OpenXmlPowerToolsExamples/HtmlToWmlConverter01/HtmlToWmlConverter01.cs - open-xml-powertools - Git at Google

 /***************************************************************************

 Copyright (c) Microsoft Corporation 2012-2015.

 This code is licensed using the Microsoft Public License (Ms-PL).  The text of the license can be found here:

 http://www.microsoft.com/resources/sharedsource/licensingbasics/publiclicense.mspx

 Published at http://OpenXmlDeveloper.org
 Resource Center and Documentation: http://openxmldeveloper.org/wiki/w/wiki/powertools-for-open-xml.aspx

 Developer: Eric White
 Blog: http://www.ericwhite.com
 Twitter: @EricWhiteDev
 Email: eric@ericwhite.com

 ***************************************************************************/

 using System;
 using System.IO;
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
 using System.Xml;
 using System.Xml.Linq;
 using DocumentFormat.OpenXml.Packaging;
 using DocumentFormat.OpenXml.Validation;
 using OpenXmlPowerTools;
 using OpenXmlPowerTools.HtmlToWml;

 /*******************************************************************************************
  * HtmlToWmlConverter expects the HTML to be passed as an XElement, i.e. as XML.  While the HTML test files that
  * are included in Open-Xml-PowerTools are able to be read as XML, most HTML is not able to be read as XML.
  * The best solution is to use the HtmlAgilityPack, which can parse HTML and save as XML.  The HtmlAgilityPack
  * is licensed under the Ms-PL (same as Open-Xml-PowerTools) so it is convenient to include it in your solution,
  * and thereby you can convert HTML to XML that can be processed by the HtmlToWmlConverter.
  *
  * A convenient way to get the DLL that has been checked out with HtmlToWmlConverter is to clone the repo at
  * https://github.com/EricWhiteDev/HtmlAgilityPack
  *
  * That repo contains only the DLL that has been checked out with HtmlToWmlConverter.
  *
  * Of course, you can also get the HtmlAgilityPack source and compile it to get the DLL.  You can find it at
  * http://codeplex.com/HtmlAgilityPack
  *
  * We don't include the HtmlAgilityPack in Open-Xml-PowerTools, to simplify installation.  The example files
  * in this module do not require HtmlAgilityPack to run.
 *******************************************************************************************/

 class HtmlToWmlConverterExample
 {
     static void Main(string[] args)
     {
         var n = DateTime.Now;
         var tempDi = new DirectoryInfo(string.Format("ExampleOutput-{0:00}-{1:00}-{2:00}-{3:00}{4:00}{5:00}", n.Year - 2000, n.Month, n.Day, n.Hour, n.Minute, n.Second));
         tempDi.Create();

         foreach (var file in Directory.GetFiles("../../", "*.html") /* .Where(f => f.Contains("Test-01")) */ )
         {
             ConvertToDocx(file, tempDi.FullName);
         }
     }

     private static void ConvertToDocx(string file, string destinationDir)
     {
         bool s_ProduceAnnotatedHtml = true;

         var sourceHtmlFi = new FileInfo(file);
         Console.WriteLine("Converting " + sourceHtmlFi.Name);
         var sourceImageDi = new DirectoryInfo(destinationDir);

         var destCssFi = new FileInfo(Path.Combine(destinationDir, sourceHtmlFi.Name.Replace(".html", "-2.css")));
         var destDocxFi = new FileInfo(Path.Combine(destinationDir, sourceHtmlFi.Name.Replace(".html", "-3-ConvertedByHtmlToWml.docx")));
         var annotatedHtmlFi = new FileInfo(Path.Combine(destinationDir, sourceHtmlFi.Name.Replace(".html", "-4-Annotated.txt")));

         XElement html = HtmlToWmlReadAsXElement.ReadAsXElement(sourceHtmlFi);

         string usedAuthorCss = HtmlToWmlConverter.CleanUpCss((string)html.Descendants().FirstOrDefault(d => d.Name.LocalName.ToLower() == "style"));
         File.WriteAllText(destCssFi.FullName, usedAuthorCss);

         HtmlToWmlConverterSettings settings = HtmlToWmlConverter.GetDefaultSettings();
         // image references in HTML files contain the path to the subdir that contains the images, so base URI is the name of the directory
         // that contains the HTML files
         settings.BaseUriForImages = sourceHtmlFi.DirectoryName;

