Avoid stack overflows with long documents

2 files changed, 15 insertions, 1 deletions

diff --git a/lib/document-to-html.js b/lib/document-to-html.js
index 94c8b6a..5c4db50 100644
--- a/lib/document-to-html.js
+++ b/lib/document-to-html.js
@@ -42,7 +42,9 @@ function DocumentConverter(options) {
     
     function convertParagraph(element, html, messages, callback) {
         html.satisfyPath(styleForParagraph(element, messages));
-        convertElements(element.children, html, messages, callback);
+        process.nextTick(function() {
+            convertElements(element.children, html, messages, callback);
+        });
     }
     
     function styleForParagraph(element, messages) {
diff --git a/tests/document-to-html.tests.js b/tests/document-to-html.tests.js
index 447e0b5..fd6ef1a 100644
--- a/tests/document-to-html.tests.js
+++ b/tests/document-to-html.tests.js
@@ -237,6 +237,18 @@ describe('DocumentConverter', function() {
             assert.equal(result.value, '<img alt="Not an image at all!" />');
         });
     });
+    
+    test('long documents do not cause stack overflow', function() {
+        var paragraphs = [];
+        for (var i = 0; i < 1000; i++) {
+            paragraphs.push(paragraphOfText("Hello."));
+        }
+        var document = new documents.Document(paragraphs);
+        var converter = new DocumentConverter();
+        return converter.convertToHtml(document).then(function(result) {
+            assert.equal(result.value.indexOf("<p>Hello.</p>"), 0);
+        });
+    });
 });
 
 function paragraphOfText(text, styleName) {