From e6548bcccd340c38ac1bbe41c2926f4261aee1b3 Mon Sep 17 00:00:00 2001
From: Grahame Grieve <grahameg@gmail.ccom>
Date: Thu, 9 Feb 2023 17:39:47 +1100
Subject: [PATCH] add unCamelCaseKeepCapitals

---
 .../org/hl7/fhir/utilities/Utilities.java     | 21 ++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
index 508bbcb1d..e07d6b7c7 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
@@ -1181,7 +1181,21 @@ public class Utilities {
     return fn.contains(".") ? fn.substring(fn.lastIndexOf(".") + 1) : "";
   }
 
-
+  public static String unCamelCaseKeepCapitals(String name) {
+    StringBuilder b = new StringBuilder();
+    boolean first = true;
+    for (char c : name.toCharArray()) {
+      if (Character.isUpperCase(c)) {
+        if (!first)
+          b.append(" ");
+        b.append(c);
+      } else
+        b.append(c);
+      first = false;
+    }
+    return b.toString();
+  }
+  
   public static String unCamelCase(String name) {
     StringBuilder b = new StringBuilder();
     boolean first = true;
@@ -1862,4 +1876,9 @@ public class Utilities {
     }
     
   }
+
+  public static boolean isValidCRName(String name) {
+    return name != null && name.matches("[A-Z]([A-Za-z0-9_]){1,254}");
+  }
+
 }