protected override void VisitTextPart(TextPart entity)
{
TextConverter converter;
string header, footer;
if (_body != null)
{
// since we've already found the body, treat this as an attachment
_attachments.Add(entity);
return;
}
GetHeaderFooter(out header, out footer);
if (entity.IsHtml)
{
converter = new HtmlToHtml
{
Header = UIStrings.MarkOfTheWeb + Environment.NewLine,
HeaderFormat = HeaderFooterFormat.Html,
HtmlTagCallback = HtmlTagCallback
};
}
else if (entity.IsFlowed)
{
var flowed = new FlowedToHtml
{
Header = UIStrings.MarkOfTheWeb + Environment.NewLine + header,
HeaderFormat = HeaderFooterFormat.Html,
Footer = footer,
FooterFormat = HeaderFooterFormat.Html
};
string delsp;
if (entity.ContentType.Parameters.TryGetValue("delsp", out delsp))
flowed.DeleteSpace = delsp.ToLowerInvariant() == "yes";
converter = flowed;
}
else
{
converter = new TextToHtml
{
Header = UIStrings.MarkOfTheWeb + Environment.NewLine + header,
HeaderFormat = HeaderFooterFormat.Html,
Footer = footer,
FooterFormat = HeaderFooterFormat.Html
};
}
string text = entity.Text;
_body = converter.Convert(entity.Text);
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert (TextReader reader, TextWriter writer)
{
if (reader == null)
throw new ArgumentNullException (nameof (reader));
if (writer == null)
throw new ArgumentNullException (nameof (writer));
if (!string.IsNullOrEmpty (Header)) {
if (HeaderFormat == HeaderFooterFormat.Text) {
var converter = new TextToHtml ();
using (var sr = new StringReader (Header))
converter.Convert (sr, writer);
} else {
writer.Write (Header);
}
}
using (var htmlWriter = new HtmlWriter (writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List<HtmlToHtmlTagContext> ();
var tokenizer = new HtmlTokenizer (reader);
HtmlToHtmlTagContext ctx;
HtmlToken token;
while (tokenizer.ReadNextToken (out token)) {
switch (token.Kind) {
default:
if (!SuppressContent (stack))
htmlWriter.WriteToken (token);
break;
case HtmlTokenKind.Tag:
var tag = (HtmlTagToken) token;
if (!tag.IsEndTag) {
//if (NormalizeHtml && AutoClosingTags.Contains (startTag.TagName) &&
// (ctx = Pop (stack, startTag.TagName)) != null &&
// ctx.InvokeCallbackForEndTag && !SuppressContent (stack)) {
// var value = string.Format ("</{0}>", ctx.TagName);
// var name = ctx.TagName;
//
// ctx = new HtmlToHtmlTagContext (new HtmlTokenTag (HtmlTokenKind.EndTag, name, value)) {
// InvokeCallbackForEndTag = ctx.InvokeCallbackForEndTag,
// SuppressInnerContent = ctx.SuppressInnerContent,
// DeleteEndTag = ctx.DeleteEndTag,
// DeleteTag = ctx.DeleteTag
// };
// callback (ctx, htmlWriter);
//}
if (!tag.IsEmptyElement) {
ctx = new HtmlToHtmlTagContext (tag);
if (FilterHtml && ctx.TagId == HtmlTagId.Script) {
ctx.SuppressInnerContent = true;
ctx.DeleteEndTag = true;
ctx.DeleteTag = true;
} else if (!SuppressContent (stack)) {
callback (ctx, htmlWriter);
}
stack.Add (ctx);
} else if (!SuppressContent (stack)) {
ctx = new HtmlToHtmlTagContext (tag);
if (!FilterHtml || ctx.TagId != HtmlTagId.Script)
callback (ctx, htmlWriter);
}
} else {
if ((ctx = Pop (stack, tag.Name)) != null) {
if (!SuppressContent (stack)) {
if (ctx.InvokeCallbackForEndTag) {
ctx = new HtmlToHtmlTagContext (tag) {
InvokeCallbackForEndTag = ctx.InvokeCallbackForEndTag,
SuppressInnerContent = ctx.SuppressInnerContent,
DeleteEndTag = ctx.DeleteEndTag,
DeleteTag = ctx.DeleteTag
};
callback (ctx, htmlWriter);
} else if (!ctx.DeleteEndTag) {
htmlWriter.WriteEndTag (tag.Name);
}
}
} else if (!SuppressContent (stack)) {
ctx = new HtmlToHtmlTagContext (tag);
callback (ctx, htmlWriter);
}
}
break;
}
}
htmlWriter.Flush ();
}
if (!string.IsNullOrEmpty (Footer)) {
if (FooterFormat == HeaderFooterFormat.Text) {
var converter = new TextToHtml ();
using (var sr = new StringReader (Footer))
converter.Convert (sr, writer);
} else {
writer.Write (Footer);
}
}
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert(TextReader reader, TextWriter writer)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (!string.IsNullOrEmpty(Header))
{
if (HeaderFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml();
using (var sr = new StringReader(Header))
converter.Convert(sr, writer);
}
else
{
writer.Write(Header);
}
}
using (var htmlWriter = new HtmlWriter(writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List <FlowedToHtmlTagContext> ();
var para = new StringBuilder();
int currentQuoteDepth = 0;
int paraQuoteDepth = -1;
int quoteDepth;
string line;
while ((line = reader.ReadLine()) != null)
{
// unquote the line
line = Unquote(line, out quoteDepth);
// remove space-stuffing
if (line.Length > 0 && line[0] == ' ')
{
line = line.Substring(1);
}
if (para.Length == 0)
{
paraQuoteDepth = quoteDepth;
}
else if (quoteDepth != paraQuoteDepth)
{
// Note: according to rfc3676, when a folded line has a different quote
// depth than the previous line, then quote-depth rules win and we need
// to treat this as a new paragraph.
WriteParagraph(htmlWriter, stack, ref currentQuoteDepth, para, paraQuoteDepth);
paraQuoteDepth = quoteDepth;
para.Length = 0;
}
para.Append(line);
if (line.Length == 0 || line[line.Length - 1] != ' ')
{
// line did not end with a space, so the next line will start a new paragraph
WriteParagraph(htmlWriter, stack, ref currentQuoteDepth, para, paraQuoteDepth);
paraQuoteDepth = 0;
para.Length = 0;
}
else if (DeleteSpace)
{
// Note: lines ending with a space mean that the next line is a continuation
para.Length--;
}
}
for (int i = stack.Count; i > 0; i--)
{
var ctx = stack[i - 1];
ctx.SetIsEndTag(true);
if (ctx.InvokeCallbackForEndTag)
{
callback(ctx, htmlWriter);
}
else
{
ctx.WriteTag(htmlWriter);
}
}
htmlWriter.Flush();
}
if (!string.IsNullOrEmpty(Footer))
{
if (FooterFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml();
using (var sr = new StringReader(Footer))
converter.Convert(sr, writer);
}
else
{
writer.Write(Footer);
}
}
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert(TextReader reader, TextWriter writer)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (!string.IsNullOrEmpty(Header))
{
if (HeaderFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml {
OutputHtmlFragment = true
};
using (var sr = new StringReader(Header))
converter.Convert(sr, writer);
}
else
{
writer.Write(Header);
}
}
using (var htmlWriter = new HtmlWriter(writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List <HtmlToHtmlTagContext> ();
var tokenizer = new HtmlTokenizer(reader);
HtmlToHtmlTagContext ctx;
HtmlToken token;
while (tokenizer.ReadNextToken(out token))
{
switch (token.Kind)
{
default:
