static string GenerateOutput(Dictionary <PrefixGroup, List <string> > input, int prefixCount, int wordLimit = 0)
{
var rnd = new Random();
var result = new List <string>();
var index = -prefixCount;
string suffix = null;
do
{
var prefixes = new List <string>();
for (int i = 0; i < prefixCount; i++)
{
if (index + i < 0)
{
prefixes.Add(null);
}
else
{
prefixes.Add(result[index + i]);
}
}
var pGroup = new PrefixGroup(prefixes.ToArray());
List <string> value;
if (input.TryGetValue(pGroup, out value))
{
suffix = value[rnd.Next(value.Count)];
result.Add(suffix);
}
index++;
} while (suffix != null && !(result.Count > wordLimit && wordLimit > 0));
return(string.Join(" ", result.ToArray()));
}
static Dictionary <PrefixGroup, List <string> > ParseInputPairs(string[] input, int prefixCount)
{
var result = new Dictionary <PrefixGroup, List <string> >();
var index = -prefixCount;
string suffix = null;
do
{
suffix = null;
var prefixes = new List <string>();
for (int i = 0; i < prefixCount; i++)
{
if (index + i < 0)
{
prefixes.Add(null);
}
else
{
prefixes.Add(input[index + i]);
}
}
var pGroup = new PrefixGroup(prefixes.ToArray());
List <string> value;
if (prefixCount + index < input.Length)
{
suffix = input[prefixCount + index++];
}
if (result.TryGetValue(pGroup, out value))
{
value.Add(suffix);
}
else
{
var suffixList = new List <string>();
suffixList.Add(suffix);
result.Add(new PrefixGroup(prefixes.ToArray()), suffixList);
}
} while (suffix != null);
return(result);
}