87 lines
3.9 KiB
C
87 lines
3.9 KiB
C
// Copyright (c) 2009 Marshall A. Greenblatt. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following disclaimer
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// in the documentation and/or other materials provided with the
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// distribution.
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// * Neither the name of Google Inc. nor the name Chromium Embedded
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// Framework nor the names of its contributors may be used to endorse
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// or promote products derived from this software without specific prior
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// written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#ifndef _CEF_STRING_H
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#define _CEF_STRING_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "cef_export.h"
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#include <wchar.h>
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// CEF strings are NUL-terminated wide character strings prefixed with a size
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// value, similar to the Microsoft BSTR type. Use the below API functions for
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// allocating, managing and freeing CEF strings.
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typedef wchar_t* cef_string_t;
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// Return the wide character length of the CEF string as allocated by
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// cef_string_alloc_len(). The returned value does not include the NUL
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// terminating character. This length may differ from the string length
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// as returned by wcslen().
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CEF_EXPORT size_t cef_string_length(cef_string_t str);
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// Allocate and return a new CEF string that is a copy of |str|. If |str| is
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// NULL or if allocation fails NULL will be returned. If |str| is of length
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// 0 a valid empty CEF string will be returned.
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CEF_EXPORT cef_string_t cef_string_alloc(const wchar_t* str);
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// Allocate and return a new CEF string that is a copy of |str|. |len| is the
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// wide character length of the new CEF string not including the NUL
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// terminating character. |str| will be copied without checking for a NUL
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// terminating character. If |str| is NULL or if allocation fails NULL will
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// be returned. If |str| is of length 0 a valid empty CEF string will be
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// returned.
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CEF_EXPORT cef_string_t cef_string_alloc_length(const wchar_t* str,
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size_t len);
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// Reallocate an existing CEF string. The contents of |oldstr| will be
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// replaced with the contents of |newstr|; |newstr| may not be NULL. Returns 1
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// on success and 0 on failure.
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CEF_EXPORT int cef_string_realloc(cef_string_t* oldstr, const wchar_t* newstr);
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// Reallocate an existing CEF string. If |newstr| is NULL the contents of
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// |oldstr| will remain unchanged; otherwise, they will be replaced with the
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// contents of |newstr|. |len| is the new wide character length of the string
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// not including the NUL terminating character. Returns 1 on success and 0
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// on failure.
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CEF_EXPORT int cef_string_realloc_length(cef_string_t* oldstr,
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const wchar_t* newstr,
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size_t len);
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// Free a CEF string. If |str| is NULL this function does nothing.
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CEF_EXPORT void cef_string_free(cef_string_t str);
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#ifdef __cplusplus
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}
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#endif
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#endif // _CEF_STRING_H
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