private void ResolveReferences()
{
int gid = 1;
Hashtable dict = new Hashtable();
ArrayList explicit_numeric_groups = null;
// number unnamed groups
foreach (CapturingGroup group in caps)
{
if (group.Name != null)
{
continue;
}
dict.Add(gid.ToString(), group);
group.Index = gid++;
++num_groups;
}
// number named groups
foreach (CapturingGroup group in caps)
{
if (group.Name == null)
{
continue;
}
if (dict.Contains(group.Name))
{
CapturingGroup prev = (CapturingGroup)dict [group.Name];
group.Index = prev.Index;
if (group.Index == gid)
{
gid++;
}
else if (group.Index > gid)
{
explicit_numeric_groups.Add(group);
}
continue;
}
if (Char.IsDigit(group.Name [0]))
{
int ptr = 0;
int group_gid = ParseDecimal(group.Name, ref ptr);
if (ptr == group.Name.Length)
{
group.Index = group_gid;
dict.Add(group.Name, group);
++num_groups;
if (group_gid == gid)
{
gid++;
}
else
{
// all numbers before 'gid' are already in the dictionary. So, we know group_gid > gid
if (explicit_numeric_groups == null)
{
explicit_numeric_groups = new ArrayList(4);
}
explicit_numeric_groups.Add(group);
}
continue;
}
}
string gid_s = gid.ToString();
while (dict.Contains(gid_s))
{
gid_s = (++gid).ToString();
}
dict.Add(gid_s, group);
dict.Add(group.Name, group);
group.Index = gid++;
++num_groups;
}
gap = gid; // == 1 + num_groups, if explicit_numeric_groups == null
if (explicit_numeric_groups != null)
{
HandleExplicitNumericGroups(explicit_numeric_groups);
}
// resolve references
foreach (Expression expr in refs.Keys)
{
string name = (string)refs [expr];
if (!dict.Contains(name))
{
if (expr is CaptureAssertion && !Char.IsDigit(name [0]))
{
continue;
}
BackslashNumber bn = expr as BackslashNumber;
if (bn != null && bn.ResolveReference(name, dict))
{
continue;
}
throw NewParseException("Reference to undefined group " +
(Char.IsDigit(name[0]) ? "number " : "name ") +
name);
}
CapturingGroup group = (CapturingGroup)dict[name];
if (expr is Reference)
{
((Reference)expr).CapturingGroup = group;
}
else if (expr is CaptureAssertion)
{
((CaptureAssertion)expr).CapturingGroup = group;
}
else if (expr is BalancingGroup)
{
((BalancingGroup)expr).Balance = group;
}
}
}
private void ResolveReferences()
{
int num = 1;
Hashtable hashtable = new Hashtable();
ArrayList arrayList = null;
foreach (CapturingGroup cap in caps)
{
if (cap.Name == null)
{
hashtable.Add(num.ToString(), cap);
cap.Index = num++;
num_groups++;
}
}
foreach (CapturingGroup cap2 in caps)
{
if (cap2.Name != null)
{
if (hashtable.Contains(cap2.Name))
{
CapturingGroup capturingGroup3 = (CapturingGroup)hashtable[cap2.Name];
cap2.Index = capturingGroup3.Index;
if (cap2.Index == num)
{
num++;
}
else if (cap2.Index > num)
{
arrayList.Add(cap2);
}
}
else
{
if (char.IsDigit(cap2.Name[0]))
{
int num3 = 0;
int num4 = ParseDecimal(cap2.Name, ref num3);
if (num3 == cap2.Name.Length)
{
cap2.Index = num4;
hashtable.Add(cap2.Name, cap2);
num_groups++;
if (num4 == num)
{
num++;
}
else
{
if (arrayList == null)
{
arrayList = new ArrayList(4);
}
arrayList.Add(cap2);
}
continue;
}
}
string key = num.ToString();
while (hashtable.Contains(key))
{
int num5 = ++num;
key = num5.ToString();
}
hashtable.Add(key, cap2);
hashtable.Add(cap2.Name, cap2);
cap2.Index = num++;
num_groups++;
}
}
}
gap = num;
if (arrayList != null)
{
HandleExplicitNumericGroups(arrayList);
}
foreach (Expression key2 in refs.Keys)
{
string text = (string)refs[key2];
if (!hashtable.Contains(text))
{
if (!(key2 is CaptureAssertion) || char.IsDigit(text[0]))
{
BackslashNumber backslashNumber = key2 as BackslashNumber;
if (backslashNumber == null || !backslashNumber.ResolveReference(text, hashtable))
{
throw NewParseException("Reference to undefined group " + ((!char.IsDigit(text[0])) ? "name " : "number ") + text);
}
}
}
else
{
CapturingGroup capturingGroup4 = (CapturingGroup)hashtable[text];
if (key2 is Reference)
{
((Reference)key2).CapturingGroup = capturingGroup4;
}
else if (key2 is CaptureAssertion)
{
((CaptureAssertion)key2).CapturingGroup = capturingGroup4;
}
else if (key2 is BalancingGroup)
{
((BalancingGroup)key2).Balance = capturingGroup4;
}
}
}
}