Vse pak za interesuvashtite se, polojenieto e takova:

Ctrl simvolite sa "illegal XML characters", tova list na dopustimite simvoli v XML:
Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000 - -#xFFFD] | [#x10000-#x10FFFF]

za poveche info vij http://www.w3.org/TR/REC-xml#charsets

Eto gi i vsichki simvoli po-malki ot #x20:
<pre>
null NUL ^@ 00 &#000;
start of heading SOH ^A 01 &#001;
start of text STX ^B 02 &#002;
end of text ETX ^C 03 &#003;
end of transmission EOT ^D 04 &#004;
enquiry ENQ ^E 05 &#005;
acknowledge ACK ^F 06 &#006;
bell BEL ^G 07 &#007;
backspace BS ^H 08 &#008;
horizontal tab HT ^I 09 &#009;
line feed, new line LF, NL ^J 0A &#010;
vertical tab VT ^K 0B &#011;
form feed, new page FF, NP ^L 0C &#012;
carriage return CR ^M 0D &#013;
shift out SO ^N 0E &#014;
shift in SI ^O 0F &#015;
data link escape DLE ^P 10 &#016;
device control 1 DC1 ^Q 11 &#017;
device control 2 DC2 ^R 12 &#018;
device control 3 DC3 ^S 13 &#019;
device control 4 DC4 ^T 14 &#020;
negative acknowledge NAK ^U 15 &#021;
synchronous idle SYN ^V 16 &#022;
end of trans. block ETB ^W 17 &#023;
cancel CAN ^X 18 &#024;
end of medium EM ^Y 19 &#025;
substitute SUB ^Z 1A &#026;
escape ESC ^[ 1B &#027;
file separator FS ^\ 1C &#028;
group separator GS ^] 1D &#029;
record separator RS ^^ 1E &#030;
unit separator US ^_ 1F &#031;
</pre>
palnata specifikacia mojete da q namerite naprimer tuka:

http://www.bbsinc.com/iso8859.html