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;; MLYM-OTF.flt -- Font Layout Table for Malayalam OpenType fonts ;; Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010 AIST (H15PRO112) ;; See the end for copying conditions. (font layouter mlym-otf nil (version "1.6.0") (font (nil nil unicode-bmp :otf=mlym))) ;;; <li> MLYM-OTF.flt ;;; ;;; For Malayalam OpenType fonts to draw the reformed Malayalam script. ;; AnjaliOldLipi.ttf, Dyuthi3.ttf, Meera_04.ttf, Rachana_04.ttf, suruma2.ttf ;; blwf: 0d32 ;; pstf: 0d2f 0d30 0d35 ;; RaghuMalayalamSans2.ttf ;; blwf: 0d32 ;; pstf: 0d2f 0d30 0d35 0d41 ;; lohit_ml.ttf ;; blwf: 0d32 ;; pstf: 0d2f 0d30 0d31 0d35 0d41 ;; Kalyani121.ttf ;; blwf: N/A ;; pstf: 0d2f 0d30 0d32 0d35 0d41 (category (0x0D00 0x0D7F ?X) ; generic (0x0D02 0x0D03 ?A) ; SIGN ANUSVARA .. VISARGA (0x0D05 0x0D14 ?V) ; LETTER A .. AU (0x0D15 0x0D39 ?C) ; LETTER KA .. HA (0x0D2F ?P) ; LETTER YA (0x0D30 ?R) ; LETTER RA (0x0D32 ?B) ; LETTER LA (0x0D35 ?P) ; LETTER VA (0x0D3E 0x0D44 ?p) ; VOWEL SIGN AA .. VOCALIC RR (0x0D46 0x0D48 ?m) ; VOWEL SIGN E .. AI (0x0D4D ?H) ; SIGN VIRAMA (0x0D57 ?p) ; AU LENGTH MARK (0x0D60 0x0D61 ?V) ; LETTER VOCALIC RR .. VOCALIC LL (0x0D62 0x0D63 ?b) ; VOWEL SIGN VOCALIC L .. LL (0x200C ?N) ; ZWNJ (0x200D ?J) ; ZWJ (0x25CC ?X) ; DOTTED CIRCLE (pstf ?r) ) ;; Stage 0 ;; Preprocessing (generator (0 (cond ;; Decompose two-part vowel signs ((0x0D4A) 0x0D46 0x0D3E) ((0x0D4B) 0x0D47 0x0D3E) ((0x0D4C) 0x0D46 0x0D57) ("." =)) *)) ;; Stage 1 ;; Syllable identification (generator (0 (cond ;; Consonant-based syllables ;;1 23 4 ("([CBPR]((J?H|HJ?)[CBPR])*)(H[NJ]?|m?p?A?)" < | (cond (".+HJ$" :otf=mlym=nukt,akhn+) ("(.+)(H)N?$" (1 :otf=mlym=nukt,akhn+) (2 =) 0x200C) (".+" :otf=mlym=nukt,akhn+)) | >) ;; Syllables with an independent vowel ("V(J?H[BPR])?m?p?A?" < | = * | >) ;; Two-part vowel signs ((0x0D46 0x0D3E) (cond ((font-facility 0x25CC) < = 0x25CC = >) (".+" [ 0x0D4A ]))) ((0x0D47 0x0D3E) (cond ((font-facility 0x25CC) < = 0x25CC = >) (".+" [ 0x0D4B ]))) ((0x0D46 0x0D57) (cond ((font-facility 0x25CC) < = 0x25CC = >) (".