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|
;;;; -*- Scheme -*-
;;;; bibtex-parser.y -- SILex input for BibTeX
;;;;
;;;; Copyright � 2004 Erick Gallesio - I3S-CNRS/ESSI <eg@essi.fr>
;;;;
;;;;
;;;; This program 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 2 of the License, or
;;;; (at your option) any later version.
;;;;
;;;; This program 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 this program; if not, write to the Free Software
;;;; Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
;;;; USA.
;;;;
;;;; Author: Erick Gallesio [eg@essi.fr]
;;;; Creation date: 21-Oct-2004 17:47 (eg)
;;;; Last file update: 22-Oct-2004 18:14 (eg)
;;;;
(load "lalr")
(define (main args)
;; Build the parser
(lalr-parser
;; Options
(output: parser "bibtex-parser.stk")
;; Terminal symbols
(CHAR BLANK IDENT STRING COMMA LBRACKET RBRACKET NUMBER EQUAL
BIBSTRING BIBITEM)
;; Rules
(S
()
(S string-def)
(S blank*)
(S bibtex-entry))
(blank*
()
(blank* BLANK))
(string-def
(BIBSTRING LBRACKET blank* IDENT blank* EQUAL blank* entry-value
blank* RBRACKET)
: (bibtex-string-def! (car $4) (car $8)))
(bibtex-entry
(BIBITEM LBRACKET blank* IDENT blank* COMMA blank* entry-item* RBRACKET)
: (make-bibentry $1 $4 $8))
(entry-item*
(blank*)
: '()
(entry-item)
: (list $1)
(entry-item COMMA entry-item*)
: (cons $1 $3))
(entry-item
(blank* IDENT blank* EQUAL blank* entry-value blank*)
: (cons (car $2) $6))
(entry-value
(NUMBER)
: (list (car $1))
(STRING)
: $1
(IDENT)
: (bibtex-string-ref (car $1))
(LBRACKET entry-value-block* RBRACKET)
: (list (apply string-append $2)))
(entry-value-block*
()
: '()
(entry-value-block* entry-value-block)
: (append $1 $2))
(entry-value-block
(LBRACKET entry-value-block* RBRACKET)
: $2
(COMMA)
: (list ",")
(IDENT)
: $1
(BLANK)
: (list " ")
(EQUAL)
: (list "=")
(CHAR)
: $1
(NUMBER)
: $1
(STRING)
: $1)
)
;; Terminate
0)
|
