public RegexCharClass(RegexBuffer buffer)
{
int startLocation = buffer.Offset;
buffer.MoveNext();
Match match = new Regex(@"(?<Negated>\^?)(?<Class>.+?)\]").Match(buffer.String);
if (match.Success)
{
if (match.Groups["Negated"].ToString() == "^")
{
this.description = string.Format("Any character not in \"{0}\"", match.Groups["Class"]);
}
else
{
this.description = string.Format("Any character in \"{0}\"", match.Groups["Class"]);
}
buffer.Offset += match.Groups[0].Length;
}
else
{
this.description = "missing ']' in character class";
}
buffer.AddLookup(this, startLocation, buffer.Offset - 1);
}
public RegexQuantifier(RegexBuffer buffer)
{
int startLocation = buffer.Offset;
buffer.MoveNext();
Match match = new Regex(@"(?<n>\d+)(?<Comma>,?)(?<m>\d*)\}").Match(buffer.String);
if (match.Success)
{
if (match.Groups["m"].Length != 0)
{
this.description = string.Format("At least {0}, but not more than {1} times", match.Groups["n"], match.Groups["m"]);
}
else if (match.Groups["Comma"].Length != 0)
{
this.description = string.Format("At least {0} times", match.Groups["n"]);
}
else
{
this.description = string.Format("Exactly {0} times", match.Groups["n"]);
}
buffer.Offset += match.Groups[0].Length;
if (!buffer.AtEnd && (buffer.Current == '?'))
{
this.description = this.description + " (non-greedy)";
buffer.MoveNext();
}
}
else
{
this.description = "missing '}' in quantifier";
}
buffer.AddLookup(this, startLocation, buffer.Offset - 1);
}
public RegexConditional(RegexBuffer buffer)
{
this.startLocation = buffer.Offset;
this.expression = new RegexExpression(buffer);
this.CheckClosingParen(buffer);
this.yesNo = new RegexExpression(buffer);
this.CheckClosingParen(buffer);
buffer.AddLookup(this, this.startLocation, buffer.Offset - 1);
}
public RegexCapture(RegexBuffer buffer)
{
this.startLocation = buffer.Offset;
buffer.MoveNext();
buffer.ClearInSeries();
if (buffer.Current == '?')
{
bool flag = this.CheckNamed(buffer);
if (!flag)
{
flag = this.CheckBalancedGroup(buffer);
}
if (!flag)
{
flag = this.CheckNonCapturing(buffer);
}
if (!flag)
{
flag = this.CheckOptions(buffer);
}
if (!flag)
{
flag = this.CheckLookahead(buffer);
}
if (!flag)
{
flag = this.CheckNonBacktracking(buffer);
}
if (!flag)
{
flag = this.CheckConditional(buffer);
}
}
else if (!this.HandlePlainOldCapture(buffer))
{
throw new Exception(string.Format("Unrecognized capture: {0}", buffer.String));
}
buffer.AddLookup(this, this.startLocation, buffer.Offset - 1);
}
public RegexAlternate(RegexBuffer buffer)
{
buffer.AddLookup(this, buffer.Offset, buffer.Offset);
buffer.MoveNext();
}
public RegexCharacter(RegexBuffer buffer)
{
int startLocation = buffer.Offset;
bool flag = false;
switch (buffer.Current)
{
case ' ':
this.character = "' ' (space)";
buffer.MoveNext();
break;
case '$':
this.character = "$ (anchor to end of string)";
buffer.MoveNext();
break;
case '*':
this.character = "* (zero or more times)";
buffer.MoveNext();
this.special = true;
flag = true;
break;
case '+':
this.character = "+ (one or more times)";
buffer.MoveNext();
this.special = true;
flag = true;
break;
case '.':
this.character = ". (any character)";
buffer.MoveNext();
this.special = true;
break;
case '?':
this.character = "? (zero or one time)";
buffer.MoveNext();
this.special = true;
flag = true;
break;
case '\\':
this.DecodeEscape(buffer);
break;
case '^':
this.character = "^ (anchor to start of string)";
buffer.MoveNext();
break;
default:
this.character = buffer.Current.ToString();
buffer.MoveNext();
this.special = false;
break;
}
if ((flag && !buffer.AtEnd) && (buffer.Current == '?'))
{
this.character = this.character + " (non-greedy)";
buffer.MoveNext();
}
buffer.AddLookup(this, startLocation, buffer.Offset - 1, this.character.Length == 1);
}
