SubtitleEdit/libse/Utilities.cs

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C#
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using Nikse.SubtitleEdit.Core.ContainerFormats;
using Nikse.SubtitleEdit.Core.ContainerFormats.Matroska;
using Nikse.SubtitleEdit.Core.ContainerFormats.Mp4;
using Nikse.SubtitleEdit.Core.SubtitleFormats;
using System;
using System.Collections.Generic;
using System.Drawing;
using System.Globalization;
using System.IO;
using System.Net;
using System.Reflection;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Xml;
namespace Nikse.SubtitleEdit.Core
{
public static class Utilities
{
public const string WinXP2KUnicodeFontName = "Times New Roman";
/// <summary>
/// Cached environment new line characters for faster lookup.
/// </summary>
public static readonly char[] NewLineChars = Environment.NewLine.ToCharArray();
public static VideoInfo TryReadVideoInfoViaMatroskaHeader(string fileName)
{
var info = new VideoInfo { Success = false };
MatroskaFile matroska = null;
try
{
matroska = new MatroskaFile(fileName);
if (matroska.IsValid)
{
double frameRate;
int width;
int height;
double milliseconds;
string videoCodec;
matroska.GetInfo(out frameRate, out width, out height, out milliseconds, out videoCodec);
info.Width = width;
info.Height = height;
info.FramesPerSecond = frameRate;
info.Success = true;
info.TotalMilliseconds = milliseconds;
info.TotalSeconds = milliseconds / TimeCode.BaseUnit;
info.TotalFrames = info.TotalSeconds * frameRate;
info.VideoCodec = videoCodec;
}
}
catch (Exception)
{
throw;
}
finally
{
if (matroska != null)
{
matroska.Dispose();
}
}
return info;
}
public static VideoInfo TryReadVideoInfoViaAviHeader(string fileName)
{
var info = new VideoInfo { Success = false };
try
{
using (var rp = new RiffParser())
{
if (rp.TryOpenFile(fileName) && rp.FileType == RiffParser.ckidAVI)
{
var dh = new RiffDecodeHeader(rp);
dh.ProcessMainAVI();
info.FileType = RiffParser.FromFourCC(rp.FileType);
info.Width = dh.Width;
info.Height = dh.Height;
info.FramesPerSecond = dh.FrameRate;
info.TotalFrames = dh.TotalFrames;
info.TotalMilliseconds = dh.TotalMilliseconds;
info.TotalSeconds = info.TotalMilliseconds / TimeCode.BaseUnit;
info.VideoCodec = dh.VideoHandler;
info.Success = true;
}
}
}
catch
{
}
return info;
}
public static VideoInfo TryReadVideoInfoViaMp4(string fileName)
{
var info = new VideoInfo { Success = false };
try
{
var mp4Parser = new MP4Parser(fileName);
if (mp4Parser.Moov != null && mp4Parser.VideoResolution.X > 0)
{
info.Width = mp4Parser.VideoResolution.X;
info.Height = mp4Parser.VideoResolution.Y;
info.TotalMilliseconds = mp4Parser.Duration.TotalSeconds;
info.VideoCodec = "MP4";
info.FramesPerSecond = mp4Parser.FrameRate;
info.Success = true;
}
}
catch
{
}
return info;
}
public static List<string> GetMovieFileExtensions()
{
return new List<string> { ".avi", ".mkv", ".wmv", ".mpg", ".mpeg", ".divx", ".mp4", ".asf", ".flv", ".mov", ".m4v", ".vob", ".ogv", ".webm", ".ts", ".m2ts", ".avs", ".mxf" };
}
public static string GetVideoFileFilter(bool includeAudioFiles)
{
var sb = new StringBuilder();
sb.Append(Configuration.Settings.Language.General.VideoFiles + "|");
int i = 0;
foreach (string extension in GetMovieFileExtensions())
{
if (i > 0)
sb.Append(';');
sb.Append('*');
sb.Append(extension);
i++;
}
if (includeAudioFiles)
{
sb.Append('|');
sb.Append(Configuration.Settings.Language.General.AudioFiles);
sb.Append("|*.mp3;*.wav;*.wma;*.ogg;*.mpa;*.m4a;*.ape;*.aiff;*.flac;*.aac;*.mka");
}
sb.Append('|');
sb.Append(Configuration.Settings.Language.General.AllFiles);
sb.Append("|*.*");
return sb.ToString();
}
public static bool IsInteger(string s)
{
int i;
return int.TryParse(s, out i);
}
public static SubtitleFormat GetSubtitleFormatByFriendlyName(string friendlyName)
{
foreach (SubtitleFormat format in SubtitleFormat.AllSubtitleFormats)
{
if (format.FriendlyName == friendlyName || format.Name == friendlyName)
return format;
}
return null;
}
public static string FormatBytesToDisplayFileSize(long fileSize)
{
if (fileSize <= 1024)
return string.Format("{0} bytes", fileSize);
if (fileSize <= 1024 * 1024)
return string.Format("{0} kb", fileSize / 1024);
if (fileSize <= 1024 * 1024 * 1024)
return string.Format("{0:0.0} mb", (float)fileSize / (1024 * 1024));
return string.Format("{0:0.0} gb", (float)fileSize / (1024 * 1024 * 1024));
}
/// <summary>
/// Downloads the requested resource as a <see cref="String"/> using the configured <see cref="WebProxy"/>.
/// </summary>
/// <param name="address">A <see cref="String"/> containing the URI to download.</param>
/// <param name="encoding">Encoding for source text</param>
/// <returns>A <see cref="String"/> containing the requested resource.</returns>
public static string DownloadString(string address, Encoding encoding = null)
{
using (var wc = new WebClient())
{
wc.Proxy = GetProxy();
if (encoding != null)
wc.Encoding = encoding;
return wc.DownloadString(address).Trim();
}
}
public static WebProxy GetProxy()
{
if (!string.IsNullOrEmpty(Configuration.Settings.Proxy.ProxyAddress))
{
var proxy = new WebProxy(Configuration.Settings.Proxy.ProxyAddress);
if (!string.IsNullOrEmpty(Configuration.Settings.Proxy.UserName))
{
if (string.IsNullOrEmpty(Configuration.Settings.Proxy.Domain))
proxy.Credentials = new NetworkCredential(Configuration.Settings.Proxy.UserName, Configuration.Settings.Proxy.DecodePassword());
else
proxy.Credentials = new NetworkCredential(Configuration.Settings.Proxy.UserName, Configuration.Settings.Proxy.DecodePassword(), Configuration.Settings.Proxy.Domain);
}
else
proxy.UseDefaultCredentials = true;
return proxy;
}
return null;
}
private static bool IsPartOfNumber(string s, int position)
{
if (string.IsNullOrWhiteSpace(s) || position + 1 >= s.Length)
return false;
if (position > 0 && @",.".Contains(s[position]))
{
return char.IsDigit(s[position - 1]) && char.IsDigit(s[position + 1]);
}
return false;
}
public static bool IsBetweenNumbers(string s, int position)
{
if (string.IsNullOrEmpty(s) || position < 1 || position + 2 > s.Length)
return false;
return char.IsDigit(s[position - 1]) && char.IsDigit(s[position + 1]);
}
public static string AutoBreakLine(string text, string language)
{
return AutoBreakLine(text, Configuration.Settings.General.SubtitleLineMaximumLength, Configuration.Settings.Tools.MergeLinesShorterThan, language);
}
public static string AutoBreakLine(string text)
{
return AutoBreakLine(text, string.Empty); // no language
}
private static bool CanBreak(string s, int index, string language)
{
char nextChar = ' ';
if (index >= 0 && index < s.Length)
nextChar = s[index];
else
return false;
if (!"\r\n\t ".Contains(nextChar))
return false;
// Some words we don't like breaking after
string s2 = s.Substring(0, index);
if (Configuration.Settings.Tools.UseNoLineBreakAfter)
{
foreach (NoBreakAfterItem ending in NoBreakAfterList(language))
{
if (ending.IsMatch(s2))
return false;
}
}
if (s2.EndsWith("? -", StringComparison.Ordinal) || s2.EndsWith("! -", StringComparison.Ordinal) || s2.EndsWith(". -", StringComparison.Ordinal))
return false;
return true;
}
private static string _lastNoBreakAfterListLanguage;
private static List<NoBreakAfterItem> _lastNoBreakAfterList = new List<NoBreakAfterItem>();
