private Dictionary <string, AssDocumentSection> ReadDocument(string filePath)
{
Dictionary <string, AssDocumentSection> sections = new Dictionary <string, AssDocumentSection>();
AssDocumentSection currentSection = null;
using (StreamReader reader = new StreamReader(filePath))
{
string line;
while ((line = reader.ReadLine()) != null)
{
if (string.IsNullOrWhiteSpace(line) || line.StartsWith(";"))
{
continue;
}
if (line.StartsWith("[") && line.EndsWith("]"))
{
currentSection = new AssDocumentSection();
sections.Add(line.Substring(1, line.Length - 2), currentSection);
continue;
}
Match match = Regex.Match(line, @"(\w+):\s*(.+)");
if (!match.Success)
{
throw new InvalidDataException($"Unrecognized line in .ass: {line}");
}
if (currentSection == null)
{
throw new InvalidDataException($"Line {line} is not inside a section");
}
string type = match.Groups[1].Value;
List <string> values = match.Groups[2].Value.Split(",", currentSection.Format?.Count);
if (type == "Format")
{
if (currentSection.Format != null)
{
throw new InvalidDataException("Section has multiple Format items");
}
currentSection.SetFormat(values.Select(v => v.Trim()).ToList());
}
else
{
currentSection.AddItem(type, values);
}
}
}
return(sections);
}
public AssDocument(string filePath, List <AssStyleOptions> styleOptions = null)
{
RegisterTagHandlers();
Dictionary <string, AssDocumentSection> fileSections = ReadDocument(filePath);
AssDocumentSection infoSection = fileSections["Script Info"];
VideoDimensions = new Size(infoSection.GetItemInt("PlayResX", 384), infoSection.GetItemInt("PlayResY", 288));
_styles = fileSections["V4+ Styles"].MapItems("Style", i => new AssStyle(i))
.ToDictionary(s => s.Name);
if (styleOptions != null)
{
_styleOptions = styleOptions.ToDictionary(o => o.Name);
}
DefaultFontSize = (_styles.GetOrDefault("Default") ?? _styles.First().Value).FontSize;
foreach (AssDialogue dialogue in fileSections["Events"].MapItems("Dialogue", i => new AssDialogue(i)))
{
AssStyle style = GetStyle(dialogue.Style);
if (style == null)
{
throw new Exception($"Line \"{dialogue.Text}\" refers to style \"{dialogue.Style}\" which doesn't exist.");
}
AssStyleOptions options = GetStyleOptions(dialogue.Style);
List <AssLine> lines = ParseLine(dialogue, style, options);
Lines.AddRange(lines.SelectMany(ExpandLine));
}
EmulateKaraokeForSimultaneousLines();
foreach (AssLine line in Lines)
{
MergeIdenticallyFormattedSections(line);
line.NormalizeAlpha();
}
}
public AssDocumentItem(AssDocumentSection section, string type, List <string> values)
{
Section = section;
Type = type;
Values = values;
}
