80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* Copyright (C) 2022 June McEnroe <june@causal.agency>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* Additional permission under GNU GPL version 3 section 7:
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*
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* If you modify this Program, or any covered work, by linking or
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* combining it with OpenSSL (or a modified version of that library),
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* containing parts covered by the terms of the OpenSSL License and the
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* original SSLeay license, the licensors of this Program grant you
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* additional permission to convey the resulting work. Corresponding
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* Source for a non-source form of such a combination shall include the
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* source code for the parts of OpenSSL used as well as that of the
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* covered work.
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*/
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#include <stdbool.h>
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#include <stddef.h>
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enum EditMode {
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EditInsert,
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};
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struct Edit {
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enum EditMode mode;
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wchar_t *buf;
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size_t pos;
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size_t len;
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size_t cap;
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struct Edit *cut;
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};
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enum EditFn {
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EditHead,
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EditTail,
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EditPrev,
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EditNext,
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EditPrevWord,
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EditNextWord,
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EditDeleteHead,
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EditDeleteTail,
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EditDeletePrev,
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EditDeleteNext,
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EditDeletePrevWord,
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EditDeleteNextWord,
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EditPaste,
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EditTranspose,
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EditCollapse,
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EditClear,
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};
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// Perform an editing function.
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int editFn(struct Edit *e, enum EditFn fn);
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// Insert a character at the cursor.
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int editInsert(struct Edit *e, wchar_t ch);
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// Convert the buffer to a multi-byte string.
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char *editString(const struct Edit *e, char **buf, size_t *cap, size_t *pos);
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// Reserve a range in the buffer.
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int editReserve(struct Edit *e, size_t index, size_t count);
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// Copy a range of the buffer into e->cut.
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int editCopy(struct Edit *e, size_t index, size_t count);
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// Delete a range from the buffer. If cut is true, copy the deleted portion.
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int editDelete(struct Edit *e, bool cut, size_t index, size_t count);
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