public string Capture(int nth)
{
if (disposed)
{
throw new ObjectDisposedException("ORegex");
}
if (!Valid)
{
throw new ArgumentException(string.Format("Invalid Onigmo regular expression: {0}", regexString));
}
if (!regionSet)
{
throw new InvalidOperationException("ORegex.Capture requires that ORegex.Search be run first.");
}
var pos = OnigInterop.onigwrap_pos(region, nth);
if (pos < 0)
{
return(null);
}
var len = OnigInterop.onigwrap_len(region, nth);
return(text.Substring(pos, len));
}
public ORegex(string pattern, bool ignoreCase = true, bool multiline = false)
{
int ignoreCaseArg = ignoreCase ? 1 : 0;
int multilineArg = multiline ? 1 : 0;
regex = OnigInterop.onigwrap_create(pattern, pattern.Length * 2, ignoreCaseArg, multilineArg);
if (!Valid)
{
regexString = pattern; // Save the pattern off on invalid patterns for throwing exceptions
}
}
public int IndexIn(string text, int offset = 0)
{
if (disposed)
{
throw new ObjectDisposedException("ORegex");
}
if (!Valid)
{
throw new ArgumentException(string.Format("Invalid Onigmo regular expression: {0}", regexString));
}
return(OnigInterop.onigwrap_index_in(regex, text, offset * 2, text.Length * 2));
}
protected virtual void Dispose(bool disposing)
{
if (!disposed)
{
disposed = true;
if (regex != IntPtr.Zero)
{
OnigInterop.onigwrap_free(regex);
}
if (regionSet)
{
OnigInterop.onigwrap_region_free(region);
}
}
}
public int MatchLength(int nth)
{
if (disposed)
{
throw new ObjectDisposedException("ORegex");
}
if (!Valid)
{
throw new ArgumentException(string.Format("Invalid Onigmo regular expression: {0}", regexString));
}
if (!regionSet)
{
throw new InvalidOperationException("ORegex.MatchLength requires that ORegex.Search be run first.");
}
return(OnigInterop.onigwrap_len(region, nth));
}
public void Search(string text, int offset = 0)
{
if (disposed)
{
throw new ObjectDisposedException("ORegex");
}
if (!Valid)
{
throw new ArgumentException(string.Format("Invalid Onigmo regular expression: {0}", regexString));
}
this.text = text;
if (regionSet)
{
OnigInterop.onigwrap_region_free(region);
}
region = OnigInterop.onigwrap_search(regex, text, offset * 2, text.Length * 2);
regionSet = true;
}
/// <summary>
/// Performs a thread safe search and returns the results in a list
/// </summary>
/// <param name="text">The text to search</param>
/// <param name="offset">An offset from which to start</param>
/// <returns></returns>
public List <ORegexResult> SafeSearch(string text, int offset = 0)
{
if (disposed)
{
throw new ObjectDisposedException("ORegex");
}
if (!Valid)
{
throw new ArgumentException(string.Format("Invalid Onigmo regular expression: {0}", regexString));
}
var resultList = new List <ORegexResult>();
lock (syncObject)
{
Search(text, offset);
var captureCount = OnigInterop.onigwrap_num_regs(region);
for (var capture = 0; capture < captureCount; capture++)
{
var pos = OnigInterop.onigwrap_pos(region, capture);
if (capture == 0 && pos == -1)
{
break;
}
resultList.Add(new ORegexResult()
{
Position = pos,
Length = pos == -1 ? 0 : OnigInterop.onigwrap_len(region, capture)
});
}
this.text = null;
OnigInterop.onigwrap_region_free(region);
regionSet = false;
}
return(resultList);
}
