/// <summary>
/// Returns true if the string matches the pattern which may contain * and ? wildcards.
/// </summary>
/// <param name="pattern">Pattern to match.</param>
/// <param name="fileName">Filename to match.</param>
/// <param name="caseSensitive">If the match is case sensitive or not.</param>
/// <returns>True if the patterna and the fileName match, false if not.</returns>
/// <remarks>
/// Based on robagar C# port of Jack Handy Codeproject article:
/// http://www.codeproject.com/string/wildcmp.asp#xx1000279xx
/// </remarks>
private bool Match(string pattern, string fileName, bool caseSensitive)
{
// if not concerned about case, convert both string and pattern
// to lower case for comparison
if (!caseSensitive)
{
pattern = pattern.ToLower();
fileName = fileName.ToLower();
}
if (string.IsNullOrEmpty(pattern))
{
return(false); //如果空字符 返回没有
}
if (pattern.CompareTo("*") == 0 || pattern.CompareTo("*.*") == 0)
{
return(true);//快速匹配
}
// if pattern doesn't actually contain any wildcards, use simple equality
//if (pattern.IndexOfAny(Wildcards) == -1)//不存在匹配符号
// return (fileName == pattern);
bool findP = false;
foreach (var v1 in Wildcards)
{
foreach (var v2 in pattern)
{
if (v1.CompareTo(v2) == 0)
{
findP = true; break;
}
}
}
if (!findP)
{
return(fileName == pattern);
}
// otherwise do pattern matching
SearchPattern mSearchPattern = new SearchPattern(pattern);
return(mSearchPattern.IsMatch(fileName));
//下面逻辑可能有点问题
int i = 0;
int j = 0;
while (i < fileName.Length && j < pattern.Length && pattern[j] != '*')
{
if ((pattern[j] != fileName[i]) && (pattern[j] != '?'))
{
return(false);
}
i++;
j++;
}
// if we have reached the end of the pattern without finding a * wildcard,
// the match must fail if the string is longer or shorter than the pattern
if (j == pattern.Length)
{
return(fileName.Length == pattern.Length);
}
int cp = 0;
int mp = 0;
while (i < fileName.Length)
{
if (j < pattern.Length && pattern[j] == '*')
{
if ((j++) >= pattern.Length)
{
return(true);
}
mp = j;
cp = i + 1;
}
else if (j < pattern.Length && (pattern[j] == fileName[i] || pattern[j] == '?'))
{
j++;
i++;
}
else
{
j = mp;
i = cp++;
}
}
while (j < pattern.Length && pattern[j] == '*')
{
j++;
}
return(j >= pattern.Length);
}
