;;;;
;;;; source file of the GNU LilyPond music typesetter
;;;;
-;;;; (c) 2004 Jan Nieuwenhuizen <janneke@gnu.org>
+;;;; (c) 2004--2008 Jan Nieuwenhuizen <janneke@gnu.org>
-;; WIP
-;; cp /usr/share/texmf/dvips/base/*.enc mf/out
-;; cp /usr/share/texmf/dvips/tetex/*.enc mf/out
-;; encoding.ly:
-;; #(display (reencode-string "adobe" "latin1" "hellö fóebär"))
-;;
-(define (read-encoding-file filename)
- "Read .enc file, returning a vector of symbols."
- (let* ((raw (ly:gulp-file filename))
- (string (regexp-substitute/global #f "%[^\n]*" raw 'pre "" 'post))
- (start (string-index string #\[))
- (end (string-index string #\]))
- (ps-lst (string-tokenize (substring string (+ start 1) end)))
- (lst (map (lambda (x) (substring x 1)) ps-lst))
- (vector (list->vector lst)))
+(define-public latin1-coding-vector #(.notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef space exclam quotedbl numbersign dollar percent ampersand quoteright parenleft parenright asterisk plus comma hyphen period slash zero one two three four five six seven eight nine colon semicolon less equal greater question at A B C D E F G H I J K L M N O P Q R S T U V W X Y Z bracketleft backslash bracketright asciicircum underscore quoteleft a b c d e f g h i j k l m n o p q r s t u v w x y z braceleft bar braceright asciitilde .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef .notdef dotlessi grave acute circumflex tilde macron breve dotaccent dieresis .notdef ring cedilla .notdef hungarumlaut ogonek caron space exclamdown cent sterling currency yen brokenbar section dieresis copyright ordfeminine guillemotleft logicalnot hyphen registered macron degree plusminus twosuperior threesuperior acute mu paragraph periodcentered cedilla onesuperior ordmasculine guillemotright onequarter onehalf threequarters questiondown Agrave Aacute Acircumflex Atilde Adieresis Aring AE Ccedilla Egrave Eacute Ecircumflex Edieresis Igrave Iacute Icircumflex Idieresis Eth Ntilde Ograve Oacute Ocircumflex Otilde Odieresis multiply Oslash Ugrave Uacute Ucircumflex Udieresis Yacute Thorn germandbls agrave aacute acircumflex atilde adieresis aring ae ccedilla egrave eacute ecircumflex edieresis igrave iacute icircumflex idieresis eth ntilde ograve oacute ocircumflex otilde odieresis divide oslash ugrave uacute ucircumflex udieresis yacute thorn ydieresis))
- vector))
-(define (make-encoding-table encoding-vector)
- "Return a hash table mapping names to chars. ENCODING-VECTOR is a
-vector of symbols."
+(define-public (decode-byte-string str)
+ "Return vector of glyphname symbols that correspond to string,
+assuming that STR is byte-coded using ENCODING-NAME."
- (let* ((h (make-hash-table 256)))
-
- (for-each
- (lambda (i)
- (hash-set! h (vector-ref encoding-vector i)
- (integer->char i)))
- (iota 256))
-
- h))
-
-(define-public (reencode-string permutation str)
- "Apply PERMUTATION, a vector of [0..256) -> char, to STR"
- (string-map (lambda (chr)
- (vector-ref permutation (char->integer chr)))
- str))
-
-(define-public (encoding-permutation input-encoding
- output-encoding)
-
- "Contruct a permutation by applying output-encoding after input-encoding "
- (list->vector
- (map
- (lambda (chr)
- (let*
- ((new-char (hash-ref output-encoding
- (vector-ref input-encoding (char->integer chr)) #f)))
-
- ;; substitute space for unknown characters.
- (if (char? new-char)
- new-char
- #\ )))
- (iota 256))))
-
-
-(define (get-coding-from-file filename)
- "Read FILENAME, return a list containing encoding vector and table"
-
- (let*
- ((vec (read-encoding-file filename))
- (tab (make-encoding-table vec)))
- (list vec tab)))
-
-;; coding-alist maps NAME -> (list VECTOR TAB)
-(define coding-alist
-
- (map (lambda (x)
- (cons (car x)
- (delay (get-coding-from-file (cdr x)))))
-
- '(
- ;; teTeX
- ("TeX typewriter text" . "09fbbfac.enc") ;; cmtt10
- ("TeX math symbols" . "10037936.enc") ;; cmbsy
- ("ASCII caps and digits" . "1b6d048e") ;; cminch
- ("TeX math italic" . "aae443f0.enc") ;; cmmi10
- ("TeX extended ASCII" . "d9b29452.enc")
- ("TeX text" . "f7b6d320.enc")
- ("TeX text without f-ligatures" . "0ef0afca.enc")
- ("Extended TeX Font Encoding - Latin" . "tex256.enc")
-
- ("T1" . "tex256.enc")
-
- ;; for testing -- almost adome
- ("adobe" . "ad.enc")
- ("latin1" . "cork.enc")
-
- ;; LilyPond.
- ("feta braces" . "feta-braces0.enc")
- ("feta number" . "feta-nummer10.enc")
- ("feta music" . "feta20.enc")
- ("parmesan music" . "parmesan20.enc"))
- ))
-
-(define (get-coding coding-name)
- (force (assoc-get coding-name coding-alist )))
-
-(define (get-coding-vector coding-name)
- (car (get-coding coding-name)))
-
-(define (get-coding-table coding-name)
- (cadr (get-coding coding-name)))
-
-
-;;; what's this for? --hwn
-(define-public (encoded-index font-coding input-coding code)
- (format (current-error-port) "CODE: ~S\n" code)
- (let* ((font (get-coding-table font-coding))
- (in (get-coding-vector input-coding))
- (char (vector-ref in code)))
- (format (current-error-port) "CHAR: ~S\n" char)
- (hash-ref font char)))
+ (let* ((len (string-length str))
+ (output-vector (make-vector len '.notdef)))
+ (do
+ ((idx 0 (1+ idx)))
+ ((>= idx len) output-vector)
+ (vector-set! output-vector idx
+ (vector-ref latin1-coding-vector
+ (char->integer (string-ref str idx)))))))
projects / lilypond.git / blobdiff