From 2ddfe33bb3fbd944ff3ec32232c2ad9ee0998a87 Mon Sep 17 00:00:00 2001
From: Lukas Stadler <lukas.stadler@oracle.com>
Date: Fri, 4 Aug 2017 17:01:39 +0200
Subject: [PATCH] handle single-element candidates in command line completion
---
.../com/oracle/truffle/r/launcher/JLineConsoleCompleter.java | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/com.oracle.truffle.r.launcher/src/com/oracle/truffle/r/launcher/JLineConsoleCompleter.java b/com.oracle.truffle.r.launcher/src/com/oracle/truffle/r/launcher/JLineConsoleCompleter.java
index 12888c364f..dc79ee71d2 100644
--- a/com.oracle.truffle.r.launcher/src/com/oracle/truffle/r/launcher/JLineConsoleCompleter.java
+++ b/com.oracle.truffle.r.launcher/src/com/oracle/truffle/r/launcher/JLineConsoleCompleter.java
@@ -79,7 +79,10 @@ public class JLineConsoleCompleter implements Completer {
if (completionEnv.hasMember("comps")) {
Value completions = completionEnv.getMember("comps");
- if (completions.hasArrayElements()) {
+ if (completions.isString()) {
+ candidates.add(completions.asString());
+ return start;
+ } else if (completions.hasArrayElements()) {
long length = completions.getArraySize();
List<String> result = new ArrayList<>((int) length);
for (int i = 0; i < length; i++) {
--
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