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+;; TML-OTF.flt -- Font Layout Table for Tamil OpenType fonts
+;; Copyright (C) 2004
+;;   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., 59 Temple Place, Suite 330, Boston, MA
+;; 02111-1307, USA.
+
+;;; <li> TML-OTF.flt
+;;;
+;;; For Tamil OpenType fonts to draw Tamil.
+;;; Fonts are available from <http://sourceforge.net/projects/tamillinux/>.
+
+(category
+ ;; C: general consonant
+ ;; V: independent vowel
+ ;; H: HALANT
+ ;; m: MATRA (pre)
+ ;; u: MATRA (above)
+ ;; b: MATRA (below)
+ ;; p: MATRA (post)
+ ;; A: vowel modifier (above)
+ ;; a: vowel modifier (post)
+ ;; N: ZWNJ (ZERO WIDTH NON-JOINER)
+ ;; J: ZWJ (ZERO WIDTH JOINER)
+ ;; E: ELSE
+ ;;
+ (0x200C       ?N)                     ; ZWNJ
+ (0x200D       ?J)                     ; ZWJ
+ (0x0964       ?E)                     ; DANDA
+ (0x0965       ?E)                     ; DOUBLE DANDA
+ (0x0B80 0x0BFF        ?E)                     ; ELSE
+ (0x0B85 0x0B94        ?V)                     ; LETTER AA .. LETTER AU
+ (0x0B95 0x0BB9 ?C)                    ; LETTER KA .. LETTER HA
+ (0x0BBE       ?p)                     ; VOWEL SIGN AA (post)
+ (0x0BBF       ?p)                     ; VOWEL SIGN I (post)
+ (0x0BC0       ?u)                     ; VOWEL SIGN II (above)
+ (0x0BC1       ?b)                     ; VOWEL SIGN U (below)
+ (0x0BC2       ?b)                     ; VOWEL SIGN UU (below)
+ (0x0BC6 0x0BC8        ?m)                     ; VOWEL SIGN E, EE, AI (pre)
+ (0x0BCA 0x0BCC        ?t)                     ; VOWEL SIGN O, OO, AU (two-part)
+ (0x0BCD       ?H)                     ; VIRAMA
+ (0x0BD7       ?p)                     ; AU LENGTH MARK (post)
+ )
+
+;; Step 1 : Syllable identification.
+(generator
+ (0
+  (cond
+   ;; A syllable ending with a two-part vowel sign.
+   ("((CH)*C)(t)"
+    < | (1 otf:taml=akhn) (3 two-part) | >)
+
+   ;; A syllable ending with a vowel sign.
+   ("((CH)*C)([mubp])"
+    < | (1 otf:taml=akhn) (3 =) | >)
+
+   ;; No vowel sign.
+   ("(CH)*CH?"
+    < | otf:taml=akhn | >)
+
+   ;; A variation of AU.
+   ((0x0B92 0x0BD7)
+    0x0B94)
+
+   ("." =))
+  *)
+
+ (two-part
+  (cond
+   ((0x0BCA)
+    0x0BC6 0x0BBE)
+   ((0x0BCB)
+    0x0BC7 0x0BBE)
+   ((0x0BCC)
+    0x0BC6 0x0BD7))))
+
+;; Step 2 : Matra movements.
+(generator
+ (0
+  (cond
+   (" ([^ mubp]*)([^ mubp])(m)?([ubp])? "
+    | (1 = *) (3 =) (2 =) (4 =) |)
+   ("." =))
+  *))
+
+;; Step 3 : OTF substitutions and positionings.
+(generator
+ (0
+  (cond
+   (" ([^ ]*) "
+    (1 otf:taml))
+   ("."
+    [ otf:gujr=+ ]))
+  *))
+
+;; Local Variables:
+;; mode: emacs-lisp
+;; End: