with Ada.Strings.Fixed;
with Ada.Text_IO;

-- See also StringInsertSpaces

procedure StringInsert is
  s : String(1..1) := (others => ' ');
begin
  for c in Character'Range loop
    begin
      s(1) := c;
      Ada.Strings.Fixed.Insert(s, 1, "x");
      Ada.Text_IO.Put_line(Character'Image(c)&" is considered unimportant");
    exception
      when Ada.Strings.Length_Error =>
        Ada.Text_IO.Put_line(Character'Image(c)&" is considered important");
    end;

  end loop;
end StringInsert;

-- Output:
--
-- NUL is considered important
-- SOH is considered important
-- STX is considered important
-- ETX is considered important
-- EOT is considered important
-- ENQ is considered important
-- ACK is considered important
-- BEL is considered important
-- BS is considered important
-- HT is considered important
-- LF is considered important
-- VT is considered important
-- FF is considered important
-- CR is considered important
-- SO is considered important
-- SI is considered important
-- DLE is considered important
-- DC1 is considered important
-- DC2 is considered important
-- DC3 is considered important
-- DC4 is considered important
-- NAK is considered important
-- SYN is considered important
-- ETB is considered important
-- CAN is considered important
-- EM is considered important
-- SUB is considered important
-- ESC is considered important
-- FS is considered important
-- GS is considered important
-- RS is considered important
-- US is considered important
-- ' ' is considered unimportant
-- '!' is considered important
-- '"' is considered important
-- '#' is considered important
-- '$' is considered important
-- '%' is considered important
-- '&' is considered important
-- ''' is considered important
-- '(' is considered important
-- ')' is considered important
-- '*' is considered important
-- '+' is considered important
-- ',' is considered important
-- '-' is considered important
-- '.' is considered important
-- '/' is considered important
-- '0' is considered important
-- '1' is considered important
-- '2' is considered important
-- '3' is considered important
-- '4' is considered important
-- '5' is considered important
-- '6' is considered important
-- '7' is considered important
-- '8' is considered important
-- '9' is considered important
-- ':' is considered important
-- ';' is considered important
-- '<' is considered important
-- '=' is considered important
-- '>' is considered important
-- '?' is considered important
-- '@' is considered important
-- 'A' is considered important
-- 'B' is considered important
-- 'C' is considered important
-- 'D' is considered important
-- 'E' is considered important
-- 'F' is considered important
-- 'G' is considered important
-- 'H' is considered important
-- 'I' is considered important
-- 'J' is considered important
-- 'K' is considered important
-- 'L' is considered important
-- 'M' is considered important
-- 'N' is considered important
-- 'O' is considered important
-- 'P' is considered important
-- 'Q' is considered important
-- 'R' is considered important
-- 'S' is considered important
-- 'T' is considered important
-- 'U' is considered important
-- 'V' is considered important
-- 'W' is considered important
-- 'X' is considered important
-- 'Y' is considered important
-- 'Z' is considered important
-- '[' is considered important
-- '\' is considered important
-- ']' is considered important
-- '^' is considered important
-- '_' is considered important
-- '`' is considered important
-- 'a' is considered important
-- 'b' is considered important
-- 'c' is considered important
-- 'd' is considered important
-- 'e' is considered important
-- 'f' is considered important
-- 'g' is considered important
-- 'h' is considered important
-- 'i' is considered important
-- 'j' is considered important
-- 'k' is considered important
-- 'l' is considered important
-- 'm' is considered important
-- 'n' is considered important
-- 'o' is considered important
-- 'p' is considered important
-- 'q' is considered important
-- 'r' is considered important
-- 's' is considered important
-- 't' is considered important
-- 'u' is considered important
-- 'v' is considered important
-- 'w' is considered important
-- 'x' is considered important
-- 'y' is considered important
-- 'z' is considered important
-- '{' is considered important
-- '|' is considered important
-- '}' is considered important
-- '~' is considered important
-- DEL is considered important
-- RESERVED_128 is considered important
-- RESERVED_129 is considered important
-- BPH is considered important
-- NBH is considered important
-- RESERVED_132 is considered important
-- NEL is considered important
-- SSA is considered important
-- ESA is considered important
-- HTS is considered important
-- HTJ is considered important
-- VTS is considered important
-- PLD is considered important
-- PLU is considered important
-- RI is considered important
-- SS2 is considered important
-- SS3 is considered important
-- DCS is considered important
-- PU1 is considered important
-- PU2 is considered important
-- STS is considered important
-- CCH is considered important
-- MW is considered important
-- SPA is considered important
-- EPA is considered important
-- SOS is considered important
-- RESERVED_153 is considered important
-- SCI is considered important
-- CSI is considered important
-- ST is considered important
-- OSC is considered important
-- PM is considered important
-- APC is considered important
-- ' ' is considered important
-- '¡' is considered important
-- '¢' is considered important
-- '£' is considered important
-- '¤' is considered important
-- '¥' is considered important
-- '¦' is considered important
-- '§' is considered important
-- '¨' is considered important
-- '©' is considered important
-- 'ª' is considered important
-- '«' is considered important
-- '¬' is considered important
-- '­' is considered important
-- '®' is considered important
-- '¯' is considered important
-- '°' is considered important
-- '±' is considered important
-- '²' is considered important
-- '³' is considered important
-- '´' is considered important
-- 'µ' is considered important
-- '¶' is considered important
-- '·' is considered important
-- '¸' is considered important
-- '¹' is considered important
-- 'º' is considered important
-- '»' is considered important
-- '¼' is considered important
-- '½' is considered important
-- '¾' is considered important
-- '¿' is considered important
-- 'À' is considered important
-- 'Á' is considered important
-- 'Â' is considered important
-- 'Ã' is considered important
-- 'Ä' is considered important
-- 'Å' is considered important
-- 'Æ' is considered important
-- 'Ç' is considered important
-- 'È' is considered important
-- 'É' is considered important
-- 'Ê' is considered important
-- 'Ë' is considered important
-- 'Ì' is considered important
-- 'Í' is considered important
-- 'Î' is considered important
-- 'Ï' is considered important
-- 'Ð' is considered important
-- 'Ñ' is considered important
-- 'Ò' is considered important
-- 'Ó' is considered important
-- 'Ô' is considered important
-- 'Õ' is considered important
-- 'Ö' is considered important
-- '×' is considered important
-- 'Ø' is considered important
-- 'Ù' is considered important
-- 'Ú' is considered important
-- 'Û' is considered important
-- 'Ü' is considered important
-- 'Ý' is considered important
-- 'Þ' is considered important
-- 'ß' is considered important
-- 'à' is considered important
-- 'á' is considered important
-- 'â' is considered important
-- 'ã' is considered important
-- 'ä' is considered important
-- 'å' is considered important
-- 'æ' is considered important
-- 'ç' is considered important
-- 'è' is considered important
-- 'é' is considered important
-- 'ê' is considered important
-- 'ë' is considered important
-- 'ì' is considered important
-- 'í' is considered important
-- 'î' is considered important
-- 'ï' is considered important
-- 'ð' is considered important
-- 'ñ' is considered important
-- 'ò' is considered important
-- 'ó' is considered important
-- 'ô' is considered important
-- 'õ' is considered important
-- 'ö' is considered important
-- '÷' is considered important
-- 'ø' is considered important
-- 'ù' is considered important
-- 'ú' is considered important
-- 'û' is considered important
-- 'ü' is considered important
-- 'ý' is considered important
-- 'þ' is considered important
-- 'ÿ' is considered important