From d891da7136542d04003c799fac6812fe4e288101 Mon Sep 17 00:00:00 2001
From: David Estes <davydotcom@gmail.com>
Date: Tue, 25 Apr 2023 12:51:20 -0400
Subject: [PATCH] null safety

---
 README.md                                            |  3 ++-
 build.gradle                                         |  2 +-
 .../bertramlabs/plugins/hcl4j/HCLBaseFunctions.java  | 12 ++++++------
 3 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/README.md b/README.md
index c99d6c8..b9a1788 100644
--- a/README.md
+++ b/README.md
@@ -16,12 +16,13 @@ Using gradle one can include the hcl4j dependency like so:
 
 ```groovy
 dependencies {
-	compile "com.bertramlabs.plugins:hcl4j:0.6.8"
+	compile "com.bertramlabs.plugins:hcl4j:0.7.0"
 }
 ```
 
 ## What's New
 
+* **0.7.0** Adding some null safety on some of the base functions
 * **0.6.9** Fixed some null pointer issues if content on base64encode was null and some exceptions on array traversal
 * **0.6.8** Fixed ! (not) operator and added base64encode, base64decode, textdecodebase64, textencodebase64
 * **0.6.7** Fixed operators called on variables without spaces
diff --git a/build.gradle b/build.gradle
index 3eab30f..6006925 100644
--- a/build.gradle
+++ b/build.gradle
@@ -30,7 +30,7 @@ ext {
 
 
 group = 'com.bertramlabs.plugins'
-version = '0.6.9'
+version = '0.7.0'
 
 ext.isReleaseVersion = !version.endsWith("SNAPSHOT")
 sourceCompatibility = "1.8"
diff --git a/src/main/java/com/bertramlabs/plugins/hcl4j/HCLBaseFunctions.java b/src/main/java/com/bertramlabs/plugins/hcl4j/HCLBaseFunctions.java
index 2554242..c083b3a 100644
--- a/src/main/java/com/bertramlabs/plugins/hcl4j/HCLBaseFunctions.java
+++ b/src/main/java/com/bertramlabs/plugins/hcl4j/HCLBaseFunctions.java
@@ -24,21 +24,21 @@
 public class HCLBaseFunctions {
     static void registerBaseFunctions(HCLParser parser) {
         parser.registerFunction("upper", (arguments) -> {
-            if(arguments.size() > 0) {
+            if(arguments.size() > 0 && arguments.get(0) != null) {
                 return arguments.get(0).toString().toUpperCase(Locale.ROOT);
             }
             return null;
         });
 
         parser.registerFunction("lower", (arguments) -> {
-            if(arguments.size() > 0) {
+            if(arguments.size() > 0 && arguments.get(0) != null) {
                 return arguments.get(0).toString().toLowerCase(Locale.ROOT);
             }
             return null;
         });
 
         parser.registerFunction("format", (arguments) -> {
-            if(arguments.size() > 0) {
+            if(arguments.size() > 0  && arguments.get(0) != null) {
                 String val = arguments.get(0).toString();
                 ArrayList<Object> args = new ArrayList<>();
                 for(int x=1;x<arguments.size();x++) {
@@ -51,7 +51,7 @@ static void registerBaseFunctions(HCLParser parser) {
 
 
         parser.registerFunction("trimspace", (arguments) -> {
-            if(arguments.size() > 0) {
+            if(arguments.size() > 0 && arguments.get(0) != null) {
                 return arguments.get(0).toString();
             }
             return null;
@@ -59,7 +59,7 @@ static void registerBaseFunctions(HCLParser parser) {
 
 
         parser.registerFunction("trim", (arguments) -> {
-            if(arguments.size() > 0) {
+            if(arguments.size() > 0 && arguments.get(0) != null) {
                 return arguments.get(0).toString();
             }
             return null;
@@ -67,7 +67,7 @@ static void registerBaseFunctions(HCLParser parser) {
 
 
         parser.registerFunction("strrev", (arguments) -> {
-            if(arguments.size() > 0) {
+            if(arguments.size() > 0 && arguments.get(0) != null) {
                 String str = arguments.get(0).toString();
                 String reversed = "";
                 char ch;