// Loop through characters in a string and split them into sequential tokens
// eg. "Cake 01. ヴァンパイア雪降る夜"
// => ["Cake 01. ", "ヴァンパイア", "雪降る夜"]
public List <TextToken> GetTextTokens(string inText)
{
var textTokens = new List <TextToken>();
// Start with arbitrary token type
var prevCharTokenType = TokenType.Latin;
var currCharTokenType = prevCharTokenType;
var currToken = new TextToken(currCharTokenType);
foreach (var c in inText)
{
var cs = c.ToString();
if (Unicode.IsProlongedChar(c))
{
currCharTokenType = prevCharTokenType;
}
else if (Unicode.IsHiragana(cs) || Unicode.IsKanji(cs))
{
currCharTokenType = TokenType.HiraganaKanji;
}
else if (Unicode.IsKatakana(cs))
{
currCharTokenType = TokenType.Katakana;
}
else
{
currCharTokenType = TokenType.Latin;
}
// Check if there is a new token
if (prevCharTokenType == currCharTokenType)
{
// Same token
currToken.Text += cs;
}
else
{
// New token
// Modifies the prefix of the token depending on prev/curr tokens
// eg. Add space before curr token
var tokenPrefix = "";
if (!string.IsNullOrEmpty(currToken.Text))
{
// Add token to token list if there is text in it
textTokens.Add(currToken);
// Get token prefix for new token if previous token was not empty
if (textTokens.Count > 0)
{
var prevLastChar = textTokens.Last().Text.Last();
tokenPrefix = GetTokenPrefix(prevCharTokenType,
currCharTokenType,
prevLastChar, c);
}
}
// Create new token
currToken = new TextToken(currCharTokenType, cs, tokenPrefix);
prevCharTokenType = currCharTokenType;
}
}
// Add last token to the list
if (!string.IsNullOrEmpty(currToken.Text))
{
textTokens.Add(currToken);
}
return(textTokens);
}
public bool IsTranslated(string text)
{
return(!text.Any(c => Unicode.IsJapanese(c.ToString())));
}