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[Valid_SSN]

LinkValid_SSN
AuthorChris Corwin
CategoryUtility
Version8.x
Licensehttp://opensource.org/licenses/bsd-license.php
Posted16 Nov 2005
Updated16 Jan 2006
More by this author...

Description

Returns (true|false) depending upon whether the input is valid or not. Has an optional -Strict parameter.

Sample Usage

[//lasso

	local: 'somestrings' = 
			(:
				'(317) 418-1795',
				'102-24-1879',
				'102241879',
				)
		;
	iterate(#somestrings, local('a_string'));
			'

'; 'Input'; ''#a_string''; '' Valid_SSN(#a_string, -Strict) ''; 'strict'; '

'; '

'; 'Input'; ''#a_string''; '' Valid_SSN(#a_string) ''; '

'; /iterate; ]

Source Code

Click the "Download" button below to retrieve a copy of this tag, including the complete documentation and sample usage shown on this page. Place the downloaded ".inc" file in your LassoStartup folder, restart Lasso, and you can begin using this tag immediately.

[//lasso
	define_tag(
		'SSN', 
		-namespace='Valid_',
		-priority='replace',
		-description='Returns (true|false) depending upon whether the input is valid or not. Has an optional -Strict parameter.',
		-Required='Input'
		);
			fail_if(
				!params->size,
				-1,
				'[Valid_SSN] requires a requires at least one parameter.'
			);
			
			local(
				'a_number' = string(#Input),
				'regex_Loose' = '^\\d{3}[\\-]*\\d{2}[\\-]*\\d{4}$',
				'regex_Strict' = '^\\d{3}\\-\\d{2}\\-\\d{4}$'
				);
			if: (params) >> -Strict;
					Local: 'a_regex' = @#regex_strict;
			else;
					Local: 'a_regex' = @#regex_loose;
			/if;
			return(boolean(string_FindRegExp( #a_number, -Find=#a_regex)->size));
	/define_tag;

]

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