From 32b3ed0a1362a4b0798ad71fac3450fb77cb7e41 Mon Sep 17 00:00:00 2001
From: Thomas Groman <tgroman@nuegia.net>
Date: Thu, 19 Sep 2019 00:41:48 -0700
Subject: merged from 0.6.7 codebase

---
 api/logic/settings/INIFile.cpp | 204 ++++++++++++++++++++++-------------------
 1 file changed, 108 insertions(+), 96 deletions(-)

(limited to 'api/logic/settings/INIFile.cpp')

diff --git a/api/logic/settings/INIFile.cpp b/api/logic/settings/INIFile.cpp
index 9e97f861..ff6d5cf3 100644
--- a/api/logic/settings/INIFile.cpp
+++ b/api/logic/settings/INIFile.cpp
@@ -1,4 +1,4 @@
-/* Copyright 2013-2018 MultiMC Contributors
+/* Copyright 2013-2019 MultiMC Contributors
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -28,124 +28,136 @@ INIFile::INIFile()
 
 QString INIFile::unescape(QString orig)
 {
-	QString out;
-	QChar prev = 0;
-	for(auto c: orig)
-	{
-		if(prev == '\\')
-		{
-			if(c == 'n')
-				out += '\n';
-			else if (c == 't')
-				out += '\t';
-			else
-				out += c;
-			prev = 0;
-		}
-		else
-		{
-			if(c == '\\')
-			{
-				prev = c;
-				continue;
-			}
-			out += c;
-			prev = 0;
-		}
-	}
-	return out;
+    QString out;
+    QChar prev = 0;
+    for(auto c: orig)
+    {
+        if(prev == '\\')
+        {
+            if(c == 'n')
+                out += '\n';
+            else if(c == 't')
+                out += '\t';
+            else if(c == '#')
+                out += '#';
+            else
+                out += c;
+            prev = 0;
+        }
+        else
+        {
+            if(c == '\\')
+            {
+                prev = c;
+                continue;
+            }
+            out += c;
+            prev = 0;
+        }
+    }
+    return out;
 }
 
 QString INIFile::escape(QString orig)
 {
-	QString out;
-	for(auto c: orig)
-	{
-		if(c == '\n')
-			out += "\\n";
-		else if (c == '\t')
-			out += "\\t";
-		else if(c == '\\')
-			out += "\\\\";
-		else
-			out += c;
-	}
-	return out;
+    QString out;
+    for(auto c: orig)
+    {
+        if(c == '\n')
+            out += "\\n";
+        else if (c == '\t')
+            out += "\\t";
+        else if(c == '\\')
+            out += "\\\\";
+        else if(c == '#')
+            out += "\\#";
+        else
+            out += c;
+    }
+    return out;
 }
 
 bool INIFile::saveFile(QString fileName)
 {
-	QByteArray outArray;
-	for (Iterator iter = begin(); iter != end(); iter++)
-	{
-		QString value = iter.value().toString();
-		value = escape(value);
-		outArray.append(iter.key().toUtf8());
-		outArray.append('=');
-		outArray.append(value.toUtf8());
-		outArray.append('\n');
-	}
-
-	try
-	{
-		FS::write(fileName, outArray);
-	}
-	catch (Exception & e)
-	{
-		qCritical() << e.what();
-		return false;
-	}
-
-	return true;
+    QByteArray outArray;
+    for (Iterator iter = begin(); iter != end(); iter++)
+    {
+        QString value = iter.value().toString();
+        value = escape(value);
+        outArray.append(iter.key().toUtf8());
+        outArray.append('=');
+        outArray.append(value.toUtf8());
+        outArray.append('\n');
+    }
+
+    try
+    {
+        FS::write(fileName, outArray);
+    }
+    catch (const Exception &e)
+    {
+        qCritical() << e.what();
+        return false;
+    }
+
+    return true;
 }
 
 
 bool INIFile::loadFile(QString fileName)
 {
-	QFile file(fileName);
-	if (!file.open(QIODevice::ReadOnly))
-		return false;
-	bool success = loadFile(file.readAll());
-	file.close();
-	return success;
+    QFile file(fileName);
+    if (!file.open(QIODevice::ReadOnly))
+        return false;
+    bool success = loadFile(file.readAll());
+    file.close();
+    return success;
 }
 
 bool INIFile::loadFile(QByteArray file)
 {
-	QTextStream in(file);
-	in.setCodec("UTF-8");
-
-	QStringList lines = in.readAll().split('\n');
-	for (int i = 0; i < lines.count(); i++)
-	{
-		QString &lineRaw = lines[i];
-		// Ignore comments.
-		QString line = lineRaw.left(lineRaw.indexOf('#')).trimmed();
-
-		int eqPos = line.indexOf('=');
-		if (eqPos == -1)
-			continue;
-		QString key = line.left(eqPos).trimmed();
-		QString valueStr = line.right(line.length() - eqPos - 1).trimmed();
-
-		valueStr = unescape(valueStr);
-
-		QVariant value(valueStr);
-		this->operator[](key) = value;
-	}
-
-	return true;
+    QTextStream in(file);
+    in.setCodec("UTF-8");
+
+    QStringList lines = in.readAll().split('\n');
+    for (int i = 0; i < lines.count(); i++)
+    {
+        QString &lineRaw = lines[i];
+        // Ignore comments.
+        int commentIndex = 0;
+        QString line = lineRaw;
+        // Search for comments until no more escaped # are available
+        while((commentIndex = line.indexOf('#', commentIndex + 1)) != -1) {
+            if(commentIndex > 0 && line.at(commentIndex - 1) == '\\') {
+                continue;
+            }
+            line = line.left(lineRaw.indexOf('#')).trimmed();
+        }
+
+        int eqPos = line.indexOf('=');
+        if (eqPos == -1)
+            continue;
+        QString key = line.left(eqPos).trimmed();
+        QString valueStr = line.right(line.length() - eqPos - 1).trimmed();
+
+        valueStr = unescape(valueStr);
+
+        QVariant value(valueStr);
+        this->operator[](key) = value;
+    }
+
+    return true;
 }
 
 QVariant INIFile::get(QString key, QVariant def) const
 {
-	if (!this->contains(key))
-		return def;
-	else
-		return this->operator[](key);
+    if (!this->contains(key))
+        return def;
+    else
+        return this->operator[](key);
 }
 
 void INIFile::set(QString key, QVariant val)
 {
-	this->operator[](key) = val;
+    this->operator[](key) = val;
 }
-- 
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