Updated November 2025
xcall CGIUTL, CGIOP_UNESCAPE, in, out, status
Opcode 9, CGIOP_UNESCAPE, is a utility function—not limited to CGI programs—used to convert URI-encoded (or percent-encoded) strings to the ASCII equivalent. This type of encoding is primarily used for URLs and URIs (e.g. web addresses) and consists of replacing certain special characters (primarily "!#$&'()*+,/:;=?@[] ") with %xx where xx is the hex value of the original ASCII byte code. Although those are typically the only characters encoded this way in URI's, the function converts all %xx sequences to the equivalent raw ASCII characters. In addition, it will convert any "+" appearing after an initial "?" to a space (since query parameters appended to URLs start with "?" and usually replace any spaces with "+".
Parameters
in (String) [in]
URI-encoded string to unescape
out (String) [out]
receives the output , dynamic string ok
status (Num) [out]
returns a status code (0 for ok)
See Also