if (!SuppressContent(stack))
{
htmlWriter.WriteToken(token);
}
break;
case HtmlTokenKind.Comment:
if (!FilterComments && !SuppressContent(stack))
{
htmlWriter.WriteToken(token);
}
break;
case HtmlTokenKind.Tag:
var tag = (HtmlTagToken)token;
if (!tag.IsEndTag)
{
//if (NormalizeHtml && AutoClosingTags.Contains (startTag.TagName) &&
// (ctx = Pop (stack, startTag.TagName)) != null &&
// ctx.InvokeCallbackForEndTag && !SuppressContent (stack)) {
// var value = string.Format ("</{0}>", ctx.TagName);
// var name = ctx.TagName;
//
// ctx = new HtmlToHtmlTagContext (new HtmlTokenTag (HtmlTokenKind.EndTag, name, value)) {
// InvokeCallbackForEndTag = ctx.InvokeCallbackForEndTag,
// SuppressInnerContent = ctx.SuppressInnerContent,
// DeleteEndTag = ctx.DeleteEndTag,
// DeleteTag = ctx.DeleteTag
// };
// callback (ctx, htmlWriter);
//}
if (!tag.IsEmptyElement)
{
ctx = new HtmlToHtmlTagContext(tag);
if (FilterHtml && ctx.TagId == HtmlTagId.Script)
{
ctx.SuppressInnerContent = true;
ctx.DeleteEndTag = true;
ctx.DeleteTag = true;
}
else if (!SuppressContent(stack))
{
callback(ctx, htmlWriter);
}
stack.Add(ctx);
}
else if (!SuppressContent(stack))
{
ctx = new HtmlToHtmlTagContext(tag);
if (!FilterHtml || ctx.TagId != HtmlTagId.Script)
{
callback(ctx, htmlWriter);
}
}
}
else
{
if ((ctx = Pop(stack, tag.Name)) != null)
{
if (!SuppressContent(stack))
{
if (ctx.InvokeCallbackForEndTag)
{
ctx = new HtmlToHtmlTagContext(tag)
{
InvokeCallbackForEndTag = ctx.InvokeCallbackForEndTag,
SuppressInnerContent = ctx.SuppressInnerContent,
DeleteEndTag = ctx.DeleteEndTag,
DeleteTag = ctx.DeleteTag
};
callback(ctx, htmlWriter);
}
else if (!ctx.DeleteEndTag)
{
htmlWriter.WriteEndTag(tag.Name);
}
}
}
else if (!SuppressContent(stack))
{
ctx = new HtmlToHtmlTagContext(tag);
callback(ctx, htmlWriter);
}
}
break;
}
}
htmlWriter.Flush();
}
if (!string.IsNullOrEmpty(Footer))
{
if (FooterFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml {
OutputHtmlFragment = true
};
using (var sr = new StringReader(Footer))
converter.Convert(sr, writer);
}
else
{
writer.Write(Footer);
}
}
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert (TextReader reader, TextWriter writer)
{
if (reader == null)
throw new ArgumentNullException (nameof (reader));
if (writer == null)
throw new ArgumentNullException (nameof (writer));
if (!string.IsNullOrEmpty (Header)) {
if (HeaderFormat == HeaderFooterFormat.Text) {
var converter = new TextToHtml ();
using (var sr = new StringReader (Header))
converter.Convert (sr, writer);
} else {
writer.Write (Header);
}
}
using (var htmlWriter = new HtmlWriter (writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List<FlowedToHtmlTagContext> ();
var para = new StringBuilder ();
int currentQuoteDepth = 0;
int paraQuoteDepth = -1;
int quoteDepth;
string line;
while ((line = reader.ReadLine ()) != null) {
// unquote the line
line = Unquote (line, out quoteDepth);
// remove space-stuffing
if (line.Length > 0 && line[0] == ' ')
line = line.Substring (1);
if (para.Length == 0) {
paraQuoteDepth = quoteDepth;
} else if (quoteDepth != paraQuoteDepth) {
// Note: according to rfc3676, when a folded line has a different quote
// depth than the previous line, then quote-depth rules win and we need
// to treat this as a new paragraph.
