[OASIS Issue Tracker] (ODATA-1283) $search: ABNF comment is more restrictive than prose text

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Ralf Handl created ODATA-1283:
---------------------------------

             Summary: $search: ABNF comment is more restrictive than prose text
                 Key: ODATA-1283
                 URL: https://issues.oasis-open.org/browse/ODATA-1283
             Project: OASIS Open Data Protocol (OData) TC
          Issue Type: Improvement
          Components: ABNF
    Affects Versions: V4.01_CS01
         Environment: Proposed
            Reporter: Ralf Handl
             Fix For: V4.01_CS02


[ABNF line 347|https://github.com/oasis-tcs/odata-abnf/blob/master/abnf/odata-abnf-construction-rules.txt#L347] states
{code:java}
; The words AND, OR, and NOT are not a valid searchWord.
{code}
This is more restrictive than the corresponding prose text (bold parts for later reference below):
{quote}The search expression can contain any number of terms, phrases, or group expressions, along with the case-sensitive keywordsÂNOT,ÂAND, andÂOR, evaluated in that order.

Expressions *prefaced withÂNOT*Âevaluate to true if the expression is not matched, otherwise false.

Two expressions not enclosed in quotes and separated by a space are equivalent to the same two expressions *separated by theÂAND*Âkeyword. Such expressions evaluate toÂtrueÂif both of the expressions evaluate to true, otherwise false.

Expressions *separated by anÂOR*Âevaluate to true if either of the expressions evaluate to true, otherwise false.
{quote}
Â
The prose text would allow using the words AND and OR as the first search word in an expression because the operators *separate* search expressions, and NOT as the only search word because the operator *prefaces* an expression.
Â



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