Xbasic
KEYWORDS Function
Syntax
Sorted_List as C = KEYWORDS(C string)
Arguments
- string
A string expression containing words separated by spaces.
Description
Returns a sorted list of all unique words in a string, when used in with index, will generate a keyword index.
Discussion
KEYWORDS() returns a sorted list of all of the unique words in string. This function is typically used to build an index for full text searching. When you build full text indexes on memo fields and other long character fields, Alpha Anywhere can find a word anywhere within long memos and character fields very quickly, using Lightning Query Optimization. Case sensitive.
Example
? keywords("now is the time for all Good Men") = "Good Men all for is now the time" ? keywords("now is the time for for for all Good Men") = "Good Men all for is now the time"' because only unique words are returned. ? keywords("a aa aaa aA aAA aAa AAA AA Aa AAa") = "AA AAA AAa Aa a aA aAA aAa aa aaa"
Limitations
The string argument is case sensitive.
See Also