Fix #151: Allow mixed comma and whitespace separation in transform pa…

jsvg/src/main/java/com/github/weisj/jsvg/parser/impl/ParserUtil.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2025 Jannis Weis
+ * Copyright (c) 2025-2026 Jannis Weis
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
  * associated documentation files (the "Software"), to deal in the Software without restriction,
@@ -101,25 +101,31 @@ public static float parseFloat(@Nullable String value, float fallback) {
         if (value == null || value.isEmpty()) return fallback;
         List<String> list = new ArrayList<>();
         int max = value.length();
+        boolean splitOnWhitespace = splitter.splitOnWhitespace();
         int start = 0;
         int i = 0;
         boolean inWhiteSpace = false;
+        boolean lastSplitWasWhiteSpace = false;
         for (; i < max; i++) {
             char c = value.charAt(i);
             if (Character.isWhitespace(c)) {
-                if (!inWhiteSpace && splitter.splitOnWhitespace() && i - start > 0) {
+                if (!inWhiteSpace && splitOnWhitespace && i - start > 0) {
                     list.add(value.substring(start, i));
                     start = i + 1;
+                    lastSplitWasWhiteSpace = true;
                 }
                 inWhiteSpace = true;
                 continue;
             }
             inWhiteSpace = false;
             ListSplitter.SplitResult result = splitter.testChar(c, i - start);
             if (result.shouldSplit()) {
-                list.add(value.substring(start, i));
+                if (!(lastSplitWasWhiteSpace && i == start)) list.add(value.substring(start, i));
                 start = result.shouldIncludeChar() ? i : i + 1;
+                lastSplitWasWhiteSpace = false;
+                continue;
             }
+            lastSplitWasWhiteSpace = false;
         }
         if (i - start > 0) list.add(value.substring(start, i));
         return list.toArray(new String[0]);

jsvg/src/test/java/com/github/weisj/jsvg/attribute/AttributeParserTest.java

@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2021-2025 Jannis Weis
+ * Copyright (c) 2021-2026 Jannis Weis
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
  * associated documentation files (the "Software"), to deal in the Software without restriction,
@@ -27,6 +27,7 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 
+import com.github.weisj.jsvg.attributes.transform.TransformPart;
 import com.github.weisj.jsvg.paint.impl.DefaultPaintParser;
 import com.github.weisj.jsvg.parser.impl.AttributeParser;
 import com.github.weisj.jsvg.parser.impl.SeparatorMode;
@@ -91,4 +92,22 @@ private <T> String appendToList(T[] arr, Random r, boolean requireComma) {
         }
         return builder.toString();
     }
+
+    @Test
+    void testTransformScaleAllowsCommaAndWhitespace() {
+        TransformPart part = parser.parseTransformPart(TransformPart.TransformType.SCALE, "-1, 1");
+        Assertions.assertNotNull(part);
+    }
+
+    @Test
+    void testTransformScaleAllowsMixedCommaAndWhitespace() {
+        TransformPart part = parser.parseTransformPart(TransformPart.TransformType.SCALE, "-1 , 1");
+        Assertions.assertNotNull(part);
+    }
+
+    @Test
+    void testTransformCommaOnlyKeepsEmptyEntryBetweenCommas() {
+        String[] values = parser.parseStringList("1,,1", SeparatorMode.COMMA_ONLY);
+        Assertions.assertArrayEquals(new String[] {"1", "", "1"}, values);
+    }
 }