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/*
Crown Copyright (c) 1997
This TenDRA(r) Computer Program is subject to Copyright
owned by the United Kingdom Secretary of State for Defence
acting through the Defence Evaluation and Research Agency
(DERA). It is made available to Recipients with a
royalty-free licence for its use, reproduction, transfer
to other parties and amendment for any purpose not excluding
product development provided that any such use et cetera
shall be deemed to be acceptance of the following conditions:-
(1) Its Recipients shall ensure that this Notice is
reproduced upon any copies or amended versions of it;
(2) Any amended version of it shall be clearly marked to
show both the nature of and the organisation responsible
for the relevant amendment or amendments;
(3) Its onward transfer from a recipient to another
party shall be deemed to be that party's acceptance of
these conditions;
(4) DERA gives no warranty or assurance as to its
quality or suitability for any purpose and DERA accepts
no liability whatsoever in relation to any use to which
it may be put.
*/
%types%
StringT;
CCodeP;
BoolT;
%terminals%
blt-prefixes; // %prefixes%
blt-maps; // %maps%
blt-assignments; // %assignments%
blt-terminals; // %terminals%
blt-header; // %header%
blt-actions; // %actions%
blt-trailer; // %trailer%
blt-result-assign; // %result-assignments%
sid-identifier: () -> (: StringT);
c-identifier: () -> (: StringT);
separator; // ,
typemark; // :
terminator; // ;
begin-action; // <
define; // =
end-action; // >
code: () -> (: CCodeP); // @{ ... @}
arrow; // ->
open-tuple; // (
close-tuple; // )
blt-param-assign; // %parameter-assignments%
reference; // &
eof;
%productions%
<set-prefix>: (: StringT &) -> ();
<x-set-prefix>: (: StringT &) -> ();
<set-map>: (: StringT &) -> ();
<x-set-map>: (: StringT &) -> ();
<init-tuple>;
<tuple-type>: (: StringT &, : StringT &) -> ();
<tuple-ref-type>: (: StringT &, : StringT &) -> ();
<tuple-name>: (: StringT &) -> ();
<save-tuple>;
<null-type>;
<assign>: (: StringT &) -> ();
<x-assign>: (: CCodeP) -> ();
<passign>: (: StringT &) -> ();
<x-passign>: (: CCodeP) -> ();
<rassign>: (: StringT &) -> ();
<x-rassign>: (: CCodeP) -> ();
<set-terminal>: (: StringT &) -> ();
<x-set-terminal>: (: CCodeP) -> ();
<set-action>: (: StringT &) -> ();
<x-set-action>: (: CCodeP) -> ();
<set-header1>: (: CCodeP) -> ();
<set-header2>: (: CCodeP) -> ();
<set-trailer1>: (: CCodeP) -> ();
<set-trailer2>: (: CCodeP) -> ();
<unhandled-syntax-error>;
<expected-identifier>;
<expected-c-identifier>;
<expected-separator>;
<expected-open-tuple>;
<expected-close-tuple>;
<expected-arrow>;
<expected-terminator>;
<expected-end-action>;
<expected-define>;
<expected-code>;
<expected-blt-header>;
<expected-blt-terminals>;
<expected-blt-actions>;
<expected-blt-trailer>;
<expected-eof>;
<destroy-string>: (: StringT &) -> ();
<skip-to-end-of-tuple-defn>;
<skip-to-end-of-prefix>;
<skip-to-end-of-map>;
<skip-to-end-of-assignment>;
<skip-to-end-of-result-assign>;
<skip-to-end-of-param-assign>;
<skip-to-end-of-terminal>;
<skip-to-end-of-action>;
<skip-recover>;
<is-close-tuple-or-skipped-or-eof>: () -> (: BoolT);
c-parse-grammar [
// IDENTIFIERS:
identifier: () -> (id: StringT) = {
id = sid-identifier;
||
id = c-identifier;
};
// PREFIX DEFINITIONS:
prefix-list [
prefix = {
prefix = identifier;
<set-prefix> (&prefix);
{
define;
##
<expected-define>;
};
{
name = c-identifier;
<x-set-prefix> (&name);
{
terminator;
##
<expected-terminator>;
};
##
<expected-c-identifier>;
<skip-to-end-of-prefix>;
};
};
] = {
$;
||
prefix;
<skip-recover>;
prefix-list;
};
// IDENTIFIER MAPPING:
map-list [
map = {
from = identifier;
<set-map> (&from);
{
arrow;
##
<expected-arrow>;
};
{
to = c-identifier;
