linenoise: Ctrl-V verbatim insert.

* linenoise/linenoise.c (enum key_action): New enum
constant, CTRL_V.
(edit): Implement Ctrl-V.

1 files changed, 12 insertions, 0 deletions

diff --git a/linenoise/linenoise.c b/linenoise/linenoise.c
index b43a15a0..b94a9a6d 100644
--- a/linenoise/linenoise.c
+++ b/linenoise/linenoise.c
@@ -171,6 +171,7 @@ enum key_action {
     CTRL_P = 16,
     CTRL_T = 20,
     CTRL_U = 21,
+    CTRL_V = 22,
     CTRL_W = 23,
     ESC = 27,
     BACKSPACE =  127
@@ -777,6 +778,8 @@ static void edit_delete_prev_word(struct lino_state *l) {
  * The function returns the length of the current buffer. */
 static int edit(lino_t *l, const char *prompt)
 {
+    int verbatim = 0;
+
     /* Populate the linenoise state that we pass to functions implementing
      * specific editing functionalities. */
     l->prompt = prompt;
@@ -804,6 +807,12 @@ static int edit(lino_t *l, const char *prompt)
         if (nread <= 0)
             return l->len ? (int) l->len : -1;
 
+        if (verbatim) {
+            if (edit_insert(l,c)) return -1;
+            verbatim = 0;
+            continue;
+        }
+
         /* Only autocomplete when the callback is set. It returns < 0 when
          * there was an error reading from fd. Otherwise it will return the
          * character that should be handled next. */
@@ -928,6 +937,9 @@ static int edit(lino_t *l, const char *prompt)
             l->dpos = l->dlen = 0;
             refresh_line(l);
             break;
+        case CTRL_V: /* insert next char verbatim */
+            verbatim = 1;
+            break;
         case CTRL_K: /* delete from current to end of line. */
             l->data[l->dpos] = '\0';
             l->dlen = l->dpos;