RosettaCodeData/Task/URL-decoding/Tcl/url-decoding-1.tcl

8 lines
314 B
Tcl

proc urlDecode {str} {
set specialMap {"[" "%5B" "]" "%5D"}
set seqRE {%([0-9a-fA-F]{2})}
set replacement {[format "%c" [scan "\1" "%2x"]]}
set modStr [regsub -all $seqRE [string map $specialMap $str] $replacement]
return [encoding convertfrom utf-8 [subst -nobackslash -novariable $modStr]]
}