protected internal override SimpleMatch Match(string input, int beginning, int length) {
int actualLen = length-1; //there must be something after @
for (int i = beginning; i < actualLen; i++) {
char ch = input[i];
switch(ch) {
case '\'': {
int end = input.IndexOf('\'', i+1);
if (end < 0)
break;
i = end;
break;
}
case '"': {
int end = input.IndexOf('"', i+1);
if (end < 0)
break;
i = end;
break;
}
case '[': {
int end = input.IndexOf(']', i+1);
if (end < 0)
break;
i = end;
break;
}
case '@': {
int start = i;
do {
i++;
}while (i < length && input[i] == '@');
if (i - start > 1)
break;
while (i < length && IsWordChar(input[i]))
i++;
return new SimpleMatch(this, length, true, start, i-start, input);
}
}
}
return new SimpleMatch(this, length, false, length, 0, input);
}
}