private static IEnumerable<BaseOperator> ParsePatternWorker(string patternText)
{
var pattern = new PatternWrapper(patternText);
if (pattern.IsEmpty)
yield return new OpNoMatch();
// Check for "/" suffix
if (IsPathSeparator(pattern.Last)) {
yield return new OpDirectoryOnly();
pattern.RemoveLast();
}
if (pattern.IsEmpty)
yield return new OpNoMatch();
// Check for "/" prefix
if (IsPathSeparator(pattern.First))
pattern.Skip(1);
else
yield return new OpRelativeDirectory();
// Check for "**/" prefix
if (pattern.StartsWith("**\\"))
pattern.Skip(3);
if (pattern.IsEmpty)
yield return new OpNoMatch();
while (!pattern.IsEmpty) {
var anyDirIndex = pattern.IndexOf("\\**\\");
if (anyDirIndex >= 0) {
if (anyDirIndex >= pattern.Index)
yield return new OpText(pattern.Take(anyDirIndex - pattern.Index));
yield return new OpRecursiveDir();
pattern.Skip(4);
continue;
}
var asteriskIndex = pattern.IndexOf("*");
if (asteriskIndex >= 0) {
if (asteriskIndex > pattern.Index)
yield return new OpText(pattern.Take(asteriskIndex - pattern.Index));
yield return new OpAsterisk();
pattern.Skip(1);
} else {
yield return new OpText(pattern.Take(pattern.Remaining));
}
}
}
private static IEnumerable <BaseOperator> ParsePatternWorker(PatternWrapper pattern)
{
var result = new List <BaseOperator>();
if (pattern.IsEmpty)
{
result.Add(new OpIsNoMatch());
return(result);
}
// Check for "/" suffix
if (pattern.Last == PathSeparator)
{
result.Add(new OpIsDirectoryOnly());
pattern.RemoveLast();
}
if (pattern.IsEmpty)
{
result.Add(new OpIsNoMatch());
return(result);
}
// Check for "/" prefix
if (pattern.First == PathSeparator)
{
pattern.Skip(1);
}
else
{
result.Add(new OpIsRelativeDirectory());
}
// Check for "**/" prefix
if (pattern.StartsWith(AnyDirMatchPrefix))
{
pattern.Skip(3);
}
if (pattern.IsEmpty)
{
result.Add(new OpIsNoMatch());
return(result);
}
var sb = new StringBuilder();
Action addOpText = () => {
if (sb.Length > 0)
{
result.Add(new OpText(sb.ToString()));
sb.Clear();
}
};
while (!pattern.IsEmpty)
{
if (pattern.StartsWith(AnyDirMatch))
{
addOpText();
result.Add(new OpRecursiveDir());
pattern.Skip(4);
}
else if (pattern.First == PathSeparator)
{
addOpText();
result.Add(new OpDirectorySeparator());
pattern.Skip(1);
}
else if (pattern.First == '*')
{
addOpText();
result.Add(new OpAsterisk());
pattern.Skip(1);
}
else
{
sb.Append(pattern.First);
pattern.Skip(1);
}
}
addOpText();
return(result);
}
private static IEnumerable<BaseOperator> ParsePatternWorker(PatternWrapper pattern) {
var result = new List<BaseOperator>();
if (pattern.IsEmpty) {
result.Add(new OpIsNoMatch());
return result;
}
// Check for "/" suffix
if (pattern.Last == PathSeparator) {
result.Add(new OpIsDirectoryOnly());
pattern.RemoveLast();
}
if (pattern.IsEmpty) {
result.Add(new OpIsNoMatch());
return result;
}
// Check for "/" prefix
if (pattern.First == PathSeparator)
pattern.Skip(1);
else
result.Add(new OpIsRelativeDirectory());
// Check for "**/" prefix
if (pattern.StartsWith(AnyDirMatchPrefix))
pattern.Skip(3);
if (pattern.IsEmpty) {
result.Add(new OpIsNoMatch());
return result;
}
var sb = new StringBuilder();
Action addOpText = () => {
if (sb.Length > 0) {
result.Add(new OpText(sb.ToString()));
sb.Clear();
}
};
while (!pattern.IsEmpty) {
if (pattern.StartsWith(AnyDirMatch)) {
addOpText();
result.Add(new OpRecursiveDir());
pattern.Skip(4);
} else if (pattern.First == PathSeparator) {
addOpText();
result.Add(new OpDirectorySeparator());
pattern.Skip(1);
} else if (pattern.First == '*') {
addOpText();
result.Add(new OpAsterisk());
pattern.Skip(1);
} else {
sb.Append(pattern.First);
pattern.Skip(1);
}
}
addOpText();
return result;
}