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Fix bug #34117, more clear hexdig

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git-svn-id: trunk@39610 -
This commit is contained in:
michael 2018-08-12 09:27:54 +00:00
parent a3f756013d
commit 134b5553c3
1 changed files with 8 additions and 9 deletions
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17
packages/regexpr/src/regexpr.pas
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@ -2105,17 +2105,16 @@ function TRegExpr.ParseAtom (var flagp : integer) : PRegExprChar;
end;
function HexDig (ch : REChar) : PtrInt;
begin
Result := 0;
if (ch >= 'a') and (ch <= 'f')
then ch := REChar (ord (ch) - (ord ('a') - ord ('A')));
if (ch < '0') or (ch > 'F') or ((ch > '9') and (ch < 'A')) then begin
Result := Ord(Ch);
Case Result of
Ord('A')..Ord('F') : Result:=10+Result-Ord('A');
Ord('a')..Ord('f') : Result:=10+Result-Ord('a');
Ord('0')..Ord('9') : Result:=Result-Ord('0');
else
Error (reeBadHexDigit);
EXIT;
end;
Result := ord (ch) - ord ('0');
if ch >= 'A'
then Result := Result - (ord ('A') - ord ('9') - 1);
end;
end;
function EmitRange (AOpCode : REChar) : PRegExprChar;