/// <summary>
/// Returns all boundaries matching the pattern in a text
/// </summary>
/// <param name="pattern">Search pattern</param>
/// <param name="text">Text</param>
/// <returns>List of boundaries</returns>
private IEnumerable <Boundary> EnumerateMatchingBoundaries(SearchPattern pattern, string text)
{
MatchCollection matches = pattern.Expression.Matches(text);
var matchCount = 0;
foreach (Match m in matches)
{
Boundary bound = new Boundary()
{
Index = m.Index, Length = m.Length
};
if (ScopeMatch(pattern, bound, text))
{
yield return(bound);
//firewall in case the pattern match count is exceedingly high
if (_stopAfterFirstMatch || matchCount++ > MAX_PATTERN_MATCHES)
{
yield break;
}
}
}
}
/// <summary>
/// Returns all boundaries matching the pattern in a text
/// </summary>
/// <param name="pattern">Search pattern</param>
/// <param name="text">Text</param>
/// <returns>List of boundaries</returns>
private List <Boundary> MatchPattern(SearchPattern pattern, string text)
{
List <Boundary> matchList = new List <Boundary>();
RegexOptions reopt = RegexOptions.None;
if (pattern.Modifiers != null && pattern.Modifiers.Length > 0)
{
reopt |= (pattern.Modifiers.Contains("i")) ? RegexOptions.IgnoreCase : RegexOptions.None;
reopt |= (pattern.Modifiers.Contains("m")) ? RegexOptions.Multiline : RegexOptions.None;
}
Regex patRegx = new Regex(pattern.Pattern, reopt);
MatchCollection matches = patRegx.Matches(text);
if (matches.Count > 0)
{
foreach (Match m in matches)
{
Boundary bound = new Boundary()
{
Index = m.Index, Length = m.Length
};
if (ScopeMatch(pattern, bound, text))
{
matchList.Add(bound);
}
if (_stopAfterFirstMatch)
{
break;
}
}
}
return(matchList);
}
/// <summary>
/// Returns all boundaries matching the pattern
/// </summary>
/// <param name="pattern">Search pattern</param>
/// <returns>List of boundaries</returns>
public List <Boundary> MatchPattern(SearchPattern pattern)
{
return(MatchPattern(pattern, _content));
}
/// <summary>
/// Returns all boundaries matching the pattern
/// </summary>
/// <param name="pattern">Search pattern</param>
/// <returns>List of boundaries</returns>
public IEnumerable <Boundary> EnumerateMatchingBoundaries(SearchPattern pattern)
{
return(EnumerateMatchingBoundaries(pattern, _content));
}
