;; GUJR-OTF.flt -- Font Layout Table for Gujarati OpenType fonts
-;; Copyright (C) 2004, 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.
+;; Copyright (C) 2004, 2007, 2010 AIST (H15PRO112)
+;; See the end for copying conditions.
-;; 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.
+(font layouter gujr-otf nil
+ (version "1.6.0")
+ (font (nil nil unicode-bmp :otf=gujr)))
;;; <li> GUJR-OTF.flt
;;;
;;; For Gujarati OpenType fonts to draw the Gujarati script.
-(font layouter gujr-otf nil
- (font (nil nil unicode-bmp :otf=gujr=rphf)))
-
(category
- ;; C: consonant (except for RA)
- ;; R: consonant RA
+ ;; 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)
- ;; V: independent vowel
+ ;; a: vowel modifier (above)
+ ;; A: vowel modifier (post)
;; N: ZWNJ
;; J: ZWJ
- ;; X: generic
(0x0A80 0x0AFF ?X) ; generic
- (0x0A81 0x0A82 ?A) ; SIGN CANDRABINDU .. ANUSVARA
- (0x0A83 ?a) ; SIGN VISARGA
- (0x0A85 0x0A94 ?V) ; LETTER AA .. AU
- (0x0A95 0x0AB9 ?C) ; LETTER KA .. HA
+ (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
+ (0x0ABE ?p) ; VOWEL SIGN AA
(0x0ABF ?m) ; VOWEL SIGN I
(0x0AC0 ?p) ; VOWEL SIGN II
- (0x0AC1 0x0AC4 ?b) ; VOWEL SIGN U .. VOCALIC RR
+ (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
+ (0x0AE0 0x0AE1 ?V) ; LETTER VOCALIC RR .. VOCALIC LL
(0x0AE2 0x0AE3 ?b) ; VOWEL SIGN VOCALIC L .. VOCALIC LL
- (0x0964 0x0965 ?X) ; DANDA .. DOUBLE DANDA
+
(0x200C ?N) ; ZWNJ
(0x200D ?J) ; ZWJ
+ (0x25CC ?X) ; DOTTED CIRCLE
+
+ (rphf ?r)
)
-;; Reordering
+;; Stage 0
+;; Syllable identification
+(generator
+ (0
+ (cond
+ ;; Syllables with an independent vowel
+ ("(RH)?(Vn?)((J?HR)?m?u?b?p?n?a?A?)"
+ < | (1 = =) (2 :otf=gujr=nukt+) (3 = *) | >)
+
+ ;; Consonant-based syllables
+ ;;1 23 4
+ ("([CR]n?((J?H|HJ?)[CR]n?)*)(H[NJ]?|m?u?b?p?n?a?A?)"
+ < |
+ (cond
+ (".+HJ$" :otf=gujr=nukt,akhn+)
+ ("(.+)(H)N?$" (1 :otf=gujr=nukt,akhn+) (2 =) 0x200C)
+ (".+" :otf=gujr=nukt,akhn+))
+ | >)
+
+ ;; Combining marks are displayed with a DOTTED CIRCLE.
+ ("m"
+ (cond
+ ((font-facility 0x25CC) < = 0x25CC >)
+ ("." [ = ])))
+ ("[nHubpaA]"
+ (cond
+ ((font-facility 0x25CC) < 0x25CC = >)
+ ("." [ = ])))
+
+ ;; Isolated blwf is displayed with a DOTTED CIRCLE in the next stage.
+ ("(J)(H)(R)"
+ < | (1 =) (3 =) (2 =) | >)
+
+ ("." =))
+ *))
+
+;; Stage 1
+;; Reorder halant for blwf
(generator
(0
(cond
- ;; A syllable containing a vowel sign.
- ;;1 23 45 6 7
- ("(RH)?(([CR]n?H)*[CR]n?)((m)|([bup]))(A?a?)"
- < | (5 =) (2 move-h) (6 =) (1 otf:gujr=rphf+) (7 = *) | >)
-
- ;; A syllable without vowel signs but with a vowel modifier.
- ;;1 23 4
- ("(RH)?(([CR]n?H)*[CR]n?)([Aa])"
- < | (2 move-h) (1 otf:gujr=rphf+) (4 =) | >)
-
- ;; Forced half form. Do not move halant.
- ;;1 23
- ("(RH)?(([CR]n?H)+)J"
- < | (2 = *) (1 otf:gujr=rphf+) | >)
-
- ;; When a syllable ends with a halant, add a ZWNJ explicitly.
- ;;1 23 4
- ("(RH)?(([CR]n?H)*[CR]n?)(H)?N?"