private static IEnumerable<NoBreakAfterItem> NoBreakAfterList(string languageName)
{
if (string.IsNullOrEmpty(languageName))
return new List<NoBreakAfterItem>();
if (languageName == _lastNoBreakAfterListLanguage)
return _lastNoBreakAfterList;
_lastNoBreakAfterList = new List<NoBreakAfterItem>();
//load words via xml
string noBreakAfterFileName = DictionaryFolder + languageName + "_NoBreakAfterList.xml";
var doc = new XmlDocument();
if (File.Exists(noBreakAfterFileName))
{
doc.Load(noBreakAfterFileName);
foreach (XmlNode node in doc.DocumentElement)
{
if (!string.IsNullOrEmpty(node.InnerText))
{
if (node.Attributes["RegEx"] != null && node.Attributes["RegEx"].InnerText.Equals("true", StringComparison.OrdinalIgnoreCase))
{
var r = new Regex(node.InnerText, RegexOptions.Compiled);
_lastNoBreakAfterList.Add(new NoBreakAfterItem(r, node.InnerText));
}
else
{
_lastNoBreakAfterList.Add(new NoBreakAfterItem(node.InnerText));
}
}
}
}
_lastNoBreakAfterListLanguage = languageName;
return _lastNoBreakAfterList;
}
public static string AutoBreakLineMoreThanTwoLines(string text, int maximumLineLength, string language)
{
if (text == null || text.Length < 3)
return text;
string s = AutoBreakLine(text, 0, 0, language);
var arr = s.SplitToLines();
if ((arr.Length < 2 && arr[0].Length <= maximumLineLength) || (arr[0].Length <= maximumLineLength && arr[1].Length <= maximumLineLength))
return s;
s = RemoveLineBreaks(s);
var htmlTags = new Dictionary<int, string>();
var sb = new StringBuilder(s.Length);
int six = 0;
while (six < s.Length)
{
var letter = s[six];
var tagFound = letter == '<' && (s.Substring(six).StartsWith("<font", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</font", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("<u", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</u", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("<b", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</b", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("<i", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</i", StringComparison.OrdinalIgnoreCase));
int endIndex = -1;
if (tagFound)
endIndex = s.IndexOf('>', six + 1);
if (tagFound && endIndex > 0)
{
string tag = s.Substring(six, endIndex - six + 1);
s = s.Remove(six, tag.Length);
if (htmlTags.ContainsKey(six))
htmlTags[six] = htmlTags[six] + tag;
else
htmlTags.Add(six, tag);
}
else
{
sb.Append(letter);
six++;
}
}
s = sb.ToString();
var words = s.Split(' ');
for (int numberOfLines = 3; numberOfLines < 9999; numberOfLines++)
{
int average = s.Length / numberOfLines + 1;
for (int len = average; len < maximumLineLength; len++)
{
List<int> list = SplitToX(words, numberOfLines, len);
bool allOk = true;
foreach (var lineLength in list)
{
if (lineLength > maximumLineLength)
allOk = false;
}
if (allOk)
{
int index = 0;
foreach (var item in list)
{
index += item;
htmlTags.Add(index, Environment.NewLine);
}
s = ReInsertHtmlTags(s, htmlTags);
s = s.Replace(" " + Environment.NewLine, Environment.NewLine);
s = s.Replace(Environment.NewLine + " ", Environment.NewLine);
s = s.Replace(Environment.NewLine + "</i>", "</i>" + Environment.NewLine);
s = s.Replace(Environment.NewLine + "</b>", "</b>" + Environment.NewLine);
s = s.Replace(Environment.NewLine + "</u>", "</u>" + Environment.NewLine);
s = s.Replace(Environment.NewLine + "</font>", "</font>" + Environment.NewLine);
return s.TrimEnd();
}
}
}
return text;
}
private static List<int> SplitToX(string[] words, int count, int average)
{
var list = new List<int>();
int currentIdx = 0;
int currentCount = 0;
foreach (string word in words)
{
if (currentCount + word.Length + 3 > average && currentIdx < count)
{
list.Add(currentCount);
currentIdx++;
currentCount = 0;
}
currentCount += word.Length + 1;
}
if (currentIdx < count)
list.Add(currentCount);
else
list[list.Count - 1] += currentCount;
return list;
}
public static string AutoBreakLine(string text, int maximumLength, int mergeLinesShorterThan, string language)
{
if (text == null || text.Length < 3)
return text;
// do not autobreak dialogs
if (text.Contains('-') && text.Contains(Environment.NewLine))
{
var noTagLines = HtmlUtil.RemoveHtmlTags(text, true).SplitToLines();
if (noTagLines.Length == 2)
{
var arr0 = noTagLines[0].Trim().TrimEnd('"', '\'').TrimEnd();
if (arr0.StartsWith('-') && noTagLines[1].TrimStart().StartsWith('-') && arr0.Length > 1 && ".?!)]".Contains(arr0[arr0.Length - 1]) || arr0.EndsWith("--", StringComparison.Ordinal) || arr0.EndsWith(''))
return text;
}
}
string s = RemoveLineBreaks(text);
string noTagText = HtmlUtil.RemoveHtmlTags(s, true);
if (noTagText.Length < mergeLinesShorterThan)
{
var noTagLines = noTagText.SplitToLines();
if (noTagLines.Length > 1)
{
bool isDialog = true;
foreach (string line in noTagLines)
{
var noTagLine = line.TrimStart();
isDialog = isDialog && (noTagLine.StartsWith('-') || noTagLine.StartsWith('—'));
}
if (isDialog)
{
return text;
}
}
return s;
}
var htmlTags = new Dictionary<int, string>();
var sb = new StringBuilder();
int six = 0;
while (six < s.Length)
{
var letter = s[six];
var tagFound = letter == '<' && (s.Substring(six).StartsWith("<font", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</font", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("<u", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</u", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("<b", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</b", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("<i", StringComparison.OrdinalIgnoreCase)
|| s.Substring(six).StartsWith("</i", StringComparison.OrdinalIgnoreCase));
int endIndex = -1;
if (tagFound)
endIndex = s.IndexOf('>', six + 1);
if (tagFound && endIndex > 0)
{
string tag = s.Substring(six, endIndex - six + 1);
s = s.Remove(six, tag.Length);
if (htmlTags.ContainsKey(six))
htmlTags[six] = htmlTags[six] + tag;
else
htmlTags.Add(six, tag);
}
else
{
sb.Append(letter);
six++;
}
}
s = sb.ToString();
int splitPos = -1;
int mid = s.Length / 2;
// try to find " - " with uppercase letter after (dialog)
if (s.Contains(" - "))
{
for (int j = 0; j <= (maximumLength / 2) + 5; j++)
{
if (mid + j + 4 < s.Length)
{
if (s[mid + j] == '-' && s[mid + j + 1] == ' ' && s[mid + j - 1] == ' ')
{
string rest = s.Substring(mid + j + 1).TrimStart();
if (rest.Length > 0 && char.IsUpper(rest[0]))
{
splitPos = mid + j;
break;
}
}
}
if (mid - (j + 1) > 4)
{
if (s[mid - j] == '-' && s[mid - j + 1] == ' ' && s[mid - j - 1] == ' ')
{
string rest = s.Substring(mid - j + 1).TrimStart();
if (rest.Length > 0 && char.IsUpper(rest[0]))
{
if (mid - j > 5 && s[mid - j - 1] == ' ' && @"!?.".Contains(s[mid - j - 2]))
{
splitPos = mid - j;
break;
}
}
}
}
}
}
if (splitPos == maximumLength + 1 && s[maximumLength] != ' ') // only allow space for last char (as it does not count)
splitPos = -1;
if (splitPos < 0)
{
const string expectedChars1 = ".!?0123456789";
const string expectedChars2 = ".!?";
for (int j = 0; j < 15; j++)
{
if (mid + j + 1 < s.Length && mid + j > 0)
{
if (expectedChars2.Contains(s[mid + j]) && !IsPartOfNumber(s, mid + j) && CanBreak(s, mid + j + 1, language))
{
splitPos = mid + j + 1;
if (expectedChars1.Contains(s[splitPos]))
{ // do not break double/tripple end lines like "!!!" or "..."
