mirror of
https://github.com/SubtitleEdit/subtitleedit.git
synced 2024-11-26 05:02:36 +01:00
304 lines
12 KiB
C#
304 lines
12 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace Nikse.SubtitleEdit.Core.SubtitleFormats
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{
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/// <summary>
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/// https://backlothelp.netflix.com/hc/en-us/articles/214807928-Lambda-Cap-Creation-Guide-v1-1
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/// </summary>
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public class LambdaCap : SubtitleFormat
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{
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private static readonly Regex RegexTimeCodes = new Regex(@"^\d+[A-Z]*\s*\t\s*\d{8}/\d{8}\s*\t\s*", RegexOptions.Compiled);
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public override string Extension => ".cap";
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public override string Name => "Lambda Cap";
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public string Header
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{
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get
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{
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if (Configuration.Settings.General.CurrentFrameRate % 1.0 < 0.001)
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{
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return "Lambda字幕V4 DF0+1 SCENE\"和文標準\""; // non drop frame
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}
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return "Lambda字幕V4 DF1+1 SCENE\"和文標準\""; // drop frame
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}
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}
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public override bool IsMine(List<string> lines, string fileName)
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{
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var sb = new StringBuilder();
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foreach (string line in lines)
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{
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sb.AppendLine(line);
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}
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if (sb.ToString().StartsWith("{\\rtf1", StringComparison.Ordinal))
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{
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return false;
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}
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return base.IsMine(lines, fileName);
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}
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private const string AlignVerticalTop = "＠行頭";
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private const string AlignHorizontalLeft = "＠縦左";
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private const string AlignHorizontalRight = "＠縦右";
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private const string JustifiedCenter = "＠中央";
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private const string LongDash1 = "＠幅広［―］＠";
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private const string LongDash2 = "＠幅広［ー］＠";
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private const string AsynchronousContinuation = "＠継続";
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public override string ToText(Subtitle subtitle, string title)
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{
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var sb = new StringBuilder();
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sb.AppendLine(Header);
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sb.AppendLine();
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foreach (Paragraph p in subtitle.Paragraphs)
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{
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// 1<HT>00000000/11111111<HT>Line 1
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// <HT><HT><HT><HT>Line 2
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// 2<HT>11111111/22222222<HT>AAAA Line 1
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// <HT><HT><HT><HT>Line 2
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var text = EncodeStyle(p.Text);
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sb.AppendLine($"{p.Number}\t{EncodeTimeCode(p.StartTime)}/{EncodeTimeCode(p.EndTime)}\t{text}");
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}
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return sb.ToString();
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}
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private static string EncodeTimeCode(TimeCode time)
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{
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return time.ToHHMMSSFF().RemoveChar(':'); // HHMMSSFF without seperators, like 00031522
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}
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private static string EncodeStyle(string text)
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{
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text = text.Replace("―", LongDash1);
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text = text.Replace("ー", LongDash2);
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var verticalAlignTop = text.StartsWith("{\\an7}", StringComparison.Ordinal) || text.StartsWith("{\\an8}", StringComparison.Ordinal) || text.StartsWith("{\\an9}", StringComparison.Ordinal);
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// var verticalAlignCenter = text.StartsWith("{\\an4}", StringComparison.Ordinal) || text.StartsWith("{\\an5}", StringComparison.Ordinal) || text.StartsWith("{\\an6}", StringComparison.Ordinal);
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var horizontalAlignLeft = text.StartsWith("{\\an1}", StringComparison.Ordinal) || text.StartsWith("{\\an4}", StringComparison.Ordinal) || text.StartsWith("{\\an7}", StringComparison.Ordinal);
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var horizontalAlignRight = text.StartsWith("{\\an3}", StringComparison.Ordinal) || text.StartsWith("{\\an6}", StringComparison.Ordinal) || text.StartsWith("{\\an9}", StringComparison.Ordinal);
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var s = Utilities.RemoveSsaTags(text);
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bool isWholeLineItalic = s.StartsWith("<i>", StringComparison.Ordinal) && s.EndsWith("</i>", StringComparison.Ordinal) && Utilities.CountTagInText(s, "<i>") == 1;
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if (isWholeLineItalic)
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{
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text = text.Replace("<i>", string.Empty).Replace("</i>", string.Empty);
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}
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var lineBuilder = new StringBuilder();
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foreach (var line in text.SplitToLines())
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{
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var l = Utilities.RemoveSsaTags(line);
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bool isLineItalic = l.StartsWith("<i>", StringComparison.Ordinal) && l.EndsWith("</i>", StringComparison.Ordinal) && Utilities.CountTagInText(l, "<i>") == 1;
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if (lineBuilder.Length > 0)
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{
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lineBuilder.AppendLine();
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lineBuilder.Append("\t\t\t\t");
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}
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if (l.Contains("<i>") && !(isWholeLineItalic || isLineItalic))
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{
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l = l.Replace("<i>", "＠斜３［");
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l = l.Replace("</i>", "］＠");
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}
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l = HtmlUtil.RemoveHtmlTags(l, true);
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lineBuilder.Append(l);
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if (isWholeLineItalic || isLineItalic)
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{
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lineBuilder.Append(" ＠斜３");
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}
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if (horizontalAlignLeft)
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{
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lineBuilder.Append(" " + AlignHorizontalLeft);
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}
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else if (horizontalAlignRight)
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{
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lineBuilder.Append(" " + AlignHorizontalRight);
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}
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if (verticalAlignTop)
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{
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lineBuilder.Append(" " + AlignVerticalTop);
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}
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}
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return lineBuilder.ToString().TrimEnd();
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}
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private static string DecodeStyle(string line)
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{
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line = line.Trim();
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var max = line.Length;
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var sb = new StringBuilder(max);
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bool readUntilEndCode = false;
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bool italicOn = false;
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bool digitsOn = false;
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int i = 0;
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while (i < max)
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{
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var ch = line[i];
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if (readUntilEndCode)
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{
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if (ch == '］' && line.Substring(i).StartsWith("］＠", StringComparison.Ordinal))
