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/* Copyright (C) 2022 June McEnroe <june@causal.agency>
*
* 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 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
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* 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, see <https://www.gnu.org/licenses/>.
*
* Additional permission under GNU GPL version 3 section 7:
*
* If you modify this Program, or any covered work, by linking or
* combining it with OpenSSL (or a modified version of that library),
* containing parts covered by the terms of the OpenSSL License and the
* original SSLeay license, the licensors of this Program grant you
* additional permission to convey the resulting work. Corresponding
* Source for a non-source form of such a combination shall include the
* source code for the parts of OpenSSL used as well as that of the
* covered work.
*/
#include <stdbool.h>
#include <stddef.h>
enum EditMode {
EditEmacs,
};
struct Edit {
enum EditMode mode;
wchar_t *buf;
size_t pos;
size_t len;
size_t cap;
struct {
wchar_t *buf;
size_t len;
} cut;
};
enum EditFn {
EditHead,
EditTail,
EditPrev,
EditNext,
EditPrevWord,
EditNextWord,
EditDeleteHead,
EditDeleteTail,
EditDeletePrev,
EditDeleteNext,
EditDeletePrevWord,
EditDeleteNextWord,
EditPaste,
EditTranspose,
EditCollapse,
EditClear,
};
// Perform an editing function.
int editFn(struct Edit *e, enum EditFn fn);
// Perform a vi-mode editing function.
int editVi(struct Edit *e, wchar_t ch);
// Insert a character at the cursor.
int editInsert(struct Edit *e, wchar_t ch);
// Convert the buffer to a multi-byte string.
char *editString(const struct Edit *e, char **buf, size_t *cap, size_t *pos);
// Free all buffers.
void editFree(struct Edit *e);
// Reserve a range in the buffer.
int editReserve(struct Edit *e, size_t index, size_t count);
// Copy a range of the buffer into e->cut.
int editCopy(struct Edit *e, size_t index, size_t count);
// Delete a range from the buffer. If cut is true, copy the deleted portion.
int editDelete(struct Edit *e, bool cut, size_t index, size_t count);
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