public virtual void generateSwitch(string[] pairs, string default_value)
{
int N = pairs.Length / 2;
Pair[] id_pairs = new Pair[N];
for (int i = 0; i != N; ++i)
{
id_pairs[i] = new Pair(pairs[2 * i], pairs[2 * i + 1]);
}
generateSwitch(id_pairs, default_value);
}
public virtual void generateSwitch(Pair[] pairs, string default_value)
{
int begin = 0;
int end = pairs.Length;
if (begin == end)
{
return ;
}
this.pairs = pairs;
this.default_value = default_value;
generate_body(begin, end, 2);
}
public ArrayList Read(string fileName) {
ArrayList pairGroups = new ArrayList();
string content = string.Empty;
using (StreamReader sr = new StreamReader(fileName)) {
content = sr.ReadToEnd();
}
foreach (Match match in RegExpRegion.Matches(content)) {
PairGroup pg = new PairGroup();
pg.Type = match.Groups[1].Value;
foreach (Match mPair in RegExpPair.Matches(match.Groups[2].Value)) {
string id = mPair.Groups[1].Value;
Pair pair = new Pair (id, id.Substring (3));
switch (pair.Value) {
case "STAR": pair.Value = "$*"; break;
case "UNDERSCORE": pair.Value = "$_"; break;
case "AMPERSAND": pair.Value = "$&"; break;
case "PLUS": pair.Value = "$+"; break;
case "BACKQUOTE": pair.Value = "$`"; break;
case "QUOTE": pair.Value = "$'"; break;
case "DOLLAR_0": pair.Value = "$0"; break;
case "DOLLAR_1": pair.Value = "$1"; break;
case "DOLLAR_2": pair.Value = "$2"; break;
case "DOLLAR_3": pair.Value = "$3"; break;
case "DOLLAR_4": pair.Value = "$4"; break;
case "DOLLAR_5": pair.Value = "$5"; break;
case "DOLLAR_6": pair.Value = "$6"; break;
case "DOLLAR_7": pair.Value = "$7"; break;
case "DOLLAR_8": pair.Value = "$8"; break;
case "DOLLAR_9": pair.Value = "$9"; break;
}
pg.Pairs.Add(pair);
}
pairGroups.Add(pg);
if (pg.Pairs.Count == 0) {
Console.WriteLine("WARN: Found PairGroup (" + pg.Type + ") but no pairs.");
}
}
return pairGroups;
}
private static void heapify4(Pair[] array, int offset, int size, int i, int comparator)
{
int new_i1, new_i2, new_i3;
Pair i_val = array[offset + i];
for (; ; )
{
int base_Renamed = (i << 2);
new_i1 = base_Renamed | 1;
new_i2 = base_Renamed | 2;
new_i3 = base_Renamed | 3;
int new_i4 = base_Renamed + 4;
if (new_i4 >= size)
{
break;
}
Pair val1 = array[offset + new_i1];
Pair val2 = array[offset + new_i2];
Pair val3 = array[offset + new_i3];
Pair val4 = array[offset + new_i4];
if (bigger(val2, val1, comparator))
{
val1 = val2; new_i1 = new_i2;
}
if (bigger(val4, val3, comparator))
{
val3 = val4; new_i3 = new_i4;
}
if (bigger(val3, val1, comparator))
{
val1 = val3; new_i1 = new_i3;
}
if (bigger(i_val, val1, comparator))
{
return ;
}
array[offset + i] = val1;
array[offset + new_i1] = i_val;
i = new_i1;
}
if (new_i1 < size)
{
Pair val1 = array[offset + new_i1];
if (new_i2 != size)
{
Pair val2 = array[offset + new_i2];
if (bigger(val2, val1, comparator))
{
val1 = val2; new_i1 = new_i2;
}
if (new_i3 != size)
{
Pair val3 = array[offset + new_i3];
if (bigger(val3, val1, comparator))
{
val1 = val3; new_i1 = new_i3;
}
}
}
if (bigger(val1, i_val, comparator))
{
array[offset + i] = val1;
array[offset + new_i1] = i_val;
}
}
}
private static void makeHeap4(Pair[] array, int offset, int size, int comparator)
{
for (int i = ((size + 2) >> 2); i != 0; )
{
--i;
heapify4(array, offset, size, i, comparator);
}
}
private static void heap4Sort(Pair[] array, int offset, int size, int comparator)
{
if (size <= 1)
{
return ;
}
makeHeap4(array, offset, size, comparator);
while (size > 1)
{
--size;
Pair v1 = array[offset + size];
Pair v2 = array[offset + 0];
array[offset + size] = v2;
array[offset + 0] = v1;
heapify4(array, offset, size, 0, comparator);
}
}
private static bool bigger(Pair a, Pair b, int comparator)
{
if (comparator < 0)
{
// For length selection switch it is enough to compare just length,
// but to detect same strings full comparison is essential
//return a.Id.Length > b.Id.Length;
int diff = a.Value.Length - b.Value.Length;
if (diff != 0)
{
return diff > 0;
}
return String.CompareOrdinal(a.Value, b.Value) > 0;
}
else
{
return a.Value[comparator] > b.Value[comparator];
}
}