Moved from the parent directory. Add layouter information.

[m17n/m17n-db.git] / FLT / SINH-OTF.flt

diff --git a/FLT/SINH-OTF.flt b/FLT/SINH-OTF.flt
new file mode 100644 (file)
index 0000000..c55089f
--- /dev/null
+++ b/FLT/SINH-OTF.flt
@@ -0,0 +1,131 @@
+;; SINH-OTF.flt -- Font Layout Table for Sinhala OpenType fonts
+;; Copyright (C) 2004, 2005, 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.
+
+;;; <li> SINH-OTF.flt
+;;;
+;;; For Sinhala OpenType fonts to draw Sinhala.
+;;; A Font is available from <http://sinhala.linux.lk/>.
+
+(font layouter sinh-otf nil
+      (font (nil nil unicode-bmp :otf=sinh=akhn)))
+
+(category
+ ;; V : independent vowels
+ ;; C : consonants
+ ;; H : AL-LAKUNA (virama)
+ ;; m : KOMBUVA
+ ;; M : DIGA KOMBUVA
+ ;; b : below-consonant vowel signs
+ ;; u : above-consonant vowel signs
+ ;; p : post-consonant vowel signs
+ ;; q : AELA-PILLA
+ ;; r : GAYANUKITTA
+ ;; s : KOMBUVA HAA AELA-PILLA
+ ;; t : two-part vowel sign
+ ;; a : AVUSVARAYA & VISARGAYA
+ ;; E : else
+ ;; J : ZERO WIDTH JOINER
+ (0x0D80 0x0DFF ?E)
+ (0x0D82 0x0D83 ?a)
+ (0x0D85 0x0D96 ?V)
+ (0x0D96 0x0DC6 ?C)
+ (0x0DCA       ?H)
+ (0x0DCF       ?q)
+ (0x0DD0 0x0DD1 ?p)
+ (0x0DD2 0x0DD3 ?u)
+ (0x0DD4 0x0DD6 ?b)
+ (0x0DD8       ?p)
+ (0x0DD9       ?m)
+ (0x0DDA       ?t)
+ (0x0DDB       ?M)
+ (0x0DDC       ?s)
+ (0x0DDD 0x0DDE ?t)
+ (0x0DDF       ?r)
+ (0x0DF2 0x0DF3 ?p)
+ (0x200D       ?J)
+ )
+
+;; Step 0 : Syllable identification
+(generator
+
+ (0
+  (cond
+   ;; A syllable containing a completely decomposed two-part vowel sign.
+   ("(C(HJ[CR])*)(m(H|qH?|r)a?)"
+    < | (1 otf:sinh=akhn,vatu,pres) (3 = *) | >)
+
+   ;; A syllable containing KOMBUVA HAA AELA-PILLA.
+   ("(C(HJ[CR])*)(s)(H)?(a)?"
+    < | (1 otf:sinh=akhn,vatu,pres) (3 two-part) (4 =) (5 =) | >)
+
+   ;; A syllable with a two-part vowel sign.
+   ("(C(HJ[CR])*)(t)(a)?"
+    < | (1 otf:sinh=akhn,vatu,pres) (3 two-part) (4 =) | >)
+
+   ;; A syllable with a vowel sign and/or a various sign.
+   ("(C(HJ[CR])*)([mMbupqr]a?|a)"
+    < | (1 otf:sinh=akhn,vatu,pres) (3 = *) | >)
+
+   ;; No signs.
+   ("C(HJ[CR])*H?"
+    < | otf:sinh=akhn,vatu,pres | >)
+
+   ;; Independent vowels.
+   ("Va?"
+    < | = * | >)
+
+   ("." =))
+  *)
+
+ ;; Split two-part dependent vowel signs for canonicalisation.
+ (two-part
+  (cond
+   ((0x0DDA)   0x0DD9 0x0DCA)
+   ((0x0DDC)   0x0DD9 0x0DCF)
+   ((0x0DDD)   0x0DD9 0x0DCF 0x0DCA)
+   ((0x0DDE)   0x0DD9 0x0DDF)))
+ )
+
+;; Step 1 : Move pre-consonant signs.
+(generator
+ (0
+  (cond
+   ;; 1             2     3   4   5   6   7   8   9
+   (" ([^ mMbupqr]+)(m|M)?(b)?(u)?(p)?(q)?(r)?(H)?(a)? "
+    | (2 =) (1 = *) (3 =) (4 =) (5 =) (6 =) (7 =) (8 =) (9 =) |)
+   ("." =))
+  *))
+
+;; Step 2 : OTF substitutions.
+(generator
+ (0
+  (cond
+   (" ([^ ]*) "
+    (1 otf:sinh))
+   ("."
+    [ otf:sinh=+ ]))
+  *))
+
+;; Local Variables:
+;; mode: emacs-lisp
+;; End: