add support for transaction-level comments in the JSON-based parser

[mobile-ledger-staging.git] / app / src / main / java / net / ktnx / mobileledger / utils / Misc.java

diff --git a/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java b/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java
index 9e0a3fec2cc66ae312103cd65b7b6adcd033a2a1..b912541fcd351f20d92b948c846ab481cb289d14 100644 (file)
--- a/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java
+++ b/app/src/main/java/net/ktnx/mobileledger/utils/Misc.java
@@ -21,6 +21,7 @@ import android.app.Activity;
 import android.content.res.Configuration;
 import android.view.WindowManager;
 
+import androidx.annotation.Nullable;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentActivity;
 
@@ -56,4 +57,31 @@ public class Misc {
                     .setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_HIDDEN);
 
     }
+    public static String emptyIsNull(String str) {
+        return "".equals(str) ? null : str;
+    }
+    public static String nullIsEmpty(String str) {
+        return (str == null) ? "" : str;
+    }
+    public static boolean isEmptyOrNull (String str) {
+        if (str == null) return true;
+        return str.isEmpty();
+    }
+    public static boolean equalStrings(String u, CharSequence text) {
+        return nullIsEmpty(u).equals(text.toString());
+    }
+    public static boolean equalStrings(String a, String b) {
+        return nullIsEmpty(a).equals(nullIsEmpty(b));
+    }
+    public static boolean isEmptyOrNull(CharSequence text) {
+        if (text == null)
+            return true;
+        return text.length() == 0;
+    }
+    public static String trim(@Nullable String string) {
+        if (string == null)
+            return null;
+
+        return string.trim();
+    }
 }