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- ;; TELU-OTF.flt -- Font Layout Table for Telugu OpenType fonts
- ;; Copyright (C) 2004, 2007, 2008 AIST (H15PRO112)
- ;; See the end for copying conditions.
-
- (font layouter telu-otf nil
- (font (nil nil unicode-bmp :otf=telu=blwf)))
-
- ;;; <li> TELU-OTF.flt
- ;;;
- ;;; For Telugu OpenType fonts to draw the Telugu script.
-
- (category
- ;; C: consonant
- ;; H: HALANT
- ;; u: vowel sign (above)
- ;; p: vowel sign (post)
- ;; b: vowel sign (below)
- ;; a: vowel modifier (post)
- ;; V: independent vowel
- ;; N: ZWNJ (ZERO WIDTH NON-JOINER)
- ;; J: ZWJ (ZERO WIDTH JOINER)
- ;; X: generic
- (0x0C00 0x0C7F ?E) ; generic
- (0x0C01 0x0C03 ?a) ; SIGN CANDRABINDU .. VISARGA
- (0x0C05 0x0C14 ?V) ; LETTER A .. AU
- (0x0C15 0x0C39 ?C) ; LETTER KA .. HA
- (0x0C3E 0x0C40 ?u) ; VOWEL SIGN AA .. II
- (0x0C41 0x0C44 ?p) ; VOWEL SIGN U .. VOCALIC RR
- (0x0C46 0x0C47 ?u) ; VOWEL SIGN E .. EE
- (0x0C4A 0x0C4C ?u) ; VOWEL SIGN O .. AU
- (0x0C4D ?H) ; SIGN VIRAMA
- (0x0C55 ?u) ; LENGTH MARK
- (0x0C56 ?b) ; AI LENGTH MARK
- (0x0C58 0x0C59 ?C) ; LETTER TSA .. DZA
- (0x0C60 0x0C61 ?V) ; LETTER VOCALIC RR .. VOCALIC LL
- (0x0C62 0x0C63 ?b) ; VOWEL SIGN VOCALIC L .. LL
- (0x0964 0x0965 ?X) ; DANDA .. DOUBLE DANDA
- (0x200C ?N) ; ZWNJ
- (0x200D ?J) ; ZWJ
- )
-
- ;; Decompose two-part vowels.
- (generator
- (0
- (cond
- ((0x0C48)
- 0x0C46 0x0C56)
- ("." =))
- *))
-
- ;; Syllable identification and reordering. The base consonant is
- ;; always the first one, because all Telugu consonants have a below
- ;; form.
- (generator
- (0
- (cond
- ;; A syllable with a vowel sign.
- ;;1 23 4 5
- ("(C)((HC)*)(ub?|p)(a)?"
- < | (1 =) (2 move-h) (4 = *) (5 =) | >)
-
- ;; A syllable with a vowel modifier.
- ;;1 23 4
- ("(C)((HC)*)(a)"
- < | (1 =) (2 move-h) (4 =) | >)
-
- ;; No vowel signs, no vowel modifiers. If the syllable ends with a
- ;; Halant, cancel the Halant movement.
- ;;1 23 4
- ("(C)((HC)*)(HN?)?"
- < | (1 =) (4 0x0C4D) (2 move-h) | >)
-
- ;; A syllable starting with an independent vowel.
- ("Va?"
- < | = * | >)
-
- ("." =))
- *)
-
- (move-h
- (cond
- ("(H)(.+)"
- (2 = *) (1 =)))))
-
- ;; Apply OTF features. In case of Telugu, 'akhn' is applied after
- ;; reordering.
- (generator
- (0
- (cond
- ;; A syllable that ends with a Halant.
- (" (CH)([^ ]*) "
- (1 otf:telu=haln+) (2 otf:telu=akhn,blwf,abvs,blws,psts+abvm,blwm,dist))
-
- ;; Ordinary syllables.
- (" ([^ ]+) "
- (1 otf:telu=akhn,blwf,abvs,blws,psts+absm,blwm,dist))
-
- ("."
- [ = ]))
- *))
-
- ;; Copyright (C) 2004, 2007, 2008
- ;; 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: emacs-lisp
- ;; End:
-