internal void RenderImg(Markdown m, StringBuilder b, string alt_text, List <string> specialAttributes)
{
HtmlTag tag = new HtmlTag("img");
// encode url
StringBuilder sb = m.GetStringBuilder();
Utils.SmartHtmlEncodeAmpsAndAngles(sb, Url);
tag.attributes["src"] = sb.ToString();
// encode alt text
if (!String.IsNullOrEmpty(alt_text))
{
sb.Length = 0;
Utils.SmartHtmlEncodeAmpsAndAngles(sb, alt_text);
tag.attributes["alt"] = sb.ToString();
}
// encode title
if (!String.IsNullOrEmpty(Title))
{
sb.Length = 0;
Utils.SmartHtmlEncodeAmpsAndAngles(sb, Title);
tag.attributes["title"] = sb.ToString();
}
if (specialAttributes.Any())
{
LinkDefinition.HandleSpecialAttributes(specialAttributes, sb, tag);
}
tag.closed = true;
m.OnPrepareImage(tag, m.RenderingTitledImage);
tag.RenderOpening(b);
}
public void DoubleQuoteTitle()
{
r = LinkDefinition.ParseLinkDefinition("[id]: url.com \"my title\"", false);
Assert.IsNotNull(r);
Assert.AreEqual(r.ID, "id");
Assert.AreEqual(r.Url, "url.com");
Assert.AreEqual(r.Title, "my title");
}
public void ParenthesizedTitle()
{
r = LinkDefinition.ParseLinkDefinition("[id]: url.com (my title)", false);
Assert.IsNotNull(r);
Assert.AreEqual(r.ID, "id");
Assert.AreEqual(r.Url, "url.com");
Assert.AreEqual(r.Title, "my title");
}
public void NoTitle()
{
r = LinkDefinition.ParseLinkDefinition("[id]: url.com", false);
Assert.IsNotNull(r);
Assert.AreEqual(r.ID, "id");
Assert.AreEqual(r.Url, "url.com");
Assert.AreEqual(r.Title, null);
}
public void MultiLine()
{
r = LinkDefinition.ParseLinkDefinition("[id]:\n\t http://www.site.com \n\t (my title)", false);
Assert.IsNotNull(r);
Assert.AreEqual(r.ID, "id");
Assert.AreEqual(r.Url, "http://www.site.com");
Assert.AreEqual(r.Title, "my title");
}
public void AngleBracketedUrl()
{
r = LinkDefinition.ParseLinkDefinition("[id]: <url.com> (my title)", false);
Assert.IsNotNull(r);
Assert.AreEqual(r.ID, "id");
Assert.AreEqual(r.Url, "url.com");
Assert.AreEqual(r.Title, "my title");
}
public LinkInfo(LinkDefinition def, string link_text, List<string> specialAttributes )
{
this.Definition = def;
this.LinkText = link_text;
this.SpecialAttributes = new List<string>();
if(specialAttributes != null)
{
this.SpecialAttributes.AddRange(specialAttributes);
}
}
public void AngleBracketedUrl()
{
string str = "[id]: <url.com> (my title)";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.id, "id");
Assert.AreEqual(r.url, "url.com");
Assert.AreEqual(r.title, "my title");
}
public LinkInfo(LinkDefinition def, string link_text, List <string> specialAttributes)
{
this.Definition = def;
this.LinkText = link_text;
this.SpecialAttributes = new List <string>();
if (specialAttributes != null)
{
this.SpecialAttributes.AddRange(specialAttributes);
}
}
public void DoubleQuoteTitle()
{
string str = "[id]: url.com \"my title\"";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.id, "id");
Assert.AreEqual(r.url, "url.com");
Assert.AreEqual(r.title, "my title");
}
public void NoTitle()
{
string str = "[id]: url.com";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.Id, "id");
Assert.AreEqual(r.Url, "url.com");
Assert.AreEqual(r.Title, string.Empty);
}
public void MultiLine()
{
string str = "[id]:\n\t http://www.site.com \n\t (my title)";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.id, "id");
Assert.AreEqual(r.url, "http://www.site.com");
Assert.AreEqual(r.title, "my title");
}
public void NoTitle()
{
string str = "[id]: url.com";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.id, "id");
Assert.AreEqual(r.url, "url.com");
