126 lines
2.1 KiB
C
126 lines
2.1 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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.curx = 0,
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.cury = 0,
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.rx = 0,
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.mode = 0,
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.nrows = 0,
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.rowoffs = 0,
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.coloffs = 0,
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.row = NULL,
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.killring = NULL,
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.kill = 0,
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.no_kill = 0,
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.filename = NULL,
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.dirty = 0,
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.dirtyex = 0,
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.mark_set = 0,
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.mark_curx = 0,
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.mark_cury = 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 = -1,
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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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editor.curx = editor.cury = 0;
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editor.rx = 0;
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editor.nrows = 0;
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editor.rowoffs = editor.coloffs = 0;
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editor.row = NULL;
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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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editor.dirty = 0;
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editor.mark_set = 0;
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editor.mark_cury = editor.mark_curx = 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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/* Clear current working set. Notably, does not reset terminal
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* or buffers list. */
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for (int i = 0; i < editor.nrows; i++) {
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ab_free(&editor.row[i]);
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}
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free(editor.row);
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editor.row = NULL;
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editor.nrows = 0;
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editor.rowoffs = editor.coloffs = 0;
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editor.curx = editor.cury = 0;
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editor.rx = 0;
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if (editor.filename != NULL) {
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free(editor.filename);
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editor.filename = NULL;
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}
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editor.dirty = 0;
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editor.mark_set = 0;
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editor.mark_cury = editor.mark_curx = 0;
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}
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