Handle missing paragraph styles in the source document

1 files changed, 8 insertions, 2 deletions

diff --git a/lib/docx/body-reader.js b/lib/docx/body-reader.js
index 618474e..ecf3e12 100644
--- a/lib/docx/body-reader.js
+++ b/lib/docx/body-reader.js
@@ -95,6 +95,7 @@ function BodyReader(options) {
             var properties = {
                 type: "paragraphProperties"
             };
+            var messages = [];
             
             var styleElement = element.first("w:pStyle");
             if (styleElement) {
@@ -102,7 +103,12 @@ function BodyReader(options) {
                 properties.styleId = styleId;
                 if (styleId) {
                     var style = styles.findParagraphStyleById(styleId);
-                    properties.styleName = style.name;
+                    if (style) {
+                        properties.styleName = style.name;
+                    } else {
+                        messages.push(warning(
+                            "Style with ID " + styleId + " was referenced but not defined in the document"));
+                    }
                 }
             }
             var alignElement = element.first("w:jc");
@@ -111,7 +117,7 @@ function BodyReader(options) {
             }
             properties.numbering = readNumberingProperties(element.firstOrEmpty("w:numPr"));
             
-            return elementResult(properties);
+            return elementResultWithMessages(properties, messages);
         },
         "w:r": function(element) {
             return readXmlElements(element.children)