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Add version 1 of XmlTextReader-based parsing

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This is currently borken for reasons that I don't 100% understand. It needs to be tested further with a basic DAT to see why it doesn't seem to get every ROM.
This commit is contained in:
Matt Nadareski
2016-04-25 00:30:50 -07:00
parent 77b1512bff
commit 994a03826f
1 changed files with 200 additions and 0 deletions
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200
SabreHelper/RomManipulation.cs
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@@ -370,6 +370,206 @@ namespace SabreTools.Helper
return roms;
}
/// <summary>
/// Parse a DAT and return all found games and roms within
/// </summary>
/// <param name="filename">Name of the file to be parsed</param>
/// <param name="sysid">System ID for the DAT</param>
/// <param name="srcid">Source ID for the DAT</param>
/// <param name="logger">Logger object for console and/or file output</param>
/// <returns>List of RomData objects representing the found data</returns>
public static List<RomData> Parse2(string filename, int sysid, int srcid, Logger logger)
{
List<RomData> roms = new List<RomData>();
XmlTextReader xtr = GetXmlTextReader(filename, logger);
xtr.WhitespaceHandling = WhitespaceHandling.None;
bool superdat = false;
string parent = "";
if (xtr != null)
{
xtr.MoveToContent();
while (true)
{
// If we're at the end element, break
if (xtr.NodeType == XmlNodeType.EndElement && xtr.Name == parent)
{
break;
}
// We only want elements
if (xtr.NodeType != XmlNodeType.Element && xtr.NodeType != XmlNodeType.Text)
{
xtr.Read();
continue;
}
Console.WriteLine(xtr.Name + " " + xtr.NodeType);
if (xtr.Name == "datafile" || xtr.Name == "softwarelist")
{
parent = xtr.Name;
xtr.Read();
}
else if (xtr.Name == "header")
{
xtr.ReadToDescendant("name");
superdat = (xtr.ReadElementContentAsString() != null ? xtr.ReadElementContentAsString().Contains(" - SuperDAT") : false);
}
else if (xtr.Name == "machine" || xtr.Name == "game" || xtr.Name == "software")
{
string temptype = xtr.Name;
string tempname = "";
if (temptype == "software")
{
xtr.ReadToDescendant("description");
tempname = xtr.ReadElementContentAsString();
}
else
{
// There are rare cases where a malformed XML will not have the required attributes. We can only skip them.
if (xtr.AttributeCount == 0)
{
logger.Error("No attributes were found");
xtr.ReadToNextSibling(xtr.Name);
continue;
}
tempname = xtr.GetAttribute("name");
}
if (superdat)
{
tempname = Regex.Match(tempname, @".*?\\(.*)").Groups[1].Value;
}
// Get the roms from the machine
if (xtr.ReadInnerXml() != null && xtr.ReadInnerXml() != "")
{
while (!(xtr.Name == temptype && xtr.NodeType == XmlNodeType.EndElement))
{
// If we find a rom or disk, add it
if (xtr.Name == "rom" || xtr.Name == "disk")
{
// Take care of hex-sized files
long size = -1;
if (xtr.GetAttribute("size") != null && xtr.GetAttribute("size").Contains("0x"))
{
size = Convert.ToInt64(xtr.GetAttribute("size"), 16);
}
else if (xtr.GetAttribute("size") != null)
{
Int64.TryParse(xtr.GetAttribute("size"), out size);
}
roms.Add(new RomData
{
Game = tempname,
Name = xtr.GetAttribute("name"),
Type = xtr.Name,
SystemID = sysid,
SourceID = srcid,
Size = size,
CRC = (xtr.GetAttribute("crc") != null ? xtr.GetAttribute("crc").ToLowerInvariant().Trim() : ""),
MD5 = (xtr.GetAttribute("md5") != null ? xtr.GetAttribute("md5").ToLowerInvariant().Trim() : ""),
SHA1 = (xtr.GetAttribute("sha1") != null ? xtr.GetAttribute("sha1").ToLowerInvariant().Trim() : ""),
});
xtr.Read();
// If we hit end of file, break
if (xtr.EOF)
{
break;
}
}
// If we find the signs of a software list, traverse the children
else if (xtr.NodeType == XmlNodeType.Element && xtr.Name == "part" && xtr.ReadInnerXml() != null && xtr.ReadInnerXml() != "")
{
while (!(xtr.Name == "part" && xtr.NodeType == XmlNodeType.EndElement))
{
// If we find a dataarea, traverse the children
if (xtr.NodeType == XmlNodeType.Element && xtr.Name == "dataarea")
{
while (!(xtr.Name == "dataarea" && xtr.NodeType == XmlNodeType.EndElement))
{
// If we find a rom or disk, add it
if ((xtr.Name == "rom" || xtr.Name == "disk") && xtr.GetAttribute("name") != null)
{
// Take care of hex-sized files
long size = -1;
if (xtr.GetAttribute("size") != null && xtr.GetAttribute("size").Contains("0x"))
{
size = Convert.ToInt64(xtr.GetAttribute("size"), 16);
}
else if (xtr.GetAttribute("size") != null)
{
Int64.TryParse(xtr.GetAttribute("size"), out size);
}
roms.Add(new RomData
{
Game = tempname,
Name = xtr.GetAttribute("name"),
Type = xtr.Name,
SystemID = sysid,
SourceID = srcid,
Size = size,
CRC = (xtr.GetAttribute("crc") != null ? xtr.GetAttribute("crc").ToLowerInvariant().Trim() : ""),
MD5 = (xtr.GetAttribute("md5") != null ? xtr.GetAttribute("md5").ToLowerInvariant().Trim() : ""),
SHA1 = (xtr.GetAttribute("sha1") != null ? xtr.GetAttribute("sha1").ToLowerInvariant().Trim() : ""),
});
}
xtr.Read();
// If we hit end of file, break
if (xtr.EOF)
{
break;
}
}
}
xtr.Read();
// If we hit end of file, break
if (xtr.EOF)
{
break;
}
}
}
else
{
xtr.Read();
}
}
}
xtr.ReadToNextSibling(temptype);
}
else
{
xtr.Read();
}
// If we hit end of file, break
if (xtr.EOF)
{
break;
}
// If we're at the end element, break
if (xtr.NodeType == XmlNodeType.EndElement && xtr.Name == parent)
{
break;
}
}
}
logger.Log("Outputting roms");
return roms;
}
}
/// <summary>
/// Merge an arbitrary set of ROMs based on the supplied information
/// </summary>