validating-a-url.rex

Pipelines v2.1

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 1
 2 /* The following pipeline is an example of a script which validates a URL.
 3  The locate stage employs a simple regular expression which it applies against each
 4  input record; to validate the specified address. */
 5
 6 Address Rxpipe
 7
 8 'pipe (endchar ? escape % regex 3 stagesep |)',
 9 'literal \http://www.1052.co.uk/pipelines/\',
 10 '| lit \http: //pipelines.co.uk/\',
 11 '| lit \https://www.microsoft.com\',
 12 '| a: locate reg "^(http)(s%?)\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)%?$"',
 13 '| specs /Valid URL:/ 1 1-* nw',
 14 '| console',
 15 '?',
 16 'a:',
 17 '| specs /Invalid URL:/ 1 1-* nw',
 18 '| console'
 19
 20 Say 'Hit Enter to close..'
 21 Parse Pull
 22
 23 Exit 0
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