private void TextBoxPhonetic_TextChanged(object sender, EventArgs e)
{
if (textBoxPhonetic.Modified && textBoxPhonetic.SelectionStart > 0)
{
var cursorPosition = textBoxPhonetic.SelectionStart;
var newChar = textBoxPhonetic.Text[cursorPosition - 1];
var result = editor.PutNewChar(newChar, cursorPosition);
if (result.replaceLength > 0)
{
var replaceStartPosition = cursorPosition - result.replaceLength;
textBoxPhonetic.Text = textBoxPhonetic.Text
.Remove(replaceStartPosition, result.replaceLength)
.Insert(replaceStartPosition, result.output);
textBoxPhonetic.Select(replaceStartPosition + result.output.Length, 0);
}
}
}
private void Test1()
{
editor.Reset();
editor.PutNewChar('k', 1);
editor.PutNewChar('o', 2);
editor.PutNewChar('r', 2);
var result = editor.PutNewChar('r', 3);
Assert.Equal(expected: "করর", result.output);
result = editor.PutNewChar('m', 4);
Assert.Equal(expected: "কর্ম", result.output);
result = editor.PutNewChar(' ');
Assert.Null(result.output);
}