mirror of
https://git.savannah.gnu.org/git/emacs.git
synced 2024-11-23 07:19:15 +00:00
108 lines
2.6 KiB
Plaintext
108 lines
2.6 KiB
Plaintext
;;; scheme.by -- Scheme BNF language specification
|
|
|
|
;; Copyright (C) 2001-2024 Free Software Foundation, Inc.
|
|
|
|
;; This file is part of GNU Emacs.
|
|
|
|
;; GNU Emacs is free software: you can redistribute it and/or modify
|
|
;; it under the terms of the GNU General Public License as published by
|
|
;; the Free Software Foundation, either version 3 of the License, or
|
|
;; (at your option) any later version.
|
|
|
|
;; GNU Emacs is distributed in the hope that it will be useful,
|
|
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
;; GNU General Public License for more details.
|
|
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
|
|
|
|
%package semantic-scm-by
|
|
%provide semantic/bovine/scm-by
|
|
|
|
%{
|
|
(declare-function semantic-parse-region "semantic"
|
|
(start end &optional nonterminal depth returnonerror))
|
|
}
|
|
|
|
%languagemode scheme-mode
|
|
%start scheme
|
|
|
|
%token DEFINE "define"
|
|
%token DEFINE-MODULE "define-module"
|
|
%token MODULE "module"
|
|
%token LOAD "load"
|
|
|
|
%put DEFINE summary "Function: (define symbol expression)"
|
|
%put DEFINE-MODULE summary "Function: (define-module (name arg1 ...)) "
|
|
%put LOAD summary "Function: (load \"filename\")"
|
|
|
|
%token <open-paren> OPENPAREN "("
|
|
%token <close-paren> CLOSEPAREN ")"
|
|
|
|
%%
|
|
|
|
scheme : semantic-list
|
|
( ,(let ((expand (EXPAND $1 scheme-list)))
|
|
(cond
|
|
((semantic-tag-of-class-p expand 'module)
|
|
(TYPE-TAG (semantic-tag-name expand)
|
|
"module"
|
|
(EXPANDFULL $1 scheme)
|
|
nil) ;; Module contains more definitions like a type
|
|
)
|
|
(t
|
|
expand))))
|
|
;
|
|
|
|
scheme-list : OPENPAREN scheme-in-list
|
|
( ,$2 )
|
|
;
|
|
|
|
|
|
scheme-in-list: DEFINE symbol expression
|
|
(VARIABLE-TAG $2 nil $3 )
|
|
| DEFINE name-args opt-doc
|
|
(FUNCTION-TAG (car ,$2) nil (cdr ,$2) )
|
|
| DEFINE-MODULE name-args
|
|
(PACKAGE-TAG (nth (length $2) $2 ) nil)
|
|
| MODULE symbol
|
|
(TAG $1 'module :members nil)
|
|
| LOAD string
|
|
(INCLUDE-TAG (file-name-nondirectory (read $2)) (read $2) )
|
|
| symbol sequence
|
|
(CODE-TAG $1 nil)
|
|
| ;; No match, error
|
|
(TAG "Bad Tag in Sexp" 'error)
|
|
;
|
|
|
|
name-args: semantic-list
|
|
(EXPAND $1 name-arg-list)
|
|
;
|
|
|
|
name-arg-list : OPENPAREN name-arg-expand
|
|
( ,$2 )
|
|
;
|
|
|
|
name-arg-expand: symbol name-arg-expand
|
|
( ,(cons $1 ,$2) )
|
|
| ;; EMPTY
|
|
( )
|
|
;
|
|
|
|
opt-doc : string
|
|
| ;; EMPTY
|
|
;
|
|
|
|
sequence : expression sequence
|
|
| expression
|
|
;
|
|
|
|
expression : symbol
|
|
| semantic-list
|
|
| string
|
|
| number
|
|
;
|
|
|
|
;;; scheme.by ends here
|