From a6ec5ea9de36a24f44998887d34f631bebd59864 Mon Sep 17 00:00:00 2001
From: "Martin T. H. Sandsmark" <martin.sandsmark@kde.org>
Date: Sun, 24 Jul 2016 20:27:04 +0200
Subject: [PATCH] Fix parsing of lilypond URLs

---
 core/sourcereference.cpp | 55 ++++++++++++++++++++++------------------
 1 file changed, 31 insertions(+), 24 deletions(-)

diff --git a/core/sourcereference.cpp b/core/sourcereference.cpp
index a9d72d605..bde8bc1bd 100644
--- a/core/sourcereference.cpp
+++ b/core/sourcereference.cpp
@@ -59,33 +59,40 @@ int SourceReference::column() const
 
 bool Okular::extractLilyPondSourceReference( const QUrl &url, QString *file, int *row, int *col )
 {
+    // Example URL is: textedit:///home/foo/bar.ly:42:42:42
+    // The three numbers are apparently: line:beginning of column:end of column
+
     if ( url.scheme() != QStringLiteral("textedit") )
         return false;
 
-#pragma message("KF5 fix LilyPond references")
-    return false;
-
-//    *row = 0;
-//    *col = 0;
-//    int lilyChar = 0;
-//    typedef int *IntPtr;
-//    const IntPtr int_data[] = { row, &lilyChar, col };
-//    int int_index = sizeof( int_data ) / sizeof( int* ) - 1;
-//    int index_last = -1;
-//    int index = url.lastIndexOf( QLatin1Char( ':' ), index_last );
-//    while ( index != -1 && int_index >= 0 )
-//    {
-//        // read the current "chunk"
-//        const QStringRef ref = url.midRef( index + 1, index_last - index - 1 );
-//        *int_data[ int_index ] = QString::fromRawData( ref.data(), ref.count() ).toInt();
-//        // find the previous "chunk"
-//        index_last = index;
-//        index = url.lastIndexOf( QLatin1Char( ':' ), index_last - 1 );
-//        --int_index;
-//    }
-//    // NOTE: 11 is the length of "textedit://"
-//    *file = QUrl::fromPercentEncoding( url.mid( 11, index_last != -1 ? index_last - 11 : -1 ).toUtf8() );
-//    return true;
+    // There can be more, in case the filename contains :
+    if (url.fileName().count(':') < 3) {
+        return false;
+    }
+
+    QStringList parts(url.path().split(':'));
+
+    bool ok;
+    // Take out the things we need
+    int columnEnd = parts.takeLast().toInt(&ok); // apparently we don't use this
+    Q_UNUSED(columnEnd);
+    if (!ok) {
+        return false;
+    }
+
+    *col = parts.takeLast().toInt(&ok);
+    if (!ok) {
+        return false;
+    }
+
+    *row = parts.takeLast().toInt(&ok);
+    if (!ok) {
+        return false;
+    }
+
+    // In case the path itself contains :, we need to reconstruct it after removing all the numbers
+    *file = parts.join(':');
+    return (!file->isEmpty());
 }
 
 QString Okular::sourceReferenceToolTip( const QString &source, int row, int col )