010308-1 |
A search engine accepts queries using
Boolean conditions containing the operators AND, OR, NOT, NEAR, and
parethesises. Search words can be specified with double apostrophes
(") around them to specify exact match, or any word except upper-case
AND-OR-NOT-NEAR to specify non-exact match. Example:
Apple OR (orange AND NOT (banana OR "Hans Bergman"))Write an ABNF a specification of the allowed syntax for queries to this search engine. |
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Answer |
query = query / ( "(" query ")" )
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