Assert.AreEqual(r.title, null);
}
internal void RenderLink(Markdown m, StringBuilder b, string link_text, List <string> specialAttributes)
{
if (this.Url.StartsWith("mailto:"))
{
b.Append("<a href=\"");
Utils.HtmlRandomize(b, this.Url);
b.Append('\"');
if (!String.IsNullOrEmpty(this.Title))
{
b.Append(" title=\"");
Utils.SmartHtmlEncodeAmpsAndAngles(b, this.Title);
b.Append('\"');
}
b.Append('>');
Utils.HtmlRandomize(b, link_text);
b.Append("</a>");
}
else
{
HtmlTag tag = new HtmlTag("a");
// encode url
StringBuilder sb = m.GetStringBuilder();
Utils.SmartHtmlEncodeAmpsAndAngles(sb, this.Url);
tag.attributes["href"] = sb.ToString();
// encode title
if (!String.IsNullOrEmpty(this.Title))
{
sb.Length = 0;
Utils.SmartHtmlEncodeAmpsAndAngles(sb, this.Title);
tag.attributes["title"] = sb.ToString();
}
if (specialAttributes.Any())
{
LinkDefinition.HandleSpecialAttributes(specialAttributes, sb, tag);
}
// Do user processing
m.OnPrepareLink(tag);
// Render the opening tag
tag.RenderOpening(b);
b.Append(link_text); // Link text already escaped by SpanFormatter
b.Append("</a>");
}
}
// Parse just the link target
// For reference link definition, this is the bit after "[id]: thisbit"
// For inline link, this is the bit in the parens: [link text](thisbit)
internal static LinkDefinition ParseLinkTarget(StringScanner p, string id, bool ExtraMode)
{
// Skip whitespace
p.SkipWhitespace();
// End of string?
if (p.eol)
{
return(null);
}
// Create the link definition
var r = new LinkDefinition(id);
// Is the url enclosed in angle brackets
if (p.SkipChar('<'))
{
// Extract the url
p.Mark();
// Find end of the url
while (p.current != '>')
{
if (p.eof)
{
return(null);
}
p.SkipEscapableChar(ExtraMode);
}
string url = p.Extract();
if (!p.SkipChar('>'))
{
return(null);
}
// Unescape it
r.url = Utils.UnescapeString(url.Trim(), ExtraMode);
// Skip whitespace
p.SkipWhitespace();
}
else
{
// Find end of the url
p.Mark();
int paren_depth = 1;
while (!p.eol)
{
char ch = p.current;
if (char.IsWhiteSpace(ch))
{
break;
}
if (id == null)
{
if (ch == '(')
{
paren_depth++;
}
else if (ch == ')')
{
paren_depth--;
if (paren_depth == 0)
{
break;
}
}
}
p.SkipEscapableChar(ExtraMode);
}
r.url = Utils.UnescapeString(p.Extract().Trim(), ExtraMode);
}
p.SkipLinespace();
// End of inline target
if (p.DoesMatch(')'))
{
return(r);
}
bool bOnNewLine = p.eol;
int posLineEnd = p.position;
if (p.eol)
{
p.SkipEol();
p.SkipLinespace();
}
// Work out what the title is delimited with
char delim;
switch (p.current)
{
case '\'':
case '\"':
delim = p.current;
break;
case '(':
delim = ')';
break;
default:
if (bOnNewLine)
{
p.position = posLineEnd;
return(r);
}
else
{
return(null);
}
}
// Skip the opening title delimiter
p.SkipForward(1);
// Find the end of the title
p.Mark();
while (true)
{
if (p.eol)
{
return(null);
}
if (p.current == delim)
{
if (delim != ')')
{
int savepos = p.position;
// Check for embedded quotes in title
// Skip the quote and any trailing whitespace
p.SkipForward(1);
p.SkipLinespace();
// Next we expect either the end of the line for a link definition
// or the close bracket for an inline link
if ((id == null && p.current != ')') ||
(id != null && !p.eol))
{
continue;
}
p.position = savepos;
}
// End of title
break;
}
p.SkipEscapableChar(ExtraMode);
}
// Store the title
r.title = Utils.UnescapeString(p.Extract(), ExtraMode);
// Skip closing quote
p.SkipForward(1);
// Done!
return(r);
}
// Process [link] and ![image] directives
Token ProcessLinkOrImageOrFootnote()
{
// Link or image?
