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;;;;
;;;; biblio.scm -- Bibliography functions
;;;;
;;;; Copyright � 2003-2004 Erick Gallesio - I3S-CNRS/ESSI <eg@essi.fr>
;;;; Copyright 2005 Ludovic Court�s <ludovic.courtes@laas.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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
;;;; USA.main.st
;;;;
;;;; Author: Erick Gallesio [eg@essi.fr]
;;;; Creation date: 31-Aug-2003 22:07 (eg)
;;;; Last file update: 28-Oct-2004 21:19 (eg)
;;;;
(define-module (skribe biblio)
:use-module (skribe runtime)
:export (bib-tables? make-bib-table default-bib-table
bib-load! resolve-bib resolve-the-bib
bib-sort/authors bib-sort/idents bib-sort/dates))
(define *bib-table* #f)
;; Forward declarations
(define skribe-open-bib-file #f)
(define parse-bib #f)
(include "../common/bib.scm")
;;;; ======================================================================
;;;;
;;;; Utilities
;;;;
;;;; ======================================================================
(define (make-bib-table ident)
(make-hash-table))
(define (bib-table? obj)
(hashtable? obj))
(define (default-bib-table)
(unless *bib-table*
(set! *bib-table* (make-bib-table "default-bib-table")))
*bib-table*)
;;
;; Utilities
;;
(define (%bib-error who entry)
(let ((msg "bibliography syntax error on entry"))
(if (%epair? entry)
(skribe-line-error (%epair-file entry) (%epair-line entry) who msg entry)
(skribe-error who msg entry))))
;;;; ======================================================================
;;;;
;;;; BIB-DUPLICATE
;;;;
;;;; ======================================================================
(define (bib-duplicate ident from old)
(let ((ofrom (markup-option old 'from)))
(skribe-warning 2
'bib
(format "Duplicated bibliographic entry ~a'.\n" ident)
(if ofrom
(format " Using version of `~a'.\n" ofrom)
"")
(if from
(format " Ignoring version of `~a'." from)
" Ignoring redefinition."))))
;;;; ======================================================================
;;;;
;;;; PARSE-BIB
;;;;
;;;; ======================================================================
(define (parse-bib table port)
(if (not (bib-table? table))
(skribe-error 'parse-bib "Illegal bibliography table" table)
(let ((from (port-file-name port)))
(let Loop ((entry (read port)))
(unless (eof-object? entry)
(cond
((and (list? entry) (> (length entry) 2))
(let* ((kind (car entry))
(key (format "~A" (cadr entry)))
(fields (cddr entry))
(old (hashtable-get table key)))
(if old
(bib-duplicate ident from old)
(hash-table-put! table
key
(make-bib-entry kind key fields from)))
(Loop (read port))))
(else
(%bib-error 'bib-parse entry))))))))
;;;; ======================================================================
;;;;
;;;; BIB-ADD!
;;;;
;;;; ======================================================================
(define (bib-add! table . entries)
(if (not (bib-table? table))
(skribe-error 'bib-add! "Illegal bibliography table" table)
(for-each (lambda (entry)
(cond
((and (list? entry) (> (length entry) 2))
(let* ((kind (car entry))
(key (format "~A" (cadr entry)))
(fields (cddr entry))
(old (hashtable-get table ident)))
(if old
(bib-duplicate key #f old)
(hash-table-put! table
key
(make-bib-entry kind key fields #f)))))
(else
(%bib-error 'bib-add! entry))))
entries)))
;;;; ======================================================================
;;;;
;;;; SKRIBE-OPEN-BIB-FILE
;;;;
;;;; ======================================================================
;; FIXME: Factoriser
(define (skribe-open-bib-file file command)
(let ((path (find-path file *skribe-bib-path*)))
(if (string? path)
(begin
(when (> *skribe-verbose* 0)
(format (current-error-port) " [loading bibliography: ~S]\n" path))
(open-input-file (if (string? command)
(string-append "| "
(format command path))
path)))
(begin
(skribe-warning 1
'bibliography
"Can't find bibliography -- " file)
#f))))
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