Added Greek language file + subtitle format WebVTT

git-svn-id: https://subtitleedit.googlecode.com/svn/trunk@721 99eadd0c-20b8-1223-b5c4-2a2b2df33de2

src/Logic/SubtitleFormats/WebVTT.cs

@@ -0,0 +1,147 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Text.RegularExpressions;
+
+namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
+{
+    /// <summary>
+    /// http://www.whatwg.org/specs/web-apps/current-work/webvtt.html
+    /// </summary>
+    public class WebVTT : SubtitleFormat
+    {
+
+        readonly Regex _regexTimeCodes = new Regex(@"^-?\d+:-?\d+:-?\d+\.-?\d+\s*-->\s*-?\d+:-?\d+:-?\d+\.-?\d+", RegexOptions.Compiled);
+        readonly Regex _regexTimeCodesShort = new Regex(@"^-?\d+:-?\d+\.-?\d+\s*-->\s*-?\d+:-?\d+\.-?\d+", RegexOptions.Compiled);
+
+        public override string Extension
+        {
+            get { return ".vtt"; }
+        }
+
+        public override string Name
+        {
+            get { return "WebVTT"; }
+        }
+
+        public override bool HasLineNumber
+        {
+            get { return false; }
+        }
+
+        public override bool IsTimeBased
+        {
+            get { return true; }
+        }
+
+        public override bool IsMine(List<string> lines, string fileName)
+        {
+            var subtitle = new Subtitle();
+            LoadSubtitle(subtitle, lines, fileName);
+            return subtitle.Paragraphs.Count > _errorCount;
+        }
+
+        public override string ToText(Subtitle subtitle, string title)
+        {            
+            const string timeCodeFormat = "{0}:{1:00}:{2:00}.{3:000}"; // h:mm:ss.cc
+            const string paragraphWriteFormat = "{0} --> {1}{4}{2}{3}{4}";
+
+            var sb = new StringBuilder();
+            sb.AppendLine("WEBVTT");
+            sb.AppendLine();
+            foreach (Paragraph p in subtitle.Paragraphs)
+            {
+                string start = string.Format(timeCodeFormat, p.StartTime.Hours, p.StartTime.Minutes, p.StartTime.Seconds, p.StartTime.Milliseconds);
+                string end = string.Format(timeCodeFormat, p.EndTime.Hours, p.EndTime.Minutes, p.EndTime.Seconds, p.EndTime.Milliseconds);
+                string style = string.Empty;
+                if (!string.IsNullOrEmpty(p.Extra) && subtitle.Header == "WEBVTT")
+                    style = p.Extra;
+                sb.AppendLine(string.Format(paragraphWriteFormat, start, end, FormatText(p), style, Environment.NewLine));
+            }
+            return sb.ToString().Trim();
+        }
+
+        private static string FormatText(Paragraph p)
+        {
+            return p.Text;
+        }
+
+        public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
+        {
+            _errorCount = 0;
+            Paragraph p = null;
+            foreach (string line in lines)
+            {
+                string s = line;
+                if (_regexTimeCodesShort.IsMatch(s))
+                {
+                    s = "00:" + s.Replace("--> ", "--> 00:");
+                }
+
+                if (_regexTimeCodes.IsMatch(s))
+                {
+                    if (p != null)
+                    {
+                        subtitle.Paragraphs.Add(p);
+                        p = null;
+                    }
+                    try
+                    {
+                        string[] parts = s.Replace("-->","@").Split("@".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
+                        p = new Paragraph();
+                        p.StartTime = GetTimeCodeFromString(parts[0]);
+                        p.EndTime = GetTimeCodeFromString(parts[1]);
+                    }
+                    catch (Exception exception)
+                    {
+                        System.Diagnostics.Debug.WriteLine(exception.Message);
+                        _errorCount++;
+                        p = null;
+                    }
+                }
+                else if (subtitle.Paragraphs.Count == 0 && line.Trim() == "WEBVTT")
+                {
+                    subtitle.Header = "WEBVTT";
+                }
+                else if (p != null && line.Trim().Length > 0)
+                {
+                    string text = line.Trim();
+                    text = RemoveFormatting("v", text);
+                    text = RemoveFormatting("rt", text);
+                    text = RemoveFormatting("ruby", text);
+                    text = RemoveFormatting("c", text);
+                    text = RemoveFormatting("span", text);
+                    p.Text = (p.Text + Environment.NewLine + text).Trim();
+                }
+            }
+            if (p != null)
+                subtitle.Paragraphs.Add(p);
+            subtitle.Renumber(1);
+        }
+
+        private string RemoveFormatting(string tag, string text)
+        {
+            int indexOfTag = text.IndexOf("<" + tag + " ");
+            if (indexOfTag >= 0)
+            { 
+                int indexOfEnd = text.IndexOf(">", indexOfTag);
+                if (indexOfEnd > 0)
+                {
+                    text = text.Remove(indexOfTag, indexOfEnd - indexOfTag + 1);
+                }
+            }
+            return text;
+        }
+
+        private static TimeCode GetTimeCodeFromString(string time)
+        {
+            // hh:mm:ss.mmm
+            string[] timeCode = time.Split(':', '.');
+            return new TimeCode(int.Parse(timeCode[0]),
+                                int.Parse(timeCode[1]),
+                                int.Parse(timeCode[2]),
+                                int.Parse(timeCode[3]));
+        }
+
+    }
+}

src/SubtitleEdit.csproj

@@ -613,6 +613,7 @@
     <Compile Include="Logic\SubtitleFormats\UTSubtitleXml.cs" />
     <Compile Include="Logic\SubtitleFormats\Utx.cs" />
     <Compile Include="Logic\SubtitleFormats\UtxFrames.cs" />
+    <Compile Include="Logic\SubtitleFormats\WebVTT.cs" />
     <Compile Include="Logic\SubtitleFormats\Wsb.cs" />
     <Compile Include="Logic\SubtitleFormats\YouTubeAnnotations.cs" />
     <Compile Include="Logic\SubtitleFormats\YouTubeSbv.cs" />
@@ -971,6 +972,9 @@
     <Content Include="Languages\de-DE.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>
+    <Content Include="Languages\el-GR.xml">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </Content>
     <Content Include="Languages\es-ES.xml">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </Content>