Empty Signs List - AFS

AFS Empty Sign List

Product
AFS
AFS_Version
7.7
Category
Technical Notes

The following signs are automatically tagged as ‘empty words’ while parsing user queries.

List of empty signs

*

'

-

_

|

.

,

;

°

#

~

=

+

/

\

any lexem made of a single, non-alphanumeric character, not used as an operator, i.e. not '+','-', '|', '(', ')'

examples: '@','$' and '%'

In any case empty signs are indexed (in the same way that all empty words are indexed), the index has no knowledge of empty words and "stores everything". Their tagging is done at query time. If this list changes, then no reprocessing is required.