IniFile: Remove support for comments anywhere but the beginning of lines

The MS INI parser and most other INI parsing libraries APIs only support
comments at the beginning of lines. Right now, some Game INI files use sections
like:

  [OnFrame]#Add memory patches here

But these section headers are parsed separately, so this should not break
them.

Source/Core/Common/Src/IniFile.cpp

@@ -20,45 +20,30 @@
 
 namespace {
 
-static void ParseLine(const std::string& line, std::string* keyOut, std::string* valueOut, std::string* commentOut)
+static void ParseLine(const std::string& line, std::string* keyOut, std::string* valueOut)
 {
-	int FirstEquals = (int)line.find("=", 0);
-	int FirstCommentChar = -1;
-
-	// Comments
-	if (FirstCommentChar < 0)
-		FirstCommentChar =
-			(int)line.find("#", FirstEquals > 0 ? FirstEquals : 0);
-	if (FirstCommentChar < 0 && line[0] == ';')
-		FirstCommentChar = 0;
+	if (line[0] == '#')
+		return;
 
-	// Allow preservation of spacing before comment
-	if (FirstCommentChar > 0)
-	{
-		while (line[FirstCommentChar - 1] == ' ' || line[FirstCommentChar - 1] == 9) // 9 == tab
-		{
-			FirstCommentChar--;
-		}
-	}
+	int FirstEquals = (int)line.find("=", 0);
 
-	if ((FirstEquals >= 0) && ((FirstCommentChar < 0) || (FirstEquals < FirstCommentChar)))
+	if (FirstEquals >= 0)
 	{
 		// Yes, a valid line!
 		*keyOut = StripSpaces(line.substr(0, FirstEquals));
-		if (commentOut) *commentOut = FirstCommentChar > 0 ? line.substr(FirstCommentChar) : std::string("");
-		if (valueOut) *valueOut = StripQuotes(StripSpaces(line.substr(FirstEquals + 1, FirstCommentChar - FirstEquals - 1)));
+		if (valueOut) *valueOut = StripQuotes(StripSpaces(line.substr(FirstEquals + 1, std::string::npos)));
 	}
 }
 
 }
 
-std::string* IniFile::Section::GetLine(const char* key, std::string* valueOut, std::string* commentOut)
+std::string* IniFile::Section::GetLine(const char* key, std::string* valueOut)
 {
 	for (std::vector<std::string>::iterator iter = lines.begin(); iter != lines.end(); ++iter)
 	{
 		std::string& line = *iter;
 		std::string lineKey;
-		ParseLine(line, &lineKey, valueOut, commentOut);
+		ParseLine(line, &lineKey, valueOut);
 		if (!strcasecmp(lineKey.c_str(), key))
 			return &line;
 	}
@@ -67,12 +52,12 @@ std::string* IniFile::Section::GetLine(const char* key, std::string* valueOut, s
 
 void IniFile::Section::Set(const char* key, const char* newValue)
 {
-	std::string value, commented;
-	std::string* line = GetLine(key, &value, &commented);
+	std::string value;
+	std::string* line = GetLine(key, &value);
 	if (line)
 	{
 		// Change the value - keep the key and comment
-		*line = StripSpaces(key) + " = " + newValue + commented;
+		*line = StripSpaces(key) + " = " + newValue;
 	}
 	else
 	{
@@ -91,7 +76,7 @@ void IniFile::Section::Set(const char* key, const std::string& newValue, const s
 
 bool IniFile::Section::Get(const char* key, std::string* value, const char* defaultValue)
 {
-	std::string* line = GetLine(key, value, 0);
+	std::string* line = GetLine(key, value);
 	if (!line)
 	{
 		if (defaultValue)
@@ -224,7 +209,7 @@ bool IniFile::Section::Exists(const char *key) const
 	for (std::vector<std::string>::const_iterator iter = lines.begin(); iter != lines.end(); ++iter)
 	{
 		std::string lineKey;
-		ParseLine(*iter, &lineKey, NULL, NULL);
+		ParseLine(*iter, &lineKey, NULL);
 		if (!strcasecmp(lineKey.c_str(), key))
 			return true;
 	}
@@ -233,7 +218,7 @@ bool IniFile::Section::Exists(const char *key) const
 
 bool IniFile::Section::Delete(const char *key)
 {
-	std::string* line = GetLine(key, 0, 0);
+	std::string* line = GetLine(key, 0);
 	for (std::vector<std::string>::iterator liter = lines.begin(); liter != lines.end(); ++liter)
 	{
 		if (line == &*liter)
@@ -313,7 +298,7 @@ bool IniFile::DeleteKey(const char* sectionName, const char* key)
 	Section* section = GetSection(sectionName);
 	if (!section)
 		return false;
-	std::string* line = section->GetLine(key, 0, 0);
+	std::string* line = section->GetLine(key, 0);
 	for (std::vector<std::string>::iterator liter = section->lines.begin(); liter != section->lines.end(); ++liter)
 	{
 		if (line == &(*liter))
@@ -335,7 +320,7 @@ bool IniFile::GetKeys(const char* sectionName, std::vector<std::string>& keys) c
 	for (std::vector<std::string>::const_iterator liter = section->lines.begin(); liter != section->lines.end(); ++liter)
 	{
 		std::string key;
-		ParseLine(*liter, &key, 0, 0);
+		ParseLine(*liter, &key, 0);
 		keys.push_back(key);
 	}
 	return true;

Source/Core/Common/Src/IniFile.h

@@ -25,7 +25,7 @@ class IniFile
 		bool Exists(const char *key) const;
 		bool Delete(const char *key);
 
-		std::string* GetLine(const char* key, std::string* valueOut, std::string* commentOut);
+		std::string* GetLine(const char* key, std::string* valueOut);
 		void Set(const char* key, const char* newValue);
 		void Set(const char* key, const std::string& newValue, const std::string& defaultValue);