OSF DCE Application Development Guide--Core Components

OSF DCE Application Development Guide—Core Components

17.16 IDL Grammar Synopsis

This section summarizes IDL syntax, in extended Backus-Naur Format (BNF) notation.

<interface> ::= <interface_header> "{" <interface_body> "}"

<interface_header> ::=

"[" <interface_attributes> "]" "interface" <identifier>

<interface_attributes> ::=

<interface_attribute> [ "," <interface_attribute> ] ...

<interface_attribute> ::= "uuid" "(" <uuid_rep> ")"

| "version" "(" <major> [ "." <minor> ] ")"

| "endpoint" "(" <endpoint_spec> [ "," <endpoint_spec> ] ... ")"

| "pointer_default" "(" <pointer_attribute> ")"

| "local"

| "exceptions" "(" <excep_name> ["," <excep_name>] ... ")"

<excep_name> ::= <Identifier>

<endpoint_spec> ::=

""" <family_string> ":" "[" <endpoint_string> "]" """

<family_string> ::= <identifier>

<endpoint_string> ::= <identifier>

<interface_body> ::= [ <import> ] ... [ <export> ] ...

<export> ::= <const_declaration> ";"

| <type_declaration> ";"

| <op_declaration> ";"

<import> ::= import <import_files> ";"

<import_files> ::= <filename> [ "," <filename> ] ... ";"

<filename> ::= """ <character> ... """

<const_declaration> ::=

"const" <const_type_spec> <identifier> "=" <const_exp>

<const_type_spec> ::=

<integer_type> | "char" | "char" "*" | "boolean" | "void" "*"

<const_exp> ::=

<integer_const_exp> | <character_const> | <string_const>

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