/usr/include/subversion-1/svn_utf.h is in libsvn-dev 1.6.17dfsg-3ubuntu3.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* @copyright
* ====================================================================
* Copyright (c) 2000-2004, 2008 CollabNet. All rights reserved.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at http://subversion.tigris.org/license-1.html.
* If newer versions of this license are posted there, you may use a
* newer version instead, at your option.
*
* This software consists of voluntary contributions made by many
* individuals. For exact contribution history, see the revision
* history and logs, available at http://subversion.tigris.org/.
* ====================================================================
* @endcopyright
*
* @file svn_utf.h
* @brief UTF-8 conversion routines
* Whenever a conversion routine cannot convert to or from UTF-8, the
* error returned has code @c APR_EINVAL.
*/
#ifndef SVN_UTF_H
#define SVN_UTF_H
#include <apr_pools.h>
#include <apr_xlate.h> /* for APR_*_CHARSET */
#include "svn_types.h"
#include "svn_string.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define SVN_APR_LOCALE_CHARSET APR_LOCALE_CHARSET
#define SVN_APR_DEFAULT_CHARSET APR_DEFAULT_CHARSET
/**
* Initialize the UTF-8 encoding/decoding routines.
* Allocate cached translation handles in a subpool of @a pool.
*
* @note It is optional to call this function, but if it is used, no other
* svn function may be in use in other threads during the call of this
* function or when @a pool is cleared or destroyed.
* Initializing the UTF-8 routines will improve performance.
*
* @since New in 1.1.
*/
void
svn_utf_initialize(apr_pool_t *pool);
/** Set @a *dest to a utf8-encoded stringbuf from native stringbuf @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_stringbuf_to_utf8(svn_stringbuf_t **dest,
const svn_stringbuf_t *src,
apr_pool_t *pool);
/** Set @a *dest to a utf8-encoded string from native string @a src; allocate
* @a *dest in @a pool.
*/
svn_error_t *
svn_utf_string_to_utf8(const svn_string_t **dest,
const svn_string_t *src,
apr_pool_t *pool);
/** Set @a *dest to a utf8-encoded C string from native C string @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_cstring_to_utf8(const char **dest,
const char *src,
apr_pool_t *pool);
/** Set @a *dest to a utf8 encoded C string from @a frompage encoded C
* string @a src; allocate @a *dest in @a pool.
*
* @since New in 1.4.
*/
svn_error_t *
svn_utf_cstring_to_utf8_ex2(const char **dest,
const char *src,
const char *frompage,
apr_pool_t *pool);
/** Like svn_utf_cstring_to_utf8_ex2() but with @a convset_key which is
* ignored.
*
* @deprecated Provided for backward compatibility with the 1.3 API.
*/
SVN_DEPRECATED
svn_error_t *
svn_utf_cstring_to_utf8_ex(const char **dest,
const char *src,
const char *frompage,
const char *convset_key,
apr_pool_t *pool);
/** Set @a *dest to a natively-encoded stringbuf from utf8 stringbuf @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_stringbuf_from_utf8(svn_stringbuf_t **dest,
const svn_stringbuf_t *src,
apr_pool_t *pool);
/** Set @a *dest to a natively-encoded string from utf8 string @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_string_from_utf8(const svn_string_t **dest,
const svn_string_t *src,
apr_pool_t *pool);
/** Set @a *dest to a natively-encoded C string from utf8 C string @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_cstring_from_utf8(const char **dest,
const char *src,
apr_pool_t *pool);
/** Set @a *dest to a @a topage encoded C string from utf8 encoded C string
* @a src; allocate @a *dest in @a pool.
*
* @since New in 1.4.
*/
svn_error_t *
svn_utf_cstring_from_utf8_ex2(const char **dest,
const char *src,
const char *topage,
apr_pool_t *pool);
/** Like svn_utf_cstring_from_utf8_ex2() but with @a convset_key which is
* ignored.
*
* @deprecated Provided for backward compatibility with the 1.3 API.
*/
SVN_DEPRECATED
svn_error_t *
svn_utf_cstring_from_utf8_ex(const char **dest,
const char *src,
const char *topage,
const char *convset_key,
apr_pool_t *pool);
/** Return a fuzzily native-encoded C string from utf8 C string @a src,
* allocated in @a pool. A fuzzy recoding leaves all 7-bit ascii
* characters the same, and substitutes "?\\XXX" for others, where XXX
* is the unsigned decimal code for that character.
*
* This function cannot error; it is guaranteed to return something.
* First it will recode as described above and then attempt to convert
* the (new) 7-bit UTF-8 string to native encoding. If that fails, it
* will return the raw fuzzily recoded string, which may or may not be
* meaningful in the client's locale, but is (presumably) better than
* nothing.
*
* ### Notes:
*
* Improvement is possible, even imminent. The original problem was
* that if you converted a UTF-8 string (say, a log message) into a
* locale that couldn't represent all the characters, you'd just get a
* static placeholder saying "[unconvertible log message]". Then
* Justin Erenkrantz pointed out how on platforms that didn't support
* conversion at all, "svn log" would still fail completely when it
* encountered unconvertible data.
*
* Now for both cases, the caller can at least fall back on this
* function, which converts the message as best it can, substituting
* "?\\XXX" escape codes for the non-ascii characters.
*
* Ultimately, some callers may prefer the iconv "//TRANSLIT" option,
* so when we can detect that at configure time, things will change.
* Also, this should (?) be moved to apr/apu eventually.
*
* See http://subversion.tigris.org/issues/show_bug.cgi?id=807 for
* details.
*/
const char *
svn_utf_cstring_from_utf8_fuzzy(const char *src,
apr_pool_t *pool);
/** Set @a *dest to a natively-encoded C string from utf8 stringbuf @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_cstring_from_utf8_stringbuf(const char **dest,
const svn_stringbuf_t *src,
apr_pool_t *pool);
/** Set @a *dest to a natively-encoded C string from utf8 string @a src;
* allocate @a *dest in @a pool.
*/
svn_error_t *
svn_utf_cstring_from_utf8_string(const char **dest,
const svn_string_t *src,
apr_pool_t *pool);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* SVN_UTF_H */
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