+" [ 0x0D4C ]))) ;; Combining marks are displayed with a DOTTED CIRCLE. ("m" (cond ((font-facility 0x25CC) < = 0x25CC >) ("." [ = ]))) ("[HbpA]" (cond ((font-facility 0x25CC) < 0x25CC = >) ("." [ = ]))) ;; Isolated blwf and pstf are displayed with a DOTTED CIRCLE in the ;; next stage. ("(J)(H)([BPR])" < | (1 =) (3 =) (2 =) | >) ("." =)) *)) ;; Stage 2 ;; Reorder halant for blwf and pstf (generator (0 (cond ;; Isolated blwf and pstf (" J([BP]H) " (cond ((font-facility 0x25CC) < 0x25CC (1 :otf=mlym=blwf,pstf+) >) (" J([BP]H) " [ (1 :otf=mlym=blwf,pstf+) ]))) ;; Isolated pref (" J(RH) " (cond ((font-facility 0x25CC) < (1 :otf=mlym=pstf+) 0x25CC >) (" J(RH) " [ (1 :otf=mlym=pstf+) ]))) ;; Overt halnt forms (" ([^ ]+)(HN) " | (1 reorder) (2 = =) |) ;; Ordinary syllables (" ([^mbpA ]+)(m?p?A?) " | (1 reorder) (2 = *) |) ("." =)) *) (reorder (cond ;; pref after pstf ("(.|.+([^PJ]|JP))((J?HP)*J?HR)$" (1 reorder-B *) (3 reorder-any *)) ;; pref between blwf and pstf ("(.*[^J])(J?HR(J?HP)+)$" (1 reorder-B *) (2 reorder-any *)) ;; pref before blwf ("(.*[^J])(J?HR(J?HB)+(J?HP)*)$" (1 reorder-B *) (2 reorder-any *)) ;; no pref ("(.|.+([^PJ]|JP|HJ))((J?HP)*)$" (1 reorder-B *) (3 reorder-any *)))) (reorder-B (cond ("J?(H)(B)" (2 =) (1 =)) ("." =))) (reorder-any ("J?(H)(.)" (2 =) (1 =))) ) ;; Stage 3 ;; Language forms and matra reordering (generator (0 (cond ;; Overt halant forms (" ([^ ]+)(HN) " | (1 blwf-pstf) (2 = =) |) ;; Other syllables ;; 1 2 3 (" ([^mpA ]+)(m)?(p?A?) " | (2 =) (1 blwf-pstf) (3 = *) |) ("." =)) *) (blwf-pstf (cond ;;1 23 4 ("(.|.+BH|.+[^H])((PH)*)(RH)$" (4 :otf=mlym=pstf) (1 :otf=mlym=blwf+) (2 :otf=mlym=pstf+)) ;;1 2 3 ("(.*)(RH)((PH)+)$" (2 :otf=mlym=pstf+) (1 :otf=mlym=blwf+) (3 :otf=mlym=pstf+)) ;;1 2 34 5 ("(.*)(RH)((BH)+)((PH)*)$" (2 :otf=mlym=pstf+) (1 :otf=mlym=blwf+) (3 :otf=mlym=blwf+) (5 :otf=mlym=pstf+)) ;;1 2 ("(.|.+BH|.+[^H])((PH)*)$" (1 :otf=mlym=blwf+) (2 :otf=mlym=pstf+)))) ) ;; Stage 4 ;; Final reordering (Move pre-base matra and pref after the last halant) (generator (0 (cond ;; With a pref, one or more intermediate- and a final overt halant forms. ;; 1 2 3 (" (r)([^ ]+HJ?)([^H ]+HN) " | (2 = *) (1 =) (3 = *) |) ;; With a pref and a final overt halant form. Don't move the pref. (" r[^H ]+HN " = *) ;; 1 2 3 (" (m?r?)([^ ]+HJ?)([^H ]+) " | (2 = *) (1 = *) (3 = *) |) ("." =)) *)) ;; Stage 5 ;; Remove ZWNJ/ZWJ (generator (0 (cond ("[NJ]") ("." =)) *)) ;; Stage 6 ;; GPOS processing (generator (0 (cond (" ([^ ]+) " (1 :otf=mlym=+abvm,blwm,dist)) ("." =)) *)) ;; Copyright (C) 2003, 2004, 2005, 2007, 2008, 2009, 2010 ;; 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: