From 03f322c7152c8f10805a0b8a75bf517e88fdf427 Mon Sep 17 00:00:00 2001
From: axel <axel@liljencrantz.se>
Date: Thu, 10 May 2007 16:14:28 +1000
Subject: [PATCH] Use ucs4 or ucs2 as a fallback character set if wchar_t
 encoding is not supported by iconv

darcs-hash:20070510061428-ac50b-ae9bfda1cc24bc29c2c492f902854440da319bfc.gz
---
 env_universal_common.c | 61 +++++++++++++++++++++++++++++++++++++++---
 1 file changed, 58 insertions(+), 3 deletions(-)

diff --git a/env_universal_common.c b/env_universal_common.c
index 5a6c49f98..df1dcb2d6 100644
--- a/env_universal_common.c
+++ b/env_universal_common.c
@@ -133,15 +133,70 @@ wchar_t *utf2wcs( const char *in )
 
 	wchar_t *out;
 
-	char *to_name[]=
+	/*
+	  Try to convert to wchar_t. If that is not a valid character set,
+	  try various names for ucs-4. We can't be sure that ucs-4 is
+	  really the character set used by wchar_t, but it is the best
+	  assumption we can make.
+	*/
+	char *to_name1[]=
 	{
-		"wchar_t", "WCHAR_T", "wchar", "WCHAR", 0
+		"wchar_t", "WCHAR_T", 
+		"wchar", "WCHAR", 
+		0
 	}
 	;
 
+	char *to_name4[]=
+	{
+		"wchar_t", "WCHAR_T", 
+		"wchar", "WCHAR", 
+		"ucs-4", "UCS-4", 
+		"ucs4", "UCS4", 
+		"utf-32", "UTF-32", 
+		"utf32", "UTF32", 
+		0
+	}
+	;
+
+	char *to_name2[]=
+	{
+		"wchar_t", "WCHAR_T", 
+		"wchar", "WCHAR", 
+		"ucs-2", "UCS-2", 
+		"ucs2", "UCS2", 
+		"utf-16", "UTF-16", 
+		"utf16", "UTF16", 
+		0
+	}
+	;
+
+	char **to_name=0;
+
+	switch (sizeof (wchar_t))
+	{
+	
+		case 2:
+			to_name = to_name2;
+			break;
+
+		case 4:
+			to_name = to_name4;
+			break;
+			
+		default:
+			to_name = to_name1;
+			break;
+	}
+	
+
+	/*
+	  The line protocol fish uses is always utf-8. 
+	*/
 	char *from_name[]=
 	{
-		"utf-8", "UTF-8", "utf8", "UTF8", 0
+		"utf-8", "UTF-8",
+		"utf8", "UTF8", 0
 	}
 	;