From 8f24d38bf8bc3715de6e80374a1a5169a2b40a4e Mon Sep 17 00:00:00 2001
From: Le Tan <tamlokveer@gmail.com>
Date: Mon, 14 May 2018 20:41:44 +0800
Subject: [PATCH] export: remove <title> in embedded SVGs

Pandoc will take it as the title of the document by mistake.
---
 src/utils/vwebutils.cpp | 8 +++++++-
 src/utils/vwebutils.h   | 2 +-
 src/vexporter.cpp       | 2 +-
 3 files changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/utils/vwebutils.cpp b/src/utils/vwebutils.cpp
index fdb9af63..17a4c00f 100644
--- a/src/utils/vwebutils.cpp
+++ b/src/utils/vwebutils.cpp
@@ -926,7 +926,7 @@ QString VWebUtils::copyResource(const QUrl &p_url, const QString &p_folder) cons
     return succ ? targetFile : QString();
 }
 
-QString VWebUtils::dataURI(const QUrl &p_url) const
+QString VWebUtils::dataURI(const QUrl &p_url, bool p_keepTitle) const
 {
     QString uri;
     Q_ASSERT(!p_url.isRelative());
@@ -956,6 +956,12 @@ QString VWebUtils::dataURI(const QUrl &p_url) const
     if (suffix == "svg") {
         uri = QString("data:image/svg+xml;utf8,%1").arg(QString::fromUtf8(data));
         uri.replace('\r', "").replace('\n', "");
+
+        if (!p_keepTitle) {
+            // Remove <title>...</title>.
+            QRegExp reg("<title>.*</title>", Qt::CaseInsensitive);
+            uri.remove(reg);
+        }
     } else {
         uri = QString("data:image/%1;base64,%2").arg(suffix).arg(QString::fromUtf8(data.toBase64()));
     }
diff --git a/src/utils/vwebutils.h b/src/utils/vwebutils.h
index f488b43b..4d446951 100644
--- a/src/utils/vwebutils.h
+++ b/src/utils/vwebutils.h
@@ -26,7 +26,7 @@ public:
     QString copyResource(const QUrl &p_url, const QString &p_folder) const;
 
     // Return a dataURI of @p_url if it is an image.
-    QString dataURI(const QUrl &p_url) const;
+    QString dataURI(const QUrl &p_url, bool p_keepTitle = true) const;
 
 private:
     struct CopyTargetAction
diff --git a/src/vexporter.cpp b/src/vexporter.cpp
index 57864bb2..b059eae1 100644
--- a/src/vexporter.cpp
+++ b/src/vexporter.cpp
@@ -625,7 +625,7 @@ bool VExporter::embedStyleResources(QString &p_html)
             break;
         }
 
-        QString dataURI = g_webUtils->dataURI(QUrl(reg.cap(1)));
+        QString dataURI = g_webUtils->dataURI(QUrl(reg.cap(1)), false);
         if (dataURI.isEmpty()) {
             pos = idx + reg.matchedLength();
         } else {