include/mbsedit.h

   1 /*
   2  * SPDX-License-Identifier: LGPL-2.1-or-later
   3  *
   4  * This file may be distributed under the terms of the
   5  * GNU Lesser General Public License.
   6  */
   7 #ifndef UTIL_LINUX_MBSEDIT_H
   8 # define UTIL_LINUX_MBSEDIT_H
   9
  10 #include "mbsalign.h"
  11 #include "widechar.h"
  12
  13 struct mbs_editor {
  14         char    *buf;           /* buffer */
  15         size_t  max_bytes;      /* size of the buffer */
  16         size_t  max_cells;      /* maximal allowed number of cells */
  17         size_t  cur_cells;      /* number of cells to print the buffer */
  18         size_t  cur_bytes;      /* number of chars in bytes */
  19         size_t  cursor;         /* cursor position in bytes */
  20         size_t  cursor_cells;   /* cursor position in cells */
  21 };
  22
  23 enum {
  24         MBS_EDIT_LEFT,
  25         MBS_EDIT_RIGHT,
  26         MBS_EDIT_END,
  27         MBS_EDIT_HOME
  28 };
  29
  30 struct mbs_editor *mbs_new_edit(char *buf, size_t bufsz, size_t ncells);
  31 char *mbs_free_edit(struct mbs_editor *edit);
  32
  33 int mbs_edit_goto(struct mbs_editor *edit, int where);
  34 int mbs_edit_delete(struct mbs_editor *edit);
  35 int mbs_edit_backspace(struct mbs_editor *edit);
  36 int mbs_edit_insert(struct mbs_editor *edit, wint_t c);
  37
  38 #endif /* UTIL_LINUX_MBSEDIT_H */