[#587] Enhance picocli-shell-jline3 example: update RELEASE-NOTES and README

RELEASE-NOTES.md

@@ -137,6 +137,7 @@ Support was added for the following environment variables to control enabling AN
 
 ## <a name="3.9.0-fixes"></a> Fixed issues
 - [#574] Add `picocli-shell-jline3` module. Thanks to [mattirn](https://github.com/mattirn) for the pull request.
+- [#587] Enhance `picocli-shell-jline3` example by using JLine's `DefaultParser` to split lines into arguments. Thanks to [mattirn](https://github.com/mattirn) for the pull request.
 - [#567] Usage message customization API initial implementation. Thanks to [Christian Helmer](https://github.com/SysLord) for the pull request.
 - [#530] Added API for easily customizing the usage help message. Thanks to [stechio](https://github.com/stechio) for raising the request and productive discussions.
 - [#569] Facilitate customization of the synopsis: split `Help.detailedSynopsis()` into protected methods.

picocli-shell-jline3/README.md

@@ -44,6 +44,9 @@ import java.util.concurrent.TimeUnit;
 import org.jline.reader.Completer;
 import org.jline.reader.LineReader;
 import org.jline.reader.LineReaderBuilder;
+import org.jline.reader.EndOfFileException;
+import org.jline.reader.UserInterruptException;
+import org.jline.reader.ParsedLine;
 import org.jline.reader.impl.DefaultParser;
 import org.jline.reader.impl.LineReaderImpl;
 import org.jline.terminal.TerminalBuilder;
@@ -143,15 +146,17 @@ public class Example {
 
             // start the shell and process input until the user quits with Ctl-D
             String line;
-            while (true) {    
+            while (true) {
                 try {
                     line = reader.readLine(prompt, rightPrompt, (MaskingCallback) null, null);
-                    CommandLine.run(commands, line.split("\\s+"));
+                    ParsedLine pl = reader.getParser().parse(line, 0);
+                    String[] arguments = pl.words().toArray(new String[0]);
+                    CommandLine.run(commands, arguments);
                 } catch (UserInterruptException e) {
                     // Ignore
                 } catch (EndOfFileException e) {
                     return;
-                }
+                }                    
             }
         } catch (Throwable t) {
             t.printStackTrace();

picocli-shell-jline3/src/test/java/picocli/shell/jline3/example/Example.java

@@ -114,9 +114,8 @@ public class Example {
                 try {
                     line = reader.readLine(prompt, rightPrompt, (MaskingCallback) null, null);
                     ParsedLine pl = reader.getParser().parse(line, 0);
-                    String[] _args = new String[pl.words().size()];
-                    _args = pl.words().toArray(_args);
-                    CommandLine.run(commands, _args);
+                    String[] arguments = pl.words().toArray(new String[0]);
+                    CommandLine.run(commands, arguments);
                 } catch (UserInterruptException e) {
                     // Ignore
                 } catch (EndOfFileException e) {