<x-set-map> (&to);
{
terminator;
##
<expected-terminator>;
};
##
<expected-c-identifier>;
<skip-to-end-of-map>;
};
};
] = {
$;
||
map;
<skip-recover>;
map-list;
};
// FUNCTION TYPE SPECIFICATIONS:
function-type-defn [
tuple-defn = {
name = c-identifier;
{
typemark;
{
type = identifier;
{
reference;
<tuple-ref-type> (&name,
&type);
||
<tuple-type> (&name, &type);
};
##
<expected-identifier>;
<destroy-string> (&name);
<skip-to-end-of-tuple-defn>;
};
||
<tuple-name> (&name);
};
##
<expected-identifier>;
<skip-to-end-of-tuple-defn>;
};
tuple-defn-list-1 = {
tuple-defn;
{
? = <is-close-tuple-or-skipped-or-eof>;
||
separator;
tuple-defn-list-1;
##
<expected-separator>;
tuple-defn-list-1;
};
};
tuple-defn-list = {
$;
||
tuple-defn-list-1;
};
type-tuple-defn = {
<init-tuple>;
{
open-tuple;
##
<expected-open-tuple>;
};
tuple-defn-list;
<skip-recover>;
{
close-tuple;
##
<expected-close-tuple>;
};
};
] = {
typemark;
type-tuple-defn;
<save-tuple>;
{
arrow;
##
<expected-arrow>;
};
type-tuple-defn;
||
<null-type>;
};
// ASSIGNMENT DEFINITIONS:
assignment-list [
assignment = {
id = identifier;
<assign> (&id);
function-type-defn;
{
define;
##
<expected-define>;
};
{
body = code;
<x-assign> (body);
{
terminator;
##
<expected-terminator>;
};
##
<expected-code>;
<skip-to-end-of-assignment>;
};
};
] = {
$;
||
assignment;
<skip-recover>;
assignment-list;
};
param-assign-list [
param-assign = {
id = identifier;
<passign> (&id);
function-type-defn;
{
define;
##
<expected-define>;
};
{
body = code;
<x-passign> (body);
{
terminator;
##
<expected-terminator>;
};
##
<expected-code>;
<skip-to-end-of-param-assign>;
};
};
] = {
$;
||
param-assign;
<skip-recover>;
param-assign-list;
};
result-assign-list [
result-assign = {
id = identifier;
<rassign> (&id);
function-type-defn;
{
define;
##
<expected-define>;
};
{
body = code;
<x-rassign> (body);
{
terminator;
##
<expected-terminator>;
};
##
<expected-code>;
<skip-to-end-of-result-assign>;
};
};
] = {
$;
||
result-assign;
<skip-recover>;
result-assign-list;
};
// TERMINAL RESULT EXTRACTION DEFINITIONS:
terminal-list [
terminal = {
id = identifier;
<set-terminal> (&id);
function-type-defn;
{
define;
##
<expected-define>;
};
{
body = code;
<x-set-terminal> (body);
{
terminator;
##
<expected-terminator>;
};
##
<expected-code>;
<skip-to-end-of-terminal>;
};
};
] = {
$;
||
terminal;
<skip-recover>;
terminal-list;
};
// ACTION DEFINITIONS:
action-list [
action = {
begin-action;
{
id = identifier;
<set-action> (&id);
{
end-action;
##
<expected-end-action>;
};
function-type-defn;
{
define;
##
<expected-define>;
};
{
body = code;
<x-set-action> (body);
{
terminator;
##
<expected-terminator>;
};
##
<expected-code>;
<skip-to-end-of-action>;
};
##
<expected-identifier>;
<skip-to-end-of-action>;
};
};
] = {
$;
||
action;
<skip-recover>;
action-list;
};
] /* c-parse-grammar */ = {
{
blt-prefixes;
prefix-list;
||
$;
};
{
blt-maps;
map-list;
||
$;
};
{
blt-header;
##
<expected-blt-header>;
};
{
h1 = code;
<set-header1> (h1);
##
<expected-code>;
};
{
separator;
##
<expected-separator>;
};
{
h2 = code;
<set-header2> (h2);
##
<expected-code>;
};
{
terminator;
##
<expected-terminator>;
};
{
blt-assignments;
assignment-list;
||
$;
};
{
blt-param-assign;
param-assign-list;
||
$;
};
{
blt-result-assign;
result-assign-list;
||
$;
};
{
blt-terminals;
##
<expected-blt-terminals>;
};
terminal-list;
{
blt-actions;
##
<expected-blt-actions>;
};
action-list;
{
blt-trailer;
##
<expected-blt-trailer>;
};
{
t1 = code;
<set-trailer1> (t1);
##
<expected-code>;
};
{
separator;
##
<expected-separator>;
};
{
t2 = code;
<set-trailer2> (t2);
##
<expected-code>;
};
{
terminator;
##
<expected-terminator>;
};
{
eof;
##
<expected-eof>;
};
##
<unhandled-syntax-error>;
};
%entry% c-parse-grammar;