From 912ab611587020aec97e7f79faf79784992f05b9 Mon Sep 17 00:00:00 2001
From: "moandji.ezana" <mwanji@gmail.com>
Date: Thu, 2 Jul 2015 07:59:30 +0200
Subject: [PATCH] Test that keys are quoted when writing from an object and in
 table names

---
 .../com/moandjiezana/toml/MapValueWriter.java     |  4 ++--
 .../com/moandjiezana/toml/TomlWriterTest.java     | 15 +++++++++++++++
 2 files changed, 17 insertions(+), 2 deletions(-)

diff --git a/src/main/java/com/moandjiezana/toml/MapValueWriter.java b/src/main/java/com/moandjiezana/toml/MapValueWriter.java
index 2625c1a..4e6ec79 100644
--- a/src/main/java/com/moandjiezana/toml/MapValueWriter.java
+++ b/src/main/java/com/moandjiezana/toml/MapValueWriter.java
@@ -11,7 +11,7 @@ import java.util.regex.Pattern;
 class MapValueWriter implements ValueWriter {
   static final ValueWriter MAP_VALUE_WRITER = new MapValueWriter();
 
-  private static final Pattern requiredQuotingPattern = Pattern.compile("^.*[^A-Za-z\\d_-].*$");
+  private static final Pattern REQUIRED_QUOTING_PATTERN = Pattern.compile("^.*[^A-Za-z\\d_-].*$");
 
   @Override
   public boolean canWrite(Object value) {
@@ -70,7 +70,7 @@ class MapValueWriter implements ValueWriter {
 
   private static String quoteKey(Object key) {
     String stringKey = key.toString();
-    Matcher matcher = requiredQuotingPattern.matcher(stringKey);
+    Matcher matcher = REQUIRED_QUOTING_PATTERN.matcher(stringKey);
     if (matcher.matches()) {
       stringKey = "\"" + stringKey + "\"";
     }
diff --git a/src/test/java/com/moandjiezana/toml/TomlWriterTest.java b/src/test/java/com/moandjiezana/toml/TomlWriterTest.java
index f5aa8f5..17ee96c 100644
--- a/src/test/java/com/moandjiezana/toml/TomlWriterTest.java
+++ b/src/test/java/com/moandjiezana/toml/TomlWriterTest.java
@@ -311,6 +311,21 @@ public class TomlWriterTest {
     assertEquals(expected, new TomlWriter().write(aMap));
   }
   
+  @Test
+  public void should_quote_keys_in_object() throws Exception {
+    class A$ {
+      Double µµ = 5.3;
+    }
+    
+    class A {
+      int €5 = 5;
+      String français = "langue";
+      A$ a$ = new A$();
+    }
+    
+    assertEquals("\"€5\" = 5\n\"français\" = \"langue\"\n\n[\"a$\"]\n\"µµ\" = 5.3\n", new TomlWriter().write(new A()));
+  }
+  
   @Test
   public void should_handle_urls() throws Exception {
     class WithUrl {