mirror of
https://github.com/janet-lang/janet
synced 2024-11-25 01:37:19 +00:00
Simple fix for end of file in getline. Some code changes in getline as well.
This commit is contained in:
parent
58d81d44f9
commit
7ec2efcf6d
@ -35,6 +35,9 @@ static void simpleline(DstBuffer *buffer) {
|
||||
char c;
|
||||
for (;;) {
|
||||
c = fgetc(stdin);
|
||||
if (feof(stdin) || c < 0) {
|
||||
break;
|
||||
}
|
||||
dst_buffer_push_u8(buffer, (uint8_t) c);
|
||||
if (c == '\n') break;
|
||||
}
|
||||
@ -92,42 +95,27 @@ static char **history = NULL;
|
||||
static int historyi = 0;
|
||||
static struct termios termios_start;
|
||||
|
||||
/* Key codes */
|
||||
enum KEY_ACTION {
|
||||
KEY_NULL = 0, /* NULL */
|
||||
CTRL_A = 1, /* Ctrl+a */
|
||||
CTRL_B = 2, /* Ctrl-b */
|
||||
CTRL_C = 3, /* Ctrl-c */
|
||||
CTRL_D = 4, /* Ctrl-d */
|
||||
CTRL_E = 5, /* Ctrl-e */
|
||||
CTRL_F = 6, /* Ctrl-f */
|
||||
CTRL_H = 8, /* Ctrl-h */
|
||||
TAB = 9, /* Tab */
|
||||
CTRL_K = 11, /* Ctrl+k */
|
||||
CTRL_L = 12, /* Ctrl+l */
|
||||
ENTER = 13, /* Enter */
|
||||
CTRL_N = 14, /* Ctrl-n */
|
||||
CTRL_P = 16, /* Ctrl-p */
|
||||
CTRL_T = 20, /* Ctrl-t */
|
||||
CTRL_U = 21, /* Ctrl+u */
|
||||
CTRL_W = 23, /* Ctrl+w */
|
||||
ESC = 27, /* Escape */
|
||||
BACKSPACE = 127 /* Backspace */
|
||||
/* Unsupported terminal list from linenoise */
|
||||
static const char *badterms[] = {
|
||||
"cons25",
|
||||
"dumb",
|
||||
"emacs",
|
||||
NULL
|
||||
};
|
||||
|
||||
/* Ansi terminal raw mode */
|
||||
static int rawmode() {
|
||||
struct termios raw;
|
||||
struct termios t;
|
||||
if (!isatty(STDIN_FILENO)) goto fatal;
|
||||
if (tcgetattr(STDIN_FILENO, &termios_start) == -1) goto fatal;
|
||||
raw = termios_start;
|
||||
raw.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
|
||||
raw.c_oflag &= ~(OPOST);
|
||||
raw.c_cflag |= (CS8);
|
||||
raw.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
|
||||
raw.c_cc[VMIN] = 1;
|
||||
raw.c_cc[VTIME] = 0;
|
||||
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &raw) < 0) goto fatal;
|
||||
t = termios_start;
|
||||
t.c_iflag &= ~(BRKINT | ICRNL | INPCK | ISTRIP | IXON);
|
||||
t.c_oflag &= ~(OPOST);
|
||||
t.c_cflag |= (CS8);
|
||||
t.c_lflag &= ~(ECHO | ICANON | IEXTEN | ISIG);
|
||||
t.c_cc[VMIN] = 1;
|
||||
t.c_cc[VTIME] = 0;
|
||||
if (tcsetattr(STDIN_FILENO, TCSAFLUSH, &t) < 0) goto fatal;
|
||||
israwmode = 1;
|
||||
return 0;
|
||||
fatal:
|
||||
@ -152,13 +140,11 @@ static int curpos() {
|
||||
i++;
|
||||
}
|
||||
buf[i] = '\0';
|
||||
if (buf[0] != ESC || buf[1] != '[') return -1;
|
||||
if (buf[0] != 27 || buf[1] != '[') return -1;
|
||||
if (sscanf(buf + 2, "%d;%d", &rows, &cols) != 2) return -1;
|
||||
return cols;
|
||||
}
|
||||
|
||||
/* Try to get the number of columns in the current terminal, or assume 80
|
||||
* if it fails. */
|
||||
static int getcols() {
|
||||
struct winsize ws;
|
||||
if (ioctl(1, TIOCGWINSZ, &ws) == -1 || ws.ws_col == 0) {
|
||||
@ -181,12 +167,10 @@ failed:
|
||||
return 80;
|
||||
}
|
||||
|
||||
/* Clear the screen. Used to handle ctrl+l */
|
||||
static void clear() {
|
||||
if (write(STDOUT_FILENO,"\x1b[H\x1b[2J",7) <= 0) {}
|
||||
}
|
||||
|
||||
/* Refresh the line */
|
||||
static void refresh() {
|
||||
char seq[64];
|
||||
DstBuffer b;
|
||||
