Commit 49635f1ccaf5d6dd159fab1f870f7d026c105183
2014-01-16T22:26:24
Add the key enumeration
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diff --git a/linenoise.c b/linenoise.c
index a5c5ee7..af90699 100644
--- a/linenoise.c
+++ b/linenoise.c
@@ -136,6 +136,33 @@ struct linenoiseState {
int history_index; /* The history index we are currently editing. */
};
+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 */
+ UP_ARROW = 65, /* Last character of up arrow */
+ DOWN_ARROW = 66, /* Last character of down arrow */
+ RIGHT_ARROW = 67, /* Last character of right arrow */
+ LEFT_ARROW = 68, /* Last character of left arrow */
+ ARROW_PREFIX = 91, /* Any ARROW = ESC + '[' + 'A' ~ 'D' */
+ BACKSPACE = 127 /* Backspace */
+};
+
static void linenoiseAtExit(void);
int linenoiseHistoryAdd(const char *line);
static void refreshLine(struct linenoiseState *l);
@@ -662,18 +689,18 @@ static int linenoiseEdit(int fd, char *buf, size_t buflen, const char *prompt)
}
switch(c) {
- case 13: /* enter */
+ case ENTER: /* enter */
history_len--;
free(history[history_len]);
return (int)l.len;
- case 3: /* ctrl-c */
+ case CTRL_C: /* ctrl-c */
errno = EAGAIN;
return -1;
- case 127: /* backspace */
+ case BACKSPACE: /* backspace */
case 8: /* ctrl-h */
linenoiseEditBackspace(&l);
break;
- case 4: /* ctrl-d, remove char at right of cursor, or of the
+ case CTRL_D: /* ctrl-d, remove char at right of cursor, or of the
line is empty, act as end-of-file. */
if (l.len > 0) {
linenoiseEditDelete(&l);
@@ -683,7 +710,7 @@ static int linenoiseEdit(int fd, char *buf, size_t buflen, const char *prompt)
return -1;
}
break;
- case 20: /* ctrl-t, swaps current character with previous. */
+ case CTRL_T: /* ctrl-t, swaps current character with previous. */
if (l.pos > 0 && l.pos < l.len) {
int aux = buf[l.pos-1];
buf[l.pos-1] = buf[l.pos];
@@ -692,19 +719,19 @@ static int linenoiseEdit(int fd, char *buf, size_t buflen, const char *prompt)
refreshLine(&l);
}
break;
- case 2: /* ctrl-b */
+ case CTRL_B: /* ctrl-b */
linenoiseEditMoveLeft(&l);
break;
- case 6: /* ctrl-f */
+ case CTRL_F: /* ctrl-f */
linenoiseEditMoveRight(&l);
break;
- case 16: /* ctrl-p */
+ case CTRL_P: /* ctrl-p */
linenoiseEditHistoryNext(&l, LINENOISE_HISTORY_PREV);
break;
- case 14: /* ctrl-n */
+ case CTRL_N: /* ctrl-n */
linenoiseEditHistoryNext(&l, LINENOISE_HISTORY_NEXT);
break;
- case 27: /* escape sequence */
+ case ESC: /* escape sequence */
/* Read the next two bytes representing the escape sequence. */
if (read(fd,seq,2) == -1) break;
@@ -731,29 +758,29 @@ static int linenoiseEdit(int fd, char *buf, size_t buflen, const char *prompt)
default:
if (linenoiseEditInsert(&l,c)) return -1;
break;
- case 21: /* Ctrl+u, delete the whole line. */
+ case CTRL_U: /* Ctrl+u, delete the whole line. */
buf[0] = '\0';
l.pos = l.len = 0;
refreshLine(&l);
break;
- case 11: /* Ctrl+k, delete from current to end of line. */
+ case CTRL_K: /* Ctrl+k, delete from current to end of line. */
buf[l.pos] = '\0';
l.len = l.pos;
refreshLine(&l);
break;
- case 1: /* Ctrl+a, go to the start of the line */
+ case CTRL_A: /* Ctrl+a, go to the start of the line */
l.pos = 0;
refreshLine(&l);
break;
- case 5: /* ctrl+e, go to the end of the line */
+ case CTRL_E: /* ctrl+e, go to the end of the line */
l.pos = l.len;
refreshLine(&l);
break;
- case 12: /* ctrl+l, clear screen */
+ case CTRL_L: /* ctrl+l, clear screen */
linenoiseClearScreen();
refreshLine(&l);
break;
- case 23: /* ctrl+w, delete previous word */
+ case CTRL_W: /* ctrl+w, delete previous word */
linenoiseEditDeletePrevWord(&l);
break;
}