[Sip] SIP grammar

[murali foru <murali138@yahoo.com>]

Hi All,

I have a small doubt on SIP grammar defined in RFC
3261. I see the grammar to be ambigious.

Accept         =  "Accept" HCOLON
                   [ accept-range *(COMMA
accept-range) ]
accept-range   =  media-range *(SEMI accept-param)
media-range    =  ( "*/*"
                  / ( m-type SLASH "*" )
                  / ( m-type SLASH m-subtype )
                  ) *( SEMI m-parameter )
accept-param   =  ("q" EQUAL qvalue) / generic-param

Both m-parameter and  accept-param are delimited by
SEMI. How do I differentiate?

Thanks in advance

Regards,
Murali


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