Added the start of varicode

2018-07-11 23:09:22 -04:00
parent 564b93f307
commit c96522c11b
4 changed files with 44 additions and 2 deletions
@@ -0,0 +1,24 @@
+#include "varicode.h"
+
+QString alphabet = {"0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ+-./?"};
+
+qint16 Varicode::unpack16bits(QString const& triple){
+    int a = alphabet.indexOf(triple.at(0));
+    int b = alphabet.indexOf(triple.at(1));
+    int c = alphabet.indexOf(triple.at(2));
+    return (41*41) * a + 41*b + c;
+}
+
+QString Varicode::pack16bits(qint16 packed){
+    QString out;
+    qint16 tmp = packed / (41*41);
+    out.append(alphabet.at(tmp));
+
+    tmp = (packed - (tmp * (41*41))) / 41;
+    out.append(alphabet.at(tmp));
+
+    tmp = packed % 41;
+    out.append(alphabet.at(tmp));
+
+    return out;
+}