[lp_string_firstwords]
| Link | lp_string_firstwords |
| Author | Bil Corry |
| Category | String |
| Version | 8.x |
| License | Public Domain |
| Posted | 03 Dec 2005 |
| Updated | 19 Mar 2008 |
| More by this author... | |
Description
Returns the first series of words in a string, up to a max length.
Sample Usage
// test vector adapted from Jason Huck: http://devblog.jasonhuck.com/2007/10/02/smart-string-truncation-in-lasso/
'';
var('str' = 'The quick, brown-fox jumps over it\'s "lazy" dog.');
loop($str->size + 10);
loop_count + ' - ' + lp_string_firstwords($str, loop_count) + '\n';
/loop;
'';
Source Code
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[
define_tag('lp_string_firstwords',
-description='Returns the first series of words in a string, up to a max length.',
-priority='replace',
-required='string',
-required='max_length',
-optional='delimiter'); // default is any non-alphanumeric character
!local_defined('delimiter') ? local('delimiter' = '(?:$|\\W)+');
local('result' = string_findregexp(#string, -find='(?is)(^.{1,'+#max_length+'})'+#delimiter));
if(#result->size == 2);
return(#result->get(2));
/if;
return(''); // empty string when no words are found
/define_tag;
]
Workaround for PCRE issues