splitPos++;
if (expectedChars1.Contains(s[mid + j + 1]))
splitPos++;
}
break;
}
if (expectedChars2.Contains(s[mid - j]) && !IsPartOfNumber(s, mid - j) && CanBreak(s, mid - j, language))
{
splitPos = mid - j;
splitPos++;
break;
}
}
}
}
if (splitPos > maximumLength) // too long first line
{
if (splitPos != maximumLength + 1 || s[maximumLength] != ' ') // allow for maxlength+1 char to be space (does not count)
splitPos = -1;
}
else if (splitPos >= 0 && s.Length - splitPos > maximumLength) // too long second line
{
splitPos = -1;
}
if (splitPos < 0)
{
const string expectedChars1 = ".!?, ";
const string expectedChars2 = " .!?";
const string expectedChars3 = ".!?";
for (int j = 0; j < 25; j++)
{
if (mid + j + 1 < s.Length && mid + j > 0)
{
if (expectedChars1.Contains(s[mid + j]) && !IsPartOfNumber(s, mid + j) && s.Length > mid + j + 2 && CanBreak(s, mid + j, language))
{
splitPos = mid + j;
if (expectedChars2.Contains(s[mid + j + 1]))
{
splitPos++;
if (expectedChars2.Contains(s[mid + j + 2]))
splitPos++;
}
break;
}
if (expectedChars1.Contains(s[mid - j]) && !IsPartOfNumber(s, mid - j) && s.Length > mid + j + 2 && CanBreak(s, mid - j, language))
{
splitPos = mid - j;
if (expectedChars3.Contains(s[splitPos]))
splitPos--;
if (expectedChars3.Contains(s[splitPos]))
splitPos--;
if (expectedChars3.Contains(s[splitPos]))
splitPos--;
break;
}
}
}
}
if (splitPos < 0)
{
splitPos = mid;
s = s.Insert(mid - 1, Environment.NewLine);
s = ReInsertHtmlTags(s, htmlTags);
htmlTags = new Dictionary<int, string>();
s = s.Replace(Environment.NewLine, "-");
}
if (splitPos < s.Length - 2)
s = s.Substring(0, splitPos) + Environment.NewLine + s.Substring(splitPos);
s = ReInsertHtmlTags(s, htmlTags);
var idx = s.IndexOf(Environment.NewLine + "</");
if (idx > 2)
{
var endIdx = s.IndexOf('>', idx + 2);
if (endIdx > idx)
{
var tag = s.Substring(idx + Environment.NewLine.Length, endIdx - (idx + Environment.NewLine.Length) + 1);
s = s.Insert(idx, tag);
s = s.Remove(idx + tag.Length + Environment.NewLine.Length, tag.Length);
}
}
s = s.Replace(" " + Environment.NewLine, Environment.NewLine);
s = s.Replace(Environment.NewLine + " ", Environment.NewLine);
return s.TrimEnd();
}
public static string RemoveLineBreaks(string s)
{
s = HtmlUtil.FixUpperTags(s);
s = s.Replace(Environment.NewLine + "</i>", "</i>" + Environment.NewLine);
s = s.Replace(Environment.NewLine + "</b>", "</b>" + Environment.NewLine);
s = s.Replace(Environment.NewLine + "</u>", "</u>" + Environment.NewLine);
s = s.Replace(Environment.NewLine + "</font>", "</font>" + Environment.NewLine);
s = s.Replace("</i> " + Environment.NewLine + "<i>", " ");
s = s.Replace("</i>" + Environment.NewLine + " <i>", " ");
s = s.Replace("</i>" + Environment.NewLine + "<i>", " ");
s = s.Replace(Environment.NewLine, " ");
s = s.Replace(" </i>", "</i> ");
s = s.Replace(" </b>", "</b> ");
s = s.Replace(" </u>", "</u> ");
s = s.Replace(" </font>", "</font> ");
s = s.FixExtraSpaces();
return s.Trim();
}
private static string ReInsertHtmlTags(string s, Dictionary<int, string> htmlTags)
{
if (htmlTags.Count > 0)
{
var sb = new StringBuilder(s.Length);
int six = 0;
foreach (var letter in s)
{
if (Environment.NewLine.Contains(letter))
{
sb.Append(letter);
}
else
{
if (htmlTags.ContainsKey(six))
{
sb.Append(htmlTags[six]);
}
sb.Append(letter);
six++;
}
}
if (htmlTags.ContainsKey(six))
{
sb.Append(htmlTags[six]);
}
return sb.ToString();
}
return s;
}
public static string UnbreakLine(string text)
{
if (!text.Contains(Environment.NewLine))
return text;
var singleLine = text.Replace(Environment.NewLine, " ");
while (singleLine.Contains(" "))
singleLine = singleLine.Replace(" ", " ");
if (singleLine.Contains("</")) // Fix tag
{
singleLine = singleLine.Replace("</i> <i>", " ");
singleLine = singleLine.Replace("</i><i>", " ");
singleLine = singleLine.Replace("</b> <b>", " ");
singleLine = singleLine.Replace("</b><b>", " ");
singleLine = singleLine.Replace("</u> <u>", " ");
singleLine = singleLine.Replace("</u><u>", " ");
}
return singleLine;
}
public static string RemoveSsaTags(string s)
{
int k = s.IndexOf('{');
while (k >= 0)
{
int l = s.IndexOf('}', k);
if (l > k)
{
s = s.Remove(k, l - k + 1);
if (s.Length > 1 && s.Length > k)
k = s.IndexOf('{', k);
else
break;
}
else
{
break;
}
}
return s;
}
public static string DictionaryFolder
{
get
{
return Configuration.DictionariesFolder;
}
}
public static List<string> GetDictionaryLanguages()
{
var list = new List<string>();
if (Directory.Exists(DictionaryFolder))
{
foreach (string dic in Directory.GetFiles(DictionaryFolder, "*.dic"))
{
string name = Path.GetFileNameWithoutExtension(dic);
if (!name.StartsWith("hyph", StringComparison.Ordinal))
{
try
{
var ci = CultureInfo.GetCultureInfo(name.Replace('_', '-'));
name = ci.DisplayName + " [" + name + "]";
}
catch (Exception exception)
{
System.Diagnostics.Debug.WriteLine(exception.Message);
name = "[" + name + "]";
}
list.Add(name);
}
}
}
return list;
}
public static double GetOptimalDisplayMilliseconds(string text)
{
return GetOptimalDisplayMilliseconds(text, Configuration.Settings.General.SubtitleOptimalCharactersPerSeconds);
}
public static double GetOptimalDisplayMilliseconds(string text, double optimalCharactersPerSecond)
{
if (optimalCharactersPerSecond < 2 || optimalCharactersPerSecond > 100)
optimalCharactersPerSecond = 14.7;
double duration = (HtmlUtil.RemoveHtmlTags(text, true).Length / optimalCharactersPerSecond) * TimeCode.BaseUnit;
if (duration < Configuration.Settings.General.SubtitleMinimumDisplayMilliseconds)
duration = Configuration.Settings.General.SubtitleMinimumDisplayMilliseconds;
if (duration > Configuration.Settings.General.SubtitleMaximumDisplayMilliseconds)
duration = Configuration.Settings.General.SubtitleMaximumDisplayMilliseconds;
return duration;
}
public static string ColorToHex(Color c)
{
return string.Format("#{0:x2}{1:x2}{2:x2}", c.R, c.G, c.B);
}
public static int GetMaxLineLength(string text)
{
int maxLength = 0;
text = HtmlUtil.RemoveHtmlTags(text, true);
foreach (string line in text.SplitToLines())
{
if (line.Length > maxLength)
maxLength = line.Length;
}
return maxLength;
}
public static double GetCharactersPerSecond(Paragraph paragraph)
{
if (paragraph.Duration.TotalMilliseconds < 1)
return 999;
const string zeroWidthSpace = "\u200B";
const string zeroWidthNoBreakSpace = "\uFEFF";
string s = HtmlUtil.RemoveHtmlTags(paragraph.Text, true).Replace(Environment.NewLine, string.Empty).Replace(zeroWidthSpace, string.Empty).Replace(zeroWidthNoBreakSpace, string.Empty);
return s.Length / paragraph.Duration.TotalSeconds;
}
public static bool IsRunningOnMono()
{
return Type.GetType("Mono.Runtime") != null;
}
public static void ShowHelp(string parameter)
{
string helpFile = Configuration.Settings.Language.General.HelpFile;
if (string.IsNullOrEmpty(helpFile))
helpFile = "http://www.nikse.dk/SubtitleEdit/Help";
System.Diagnostics.Process.Start(helpFile + parameter);
}
public static string AssemblyVersion
{
get
{
return Assembly.GetEntryAssembly().GetName().Version.ToString();
}
}
public static string AssemblyDescription
{
get
{
var assembly = Assembly.GetEntryAssembly();
string assemblyName = assembly.GetName().Name;
if (Attribute.IsDefined(assembly, typeof(AssemblyDescriptionAttribute)))
{
Console.WriteLine(assemblyName);
var descriptionAttribute = (AssemblyDescriptionAttribute)Attribute.GetCustomAttribute(assembly, typeof(AssemblyDescriptionAttribute));
if (descriptionAttribute != null)
return descriptionAttribute.Description;
}
return null;
}
}
private static void AddExtension(StringBuilder sb, string extension)
{
if (!sb.ToString().Contains("*" + extension + ";", StringComparison.OrdinalIgnoreCase))
{
sb.Append('*');
sb.Append(extension.TrimStart('*'));
sb.Append(';');
}
}
public static string GetOpenDialogFilter()
{
var sb = new StringBuilder();
sb.Append(Configuration.Settings.Language.General.SubtitleFiles + "|");
foreach (SubtitleFormat s in SubtitleFormat.AllSubtitleFormats)
{
