Edwin Smith
113 linhas
3.8 KiB
C++
113 linhas
3.8 KiB
C++
/*
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+----------------------------------------------------------------------+
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| HipHop for PHP |
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+----------------------------------------------------------------------+
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| Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com) |
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| Copyright (c) 1998-2010 Zend Technologies Ltd. (http://www.zend.com) |
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+----------------------------------------------------------------------+
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| This source file is subject to version 2.00 of the Zend license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.zend.com/license/2_00.txt. |
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| If you did not receive a copy of the Zend license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@zend.com so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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*/
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#include "hphp/runtime/base/intl_convert.h"
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#include <stdlib.h>
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namespace HPHP {
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void intl_convert_utf8_to_utf16(UChar** target, int* target_len,
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const char* src, int src_len,
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UErrorCode* status) {
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UChar* dst_buf = nullptr;
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int32_t dst_len = 0;
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/* If *target is NULL determine required destination buffer size
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* (pre-flighting). Otherwise, attempt to convert source string;
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* if *target buffer is not large enough it will be resized appropriately.
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*/
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*status = U_ZERO_ERROR;
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u_strFromUTF8(*target, *target_len, &dst_len, src, src_len, status);
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if (*status == U_ZERO_ERROR) {
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/* String is converted successfuly */
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(*target)[dst_len] = 0;
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*target_len = dst_len;
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return;
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}
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/* Bail out if an unexpected error occured.
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* (U_BUFFER_OVERFLOW_ERROR means that *target buffer is not large enough).
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* (U_STRING_NOT_TERMINATED_WARNING usually means that the input string
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* is empty).
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*/
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if (*status != U_BUFFER_OVERFLOW_ERROR &&
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*status != U_STRING_NOT_TERMINATED_WARNING) {
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return;
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}
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// Allocate memory for the destination buffer (it will be zero-terminated).
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dst_buf = (UChar *)malloc((dst_len + 1) * sizeof(UChar));
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/* Convert source string from UTF-8 to UTF-16. */
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*status = U_ZERO_ERROR;
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u_strFromUTF8(dst_buf, dst_len+1, nullptr, src, src_len, status);
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if (U_FAILURE(*status)) {
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free(dst_buf);
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return;
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}
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dst_buf[dst_len] = 0;
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if (*target) free(*target);
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*target = dst_buf;
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*target_len = dst_len;
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}
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void intl_convert_utf16_to_utf8(char** target, int* target_len,
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const UChar* src, int src_len,
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UErrorCode* status) {
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char* dst_buf = nullptr;
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int32_t dst_len;
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/* Determine required destination buffer size (pre-flighting). */
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*status = U_ZERO_ERROR;
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u_strToUTF8(nullptr, 0, &dst_len, src, src_len, status);
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/* Bail out if an unexpected error occured.
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* (U_BUFFER_OVERFLOW_ERROR means that *target buffer is not large enough).
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* (U_STRING_NOT_TERMINATED_WARNING usually means that the input string
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* is empty).
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*/
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if (*status != U_BUFFER_OVERFLOW_ERROR &&
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*status != U_STRING_NOT_TERMINATED_WARNING) {
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return;
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}
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// Allocate memory for the destination buffer (it will be zero-terminated).
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dst_buf = (char *)malloc(dst_len + 1);
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/* Convert source string from UTF-16 to UTF-8. */
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*status = U_ZERO_ERROR;
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u_strToUTF8(dst_buf, dst_len, nullptr, src, src_len, status);
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if (U_FAILURE(*status)) {
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free(dst_buf);
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return;
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}
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/* U_STRING_NOT_TERMINATED_WARNING is OK for us => reset 'status'. */
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*status = U_ZERO_ERROR;
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dst_buf[dst_len] = 0;
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*target = dst_buf;
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*target_len = dst_len;
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}
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///////////////////////////////////////////////////////////////////////////////
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}
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