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performance improvements

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Kyle Isom
2025-11-26 16:00:15 -08:00
parent 2c3b2ae0f0
commit 64647f77b0
1 changed files with 19 additions and 1 deletions
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20
main.c
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@@ -212,6 +212,7 @@ void editor_find_callback(char *query, int16_t c);
void editor_find(void); void editor_find(void);
char *editor_prompt(char*, void (*cb)(char*, int16_t)); char *editor_prompt(char*, void (*cb)(char*, int16_t));
void editor_openfile(void); void editor_openfile(void);
int first_nonwhitespace(struct erow *row);
void move_cursor_once(int16_t c, int interactive); void move_cursor_once(int16_t c, int interactive);
void move_cursor(int16_t c, int interactive); void move_cursor(int16_t c, int interactive);
void uarg_start(void); void uarg_start(void);
@@ -507,6 +508,12 @@ erow_render_to_cursor(struct erow *row, int cx)
continue; continue;
} }
if (b < 0x80) {
rx++;
j++;
continue;
}
size_t rem = (size_t)row->size - j; size_t rem = (size_t)row->size - j;
size_t n = mbrtowc(&wc, &row->line[j], rem, &st); size_t n = mbrtowc(&wc, &row->line[j], rem, &st);
@@ -560,6 +567,9 @@ erow_cursor_to_render(struct erow *row, int rx)
} else if (b < 0x20) { } else if (b < 0x20) {
w = 3; /* "\\xx" */ w = 3; /* "\\xx" */
adv = 1; adv = 1;
} else if (b < 0x80) {
w = 1;
adv = 1;
} else { } else {
size_t rem = (size_t)row->size - j; size_t rem = (size_t)row->size - j;
size_t n = mbrtowc(&wc, &row->line[j], rem, &st); size_t n = mbrtowc(&wc, &row->line[j], rem, &st);
@@ -1928,6 +1938,14 @@ first_nonwhitespace(struct erow *row)
} }
while (pos < row->size) { while (pos < row->size) {
if ((unsigned char)row->line[pos] < 0x80) {
if (!isspace((unsigned char)row->line[pos])) {
return pos;
}
pos++;
continue;
}
len = mbrtowc(&wc, &row->line[pos], row->size - pos, &state); len = mbrtowc(&wc, &row->line[pos], row->size - pos, &state);
if (len == (size_t)-1 || len == (size_t)-2) { if (len == (size_t)-1 || len == (size_t)-2) {
break; break;
@@ -2875,7 +2893,7 @@ display_refresh(void)
(editor.rx - editor.coloffs) + 1); (editor.rx - editor.coloffs) + 1);
ab_append(&ab, buf, kstrnlen(buf, 32)); ab_append(&ab, buf, kstrnlen(buf, 32));
/* ab_append(&ab, ESCSEQ "1;2H", 7); */ /* ab_append(&ab, ESCSEQ "1;2H", 7); */
ab_append(&ab, ESCSEQ "?25l", 6); ab_append(&ab, ESCSEQ "?25h", 6);
kwrite(STDOUT_FILENO, ab.b, ab.len); kwrite(STDOUT_FILENO, ab.b, ab.len);
ab_free(&ab); ab_free(&ab);