How to validate text in install script?

[vasanthakumarmk]

I want to have only string without using special characters in text box. 
How to validate it? How to use Regex in install shield code? 

Regards,

Vasanth

[Jenifer · Accepted solution]

Hi @vasanthakumarmk ,

How about adding function which will get substring of given string character by character and validate based on string operator %.?

pseudo code would be:

prototype IsSpecialChar (string);

function IsSpecialChar (szStuff)

/* Check if a string has special charecter

In: szStuff -- string to test
Out: Returns TRUE or FALSE

*/

#define SPECIAL_CHARS "%$#@*)(+~"
// For my purposes, underscore is considered alphanumeric.
number nPos;
string szChar;

begin
for nPos = 0 to StrLength (szStuff)
StrSub (szChar, szStuff, nPos - 1, 1);
if !(SPECIAL_CHARS % szChar) then
return FALSE;
endif;
endfor;
return TRUE;
end;

Hope it helps,

Thanks,

Jenifer

[vasanthakumarmk]

Thank you so much.... You really great and helped lot.... Its working fine. Cheerssss!!!!!!