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-rw-r--r--mysys/mf_fn_ext.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/mysys/mf_fn_ext.c b/mysys/mf_fn_ext.c
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+++ b/mysys/mf_fn_ext.c
@@ -0,0 +1,93 @@
+/* Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; version 2 of the License.
+
+ This program 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 for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335 USA */
+
+
+#include "mysys_priv.h"
+#include <m_string.h>
+
+/*
+ Return a pointer to the extension of the filename.
+
+ SYNOPSIS
+ fn_ext()
+ name Name of file
+
+ DESCRIPTION
+ The extension is defined as everything after the first extension character
+ (normally '.') after the directory name.
+
+ RETURN VALUES
+ Pointer to the extension character. If there isn't any extension,
+ points at the end ASCII(0) of the filename.
+*/
+
+char *fn_ext(const char *name)
+{
+ register const char *pos, *gpos;
+ DBUG_ENTER("fn_ext");
+ DBUG_PRINT("mfunkt",("name: '%s'",name));
+
+#if defined(FN_DEVCHAR) || defined(BASKSLASH_MBTAIL)
+ {
+ char buff[FN_REFLEN];
+ size_t res_length;
+ gpos= name+ dirname_part(buff,(char*) name, &res_length);
+ }
+#else
+ if (!(gpos= strrchr(name, FN_LIBCHAR)))
+ gpos= name;
+#endif
+ pos= strchr(gpos, FN_EXTCHAR);
+ DBUG_RETURN((char*) (pos ? pos : strend(gpos)));
+} /* fn_ext */
+
+
+/*
+ Return a pointer to the extension of the filename.
+
+ SYNOPSIS
+ fn_ext2()
+ name Name of file
+
+ DESCRIPTION
+ The extension is defined as everything after the last extension character
+ (normally '.') after the directory name.
+
+ RETURN VALUES
+ Pointer to the extension character. If there isn't any extension,
+ points at the end ASCII(0) of the filename.
+*/
+
+char *fn_ext2(const char *name)
+{
+ register const char *pos, *gpos;
+ DBUG_ENTER("fn_ext");
+ DBUG_PRINT("mfunkt",("name: '%s'",name));
+
+#if defined(FN_DEVCHAR) || defined(BASKSLASH_MBTAIL)
+ {
+ char buff[FN_REFLEN];
+ size_t res_length;
+ gpos= name+ dirname_part(buff,(char*) name, &res_length);
+ }
+#else
+ if (!(gpos= strrchr(name, FN_LIBCHAR)))
+ gpos= name;
+#endif
+ // locate the last occurrence of FN_EXTCHAR
+ pos= strrchr(gpos, FN_EXTCHAR);
+ DBUG_RETURN((char*) (pos ? pos : strend(gpos)));
+} /* fn_ext2 */
+