utf.c

subversion-1.4.3-1.tar.gz 配置svn的源码

  if (node->handle)
    {
      err = convert_to_stringbuf(node, src->data, src->len, dest, pool);
      if (! err)
        err = check_utf8((*dest)->data, (*dest)->len, pool);
    }
  else
    {
      err = check_non_ascii(src->data, src->len, pool);
      if (! err)
        *dest = svn_stringbuf_dup(src, pool);
    }

  put_xlate_handle_node(node, SVN_UTF_NTOU_XLATE_HANDLE, pool);

  return err;
}


svn_error_t *
svn_utf_string_to_utf8(const svn_string_t **dest,
                       const svn_string_t *src,
                       apr_pool_t *pool)
{
  svn_stringbuf_t *destbuf;
  xlate_handle_node_t *node;
  svn_error_t *err;

  SVN_ERR(get_ntou_xlate_handle_node(&node, pool));

  if (node->handle)
    {
      err = convert_to_stringbuf(node, src->data, src->len, &destbuf, pool);
      if (! err)
        err = check_utf8(destbuf->data, destbuf->len, pool);
      if (! err)
        *dest = svn_string_create_from_buf(destbuf, pool);
    }
  else
    {
      err = check_non_ascii(src->data, src->len, pool);
      if (! err)
        *dest = svn_string_dup(src, pool);
    }

  put_xlate_handle_node(node, SVN_UTF_NTOU_XLATE_HANDLE, pool);

  return err;
}


/* Common implementation for svn_utf_cstring_to_utf8,
   svn_utf_cstring_to_utf8_ex, svn_utf_cstring_from_utf8 and
   svn_utf_cstring_from_utf8_ex. Convert SRC to DEST using NODE->handle as
   the translator and allocating from POOL. */
static svn_error_t *
convert_cstring(const char **dest,
                const char *src,
                xlate_handle_node_t *node,
                apr_pool_t *pool)
{
  if (node->handle)
    {
      svn_stringbuf_t *destbuf;
      SVN_ERR(convert_to_stringbuf(node, src, strlen(src),
                                   &destbuf, pool));
      *dest = destbuf->data;
    }
  else
    {
      apr_size_t len = strlen(src);
      SVN_ERR(check_non_ascii(src, len, pool));
      *dest = apr_pstrmemdup(pool, src, len);
    }
  return SVN_NO_ERROR;
}


svn_error_t *
svn_utf_cstring_to_utf8(const char **dest,
                        const char *src,
                        apr_pool_t *pool)
{
  xlate_handle_node_t *node;
  svn_error_t *err;

  SVN_ERR(get_ntou_xlate_handle_node(&node, pool));
  err = convert_cstring(dest, src, node, pool);
  put_xlate_handle_node(node, SVN_UTF_NTOU_XLATE_HANDLE, pool);
  SVN_ERR(err);
  SVN_ERR(check_cstring_utf8(*dest, pool));

  return SVN_NO_ERROR;
}


svn_error_t *
svn_utf_cstring_to_utf8_ex2(const char **dest,
                            const char *src,
                            const char *frompage,
                            apr_pool_t *pool)
{
  xlate_handle_node_t *node;
  svn_error_t *err;
  const char *convset_key = get_xlate_key(SVN_APR_UTF8_CHARSET, frompage,
                                          pool);

  SVN_ERR(get_xlate_handle_node(&node, SVN_APR_UTF8_CHARSET, frompage,
                                convset_key, pool));
  err = convert_cstring(dest, src, node, pool);
  put_xlate_handle_node(node, convset_key, pool);
  SVN_ERR(err);
  SVN_ERR(check_cstring_utf8(*dest, pool));

  return SVN_NO_ERROR;
}


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)
{
  return svn_utf_cstring_to_utf8_ex2(dest, src, frompage, pool);
}


svn_error_t *
svn_utf_stringbuf_from_utf8(svn_stringbuf_t **dest,
                            const svn_stringbuf_t *src,
                            apr_pool_t *pool)
{
  xlate_handle_node_t *node;
  svn_error_t *err;

  SVN_ERR(get_uton_xlate_handle_node(&node, pool));

  if (node->handle)
    {
      err = check_utf8(src->data, src->len, pool);
      if (! err)
        err = convert_to_stringbuf(node, src->data, src->len, dest, pool);
    }
  else
    {
      err = check_non_ascii(src->data, src->len, pool);
      if (! err)
        *dest = svn_stringbuf_dup(src, pool);
    }

  put_xlate_handle_node(node, SVN_UTF_UTON_XLATE_HANDLE, pool);

  return err;
}


svn_error_t *
svn_utf_string_from_utf8(const svn_string_t **dest,
                         const svn_string_t *src,
                         apr_pool_t *pool)
{
  svn_stringbuf_t *dbuf;
  xlate_handle_node_t *node;
  svn_error_t *err;

