105 lines
4.6 KiB
C#
105 lines
4.6 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 abstract class PhraseBlockModifier : BlockModifier
|
|
{
|
|
protected PhraseBlockModifier()
|
|
{
|
|
}
|
|
|
|
protected string PhraseModifierFormat(string input, string modifier, string tag)
|
|
{
|
|
// All phrase modifiers are one character, or a double character. Sometimes,
|
|
// there's an additional escape character for the regex ('\').
|
|
var compressedModifier = modifier;
|
|
if (modifier.Length == 4)
|
|
{
|
|
compressedModifier = modifier.Substring(0, 2);
|
|
}
|
|
else if (modifier.Length == 2)
|
|
{
|
|
if (modifier[0] != '\\')
|
|
compressedModifier = modifier[0].ToString();
|
|
//else: compressedModifier = modifier;
|
|
}
|
|
//else: compressedModifier = modifier;
|
|
|
|
// We try to remove the Textile tag used for the formatting from
|
|
// the punctuation pattern, so that we match the end of the formatted
|
|
// zone correctly.
|
|
var punctuationPattern = Globals.PunctuationPattern.Replace(compressedModifier, "");
|
|
|
|
// Now we can do the replacement.
|
|
var pmme = new PhraseModifierMatchEvaluator(tag);
|
|
var res = Regex.Replace(input,
|
|
@"(?<=\s|" + punctuationPattern + @"|[{\(\[]|^)" +
|
|
modifier +
|
|
Globals.BlockModifiersPattern +
|
|
@"(:(?<cite>(\S+)))?" +
|
|
@"(?<content>[^" + compressedModifier + "]*)" +
|
|
@"(?<end>" + punctuationPattern + @"*)" +
|
|
modifier +
|
|
@"(?=[\]\)}]|" + punctuationPattern + @"+|\s|$)",
|
|
new MatchEvaluator(pmme.MatchEvaluator)
|
|
);
|
|
return res;
|
|
}
|
|
|
|
private sealed class PhraseModifierMatchEvaluator
|
|
{
|
|
private readonly string _tag;
|
|
|
|
public PhraseModifierMatchEvaluator(string tag)
|
|
{
|
|
_tag = tag;
|
|
}
|
|
|
|
public string MatchEvaluator(Match m)
|
|
{
|
|
if (m.Groups["content"].Length == 0)
|
|
{
|
|
// It's possible that the "atts" match groups eats the contents
|
|
// when the user didn't want to give block attributes, but the content
|
|
// happens to match the syntax. For example: "*(blah)*".
|
|
if (m.Groups["atts"].Length == 0)
|
|
return m.ToString();
|
|
return "<" + _tag + ">" + m.Groups["atts"].Value + m.Groups["end"].Value + "</" + _tag + ">";
|
|
}
|
|
|
|
var atts = BlockAttributesParser.ParseBlockAttributes(m.Groups["atts"].Value, _tag);
|
|
if (m.Groups["cite"].Length > 0)
|
|
atts += " cite=\"" + m.Groups["cite"] + "\"";
|
|
|
|
var res = "<" + _tag + atts + ">" +
|
|
m.Groups["content"].Value + m.Groups["end"].Value +
|
|
"</" + _tag + ">";
|
|
return res;
|
|
}
|
|
}
|
|
}
|