--- /dev/null
+;; GJR2-OTF.flt -- Font Layout Table for gjr2 OpenType fonts
+;; Copyright (C) 2010 AIST (H15PRO112)
+;; See the end for copying conditions.
+
+(font layouter gjr2-otf nil
+ (version "1.6.0")
+ (font (nil nil unicode-bmp :otf=gjr2)))
+
+;;; <li> GJR2-OTF.flt
+;;;
+;;; For gjr2 OpenType fonts to draw the Gujarati script.
+
+(category
+ ;; X: generic
+ ;; V: independent vowel
+ ;; C: consonant
+ ;; R: RA
+ ;; n: NUKTA
+ ;; H: HALANT
+ ;; m: vowel sign (pre)
+ ;; u: vowel sign (above)
+ ;; b: vowel sign (below)
+ ;; p: vowel sign (post)
+ ;; a: vowel modifier (above)
+ ;; A: vowel modifier (post)
+ ;; N: ZWNJ
+ ;; J: ZWJ
+ (0x0A80 0x0AFF ?X) ; generic
+ (0x0A81 0x0A82 ?a) ; SIGN CANDRABINDU .. ANUSVARA
+ (0x0A83 ?A) ; SIGN VISARGA
+ (0x0A85 0x0A94 ?V) ; LETTER A .. AU
+ (0x0A95 0x0AB9 ?C) ; LETTER KA .. HA
+ (0x0AB0 ?R) ; LETTER RA
+ (0x0ABC ?n) ; SIGN NUKTA
+ (0x0ABE ?p) ; VOWEL SIGN AA
+ (0x0ABF ?m) ; VOWEL SIGN I
+ (0x0AC0 ?p) ; VOWEL SIGN II
+ (0x0AC1 0x0AC4 ?b) ; VOWEL SIGN UU .. VOCALIC RR
+ (0x0AC5 0x0AC8 ?u) ; VOWEL SIGN CANDRA E .. AI
+ (0x0AC9 0x0ACC ?p) ; VOWEL SIGN CANDRA O .. AU
+ (0x0ACD ?H) ; SIGN VIRAMA
+ (0x0AE0 0x0AE1 ?V) ; LETTER VOCALIC RR .. VOCALIC LL
+ (0x0AE2 0x0AE3 ?b) ; VOWEL SIGN VOCALIC L .. VOCALIC LL
+
+ (0x200C ?N) ; ZWNJ
+ (0x200D ?J) ; ZWJ
+ (0x25CC ?X) ; DOTTED CIRCLE
+
+ (rphf ?r)
+ )
+
+;; Stage 0
+;; Syllable identification
+(generator
+ (0
+ (cond
+ ;; Syllables with an independent vowel
+ ("(RH)?Vn?(J?HR)?m?u?b?p?n?a?A?"
+ < | (0 = *) | >)
+
+ ;; Consonant-based syllables
+ ("([CR]n?J?HJ?)*[CR]n?(H[NJ]?|m?u?b?p?n?)a?A?"
+ < | (0 = *) | >)
+
+ ;; Combining marks are displayed with a DOTTED CIRCLE.
+ ("(m)|(n|H|u|b|p|a|A|JHR)"
+ < | (1 =) 0x25CC (2 :otf=gjr2=blwf+) | >)
+
+ ("." =))
+ *))
+
+;; Stage 1
+;; Basic shaping forms and matra reordering
+(generator
+ (0
+ (cond
+ ;; Explicit halant form starting with RA + H + ZWJ
+ (" (RHJ[CRnHJ]+)(HN?a?A?) "
+ | (1 :otf=gjr2=locl,nukt,akhn,rkrf,blwf,half,vatu,cjct+) (2 = *) |)
+
+ ;; Explicit halant form starting with a reph
+ (" (RH)([CRnHJ]+)(HN?a?A?) "
+ | (1 :otf=gjr2=rphf+) (2 :otf=gjr2=locl,nukt,akhn,rkrf,blwf,half,vatu,cjct+)
+ (3 = *) |)
+
+ ;; Other explicit halant forms
+ (" ([CRnHJ]+)(HN?a?A?) "
+ | (1 :otf=gjr2=locl,nukt,akhn,rkrf,blwf,half,vatu,cjct+) (2 = *) |)
+
+ ;; Ordinary syllables starting with RA + H + ZWJ
+ ;; 1 2 3
+ (" (RHJ[CRnHJ]*)(mn?)?(u?b?p?n?a?A?) "
+ ;; |
+ ;; This is an asterisk. (See DEV2-OTF.flt)
+ | (2 = *) (1 :otf=gjr2=locl,nukt,akhn,rkrf,blwf,half,vatu,cjct+)
+ (3 = *) |)
+
+ ;; Ordinary syllables starting with a reph
+ ;; 1 2 3 4
+ (" (RH)([CRnHJV]+)(mn?)?(u?b?p?n?a?A?) "
+ | (3 = *) (1 :otf=gjr2=rphf+)
+ (2 :otf=gjr2=locl,nukt,akhn,rkrf,blwf,half,vatu,cjct+)
+ (4 = *) |)
+
+ ;; Other ordinary syllables
+ ;; 1 2 3
+ (" ([CRnHJV]+)(mn?)?(u?b?p?n?a?A?) "
+ | (2 = *) (1 :otf=gjr2=locl,nukt,akhn,rkrf,blwf,half,vatu,cjct+)
+ (3 = *) |)
+
+ ("." =))
+ *))
+
+;; Stage 2
+;; Final reordering #1 (Move pre-base matra after the last halant)
+(generator
+ (0
+ (cond
+ ;; 1 2 3
+ (" (mn?)([^ ]+HJ?)([^H ]+) "
+ | (2 = *) (1 = *) (3 = *) |)
+
+ ("." =))
+ *))
+
+;; Stage 3
+;; Final reordering #2 (Move reph after the first halant)
+(generator
+ (0
+ (cond
+ ;; Syllables with a reph and an explicit halant
+ ;; 1 2 3 4
+ (" (mn?)?(r)([^H ]+HJ?)([^ ]*) "
+ | (1 = *) (3 = *) (2 =) (4 = *) |)
+
+ ;; A reph without explicit halant
+ ;; 1 2 3 4
+ (" (mn?)?(r)([^aA ]+)(a?A?) "
+ | (1 = *) (3 = *) (2 =) (4 = *) |)
+
+ ("." =))
+ *))
+
+;; Stage 4
+;; Nukta for matra and presentation forms
+(generator
+ (0
+ (cond
+ (" ([^ ]+) "
+ | (1 :otf=gjr2=nukt,pres,abvs,blws,psts,haln,calt+) |)
+
+ ("." =))
+ *))
+
+;; Stage 5
+;; Remove ZWNJ/ZWJ
+(generator
+ (0
+ (cond
+ ("[NJ]")
+
+ ("." =))
+ *))
+
+;; Stage 6
+;; GPOS processing
+(generator
+ (0
+ (cond
+ (" ([^ ]+) "
+ (1 :otf=gjr2=+kern,dist,abvm,blwm))
+
+ ("." =))
+ *))
+
+;; Copyright (C) 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:
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