Fix opening videos with single quotes in the file name

Makefile.am

@@ -98,6 +98,7 @@ shared_sources = $(rapidjson_sources) \
 				 src/shared/PresetsModel.h \
 				 src/shared/ProgressDialog.cpp \
 				 src/shared/ProgressDialog.h \
+				 src/shared/RandomStuff.h \
 				 src/shared/ScrollArea.cpp \
 				 src/shared/ScrollArea.h \
 				 src/shared/SectionsModel.cpp \

src/shared/RandomStuff.h

@@ -0,0 +1,58 @@
+/*
+
+Copyright (c) 2018, John Smith
+
+Permission to use, copy, modify, and/or distribute this software for
+any purpose with or without fee is hereby granted, provided that the
+above copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR
+BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
+OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
+ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+*/
+
+
+#ifndef RANDOMSTUFF_H
+#define RANDOMSTUFF_H
+
+#include <string>
+#include <vector>
+
+
+static std::string handleSingleQuotes(const std::string &path) {
+    // Turn <afkjhg'sgsh'fhdfh> into <afkjhg r"'" r'sgsh' r"'" r'fhdfh>
+    // Replace every ' in the string with ' r"'" r' so that the file name can be passed to Python.
+    // Opening and closing single quotes are provided by the caller.
+
+    char needle = '\'';
+    std::string replacement("' r\"'\" r'");
+
+    std::vector<size_t> positions;
+
+    size_t position = 0;
+    while (true) {
+        position = path.find(needle, position);
+
+        if (position == std::string::npos)
+            break;
+        else {
+            positions.push_back(position);
+            position++;
+        }
+    }
+
+    std::string fixed_path = path;
+
+    for (int i = positions.size() - 1; i >= 0; i--)
+        fixed_path.replace(positions[i], 1, replacement);
+
+    return fixed_path;
+}
+
+#endif // RANDOMSTUFF_H

src/shared/WobblyProject.cpp

@@ -36,6 +36,7 @@ SOFTWARE.
 #include "rapidjson/prettywriter.h"
 #include "rapidjson/error/en.h"
 
+#include "RandomStuff.h"
 #include "WobblyException.h"
 #include "WobblyProject.h"
 
@@ -3332,7 +3333,7 @@ void WobblyProject::presetsToScript(std::string &script) const {
 
 
 void WobblyProject::sourceToScript(std::string &script, bool save_node) const {
-    std::string src = "src = c." + source_filter + "(r'" + input_file + "')\n";
+    std::string src = "src = c." + source_filter + "(r'" + handleSingleQuotes(input_file) + "')\n";
 
     if (save_node) {
     script +=

src/wibbly/WibblyJob.cpp

@@ -18,6 +18,7 @@ SOFTWARE.
 */
 
 
+#include "RandomStuff.h"
 #include "WibblyJob.h"
 
 
@@ -222,20 +223,22 @@ void WibblyJob::headerToScript(std::string &script) const {
 
 
 void WibblyJob::sourceToScript(std::string &script) const {
+    std::string fixed_input_file = handleSingleQuotes(input_file);
+
     script +=
-            "if wibbly_last_input_file == r'" + input_file + "':\n"
+            "if wibbly_last_input_file == r'" + fixed_input_file + "':\n"
             "    try:\n"
             "        src = vs.get_output(index=1)\n"
             // Since VapourSynth R41 get_output returns the alpha as well.
             "        if isinstance(src, tuple):\n"
             "            src = src[0]\n"
             "    except KeyError:\n"
-            "        src = c." + source_filter + "(r'" + input_file + "')\n"
+            "        src = c." + source_filter + "(r'" + fixed_input_file + "')\n"
             "        src.set_output(index=1)\n"
             "else:\n"
-            "    src = c." + source_filter + "(r'" + input_file + "')\n"
+            "    src = c." + source_filter + "(r'" + fixed_input_file + "')\n"
             "    src.set_output(index=1)\n"
-            "    wibbly_last_input_file = r'" + input_file + "'\n"
+            "    wibbly_last_input_file = r'" + fixed_input_file + "'\n"
             "\n";
 }
 

src/wobbly/WobblyWindow.cpp

@@ -45,6 +45,7 @@ SOFTWARE.
 
 #include "CombedFramesCollector.h"
 #include "ProgressDialog.h"
+#include "RandomStuff.h"
 #include "ScrollArea.h"
 #include "WobblyException.h"
 #include "WobblyWindow.h"
@@ -3681,7 +3682,7 @@ void WobblyWindow::realOpenVideo(const QString &path) {
                     "c = vs.get_core()\n"
                     "\n"
                     "c.%1(r'%2').set_output()\n");
-        script = script.arg(source_filter).arg(path);
+        script = script.arg(source_filter).arg(QString::fromStdString(handleSingleQuotes(path.toStdString())));
 
         QApplication::setOverrideCursor(Qt::WaitCursor);