         WmlDocument doc = HtmlToWmlConverter.ConvertHtmlToWml(defaultCss, usedAuthorCss, userCss, html, settings, null, s_ProduceAnnotatedHtml ? annotatedHtmlFi.FullName : null);
         doc.SaveAs(destDocxFi.FullName);
     }

     public class HtmlToWmlReadAsXElement
     {
         public static XElement ReadAsXElement(FileInfo sourceHtmlFi)
         {
             string htmlString = File.ReadAllText(sourceHtmlFi.FullName);
             XElement html = null;
             try
             {
                 html = XElement.Parse(htmlString);
             }
 #if USE_HTMLAGILITYPACK
             catch (XmlException)
             {
                 HtmlDocument hdoc = new HtmlDocument();
                 hdoc.Load(sourceHtmlFi.FullName, Encoding.Default);
                 hdoc.OptionOutputAsXml = true;
                 hdoc.Save(sourceHtmlFi.FullName, Encoding.Default);
                 StringBuilder sb = new StringBuilder(File.ReadAllText(sourceHtmlFi.FullName, Encoding.Default));
                 sb.Replace("&amp;", "&");
                 sb.Replace("&nbsp;", "\xA0");
                 sb.Replace("&quot;", "\"");
                 sb.Replace("&lt;", "~lt;");
                 sb.Replace("&gt;", "~gt;");
                 sb.Replace("&#", "~#");
                 sb.Replace("&", "&amp;");
                 sb.Replace("~lt;", "&lt;");
                 sb.Replace("~gt;", "&gt;");
                 sb.Replace("~#", "&#");
                 File.WriteAllText(sourceHtmlFi.FullName, sb.ToString(), Encoding.Default);
                 html = XElement.Parse(sb.ToString());
             }
 #else
             catch (XmlException e)
             {
                 throw e;
             }
 #endif
             // HtmlToWmlConverter expects the HTML elements to be in no namespace, so convert all elements to no namespace.
             html = (XElement)ConvertToNoNamespace(html);
             return html;
         }

         private static object ConvertToNoNamespace(XNode node)
         {
             XElement element = node as XElement;
             if (element != null)
             {
                 return new XElement(element.Name.LocalName,
                     element.Attributes().Where(a => !a.IsNamespaceDeclaration),
                     element.Nodes().Select(n => ConvertToNoNamespace(n)));
             }
             return node;
         }
     }

     static string defaultCss =
         @"html, address,
 blockquote,
 body, dd, div,
 dl, dt, fieldset, form,
 frame, frameset,
 h1, h2, h3, h4,
 h5, h6, noframes,
 ol, p, ul, center,
 dir, hr, menu, pre { display: block; unicode-bidi: embed }
 li { display: list-item }
 head { display: none }
 table { display: table }
 tr { display: table-row }
 thead { display: table-header-group }
 tbody { display: table-row-group }
 tfoot { display: table-footer-group }
 col { display: table-column }
 colgroup { display: table-column-group }
 td, th { display: table-cell }
 caption { display: table-caption }
 th { font-weight: bolder; text-align: center }
 caption { text-align: center }
 body { margin: auto; }
 h1 { font-size: 2em; margin: auto; }
 h2 { font-size: 1.5em; margin: auto; }
 h3 { font-size: 1.17em; margin: auto; }
 h4, p,
 blockquote, ul,
 fieldset, form,
 ol, dl, dir,
 menu { margin: auto }
 a { color: blue; }
 h5 { font-size: .83em; margin: auto }
 h6 { font-size: .75em; margin: auto }
 h1, h2, h3, h4,
 h5, h6, b,
 strong { font-weight: bolder }
 blockquote { margin-left: 40px; margin-right: 40px }
 i, cite, em,
 var, address { font-style: italic }
 pre, tt, code,
 kbd, samp { font-family: monospace }
 pre { white-space: pre }
 button, textarea,
 input, select { display: inline-block }
 big { font-size: 1.17em }
 small, sub, sup { font-size: .83em }
 sub { vertical-align: sub }
 sup { vertical-align: super }
 table { border-spacing: 2px; }
 thead, tbody,
 tfoot { vertical-align: middle }
 td, th, tr { vertical-align: inherit }
 s, strike, del { text-decoration: line-through }
 hr { border: 1px inset }
 ol, ul, dir,
 menu, dd { margin-left: 40px }
 ol { list-style-type: decimal }
 ol ul, ul ol,
 ul ul, ol ol { margin-top: 0; margin-bottom: 0 }
 u, ins { text-decoration: underline }
 br:before { content: ""\A""; white-space: pre-line }
 center { text-align: center }
 :link, :visited { text-decoration: underline }
 :focus { outline: thin dotted invert }
 /* Begin bidirectionality settings (do not change) */
 BDO[DIR=""ltr""] { direction: ltr; unicode-bidi: bidi-override }
 BDO[DIR=""rtl""] { direction: rtl; unicode-bidi: bidi-override }
 *[DIR=""ltr""] { direction: ltr; unicode-bidi: embed }
 *[DIR=""rtl""] { direction: rtl; unicode-bidi: embed }

 ";

     static string userCss = @"";
 }
	/***************************************************************************

	Copyright (c) Microsoft Corporation 2012-2015.

