As posted in this thread: http://www.opto22.com/community/showthread.php?t=304&p=945#post945 , i thought it would be a nice candidate for the competition.
//loop around and check for an invalid character in a string //valid ASCII characters are 0-9, A-Z and a-z //decimal character codes are: 48-57, 65-90 and 97-122 respectively //get the string length to check nStringLength=GetStringLength(sStringToCheck); nInvalidCharFound=0; //set true if we find an invalid char so we can bail asap nIndex=0; //counter so we can loop through nChar=0; //character at nIndex position repeat nChar=GetNthCharacter(sStringToCheck,nIndex); //get the character at index number IncrementVariable(nIndex); //increment the index //check to see if all 3 statements are valid. if the char is not within the limits specified then its invalid. //add more as you see fit, even make the statics variables!! if ( (not(IsWithinLimits(nChar,48,57))) //0-9 and (not(IsWithinLimits(nChar,65,90))) //A-Z and (not(IsWithinLimits(nChar,97,122))) //a-z ) then nInvalidCharFound=nIndex-1; //set the invalidchar variable to the position it was found endif until ((nInvalidCharFound<>0) or (nIndex==nStringLength)); //bail if we get an invalid char found or we have reached the end of the string
does as the code says, parses a string until an invalid character is found. can be hacked to suit accordingly…
Come on iPad!!!