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- ;; GUJR-OTF.flt -- Font Layout Table for Gujarati OpenType fonts
- ;; Copyright (C) 2004, 2007 AIST (H15PRO112)
- ;; See the end for copying conditions.
-
- (font layouter gujr-otf nil
- (font (nil nil unicode-bmp :otf=gujr=rphf)))
-
- ;;; <li> GUJR-OTF.flt
- ;;;
- ;;; For Gujarati OpenType fonts to draw the Gujarati script.
-
- (category
- ;; C: consonant (except for RA)
- ;; R: consonant 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
- ;; 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
- (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 U .. 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
- (0x0964 0x0965 ?X) ; DANDA .. DOUBLE DANDA
- (0x200C ?N) ; ZWNJ
- (0x200D ?J) ; ZWJ
- )
-
- ;; Syllable identification and reordering.
- (generator
- (0
- (cond
- ;; A syllable containing a vowel sign.
- ;;1 2 34 5 6
- ("([CR]n?(HJ?[CR]n?)*)((m)|(b|u|p))(A|a)?"
- < | (4 =) (1 move-h) (5 =) (1 reph) (6 =) | >)
-
- ;; A syllable without vowel signs but with a vowel modifier.
- ;;1 2 3
- ("([CR]n?(HJ?[CR]n?)*)(A|a)"
- < | (1 move-h) (1 reph) (3 =) | >)
-
- ;; No marks at all. Need further anylysis.
- ("[CR]n?(HJ?[CR]n?)*(H(N|J)?)?"
- < | (0 nomarks) | >)
-
- ;; A syllable starting with an independent vowel.
- ("V(A|a)?"
- < | = * | >)
-
- ("." =))
- *)
-
- (move-h
- (cond
- ("RH(.+)(H)(R)$"
- (1 = *) (3 =) (2 =))
- ("RH(.+)"
- (1 = *))
-
- ("(.+)(H)(R)$"
- (1 = *) (3 =) (2 =))
- (".+"
- = *)))
-
- (reph
- (cond
- ("(RH).*"
- (1 otf:gujr=rphf+))))
-
- (del-reph
- (cond
- ("(RH)?(.*)"
- (2 = *))))
-
- (nomarks
- (cond
- ;; Ending with a Halant and a ZWJ.
- (".+HJ$"
- (0 del-reph) (0 reph))
-
- ;; Ending with a Halant and an optional ZWNJ. Add ZWNJ explicitly.
- ("(.+)(H)N?$"
- (1 move-h) (1 reph) (2 =) 0x200C)
-
- ;; Ending with a consonant.
- (".+"
- (0 move-h) (0 reph))))
- )
-
- ;; Apply GSUB features. If a syllable ends with a halant and a ZWNJ,
- ;; render the final halant explicitly. Do not apply 'blwf' to the
- ;; initial RA.
- (generator
- (0
- (cond
- (" (R)([^ ]*)(H)N "
- | (1 =) (2 gsub) (3 =) |)
- (" (m?R)([^ ]*) "
- | (1 otf:gujr=pres+) (2 gsub) |)
-
- (" ([^ ]+)(H)N "
- | (1 gsub) (2 =) |)
- (" ([^ ]+) "
- | (1 gsub) |)
-
- ("." =))
- *)
-
- (gsub
- (cond
- ("([^J]*)J(.*)"
- (1 otf:gujr=nukt,akhn,blwf,half,vatu,pres+) (2 gsub))
- (".*"
- otf:gujr=nukt,akhn,blwf,half,vatu,pres+)))
- )
-
- ;; Apply other features.
- (generator
- (0
- (cond
- (" ([^ ]+) "
- (1 otf:gujr=abvs,blws,psts,haln+abvm,blwm,dist))
- ("."
- [ = ]))
- *))
-
- ;; 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.
-
- ;; 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:
-