/* Public members */
/// <summary>Searches for text using the specified search options.</summary>
/// <param name="options">The search options.</param>
/// <returns>The search results, or null in case no results were found.</returns>
public SubtitleSearchResults Find(SubtitleSearchOptions options)
{
if (options.Backwards)
{
return(FindBackward(options));
}
else
{
return(FindForward(options));
}
}
/// <summary>Searches backward for text using the specified search options.</summary>
/// <param name="options">The search options.</param>
/// <returns>The search results, or null in case no results were found.</returns>
private SubtitleSearchResults FindBackward(SubtitleSearchOptions options)
{
SubtitleCollection collection = subtitles.Collection;
if (collection.Count == 0)
{
return(null);
}
/* Search the subtitle starting at the startIndex */
SubtitleSearchResults results = FindInSubtitleFromIndex(options.StartSubtitle, options.LineBreak, options.Regex, options.StartIndex, options.TextType, options.Backwards);
if (results != null)
{
return(results);
}
/* Iterate through the start of the collection */
for (int subtitleNumber = options.StartSubtitle - 1; subtitleNumber > 0; subtitleNumber--)
{
results = FindInSubtitle(subtitleNumber, options.LineBreak, options.Regex, options.Backwards);
if (results != null)
{
return(results);
}
}
if (options.Wrap)
{
/* Iterate from the end back to the subtitle */
for (int subtitleNumber = collection.Count - 1; subtitleNumber > options.StartSubtitle; subtitleNumber--)
{
results = FindInSubtitle(subtitleNumber, options.LineBreak, options.Regex, options.Backwards);
if (results != null)
{
return(results);
}
}
/* Search the subtitle ending at the startIndex */
results = FindInSubtitleTillIndex(options.StartSubtitle, options.LineBreak, options.Regex, options.StartIndex, options.TextType, options.Backwards);
if (results != null)
{
return(results);
}
}
/* Text not found */
return(null);
}
/* Public members */
/// <summary>Searches for text using the specified search options.</summary>
/// <param name="options">The search options.</param>
/// <returns>The search results, or null in case no results were found.</returns>
public SubtitleSearchResults Find (SubtitleSearchOptions options) {
if (options.Backwards)
return FindBackward(options);
else
return FindForward(options);
}
/// <summary>Searches backward for text using the specified search options.</summary>
/// <param name="options">The search options.</param>
/// <returns>The search results, or null in case no results were found.</returns>
private SubtitleSearchResults FindBackward (SubtitleSearchOptions options) {
SubtitleCollection collection = subtitles.Collection;
if (collection.Count == 0)
return null;
/* Search the subtitle starting at the startIndex */
SubtitleSearchResults results = FindInSubtitleFromIndex(options.StartSubtitle, options.LineBreak, options.Regex, options.StartIndex, options.TextType, options.Backwards);
if (results != null)
return results;
/* Iterate through the start of the collection */
for (int subtitleNumber = options.StartSubtitle - 1 ; subtitleNumber > 0 ; subtitleNumber--) {
results = FindInSubtitle(subtitleNumber, options.LineBreak, options.Regex, options.Backwards);
if (results != null)
return results;
}
if (options.Wrap) {
/* Iterate from the end back to the subtitle */
for (int subtitleNumber = collection.Count - 1 ; subtitleNumber > options.StartSubtitle ; subtitleNumber--) {
results = FindInSubtitle(subtitleNumber, options.LineBreak, options.Regex, options.Backwards);
if (results != null)
return results;
}
/* Search the subtitle ending at the startIndex */
results = FindInSubtitleTillIndex(options.StartSubtitle, options.LineBreak, options.Regex, options.StartIndex, options.TextType, options.Backwards);
if (results != null)
return results;
}
/* Text not found */
return null;
}
