TOLOWER, add support for CCLASS ([:alpha:]) PR: 219900 MFC After: 1 week (cherry picked from commit 625dc44832cd760be3d7242d8e21a530c7e32bfc)
-rw-r--r--usr.bin/tr/tr.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/usr.bin/tr/tr.c b/usr.bin/tr/tr.c
index d31a51a73542..75b7cd8be7c0 100644
--- a/usr.bin/tr/tr.c
+++ b/usr.bin/tr/tr.c
@@ -242,6 +242,40 @@ main(int argc, char **argv)
break;
} while (s2.state == CCLASS_LOWER && s2.cnt > 1);
goto again;
+ } else if (s1.state == CCLASS &&
+ s2.state == CCLASS_UPPER &&
+ s1.cnt == 1 && s2.cnt == 1) {
+ do {
+ ch = towupper(s1.lastch);
+ cmap_add(map, s1.lastch, ch);
+ if (sflag && iswupper(ch))
+ cset_add(squeeze, ch);
+ if (!next(&s1))
+ goto endloop;
+ } while (s1.state == CCLASS && s1.cnt > 1);
+ /* skip upper set */
+ do {
+ if (!next(&s2))
+ break;
+ } while (s2.state == CCLASS_UPPER && s2.cnt > 1);
+ goto again;
+ } else if (s1.state == CCLASS &&
+ s2.state == CCLASS_LOWER &&
+ s1.cnt == 1 && s2.cnt == 1) {
+ do {
+ ch = towlower(s1.lastch);
+ cmap_add(map, s1.lastch, ch);
+ if (sflag && iswlower(ch))
+ cset_add(squeeze, ch);
+ if (!next(&s1))
+ goto endloop;
+ } while (s1.state == CCLASS && s1.cnt > 1);
+ /* skip lower set */
+ do {
+ if (!next(&s2))
+ break;
+ } while (s2.state == CCLASS_LOWER && s2.cnt > 1);
+ goto again;
} else {
cmap_add(map, s1.lastch, s2.lastch);
if (sflag)