  SVN_ERR(get_uton_xlate_handle_node(&node, pool));

  if (node->handle)
    {
      err = check_utf8(src->data, src->len, pool);
      if (! err)
        err = convert_to_stringbuf(node, src->data, src->len,
                                   &dbuf, pool);
      if (! err)
        *dest = svn_string_create_from_buf(dbuf, pool);
    }
  else
    {
      err = check_non_ascii(src->data, src->len, pool);
      if (! err)
        *dest = svn_string_dup(src, pool);
    }

  put_xlate_handle_node(node, SVN_UTF_UTON_XLATE_HANDLE, pool);

  return err;
}


svn_error_t *
svn_utf_cstring_from_utf8(const char **dest,
                          const char *src,
                          apr_pool_t *pool)
{
  xlate_handle_node_t *node;
  svn_error_t *err;

  SVN_ERR(check_utf8(src, strlen(src), pool));

  SVN_ERR(get_uton_xlate_handle_node(&node, pool));
  err = convert_cstring(dest, src, node, pool);
  put_xlate_handle_node(node, SVN_UTF_UTON_XLATE_HANDLE, pool);

  return err;
}


svn_error_t *
svn_utf_cstring_from_utf8_ex2(const char **dest,
                              const char *src,
                              const char *topage,
                              apr_pool_t *pool)
{
  xlate_handle_node_t *node;
  svn_error_t *err;
  const char *convset_key = get_xlate_key(topage, SVN_APR_UTF8_CHARSET,
                                          pool);

  SVN_ERR(check_utf8(src, strlen(src), pool));

  SVN_ERR(get_xlate_handle_node(&node, topage, SVN_APR_UTF8_CHARSET,
                                convset_key, pool));
  err = convert_cstring(dest, src, node, pool);
  put_xlate_handle_node(node, convset_key, pool);

  return err;
}


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 svn_utf_cstring_from_utf8_ex2(dest, src, topage, pool);
}


const char *
svn_utf__cstring_from_utf8_fuzzy(const char *src,
                                 apr_pool_t *pool,
                                 svn_error_t *(*convert_from_utf8)
                                 (const char **, const char *, apr_pool_t *))
{
  const char *escaped, *converted;
  svn_error_t *err;

  escaped = fuzzy_escape(src, strlen(src), pool);

  /* Okay, now we have a *new* UTF-8 string, one that's guaranteed to
     contain only 7-bit bytes :-).  Recode to native... */
  err = convert_from_utf8(((const char **) &converted), escaped, pool);

  if (err)
    {
      svn_error_clear(err);
      return escaped;
    }
  else
    return converted;

  /* ### Check the client locale, maybe we can avoid that second
   * conversion!  See Ulrich Drepper's patch at
   * http://subversion.tigris.org/issues/show_bug.cgi?id=807.
   */
}


const char *
svn_utf_cstring_from_utf8_fuzzy(const char *src,
                                apr_pool_t *pool)
{
  return svn_utf__cstring_from_utf8_fuzzy(src, pool,
                                          svn_utf_cstring_from_utf8);
}


svn_error_t *
svn_utf_cstring_from_utf8_stringbuf(const char **dest,
                                    const svn_stringbuf_t *src,
                                    apr_pool_t *pool)
{
  svn_stringbuf_t *destbuf;

  SVN_ERR(svn_utf_stringbuf_from_utf8(&destbuf, src, pool));
  *dest = destbuf->data;

  return SVN_NO_ERROR;
}


svn_error_t *
svn_utf_cstring_from_utf8_string(const char **dest,
                                 const svn_string_t *src,
                                 apr_pool_t *pool)
{
  svn_stringbuf_t *dbuf;
  xlate_handle_node_t *node;
  svn_error_t *err;

  SVN_ERR(get_uton_xlate_handle_node(&node, pool));

  if (node->handle)
    {
      err = check_utf8(src->data, src->len, pool);
      if (! err)
        err = convert_to_stringbuf(node, src->data, src->len,
                                   &dbuf, pool);
      if (! err)
        *dest = dbuf->data;
    }
  else
    {
      err = check_non_ascii(src->data, src->len, pool);
      if (! err)
        *dest = apr_pstrmemdup(pool, src->data, src->len);
    }

  put_xlate_handle_node(node, SVN_UTF_UTON_XLATE_HANDLE, pool);

  return err;
}