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{
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readUntilEndCode = false;
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if (italicOn)
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{
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sb.Append("</i>");
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italicOn = false;
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}
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else if (digitsOn)
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{
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sb.Append("</i>");
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digitsOn = false;
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}
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i++;
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}
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else
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{
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sb.Append(ch);
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}
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}
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else if (ch == '＠')
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{
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var part = line.Substring(i);
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if (part.StartsWith("＠ルビ上［", StringComparison.Ordinal)) // Bouten on first line - horizontal positioning
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{
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readUntilEndCode = true;
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}
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else if (part.StartsWith("＠ルビ下［", StringComparison.Ordinal)) // Bouten on second line - horizontal positioning
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{
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readUntilEndCode = true;
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}
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else if (part.StartsWith("＠ルビ右［", StringComparison.Ordinal)) // Bouten on first line - vertical positioning
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{
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readUntilEndCode = true;
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}
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else if (part.StartsWith("＠ルビ左［", StringComparison.Ordinal)) // Bouten on second line - vertical positioning
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{
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readUntilEndCode = true;
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}
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else if (part.StartsWith("＠組［", StringComparison.Ordinal)) // Kumi-moji / Tatechuyoko (up to 3 half width digits including numerical punctuation)
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{
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readUntilEndCode = true;
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digitsOn = true;
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i += 2;
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}
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else if (part.StartsWith("＠斜３［", StringComparison.Ordinal)) // italic
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{
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readUntilEndCode = true;
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sb.Append("<i>");
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italicOn = true;
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i += 3;
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}
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else
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{
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sb.Append("＠");
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}
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}
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else
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{
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if (ch != '\t')
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{
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sb.Append(ch);
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}
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}
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i++;
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}
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var s = sb.ToString();
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if (s.Contains("＠斜３"))
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{
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s = "<i>" + s + "</i>";
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s = s.Replace("＠斜３", string.Empty);
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}
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s = s.Replace(LongDash1, "―");
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s = s.Replace(LongDash2, "ー");
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s = s.Replace(AsynchronousContinuation, string.Empty);
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if (s.Contains(AlignVerticalTop))
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{
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if (s.Contains(AlignHorizontalLeft))
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{
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s = "{\\an7}" + s;
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}
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else if (s.Contains(AlignHorizontalRight))
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{
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s = "{\\an9}" + s;
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}
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else
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{
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s = "{\\an8}" + s;
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}
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}
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else if (s.Contains(AlignHorizontalLeft))
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{
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s = "{\\an1}" + s;
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}
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else if (s.Contains(AlignHorizontalRight))
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{
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s = "{\\an3}" + s;
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}
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s = s.Replace(AlignVerticalTop, string.Empty);
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s = s.Replace(AlignHorizontalLeft, string.Empty);
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s = s.Replace(AlignHorizontalRight, string.Empty);
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s = s.Replace(JustifiedCenter, string.Empty).TrimEnd();
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if (s.EndsWith(" </i>", StringComparison.Ordinal))
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{
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s = s.Remove(s.Length - 5, 1);
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}
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return s;
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}
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public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
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{
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Paragraph p = null;
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subtitle.Paragraphs.Clear();
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_errorCount = 0;
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foreach (string line in lines)
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{
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if (RegexTimeCodes.IsMatch(line))
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{
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var temp = line.Trim().Split('\t');
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if (temp.Length > 1)
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{
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string[] startParts = { temp[1].Substring(0, 2), temp[1].Substring(2, 2), temp[1].Substring(4, 2), temp[1].Substring(6, 2), };
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string[] endParts = { temp[1].Substring(9, 2), temp[1].Substring(11, 2), temp[1].Substring(13, 2), temp[1].Substring(15, 2), };
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if (startParts.Length == 4 && endParts.Length == 4)
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{
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string text = line.Remove(0, RegexTimeCodes.Match(line).Length - 1).Trim();
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p = new Paragraph(DecodeTimeCodeFramesFourParts(startParts), DecodeTimeCodeFramesFourParts(endParts), DecodeStyle(text));
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subtitle.Paragraphs.Add(p);
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}
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}
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}
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else if (string.IsNullOrWhiteSpace(line))
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{
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// skip these lines
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}
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else if (p != null)
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{
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if (string.IsNullOrEmpty(p.Text))
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{
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p.Text = DecodeStyle(line);
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}
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else
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{
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p.Text = p.Text + Environment.NewLine + DecodeStyle(line);
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}
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}
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}
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subtitle.Renumber();
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}
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}
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}
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