AddExtension(sb, s.Extension);
foreach (string ext in s.AlternateExtensions)
AddExtension(sb, ext);
}
AddExtension(sb, new Pac().Extension);
AddExtension(sb, new Cavena890().Extension);
AddExtension(sb, new Spt().Extension);
AddExtension(sb, new Wsb().Extension);
AddExtension(sb, new CheetahCaption().Extension);
AddExtension(sb, ".chk");
AddExtension(sb, new CaptionsInc().Extension);
AddExtension(sb, new Ultech130().Extension);
AddExtension(sb, new ELRStudioClosedCaption().Extension);
AddExtension(sb, ".uld"); // Ultech drop frame
AddExtension(sb, new SonicScenaristBitmaps().Extension);
AddExtension(sb, ".mks");
AddExtension(sb, ".mxf");
AddExtension(sb, ".sup");
AddExtension(sb, ".dost");
AddExtension(sb, new Ayato().Extension);
AddExtension(sb, new PacUnicode().Extension);
if (!string.IsNullOrEmpty(Configuration.Settings.General.OpenSubtitleExtraExtensions))
{
var extraExtensions = Configuration.Settings.General.OpenSubtitleExtraExtensions.Split(new[] { ';' }, StringSplitOptions.RemoveEmptyEntries);
foreach (string ext in extraExtensions)
{
if (ext.StartsWith("*.", StringComparison.Ordinal) && !sb.ToString().Contains(ext, StringComparison.OrdinalIgnoreCase))
AddExtension(sb, ext);
}
}
AddExtension(sb, ".son");
sb.Append('|');
sb.Append(Configuration.Settings.Language.General.AllFiles);
sb.Append("|*.*");
return sb.ToString();
}
public static bool IsValidRegex(string testPattern)
{
if (string.IsNullOrEmpty(testPattern))
{
return false;
}
try
{
Regex.Match(string.Empty, testPattern);
}
catch (ArgumentException)
{
// BAD PATTERN: Syntax error
return false;
}
return true;
}
public static Regex MakeWordSearchRegex(string word)
{
string s = word.Replace("\\", "\\\\");
s = s.Replace("*", "\\*");
s = s.Replace(".", "\\.");
s = s.Replace("?", "\\?");
return new Regex(@"\b" + s + @"\b", RegexOptions.Compiled);
}
public static Regex MakeWordSearchRegexWithNumbers(string word)
{
string s = word.Replace("\\", "\\\\");
s = s.Replace("*", "\\*");
s = s.Replace(".", "\\.");
s = s.Replace("?", "\\?");
return new Regex(@"[\b ,\.\?\!]" + s + @"[\b !\.,\r\n\?]", RegexOptions.Compiled);
}
public static void RemoveFromUserDictionary(string word, string languageName)
{
word = word.Trim();
if (word.Length > 0)
{
string userWordsXmlFileName = DictionaryFolder + languageName + "_user.xml";
var userWords = new XmlDocument();
if (File.Exists(userWordsXmlFileName))
userWords.Load(userWordsXmlFileName);
else
userWords.LoadXml("<words />");
var words = new List<string>();
foreach (XmlNode node in userWords.DocumentElement.SelectNodes("word"))
{
string w = node.InnerText.Trim();
if (w.Length > 0 && w != word)
words.Add(w);
}
words.Sort();
userWords.DocumentElement.RemoveAll();
foreach (string w in words)
{
XmlNode node = userWords.CreateElement("word");
node.InnerText = w;
userWords.DocumentElement.AppendChild(node);
}
userWords.Save(userWordsXmlFileName);
}
}
public static void AddToUserDictionary(string word, string languageName)
{
word = word.Trim();
if (word.Length > 0)
{
string userWordsXmlFileName = DictionaryFolder + languageName + "_user.xml";
var userWords = new XmlDocument();
if (File.Exists(userWordsXmlFileName))
userWords.Load(userWordsXmlFileName);
else
userWords.LoadXml("<words />");
var words = new List<string>();
foreach (XmlNode node in userWords.DocumentElement.SelectNodes("word"))
{
string w = node.InnerText.Trim();
if (w.Length > 0)
words.Add(w);
}
words.Add(word);
words.Sort();
userWords.DocumentElement.RemoveAll();
foreach (string w in words)
{
XmlNode node = userWords.CreateElement("word");
node.InnerText = w;
userWords.DocumentElement.AppendChild(node);
}
userWords.Save(userWordsXmlFileName);
}
}
public static string LoadUserWordList(List<string> userWordList, string languageName)
{
userWordList.Clear();
var userWordDictionary = new XmlDocument();
string userWordListXmlFileName = DictionaryFolder + languageName + "_user.xml";
if (File.Exists(userWordListXmlFileName))
{
userWordDictionary.Load(userWordListXmlFileName);
foreach (XmlNode node in userWordDictionary.DocumentElement.SelectNodes("word"))
{
string s = node.InnerText.ToLower();
if (!userWordList.Contains(s))
userWordList.Add(s);
}
}
return userWordListXmlFileName;
}
public static string LoadUserWordList(HashSet<string> userWordList, string languageName)
{
userWordList.Clear();
var userWordDictionary = new XmlDocument();
string userWordListXmlFileName = DictionaryFolder + languageName + "_user.xml";
if (File.Exists(userWordListXmlFileName))
{
userWordDictionary.Load(userWordListXmlFileName);
foreach (XmlNode node in userWordDictionary.DocumentElement.SelectNodes("word"))
{
string s = node.InnerText.ToLower();
if (!userWordList.Contains(s))
userWordList.Add(s);
}
}
return userWordListXmlFileName;
}
public static readonly string UppercaseLetters = GetLetters(true, false, false);
public static readonly string LowercaseLetters = GetLetters(false, true, false);
public static readonly string LowercaseLettersWithNumbers = GetLetters(false, true, true);
public static readonly string AllLetters = GetLetters(true, true, false);
public static readonly string AllLettersAndNumbers = GetLetters(true, true, true);
private static string GetLetters(bool uppercase, bool lowercase, bool numbers)
{
var sb = new StringBuilder();
if (uppercase)
sb.Append(Configuration.Settings.General.UppercaseLetters.ToUpper());
if (lowercase)
sb.Append(Configuration.Settings.General.UppercaseLetters.ToLower());
if (numbers)
sb.Append("0123456789");
return sb.ToString();
}
public static Color GetColorFromUserName(string userName)
{
if (string.IsNullOrEmpty(userName))
return Color.Pink;
byte[] buffer = Encoding.UTF8.GetBytes(userName);
long number = 0;
foreach (byte b in buffer)
number += b;
switch (number % 20)
{
case 0: return Color.Red;
case 1: return Color.Blue;
case 2: return Color.Green;
case 3: return Color.DarkCyan;
case 4: return Color.DarkGreen;
case 5: return Color.DarkBlue;
case 6: return Color.DarkTurquoise;
case 7: return Color.DarkViolet;
case 8: return Color.DeepPink;
case 9: return Color.DodgerBlue;
case 10: return Color.ForestGreen;
case 11: return Color.Fuchsia;
case 12: return Color.DarkOrange;
case 13: return Color.GreenYellow;
case 14: return Color.IndianRed;
case 15: return Color.Indigo;
case 16: return Color.LawnGreen;
case 17: return Color.LightBlue;
case 18: return Color.DarkGoldenrod;
case 19: return Color.Magenta;
default:
return Color.Black;
}
}
public static int GetNumber0To7FromUserName(string userName)
{
if (string.IsNullOrEmpty(userName))
return 0;
byte[] buffer = Encoding.UTF8.GetBytes(userName);
long number = 0;
foreach (byte b in buffer)
number += b;
return (int)(number % 8);
}
public static string GetRegExGroup(string regEx)
{
var start = regEx.IndexOf("(?<", StringComparison.Ordinal);
if (start < 0)
return null;
start += 3;
var end = regEx.IndexOf('>', start);
if (end <= start)
return null;
return regEx.Substring(start, end - start);
}
public static string LowercaseVowels
{
get
{
return "aeiouyæøåéóáôèòæøåäöïɤəɛʊʉɨ";
}
}
public static int CountTagInText(string text, string tag)
{
int count = 0;
int index = text.IndexOf(tag, StringComparison.Ordinal);
while (index >= 0)
{
count++;
index = index + tag.Length;
if (index >= text.Length)
return count;
index = text.IndexOf(tag, index, StringComparison.Ordinal);
}
return count;
}
public static int CountTagInText(string text, char tag)
{
int count = 0;
int index = text.IndexOf(tag);
while (index >= 0)
{
count++;
if ((index + 1) == text.Length)
return count;
index = text.IndexOf(tag, index + 1);
}
return count;
}
public static bool StartsAndEndsWithTag(string text, string startTag, string endTag)
{
if (string.IsNullOrWhiteSpace(text))
return false;
if (!text.Contains(startTag) || !text.Contains(endTag))
return false;
while (text.Contains(" "))
text = text.Replace(" ", " ");
var s1 = "- " + startTag;
var s2 = "-" + startTag;
var s3 = "- ..." + startTag;
var s4 = "- " + startTag + "..."; // - <i>...
