Use break style maps in document conversion

3 files changed, 19 insertions, 5 deletions

diff --git a/src/main/java/org/zwobble/mammoth/internal/conversion/DocumentToHtml.java b/src/main/java/org/zwobble/mammoth/internal/conversion/DocumentToHtml.java
index c252683..cfa4f56 100644
--- a/src/main/java/org/zwobble/mammoth/internal/conversion/DocumentToHtml.java
+++ b/src/main/java/org/zwobble/mammoth/internal/conversion/DocumentToHtml.java
@@ -187,11 +187,15 @@ public class DocumentToHtml {
 
             @Override
             public List<HtmlNode> visit(Break breakElement) {
-                if (breakElement.getType() == Break.Type.LINE) {
-                    return list(Html.element("br"));
-                } else {
-                    return list();
-                }
+                HtmlPath mapping = styleMap.getBreakHtmlPath(breakElement)
+                    .orElseGet(() -> {
+                        if (breakElement.getType() == Break.Type.LINE) {
+                            return HtmlPath.element("br");
+                        } else {
+                            return HtmlPath.EMPTY;
+                        }
+                    });
+                return mapping.wrap(() -> list()).get();
             }
 
             @Override
diff --git a/src/main/java/org/zwobble/mammoth/internal/styles/StyleMap.java b/src/main/java/org/zwobble/mammoth/internal/styles/StyleMap.java
index 0e8ed6d..9856d70 100644
--- a/src/main/java/org/zwobble/mammoth/internal/styles/StyleMap.java
+++ b/src/main/java/org/zwobble/mammoth/internal/styles/StyleMap.java
@@ -96,4 +96,9 @@ public class StyleMap {
         return tryFind(runStyles, styleMapping -> styleMapping.matches(run))
             .map(StyleMapping::getHtmlPath);
     }
+
+    public Optional<HtmlPath> getBreakHtmlPath(Break breakElement) {
+        return tryFind(breakStyles, styleMapping -> styleMapping.matches(breakElement))
+            .map(StyleMapping::getHtmlPath);
+    }
 }
diff --git a/src/main/java/org/zwobble/mammoth/internal/styles/StyleMapBuilder.java b/src/main/java/org/zwobble/mammoth/internal/styles/StyleMapBuilder.java
index 2d66f2a..4972883 100644
--- a/src/main/java/org/zwobble/mammoth/internal/styles/StyleMapBuilder.java
+++ b/src/main/java/org/zwobble/mammoth/internal/styles/StyleMapBuilder.java
@@ -61,6 +61,11 @@ public class StyleMapBuilder {
         return this;
     }
 
+    public StyleMapBuilder mapBreak(BreakMatcher matcher, HtmlPath path) {
+        breakStyles.add(new StyleMapping<>(matcher, path));
+        return this;
+    }
+
     public StyleMap build() {
         return new StyleMap(bold, italic, underline, strikethrough, commentReference, paragraphStyles, runStyles, breakStyles);
     }