WriteParagraph (htmlWriter, stack, ref currentQuoteDepth, para, paraQuoteDepth);
paraQuoteDepth = quoteDepth;
para.Length = 0;
}
para.Append (line);
if (line.Length == 0 || line[line.Length - 1] != ' ') {
// line did not end with a space, so the next line will start a new paragraph
WriteParagraph (htmlWriter, stack, ref currentQuoteDepth, para, paraQuoteDepth);
paraQuoteDepth = 0;
para.Length = 0;
} else if (DeleteSpace) {
// Note: lines ending with a space mean that the next line is a continuation
para.Length--;
}
}
for (int i = stack.Count; i > 0; i--) {
var ctx = stack[i - 1];
ctx.SetIsEndTag (true);
if (ctx.InvokeCallbackForEndTag)
callback (ctx, htmlWriter);
else
ctx.WriteTag (htmlWriter);
}
htmlWriter.Flush ();
}
if (!string.IsNullOrEmpty (Footer)) {
if (FooterFormat == HeaderFooterFormat.Text) {
var converter = new TextToHtml ();
using (var sr = new StringReader (Footer))
converter.Convert (sr, writer);
} else {
writer.Write (Footer);
}
}
}
void RenderText (TextPart text)
{
string html;
if (text.IsHtml) {
// the text content is already in HTML format
html = text.Text;
} else if (text.IsFlowed) {
var converter = new FlowedToHtml ();
string delsp;
// the delsp parameter specifies whether or not to delete spaces at the end of flowed lines
if (!text.ContentType.Parameters.TryGetValue ("delsp", out delsp))
delsp = "no";
if (string.Compare (delsp, "yes", StringComparison.OrdinalIgnoreCase) == 0)
converter.DeleteSpace = true;
html = converter.Convert (text.Text);
} else {
html = new TextToHtml ().Convert (text.Text);
}
webView.LoadHtmlString (html, new NSUrl ("index.html"));
}
protected override void VisitTextPart (TextPart entity)
{
TextConverter converter;
if (body != null) {
// since we've already found the body, treat this as an attachment
attachments.Add (entity);
return;
}
if (entity.IsHtml) {
converter = new HtmlToHtml {
HtmlTagCallback = HtmlTagCallback
};
} else if (entity.IsFlowed) {
var flowed = new FlowedToHtml ();
string delsp;
if (entity.ContentType.Parameters.TryGetValue ("delsp", out delsp))
flowed.DeleteSpace = delsp.ToLowerInvariant () == "yes";
converter = flowed;
} else {
converter = new TextToHtml ();
}
body = converter.Convert (entity.Text);
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert(TextReader reader, TextWriter writer)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (!OutputHtmlFragment)
{
writer.Write("<html><body>");
}
if (!string.IsNullOrEmpty(Header))
{
if (HeaderFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml {
OutputHtmlFragment = true
};
using (var sr = new StringReader(Header))
converter.Convert(sr, writer);
}
else
{
writer.Write(Header);
}
}
using (var htmlWriter = new HtmlWriter(writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List <TextToHtmlTagContext> ();
int currentQuoteDepth = 0, quoteDepth;
TextToHtmlTagContext ctx;
string line;
while ((line = reader.ReadLine()) != null)
{
line = Unquote(line, out quoteDepth);
while (currentQuoteDepth < quoteDepth)
{
ctx = new TextToHtmlTagContext(HtmlTagId.BlockQuote);
callback(ctx, htmlWriter);
currentQuoteDepth++;
stack.Add(ctx);
}
while (quoteDepth < currentQuoteDepth)
{
ctx = stack[stack.Count - 1];
stack.RemoveAt(stack.Count - 1);
if (!SuppressContent(stack) && !ctx.DeleteEndTag)
{
ctx.SetIsEndTag(true);
if (ctx.InvokeCallbackForEndTag)
{
callback(ctx, htmlWriter);
}
else
{
ctx.WriteTag(htmlWriter);
}
}
if (ctx.TagId == HtmlTagId.BlockQuote)
{
currentQuoteDepth--;
}
}
if (!SuppressContent(stack))
{
WriteText(htmlWriter, line);
ctx = new TextToHtmlTagContext(HtmlTagId.Br);
callback(ctx, htmlWriter);
}
}
for (int i = stack.Count; i > 0; i--)
{
ctx = stack[i - 1];
ctx.SetIsEndTag(true);
if (ctx.InvokeCallbackForEndTag)
{
callback(ctx, htmlWriter);
}
else
{
ctx.WriteTag(htmlWriter);
}
}
htmlWriter.Flush();
}
if (!string.IsNullOrEmpty(Footer))
