public void WrapEditableCharacters_DoubleWidthCharacters_UsesStringWidth()
{
var text = "每个人都有他的作战策略，直到脸上中了一拳。";
var wrapped = WordWrapping.WrapEditableCharacters(new StringBuilder(text), caret: 13, width: 20);
Assert.Equal(
new[]
{
new WrappedLine(0, "每个人都有他的作战策"),
new WrappedLine(10, "略，直到脸上中了一拳"),
new WrappedLine(20, "。"),
},
wrapped.WrappedLines
);
Assert.Equal(new ConsoleCoordinate(1, 3), wrapped.Cursor);
}
public void WrapEditableCharacters_DoubleWidthCharactersWithWrappingInMiddleOfCharacter_WrapsCharacter()
{
var text = "每个人都有他的作战策略， 直到脸上中了一拳。";
var wrapped = WordWrapping.WrapEditableCharacters(new StringBuilder(text), caret: 19, width: 19);
Assert.Equal(
new[]
{
new WrappedLine(0, "每个人都有他的作战"), // case 1: we should wrap early, because the next character is a full-width (2-wide) character.
new WrappedLine(9, "策略， 直到脸上中了"), // case 2: single width space ("normal" space) sets us to align to width 19 exactly.
new WrappedLine(19, "一拳。")
},
wrapped.WrappedLines
);
Assert.Equal(new ConsoleCoordinate(2, 0), wrapped.Cursor);
}
public void WrapEditableCharacters_GivenLongText_WrapsCharacters()
{
var text = "Here is some text that should be wrapped character by character";
var wrapped = WordWrapping.WrapEditableCharacters(new StringBuilder(text), text.Length - 5, 20);
Assert.Equal(
new[]
{
new WrappedLine(0, "Here is some text th"),
new WrappedLine(20, "at should be wrapped"),
new WrappedLine(40, " character by charac"),
new WrappedLine(60, "ter"),
},
wrapped.WrappedLines
);
Assert.Equal(new ConsoleCoordinate(2, 18), wrapped.Cursor);
}
/// <summary>
/// This is just an extra function used by <see cref="Prompt.RenderAnsiOutput"/> that highlights arbitrary text. It's
/// not used for drawing input during normal functioning of the prompt.
/// </summary>
public static Row[] ApplyColorToCharacters(IReadOnlyCollection <FormatSpan> highlights, string text, int textWidth)
{
var wrapped = WordWrapping.WrapEditableCharacters(new StringBuilder(text), 0, textWidth);
return(ApplyColorToCharacters(highlights, wrapped.WrappedLines, selection: null, selectedTextBackground: null));
}
