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This change includes many bug fixes, for the NT polyfills, strings,
memory, boot, and math libraries which were discovered by adding more
tools for recreational programming, such as PC emulation. Lemon has also
been vendored because it works so well at parsing languages.
This commit is contained in:
Justine Tunney 2020-09-28 01:13:56 -07:00
parent 416fd86676
commit 23d333c090
201 changed files with 14558 additions and 3082 deletions
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45
examples/kilo.c
View file

@ -243,21 +243,19 @@ fatal:
int editorReadKey(int64_t fd) {
int nread;
char c, seq[3];
while ((nread = read(fd, &c, 1)) == 0) {
}
if (nread == -1) exit(1);
if ((nread = read(fd, &c, 1)) == -1) exit(1);
while (1) {
switch (c) {
case CTRL('J'): /* newline */
return CTRL('M');
case CTRL('['): /* escape sequence */
case CTRL('V'):
return PAGE_DOWN;
case '\e': /* escape sequence */
/* If this is just an ESC, we'll timeout here. */
if (read(fd, seq, 1) == 0) return CTRL('[');
if (read(fd, seq + 1, 1) == 0) return CTRL('[');
/* ESC [ sequences. */
if (seq[0] == '[') {
if (read(fd, seq + 1, 1) == 0) return CTRL('[');
if (seq[1] >= '0' && seq[1] <= '9') {
/* Extended escape, read additional byte. */
if (read(fd, seq + 2, 1) == 0) return CTRL('[');
@ -296,10 +294,11 @@ int editorReadKey(int64_t fd) {
return END_KEY;
}
}
}
/* ESC O sequences. */
else if (seq[0] == 'O') {
} else if (seq[0] == 'v') {
return PAGE_UP;
} else if (seq[0] == 'O') {
if (read(fd, seq + 1, 1) == 0) return CTRL('[');
/* ESC O sequences. */
switch (seq[1]) {
case 'H':
return HOME_KEY;
@ -586,8 +585,9 @@ void editorUpdateRow(erow *row) {
/* Create a version of the row we can directly print on the screen,
* respecting tabs, substituting non printable characters with '?'. */
free(row->render);
for (j = 0; j < row->size; j++)
for (j = 0; j < row->size; j++) {
if (row->chars[j] == CTRL('I')) tabs++;
}
row->render = malloc(row->size + tabs * 8 + nonprint * 9 + 1);
idx = 0;
@ -1200,9 +1200,10 @@ void editorMoveCursor(int key) {
void editorProcessKeypress(int64_t fd) {
/* When the file is modified, requires Ctrl-q to be pressed N times
* before actually quitting. */
int c, times;
static int quit_times;
int c = editorReadKey(fd);
c = editorReadKey(fd);
switch (c) {
case CTRL('M'): /* Enter */
editorInsertNewline();
@ -1271,6 +1272,13 @@ void editorProcessKeypress(int64_t fd) {
break;
}
case CTRL('L'):
times = E.screenrows / 2;
while (times--) editorMoveCursor(c == PAGE_UP ? ARROW_UP : ARROW_DOWN);
times = E.screenrows / 2;
while (times--) editorMoveCursor(c == PAGE_UP ? ARROW_DOWN : ARROW_UP);
break;
case PAGE_UP:
case PAGE_DOWN:
if (c == PAGE_UP && E.cy != 0) {
@ -1278,10 +1286,10 @@ void editorProcessKeypress(int64_t fd) {
} else if (c == PAGE_DOWN && E.cy != E.screenrows - 1) {
E.cy = E.screenrows - 1;
}
{
int times = E.screenrows;
while (times--) editorMoveCursor(c == PAGE_UP ? ARROW_UP : ARROW_DOWN);
}
times = E.screenrows;
while (times--) editorMoveCursor(c == PAGE_UP ? ARROW_UP : ARROW_DOWN);
times = E.screenrows / 2;
while (times--) editorMoveCursor(c == PAGE_UP ? ARROW_DOWN : ARROW_UP);
break;
case HOME_KEY:
@ -1316,9 +1324,6 @@ void editorProcessKeypress(int64_t fd) {
editorMoveCursor(c);
break;
case CTRL('L'): /* ctrl+l, clear screen */
/* Just refresht the line as side effect. */
break;
case CTRL('['):
/* Nothing to do for ESC in this mode. */
break;