/// <summary>Parses the specified text, using the specified format.</summary>
/// <remarks>The created <see cref="SubtitleCollection" /> will have its <see cref="SubtitleProperties" /> property set to null.
/// It is mandatory to use <see cref="SubtitleCollection.SetPropertiesForAll" /> after.</remarks>
internal ParsingProperties Parse(string text, SubtitleFormat format, float inputFrameRate,
out SubtitleCollection collection, out IncompleteSubtitleCollection incompleteSubtitles)
{
collection = new SubtitleCollection();
incompleteSubtitles = new IncompleteSubtitleCollection();
ParsingProperties properties = new ParsingProperties();
properties.InputFrameRate = inputFrameRate;
Regex subtitleRegex = null;
int bodyIndex = 0;
text = ClearComments(text, format);
/* Read the headers if available */
if (format.Mode == SubtitleMode.Both)
{
//Read headers to know if format is using Times or Frames
bodyIndex = text.Length;
int lastIndex = ReadHeaders(text, bodyIndex, format, properties);
subtitleRegex = CreateSubtitleRegex(format, properties.TimingMode);
/* Detect body index from matching the first subtitle or the end of headers */
bodyIndex = FindBodyIndex(text, format, subtitleRegex);
if (lastIndex > bodyIndex)
{
bodyIndex = lastIndex;
}
}
else
{
//End of headers is detected by start of subtitles' body
properties.TimingMode = format.ModeAsTimingMode;
subtitleRegex = CreateSubtitleRegex(format);
bodyIndex = FindBodyIndex(text, format, subtitleRegex);
ReadHeaders(text, bodyIndex, format, properties);
}
/* Get properties from the whole input, if available */
format.GlobalInputGetProperties(text, properties);
int textLength = text.Length;
/* Read the subtitles */
bodyIndex = ReadSubtitles(text, bodyIndex, textLength, subtitleRegex, format,
properties, collection, incompleteSubtitles);
/* Read the end text of the subtitles */
bodyIndex = ReadBodyEnd(text, bodyIndex, format, collection, incompleteSubtitles);
/* Check if there's still text remaining */
if ((bodyIndex < textLength) && includeIncompleteSubtitles)
{
AddIncompleteSubtitle(incompleteSubtitles, text.Substring(bodyIndex), collection.Count);
}
return(properties);
}
private void AddIncompleteSubtitle(IncompleteSubtitleCollection incompleteSubtitles, string incompleteText,
int previousSubtitle)
{
if (!HasOnlyWhiteSpaces(incompleteText))
{
IncompleteSubtitle incompleteSubtitle = new IncompleteSubtitle(previousSubtitle, incompleteText);
incompleteSubtitles.Add(incompleteSubtitle);
}
}
private void AddIncompleteSubtitleIfExists(string text, Match match, int bodyIndex,
int subtitleCount, IncompleteSubtitleCollection incompleteSubtitles)
{
if (includeIncompleteSubtitles && IsThereIncompleteText(match, bodyIndex))
{
int length = match.Index - bodyIndex;
string incompleteText = text.Substring(bodyIndex, length);
AddIncompleteSubtitle(incompleteSubtitles, incompleteText, subtitleCount);
}
}
private int ReadBodyEnd(string text, int bodyIndex, SubtitleFormat format,
SubtitleCollection collection, IncompleteSubtitleCollection incompleteSubtitles)
{
Regex bodyEnd = new Regex(format.BodyEndIn + @"\s*", RegexOptions.IgnoreCase);
Match bodyEndMatch = bodyEnd.Match(text, bodyIndex);
if (bodyEndMatch.Success)
{
AddIncompleteSubtitleIfExists(text, bodyEndMatch, bodyIndex, collection.Count, incompleteSubtitles);
bodyIndex = bodyEndMatch.Index + bodyEndMatch.Length;
}
return(bodyIndex);
}
/// <summary>Parses the specified text, using the specified format.</summary>
/// <remarks>The created <see cref="SubtitleCollection" /> will have its <see cref="SubtitleProperties" /> property set to null.
