mirror of
https://github.com/SubtitleEdit/subtitleedit.git
synced 2024-10-28 06:52:35 +01:00
335 lines
17 KiB
C#
335 lines
17 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Xml;
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namespace Nikse.SubtitleEdit.Core.SubtitleFormats
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{
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/// <summary>
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/// Crappy format... should always be saved as UTF-8 without BOM (hacked Main.cs) and <br /> tags should be oldstyle <br/>
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/// </summary>
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public class ItunesTimedText : TimedText10
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{
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public override string Extension => ".itt";
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public new const string NameOfFormat = "iTunes Timed Text";
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public override string Name => NameOfFormat;
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public override bool IsMine(List<string> lines, string fileName)
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{
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if (fileName != null && !fileName.EndsWith(Extension, StringComparison.OrdinalIgnoreCase))
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return false;
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if (new NetflixTimedText().IsMine(lines, fileName))
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return false;
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return base.IsMine(lines, fileName);
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}
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public override string ToText(Subtitle subtitle, string title)
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{
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XmlNode styleHead = null;
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bool convertedFromSubStationAlpha = false;
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if (subtitle.Header != null)
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{
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try
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{
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var x = new XmlDocument();
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x.LoadXml(subtitle.Header);
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var xnsmgr = new XmlNamespaceManager(x.NameTable);
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xnsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
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styleHead = x.DocumentElement.SelectSingleNode("ttml:head", xnsmgr);
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}
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catch
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{
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styleHead = null;
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}
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if (styleHead == null && (subtitle.Header.Contains("[V4+ Styles]") || subtitle.Header.Contains("[V4 Styles]")))
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{
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var x = new XmlDocument();
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x.LoadXml(new ItunesTimedText().ToText(new Subtitle(), "tt")); // load default xml
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var xnsmgr = new XmlNamespaceManager(x.NameTable);
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xnsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
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styleHead = x.DocumentElement.SelectSingleNode("ttml:head", xnsmgr);
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styleHead.SelectSingleNode("ttml:styling", xnsmgr).RemoveAll();
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foreach (string styleName in AdvancedSubStationAlpha.GetStylesFromHeader(subtitle.Header))
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{
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try
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{
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var ssaStyle = AdvancedSubStationAlpha.GetSsaStyle(styleName, subtitle.Header);
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string fontStyle = "normal";
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if (ssaStyle.Italic)
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fontStyle = "italic";
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string fontWeight = "normal";
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if (ssaStyle.Bold)
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fontWeight = "bold";
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AddStyleToXml(x, styleHead, xnsmgr, ssaStyle.Name, ssaStyle.FontName, fontWeight, fontStyle, Utilities.ColorToHex(ssaStyle.Primary), ssaStyle.FontSize.ToString());
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convertedFromSubStationAlpha = true;
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}
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catch
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{
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// ignored
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}
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}
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subtitle.Header = x.OuterXml; // save new xml with styles in header
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}
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}
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var xml = new XmlDocument { XmlResolver = null };
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var nsmgr = new XmlNamespaceManager(xml.NameTable);
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nsmgr.AddNamespace("ttml", "http://www.w3.org/ns/ttml");
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nsmgr.AddNamespace("ttp", "http://www.w3.org/ns/10/ttml#parameter");
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nsmgr.AddNamespace("tts", "http://www.w3.org/ns/10/ttml#style");
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nsmgr.AddNamespace("ttm", "http://www.w3.org/ns/10/ttml#metadata");
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string frameRate = ((int)Math.Round(Configuration.Settings.General.CurrentFrameRate)).ToString();
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string frameRateMultiplier = "999 1000";
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if (Configuration.Settings.General.CurrentFrameRate % 1.0 < 0.01)
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{
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frameRateMultiplier = "1 1";
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}
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string dropMode = "nonDrop";
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if (Math.Abs(Configuration.Settings.General.CurrentFrameRate - 29.97) < 0.01)
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{
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dropMode = "dropNTSC";
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}
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const string language = "en-US";
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string xmlStructure = "<?xml version=\"1.0\" encoding=\"utf-8\" ?>" + Environment.NewLine +
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"<tt xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xmlns=\"http://www.w3.org/ns/ttml\" xmlns:tt=\"http://www.w3.org/ns/ttml\" xmlns:tts=\"http://www.w3.org/ns/ttml#styling\" xmlns:ttp=\"http://www.w3.org/ns/ttml#parameter\" xml:lang=\"" + language + "\" ttp:timeBase=\"smpte\" ttp:frameRate=\"" + frameRate + "\" ttp:frameRateMultiplier=\"" + frameRateMultiplier + "\" ttp:dropMode=\"" + dropMode + "\">" + Environment.NewLine +
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" <head>" + Environment.NewLine +
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" <styling>" + Environment.NewLine +
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" <style tts:fontSize=\"100%\" tts:color=\"white\" tts:fontStyle=\"normal\" tts:fontWeight=\"normal\" tts:fontFamily=\"sansSerif\" xml:id=\"normal\"/>" + Environment.NewLine +
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" <style tts:fontSize=\"100%\" tts:color=\"white\" tts:fontStyle=\"normal\" tts:fontWeight=\"bold\" tts:fontFamily=\"sansSerif\" xml:id=\"bold\"/>" + Environment.NewLine +