var e1 = endTag + ".";
var e2 = endTag + "!";
var e3 = endTag + "?";
var e4 = endTag + "...";
var e5 = endTag + "-";
bool isStart = false;
bool isEnd = false;
if (text.StartsWith(startTag, StringComparison.Ordinal) || text.StartsWith(s1, StringComparison.Ordinal) || text.StartsWith(s2, StringComparison.Ordinal) || text.StartsWith(s3, StringComparison.Ordinal) || text.StartsWith(s4, StringComparison.Ordinal))
isStart = true;
if (text.EndsWith(endTag, StringComparison.Ordinal) || text.EndsWith(e1, StringComparison.Ordinal) || text.EndsWith(e2, StringComparison.Ordinal) || text.EndsWith(e3, StringComparison.Ordinal) || text.EndsWith(e4, StringComparison.Ordinal) || text.EndsWith(e5, StringComparison.Ordinal))
isEnd = true;
return isStart && isEnd;
}
public static Paragraph GetOriginalParagraph(int index, Paragraph paragraph, List<Paragraph> originalParagraphs)
{
if (index < 0)
return null;
if (index < originalParagraphs.Count && Math.Abs(originalParagraphs[index].StartTime.TotalMilliseconds - paragraph.StartTime.TotalMilliseconds) < 50)
return originalParagraphs[index];
foreach (Paragraph p in originalParagraphs)
{
if (p.StartTime.TotalMilliseconds == paragraph.StartTime.TotalMilliseconds)
return p;
}
foreach (Paragraph p in originalParagraphs)
{
if (p.StartTime.TotalMilliseconds > paragraph.StartTime.TotalMilliseconds - 200 &&
p.StartTime.TotalMilliseconds < paragraph.StartTime.TotalMilliseconds + TimeCode.BaseUnit)
return p;
}
return null;
}
/// <summary>
/// UrlEncodes a string without the requirement for System.Web
/// </summary>
public static string UrlEncode(string text)
{
return Uri.EscapeDataString(text);
}
/// <summary>
/// UrlDecodes a string without requiring System.Web
/// </summary>
public static string UrlDecode(string text)
{
// pre-process for + sign space formatting since System.Uri doesn't handle it
// plus literals are encoded as %2b normally so this should be safe
text = text.Replace('+', ' ');
return Uri.UnescapeDataString(text);
}
public static string FixEnglishTextInRightToLeftLanguage(string text, string reverseChars)
{
var sb = new StringBuilder();
var lines = text.SplitToLines();
foreach (string line in lines)
{
string s = line.Trim();
for (int i = 0; i < s.Length; i++)
{
if (s[i] == ')')
s = s.Remove(i, 1).Insert(i, "(");
else if (s[i] == '(')
s = s.Remove(i, 1).Insert(i, ")");
}
bool numbersOn = false;
string numbers = string.Empty;
for (int i = 0; i < s.Length; i++)
{
if (numbersOn && reverseChars.Contains(s[i]))
{
numbers = s[i] + numbers;
}
else if (numbersOn)
{
numbersOn = false;
s = s.Remove(i - numbers.Length, numbers.Length).Insert(i - numbers.Length, numbers);
numbers = string.Empty;
}
else if (reverseChars.Contains(s[i]))
{
numbers = s[i] + numbers;
numbersOn = true;
}
}
if (numbersOn)
{
int i = s.Length;
s = s.Remove(i - numbers.Length, numbers.Length).Insert(i - numbers.Length, numbers);
}
sb.AppendLine(s);
}
return sb.ToString().Trim();
}
public static string ToSuperscript(string text)
{
var sb = new StringBuilder();
var superscript = new List<char>{
'⁰',
'¹',
'²',
'³',
'⁴',
'⁵',
'⁶',
'⁷',
'⁸',
'⁹',
'⁺',
'⁻',
'⁼',
'⁽',
'⁾',
'ᵃ',
'ᵇ',
'ᶜ',
'ᵈ',
'ᵉ',
'ᶠ',
'ᵍ',
'ʰ',
'ⁱ',
'ʲ',
'ᵏ',
'ˡ',
'ᵐ',
'ⁿ',
'ᵒ',
'ᵖ',
'ʳ',
'ˢ',
'ᵗ',
'ᵘ',
'ᵛ',
'ʷ',
'ˣ',
'ʸ',
'ᶻ',
'ᴬ',
'ᴮ',
'ᴰ',
'ᴱ',
'ᴳ',
'ᴴ',
'ᴵ',
'ᴶ',
'ᴷ',
'ᴸ',
'ᴹ',
'ᴺ',
'ᴼ',
'ᴾ',
'ᴿ',
'ᵀ',
'ᵁ',
'ᵂ'
};
var normal = new List<char>{
'0', // "⁰"
'1', // "¹"
'2', // "²"
'3', // "³"
'4', // "⁴"
'5', // "⁵"
'6', // "⁶"
'7', // "⁷"
'8', // "⁸"
'9', // "⁹"
'+', // "⁺"
'-', // "⁻"
'=', // "⁼"
'(', // "⁽"
')', // "⁾"
'a', // "ᵃ"
'b', // "ᵇ"
'c', // "ᶜ"
'd', // "ᵈ"
'e', // "ᵉ"
'f', // "ᶠ"
'g', // "ᵍ"
'h', // "ʰ"
'i', // "ⁱ"
'j', // "ʲ"
'k', // "ᵏ"
'l', // "ˡ"
'm', // "ᵐ"
'n', // "ⁿ"
'o', // "ᵒ"
'p', // "ᵖ"
'r', // "ʳ"
's', // "ˢ"
't', // "ᵗ"
'u', // "ᵘ"
'v', // "ᵛ"
'w', // "ʷ"
'x', // "ˣ"
'y', // "ʸ"
'z', // "ᶻ"
'A', // "ᴬ"
'B', // "ᴮ"
'D', // "ᴰ"
'E', // "ᴱ"
'G', // "ᴳ"
'H', // "ᴴ"
'I', // "ᴵ"
'J', // "ᴶ"
'K', // "ᴷ"
'L', // "ᴸ"
'M', // "ᴹ"
'N', // "ᴺ"
'O', // "ᴼ"
'P', // "ᴾ"
'R', // "ᴿ"
'T', // "ᵀ"
'U', // "ᵁ"
'W', // "ᵂ"
};
for (int i = 0; i < text.Length; i++)
{
char s = text[i];
int index = normal.IndexOf(s);
if (index >= 0)
sb.Append(superscript[index]);
else
sb.Append(s);
}
return sb.ToString();
}
public static string ToSubscript(string text)
{
var sb = new StringBuilder();
var subcript = new List<char>{
'₀',
'₁',
'₂',
'₃',
'₄',
'₅',
'₆',
'₇',
'₈',
'₉',
'₊',
'₋',
'₌',
'₍',
'₎',
'ₐ',
'ₑ',
'ᵢ',
'ₒ',
'ᵣ',
'ᵤ',
'ᵥ',
'ₓ',
};
var normal = new List<char>
{
'0', // "₀"
'1', // "₁"
'2', // "₂"
'3', // "₃"
'4', // "₄"
'5', // "₅"
'6', // "₆"
'7', // "₇"
'8', // "₈"
'9', // "₉"
'+', // "₊"
'-', // "₋"
'=', // "₌"
'(', // "₍"
')', // "₎"
'a', // "ₐ"
'e', // "ₑ"
'i', // "ᵢ"
'o', // "ₒ"
'r', // "ᵣ"
'u', // "ᵤ"
'v', // "ᵥ"
'x', // "ₓ"
};
for (int i = 0; i < text.Length; i++)
{
char s = text[i];
int index = normal.IndexOf(s);
if (index >= 0)
sb.Append(subcript[index]);
else
sb.Append(s);
}
return sb.ToString();
}
public static string FixQuotes(string text)
{
if (string.IsNullOrEmpty(text))
return text;
if (text.StartsWith('"') && text.Length > 1)
text = text.Substring(1);
if (text.EndsWith('"') && text.Length >= 1)
text = text.Substring(0, text.Length - 1);
return text.Replace("\"\"", "\"");
}
public static Color GetColorFromFontString(string text, Color defaultColor)
{
string s = text.TrimEnd();
int start = s.IndexOf("<font ", StringComparison.OrdinalIgnoreCase);
if (start >= 0 && s.EndsWith("</font>", StringComparison.OrdinalIgnoreCase))
{
int end = s.IndexOf('>', start);
if (end > 0)
{
string f = s.Substring(start, end - start);
if (f.Contains(" color="))
{
int colorStart = f.IndexOf(" color=", StringComparison.OrdinalIgnoreCase);
if (s.IndexOf('"', colorStart + " color=".Length + 1) > 0)
end = s.IndexOf('"', colorStart + " color=".Length + 1);
