Initial SNBT implementation

lib/nbt/impl/ByteArrayTag.dart

@@ -46,4 +46,9 @@ class ByteArrayTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: [$array]");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("[B; ${value.join("B, ")}B]");
+  }
 }

lib/nbt/impl/ByteTag.dart

@@ -34,4 +34,9 @@ class ByteTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("${value}b");
+  }
 }

lib/nbt/impl/CompoundTag.dart

@@ -85,4 +85,22 @@ class CompoundTag extends Tag {
   void endPrettyPrint(int indent) {
     print("${"".padLeft(indent, '\t')}}");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    Iterator<Tag> it = value.values.iterator;
+    builder.append("{\n");
+
+    bool firstEntry = true;
+    while (it.moveNext()) {
+      Tag t = it.current;
+      if (firstEntry) {
+        firstEntry = false;
+      } else {
+        builder.append(",\n");
+      }
+      Tag.writeStringifiedNamedTag(t, builder, indent);
+    }
+    builder.append("\n${"".padLeft(indent - 1, '\t')}}\n");
+  }
 }

lib/nbt/impl/DoubleTag.dart

@@ -34,4 +34,9 @@ class DoubleTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("${value}d");
+  }
 }

lib/nbt/impl/EndTag.dart

@@ -19,4 +19,7 @@ class EndTag extends Tag {
   void prettyPrint(int indent, bool recurse) {
     print("${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {}
 }

lib/nbt/impl/FloatTag.dart

@@ -33,4 +33,9 @@ class FloatTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("${value}f");
+  }
 }

lib/nbt/impl/IntArrayTag.dart

@@ -45,4 +45,9 @@ class IntArrayTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: [$array]");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("[I; ${value.join('I, ')}I]");
+  }
 }

lib/nbt/impl/IntTag.dart

@@ -33,4 +33,9 @@ class IntTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("${value}i");
+  }
 }

lib/nbt/impl/ListTag.dart

@@ -86,4 +86,9 @@ class ListTag extends Tag {
   void endPrettyPrint(int indent) {
     print("${"".padLeft(indent, '\t')}]");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("[\n");
+  }
 }

lib/nbt/impl/LongArrayTag.dart

@@ -49,4 +49,9 @@ class LongArrayTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: [$array]");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("[L; ${value.join('L, ')}L]");
+  }
 }

lib/nbt/impl/LongTag.dart

@@ -33,4 +33,9 @@ class LongTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("${value}L");
+  }
 }

lib/nbt/impl/ShortTag.dart

@@ -33,4 +33,9 @@ class ShortTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("${value}S");
+  }
 }

lib/nbt/impl/StringTag.dart

@@ -33,4 +33,9 @@ class StringTag extends Tag {
     print(
         "${"".padLeft(indent, '\t')}${Tag.getCanonicalName(getTagType())}: $value");
   }
+
+  @override
+  void writeStringifiedValue(StringBuilder builder, int indent) {
+    builder.append("\"${value}\"");
+  }
 }