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" <style tts:fontSize=\"100%\" tts:color=\"white\" tts:fontStyle=\"italic\" tts:fontWeight=\"normal\" tts:fontFamily=\"sansSerif\" xml:id=\"italic\"/>" + Environment.NewLine +
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" </styling>" + Environment.NewLine +
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" <layout>" + Environment.NewLine +
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" <region xml:id=\"top\" tts:origin=\"0% 0%\" tts:extent=\"100% 15%\" tts:textAlign=\"center\" tts:displayAlign=\"before\"/>" + Environment.NewLine +
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" <region xml:id=\"bottom\" tts:origin=\"0% 85%\" tts:extent=\"100% 15%\" tts:textAlign=\"center\" tts:displayAlign=\"after\"/>" + Environment.NewLine +
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" </layout>" + Environment.NewLine +
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" </head>" + Environment.NewLine +
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" <body>" + Environment.NewLine +
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" <div />" + Environment.NewLine +
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" </body>" + Environment.NewLine +
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"</tt>";
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if (styleHead == null)
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{
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xml.LoadXml(xmlStructure);
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}
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else
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{
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try
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{
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xml.LoadXml(subtitle.Header);
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XmlNode divNode = xml.DocumentElement.SelectSingleNode("//ttml:body", nsmgr).SelectSingleNode("ttml:div", nsmgr);
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if (divNode == null)
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divNode = xml.DocumentElement.SelectSingleNode("//ttml:body", nsmgr).FirstChild;
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if (divNode != null)
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{
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var lst = new List<XmlNode>();
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foreach (XmlNode child in divNode.ChildNodes)
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lst.Add(child);
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foreach (XmlNode child in lst)
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divNode.RemoveChild(child);
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}
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else
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{
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xml.LoadXml(xmlStructure);
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}
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}
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catch
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{
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xml.LoadXml(xmlStructure);
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}
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}
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XmlNode body = xml.DocumentElement.SelectSingleNode("ttml:body", nsmgr);
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string defaultStyle = Guid.NewGuid().ToString();
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if (body.Attributes["style"] != null)
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defaultStyle = body.Attributes["style"].InnerText;
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XmlNode div = xml.DocumentElement.SelectSingleNode("//ttml:body", nsmgr).SelectSingleNode("ttml:div", nsmgr);
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if (div == null)
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div = xml.DocumentElement.SelectSingleNode("//ttml:body", nsmgr).FirstChild;
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bool hasBottomRegion = false;
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bool hasTopRegion = false;
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foreach (XmlNode node in xml.DocumentElement.SelectNodes("//ttml:head/ttml:layout/ttml:region", nsmgr))
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{
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string id = null;
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if (node.Attributes["xml:id"] != null)
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id = node.Attributes["xml:id"].Value;
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else if (node.Attributes["id"] != null)
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id = node.Attributes["id"].Value;
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if (id != null && id == "bottom")
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hasBottomRegion = true;
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if (id != null && id == "top")
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hasTopRegion = true;
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}
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var headerStyles = GetStylesFromHeader(subtitle.Header);
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foreach (Paragraph p in subtitle.Paragraphs)
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{
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XmlNode paragraph = xml.CreateElement("p", "http://www.w3.org/ns/ttml");
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string text = p.Text;
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XmlAttribute regionP = xml.CreateAttribute("region");
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if (text.StartsWith("{\\an7}", StringComparison.Ordinal) || text.StartsWith("{\\an8}", StringComparison.Ordinal) || text.StartsWith("{\\an9}", StringComparison.Ordinal))
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{
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if (hasTopRegion)
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{
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regionP.InnerText = "top";
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paragraph.Attributes.Append(regionP);
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}
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}
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else if (hasBottomRegion)
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{
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regionP.InnerText = "bottom";
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paragraph.Attributes.Append(regionP);
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}
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if (text.StartsWith("{\\an", StringComparison.Ordinal) && text.Length > 6 && text[5] == '}')
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text = text.Remove(0, 6);
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if (convertedFromSubStationAlpha)
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{
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if (string.IsNullOrEmpty(p.Style))
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{
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p.Style = p.Extra;
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}
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}
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if (subtitle.Header != null && p.Style != null && headerStyles.Contains(p.Style))
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{
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if (p.Style != defaultStyle)
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{
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XmlAttribute styleAttr = xml.CreateAttribute("style");
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styleAttr.InnerText = p.Style;
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paragraph.Attributes.Append(styleAttr);
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}
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}
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else if (!string.IsNullOrEmpty(p.Style))
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{
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XmlAttribute styleP = xml.CreateAttribute("style");
