From 9a705cbcaf6739dcd262e504ae4e0f987413aea2 Mon Sep 17 00:00:00 2001
From: matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Thu, 5 Feb 1998 09:46:10 +0000
Subject: string mbchar support (SJIS)

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/v1_1r@65 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 string.c | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

(limited to 'string.c')

diff --git a/string.c b/string.c
index 8c5b4eb76b..aea64dff0b 100644
--- a/string.c
+++ b/string.c
@@ -1397,7 +1397,10 @@ str_upcase_bang(str)
     str_modify(str);
     s = RSTRING(str)->ptr; send = s + RSTRING(str)->len;
     while (s < send) {
-	if (islower(*s)) {
+	if (ismbchar(*s)) {
+	    s++;
+	}
+	else if (islower(*s)) {
 	    *s = toupper(*s);
 	}
 	s++;
@@ -1422,7 +1425,10 @@ str_downcase_bang(str)
     str_modify(str);
     s = RSTRING(str)->ptr; send = s + RSTRING(str)->len;
     while (s < send) {
-	if (isupper(*s)) {
+	if (ismbchar(*s)) {
+	    s++;
+	}
+	else if (isupper(*s)) {
 	    *s = tolower(*s);
 	}
 	s++;
@@ -1449,7 +1455,10 @@ str_capitalize_bang(str)
     if (islower(*s))
 	*s = toupper(*s);
     while (++s < send) {
-	if (isupper(*s)) {
+	if (ismbchar(*s)) {
+	    s++;
+	}
+	else if (isupper(*s)) {
 	    *s = tolower(*s);
 	}
     }
@@ -1472,7 +1481,10 @@ str_swapcase_bang(str)
     str_modify(str);
     s = RSTRING(str)->ptr; send = s + RSTRING(str)->len;
     while (s < send) {
-	if (isupper(*s)) {
+	if (ismbchar(*s)) {
+	    s++;
+	}
+	else if (isupper(*s)) {
 	    *s = tolower(*s);
 	}
 	else if (islower(*s)) {
-- 
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