Kyle Isom
a9bcb0d36b
+ editor removes per-buffer fields. + switching from internal use of 'int' to 'size_t'. + deleting old code + double checking relevancy of comments. A lot has changed in 5 years, even more so in the past week. + fixing a few vestigal memory errors from the overhaul. + fixing search behavior
110 lines
1.8 KiB
C
110 lines
1.8 KiB
C
/* editor.c - editor-wide state and functions */
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include "abuf.h"
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#include "buffer.h"
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#include "core.h"
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#include "editor.h"
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#include "term.h"
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/*
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* Global editor instance
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*/
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struct editor editor = {
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.cols = 0,
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.rows = 0,
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.mode = 0,
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.killring = NULL,
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.kill = 0,
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.no_kill = 0,
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.dirtyex = 0,
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.uarg = 0,
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.ucount = 0,
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.msgtm = 0,
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.buffers = NULL,
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.bufcount = 0,
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.curbuf = 0,
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.bufcap = 0,
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};
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void
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editor_set_status(const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vsnprintf(editor.msg, sizeof(editor.msg), fmt, ap);
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va_end(ap);
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editor.msgtm = time(NULL);
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}
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void
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init_editor(void)
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{
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editor.cols = 0;
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editor.rows = 0;
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if (get_winsz(&editor.rows, &editor.cols) == -1) {
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die("can't get window size");
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}
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editor.rows--; /* status bar */
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editor.rows--; /* message line */
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/* don't clear out the kill ring:
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* killing / yanking across files is helpful, and killring
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* is initialized to NULL at program start.
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*/
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editor.kill = 0;
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editor.no_kill = 0;
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editor.msg[0] = '\0';
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editor.msgtm = 0;
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/* initialize buffer system on first init */
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if (editor.buffers == NULL && editor.bufcount == 0) {
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editor.bufcap = 0;
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buffers_init();
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}
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}
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void
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reset_editor(void)
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{
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/* Reset the current buffer's contents/state. */
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buffer *b = buffer_current();
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if (b == NULL) {
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return;
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}
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if (b->row) {
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for (size_t i = 0; i < b->nrows; i++) {
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ab_free(&b->row[i]);
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}
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free(b->row);
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}
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b->row = NULL;
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b->nrows = 0;
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b->rowoffs = 0;
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b->coloffs = 0;
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b->rx = 0;
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b->curx = 0;
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b->cury = 0;
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if (b->filename) {
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free(b->filename);
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b->filename = NULL;
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}
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b->dirty = 0;
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b->mark_set = 0;
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b->mark_curx = 0;
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b->mark_cury = 0;
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}
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