s = s.Substring(colorStart, end - colorStart);
s = s.Replace(" color=", string.Empty);
s = s.Trim('\'').Trim('"').Trim('\'');
try
{
if (s.StartsWith("rgb(", StringComparison.Ordinal))
{
var arr = s.Remove(0, 4).TrimEnd(')').Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
return Color.FromArgb(int.Parse(arr[0]), int.Parse(arr[1]), int.Parse(arr[2]));
}
return ColorTranslator.FromHtml(s);
}
catch
{
return defaultColor;
}
}
}
}
return defaultColor;
}
public static string[] SplitForChangedCalc(string s, bool ignoreLineBreaks, bool breakToLetters)
{
const string endChars = "!?.:;,#%$£";
var list = new List<string>();
if (breakToLetters)
{
foreach (char ch in s)
list.Add(ch.ToString());
}
else
{
var word = new StringBuilder();
int i = 0;
while (i < s.Length)
{
if (ignoreLineBreaks && s.Substring(i).StartsWith(Environment.NewLine, StringComparison.Ordinal))
{
if (word.Length > 0)
list.Add(word.ToString());
word.Clear();
i += Environment.NewLine.Length;
}
else if (s.Substring(i).StartsWith(Environment.NewLine, StringComparison.Ordinal))
{
if (word.Length > 0)
list.Add(word.ToString());
word.Clear();
list.Add(Environment.NewLine);
i += Environment.NewLine.Length;
}
else if (s[i] == ' ')
{
if (word.Length > 0)
list.Add(word.ToString());
word.Clear();
i++;
}
else if (endChars.Contains(s[i]) && (word.Length == 0 || endChars.Contains(word[0])))
{
word.Append(s[i]);
i++;
}
else if (endChars.Contains(s[i]))
{
if (word.Length > 0)
list.Add(word.ToString());
word.Clear();
word.Append(s[i]);
i++;
}
else
{
word.Append(s[i]);
i++;
}
}
if (word.Length > 0)
list.Add(word.ToString());
}
return list.ToArray();
}
public static void GetTotalAndChangedWords(string s1, string s2, ref int total, ref int change, bool ignoreLineBreaks, bool breakToLetters)
{
var parts1 = SplitForChangedCalc(s1, ignoreLineBreaks, breakToLetters);
var parts2 = SplitForChangedCalc(s2, ignoreLineBreaks, breakToLetters);
total += Math.Max(parts1.Length, parts2.Length);
change += GetChangesAdvanced(parts1, parts2);
}
private static int GetChangesAdvanced(string[] parts1, string[] parts2)
{
int i1 = 0;
int i2 = 0;
int i = 0;
int c = 0;
while (i < Math.Max(parts1.Length, parts2.Length) && i1 < parts1.Length && i2 < parts2.Length)
{
if (parts1[i1] == parts2[i2])
{
i1++;
i2++;
}
else
{
int i1Next = FindNext(parts2[i2], parts1, i1);
int i2Next = FindNext(parts1[i1], parts2, i2);
if (i1Next < i2Next)
{
c += i1Next - i1;
i1 = i1Next + 1;
i2++;
}
else if (i2Next < i1Next)
{
c += i2Next - i2;
i1++;
i2 = i2Next + 1;
}
else
{
i1++;
i2++;
c++;
}
}
i++;
}
if (i1 == parts1.Length && i2 == parts2.Length)
return c;
return c + Math.Abs(parts1.Length - parts2.Length);
}
private static int FindNext(string s, string[] parts, int startIndex)
{
for (; startIndex < parts.Length; startIndex++)
{
if (s == parts[startIndex])
return startIndex;
}
return int.MaxValue;
}
public static string RemoveNonNumbers(string p)
{
if (string.IsNullOrEmpty(p))
return p;
var sb = new StringBuilder();
foreach (var c in p)
{
if (char.IsDigit(c))
sb.Append(c);
}
return sb.ToString();
}
private static readonly Regex RemoveSpaceBetweenNumbersRegex = new Regex(@"(?<=\b\d+) \d(?!/\d)", RegexOptions.Compiled);
public static string RemoveSpaceBetweenNumbers(string text)
{
if (!string.IsNullOrEmpty(text))
{
var match = RemoveSpaceBetweenNumbersRegex.Match(text);
while (match.Success)
{
text = text.Remove(match.Index, 1);
match = RemoveSpaceBetweenNumbersRegex.Match(text, match.Index);
}
}
return text;
}
/// <summary>
/// Remove unneeded spaces
/// </summary>
/// <param name="text">text string to remove unneeded spaces from</param>
/// <param name="language">two letter language id string</param>
/// <returns>text with unneeded spaces removed</returns>
public static string RemoveUnneededSpaces(string text, string language)
{
const string zeroWidthSpace = "\u200B";
const string zeroWidthNoBreakSpace = "\uFEFF";
const string noBreakSpace = "\u00A0";
const string operatingSystemCommand = "\u009D";
text = text.Trim();
text = text.Replace(zeroWidthSpace, string.Empty);
text = text.Replace(zeroWidthNoBreakSpace, string.Empty);
text = text.Replace(noBreakSpace, " ");
text = text.Replace(operatingSystemCommand, string.Empty);
text = text.Replace('\t', ' ');
text = text.FixExtraSpaces();
if (text.EndsWith(' '))
text = text.Substring(0, text.Length - 1);
const string ellipses = "...";
text = text.Replace(". . ..", ellipses);
text = text.Replace(". ...", ellipses);
text = text.Replace(". .. .", ellipses);
text = text.Replace(". . .", ellipses);
text = text.Replace(". ..", ellipses);
text = text.Replace(".. .", ellipses);
// Fix recursive: ...
while (text.Contains("...."))
text = text.Replace("....", ellipses);
text = text.Replace(" ..." + Environment.NewLine, "..." + Environment.NewLine);
text = text.Replace(Environment.NewLine + "... ", Environment.NewLine + "...");
text = text.Replace(Environment.NewLine + "<i>... ", Environment.NewLine + "<i>...");
text = text.Replace(Environment.NewLine + "- ... ", Environment.NewLine + "- ...");
text = text.Replace(Environment.NewLine + "<i>- ... ", Environment.NewLine + "<i>- ...");
text = text.Replace(Environment.NewLine + "- ... ", Environment.NewLine + "- ...");
if (text.StartsWith("... ", StringComparison.Ordinal))
text = text.Remove(3, 1);
if (text.EndsWith(" ...", StringComparison.Ordinal))
text = text.Remove(text.Length - 4, 1);
if (text.EndsWith(" ...</i>", StringComparison.Ordinal))
text = text.Remove(text.Length - 8, 1);
if (text.StartsWith("- ... ", StringComparison.Ordinal))
text = text.Remove(5, 1);
if (text.StartsWith("<i>... ", StringComparison.Ordinal))
text = text.Remove(6, 1);
if (language != "fr") // special rules for French
{
text = text.Replace("... ?", "...?");
text = text.Replace("... !", "...!");
text = text.Replace(" :", ":");
text = text.Replace(" :", ":");
}
if (!text.Contains("- ..."))
