2 files changed, 15 insertions, 0 deletions
diff --git a/src/main/java/org/zwobble/mammoth/styles/parsing/StyleMappingParser.java b/src/main/java/org/zwobble/mammoth/styles/parsing/StyleMappingParser.java
index c475d9b..2ac85c6 100644
--- a/src/main/java/org/zwobble/mammoth/styles/parsing/StyleMappingParser.java
+++ b/src/main/java/org/zwobble/mammoth/styles/parsing/StyleMappingParser.java
@@ -44,6 +44,15 @@ public class StyleMappingParser extends BaseParser<StyleMapBuilder> {
                         updateBuilder.set((styleMap, htmlPath) -> styleMap.mapRun(runMatcher.get(), htmlPath));
                         return true;
                     }
+                }),
+            Sequence(
+                "u",
+                new Action() {
+                    @Override
+                    public boolean run(Context context) {
+                        updateBuilder.set(StyleMapBuilder::underline);
+                        return true;
+                    }
                 }));
     }
 
diff --git a/src/test/java/org/zwobble/mammoth/tests/styles/StyleMapParserTests.java b/src/test/java/org/zwobble/mammoth/tests/styles/StyleMapParserTests.java
index 8331468..e52ee49 100644
--- a/src/test/java/org/zwobble/mammoth/tests/styles/StyleMapParserTests.java
+++ b/src/test/java/org/zwobble/mammoth/tests/styles/StyleMapParserTests.java
@@ -28,4 +28,10 @@ public class StyleMapParserTests {
         StyleMap styleMap = StyleMapParser.parse("r => p");
         assertThat(styleMap, deepEquals(StyleMap.builder().mapRun(RunMatcher.ANY, HtmlPath.collapsibleElement("p")).build()));
     }
+
+    @Test
+    public void canMapUnderline() {
+        StyleMap styleMap = StyleMapParser.parse("u => em");
+        assertThat(styleMap, deepEquals(StyleMap.builder().underline(HtmlPath.collapsibleElement("em")).build()));
+    }
 }