{
if (FooterFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml {
OutputHtmlFragment = true
};
using (var sr = new StringReader(Footer))
converter.Convert(sr, writer);
}
else
{
writer.Write(Footer);
}
}
if (!OutputHtmlFragment)
{
writer.Write("</body></html>");
}
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert (TextReader reader, TextWriter writer)
{
if (reader == null)
throw new ArgumentNullException (nameof (reader));
if (writer == null)
throw new ArgumentNullException (nameof (writer));
if (!string.IsNullOrEmpty (Header)) {
if (HeaderFormat == HeaderFooterFormat.Text) {
var converter = new TextToHtml ();
using (var sr = new StringReader (Header))
converter.Convert (sr, writer);
} else {
writer.Write (Header);
}
}
using (var htmlWriter = new HtmlWriter (writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List<TextToHtmlTagContext> ();
int currentQuoteDepth = 0, quoteDepth;
TextToHtmlTagContext ctx;
string line;
while ((line = reader.ReadLine ()) != null) {
line = Unquote (line, out quoteDepth);
while (currentQuoteDepth < quoteDepth) {
ctx = new TextToHtmlTagContext (HtmlTagId.BlockQuote);
callback (ctx, htmlWriter);
currentQuoteDepth++;
stack.Add (ctx);
}
while (quoteDepth < currentQuoteDepth) {
ctx = stack[stack.Count - 1];
stack.RemoveAt (stack.Count - 1);
if (!SuppressContent (stack) && !ctx.DeleteEndTag) {
ctx.SetIsEndTag (true);
if (ctx.InvokeCallbackForEndTag)
callback (ctx, htmlWriter);
else
ctx.WriteTag (htmlWriter);
}
if (ctx.TagId == HtmlTagId.BlockQuote)
currentQuoteDepth--;
}
if (!SuppressContent (stack)) {
WriteText (htmlWriter, line);
ctx = new TextToHtmlTagContext (HtmlTagId.Br);
callback (ctx, htmlWriter);
}
}
for (int i = stack.Count; i > 0; i--) {
ctx = stack[i - 1];
ctx.SetIsEndTag (true);
if (ctx.InvokeCallbackForEndTag)
callback (ctx, htmlWriter);
else
ctx.WriteTag (htmlWriter);
}
htmlWriter.Flush ();
}
if (!string.IsNullOrEmpty (Footer)) {
if (FooterFormat == HeaderFooterFormat.Text) {
var converter = new TextToHtml ();
using (var sr = new StringReader (Footer))
converter.Convert (sr, writer);
} else {
writer.Write (Footer);
}
}
}
public void TestSimpleTextWithUrlsToHtml ()
{
const string expected = "Check out <a href=\"http://www.xamarin.com\">http://www.xamarin.com</a> - it's amazing!<br/>";
string text = "Check out http://www.xamarin.com - it's amazing!" + Environment.NewLine;
var converter = new TextToHtml ();
var result = converter.Convert (text);
Assert.AreEqual (expected, result);
}
public void TestSimpleTextToHtml ()
{
const string expected = "This is some sample text. This is line #1.<br/>" +
"This is line #2.<br/>" +
"And this is line #3.<br/>";
string text = "This is some sample text. This is line #1." + Environment.NewLine +
"This is line #2." + Environment.NewLine +
"And this is line #3." + Environment.NewLine;
var converter = new TextToHtml ();
var result = converter.Convert (text);
Assert.AreEqual (expected, result);
}
protected internal override void VisitTextPart (TextPart entity)
{
TextConverter converter;
if (body != null) {
base.VisitTextPart (entity);
return;
}
if (entity.IsHtml) {
converter = new HtmlToHtml {
HtmlTagCallback = HtmlTagCallback
};
} else if (entity.IsFlowed) {
var flowed = new FlowedToHtml ();
string delsp;
if (entity.ContentType.Parameters.TryGetValue ("delsp", out delsp))
flowed.DeleteSpace = delsp.ToLowerInvariant () == "yes";
converter = flowed;
} else {
converter = new TextToHtml ();
}
body = converter.Convert (entity.Text);
base.VisitTextPart (entity);
}
/// <summary>
/// Convert the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </summary>
/// <remarks>
/// Converts the contents of <paramref name="reader"/> from the <see cref="InputFormat"/> to the
/// <see cref="OutputFormat"/> and uses the <paramref name="writer"/> to write the resulting text.
