/usr/include/opencc/openccxx.h is in libopencc-dev 0.3.0-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Open Chinese Convert
*
* Copyright 2010 BYVoid <byvoid.kcp@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __OPENCCXX_H_
#define __OPENCCXX_H_
/**
* c++ wrapper for opencc
*/
#ifdef __cplusplus
extern "C" {
#include <opencc.h>
}
#include <string>
#include <cstdlib>
namespace opencc
{
class opencc
{
public:
opencc(const char * config_file = NULL)
: od((opencc_t) -1)
{
open(config_file);
}
virtual ~opencc()
{
if (od != (opencc_t) -1)
opencc_close(od);
}
operator bool() const
{
return od != (opencc_t) -1;
}
int open(const char * config_file)
{
if (od != (opencc_t) -1)
opencc_close(od);
od = opencc_open(config_file);
return (od == (opencc_t) -1) ? (-1) : (0);
}
int set_conversion_mode(opencc_conversion_mode conversion_mode)
{
if (od == (opencc_t) -1)
return -1;
opencc_set_conversion_mode(od, conversion_mode);
return 0;
}
long convert(const std::string &in, std::string &out, long length = -1)
{
if (od == (opencc_t) -1)
return -1;
if (length == -1)
length = in.length();
char * outbuf = opencc_convert_utf8(od, in.c_str(), length);
if (outbuf == (char *) -1)
return -1;
out = outbuf;
free(outbuf);
return length;
}
/**
* Warning:
* This method can be used only if wchar_t is encoded in UCS4 on your platform.
*/
long convert(const std::wstring &in, std::wstring &out, long length = -1)
{
if (od == (opencc_t) -1)
return -1;
size_t inbuf_left = in.length ();
if (length >= 0 && length < (long)inbuf_left)
inbuf_left = length;
const ucs4_t * inbuf = (const ucs4_t *) in.c_str();
long count = 0;
while (inbuf_left != 0)
{
size_t retval;
size_t outbuf_left;
ucs4_t * outbuf;
/* occupy space */
outbuf_left = inbuf_left + 64;
out.resize (count + outbuf_left);
outbuf = (ucs4_t *)out.c_str () + count;
retval = opencc_convert (od, (ucs4_t **)&inbuf,
&inbuf_left, &outbuf, &outbuf_left);
if (retval == (size_t) -1)
return -1;
count += retval;
}
/* set the zero termination and shrink the size */
out.resize (count + 1);
out[count] = L'\0';
return count;
}
opencc_error errno() const
{
return opencc_errno();
}
void perror(const char * spec = "OpenCC") const
{
opencc_perror(spec);
}
private:
opencc_t od;
};
};
#endif
#endif /* __OPENCCXX_H_ */
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