From fff00e8efe38ef3f0e2964051459eac354935ecc Mon Sep 17 00:00:00 2001
From: Phergus <34379254+Phergus@users.noreply.github.com>
Date: Fri, 19 Nov 2021 08:43:24 -0700
Subject: [PATCH 1/2] Update StringFunctions.java

Trim whitespace off of strings before evaluation.
---
 .../net/rptools/maptool/client/functions/StringFunctions.java   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java b/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java
index e482fc3c38..915fa2742f 100644
--- a/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java
+++ b/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java
@@ -273,7 +273,7 @@ public Object childEvaluate(
       }
     }
     if (functionName.equalsIgnoreCase("isNumber")) {
-      if (NumberUtils.isParsable(parameters.get(0).toString())) {
+      if (NumberUtils.isParsable(parameters.get(0).toString().trim())) {
         return BigDecimal.ONE;
       } else {
         return BigDecimal.ZERO;

From 6f1ddbd372dc3344ed165307a419ddfe830eac07 Mon Sep 17 00:00:00 2001
From: Phergus <34379254+Phergus@users.noreply.github.com>
Date: Fri, 19 Nov 2021 09:30:47 -0700
Subject: [PATCH 2/2] Update StringFunctions.java

Handle leading '+' character for numbers.
---
 .../rptools/maptool/client/functions/StringFunctions.java | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java b/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java
index 915fa2742f..567e2019e3 100644
--- a/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java
+++ b/src/main/java/net/rptools/maptool/client/functions/StringFunctions.java
@@ -273,7 +273,13 @@ public Object childEvaluate(
       }
     }
     if (functionName.equalsIgnoreCase("isNumber")) {
-      if (NumberUtils.isParsable(parameters.get(0).toString().trim())) {
+      String str = parameters.get(0).toString().trim();
+      // isParsable() returns false for leading + so stripping
+      // off the first one. Any extras will return false.
+      if (str.length() > 1 && str.charAt(0) == '+') {
+        str = str.substring(1);
+      }
+      if (NumberUtils.isParsable(str)) {
         return BigDecimal.ONE;
       } else {
         return BigDecimal.ZERO;