/// </remarks>
/// <param name="reader">The text reader.</param>
/// <param name="writer">The text writer.</param>
/// <exception cref="System.ArgumentNullException">
/// <para><paramref name="reader"/> is <c>null</c>.</para>
/// <para>-or-</para>
/// <para><paramref name="writer"/> is <c>null</c>.</para>
/// </exception>
public override void Convert(TextReader reader, TextWriter writer)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
if (!string.IsNullOrEmpty(Header))
{
if (HeaderFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml();
using (var sr = new StringReader(Header))
converter.Convert(sr, writer);
}
else
{
writer.Write(Header);
}
}
using (var htmlWriter = new HtmlWriter(writer)) {
var callback = HtmlTagCallback ?? DefaultHtmlTagCallback;
var stack = new List <HtmlToHtmlTagContext> ();
var tokenizer = new HtmlTokenizer(reader);
HtmlToHtmlTagContext ctx;
HtmlToken token;
while (tokenizer.ReadNextToken(out token))
{
switch (token.Kind)
{
default:
if (!SuppressContent(stack))
{
htmlWriter.WriteToken(token);
}
break;
case HtmlTokenKind.Tag:
var tag = (HtmlTagToken)token;
if (!tag.IsEndTag)
{
if (!tag.IsEmptyElement)
{
ctx = new HtmlToHtmlTagContext(tag);
if (FilterHtml && ctx.TagId == HtmlTagId.Script)
{
ctx.SuppressInnerContent = true;
ctx.DeleteEndTag = true;
ctx.DeleteTag = true;
}
else if (!SuppressContent(stack))
{
callback(ctx, htmlWriter);
}
stack.Add(ctx);
}
else if (!SuppressContent(stack))
{
ctx = new HtmlToHtmlTagContext(tag);
if (!FilterHtml || ctx.TagId != HtmlTagId.Script)
{
callback(ctx, htmlWriter);
}
}
}
else
{
if ((ctx = Pop(stack, tag.Name)) != null)
{
if (!SuppressContent(stack))
{
if (ctx.InvokeCallbackForEndTag)
{
ctx = new HtmlToHtmlTagContext(tag)
{
InvokeCallbackForEndTag = ctx.InvokeCallbackForEndTag,
SuppressInnerContent = ctx.SuppressInnerContent,
DeleteEndTag = ctx.DeleteEndTag,
DeleteTag = ctx.DeleteTag
};
callback(ctx, htmlWriter);
}
else if (!ctx.DeleteEndTag)
{
htmlWriter.WriteEndTag(tag.Name);
}
}
}
else if (!SuppressContent(stack))
{
ctx = new HtmlToHtmlTagContext(tag);
callback(ctx, htmlWriter);
}
}
break;
case HtmlTokenKind.Comment:
if (!StripComments)
{
htmlWriter.WriteToken(token);
}
break;
}
}
htmlWriter.Flush();
}
if (!string.IsNullOrEmpty(Footer))
{
if (FooterFormat == HeaderFooterFormat.Text)
{
var converter = new TextToHtml();
using (var sr = new StringReader(Footer))
converter.Convert(sr, writer);
}
else
{
writer.Write(Footer);
}
}
}