Re: Petites majuscules

[Nicolas Sceaux]

Le 22 août 2010 à 19:38, Cécile Huneau a écrit :

> Encore moi !
> Toujours pour le même "recueil" mais à nouveau sujet, nouveau mail :
> Je crois connaître la réponse (négative) mais dans le doute : est-il possible 
> d'écrire des petites majuscules accentuées ?
> C'est tout pour le moment !
> Cécile

J'utilise la fonction suivante pour les petites majuscules accentuées,
afin de coutourner une limitation de guile.  Ensuite, il suffit d'écrire
par exemple : \markup \smallCaps { Théâtre }


%%% Guile does not deal with accented letters
#(use-modules (ice-9 regex))
%%;; actually defined below, in a closure
#(define-public string-upper-case #f)
#(define accented-char-upper-case? #f)
#(define accented-char-lower-case? #f)

%%;; an accented character is seen as two characters by guile
#(let ((lower-case-accented-string "éèêëáàâäíìîïóòôöúùûüçœæ")
       (upper-case-accented-string "ÉÈÊËÁÀÂÄÍÌÎÏÓÒÔÖÚÙÛÜÇŒÆ"))
   (define (group-by-2 chars result)
      (if (or (null? chars) (null? (cdr chars)))
          (reverse! result)
          (group-by-2 (cddr chars)
                      (cons (string (car chars) (cadr chars))
                            result))))
   (let ((lower-case-accented-chars
          (group-by-2 (string->list lower-case-accented-string) (list)))
         (upper-case-accented-chars
          (group-by-2 (string->list upper-case-accented-string) (list))))
     (set! string-upper-case
           (lambda (str)
             (define (replace-chars str froms tos)
               (if (null? froms)
                   str
                   (replace-chars (regexp-substitute/global #f (car froms) str
                                                            'pre (car tos) 
'post)
                                  (cdr froms)
                                  (cdr tos))))
             (string-upcase (replace-chars str
                                           lower-case-accented-chars
                                           upper-case-accented-chars))))
     (set! accented-char-upper-case?
           (lambda (char1 char2)
             (member (string char1 char2) upper-case-accented-chars string=?)))
     (set! accented-char-lower-case?
           (lambda (char1 char2)
             (member (string char1 char2) lower-case-accented-chars 
string=?)))))

#(define-markup-command (smallCaps layout props text) (markup?)
  "Turn @code{text}, which should be a string, to small caps.
@example
\\markup \\small-caps \"Text between double quotes\"
@end example"
  (define (string-list->markup strings lower)
    (let ((final-string (string-upper-case
                         (apply string-append (reverse strings)))))
      (if lower
          (markup #:fontsize -2 final-string)
          final-string)))
  (define (make-small-caps rest-chars currents current-is-lower prev-result)
    (if (null? rest-chars)
        (make-concat-markup (reverse! (cons (string-list->markup
                                              currents current-is-lower)
                                            prev-result)))
        (let* ((ch1 (car rest-chars))
               (ch2 (and (not (null? (cdr rest-chars))) (cadr rest-chars)))
               (this-char-string (string ch1))
               (is-lower (char-lower-case? ch1))
               (next-rest-chars (cdr rest-chars)))
          (cond ((and ch2 (accented-char-lower-case? ch1 ch2))
                 (set! this-char-string (string ch1 ch2))
                 (set! is-lower #t)
                 (set! next-rest-chars (cddr rest-chars)))
                ((and ch2 (accented-char-upper-case? ch1 ch2))
                 (set! this-char-string (string ch1 ch2))
                 (set! is-lower #f)
                 (set! next-rest-chars (cddr rest-chars))))
          (if (or (and current-is-lower is-lower)
                  (and (not current-is-lower) (not is-lower)))
              (make-small-caps next-rest-chars
                               (cons this-char-string currents)
                               is-lower
                               prev-result)
              (make-small-caps next-rest-chars
                               (list this-char-string)
                               is-lower
                               (if (null? currents)
                                   prev-result
                                   (cons (string-list->markup
                                            currents current-is-lower)
                                         prev-result)))))))
  (interpret-markup layout props
    (if (string? text)
        (make-small-caps (string->list text) (list) #f (list))
        text)))