63 lines
2.5 KiB
C#
63 lines
2.5 KiB
C#
#region License Statement
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// Copyright (c) L.A.B.Soft. All rights reserved.
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//
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// The use and distribution terms for this software are covered by the
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// Common Public License 1.0 (http://opensource.org/licenses/cpl.php)
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// which can be found in the file CPL.TXT at the root of this distribution.
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// By using this software in any fashion, you are agreeing to be bound by
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// the terms of this license.
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//
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// You must not remove this notice, or any other, from this software.
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#endregion
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#region Using Statements
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using System.Text.RegularExpressions;
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#endregion
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namespace Textile.Blocks
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{
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public class HyperLinkBlockModifier : BlockModifier
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{
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private readonly string m_rel = string.Empty;
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public override string ModifyLine(string line)
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{
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line = Regex.Replace(line,
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@"(?<pre>[\s[{(]|" + Globals.PunctuationPattern + @")?" + // $pre
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"\"" + // start
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Globals.BlockModifiersPattern + // attributes
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"(?<text>[\\w\\W]+?)" + // text
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@"\s?" +
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@"(?:\((?<title>[^)]+)\)(?=""))?" + // title
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"\":" +
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@"""(?<url>\S+[^""]+)""" + // url
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@"(?<slash>\/)?" + // slash
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@"(?<post>[^\w\/;]*)" + // post
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@"(?=\s|$)",
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new MatchEvaluator(HyperLinksFormatMatchEvaluator));
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return line;
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}
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private string HyperLinksFormatMatchEvaluator(Match m)
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{
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//TODO: check the URL
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var atts = BlockAttributesParser.ParseBlockAttributes(m.Groups["atts"].Value, "a");
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if (m.Groups["title"].Length > 0)
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atts += " title=\"" + m.Groups["title"].Value + "\"";
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var linkText = m.Groups["text"].Value.Trim(' ');
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var str = m.Groups["pre"].Value + "<a ";
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if (!string.IsNullOrEmpty(m_rel))
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str += "ref=\"" + m_rel + "\" ";
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str += "href=\"" +
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m.Groups["url"].Value + m.Groups["slash"].Value + "\"" +
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atts +
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">" + linkText + "</a>" + m.Groups["post"].Value;
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return str;
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}
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}
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}
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