I didn't know about the function but from what I understand from the
"show function FILTER" output it doesn't validate a string but it
cleans the string from not allowed characters. So
TRIM(1234567890,01243567&505) results in 01243567505. If the length
of the output string is shorter then the input string the call setup
should stop because not allowed characters were stripped. With some
extra lines TRIM() will do as good as the macro I guess. You can add
some lines so someone trying to perform number injection will be
connected with an answering machine and be requested to leave name
and phone number ;-)
Erik
On 17 feb 2010, at 00:41, Warren Selby wrote:
On Tue, Feb 16, 2010 at 4:38 PM, meetmecall <[email protected]>
wrote:
Doesn't the built-in function FILTER() already do this?
*CLI> core show function FILTER
*CLI>
-= Info about function 'FILTER' =-
[Synopsis]
Filter the string to include only the allowed characters
[Description]
Permits all characters listed in <allowed-chars>, filtering all
others outs.
In addition to literally listing the characters, you may also use
ranges
of characters (delimited by a '-'
Hexadecimal characters started with a '\x'(i.e. \x20)
Octal characters started with a '\0' (i.e. \040)
Also '\t','\n' and '\r' are recognized.
NOTE: If you want the '-' character it needs to be prefixed with a
'\'
[Syntax]
FILTER(allowed-chars,string)
[Arguments]
Not available
[See Also]
Not available
--
Thanks,
--Warren Selby
http://www.selbytech.com
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