Checking to see if a string is a hex code?

[M]

Is there any way to see if a string is a valid hex code, ie. contains only 0-9 A-F? It's not really something that bears a great deal of explanation.

RE-loving-ZOLVED.

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[NiXiLL]

Loop all the characters in a string and check if they are 0-9/A-F?

Sec, whipping up a small example.

-EDIT-
Ok here it is.

Code: [Select]

function checkHex(%str)
{
%cnt=strLen(%str);
for(%i=0;%i<%cnt;%i++)
{
%sub=getSubStr(%str,%i,1);
if(!isInCharList(%sub,"0 1 2 3 4 5 6 7 8 9 A B C D E F"))
{
return 0;
}
}
return 1;
}

function isInCharList(%char,%list)
{
%cnt=getWordCount(%list);
for(%i=0;%i<%cnt;%i++)
{
if(%char$=getWord(%list,%i))
{
return 1;
}
}
return 0;
}

Usage example:

Code: [Select]

checkHex("51FYD"); //returns 0
checkHex("63AF"); //returns 1