/* Iterating through multibyte strings: macros for multi-byte encodings.
- Copyright (C) 2001, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2001, 2005, 2007 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
+ This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>. */
advances the iterator by one multibyte character.
mbi_cur (iter)
- returns the current multibyte character, of type MB_CHAR. All the macros
- defined in mbchar_multi.h can be used on it.
+ returns the current multibyte character, of type mbchar_t. All the
+ macros defined in mbchar.h can be used on it.
mbi_cur_ptr (iter)
return a pointer to the beginning of the current multibyte character.
mbi_reloc (iter, ptrdiff)
relocates iterator when the string is moved by ptrdiff bytes.
+ mbi_copy (&destiter, &srciter)
+ copies srciter to destiter.
+
Here are the function prototypes of the macros.
extern void mbi_init (mbi_iterator_t iter,
extern mbchar_t mbi_cur (mbi_iterator_t iter);
extern const char * mbi_cur_ptr (mbi_iterator_t iter);
extern void mbi_reloc (mbi_iterator_t iter, ptrdiff_t ptrdiff);
+ extern void mbi_copy (mbi_iterator_t *new, const mbi_iterator_t *old);
*/
#ifndef _MBITER_H
#include <assert.h>
#include <stdbool.h>
+#include <stddef.h>
+#include <string.h>
/* Tru64 with Desktop Toolkit C has a bug: <stdio.h> must be included before
<wchar.h>.
iter->limit += ptrdiff;
}
+static inline void
+mbiter_multi_copy (struct mbiter_multi *new_iter, const struct mbiter_multi *old_iter)
+{
+ new_iter->limit = old_iter->limit;
+ if ((new_iter->in_shift = old_iter->in_shift))
+ memcpy (&new_iter->state, &old_iter->state, sizeof (mbstate_t));
+ else
+ memset (&new_iter->state, 0, sizeof (mbstate_t));
+ new_iter->next_done = old_iter->next_done;
+ mb_copy (&new_iter->cur, &old_iter->cur);
+}
+
/* Iteration macros. */
typedef struct mbiter_multi mbi_iterator_t;
#define mbi_init(iter, startptr, length) \
/* Relocation. */
#define mbi_reloc(iter, ptrdiff) mbiter_multi_reloc (&iter, ptrdiff)
+/* Copying an iterator. */
+#define mbi_copy mbiter_multi_copy
+
#endif /* _MBITER_H */