internal System.Text.RegularExpressions.Match Run(bool quick, int prevlen, string input, int beginning, int length, int startat)
{
RegexRunner runner = null;
if ((startat < 0) || (startat > input.Length))
{
throw new ArgumentOutOfRangeException("start", SR.GetString("BeginIndexNotNegative"));
}
if ((length < 0) || (length > input.Length))
{
throw new ArgumentOutOfRangeException("length", SR.GetString("LengthNotNegative"));
}
runner = (RegexRunner)this.runnerref.Get();
if (runner == null)
{
if (this.factory != null)
{
runner = this.factory.CreateInstance();
}
else
{
runner = new RegexInterpreter(this.code, this.UseOptionInvariant() ? CultureInfo.InvariantCulture : CultureInfo.CurrentCulture);
}
}
System.Text.RegularExpressions.Match match = runner.Scan(this, input, beginning, beginning + length, startat, prevlen, quick);
this.runnerref.Release(runner);
return(match);
}
/// <summary>
/// Release an object back to the cache.
///
/// If the object is the one that's under lock, the lock is released.
/// If there is no cached object, then the lock is obtained and the object is placed in the cache.
/// </summary>
public void Release(object obj)
{
if (obj == null)
{
throw new ArgumentNullException(nameof(obj));
}
// if this reference owns the lock, release it
if (_obj == obj)
{
_obj = null;
_locked = 0;
return;
}
// if no reference owns the lock, try to cache this reference
if (_obj == null)
{
// try to obtain the lock
if (0 == Interlocked.Exchange(ref _locked, 1))
{
// if there's really no reference, cache this reference
if (_ref == null)
{
_ref = (RegexRunner)obj;
}
// release the lock
_locked = 0;
return;
}
}
}
/// <summary>
/// Return an object and grab an exclusive lock.
///
/// If the exclusive lock can't be obtained, null is returned;
/// if the object can't be returned, the lock is released.
/// </summary>
public RegexRunner Get()
{
// try to obtain the lock
if (0 == Interlocked.Exchange(ref _locked, 1))
{
// grab reference
RegexRunner obj = _ref;
// release the lock and return null if no reference
if (obj == null)
{
_locked = 0;
return(null);
}
// remember the reference and keep the lock
_obj = obj;
return(obj);
}
return(null);
}
/*
* Internal worker called by all the public APIs
*/
internal Match Run(bool quick, int prevlen, string input, int beginning, int length, int startat)
{
Match match;
RegexRunner runner = null;
if (startat < 0 || startat > input.Length)
{
throw new ArgumentOutOfRangeException(nameof(startat), SR.BeginIndexNotNegative);
}
if (length < 0 || length > input.Length)
{
throw new ArgumentOutOfRangeException(nameof(length), SR.LengthNotNegative);
}
// There may be a cached runner; grab ownership of it if we can.
runner = (RegexRunner)_runnerref.Get();
// Create a RegexRunner instance if we need to
if (runner == null)
{
// Use the compiled RegexRunner factory if the code was compiled to MSIL
if (factory != null)
{
runner = factory.CreateInstance();
}
else
{
runner = new RegexInterpreter(_code, UseOptionInvariant() ? CultureInfo.InvariantCulture : CultureInfo.CurrentCulture);
}
}
try
{
// Do the scan starting at the requested position
match = runner.Scan(this, input, beginning, beginning + length, startat, prevlen, quick, internalMatchTimeout);
}
finally
{
// Release or fill the cache slot
_runnerref.Release(runner);
}
#if DEBUG
if (Debug && match != null)
{
match.Dump();
}
#endif
return(match);
}
internal System.Text.RegularExpressions.Match Run(bool quick, int prevlen, string input, int beginning, int length, int startat)
{
RegexRunner runner = null;
if ((startat < 0) || (startat > input.Length))
{
throw new ArgumentOutOfRangeException();
}
if ((length < 0) || (length > input.Length))
{
throw new ArgumentOutOfRangeException();
}
runner = new RegexInterpreter(this.code, this.UseOptionInvariant() ? CultureInfo.InvariantCulture : CultureInfo.CurrentCulture);
return(runner.Scan(this, input, beginning, beginning + length, startat, prevlen, quick));
}
// Internal worker called by all the public APIs
internal Match Run(bool quick, int prevlen, String input, int beginning, int length, int startat)
{
Match match;
RegexRunner runner = null;
if (startat < 0 || startat > input.Length)
{
throw new ArgumentOutOfRangeException("start", ""); //XXX: SR.GetString(SR.BeginIndexNotNegative));
}
if (length < 0 || length > input.Length)
{
throw new ArgumentOutOfRangeException("length", ""); //XXX: SR.GetString(SR.LengthNotNegative));
}
// There may be a cached runner; grab ownership of it if we can.
runner = (RegexRunner)runnerref.Get();
// Create a RegexRunner instance if we need to
if (runner == null)
{
// Use the compiled RegexRunner factory if the code was compiled to MSIL
// if (factory != null)
// runner = factory.CreateInstance();
// else
runner = new RegexInterpreter(code, UseOptionInvariant() ? CultureInfo.InvariantCulture : CultureInfo.CurrentCulture);
}
// Do the scan starting at the requested position
match = runner.Scan(this, input, beginning, beginning + length, startat, prevlen, quick);
// Release or fill the cache slot
runnerref.Release(runner);
#if DBG
if (UseOptionDebug())
{
match.Dump();
}
#endif
return(match);
}
internal void Release(object obj)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (this._obj == obj)
{
this._obj = null;
this._locked = 0;
}
else if ((this._obj == null) && (Interlocked.Exchange(ref this._locked, 1) == 0))
{
if (this._ref == null)
{
this._ref = (RegexRunner)obj;
}
this._locked = 0;
}
}
internal void Release(object obj)
{
if (obj == null)
{
throw new ArgumentNullException("obj");
}
if (this._obj == obj)
{
this._obj = null;
this._locked = 0;
}
else if ((this._obj == null) && (Interlocked.Exchange(ref this._locked, 1) == 0))
{
if (this._ref == null)
{
this._ref = (RegexRunner) obj;
}
this._locked = 0;
}
}
/*
* Release an object back to the cache
*
* If the object is the one that's under lock, the lock
* is released.
*
* If there is no cached object, then the lock is obtained
* and the object is placed in the cache.
*
*/
internal void Release(Object obj) {
if (obj == null)
throw new ArgumentNullException("obj");
// if this reference owns the lock, release it
if (_obj == obj) {
_obj = null;
_locked = 0;
return;
}
// if no reference owns the lock, try to cache this reference
if (_obj == null) {
// try to obtain the lock
if (0 == Interlocked.Exchange(ref _locked, 1)) {
// if there's really no reference, cache this reference
if (_ref == null)
_ref = (RegexRunner) obj;
// release the lock
_locked = 0;
return;
}
}
}
