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| Current File : //usr/share/m17n/TIBT-OTF.flt |
;; TIBT-OTF.flt -- Font Layout Table for Tibetan (OpenType font)
;; Copyright (C) 2005, 2007 AIST (H15PRO112)
;; See the end for copying conditions.
(font layouter tibt-otf nil
(font (nil nil unicode-bmp :otf=tibt=ccmp,blws,abvs)))
;;; <li> TIBT-OTF.flt
;;;
;;; For TibetanMachineUniAlpha.ttf to draw Tibetan script.
;;; The font is available at:
;;; <ul>
;;; <li> debian package: ttf-tmuni
;;; </ul>
;; Step 0: Reordering Characters
;;
;; According to the Unicode canonical combining class value (CCCV),
;; Tibetan combining characters must be orderd in the following way:
;;
;; MARK HALANTA (CCCV=9)
;; VOWEL SIGN AA (129)
;; Above base vowel signs (130)
;; VOWEL SIGN U (132)
;; MARK TSA -PHRU (216)
;;
;; However, the current font expects the following order:
;;
;; MARK TSA -PHRU
;; VOWEL SIGN AA
;; VOWEL SIGN U
;; MARK HALANTA
;; Above base vowel signs
(category
(0x0F00 0x0FCF ?x) ; default
(0x0F39 ?T) ; MARK TSA -PHRU
(0x0F71 ?A) ; VOWEL SIGN AA
(0x0F72 ?V) ; VOWEL SIGN I
(0x0F74 ?U) ; VOWEL SIGN U
(0x0F7A 0x0F7D ?V) ; VOWEL SIGN E .. VOWEL SIGN OO
(0x0F80 ?V) ; VOWEL SIGN REVERSED I
(0x0F84 ?H)) ; MARK HALANTA
(generator
(0
(cond
("x+"
= *)
("(H?)(A*)(V?)(U*)(T?)"
(5 =) (2 = *) (4 = *) (1 =) (3 =)))
*))
;; Step 1: Syllable identification
;; C: Consonants
;; T: MARK TSA -PHRU
;; c: Subjoind consonants
;; A: VOWEL SIGN AA
;; U: VOWEL SIGN U
;; H: MARK HALANTA
;; V: Above or two-part vowel signs
;; S: Above base signs
;; s: Other above base signs
;; x: Others
(category
(0x0F00 0x0FCF ?x) ; default
(0x0F39 ?T) ; MARK TSA -PHRU
(0x0F40 0x0F6A ?C) ; LETTER KA .. LETTER FIXED-FORM RA
(0x0F71 ?A) ; VOWEL SIGN AA
(0x0F72 0x0F7E ?V) ; VOWEL SIGN I .. SIGN RJES SU NGA RO
(0x0F74 ?U) ; VOWEL SIGN U
(0x0F80 0x0F81 ?V) ; VOWEL SIGN REVERSED I, REVERSED II
(0x0F82 0x0F83 ?S) ; SIGN NYI ZLA NAADA, SIGN SNA LDAN
(0x0F84 ?H) ; MARK HALANTA
(0x0F86 0x0F87 ?s) ; SIGN LCI RTAGS, SIGN YANG RTAGS
(0x0F88 0x0F89 ?C) ; SIGN LCE TSA CAN, SIGN MCHU CAN
(0x0F90 0x0FBC ?c)) ; SUBJOIND LETTER KA .. FIXED-FORM RA
(generator
(0
(cond
;; For some reason, it is better not to apply the abvs feature when
;; both A and U exist.
("(C)(T?)(c*)(A*)(U*)(H?)(V*)(S*)(s*)"
< otf:tibt=ccmp,blws,abvs >)
("."
=))
*))
;; Copyright (C) 2005, 2007
;; National Institute of Advanced Industrial Science and Technology (AIST)
;; Registration Number H15PRO112
;; This file is part of the m17n database; a sub-part of the m17n
;; library.
;; The m17n library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public License
;; as published by the Free Software Foundation; either version 2.1 of
;; the License, or (at your option) any later version.
;; The m17n library 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
;; Lesser General Public License for more details.
;; You should have received a copy of the GNU Lesser General Public
;; License along with the m17n library; if not, write to the Free
;; Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;; Local Variables:
;; mode: lisp
;; coding: utf-8
;; End: