base64: Move base64 encoding support

10 files changed, 181 insertions, 111 deletions

diff --git a/cpukit/dev/iobase64.c b/cpukit/base64/base64-encode.c
index 0ac70d3ddb..e72657cc5f 100644
--- a/cpukit/dev/iobase64.c
+++ b/cpukit/base64/base64-encode.c
@@ -3,14 +3,14 @@
 /**
  * @file
  *
- * @ingroup RTEMSDeviceIO
+ * @ingroup RTEMSImplBase64
  *
  * @brief This source file contains the implementation of
- *   _IO_Base64() and _IO_Base64url().
+ *   _Base64_Encode() and _Base64url_Encode().
  */
 
 /*
- * Copyright (C) 2020, 2021 embedded brains GmbH & Co. KG
+ * Copyright (C) 2020, 2024 embedded brains GmbH & Co. KG
  * Copyright (C) 2004, 2005, 2007, 2009  Internet Systems Consortium, Inc. ("ISC")
  * Copyright (C) 1998-2001, 2003  Internet Software Consortium.
  *
@@ -27,16 +27,16 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-#include <rtems/dev/io.h>
+#include <rtems/base64.h>
 
 static void
-_IO_Put(int c, void *arg, IO_Put_char put_char)
+_Base64_Put(int c, void *arg, IO_Put_char put_char)
 {
 	(*put_char)(c, arg);
 }
 
 static int
-_IO_Base64_with_encoding(IO_Put_char put_char, void *arg, const void *src,
+_Base64_Do_encode(IO_Put_char put_char, void *arg, const void *src,
     size_t srclen, const char *wordbreak, int wordlen, const char *encoding)
 {
 	unsigned int loops = 0;
@@ -48,12 +48,12 @@ _IO_Base64_with_encoding(IO_Put_char put_char, void *arg, const void *src,
 	}
 
 	while (srclen > 2) {
-		_IO_Put(encoding[(in[0]>>2)&0x3f], arg, put_char);
-		_IO_Put(encoding[((in[0]<<4)&0x30)|
+		_Base64_Put(encoding[(in[0]>>2)&0x3f], arg, put_char);
+		_Base64_Put(encoding[((in[0]<<4)&0x30)|
 				((in[1]>>4)&0x0f)], arg, put_char);
-		_IO_Put(encoding[((in[1]<<2)&0x3c)|
+		_Base64_Put(encoding[((in[1]<<2)&0x3c)|
 				((in[2]>>6)&0x03)], arg, put_char);
-		_IO_Put(encoding[in[2]&0x3f], arg, put_char);
+		_Base64_Put(encoding[in[2]&0x3f], arg, put_char);
 		in += 3;
 		srclen -= 3;
 		out += 4;
@@ -65,24 +65,24 @@ _IO_Base64_with_encoding(IO_Put_char put_char, void *arg, const void *src,
 			const char *w = wordbreak;
 			loops = 0;
 			while (*w != '\0') {
-				_IO_Put(*w, arg, put_char);
+				_Base64_Put(*w, arg, put_char);
 				++w;
 				++out;
 			}
 		}
 	}
 	if (srclen == 2) {
-		_IO_Put(encoding[(in[0]>>2)&0x3f], arg, put_char);
-		_IO_Put(encoding[((in[0]<<4)&0x30)|
+		_Base64_Put(encoding[(in[0]>>2)&0x3f], arg, put_char);
+		_Base64_Put(encoding[((in[0]<<4)&0x30)|
 				((in[1]>>4)&0x0f)], arg, put_char);
-		_IO_Put(encoding[((in[1]<<2)&0x3c)], arg, put_char);
-		_IO_Put('=', arg, put_char);
+		_Base64_Put(encoding[((in[1]<<2)&0x3c)], arg, put_char);
+		_Base64_Put('=', arg, put_char);
 		out += 4;
 	} else if (srclen == 1) {
-		_IO_Put(encoding[(in[0]>>2)&0x3f], arg, put_char);
-		_IO_Put(encoding[((in[0]<<4)&0x30)], arg, put_char);
-		_IO_Put('=', arg, put_char);
-		_IO_Put('=', arg, put_char);
+		_Base64_Put(encoding[(in[0]>>2)&0x3f], arg, put_char);
+		_Base64_Put(encoding[((in[0]<<4)&0x30)], arg, put_char);
+		_Base64_Put('=', arg, put_char);
+		_Base64_Put('=', arg, put_char);
 		out += 4;
 	}
 	return out;
@@ -92,10 +92,10 @@ static const char base64[] =
 	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
 
 int
-_IO_Base64(IO_Put_char put_char, void *arg, const void *src, size_t srclen,
+_Base64_Encode(IO_Put_char put_char, void *arg, const void *src, size_t srclen,
     const char *wordbreak, int wordlen)
 {
-	return _IO_Base64_with_encoding(put_char, arg, src, srclen, wordbreak,
+	return _Base64_Do_encode(put_char, arg, src, srclen, wordbreak,
 	    wordlen, base64);
 }
 
@@ -103,9 +103,9 @@ static const char base64url[] =
 	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_=";
 
 int
-_IO_Base64url(IO_Put_char put_char, void *arg, const void *src, size_t srclen,
-    const char *wordbreak, int wordlen)
+_Base64url_Encode(IO_Put_char put_char, void *arg, const void *src,
+    size_t srclen, const char *wordbreak, int wordlen)
 {
-	return _IO_Base64_with_encoding(put_char, arg, src, srclen, wordbreak,
+	return _Base64_Do_encode(put_char, arg, src, srclen, wordbreak,
 	    wordlen, base64url);
 }
diff --git a/cpukit/include/rtems/base64.h b/cpukit/include/rtems/base64.h
new file mode 100644
index 0000000000..10c1e50840
--- /dev/null
+++ b/cpukit/include/rtems/base64.h
@@ -0,0 +1,125 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSImplBase64
+ *
+ * @brief This header file provides the interfaces of the
+ *   @ref RTEMSImplBase64.
+ */
+
+/*
+ * Copyright (C) 2020, 2024 embedded brains GmbH & Co. KG
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _RTEMS_BASE64_H
+#define _RTEMS_BASE64_H
+
+#include <rtems/dev/io.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+/**
+ * @defgroup RTEMSImplBase64 Base64 Encoding and Decoding
+ *
+ * @ingroup RTEMSImpl
+ *
+ * @brief This group contains support functions for base64 and base64url
+ *   encoding and decoding.
+ *
+ * @{
+ */
+
+/**
+ * @brief Outputs the source buffer in base64 encoding.
+ *
+ * After word length of output characters produced by the encoding a word break
+ * is produced.
+ *
+ * @param put_char is the put character function used to output the encoded
+ *   source buffer.
+ *
+ * @param arg is the argument passed to the put character function.
+ *
+ * @param src is the pointer to the source buffer begin.
+ *
+ * @param srclen is the length of the source buffer in bytes.
+ *
+ * @param wordbreak is the word break string.
+ *
+ * @param wordlen is the word length in bytes.  If the word length is less than
+ *   four, then a word length of four will be used.
+ *
+ * @return Returns the count of output characters.
+ */
+int _Base64_Encode(
+  IO_Put_char  put_char,
+  void        *arg,
+  const void  *src,
+  size_t       len,
+  const char  *wordbreak,
+  int          wordlen
+);
+
+/**
+ * @brief Outputs the source buffer in base64url encoding.
+ *
+ * After word length of output characters produced by the encoding a word break
+ * is produced.
+ *
+ * @param put_char is the put character function used to output the encoded
+ *   source buffer.
+ *
+ * @param arg is the argument passed to the put character function.
+ *
+ * @param src is the pointer to the source buffer begin.
+ *
+ * @param srclen is the length of the source buffer in bytes.
+ *
+ * @param wordbreak is the word break string.
+ *
+ * @param wordlen is the word length in bytes.  If the word length is less than
+ *   four, then a word length of four will be used.
+ *
+ * @return Returns the count of output characters.
+ */
+int _Base64url_Encode(
+  IO_Put_char  put_char,
+  void        *arg,
+  const void  *src,
+  size_t       len,
+  const char  *wordbreak,
+  int          wordlen
+);
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _RTEMS_BASE64_H */
diff --git a/cpukit/include/rtems/dev/io.h b/cpukit/include/rtems/dev/io.h
index 93f384a551..b8bcde7af4 100644
--- a/cpukit/include/rtems/dev/io.h
+++ b/cpukit/include/rtems/dev/io.h
@@ -107,68 +107,6 @@ int _IO_Vprintf(
 );
 
 /**
- * @brief Outputs the source buffer in base64 encoding.
- *
- * After word length of output characters produced by the encoding a word break
- * is produced.
- *
- * @param put_char is the put character function used to output the encoded
- *   source buffer.
- *
- * @param arg is the argument passed to the put character function.
- *
- * @param src is the pointer to the source buffer begin.
- *
- * @param srclen is the length of the source buffer in bytes.
- *
- * @param wordbreak is the word break string.
- *
- * @param wordlen is the word length in bytes.  If the word length is less than
- *   four, then a word length of four will be used.
- *
- * @return Returns the count of output characters.
- */
-int _IO_Base64(
-  IO_Put_char  put_char,
-  void        *arg,
-  const void  *src,
-  size_t       len,
-  const char  *wordbreak,
-  int          wordlen
-);
-
-/**
- * @brief Outputs the source buffer in base64url encoding.
- *
- * After word length of output characters produced by the encoding a word break
- * is produced.
- *
- * @param put_char is the put character function used to output the encoded
- *   source buffer.
- *
- * @param arg is the argument passed to the put character function.
- *
- * @param src is the pointer to the source buffer begin.
- *
- * @param srclen is the length of the source buffer in bytes.
- *
- * @param wordbreak is the word break string.
- *
- * @param wordlen is the word length in bytes.  If the word length is less than
- *   four, then a word length of four will be used.
- *
- * @return Returns the count of output characters.
- */
-int _IO_Base64url(
-  IO_Put_char  put_char,
-  void        *arg,
-  const void  *src,
-  size_t       len,
-  const char  *wordbreak,
-  int          wordlen
-);
-
-/**
  * @brief Issues a couple of no-operation instructions.
  *
  * This function may be used to burn a couple of processor cycles with minimum
diff --git a/cpukit/libtest/gcovdumpinfobase64.c b/cpukit/libtest/gcovdumpinfobase64.c
index 0b8d901c69..f75d157ab9 100644
--- a/cpukit/libtest/gcovdumpinfobase64.c
+++ b/cpukit/libtest/gcovdumpinfobase64.c
@@ -43,6 +43,8 @@
 #include <limits.h>
 #include <string.h>
 
+#include <rtems/base64.h>
+
 typedef struct {
   IO_Put_char put_char;
   void       *arg;
@@ -77,7 +79,7 @@ static void _Gcov_Base64_encode( int c, void *arg )
 
   if ( index == RTEMS_ARRAY_SIZE( ctx->buf ) - 1 ) {
     index = 0;
-    _IO_Base64(
+    _Base64_Encode(
       _Gcov_Base64_put_char,
       ctx,
       ctx->buf,
@@ -100,5 +102,5 @@ void _Gcov_Dump_info_base64( IO_Put_char put_char, void *arg )
   ctx.put_char = put_char;
   ctx.arg = arg;
   _Gcov_Dump_info( _Gcov_Base64_encode, &ctx );
-  _IO_Base64( _Gcov_Base64_put_char, &ctx, ctx.buf, ctx.index, NULL, INT_MAX );
+  _Base64_Encode( _Gcov_Base64_put_char, &ctx, ctx.buf, ctx.index, NULL, INT_MAX );
 }
diff --git a/cpukit/libtest/t-test-hash-sha256.c b/cpukit/libtest/t-test-hash-sha256.c
index b83285326b..79da4b5dfb 100644
--- a/cpukit/libtest/t-test-hash-sha256.c
+++ b/cpukit/libtest/t-test-hash-sha256.c
@@ -35,7 +35,6 @@
  */
 
