86 lines
3.9 KiB
C#
86 lines
3.9 KiB
C#
// (c) Copyright Ascensio System SIA 2010-2022
|
|
//
|
|
// This program is a free software product.
|
|
// You can redistribute it and/or modify it under the terms
|
|
// of the GNU Affero General Public License (AGPL) version 3 as published by the Free Software
|
|
// Foundation. In accordance with Section 7(a) of the GNU AGPL its Section 15 shall be amended
|
|
// to the effect that Ascensio System SIA expressly excludes the warranty of non-infringement of
|
|
// any third-party rights.
|
|
//
|
|
// This program is distributed WITHOUT ANY WARRANTY, without even the implied warranty
|
|
// of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, see
|
|
// the GNU AGPL at: http://www.gnu.org/licenses/agpl-3.0.html
|
|
//
|
|
// You can contact Ascensio System SIA at Lubanas st. 125a-25, Riga, Latvia, EU, LV-1021.
|
|
//
|
|
// The interactive user interfaces in modified source and object code versions of the Program must
|
|
// display Appropriate Legal Notices, as required under Section 5 of the GNU AGPL version 3.
|
|
//
|
|
// Pursuant to Section 7(b) of the License you must retain the original Product logo when
|
|
// distributing the program. Pursuant to Section 7(e) we decline to grant you any rights under
|
|
// trademark law for use of our trademarks.
|
|
//
|
|
// All the Product's GUI elements, including illustrations and icon sets, as well as technical writing
|
|
// content are licensed under the terms of the Creative Commons Attribution-ShareAlike 4.0
|
|
// International. See the License terms at http://creativecommons.org/licenses/by-sa/4.0/legalcode
|
|
|
|
namespace Textile.Blocks;
|
|
|
|
public class ImageBlockModifier : BlockModifier
|
|
{
|
|
public override string ModifyLine(string line)
|
|
{
|
|
line = Regex.Replace(line,
|
|
@"\!" + // opening !
|
|
@"(?<algn>\<|\=|\>)?" + // optional alignment atts
|
|
Globals.BlockModifiersPattern + // optional style, public class atts
|
|
@"(?:\. )?" + // optional dot-space
|
|
@"(?<url>[^\s(!]+)" + // presume this is the src
|
|
@"\s?" + // optional space
|
|
@"(?:\((?<title>([^\)]+))\))?" +// optional title
|
|
@"\!" + // closing
|
|
@"(?::(?<href>(\S+)))?" + // optional href
|
|
@"(?=\s|\.|,|;|\)|\||$)", // lookahead: space or simple punctuation or end of string
|
|
new MatchEvaluator(ImageFormatMatchEvaluator)
|
|
);
|
|
return line;
|
|
}
|
|
|
|
string ImageFormatMatchEvaluator(Match m)
|
|
{
|
|
var atts = BlockAttributesParser.ParseBlockAttributes(m.Groups["atts"].Value, "img");
|
|
if (m.Groups["algn"].Length > 0)
|
|
{
|
|
atts += " align=\"" + Globals.ImageAlign[m.Groups["algn"].Value] + "\"";
|
|
}
|
|
|
|
if (m.Groups["title"].Length > 0)
|
|
{
|
|
atts += " title=\"" + m.Groups["title"].Value + "\"";
|
|
atts += " alt=\"" + m.Groups["title"].Value + "\"";
|
|
}
|
|
else
|
|
{
|
|
atts += " alt=\"\"";
|
|
}
|
|
// Get Image Size?
|
|
|
|
var res = "<img src=\"" + m.Groups["url"].Value + "\"" + atts + " />";
|
|
|
|
if (m.Groups["href"].Length > 0)
|
|
{
|
|
var href = m.Groups["href"].Value;
|
|
var end = string.Empty;
|
|
var endMatch = Regex.Match(href, @"(.*)(?<end>\.|,|;|\))$");
|
|
if (m.Success && !string.IsNullOrEmpty(endMatch.Groups["end"].Value))
|
|
{
|
|
href = href[0..^1];
|
|
end = endMatch.Groups["end"].Value;
|
|
}
|
|
res = "<a href=\"" + Globals.EncodeHTMLLink(href) + "\">" + res + "</a>" + end;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
}
|