public System.Collections.Generic.IEnumerable <char> Transcribe(System.Collections.Generic.IEnumerable <char> input)
{
LetterCategory lastCategory = LetterCategory.Whitespace;
System.Collections.Generic.IEnumerator <char> enumerator = input.GetEnumerator();
bool evenInsertVowel = false;
//If we are done, no more elements
if (!enumerator.MoveNext())
{
yield break;
}
bool done = false;
while (!done)
{
char current = enumerator.Current;
//If we are done, no more elements
if (!enumerator.MoveNext())
{
done = true;
}
//If we are at the last element
else if (current == enumerator.Current)
{
done = !enumerator.MoveNext();
}
//Map ck to k
else if (current == 'c' && enumerator.Current == 'k')
{
done = !enumerator.MoveNext();
current = 'k';
}
//Map ch to k if last character was a vowel,
//otherwise map ch to s
else if (current == 'c' && enumerator.Current == 'h')
{
done = !enumerator.MoveNext();
current = lastCategory == LetterCategory.Vowel ? 'k' : 's';
}
current = this.Map(current);
LetterCategory category = this.Categorize(current);
switch (category)
{
//Don't transpose other characters
case LetterCategory.Other:
break;
case LetterCategory.Vowel:
//If vowel, and last category was not a consonant
//add a h before the vowel
if (lastCategory != LetterCategory.Consonant)
{
yield return('h');
}
yield return(current);
break;
case LetterCategory.Consonant:
//If consonant, and the last category was a consonant,
//add a u or i before the consonant
if (lastCategory == LetterCategory.Consonant)
{
yield return((evenInsertVowel = !evenInsertVowel) ? 'u' : 'i');
}
yield return(current);
break;
case LetterCategory.Whitespace:
//If the last character in a word was a consonant,
//add a u or i to the end of that word.
if (lastCategory == LetterCategory.Consonant)
{
yield return(!evenInsertVowel ? 'u' : 'i');
}
evenInsertVowel = false;
if (lastCategory != LetterCategory.Whitespace)
{
yield return(' ');
}
break;
}
if (category != LetterCategory.Other)
{
lastCategory = category;
}
}
if (lastCategory == LetterCategory.Consonant)
{
yield return((evenInsertVowel = !evenInsertVowel) ? 'u' : 'i');
}
}
public System.Collections.Generic.IEnumerable <char> Transcribe(System.Collections.Generic.IEnumerable <char> input)
{
LetterCategory lastCategory = LetterCategory.Whitespace;
char lastCharacter = '\0';
System.Collections.Generic.IEnumerator <char> enumerator = input.GetEnumerator();
bool evenInsertVowel = false;
//If we are done, no more elements
if (!enumerator.MoveNext())
{
yield break;
}
bool done = false;
char current = '\0';
while (!done)
{
lastCharacter = current;
current = enumerator.Current;
//If we are done, no more elements
if (!enumerator.MoveNext())
{
done = true;
}
//If we are at the last element
else if (current == enumerator.Current)
{
done = !enumerator.MoveNext();
}
// //Map ck to k
// else if (current == 'c' && enumerator.Current == 'k')
// {
// done = !enumerator.MoveNext();
// current = 'k';
// }
// //Map ch to k if last character was a vowel,
// //otherwise map ch to s
// else if (current == 'c' && enumerator.Current == 'h')
// {
// done = !enumerator.MoveNext();
// current = lastCategory == LetterCategory.Vowel ? 'k' : 's';
// }
current = this.Map(current);
LetterCategory category = this.Categorize(current);
switch (category)
{
// //Don't transpose other characters
case LetterCategory.Other:
if (current == '_')
{
yield return(current);
}
break;
//case LetterCategory.Vowel:
// //If vowel, and last category was not a consonant
// //add a h before the vowel
// //if (lastCategory != LetterCategory.Consonant)
// // yield return 'h';
// //yield return current;
// break;
//case LetterCategory.Consonant:
// //If consonant, and the last category was a consonant,
// //add a u or i before the consonant
// //if (lastCategory == LetterCategory.Consonant)
// // yield return (evenInsertVowel = !evenInsertVowel) ? 'u' : 'i';
// //yield return current;
// break;
case LetterCategory.Whitespace:
//If the last character in a word was a consonant,
//add a u or i to the end of that word.
//if (lastCategory == LetterCategory.Consonant)
// yield return !evenInsertVowel ? 'u' : 'i';
//evenInsertVowel = false;
if (lastCategory != LetterCategory.Whitespace)
{
switch (lastCharacter)
{
case 'g':
case 'b':
case 'h':
yield return('u');
yield return('r');
break;
case 'f':
case 'p':
case 's':
case 'v':
yield return('i');
yield return('r');
break;
case 'd':
case 'm':
case 'r':
case 't':
yield return('o');
yield return('n');
break;
case 'l':
yield return('r');
break;
}
yield return(' ');
}
break;
default:
//Map ö to oe
if (current == 'ö')
{
yield return('o');
yield return('e');
}
else if (current == 'd')
{
yield return('t');
yield return('h');
}
else
{
yield return(current);
}
break;
}
if (category != LetterCategory.Other)
{
lastCategory = category;
}
}
//if (lastCategory == LetterCategory.Consonant)
// yield return (evenInsertVowel = !evenInsertVowel) ? 'u' : 'i';
}
