// Turns the ustring into runes, this does not split the
// contents on a newline if it is present.
internal static List<Rune> ToRunes (ustring str)
{
List<Rune> runes = new List<Rune> ();
foreach (var x in str.ToRunes ()) {
runes.Add (x);
}
return runes;
}
static ustring StripCRLF(ustring str)
{
var runes = new List <Rune> ();
foreach (var r in str.ToRunes())
{
if (r != '\r' && r != '\n')
{
runes.Add(r);
}
}
return(ustring.Make(runes));;
}
static ustring ClipAndJustify(ustring str, int width, TextAlignment talign)
{
// Get rid of any '\r' added by Windows
str = str.Replace("\r", ustring.Empty);
int slen = str.RuneCount;
if (slen > width)
{
var uints = str.ToRunes(width);
var runes = new Rune [uints.Length];
for (int i = 0; i < uints.Length; i++)
{
runes [i] = uints [i];
}
return(ustring.Make(runes));
}
else
{
if (talign == TextAlignment.Justified)
{
// TODO: ustring needs this
var words = str.ToString().Split(whitespace, StringSplitOptions.RemoveEmptyEntries);
int textCount = words.Sum(arg => arg.Length);
var spaces = (width - textCount) / (words.Length - 1);
var extras = (width - textCount) % words.Length;
var s = new System.Text.StringBuilder();
//s.Append ($"tc={textCount} sp={spaces},x={extras} - ");
for (int w = 0; w < words.Length; w++)
{
var x = words [w];
s.Append(x);
if (w + 1 < words.Length)
{
for (int i = 0; i < spaces; i++)
{
s.Append(' ');
}
}
if (extras > 0)
{
//s.Append ('_');
extras--;
}
}
return(ustring.Make(s.ToString()));
}
return(str);
}
}
static ustring ReplaceCRLFWithSpace(ustring str)
{
var runes = new List <Rune> ();
foreach (var r in str.ToRunes())
{
if (r == '\r' || r == '\n')
{
runes.Add(new Rune(' ')); // r + 0x2400)); // U+25A1 □ WHITE SQUARE
}
else
{
runes.Add(r);
}
}
return(ustring.Make(runes));;
}
static ustring ReplaceNonPrintables(ustring str)
{
var runes = new List <Rune> ();
foreach (var r in str.ToRunes())
{
if (r < 0x20)
{
runes.Add(new Rune(r + 0x2400)); // U+25A1 □ WHITE SQUARE
}
else
{
runes.Add(r);
}
}
return(ustring.Make(runes));;
}