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145 lines (133 loc) · 5.54 KB
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/*
* Copyright (C) 2006 Apple Inc. All rights reserved.
*
* 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 APPLE INC. ``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 APPLE INC. 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 JSStringRef_h
#define JSStringRef_h
#include <JavaScriptCore/JSValueRef.h>
#ifndef __cplusplus
#include <stdbool.h>
#endif
#include <stddef.h> /* for size_t */
#ifdef __cplusplus
extern "C" {
#endif
#if !defined(WIN32) && !defined(_WIN32) \
&& !((defined(__CC_ARM) || defined(__ARMCC__)) && !defined(__linux__)) /* RVCT */
/*!
@typedef JSChar
@abstract A Unicode character.
*/
typedef unsigned short JSChar;
#else
typedef wchar_t JSChar;
#endif
/*!
@function
@abstract Creates a JavaScript string from a buffer of Unicode characters.
@param chars The buffer of Unicode characters to copy into the new JSString.
@param numChars The number of characters to copy from the buffer pointed to by chars.
@result A JSString containing chars. Ownership follows the Create Rule.
*/
JS_EXPORT JSStringRef JSStringCreateWithCharacters(const JSChar* chars, size_t numChars);
/*!
@function
@abstract Creates a JavaScript string from a null-terminated UTF8 string.
@param string The null-terminated UTF8 string to copy into the new JSString.
@result A JSString containing string. Ownership follows the Create Rule.
*/
JS_EXPORT JSStringRef JSStringCreateWithUTF8CString(const char* string);
/*!
@function
@abstract Retains a JavaScript string.
@param string The JSString to retain.
@result A JSString that is the same as string.
*/
JS_EXPORT JSStringRef JSStringRetain(JSStringRef string);
/*!
@function
@abstract Releases a JavaScript string.
@param string The JSString to release.
*/
JS_EXPORT void JSStringRelease(JSStringRef string);
/*!
@function
@abstract Returns the number of Unicode characters in a JavaScript string.
@param string The JSString whose length (in Unicode characters) you want to know.
@result The number of Unicode characters stored in string.
*/
JS_EXPORT size_t JSStringGetLength(JSStringRef string);
/*!
@function
@abstract Returns a pointer to the Unicode character buffer that
serves as the backing store for a JavaScript string.
@param string The JSString whose backing store you want to access.
@result A pointer to the Unicode character buffer that serves as string's
backing store, which will be deallocated when string is deallocated.
*/
JS_EXPORT const JSChar* JSStringGetCharactersPtr(JSStringRef string);
/*!
@function
@abstract Returns the maximum number of bytes a JavaScript string will
take up if converted into a null-terminated UTF8 string.
@param string The JSString whose maximum converted size (in bytes) you
want to know.
@result The maximum number of bytes that could be required to convert string into a
null-terminated UTF8 string. The number of bytes that the conversion actually ends
up requiring could be less than this, but never more.
*/
JS_EXPORT size_t JSStringGetMaximumUTF8CStringSize(JSStringRef string);
/*!
@function
@abstract Converts a JavaScript string into a null-terminated UTF8 string,
and copies the result into an external byte buffer.
@param string The source JSString.
@param buffer The destination byte buffer into which to copy a null-terminated
UTF8 representation of string. On return, buffer contains a UTF8 string
representation of string. If bufferSize is too small, buffer will contain only
partial results. If buffer is not at least bufferSize bytes in size,
behavior is undefined.
@param bufferSize The size of the external buffer in bytes.
@result The number of bytes written into buffer (including the null-terminator byte).
*/
JS_EXPORT size_t JSStringGetUTF8CString(JSStringRef string, char* buffer, size_t bufferSize);
/*!
@function
@abstract Tests whether two JavaScript strings match.
@param a The first JSString to test.
@param b The second JSString to test.
@result true if the two strings match, otherwise false.
*/
JS_EXPORT bool JSStringIsEqual(JSStringRef a, JSStringRef b);
/*!
@function
@abstract Tests whether a JavaScript string matches a null-terminated UTF8 string.
@param a The JSString to test.
@param b The null-terminated UTF8 string to test.
@result true if the two strings match, otherwise false.
*/
JS_EXPORT bool JSStringIsEqualToUTF8CString(JSStringRef a, const char* b);
#ifdef __cplusplus
}
#endif
#endif /* JSStringRef_h */