SubtitleEdit/libse/SubtitleFormats/LambdaCap.cs
2019-08-16 22:55:32 +02:00

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