Difference between revisions of "Like"
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You can, for example, loop through a list, passing it extracted values from the list and the mask, and it will let you pull out items from the list which are a valid match according to the mask criteria you specified. | You can, for example, loop through a list, passing it extracted values from the list and the mask, and it will let you pull out items from the list which are a valid match according to the mask criteria you specified. | ||
|examples= | |examples= | ||
< | <source lang="lsl2">like("Susie", "Sus%"); //will return true, for any value starting with "Sus" | ||
like("Susie", "%Sus%"); //will return true, for any value containing "Sus" | like("Susie", "%Sus%"); //will return true, for any value containing "Sus" | ||
like("Susie", "%Sus"); //will return false. This example is looking for a string ending in "Sus". | like("Susie", "%Sus"); //will return false. This example is looking for a string ending in "Sus". | ||
like("Susie", "Sus"); //will return false. This example is looking for a string matching only "Sus" exactly.</ | like("Susie", "Sus"); //will return false. This example is looking for a string matching only "Sus" exactly.</source> | ||
|spec=< | |spec=<source lang="lsl2">integer like(string value, string mask) { | ||
integer tmpy = (llGetSubString(mask, 0, 0) == "%") | | integer tmpy = (llGetSubString(mask, 0, 0) == "%") | | ||
((llGetSubString(mask, -1, -1) == "%") << 1); | ((llGetSubString(mask, -1, -1) == "%") << 1); | ||
| Line 29: | Line 29: | ||
} | } | ||
return FALSE; | return FALSE; | ||
}</ | }</source> | ||
|helpers | |helpers | ||
|also_functions | |also_functions | ||
Latest revision as of 15:27, 24 January 2015
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Summary
Function: integer like( string value, string mask );
See if one word matches part of another.
Returns an integer that is TRUE if value tested positive for mask, otherwise it is FALSE.
| • string | value | |||
| • string | mask |
You can, for example, loop through a list, passing it extracted values from the list and the mask, and it will let you pull out items from the list which are a valid match according to the mask criteria you specified.
Specification
integer like(string value, string mask) {
integer tmpy = (llGetSubString(mask, 0, 0) == "%") |
((llGetSubString(mask, -1, -1) == "%") << 1);
if(tmpy)
mask = llDeleteSubString(mask, (tmpy / -2), -(tmpy == 2));
integer tmpx = llSubStringIndex(value, mask);
if(~tmpx) {
integer diff = llStringLength(value) - llStringLength(mask);
return ((!tmpy && !diff)
|| ((tmpy == 1) && (tmpx == diff))
|| ((tmpy == 2) && !tmpx)
|| (tmpy == 3));
}
return FALSE;
}
Examples
like("Susie", "Sus%"); //will return true, for any value starting with "Sus"
like("Susie", "%Sus%"); //will return true, for any value containing "Sus"
like("Susie", "%Sus"); //will return false. This example is looking for a string ending in "Sus".
like("Susie", "Sus"); //will return false. This example is looking for a string matching only "Sus" exactly.
Deep Notes
Source
Posted here with the kind permission of Very Keynes. Originally posted February 2008 at http://forums-archive.secondlife.com/54/c9/243445/1.html .
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