- < | (2 move-h) (1 otf:gujr=rphf+) (4 = 0x200C) | >)
-
- ;; A syllable starting with an independent vowel.
- ("VA?a?"
- < | = * | >)
+ ;; Isolated blwf
+ (" J(RH) "
+ (cond
+ ((font-facility 0x25CC) < 0x25CC :otf=gujr=blwf+ >)
+ (" J(RH) " [ (1 :otf=gujr=blwf+) ])))
+
+ ;; Syllables with an overt halant
+ (" (RHJ?)?([^ ]+)(HN) "
+ | (1 = *) (2 reorder) (3 = =) |)
+
+ ;; Ordinary syllables
+ (" (RHJ?)?([^mubpaA ]+)(m?u?b?p?n?a?A?) "
+ | (1 = *) (2 reorder) (3 = *) |)
("." =))
*)
- (move-h
+ ;; In Devanagari and Gujarati, vattu has a half form. Thus we handle
+ ;; the sequence CHRHC as (CH)half + (RH)blwf + C instead of
+ ;; reordering and interpreting it as C + (RH)blwf + H + C.
+ (reorder
(cond
- ("([CRnH]+)(H)(R)$"
- (1 = *) (3 =) (2 =))
- (".+"
- = *))))
+ ("(.+)(H)(R)$" (1 = *) (3 =) (2 =))
+ (".+" = *)))
+ )
-;; If a syllable ends with a halant and a ZWNJ, render the final
-;; halant explicitly. Do not apply 'blwf' to the initial RA.
+;; Stage 2
+;; Language forms and matra reordering
(generator
(0
(cond
- (" (R)([^N]*)(H)N "
- | (1 =) (2 gsub1) (3 =) |)
- (" (m?R)([^ ]*) "
- | (1 = *) (2 gsub1) (3 = *) |)
- (" ([^N]+)(H)N "
- | (1 gsub1) (2 =) |)
- (" ([^ ]+) "
- | (1 gsub1) |)
+ ;; Overt halant forms
+ (" (RHJ?)?([^ ]+)(HN) "
+ |
+ (1 (cond ("RHJ" :otf=gujr=half+)
+ ("RH" :otf=gujr=rphf+)))
+ (2 (cond ("(.H)J?(.*)" (1 :otf=gujr=half+) (2 lang-forms *))
+ (".+" lang-forms *)))
+ (3 = =) |)
+
+ ;; Other syllables
+ ;; 1 2 3 4 5 6
+ (" (RHJ?)?([^mubpaA ]*)(mn?)?(un?)?(bn?)?(p?n?a?A?) "
+ | (3 = *)
+ (1 (cond ("RHJ" :otf=gujr=half+)
+ ("RH" :otf=gujr=rphf+)))
+ (2 (cond ("(.H)J?(.*)" (1 :otf=gujr=half+) (2 lang-forms *))
+ (".+" lang-forms *)))
+ (5 = *) (4 = *) (6 = *) |)
+
("." =))
*)
- (gsub1
- otf:gujr=nukt,akhn,blwf,half,vatu,pres+))
+ (lang-forms
+ (cond
+ ("(.H)J" (1 :otf=gujr=half+))
+ (".H" :otf=gujr=blwf,half+)
+ ("." =)))
+ )
-;; Apply other features. The 'pres' feature is applied again for
-;; pre-base vowel sign.
+;; Stage 3
+;; Final reordering #1 (Move pre-base matra after the last halant)
+(generator
+ (0
+ (cond
+ ;; 1 2 3
+ (" (mn?)([^ ]+HJ?)([^H ]+) "
+ | (2 = *) (1 = *) (3 = *) |)
+
+ ("." =))
+ *))
+
+;; Stage 4
+;; 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 5
+;; Nukta for matra, vattu and presentation forms
(generator
(0
(cond
(" ([^ ]+) "
- (1 otf:gujr=pres,abvs,blws,psts,haln+abvm,blwm,dist))
- ("."
- [ = ]))
+ | (1 :otf=gujr=nukt,vatu,pres,abvs,blws,psts,haln+) |)
+
+ ("." =))
+ *))
+
+;; Stage 6
+;; Remove ZWNJ/ZWJ
+(generator
+ (0
+ (cond
+ ("[NJ]")
+
+ ("." =))
*))
+;; Stage 7
+;; GPOS processing
+(generator
+ (0
+ (cond
+ (" ([^ ]+) "
+ (1 :otf=gujr=+abvm,blwm,dist))
+
+ ("." =))
+ *))
+
+;; Copyright (C) 2004, 2007, 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:
projects / m17n / m17n-db.git / blobdiff