text = text.Replace(" ... ", "... ");
while (text.Contains(" ,"))
text = text.Replace(" ,", ",");
if (text.EndsWith(" .", StringComparison.Ordinal))
text = text.Remove(text.Length - 2, 1);
if (text.EndsWith(" \"", StringComparison.Ordinal))
text = text.Remove(text.Length - 2, 1);
if (text.Contains(" \"" + Environment.NewLine))
text = text.Replace(" \"" + Environment.NewLine, "\"" + Environment.NewLine);
if (text.Contains(" ." + Environment.NewLine))
text = text.Replace(" ." + Environment.NewLine, "." + Environment.NewLine);
if (language != "fr") // special rules for French
{
if (text.Contains(" !"))
text = text.Replace(" !", "!");
if (text.Contains(" ?"))
text = text.Replace(" ?", "?");
}
if (text.Contains(" . "))
{
var regex = new Regex(@"[a-z] \. [A-Z]");
var match = regex.Match(text);
while (match.Success)
{
text = text.Remove(match.Index + 1, 1);
match = regex.Match(text);
}
}
while (text.Contains("¿ "))
text = text.Replace("¿ ", "¿");
while (text.Contains("¡ "))
text = text.Replace("¡ ", "¡");
// Italic
if (text.Contains("<i>", StringComparison.OrdinalIgnoreCase) && text.Contains("</i>", StringComparison.OrdinalIgnoreCase))
text = RemoveSpaceBeforeAfterTag(text, "<i>");
// Bold
if (text.Contains("<b>", StringComparison.OrdinalIgnoreCase) && text.Contains("</b>", StringComparison.OrdinalIgnoreCase))
text = RemoveSpaceBeforeAfterTag(text, "<b>");
// Underline
if (text.Contains("<u>", StringComparison.OrdinalIgnoreCase) && text.Contains("</u>", StringComparison.OrdinalIgnoreCase))
text = RemoveSpaceBeforeAfterTag(text, "<u>");
// Font
if (text.Contains("<font ", StringComparison.OrdinalIgnoreCase))
{
var idx = text.IndexOf("<font ", StringComparison.OrdinalIgnoreCase);
var endIdx = text.IndexOf('>', idx + 6);
if (endIdx > idx && endIdx < text.Length - 8)
{
var color = text.Substring(idx, (endIdx - idx) + 1).ToLower();
text = RemoveSpaceBeforeAfterTag(text, color);
}
}
text = text.Trim();
text = text.Replace(Environment.NewLine + " ", Environment.NewLine);
if (text.Contains("- ") && text.Length > 5)
{
int idx = text.IndexOf("- ", 2, StringComparison.Ordinal);
if (text.StartsWith("<i>", StringComparison.OrdinalIgnoreCase))
idx = text.IndexOf("- ", 5, StringComparison.Ordinal);
while (idx > 0)
{
if (idx > 0 && idx < text.Length - 2)
{
string before = string.Empty;
int k = idx - 1;
while (k >= 0 && AllLettersAndNumbers.Contains(text[k]))
{
before = text[k] + before;
k--;
}
string after = string.Empty;
k = idx + 2;
while (k < text.Length && AllLetters.Contains(text[k]))
{
after = after + text[k];
k++;
}
if (after.Length > 0 && after.Equals(before, StringComparison.OrdinalIgnoreCase))
text = text.Remove(idx + 1, 1);
else if (before.Length > 0)
{
if ((language == "en" && (after.Equals("and", StringComparison.OrdinalIgnoreCase) || after.Equals("or", StringComparison.OrdinalIgnoreCase))) ||
(language == "es" && (after.Equals("y", StringComparison.OrdinalIgnoreCase) || after.Equals("o", StringComparison.OrdinalIgnoreCase))) ||
(language == "da" && (after.Equals("og", StringComparison.OrdinalIgnoreCase) || after.Equals("eller", StringComparison.OrdinalIgnoreCase))) ||
(language == "de" && (after.Equals("und", StringComparison.OrdinalIgnoreCase) || after.Equals("oder", StringComparison.OrdinalIgnoreCase))) ||
(language == "fi" && (after.Equals("ja", StringComparison.OrdinalIgnoreCase) || after.Equals("tai", StringComparison.OrdinalIgnoreCase))) ||
(language == "fr" && (after.Equals("et", StringComparison.OrdinalIgnoreCase) || after.Equals("ou", StringComparison.OrdinalIgnoreCase))) ||
(language == "it" && (after.Equals("e", StringComparison.OrdinalIgnoreCase) || after.Equals("o", StringComparison.OrdinalIgnoreCase))) ||
(language == "nl" && (after.Equals("en", StringComparison.OrdinalIgnoreCase) || after.Equals("of", StringComparison.OrdinalIgnoreCase))) ||
(language == "pl" && (after.Equals("i", StringComparison.OrdinalIgnoreCase) || after.Equals("czy", StringComparison.OrdinalIgnoreCase))) ||
(language == "pt" && (after.Equals("e", StringComparison.OrdinalIgnoreCase) || after.Equals("ou", StringComparison.OrdinalIgnoreCase))))
{
}
else
{
text = text.Remove(idx + 1, 1);
}
}
}
if (idx + 1 < text.Length && idx != -1)
idx = text.IndexOf("- ", idx + 1, StringComparison.Ordinal);
else
break;
}
}
if (CountTagInText(text, '"') == 2 && text.Contains(" \" "))
{
int idx = text.IndexOf(" \" ", StringComparison.Ordinal);
int idxp = text.IndexOf('"');
//"Foo " bar.
if ((idxp >= 0 && idxp < idx) && AllLettersAndNumbers.Contains(text[idx - 1]) && !" \r\n".Contains(text[idxp + 1]))
{
text = text.Remove(idx, 1);
}
//" Foo " bar.
idx = text.IndexOf(" \" ", StringComparison.Ordinal);
idxp = text.IndexOf('"');
if (idxp >= 0 && idx > idxp)
{
if (text[idxp + 1] == ' ' && AllLettersAndNumbers.Contains(text[idxp + 2]))
{
text = text.Remove(idxp + 1, 1);
idx--;
}
text = text.Remove(idx, 1);
}
}
return text;
}
public static string RemoveSpaceBeforeAfterTag(string text, string openTag)
{
text = HtmlUtil.FixUpperTags(text);
var closeTag = string.Empty;
switch (openTag)
{
case "<i>":
closeTag = "</i>";
break;
case "<b>":
closeTag = "</b>";
break;
case "<u>":
closeTag = "</u>";
break;
}
if (closeTag.Length == 0 && openTag.Contains("<font ", StringComparison.Ordinal))
closeTag = "</font>";
// Open tags
var open1 = openTag + " ";
var open2 = Environment.NewLine + openTag + " ";
var open3 = openTag + Environment.NewLine;
// Closing tags
var close1 = "! " + closeTag + Environment.NewLine;
var close2 = "? " + closeTag + Environment.NewLine;
var close3 = " " + closeTag;
var close4 = " " + closeTag + Environment.NewLine;
var close5 = Environment.NewLine + closeTag;
if (text.Contains(close1, StringComparison.Ordinal))
text = text.Replace(close1, "!" + closeTag + Environment.NewLine);
if (text.Contains(close2, StringComparison.Ordinal))
text = text.Replace(close2, "?" + closeTag + Environment.NewLine);
if (text.EndsWith(close3, StringComparison.Ordinal))
text = text.Substring(0, text.Length - close3.Length) + closeTag;
if (text.Contains(close4))
text = text.Replace(close4, closeTag + Environment.NewLine);
// e.g: ! </i><br>Foobar
if (text.StartsWith(open1, StringComparison.Ordinal))
text = openTag + text.Substring(open1.Length);
// e.g.: <i>\r\n
if (text.StartsWith(open3, StringComparison.Ordinal))
text = text.Remove(openTag.Length, Environment.NewLine.Length);
// e.g.: \r\n</i>
if (text.EndsWith(close5, StringComparison.Ordinal))
text = text.Remove(text.Length - openTag.Length - Environment.NewLine.Length - 1, Environment.NewLine.Length);
if (text.Contains(open2, StringComparison.Ordinal))
text = text.Replace(open2, Environment.NewLine + openTag);
// Hi <i> bad</i> man! -> Hi <i>bad</i> man!
text = text.Replace(" " + openTag + " ", " " + openTag);
text = text.Replace(Environment.NewLine + openTag + " ", Environment.NewLine + openTag);
// Hi <i>bad </i> man! -> Hi <i>bad</i> man!
text = text.Replace(" " + closeTag + " ", closeTag + " ");
text = text.Replace(" " + closeTag + Environment.NewLine, closeTag + Environment.NewLine);
text = text.Trim();
if (text.StartsWith(open1, StringComparison.Ordinal))
text = openTag + text.Substring(open1.Length);
return text;
}
/// <summary>
/// Creates a task that will complete after a time delay.