 #include <rtems/test.h>
-#include <rtems/dev/io.h>
 
 #include <limits.h>
 
@@ -45,6 +44,8 @@
 #include <openssl/sha.h>
 #endif
 
+#include <rtems/base64.h>
+
 typedef struct {
 	SHA256_CTX sha256;
 	T_putchar putchar;
@@ -94,7 +95,7 @@ T_report_hash_sha256_finalize(void)
 	ctx = &T_report_hash_sha256_instance;
 	SHA256_Final(hash, &ctx->sha256);
 	T_printf("Y:ReportHash:SHA256:");
-	(void)_IO_Base64url(ctx->putchar, ctx->putchar_arg, hash,
+	(void)_Base64url_Encode(ctx->putchar, ctx->putchar_arg, hash,
 	    sizeof(hash), NULL, INT_MAX);
 	T_printf("\n");
 }
diff --git a/cpukit/libtrace/record/record-dump-base64.c b/cpukit/libtrace/record/record-dump-base64.c
index 8d403e9c27..9438041664 100644
--- a/cpukit/libtrace/record/record-dump-base64.c
+++ b/cpukit/libtrace/record/record-dump-base64.c
@@ -30,11 +30,12 @@
 #endif
 
 #include <rtems/recorddump.h>
-#include <rtems/dev/io.h>
 
 #include <limits.h>
 #include <string.h>
 
+#include <rtems/base64.h>
+
 typedef struct {
   IO_Put_char  put_char;
   void        *arg;
@@ -76,7 +77,7 @@ static void chunk( void *arg, const void *data, size_t length )
 
     if ( index == RTEMS_ARRAY_SIZE( ctx->buf ) - 1 ) {
       index = 0;
-      _IO_Base64(
+      _Base64_Encode(
         put_char,
         ctx,
         ctx->buf,
@@ -94,7 +95,7 @@ static void chunk( void *arg, const void *data, size_t length )
 
 static void flush( dump_context *ctx )
 {
-  _IO_Base64( put_char, ctx, ctx->buf, ctx->index, NULL, INT_MAX );
+  _Base64_Encode( put_char, ctx, ctx->buf, ctx->index, NULL, INT_MAX );
 }
 
 void rtems_record_dump_base64( IO_Put_char put_char, void *arg )
diff --git a/cpukit/libtrace/record/record-dump-zbase64.c b/cpukit/libtrace/record/record-dump-zbase64.c
index 0979e36a47..43bd0ecff8 100644
--- a/cpukit/libtrace/record/record-dump-zbase64.c
+++ b/cpukit/libtrace/record/record-dump-zbase64.c
@@ -30,11 +30,12 @@
 #endif
 
 #include <rtems/recorddump.h>
-#include <rtems/dev/io.h>
 
 #include <limits.h>
 #include <string.h>
 
+#include <rtems/base64.h>
+
 static void *dump_zalloc( void *opaque, unsigned items, unsigned size )
 {
   rtems_record_dump_base64_zlib_context *ctx;
@@ -96,7 +97,7 @@ static void chunk( void *arg, const void *data, size_t length )
       ctx->stream.next_out = &ctx->buf[ 0 ];
       ctx->stream.avail_out = sizeof( ctx->buf );
 
-      _IO_Base64( put_char, ctx, ctx->buf, sizeof( ctx->buf ), NULL, INT_MAX );
+      _Base64_Encode( put_char, ctx, ctx->buf, sizeof( ctx->buf ), NULL, INT_MAX );
     }
   }
 }
@@ -115,11 +116,11 @@ static void flush( rtems_record_dump_base64_zlib_context *ctx )
       ctx->stream.next_out = &ctx->buf[ 0 ];
       ctx->stream.avail_out = sizeof( ctx->buf );
 
-      _IO_Base64( put_char, ctx, ctx->buf, sizeof( ctx->buf ), NULL, INT_MAX );
+      _Base64_Encode( put_char, ctx, ctx->buf, sizeof( ctx->buf ), NULL, INT_MAX );
     }
   }
 
-  _IO_Base64(
+  _Base64_Encode(
     put_char,
     ctx,
     ctx->buf,
diff --git a/cpukit/score/src/hash.c b/cpukit/score/src/hash.c
index 888a618751..0b9f127e54 100644
--- a/cpukit/score/src/hash.c
+++ b/cpukit/score/src/hash.c
@@ -39,7 +39,7 @@
 
 #include <rtems/score/hash.h>
 #include <rtems/score/assert.h>
-#include <rtems/dev/io.h>
+#include <rtems/base64.h>
 