@ -325,31 +309,41 @@ static int line() {
|
||||
if (nread <= 0) return -1;
|
||||
|
||||
switch(c) {
|
||||
case ENTER: /* enter */
|
||||
default:
|
||||
if (insert(c)) return -1;
|
||||
break;
|
||||
case 13: /* enter */
|
||||
return 0;
|
||||
case CTRL_C: /* ctrl-c */
|
||||
case 3: /* ctrl-c */
|
||||
errno = EAGAIN;
|
||||
return -1;
|
||||
case BACKSPACE: /* backspace */
|
||||
case 127: /* backspace */
|
||||
case 8: /* ctrl-h */
|
||||
kbackspace();
|
||||
break;
|
||||
case CTRL_D: /* ctrl-d, eof */
|
||||
case 4: /* ctrl-d, eof */
|
||||
return -1;
|
||||
case CTRL_B: /* ctrl-b */
|
||||
case 2: /* ctrl-b */
|
||||
kleft();
|
||||
break;
|
||||
case CTRL_F: /* ctrl-f */
|
||||
case 6: /* ctrl-f */
|
||||
kright();
|
||||
break;
|
||||
case ESC: /* escape sequence */
|
||||
case 21:
|
||||
buf[0] = '\0';
|
||||
pos = len = 0;
|
||||
refresh();
|
||||
break;
|
||||
case 12:
|
||||
clear();
|
||||
refresh();
|
||||
break;
|
||||
case 27: /* escape sequence */
|
||||
/* Read the next two bytes representing the escape sequence.
|
||||
* Use two calls to handle slow terminals returning the two
|
||||
* chars at different times. */
|
||||
if (read(STDIN_FILENO, seq, 1) == -1) break;
|
||||
if (read(STDIN_FILENO, seq + 1 ,1) == -1) break;
|
||||
|
||||
/* ESC [ sequences. */
|
||||
if (read(STDIN_FILENO, seq + 1, 1) == -1) break;
|
||||
if (seq[0] == '[') {
|
||||
if (seq[1] >= '0' && seq[1] <= '9') {
|
||||
/* Extended escape, read additional byte. */
|
||||
@ -362,6 +356,8 @@ static int line() {
|
||||
}
|
||||
} else {
|
||||
switch (seq[1]) {
|
||||
default:
|
||||
break;
|
||||
case 'A':
|
||||
historymove(1);
|
||||
break;
|
||||
@ -384,10 +380,7 @@ static int line() {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/* ESC O sequences. */
|
||||
else if (seq[0] == 'O') {
|
||||
} else if (seq[0] == 'O') {
|
||||
switch (seq[1]) {
|
||||
default:
|
||||
break;
|
||||
@ -402,18 +395,6 @@ static int line() {
|
||||
}
|
||||
}
|
||||
break;
|
||||
default:
|
||||
if (insert(c)) return -1;
|
||||
break;
|
||||
case CTRL_U:
|
||||
buf[0] = '\0';
|
||||
pos = len = 0;
|
||||
refresh();
|
||||
break;
|
||||
case CTRL_L:
|
||||
clear();
|
||||
refresh();
|
||||
break;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
@ -424,13 +405,30 @@ void dst_line_init() {
|
||||
}
|
||||
|
||||
void dst_line_deinit() {
|
||||
int i;
|
||||
norawmode();
|
||||
for (i = 0; i < dst_v_count(history); i++)
|
||||
free(history[i]);
|
||||
dst_v_free(history);
|
||||
historyi = 0;
|
||||
}
|
||||
|
||||
static int checktermsupport() {
|
||||
const char *t = getenv("TERM");
|
||||
int i;
|
||||
if (!t) return 1;
|
||||
for (i = 0; badterms[i]; i++)
|
||||
if (!strcasecmp(t, badterms[i])) return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
void dst_line_get(DstBuffer *buffer) {
|
||||
buffer->count = 0;
|
||||
historyi = 0;
|
||||
if (!isatty(STDIN_FILENO) || !checktermsupport()) {
|
||||
simpleline(buffer);
|
||||
return;
|
||||
}
|
||||
if (rawmode()) {
|
||||
simpleline(buffer);
|
||||
return;
|
||||
@ -446,7 +444,6 @@ void dst_line_get(DstBuffer *buffer) {
|
||||
memcpy(buffer->data, buf, len);
|
||||
buffer->data[len] = '\n';
|
||||
buffer->count = len + 1;
|
||||
|
||||
replacehistory();
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user