TokenType token_type = SkipChar('!') ? TokenType.img : TokenType.link;
// Opening '['
if (!SkipChar('['))
{
return(null);
}
// Is it a foonote?
var savepos = position;
if (m_Markdown.ExtraMode && token_type == TokenType.link && SkipChar('^'))
{
SkipLinespace();
// Parse it
string id;
if (SkipFootnoteID(out id) && SkipChar(']'))
{
// Look it up and create footnote reference token
int footnote_index = m_Markdown.ClaimFootnote(id);
if (footnote_index >= 0)
{
// Yes it's a footnote
return(CreateToken(TokenType.footnote, new FootnoteReference(footnote_index, id)));
}
}
// Rewind
position = savepos;
}
if (DisableLinks && token_type == TokenType.link)
{
return(null);
}
bool ExtraMode = m_Markdown.ExtraMode;
// Find the closing square bracket, allowing for nesting, watching for
// escapable characters
Mark();
int depth = 1;
while (!eof)
{
char ch = current;
if (ch == '[')
{
depth++;
}
else if (ch == ']')
{
depth--;
if (depth == 0)
{
break;
}
}
this.SkipEscapableChar(ExtraMode);
}
// Quit if end
if (eof)
{
return(null);
}
// Get the link text and unescape it
string link_text = Utils.UnescapeString(Extract(), ExtraMode);
// The closing ']'
SkipForward(1);
// Save position in case we need to rewind
savepos = position;
// Inline links must follow immediately
if (SkipChar('('))
{
// Extract the url and title
var link_def = LinkDefinition.ParseLinkTarget(this, null, m_Markdown.ExtraMode);
if (link_def == null)
{
return(null);
}
// Closing ')'
SkipWhitespace();
if (!SkipChar(')'))
{
return(null);
}
// Create the token
return(CreateToken(token_type, new LinkInfo(link_def, link_text)));
}
// Optional space or tab
if (!SkipChar(' '))
{
SkipChar('\t');
}
// If there's line end, we're allow it and as must line space as we want
// before the link id.
if (eol)
{
SkipEol();
SkipLinespace();
}
// Reference link?
string link_id = null;
if (current == '[')
{
// Skip the opening '['
SkipForward(1);
// Find the start/end of the id
Mark();
if (!Find(']'))
{
return(null);
}
// Extract the id
link_id = Extract();
// Skip closing ']'
SkipForward(1);
}
else
{
// Rewind to just after the closing ']'
position = savepos;
}
// Link id not specified?
if (string.IsNullOrEmpty(link_id))
{
// Use the link text (implicit reference link)
link_id = Utils.NormalizeLineEnds(link_text);
// If the link text has carriage returns, normalize
// to spaces
if (!object.ReferenceEquals(link_id, link_text))
{
while (link_id.Contains(" \n"))
{
link_id = link_id.Replace(" \n", "\n");
}
link_id = link_id.Replace("\n", " ");
}
}
// Find the link definition abort if not defined
var def = m_Markdown.GetLinkDefinition(link_id);
if (def == null)
{
return(null);
}
// Create a token
return(CreateToken(token_type, new LinkInfo(def, link_text)));
}
// Add a link definition
internal void AddLinkDefinition(LinkDefinition link)
{
// Store it
m_LinkDefinitions[link.id]=link;
}
// Add a link definition
public void AddLinkDefinition(LinkDefinition link)
{
// Store it
m_LinkDefinitions[link.id]=link;
}
public LinkInfo(LinkDefinition def, string link_text)
{
this.def = def;
this.link_text = link_text;
}
// Add a link definition
internal void AddLinkDefinition(LinkDefinition link)
{
// Store it
m_LinkDefinitions[link.id] = link;
m_FoundLinks.Add(new LinkInfo(link, null));
}
// Add a link definition
internal void AddLinkDefinition(LinkDefinition link)
{
// Store it
_mLinkDefinitions[link.ID] = link;
}
public LinkInfo(LinkDefinition def, string link_text)
{
this.def = def;
this.link_text = link_text;
}
public void Setup()
{
r=null;
}
// Add a link definition
internal void AddLinkDefinition(LinkDefinition link)
{
// Store it
m_LinkDefinitions[link.id] = link;
}
// Add a link definition
public void AddLinkDefinition(LinkDefinition link)
{
// Store it
m_LinkDefinitions[link.id] = link;
}
internal void RenderLink(Markdown m, StringBuilder b, string link_text, List <string> specialAttributes)
{
if (this.Url.StartsWith("mailto:"))
{
b.Append("<a href=\"");
Utils.HtmlRandomize(b, this.Url);
b.Append('\"');
if (!String.IsNullOrEmpty(this.Title))
{
b.Append(" title=\"");
Utils.SmartHtmlEncodeAmpsAndAngles(b, this.Title);
b.Append('\"');
}
b.Append('>');
