[Emacs-diffs] Changes to emacs/lisp/language/indian.el

[Kenichi Handa]

Index: emacs/lisp/language/indian.el
diff -c emacs/lisp/language/indian.el:1.22 emacs/lisp/language/indian.el:1.23
*** emacs/lisp/language/indian.el:1.22  Mon Feb 10 20:43:08 2003
--- emacs/lisp/language/indian.el       Fri Mar 21 20:07:17 2003
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*** 45,50 ****
--- 45,133 ----
  
  (define-coding-system-alias 'devanagari 'in-is13194)
  
+ (defvar indian-font-foundry 'cdac
+   "Font foundry for Indian characters.
+ Currently supported foundries are `cdac' and `akruti'.")
+ 
+ (defvar indian-script-language-alist
+   "Alist of Indian scripts vs the corresponding language list and font 
foundry.
+ Each element has this form:
+ 
+   (SCRIPT LANGUAGE-LIST FONT-FOUNDRY)
+ 
+ SCRIPT is one of Indian script names.
+ 
+ LANGUAGE-LIST is a list of Indian langauge names SCRIPT is used for.
+ The list is in the priority order.
+ 
+ FONT-FOUNDRY is a font foundry representing a group of Indian
+ fonts.  If the value is nil, the value of `indian-font-foundry'
+ is used."
+   '((devanagari (hindi sanskrit) nil)
+     (bengali (bengali assamese) nil)
+     (gurmukhi (punjabi) nil)
+     (gujarati (gujarati) nil)
+     (oriya (oriya) nil)
+     (tamil (tamil) nil)
+     (telugu (telugu) nil)
+     (kannada (kannada) nil)
+     (malayalam (malayalam) nil)))
+ 
+ (defconst indian-font-char-index-table
+   '(                                  ; for which language(s)
+     ;; CDAC fonts
+     (#x0000 . cdac:dv-ttsurekh)               ; hindi, etc
+     (#x0100 . cdac:sd-ttsurekh)               ; sanskrit
+     (#x0200 . cdac:bn-ttdurga)                ; bengali
+     (#x0300 . cdac:as-ttdurga)                ; assamese
+     (#x0400 . cdac:pn-ttamar)         ; punjabi
+     (#x0500 . cdac:gj-ttavantika)     ; gujarati
+     (#x0600 . cdac:or-ttsarala)               ; oriya
+     (#x0700 . cdac:tm-ttvalluvar)     ; tamil
+     (#x0800 . cdac:tl-tthemalatha)    ; telugu
+     (#x0900 . cdac:kn-ttuma)          ; kannada
+     (#x0A00 . cdac:ml-ttkarthika)     ; malayalam
+ 
+     ;; AKRUTI fonts
+     (#x0B00 . akruti:dev)             ; hindi, etc
+     (#x0C00 . akruti:bng)             ; bengali
+     (#x0D00 . akruti:pnj)             ; punjabi
+     (#x0E00 . akruti:guj)             ; gujarati
+     (#x0F00 . akruti:ori)             ; oriya
+     (#x1000 . akruti:tml)             ; tamil
+     (#x1100 . akruti:tlg)             ; telugu
+     (#x1200 . akruti:knd)             ; kannada
+     (#x1300 . akruti:mal)             ; malayalam
+     )
+   "Aliat of indices of `indian-glyph' character vs Indian font identifiers.
+ Each element has this form: (INDEX . FONT-IDENTIFIER)
+ 
+ INDEX is an index number of the first character in the charset
+ `indian-glyph' assigned for glyphs in the font specified by
+ FONT-IDENTIFIER.  Currently FONT-IDENTIFIERs are defined for CDAC
+ and AKRUTI font groups.")
+   
+ (defun indian-font-char (index font-identifier)
+   "Return character of charset `indian-glyph' made from glyph index INDEX.
+ FONT-IDENTIFIER is an identifier of an Indian font listed in the
+ variable `indian-font-char-index-table'.  It specifies which
+ font INDEX is for."
+   (if (or (< index 0) (> index 255))
+       (error "Invalid glyph index: %d" index))
+   (let ((start (car (rassq font-identifier indian-font-char-index-table))))
+     (if (not start)
+       (error "Unknown font identifier: %s" font-identifier))
+     (setq index (+ start index))
+     (make-char 'indian-glyph (+ (/ index 96) 32) (+ (% index 96) 32))))
+ 
+ ;; Return a range of characters (cons of min and max character) of the
+ ;; charset `indian-glyph' for displaying SCRIPT in LANGUAGE by a font
+ ;; of FOUNDRY.
+ 
+ (defun indian-font-char-range (font-identifier)
+   (cons (indian-font-char 0 font-identifier)
+       (indian-font-char 255 font-identifier)))
+        
  (defvar indian-script-table
    '[
      devanagari
***************
*** 80,85 ****
--- 163,172 ----
  
  (setq font-ccl-encoder-alist
        (cons (cons "-CDAC" 'ccl-encode-indian-glyph-font)
+           font-ccl-encoder-alist))
+ 
+ (setq font-ccl-encoder-alist
+       (cons (cons "-AKRUTI" 'ccl-encode-indian-glyph-font)
            font-ccl-encoder-alist))
  
  (provide 'indian)