jdk8-mips64-public/hotspot: src/share/vm/utilities/stringUtils.cpp@dc1769738300

     1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    25 #include "precompiled.hpp"

    26 #include "utilities/stringUtils.hpp"

    28 int StringUtils::replace_no_expand(char* string, const char* from, const char* to) {

    29   int replace_count = 0;

    30   size_t from_len = strlen(from);

    31   size_t to_len = strlen(to);

    32   assert(from_len >= to_len, "must not expand input");

    34   for (char* dst = string; *dst && (dst = strstr(dst, from)) != NULL;) {

    35     char* left_over = dst + from_len;

    36     memmove(dst, to, to_len);                       // does not copy trailing 0 of <to>

    37     dst += to_len;                                  // skip over the replacement.

    38     memmove(dst, left_over, strlen(left_over) + 1); // copies the trailing 0 of <left_over>

    39     ++ replace_count;

    40   }

    42   return replace_count;

    43 }

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