	This code is licensed using the Microsoft Public License (Ms-PL). The text of the license can be found here:

	http://www.microsoft.com/resources/sharedsource/licensingbasics/publiclicense.mspx

	Published at http://OpenXmlDeveloper.org
	Resource Center and Documentation: http://openxmldeveloper.org/wiki/w/wiki/powertools-for-open-xml.aspx

	Developer: Eric White
	Blog: http://www.ericwhite.com
	Twitter: @EricWhiteDev
	Email: eric@ericwhite.com

	***************************************************************************/

	using System;
	using System.IO;
	using System.Linq;
	using System.Runtime.InteropServices;
	using System.Text;
	using System.Xml;
	using System.Xml.Linq;
	using DocumentFormat.OpenXml.Packaging;
	using DocumentFormat.OpenXml.Validation;
	using OpenXmlPowerTools;
	using OpenXmlPowerTools.HtmlToWml;

	/*******************************************************************************************
	* HtmlToWmlConverter expects the HTML to be passed as an XElement, i.e. as XML. While the HTML test files that
	* are included in Open-Xml-PowerTools are able to be read as XML, most HTML is not able to be read as XML.
	* The best solution is to use the HtmlAgilityPack, which can parse HTML and save as XML. The HtmlAgilityPack
	* is licensed under the Ms-PL (same as Open-Xml-PowerTools) so it is convenient to include it in your solution,
	* and thereby you can convert HTML to XML that can be processed by the HtmlToWmlConverter.
	*
	* A convenient way to get the DLL that has been checked out with HtmlToWmlConverter is to clone the repo at
	* https://github.com/EricWhiteDev/HtmlAgilityPack
	*
	* That repo contains only the DLL that has been checked out with HtmlToWmlConverter.
	*
	* Of course, you can also get the HtmlAgilityPack source and compile it to get the DLL. You can find it at
	* http://codeplex.com/HtmlAgilityPack
	*
	* We don't include the HtmlAgilityPack in Open-Xml-PowerTools, to simplify installation. The example files
	* in this module do not require HtmlAgilityPack to run.
	*******************************************************************************************/

	class HtmlToWmlConverterExample
	{
	static void Main(string[] args)
	{
	var n = DateTime.Now;
	var tempDi = new DirectoryInfo(string.Format("ExampleOutput-{0:00}-{1:00}-{2:00}-{3:00}{4:00}{5:00}", n.Year - 2000, n.Month, n.Day, n.Hour, n.Minute, n.Second));
	tempDi.Create();

	foreach (var file in Directory.GetFiles("../../", ".html") / .Where(f => f.Contains("Test-01")) */ )
	{
	ConvertToDocx(file, tempDi.FullName);
	}
	}

	private static void ConvertToDocx(string file, string destinationDir)
	{
	bool s_ProduceAnnotatedHtml = true;

	var sourceHtmlFi = new FileInfo(file);
	Console.WriteLine("Converting " + sourceHtmlFi.Name);
	var sourceImageDi = new DirectoryInfo(destinationDir);

	var destCssFi = new FileInfo(Path.Combine(destinationDir, sourceHtmlFi.Name.Replace(".html", "-2.css")));
	var destDocxFi = new FileInfo(Path.Combine(destinationDir, sourceHtmlFi.Name.Replace(".html", "-3-ConvertedByHtmlToWml.docx")));
	var annotatedHtmlFi = new FileInfo(Path.Combine(destinationDir, sourceHtmlFi.Name.Replace(".html", "-4-Annotated.txt")));

	XElement html = HtmlToWmlReadAsXElement.ReadAsXElement(sourceHtmlFi);

	string usedAuthorCss = HtmlToWmlConverter.CleanUpCss((string)html.Descendants().FirstOrDefault(d => d.Name.LocalName.ToLower() == "style"));
	File.WriteAllText(destCssFi.FullName, usedAuthorCss);

	HtmlToWmlConverterSettings settings = HtmlToWmlConverter.GetDefaultSettings();
	// image references in HTML files contain the path to the subdir that contains the images, so base URI is the name of the directory
	// that contains the HTML files
	settings.BaseUriForImages = sourceHtmlFi.DirectoryName;

