From 640ed10d7c25ae7621893c11f70653a184961f71 Mon Sep 17 00:00:00 2001
From: Jarkko Hietaniemi <jhi@iki.fi>
Date: Sat, 16 Feb 2002 16:14:19 +0000
Subject: [PATCH] Retreat, retreat! (retract #14715 and #14716)

p4raw-id: //depot/perl@14723
---
 utf8.c | 40 ++++++++++++++--------------------------
 1 file changed, 14 insertions(+), 26 deletions(-)

diff --git a/utf8.c b/utf8.c
index 52768ad..71aaf8a 100644
--- a/utf8.c
+++ b/utf8.c
@@ -1287,34 +1287,23 @@ to the hash is by Perl_to_utf8_case().
 UV
 Perl_to_utf8_case(pTHX_ U8 *p, U8* ustrp, STRLEN *lenp, SV **swashp, char *normal, char *special)
 {
-    UV uv0, uv1, uv2;
-    U8 tmpbuf[UTF8_MAXLEN_FOLD+1];
-    STRLEN len;
+    UV uv;
 
     if (!*swashp)
         *swashp = swash_init("utf8", normal, &PL_sv_undef, 4, 0);
-    uv0 = utf8_to_uvchr(p, 0);
-    uv1 = NATIVE_TO_UNI(uv0);
-    uvuni_to_utf8(tmpbuf, uv1);
-    uv2 = swash_fetch(*swashp, tmpbuf, TRUE);
-    if (uv2) {
-	 /* It was "normal" (single character mapping). */
-         uv2 = UNI_TO_NATIVE(uv2);
-         len = uvchr_to_utf8(ustrp, uv2) - ustrp;
-         if (lenp)
-              *lenp = len;
-
-         return uv2;
-    }
-    else {
+    uv = swash_fetch(*swashp, p, TRUE);
+    if (!uv) {
 	 HV *hv;
 	 SV *keysv;
 	 HE *he;
 
+	 uv = utf8_to_uvchr(p, 0);
+
 	 if ((hv    = get_hv(special, FALSE)) &&
-	     (keysv = sv_2mortal(Perl_newSVpvf(aTHX_ "%04"UVXf, uv1))) &&
+	     (keysv = sv_2mortal(Perl_newSVpvf(aTHX_ "%04"UVXf, uv))) &&
 	     (he    = hv_fetch_ent(hv, keysv, FALSE, 0))) {
 	      SV *val = HeVAL(he);
+	      STRLEN len;
 	      char *s = SvPV(val, len);
 
 	      if (len > 1) {
@@ -1327,6 +1316,8 @@ Perl_to_utf8_case(pTHX_ U8 *p, U8* ustrp, STRLEN *lenp, SV **swashp, char *norma
 			 * mapping, since any characters in the low 256
 			 * are in Unicode code points, not EBCDIC.
 			 * --jhi */
+
+			U8 tmpbuf[UTF8_MAXLEN_FOLD+1];
 			U8 *d = tmpbuf;
 			U8 *t, *tend;
 			
@@ -1360,17 +1351,14 @@ Perl_to_utf8_case(pTHX_ U8 *p, U8* ustrp, STRLEN *lenp, SV **swashp, char *norma
 	      }
 	      if (lenp)
 		   *lenp = len;
-
 	      return utf8_to_uvchr(ustrp, 0);
 	 }
-
-	 /* So it was not "special": just copy it. */
-	 len = uvchr_to_utf8(ustrp, uv0) - ustrp;
-	 if (lenp)
-	      *lenp = len;
-
-	 return uv0;
+	 uv  = NATIVE_TO_UNI(uv);
     }
+    if (lenp)
+       *lenp = UNISKIP(uv);
+    uvuni_to_utf8(ustrp, uv);
+    return uv;
 }
 
 /*
-- 
2.7.4