Utils.HtmlRandomize(b, link_text);
b.Append("</a>");
}
else
{
HtmlTag tag = new HtmlTag("a");
var url = this.Url;
if (m.DocNetMode && m.ConvertLocalLinks)
{
// A few requirements before we can convert local links:
// 1. Link contains .md
// 2. Link is relative
// 3. Link is included in the index
var index = url.LastIndexOf(".md", StringComparison.OrdinalIgnoreCase);
if (index >= 0)
{
var linkProcessor = m.LocalLinkProcessor;
if (linkProcessor != null)
{
url = linkProcessor(url);
}
else
{
Uri uri;
if (Uri.TryCreate(url, UriKind.Relative, out uri))
{
url = String.Concat(url.Substring(0, index), ".htm", url.Substring(index + ".md".Length));
}
}
}
}
// encode url
StringBuilder sb = m.GetStringBuilder();
Utils.SmartHtmlEncodeAmpsAndAngles(sb, url);
tag.attributes["href"] = sb.ToString();
// encode title
if (!String.IsNullOrEmpty(this.Title))
{
sb.Length = 0;
Utils.SmartHtmlEncodeAmpsAndAngles(sb, this.Title);
tag.attributes["title"] = sb.ToString();
}
if (specialAttributes.Any())
{
LinkDefinition.HandleSpecialAttributes(specialAttributes, sb, tag);
}
// Do user processing
m.OnPrepareLink(tag);
// Render the opening tag
tag.RenderOpening(b);
b.Append(link_text); // Link text already escaped by SpanFormatter
b.Append("</a>");
}
}
// Add a link definition
internal void AddLinkDefinition(LinkDefinition link)
{
// Store it
m_LinkDefinitions[link.id]=link;
m_FoundLinks.Add(new LinkInfo(link, null));
}
public void SingleQuoteTitle()
{
string str = "[id]: url.com \'my title\'";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.Id, "id");
Assert.AreEqual(r.Url, "url.com");
Assert.AreEqual(r.Title, "my title");
}
// Parse just the link target
// For reference link definition, this is the bit after "[id]: thisbit"
// For inline link, this is the bit in the parens: [link text](thisbit)
internal static LinkDefinition ParseLinkTarget(StringScanner p, string id, bool ExtraMode)
{
// Skip whitespace
p.SkipWhitespace();
// End of string?
if (p.eol)
return null;
// Create the link definition
var r = new LinkDefinition(id);
// Is the url enclosed in angle brackets
if (p.SkipChar('<'))
{
// Extract the url
p.Mark();
// Find end of the url
while (p.current != '>')
{
if (p.eof)
return null;
p.SkipEscapableChar(ExtraMode);
}
string url = p.Extract();
if (!p.SkipChar('>'))
return null;
// Unescape it
r.url = Utils.UnescapeString(url.Trim(), ExtraMode);
// Skip whitespace
p.SkipWhitespace();
}
else
{
// Find end of the url
p.Mark();
int paren_depth = 1;
while (!p.eol)
{
char ch=p.current;
if (char.IsWhiteSpace(ch))
break;
if (id == null)
{
if (ch == '(')
paren_depth++;
else if (ch == ')')
{
paren_depth--;
if (paren_depth==0)
break;
}
}
p.SkipEscapableChar(ExtraMode);
}
r.url = Utils.UnescapeString(p.Extract().Trim(), ExtraMode);
}
p.SkipLinespace();
// End of inline target
if (p.DoesMatch(')'))
return r;
bool bOnNewLine = p.eol;
int posLineEnd = p.position;
if (p.eol)
{
p.SkipEol();
p.SkipLinespace();
}
// Work out what the title is delimited with
char delim;
switch (p.current)
{
case '\'':
case '\"':
delim = p.current;
break;
case '(':
delim = ')';
break;
default:
if (bOnNewLine)
{
p.position = posLineEnd;
return r;
}
else
return null;
}
// Skip the opening title delimiter
p.SkipForward(1);
// Find the end of the title
p.Mark();
while (true)
{
if (p.eol)
return null;
if (p.current == delim)
{
if (delim != ')')
{
int savepos = p.position;
// Check for embedded quotes in title
// Skip the quote and any trailing whitespace
p.SkipForward(1);
p.SkipLinespace();
// Next we expect either the end of the line for a link definition
// or the close bracket for an inline link
if ((id == null && p.current != ')') ||
(id != null && !p.eol))
{
continue;
}
p.position = savepos;
}
// End of title
break;
}
p.SkipEscapableChar(ExtraMode);
}
// Store the title
r.title = Utils.UnescapeString(p.Extract(), ExtraMode);
// Skip closing quote
p.SkipForward(1);
// Done!
return r;
}
public void ParenthesizedTitle()
{
string str = "[id]: url.com (my title)";
r = LinkDefinition.ParseLinkDefinition(str, false);
Assert.IsNotNull(r);
Assert.AreEqual(r.id, "id");
Assert.AreEqual(r.url, "url.com");
Assert.AreEqual(r.title, "my title");
}