Optional property query support.

[openssl.git] / crypto / property / properties.ebnf

diff --git a/crypto/property/properties.ebnf b/crypto/property/properties.ebnf
index 9a6857f751452dee43a0d7bf6798f5b74f0c8c31..0051c7e43095e4745878d18772a5a6302da106a3 100644 (file)
--- a/crypto/property/properties.ebnf
+++ b/crypto/property/properties.ebnf
@@ -2,16 +2,17 @@
 
 Definition
       ::= PropertyName ( '=' Value )? ( ',' PropertyName ( '=' Value )? )*
-Query ::= ( '-'? PropertyName | PropertyName ( '=' | '!=' ) Value )
-          ( ',' ( '-'? PropertyName | PropertyName ( '=' | '!=' ) Value ) )*
+Query ::= PropertyQuery ( ',' PropertyQuery )*
+PropertyQuery ::= '-'? PropertyName
+        | '?' ( PropertyName (( '=' | '!=' ) Value)?)
 Value    ::= NumberLiteral
         | StringLiteral
 StringLiteral ::= QuotedString | UnquotedString
 QuotedString     ::= '"' [^"]* '"'
-       | "'" [^']* "'"
+        | "'" [^']* "'"
 UnquotedString ::= [^{space},]+
 NumberLiteral
      ::= '0' ( [0-7]* | 'x' [0-9A-Fa-f]+ )
-       | '-'? [1-9] [0-9]+
+        | '-'? [1-9] [0-9]+
 PropertyName
          ::= [A-Z] [A-Z0-9_]* ( '.' [A-Z] [A-Z0-9_]* )*