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CGI server side Tcl script

Posted by admin (Graham Ellis), 26 September 2004
Had a couple of questions about server side Tcl scripts running through CGI ... so here's an example.   You can run it through
http://www.wellho.net/cgi-bin/demo/isitnz.tcl

Code:
#!/usr/bin/tcl

set params [split $env(QUERY_STRING) &]
foreach par $params {
   set pair [split $par =]
   set name [lindex $pair 0]
   set value [lindex $pair 1]
   regsub -all \\\+ $value " " value
   regsub -all -nocase {%([0-9a-f][0-9a-f])} $value \
   {[format %c 0x\1]} value
   set form($name) [subst $value]
}
puts {content-type: text/html

<html>
<head><title>This is a Tcl script demo</title></head>
<body bgcolo = white><h1>Tcl Script running through CGI</h1>
<form>Please enter a string in which to look for .co.nz
<input name=haystack><input type=submit></form><br>
}

if {[info exists form(haystack)]}  {
       if {[regexp {\.co\.nz} $form(haystack)]} {
               puts "$form(haystack) contains .co.nz"
       } else {
               puts "Nothing from New Zealand found in $form(haystack)"
       }
} else {
       puts "Your answer will appear here"
}

puts {
<hr>
Example written by <a href=mailto:graham@wellho.net>Graham Ellis </a>
</body></html>
}




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