UnitCreateMultiple

// UnitCreateMultiple creates units of multiple types and quantities and returns a unitgroup containing
// the created units. The format for the unitTypes parameter string is:
// "unittype,quantity unittype,quantity" assuming the default controlChar is ","
// An example of use is:
// "Marine,5 Zealot,3 DudeBro,1"
unitgroup UnitCreateMultiple (string unitTypes, int createStyle, int player, point position, fixed face)
{
    string controlChar = ",";
    string space = " ";
    unitgroup g = UnitGroupEmpty();
    int i = 1;
    string word = StringWord(unitTypes,i);
    while (word != null)
    {
        // replace the word's controlChar with a space
        word = StringReplaceWord(word,controlChar,space,c_stringReplaceAll,false);
        // Create units and add them to the unitgroup g
        UnitGroupAddUnitGroup(g,UnitCreate(StringToInt(StringWord(word,2)),StringWord(word,1),createStyle,player,position,face));
        // increment i and set the next word
        i+=1;
        word = StringWord(unitTypes,i);
    }
    return g;
}