4849617: (cs)Revise Charset spec to allow '+' in names

Summary: Update the spec and code to accept '+' as a charset name character
Reviewed-by: alanb

src/share/classes/java/nio/charset/Charset.java

@@ -85,6 +85,9 @@ import sun.security.action.GetPropertyAction;
  *   <li> The dash character <tt>'-'</tt>
  *        (<tt>'&#92;u002d'</tt>,&nbsp;<small>HYPHEN-MINUS</small>),
  *
+ *   <li> The plus character <tt>'+'</tt>
+ *        (<tt>'&#92;u002b'</tt>,&nbsp;<small>PLUS SIGN</small>),
+ *
  *   <li> The period character <tt>'.'</tt>
  *        (<tt>'&#92;u002e'</tt>,&nbsp;<small>FULL STOP</small>),
  *
@@ -307,6 +310,7 @@ public abstract class Charset
             if (c >= 'a' && c <= 'z') continue;
             if (c >= '0' && c <= '9') continue;
             if (c == '-' && i != 0) continue;
+            if (c == '+' && i != 0) continue;
             if (c == ':' && i != 0) continue;
             if (c == '_' && i != 0) continue;
             if (c == '.' && i != 0) continue;

src/share/classes/sun/nio/cs/ext/ExtendedCharsets.java

@@ -916,7 +916,7 @@ public class ExtendedCharsets
                     "ccsid01140",
                     "cp01140",
                     "1140",
-                    // "ebcdic-us-037+euro"
+                    "ebcdic-us-037+euro"
                 });
 
         charset("IBM01141", "IBM1141",
@@ -925,7 +925,7 @@ public class ExtendedCharsets
                     "ccsid01141",
                     "cp01141",
                     "1141",
-                    // "ebcdic-de-273+euro"
+                    "ebcdic-de-273+euro"
                 });
 
         charset("IBM01142", "IBM1142",
@@ -934,8 +934,8 @@ public class ExtendedCharsets
                     "ccsid01142",
                     "cp01142",
                     "1142",
-                    // "ebcdic-no-277+euro",
-                    // "ebcdic-dk-277+euro"
+                    "ebcdic-no-277+euro",
+                    "ebcdic-dk-277+euro"
                 });
 
         charset("IBM01143", "IBM1143",
@@ -944,8 +944,8 @@ public class ExtendedCharsets
                     "ccsid01143",
                     "cp01143",
                     "1143",
-                    // "ebcdic-fi-278+euro",
-                    // "ebcdic-se-278+euro"
+                    "ebcdic-fi-278+euro",
+                    "ebcdic-se-278+euro"
                 });
 
         charset("IBM01144", "IBM1144",
@@ -954,7 +954,7 @@ public class ExtendedCharsets
                     "ccsid01144",
                     "cp01144",
                     "1144",
-                    // "ebcdic-it-280+euro"
+                    "ebcdic-it-280+euro"
                 });
 
         charset("IBM01145", "IBM1145",
@@ -963,7 +963,7 @@ public class ExtendedCharsets
                     "ccsid01145",
                     "cp01145",
                     "1145",
-                    // "ebcdic-es-284+euro"
+                    "ebcdic-es-284+euro"
                 });
 
         charset("IBM01146", "IBM1146",
@@ -972,7 +972,7 @@ public class ExtendedCharsets
                     "ccsid01146",
                     "cp01146",
                     "1146",
-                    // "ebcdic-gb-285+euro"
+                    "ebcdic-gb-285+euro"
                 });
 
         charset("IBM01147", "IBM1147",
@@ -981,7 +981,7 @@ public class ExtendedCharsets
                     "ccsid01147",
                     "cp01147",
                     "1147",
-                    // "ebcdic-fr-277+euro"
+                    "ebcdic-fr-277+euro"
                 });
 
         charset("IBM01148", "IBM1148",
@@ -990,7 +990,7 @@ public class ExtendedCharsets
                     "ccsid01148",
                     "cp01148",
                     "1148",
-                    // "ebcdic-international-500+euro"
+                    "ebcdic-international-500+euro"
                 });
 
         charset("IBM01149", "IBM1149",
@@ -999,7 +999,7 @@ public class ExtendedCharsets
                     "ccsid01149",
                     "cp01149",
                     "1149",
-                    // "ebcdic-s-871+euro"
+                    "ebcdic-s-871+euro"
                 });
 
         // Macintosh MacOS/Apple char encodingd

src/share/classes/sun/nio/cs/standard-charsets

@@ -314,6 +314,7 @@ charset IBM00858 IBM858
     alias ccsid00858
     alias cp00858
     alias 858
+    alias PC-Multilingual-850+euro
 
 charset IBM862 IBM862
     alias cp862                         #JDK historical

test/sun/nio/cs/CheckICNE.java

+/*
+ * Copyright 2008 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+   @bug 4849617
+   @summary Checks "+" is a legal character for charset name
+ */
+import java.nio.charset.*;
+
+public class CheckICNE {
+    static int failed = 0;
+    public static void main (String[] args) throws Exception {
+        try {
+            Charset.forName("abc+");
+        } catch (UnsupportedCharsetException uce) {}
+
+        try {
+            java.nio.charset.Charset.forName("+abc");
+        } catch (IllegalCharsetNameException icne) {}
+
+        String[] euros = {"PC-Multilingual-850+euro",
+                          "ebcdic-us-037+euro",
+                          "ebcdic-de-273+euro",
+                          "ebcdic-no-277+euro",
+                          "ebcdic-dk-277+euro",
+                          "ebcdic-fi-278+euro",
+                          "ebcdic-se-278+euro",
+                          "ebcdic-it-280+euro",
+                          "ebcdic-es-284+euro",
+                          "ebcdic-gb-285+euro",
+                          "ebcdic-fr-277+euro",
+                          "ebcdic-international-500+euro",
+                          "ebcdic-s-871+euro"
+        };
+
+        System.out.println("Test Passed!");
+    }
+}