/// </summary>
/// <param name="millisecondsDelay">The number of milliseconds to wait before completing the returned task.</param>
/// <returns>A task that represents the time delay.</returns>
public static Task TaskDelay(int millisecondsDelay)
{
var tcs = new TaskCompletionSource<object>();
var t = new System.Threading.Timer(_ => tcs.SetResult(null));
t.Change(millisecondsDelay, -1);
return tcs.Task;
}
public static SubtitleFormat LoadMatroskaTextSubtitle(MatroskaTrackInfo matroskaSubtitleInfo, MatroskaFile matroska, List<MatroskaSubtitle> sub, Subtitle subtitle)
{
if (subtitle == null)
throw new ArgumentNullException("subtitle");
subtitle.Paragraphs.Clear();
var isSsa = false;
SubtitleFormat format = new SubRip();
if (matroskaSubtitleInfo.CodecPrivate.Contains("[script info]", StringComparison.OrdinalIgnoreCase))
{
if (matroskaSubtitleInfo.CodecPrivate.Contains("[V4 Styles]", StringComparison.OrdinalIgnoreCase))
format = new SubStationAlpha();
else
format = new AdvancedSubStationAlpha();
isSsa = true;
}
if (isSsa)
{
foreach (var p in LoadMatroskaSSA(matroskaSubtitleInfo, matroska.Path, format, sub).Paragraphs)
{
subtitle.Paragraphs.Add(p);
}
if (!string.IsNullOrEmpty(matroskaSubtitleInfo.CodecPrivate))
{
bool eventsStarted = false;
bool fontsStarted = false;
bool graphicsStarted = false;
var header = new StringBuilder();
foreach (string line in matroskaSubtitleInfo.CodecPrivate.Replace(Environment.NewLine, "\n").Split('\n'))
{
if (!eventsStarted && !fontsStarted && !graphicsStarted)
{
header.AppendLine(line);
}
if (line.TrimStart().StartsWith("dialog:", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = true;
fontsStarted = false;
graphicsStarted = false;
}
else if (line.Trim().Equals("[events]", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = true;
fontsStarted = false;
graphicsStarted = false;
}
else if (line.Trim().Equals("[fonts]", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = false;
fontsStarted = true;
graphicsStarted = false;
}
else if (line.Trim().Equals("[graphics]", StringComparison.OrdinalIgnoreCase))
{
eventsStarted = false;
fontsStarted = false;
graphicsStarted = true;
}
}
subtitle.Header = header.ToString().TrimEnd();
if (!subtitle.Header.Contains("[events]", StringComparison.OrdinalIgnoreCase))
{
subtitle.Header += Environment.NewLine + Environment.NewLine + "[Events]" + Environment.NewLine;
}
}
}
else
{
foreach (var p in sub)
{
subtitle.Paragraphs.Add(new Paragraph(p.Text, p.Start, p.End));
}
}
subtitle.Renumber();
return format;
}
public static Subtitle LoadMatroskaSSA(MatroskaTrackInfo matroskaSubtitleInfo, string fileName, SubtitleFormat format, List<MatroskaSubtitle> sub)
{
var subtitle = new Subtitle { Header = matroskaSubtitleInfo.CodecPrivate };
var lines = new List<string>();
foreach (string l in subtitle.Header.Trim().SplitToLines())
lines.Add(l);
var footer = new StringBuilder();
var comments = new Subtitle();
if (!string.IsNullOrEmpty(matroskaSubtitleInfo.CodecPrivate))
{
bool footerOn = false;
foreach (string line in lines)
{
if (footerOn)
{
footer.AppendLine(line);
}
else if (line.Trim() == "[Events]")
{
}
else if (line.Trim() == "[Fonts]" || line.Trim() == "[Graphics]")
{
footerOn = true;
footer.AppendLine();
footer.AppendLine();
footer.AppendLine(line);
}
else if (line.StartsWith("Comment:", StringComparison.Ordinal))
{
var arr = line.Split(',');
if (arr.Length > 3)
{
arr = arr[1].Split(new[] { ':', '.' });
if (arr.Length == 4)
{
int hour;
int min;
int sec;
int ms;
if (int.TryParse(arr[0], out hour) && int.TryParse(arr[1], out min) &&
int.TryParse(arr[2], out sec) && int.TryParse(arr[3], out ms))
{
comments.Paragraphs.Add(new Paragraph(new TimeCode(hour, min, sec, ms * 10), new TimeCode(0, 0, 0, 0), line));
}
}
}
}
}
}
const string headerFormat = "Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text";
if (!subtitle.Header.Contains("[Events]"))
{
subtitle.Header = subtitle.Header.Trim() + Environment.NewLine +
Environment.NewLine +
"[Events]" + Environment.NewLine +
headerFormat + Environment.NewLine;
}
else
{
subtitle.Header = subtitle.Header.Remove(subtitle.Header.IndexOf("[Events]", StringComparison.Ordinal));
subtitle.Header = subtitle.Header.Trim() + Environment.NewLine +
Environment.NewLine +
"[Events]" + Environment.NewLine +
headerFormat + Environment.NewLine;
}
lines = new List<string>();
foreach (string l in subtitle.Header.Trim().SplitToLines())
lines.Add(l);
const string timeCodeFormat = "{0}:{1:00}:{2:00}.{3:00}"; // h:mm:ss.cc
foreach (var mp in sub)
{
var p = new Paragraph(string.Empty, mp.Start, mp.End);
string start = string.Format(timeCodeFormat, p.StartTime.Hours, p.StartTime.Minutes, p.StartTime.Seconds, p.StartTime.Milliseconds / 10);
string end = string.Format(timeCodeFormat, p.EndTime.Hours, p.EndTime.Minutes, p.EndTime.Seconds, p.EndTime.Milliseconds / 10);
//MKS contains this: ReadOrder, Layer, Style, Name, MarginL, MarginR, MarginV, Effect, Text
for (int commentIndex = 0; commentIndex < comments.Paragraphs.Count; commentIndex++)
{
var cp = comments.Paragraphs[commentIndex];
if (cp.StartTime.TotalMilliseconds <= p.StartTime.TotalMilliseconds)
lines.Add(cp.Text);
}
for (int commentIndex = comments.Paragraphs.Count - 1; commentIndex >= 0; commentIndex--)
{
var cp = comments.Paragraphs[commentIndex];
if (cp.StartTime.TotalMilliseconds <= p.StartTime.TotalMilliseconds)
comments.Paragraphs.RemoveAt(commentIndex);
}
string text = mp.Text.Replace(Environment.NewLine, "\\N");
int idx = text.IndexOf(',') + 1;
if (idx > 0 && idx < text.Length)
{
text = text.Remove(0, idx); // remove ReadOrder
idx = text.IndexOf(',');
text = text.Insert(idx, "," + start + "," + end);
lines.Add("Dialogue: " + text);
}
}
for (int commentIndex = 0; commentIndex < comments.Paragraphs.Count; commentIndex++)
{
var cp = comments.Paragraphs[commentIndex];
lines.Add(cp.Text);
}
foreach (string l in footer.ToString().SplitToLines())
lines.Add(l);
format.LoadSubtitle(subtitle, lines, fileName);
return subtitle;
}
public static int GetNumberOfLines(string text)
{
if (string.IsNullOrEmpty(text))
return 0;
int lines = 1;
int idx = text.IndexOf('\n');
while (idx >= 0)
{
lines++;
idx = text.IndexOf('\n', idx + 1);
}
return lines;
}
public static string Sha256Hash(string value)
{
using (var hasher = new System.Security.Cryptography.SHA256Managed())
{
var bytes = Encoding.UTF8.GetBytes(value);
var hash = hasher.ComputeHash(bytes);
return Convert.ToBase64String(hash, 0, hash.Length);
}
}
}
}