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[[Category:Hessian]]

Draft Grammar of Hessian 1.1

See [Hessian 1.0 Grammar]

The following is the complete grammar for Hessian 1.1.  All integers are big-endian, i.e. starting with the most-significant byte first.

 top     ::= call
         ::= reply
 
 call    ::= c x01 x00 header* method object* z
 
 reply   ::= r x01 x00 header* object z
         ::= r x01 x00 header* fault z
 
 object  ::= null
         ::= boolean
         ::= int
         ::= long
         ::= double
         ::= date
         ::= string
         ::= xml
         ::= binary
         ::= remote
         ::= ref
         ::= list
         ::= map
 
 header  ::= H b1 b0 header-string object
 method  ::= m b1 b0 method-string
 
 fault   ::= f (object object)*
 
 list    ::= V type? length? object* z
 map     ::= M type? (object object)* z
 remote  ::= r type? string
 
 type    ::= t b1 b0 type-string
 length  ::= l b3 b2 b1 b0
         ::= 0x0b b0
         ::= 0x0c b1 b0
 
 null    ::= N
 boolean ::= T
         ::= F
 
 int     ::= I b3 b2 b1 b0
         ::= 0x80 - 0xaf
         ::= 0x01 b0
         ::= 0x02 b1 b0
 
 long    ::= L b7 b6 b5 b4 b3 b2 b1 b0
         ::= 0xb0 - 0xcf
         ::= 0x03 b0
         ::= 0x04 b1 b0
         ::= 0x05 b3 b2 b1 b0
 
 double  ::= D b7 b6 b5 b4 b3 b2 b1 b0
         ::= 0x06
         ::= 0x07
         ::= 0x08 int

 date    ::= d b7 b6 b5 b4 b3 b2 b1 b0
 
 string  ::= (s b1 b0 string-data)* S b1 b0 string-data
 
 xml     ::= (x b1 b0 xml-data)* X b1 b0 xml-data
 
 binary  ::= (b b1 b0 binary-data)* B b1 b0 binary-data
 
 ref     ::= R b3 b2 b1 b0