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January 01, 2002

Writing CGI Scripts in REXX (Web Techniques, May 1996)

(Page 20 of 23)

Writing CGI Scripts in REXX, Listing 8 (Web Techniques, May 1996)

Web Techniques Magazine

May 1996

Volume 1, Issue 2





Writing CGI Scripts in REXX 




Listing Eight





/* PrintVariables


Nicely formats the Form variables in the input 


string (which are in the format 


key1=value1&key2=value2&...) and returns them 


in a nicely formatted HTML string.


Example:  


  SAY PrintVariables(GETENV('QUERY_STRING'))


*/


PrintVariables: PROCEDURE; PARSE ARG In


  n='0A'X; /*Newline*/; Out=n||'
'||n


  In=TRANSLATE(In,' ','+')


  DO I=1 BY 1 UNTIL In=''


    /* Split into key and value */


    PARSE VAR In Key.I'='Val.I'&' In


    /* Convert %XX from hex to alphanumeric*/


    Key.I=DeWeb(Key.I); Val.I=DeWeb(Val.I)


    Out=Out'
'Key.I''n,


           '
'Val.I'
'n


  END I


RETURN Out||'
'||n



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