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;;; abbrev.scm -- Determining abbreviations.
;;;
;;; Copyright 2006 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.
(define-module (skribilo biblio abbrev)
:use-module (srfi srfi-13)
:autoload (ice-9 regex) (regexp-substitute/global)
:export (is-abbreviation? is-acronym? abbreviate-word))
;;; Author: Ludovic Court�s
;;;
;;; Commentary:
;;;
;;; Heuristics to identify or generate abbreviations.
;;;
;;; Code:
(define (is-abbreviation? str)
;; Return #t if STR denotes an abbreviation or name initial.
(and (>= (string-length str) 2)
(char=? (string-ref str 1) #\.)))
(define (is-acronym? str)
(string=? str (string-upcase str)))
(define (abbreviate-word word)
(if (or (string=? "" word)
(and (>= (string-length word) 3)
(string=? "and" (substring word 0 3)))
(is-acronym? word))
word
(let ((dash (string-index word #\-))
(abbr (string (string-ref word 0) #\.)))
(if (not dash)
abbr
(string-append (string (string-ref word 0)) "-"
(abbreviate-word
(substring word (+ 1 dash)
(string-length word))))))))
(define (abbreviate-string subst title)
;; Abbreviate common conference names within TITLE based on the SUBST list
;; of regexp-substitution pairs. This function also removes the
;; abbreviation if it appears in parentheses right after the substitution
;; regexp. Example:
;;
;; "Symposium on Operating Systems Principles (SOSP 2004)"
;;
;; yields
;;
;; "SOSP"
;;
(let loop ((title title)
(subst subst))
(if (null? subst)
title
(let* ((abbr (cdar subst))
(abbr-rexp (string-append "( \\(" abbr "[^\\)]*\\))?"))
(to-replace (string-append (caar subst) abbr-rexp)))
(loop (regexp-substitute/global #f to-replace title
'pre abbr 'post)
(cdr subst))))))
;;; arch-tag: 34e0c5bb-592f-467b-b59a-d6f7d130ae4e
;;; abbrev.scm ends here
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