internal SpellingError(ISpellingError error, SpellChecker spellChecker, string text, bool shouldSuppressCOMExceptions = true, bool shouldReleaseCOMObject = true)
{
if (error == null)
{
throw new ArgumentNullException(nameof(error));
}
StartIndex = error.StartIndex;
Length = error.Length;
CorrectiveAction = (CorrectiveAction)error.CorrectiveAction;
Replacement = error.Replacement;
PopulateSuggestions(error, spellChecker, text, shouldSuppressCOMExceptions, shouldReleaseCOMObject);
}
/// <summary>
/// Checks the spelling of the supplied text and returns a collection of spelling errors
/// </summary>
/// <param name="text">The text to check</param>
/// <returns>The results of spell checking</returns>
public IEnumerable <SpellingError> Check(string text)
{
var errors = this.spellChecker.Check(text);
ISpellingError currentError = null;
try
{
while ((currentError = errors.Next()) != null)
{
var action = RecommendedAction.None;
switch (currentError.CorrectiveAction)
{
case CORRECTIVE_ACTION.CORRECTIVE_ACTION_DELETE:
action = RecommendedAction.Delete;
break;
case CORRECTIVE_ACTION.CORRECTIVE_ACTION_GET_SUGGESTIONS:
action = RecommendedAction.GetSuggestions;
break;
case CORRECTIVE_ACTION.CORRECTIVE_ACTION_REPLACE:
action = RecommendedAction.Replace;
break;
}
yield return(new SpellingError
{
StartIndex = currentError.StartIndex,
Length = currentError.Length,
RecommendedAction = action,
RecommendedReplacement = currentError.Replacement
});
Marshal.ReleaseComObject(currentError);
}
}
finally
{
if (currentError != null)
{
Marshal.ReleaseComObject(currentError);
}
Marshal.ReleaseComObject(errors);
}
}
/// <summary>
/// Determines whether an RCW.IEnumSpellingError instance has any errors,
/// without asking for expensive details.
/// </summary>
internal static bool HasErrors(
this IEnumSpellingError spellingErrors,
bool shouldSuppressCOMExceptions = true,
bool shouldReleaseCOMObject = true)
{
if (spellingErrors == null)
{
throw new ArgumentNullException(nameof(spellingErrors));
}
bool result = false;
try
{
while (!result)
{
ISpellingError iSpellingError = spellingErrors.Next();
if (iSpellingError == null)
{
// no more ISpellingError objects left in the enum
break;
}
if ((CorrectiveAction)iSpellingError.CorrectiveAction != CorrectiveAction.None)
{
result = true;
}
Marshal.ReleaseComObject(iSpellingError);
}
}
catch (COMException) when(shouldSuppressCOMExceptions)
{
// do nothing here
// the exception filter does it all.
}
finally
{
if (shouldReleaseCOMObject)
{
Marshal.ReleaseComObject(spellingErrors);
}
}
return(result);
}
internal static List <SpellingError> ToList(
this IEnumSpellingError spellingErrors,
SpellChecker spellChecker,
string text,
bool shouldSuppressCOMExceptions = true,
bool shouldReleaseCOMObject = true)
{
if (spellingErrors == null)
{
throw new ArgumentNullException(nameof(spellingErrors));
}
var result = new List <SpellingError>();
try
{
while (true)
{
ISpellingError iSpellingError = spellingErrors.Next();
if (iSpellingError == null)
{
// no more ISpellingError objects left in the enum
break;
}
var error = new SpellingError(iSpellingError, spellChecker, text, shouldSuppressCOMExceptions, true);
result.Add(error);
}
}
catch (COMException) when(shouldSuppressCOMExceptions)
{
// do nothing here
// the exception filter does it all.
}
finally
{
if (shouldReleaseCOMObject)
{
Marshal.ReleaseComObject(spellingErrors);
}
}
return(result);
}
private void PopulateSuggestions(ISpellingError error, SpellChecker spellChecker, string text, bool shouldSuppressCOMExceptions, bool shouldReleaseCOMObject)
{
try
{
_suggestions = new List <string>();
if (CorrectiveAction == CorrectiveAction.GetSuggestions)
{
var suggestions = spellChecker.Suggest(text, shouldSuppressCOMExceptions);
_suggestions.AddRange(suggestions);
}
else if (CorrectiveAction == CorrectiveAction.Replace)
{
_suggestions.Add(Replacement);
}
}
finally
{
if (shouldReleaseCOMObject)
{
Marshal.ReleaseComObject(error);
}
}
}