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Date: 	Tue, 28 Oct 2003 11:54:30 +0300 (MSK)
From: "Alexander Aganichev" <aaganichev AT yandex DOT ru>
Sender: aaganichev AT yandex DOT ru
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To: djgpp-workers AT delorie DOT com
Subject: strcoll preparation
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Reply-To: djgpp-workers AT delorie DOT com

The following patch prepares strcoll() for locale support.

diff -rup djgpp.orig/src/libc/ansi/string/strcoll.c djgpp/src/libc/ansi/string/strcoll.c
--- djgpp.orig/src/libc/ansi/string/strcoll.c	2001-03-10 14:08:10.000000000 +0000
+++ djgpp/src/libc/ansi/string/strcoll.c	2002-06-08 20:13:20.000000000 +0000
@@ -1,8 +1,57 @@
 /* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
+/* Modified 1999 by Alexander S. Aganichev <asa AT users DOT sf DOT net> */
+
 #include <string.h>
 
+unsigned char __dj_collate_table[256] =
+{
+  0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f,
+  0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,
+  0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2d, 0x2e, 0x2f,
+  0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,
+  0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f,
+  0x40, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47,
+  0x48, 0x49, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f,
+  0x50, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57,
+  0x58, 0x59, 0x5a, 0x5b, 0x5c, 0x5d, 0x5e, 0x5f,
+  0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67,
+  0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f,
+  0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77,
+  0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f,
+  0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
+  0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
+  0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
+  0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
+  0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7,
+  0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf,
+  0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb5, 0xb6, 0xb7,
+  0xb8, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf,
+  0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7,
+  0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf,
+  0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6, 0xd7,
+  0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0xdd, 0xde, 0xdf,
+  0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
+  0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
+  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff
+};
+
+#define coll(c) __dj_collate_table[(unsigned char)c]
+
 int
 strcoll(const char *s1, const char *s2)
 {
-  return strcmp(s1, s2);
+  while (coll(*s1) == coll(*s2))
+  {
+    if (*s1 == 0)
+    {
+      return 0;
+    }
+    s1++;
+    s2++;
+  }
+  return coll(*s1) - coll(*s2);
 }

-- 
Alexander Aganichev

url: http://aaganichev.narod.ru
e-mail: aaganichev AT yandex DOT ru
gsm: +7-095-786-1339