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styleP.InnerText = p.Style;
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paragraph.Attributes.Append(styleP);
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}
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bool first = true;
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bool italicOn = false;
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foreach (string line in text.SplitToLines())
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{
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if (!first)
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{
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XmlNode br = xml.CreateElement("br", "http://www.w3.org/ns/ttml");
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paragraph.AppendChild(br);
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}
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Stack<XmlNode> styles = new Stack<XmlNode>();
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XmlNode currentStyle = xml.CreateTextNode(string.Empty);
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paragraph.AppendChild(currentStyle);
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int skipCount = 0;
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for (int i = 0; i < line.Length; i++)
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{
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if (skipCount > 0)
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{
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skipCount--;
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}
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else if (line.Substring(i).StartsWith("<i>", StringComparison.Ordinal))
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{
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styles.Push(currentStyle);
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:fontStyle", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = "italic";
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currentStyle.Attributes.Append(attr);
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skipCount = 2;
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italicOn = true;
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}
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else if (line.Substring(i).StartsWith("<b>", StringComparison.Ordinal))
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{
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:fontWeight", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = "bold";
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currentStyle.Attributes.Append(attr);
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skipCount = 2;
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}
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else if (line.Substring(i).StartsWith("<font ", StringComparison.Ordinal))
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{
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int endIndex = line.Substring(i + 1).IndexOf('>');
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if (endIndex > 0)
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{
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skipCount = endIndex + 1;
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string fontContent = line.Substring(i, skipCount);
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if (fontContent.Contains(" color="))
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{
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var arr = fontContent.Substring(fontContent.IndexOf(" color=", StringComparison.Ordinal) + 7).Trim().Split(new[] { ' ' }, StringSplitOptions.RemoveEmptyEntries);
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if (arr.Length > 0)
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{
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string fontColor = arr[0].Trim('\'').Trim('"').Trim('\'');
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:color", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = fontColor;
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currentStyle.Attributes.Append(attr);
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}
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}
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}
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else
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{
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skipCount = line.Length;
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}
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}
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else if (line.Substring(i).StartsWith("</i>", StringComparison.Ordinal) || line.Substring(i).StartsWith("</b>", StringComparison.Ordinal) || line.Substring(i).StartsWith("</font>", StringComparison.Ordinal))
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{
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currentStyle = xml.CreateTextNode(string.Empty);
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if (styles.Count > 0)
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{
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currentStyle = styles.Pop().CloneNode(true);
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currentStyle.InnerText = string.Empty;
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}
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paragraph.AppendChild(currentStyle);
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if (line.Substring(i).StartsWith("</font>", StringComparison.Ordinal))
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skipCount = 6;
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else
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skipCount = 3;
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italicOn = false;
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}
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else
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{
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if (i == 0 && italicOn && !(line.Substring(i).StartsWith("<i>", StringComparison.Ordinal)))
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{
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styles.Push(currentStyle);
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currentStyle = xml.CreateNode(XmlNodeType.Element, "span", null);
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paragraph.AppendChild(currentStyle);
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XmlAttribute attr = xml.CreateAttribute("tts:fontStyle", "http://www.w3.org/ns/10/ttml#style");
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attr.InnerText = "italic";
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currentStyle.Attributes.Append(attr);
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}
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currentStyle.InnerText = currentStyle.InnerText + line[i];
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}
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}
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first = false;
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}
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XmlAttribute start = xml.CreateAttribute("begin");
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start.InnerText = ConvertToTimeString(p.StartTime);
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paragraph.Attributes.Append(start);
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XmlAttribute end = xml.CreateAttribute("end");
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end.InnerText = ConvertToTimeString(p.EndTime);
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paragraph.Attributes.Append(end);
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div.AppendChild(paragraph);
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}
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string xmlString = ToUtf8XmlString(xml).Replace(" xmlns=\"\"", string.Empty).Replace(" xmlns:tts=\"http://www.w3.org/ns/10/ttml#style\">", ">").Replace("<br />", "<br/>");
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if (subtitle.Header == null)
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subtitle.Header = xmlString;
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return xmlString;
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}
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}
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}
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