🚀 go-pugleaf

Witam,
Mam trzy zgrzyty związane z XML:
1) "The characters to be escaped are the control characters #x0 to #x1F and 
#x7F (most of which cannot appear in XML), space #x20, the delimiters 
'<'#x3C, '>' #x3E and '"' #x22, the unwise characters '{' #x7B, '}' #x7D, 
'|'#x7C, '\' #x5C, '^' #x5E and '`' #x60, as well as all characters above 
#x7F."

Może wiecie, jak tłumaczy się unwise characters? Nie mogę wygooglać :-/// Po 
prostu znaki specjalne?

2) "Following the characteristics defined in the Unicode standard, 
characters are classed as base characters (among others, these contain the 
alphabetic characters of the Latin alphabet), ideographic characters, and 
combining characters (among others, this class contains most diacritics).
Digits and extenders are also distinguished."

Jak po polsku nazywają się extenders?

3) "More formally: a finite state automaton may be constructed from the 
content model using the standard algorithms, e.g. algorithm 3.5 in section 
3.9 of Aho, Sethi, and Ullman [Aho/Ullman]. In many such algorithms, a 
follow set is constructed for each position in the regular expression (i.e., 
each leaf node in the syntax tree for the regular expression); if any 
position has a follow set in which more than one following position is 
labeled with the same element type name, then the content model is in error 
and may be reported as an error."

Na zbiorach i automatach słabo się znam :-(. Bardzo proszę o pomoc w 
przetłumaczeniu tego fragmentu od drugiego zdania.

Serdecznie dziękuję za pomoc.
Pozdrr.,
Boa.