/// It is mandatory to use <see cref="SubtitleCollection.SetPropertiesForAll" /> after.</remarks>
internal ParsingProperties Parse (string text, SubtitleFormat format, float inputFrameRate,
out SubtitleCollection collection, out IncompleteSubtitleCollection incompleteSubtitles){
collection = new SubtitleCollection();
incompleteSubtitles = new IncompleteSubtitleCollection();
ParsingProperties properties = new ParsingProperties();
properties.InputFrameRate = inputFrameRate;
Regex subtitleRegex = null;
int bodyIndex = 0;
text = ClearComments(text, format);
/* Read the headers if available */
if (format.Mode == SubtitleMode.Both) {
//Read headers to know if format is using Times or Frames
bodyIndex = text.Length;
int lastIndex = ReadHeaders(text, bodyIndex, format, properties);
subtitleRegex = CreateSubtitleRegex(format, properties.TimingMode);
/* Detect body index from matching the first subtitle or the end of headers */
bodyIndex = FindBodyIndex(text, format, subtitleRegex);
if (lastIndex > bodyIndex)
bodyIndex = lastIndex;
}
else {
//End of headers is detected by start of subtitles' body
properties.TimingMode = format.ModeAsTimingMode;
subtitleRegex = CreateSubtitleRegex(format);
bodyIndex = FindBodyIndex(text, format, subtitleRegex);
ReadHeaders(text, bodyIndex, format, properties);
}
/* Get properties from the whole input, if available */
format.GlobalInputGetProperties(text, properties);
int textLength = text.Length;
/* Read the subtitles */
bodyIndex = ReadSubtitles(text, bodyIndex, textLength, subtitleRegex, format,
properties, collection, incompleteSubtitles);
/* Read the end text of the subtitles */
bodyIndex = ReadBodyEnd(text, bodyIndex, format, collection, incompleteSubtitles);
/* Check if there's still text remaining */
if ((bodyIndex < textLength) && includeIncompleteSubtitles)
AddIncompleteSubtitle(incompleteSubtitles, text.Substring(bodyIndex), collection.Count);
return properties;
}
private int ReadSubtitles(string text, int bodyIndex, int textLength, Regex subtitleRegex, SubtitleFormat format,
ParsingProperties properties, SubtitleCollection collection, IncompleteSubtitleCollection incompleteSubtitles)
{
Subtitle previousSubtitle = null;
/* Read the subtitles. BodyIndex points to the start of the subtitles, skipping its possible beginning text*/
while (bodyIndex < textLength)
{
Match match = subtitleRegex.Match(text, bodyIndex);
if (match.Success)
{
Subtitle subtitle = ParseSubtitle(match, format, properties, previousSubtitle);
collection.Add(subtitle);
AddIncompleteSubtitleIfExists(text, match, bodyIndex, collection.Count, incompleteSubtitles);
bodyIndex = match.Index + match.Length;
previousSubtitle = subtitle;
}
else
{
break;
}
}
return(bodyIndex);
}
private void AddIncompleteSubtitleIfExists (string text, Match match, int bodyIndex,
int subtitleCount, IncompleteSubtitleCollection incompleteSubtitles) {
if (includeIncompleteSubtitles && IsThereIncompleteText(match, bodyIndex)) {
int length = match.Index - bodyIndex;
string incompleteText = text.Substring(bodyIndex, length);
AddIncompleteSubtitle(incompleteSubtitles, incompleteText, subtitleCount);
}
}
private void AddIncompleteSubtitle (IncompleteSubtitleCollection incompleteSubtitles, string incompleteText,
int previousSubtitle) {
if (!HasOnlyWhiteSpaces(incompleteText)) {
IncompleteSubtitle incompleteSubtitle = new IncompleteSubtitle(previousSubtitle, incompleteText);
incompleteSubtitles.Add(incompleteSubtitle);
}
}
private int ReadBodyEnd (string text, int bodyIndex, SubtitleFormat format,
SubtitleCollection collection, IncompleteSubtitleCollection incompleteSubtitles) {
Regex bodyEnd = new Regex(format.BodyEndIn + @"\s*", RegexOptions.IgnoreCase);
Match bodyEndMatch = bodyEnd.Match(text, bodyIndex);
if (bodyEndMatch.Success) {
AddIncompleteSubtitleIfExists(text, bodyEndMatch, bodyIndex, collection.Count, incompleteSubtitles);
bodyIndex = bodyEndMatch.Index + bodyEndMatch.Length;
}
return bodyIndex;
}
private int ReadSubtitles (string text, int bodyIndex, int textLength, Regex subtitleRegex, SubtitleFormat format,
ParsingProperties properties, SubtitleCollection collection, IncompleteSubtitleCollection incompleteSubtitles) {
Subtitle previousSubtitle = null;
/* Read the subtitles. BodyIndex points to the start of the subtitles, skipping its possible beginning text*/
while (bodyIndex < textLength) {
Match match = subtitleRegex.Match(text, bodyIndex);
if (match.Success) {
Subtitle subtitle = ParseSubtitle(match, format, properties, previousSubtitle);
collection.Add(subtitle);
AddIncompleteSubtitleIfExists(text, match, bodyIndex, collection.Count, incompleteSubtitles);
bodyIndex = match.Index + match.Length;
previousSubtitle = subtitle;
}
else
break;
}
return bodyIndex;
}