 #include <limits.h>
 
@@ -64,7 +64,7 @@ void _Hash_Finalize( Hash_Context *context, Hash_Control *hash )
   context->hash = hash;
   context->index = 0;
   hash->chars[ sizeof( *hash ) - 1 ] = '\0';
-  n = _IO_Base64url(
+  n = _Base64url_Encode(
     _Hash_Put_char,
     context,
     digest,
diff --git a/spec/build/cpukit/librtemscpu.yml b/spec/build/cpukit/librtemscpu.yml
index 9202c31715..24b63af8de 100644
--- a/spec/build/cpukit/librtemscpu.yml
+++ b/spec/build/cpukit/librtemscpu.yml
@@ -79,6 +79,7 @@ install:
 - destination: ${BSP_INCLUDEDIR}/rtems
   source:
   - cpukit/include/rtems/assoc.h
+  - cpukit/include/rtems/base64.h
   - cpukit/include/rtems/bdbuf.h
   - cpukit/include/rtems/bdpart.h
   - cpukit/include/rtems/blkdev.h
@@ -527,6 +528,7 @@ source:
 - cpukit/compression/xz/xz_crc32.c
 - cpukit/compression/xz/xz_dec_lzma2.c
 - cpukit/compression/xz/xz_dec_stream.c
+- cpukit/base64/base64-encode.c
 - cpukit/dev/flash/flashdev.c
 - cpukit/dev/i2c/eeprom.c
 - cpukit/dev/i2c/fpga-i2c-slave.c
@@ -539,7 +541,6 @@ source:
 - cpukit/dev/i2c/ti-lm25066a.c
 - cpukit/dev/i2c/ti-tmp112.c
 - cpukit/dev/i2c/xilinx-axi-i2c.c
-- cpukit/dev/iobase64.c
 - cpukit/dev/ioprintf.c
 - cpukit/dev/iorelax.c
 - cpukit/dev/iovprintf.c
diff --git a/testsuites/sptests/spprintk/init.c b/testsuites/sptests/spprintk/init.c
index b69edc095e..4fc1c0cc97 100644
--- a/testsuites/sptests/spprintk/init.c
+++ b/testsuites/sptests/spprintk/init.c
@@ -32,6 +32,7 @@
 #include "config.h"
 #endif
 
+#include <rtems/base64.h>
 #include <rtems/dev/io.h>
 
 /*
@@ -212,52 +213,52 @@ static void test_io_base64( test_context *ctx )
   int n;
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 9, "\n", 0 );
+  n = _Base64_Encode( put_char, ctx, buf, 9, "\n", 0 );
   rtems_test_assert( n == 14 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj\nZGVm\nZ2hp" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 8, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 8, "\n", 4 );
   rtems_test_assert( n == 14 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj\nZGVm\nZ2g=" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 7, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 7, "\n", 4 );
   rtems_test_assert( n == 14 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj\nZGVm\nZw==" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 6, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 6, "\n", 4 );
   rtems_test_assert( n == 9 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj\nZGVm" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 5, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 5, "\n", 4 );
   rtems_test_assert( n == 9 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj\nZGU=" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 4, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 4, "\n", 4 );
   rtems_test_assert( n == 9 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj\nZA==" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 3, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 3, "\n", 4 );
   rtems_test_assert( n == 4 );
   rtems_test_assert( strcmp( ctx->buf, "YWJj" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 2, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 2, "\n", 4 );
   rtems_test_assert( n == 4 );
   rtems_test_assert( strcmp( ctx->buf, "YWI=" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 1, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 1, "\n", 4 );
   rtems_test_assert( n == 4 );
   rtems_test_assert( strcmp( ctx->buf, "YQ==" ) == 0 );
 
   clear( ctx );
-  n = _IO_Base64( put_char, ctx, buf, 0, "\n", 4 );
+  n = _Base64_Encode( put_char, ctx, buf, 0, "\n", 4 );
   rtems_test_assert( n == 0 );
 }
 
@@ -267,7 +268,7 @@ static void test_io_base64url( test_context *ctx )
   int n;
 
   clear( ctx );
-  n = _IO_Base64url( put_char, ctx, buf, sizeof( buf ), "\n", 0 );
+  n = _Base64url_Encode( put_char, ctx, buf, sizeof( buf ), "\n", 0 );
   rtems_test_assert( n == 9 );
   rtems_test_assert( strcmp( ctx->buf, "AAA-\nAAA_" ) == 0 );
 }