From 0ff7d6e300fe9c6b305d07e1188f5383185245e6 Mon Sep 17 00:00:00 2001
From: Arne Keller <arne.keller01@yahoo.de>
Date: Wed, 19 Feb 2020 08:57:18 +0100
Subject: [PATCH] Remove not needed pattern

---
 src/edu/kit/informatik/ui/command/CommandFactory.java | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/src/edu/kit/informatik/ui/command/CommandFactory.java b/src/edu/kit/informatik/ui/command/CommandFactory.java
index d77193a..7cb674c 100644
--- a/src/edu/kit/informatik/ui/command/CommandFactory.java
+++ b/src/edu/kit/informatik/ui/command/CommandFactory.java
@@ -57,7 +57,6 @@ public final class CommandFactory {
     private static final Pattern PUT_TRAIN_ARGUMENTS
         = Pattern.compile(" (" + NUMBER + ") at \\((" + VECTOR + ")\\) in direction (" + VECTOR + ")");
     private static final String STEP = "step";
-    private static final String POSITIVE_NUMBER = " \\+?\\d+";
 
     /**
      * Parse a single line of user input into one command.
@@ -87,7 +86,7 @@ public final class CommandFactory {
             return new AddSwitch(start, end1, end2);
         } else if (command.startsWith(DELETE_TRACK)) {
             String argument = command.substring(DELETE_TRACK.length());
-            if (!argument.matches(POSITIVE_NUMBER)) {
+            if (!argument.matches(" " + NUMBER)) {
                 throw new InvalidInputException("invalid/missing delete track argument");
             }
             int id = Integer.parseInt(argument.substring(1));
@@ -182,7 +181,7 @@ public final class CommandFactory {
             return new AddTrain(trainId, rollingStockId);
         } else if (command.startsWith(DELETE_TRAIN)) {
             String argument = command.substring(DELETE_TRAIN.length());
-            if (!argument.matches(POSITIVE_NUMBER)) {
+            if (!argument.matches(" " + NUMBER)) {
                 throw new InvalidInputException("invalid delete train argument");
             }
             int id = Integer.parseInt(argument.substring(1));
@@ -194,7 +193,7 @@ public final class CommandFactory {
             return new ListTrains();
         } else if (command.startsWith(SHOW_TRAIN)) {
             String argument = command.substring(SHOW_TRAIN.length());
-            if (!argument.matches(POSITIVE_NUMBER)) {
+            if (!argument.matches(" " + NUMBER)) {
                 throw new InvalidInputException("invalid show train argument");
             }
             int id = Integer.parseInt(argument.substring(1));