lib: add escapeCodeTimeout as an option to createInterface

PR-URL: https://github.com/nodejs/node/pull/19780
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>

1 files changed, 15 insertions, 2 deletions

diff --git a/lib/readline.js b/lib/readline.js
index cd8240bc26..4eeefb227c 100644
--- a/lib/readline.js
+++ b/lib/readline.js
@@ -82,6 +82,7 @@ function Interface(input, output, completer, terminal) {
   this.isCompletionEnabled = true;
   this._sawKeyPress = false;
   this._previousKey = null;
+  this.escapeCodeTimeout = ESCAPE_CODE_TIMEOUT;
 
   EventEmitter.call(this);
   var historySize;
@@ -99,6 +100,16 @@ function Interface(input, output, completer, terminal) {
     if (input.prompt !== undefined) {
       prompt = input.prompt;
     }
+    if (input.escapeCodeTimeout !== undefined) {
+      if (Number.isFinite(input.escapeCodeTimeout)) {
+        this.escapeCodeTimeout = input.escapeCodeTimeout;
+      } else {
+        throw new ERR_INVALID_OPT_VALUE(
+          'escapeCodeTimeout',
+          this.escapeCodeTimeout
+        );
+      }
+    }
     crlfDelay = input.crlfDelay;
     input = input.input;
   }
@@ -131,7 +142,6 @@ function Interface(input, output, completer, terminal) {
   this.removeHistoryDuplicates = !!removeHistoryDuplicates;
   this.crlfDelay = crlfDelay ?
     Math.max(kMincrlfDelay, crlfDelay) : kMincrlfDelay;
-
   // Check arity, 2 - for async, 1 for sync
   if (typeof completer === 'function') {
     this.completer = completer.length === 2 ?
@@ -1020,7 +1030,10 @@ function emitKeypressEvents(stream, iface) {
             stream[ESCAPE_DECODER].next(r[i]);
             // Escape letter at the tail position
             if (r[i] === kEscape && i + 1 === r.length) {
-              timeoutId = setTimeout(escapeCodeTimeout, ESCAPE_CODE_TIMEOUT);
+              timeoutId = setTimeout(
+                escapeCodeTimeout,
+                iface ? iface.escapeCodeTimeout : ESCAPE_CODE_TIMEOUT
+              );
             }
           } catch (err) {
             // if the generator throws (it could happen in the `keypress`