Opentk/Source/Bind/DocProcessor.cs
2009-03-08 00:46:58 +00:00

53 lines
1.8 KiB
C#

using System;
using System.Collections.Generic;
using System.Text;
using System.Text.RegularExpressions;
using System.IO;
using System.Xml;
using System.Xml.Xsl;
using System.Xml.XPath;
namespace Bind
{
class DocProcessor
{
static readonly Regex remove_doctype = new Regex("<!DOCTYPE.*/>", RegexOptions.Compiled | RegexOptions.Multiline);
static readonly Regex remove_mathml = new Regex(@"<(mml:math)[^>]*?>(?:.|\n)*?</\s*\1\s*>",
RegexOptions.Compiled | RegexOptions.Multiline | RegexOptions.IgnorePatternWhitespace);
static readonly StreamWriter output_stream = new StreamWriter(new MemoryStream());
static readonly XslCompiledTransform xslt = new System.Xml.Xsl.XslCompiledTransform();
static readonly XmlReaderSettings settings = new XmlReaderSettings();
public DocProcessor(string transform_file)
{
xslt.Load(transform_file);
settings.ProhibitDtd = false;
settings.XmlResolver = null;
}
public string ProcessFile(string file)
{
string text = File.ReadAllText(file);
Match m = remove_mathml.Match(text);
while (m.Length > 0)
{
text = text.Remove(m.Index, m.Length);
m = remove_mathml.Match(text);
}
//text = remove_doctype.Replace(sb.ToString(), String.Empty, 1), String.Empty);
// The pure XmlReader is ~20x faster than the XmlTextReader.
var doc = XmlReader.Create(new StringReader(text), settings);
//var doc = new XmlTextReader(new StringReader(text));
using (StringWriter sw = new StringWriter())
{
xslt.Transform(doc, null, sw);
return sw.ToString();
}
}
}
}