	WmlDocument doc = HtmlToWmlConverter.ConvertHtmlToWml(defaultCss, usedAuthorCss, userCss, html, settings, null, s_ProduceAnnotatedHtml ? annotatedHtmlFi.FullName : null);
	doc.SaveAs(destDocxFi.FullName);
	}

	public class HtmlToWmlReadAsXElement
	{
	public static XElement ReadAsXElement(FileInfo sourceHtmlFi)
	{
	string htmlString = File.ReadAllText(sourceHtmlFi.FullName);
	XElement html = null;
	try
	{
	html = XElement.Parse(htmlString);
	}
	#if USE_HTMLAGILITYPACK
	catch (XmlException)
	{
	HtmlDocument hdoc = new HtmlDocument();
	hdoc.Load(sourceHtmlFi.FullName, Encoding.Default);
	hdoc.OptionOutputAsXml = true;
	hdoc.Save(sourceHtmlFi.FullName, Encoding.Default);
	StringBuilder sb = new StringBuilder(File.ReadAllText(sourceHtmlFi.FullName, Encoding.Default));
	sb.Replace("&", "&");
	sb.Replace(" ", "\xA0");
	sb.Replace(""", "\"");
	sb.Replace("<", "~lt;");
	sb.Replace(">", "~gt;");
	sb.Replace("&#", "~#");
	sb.Replace("&", "&");
	sb.Replace("~lt;", "<");
	sb.Replace("~gt;", ">");
	sb.Replace("~#", "&#");
	File.WriteAllText(sourceHtmlFi.FullName, sb.ToString(), Encoding.Default);
	html = XElement.Parse(sb.ToString());
	}
	#else
	catch (XmlException e)
	{
	throw e;
	}
	#endif
	// HtmlToWmlConverter expects the HTML elements to be in no namespace, so convert all elements to no namespace.
	html = (XElement)ConvertToNoNamespace(html);
	return html;
	}

	private static object ConvertToNoNamespace(XNode node)
	{
	XElement element = node as XElement;
	if (element != null)
	{
	return new XElement(element.Name.LocalName,
	element.Attributes().Where(a => !a.IsNamespaceDeclaration),
	element.Nodes().Select(n => ConvertToNoNamespace(n)));
	}
	return node;
	}
	}

	static string defaultCss =
	@"html, address,
	blockquote,
	body, dd, div,
	dl, dt, fieldset, form,
	frame, frameset,
	h1, h2, h3, h4,
	h5, h6, noframes,
	ol, p, ul, center,
	dir, hr, menu, pre { display: block; unicode-bidi: embed }
	li { display: list-item }
	head { display: none }
	table { display: table }
	tr { display: table-row }
	thead { display: table-header-group }
	tbody { display: table-row-group }
	tfoot { display: table-footer-group }
	col { display: table-column }
	colgroup { display: table-column-group }
	td, th { display: table-cell }
	caption { display: table-caption }
	th { font-weight: bolder; text-align: center }
	caption { text-align: center }
	body { margin: auto; }
	h1 { font-size: 2em; margin: auto; }
	h2 { font-size: 1.5em; margin: auto; }
	h3 { font-size: 1.17em; margin: auto; }
	h4, p,
	blockquote, ul,
	fieldset, form,
	ol, dl, dir,
	menu { margin: auto }
	a { color: blue; }
	h5 { font-size: .83em; margin: auto }
	h6 { font-size: .75em; margin: auto }
	h1, h2, h3, h4,
	h5, h6, b,
	strong { font-weight: bolder }
	blockquote { margin-left: 40px; margin-right: 40px }
	i, cite, em,
	var, address { font-style: italic }
	pre, tt, code,
	kbd, samp { font-family: monospace }
	pre { white-space: pre }
	button, textarea,
	input, select { display: inline-block }
	big { font-size: 1.17em }
	small, sub, sup { font-size: .83em }
	sub { vertical-align: sub }
	sup { vertical-align: super }
	table { border-spacing: 2px; }
	thead, tbody,
	tfoot { vertical-align: middle }
	td, th, tr { vertical-align: inherit }
	s, strike, del { text-decoration: line-through }
	hr { border: 1px inset }
	ol, ul, dir,
	menu, dd { margin-left: 40px }
	ol { list-style-type: decimal }
	ol ul, ul ol,
	ul ul, ol ol { margin-top: 0; margin-bottom: 0 }
	u, ins { text-decoration: underline }
	br:before { content: ""\A""; white-space: pre-line }
	center { text-align: center }
	:link, :visited { text-decoration: underline }
	:focus { outline: thin dotted invert }
	/* Begin bidirectionality settings (do not change) */
	BDO[DIR=""ltr""] { direction: ltr; unicode-bidi: bidi-override }
	BDO[DIR=""rtl""] { direction: rtl; unicode-bidi: bidi-override }
	*[DIR=""ltr""] { direction: ltr; unicode-bidi: embed }
	*[DIR=""rtl""] { direction: rtl; unicode-bidi: embed }

	";

	static string userCss = @"";
	}