2019-08-19 12:35:39 +00:00
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#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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2022-03-17 15:13:38 +00:00
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namespace Textile.States;
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/// <summary>
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/// Base formatting state for all lists.
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/// </summary>
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abstract public class ListFormatterState : FormatterState
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{
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2022-03-17 16:57:02 +00:00
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internal const string _patternBegin = @"^\s*(?<tag>";
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internal const string _patternEnd = @")" + Globals.BlockModifiersPattern + @"(?:\s+)? (?<content>.*)$";
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private bool _firstItem = true;
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private bool _firstItemLine = true;
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private string _tag;
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private string _attsInfo;
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private string _alignInfo;
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protected int NestingDepth
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{
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get { return _tag.Length; }
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}
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protected ListFormatterState(TextileFormatter formatter)
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: base(formatter)
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{
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}
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public override string Consume(string input, Match m)
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{
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_tag = m.Groups["tag"].Value;
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_alignInfo = m.Groups["align"].Value;
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_attsInfo = m.Groups["atts"].Value;
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input = m.Groups["content"].Value;
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this.Formatter.ChangeState(this);
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return input;
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}
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public sealed override void Enter()
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{
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_firstItem = true;
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_firstItemLine = true;
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WriteIndent();
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}
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public sealed override void Exit()
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{
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Formatter.Output.WriteLine("</li>");
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WriteOutdent();
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}
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public sealed override void FormatLine(string input)
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{
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if (_firstItemLine)
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{
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if (!_firstItem)
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{
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Formatter.Output.WriteLine("</li>");
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}
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Formatter.Output.Write("<li " + FormattedStylesAndAlignment("li") + ">");
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_firstItemLine = false;
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}
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else
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{
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Formatter.Output.WriteLine("<br />");
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}
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Formatter.Output.Write(input);
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_firstItem = false;
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}
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public sealed override bool ShouldNestState(FormatterState other)
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{
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var listState = (ListFormatterState)other;
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return listState.NestingDepth > NestingDepth;
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}
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public sealed override bool ShouldExit(string input)
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{
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// If we have an empty line, we can exit.
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if (string.IsNullOrEmpty(input))
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{
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return true;
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}
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// We exit this list if the next
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// list item is of the same type but less
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// deep as us, or of the other type of
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// list and as deep or less.
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if (NestingDepth > 1)
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{
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if (IsMatchForMe(input, 1, NestingDepth - 1))
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{
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return true;
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}
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}
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if (IsMatchForOthers(input, 1, NestingDepth))
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{
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return true;
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2019-08-19 12:35:39 +00:00
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}
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// As it seems we're going to continue taking
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// care of this line, we take the opportunity
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// to check whether it's the same list item as
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// previously (no "**" or "##" tags), or if it's
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// a new list item.
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if (IsMatchForMe(input, NestingDepth, NestingDepth))
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{
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_firstItemLine = true;
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}
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2022-03-17 15:01:39 +00:00
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2022-03-17 15:13:38 +00:00
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return false;
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}
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public sealed override bool ShouldParseForNewFormatterState(string input)
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{
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// We don't let anyone but ourselves mess with our stuff.
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if (IsMatchForMe(input, 1, 100))
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{
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return true;
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2019-08-19 12:35:39 +00:00
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}
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if (IsMatchForOthers(input, 1, 100))
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{
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return true;
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}
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return false;
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}
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protected abstract void WriteIndent();
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protected abstract void WriteOutdent();
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protected abstract bool IsMatchForMe(string input, int minNestingDepth, int maxNestingDepth);
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protected abstract bool IsMatchForOthers(string input, int minNestingDepth, int maxNestingDepth);
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protected string FormattedStylesAndAlignment(string element)
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{
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return Blocks.BlockAttributesParser.ParseBlockAttributes(_alignInfo + _attsInfo, element);
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2019-08-19 12:35:39 +00:00
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}
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}
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