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;; si-phonetic-dynamic.mim -- Sinhala phonetic dynamic keymap
;; Copyright (C) 2007-2011  Harshula Jayasuriya <harshula@gmail.com>

;; This program is free software; you can redistribute it and/or
;; modify it under the terms of the GNU General Public License
;; as published by the Free Software Foundation; either version 2
;; of the License, or (at your option) any later version.

;; This program 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 General Public License for more details.

;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA  02110-1301, USA.

;; m17n Keymap file for Sinhala (Sri Lanka) (2007-07-08)
;; Maintainer: Harshula Jayasuriya <harshula@gmail.com>
;; Last Updated: 2011-12-05
;; This is a phonetic dynamic mapping for a standard US-English keyboard
;; (qwerty)
;; http://www.nongnu.org/sinhala/doc/keymaps/sinhala-keyboard_4.html

(input-method si phonetic-dynamic)

(description "Sinhala phonetic dynamic input method:
  <http://www.nongnu.org/sinhala/doc/keymaps/sinhala-keyboard_4.html>"
)

(title "සි (Phonetic Dynamic)")

(macro
 (delete-al-zwj
  (cond
   ((& (= @-2 0x0DCA) (= @-1 0x200D))
    (delete @-2)
    ;; repaya
    (cond
     ((= @-1 0x0DBB)
      (delete @-1)
     )
    )
   )
  )
 )

(insert-vowel
  (cond
   ((& (>= @-1 0x0D9A) (<= @-1 0xDC6))
    (cond
     ((= c 0x0D85) "්")	; 0x0dca - al-lakuna
     ((= c 0x0D86) "ා")	; 0x0dcf - aela-pilla (aa)
     ((= c 0x0D87) "ැ")	; 0x0dd0 - ketti aeda-pilla (ae)
     ((= c 0x0D88) "ෑ")	; 0x0dd1 - diga aeda-pilla (aae)
     ((= c 0x0D89) "ි")	; 0x0dd2 - ketti is-pilla (i)
     ((= c 0x0D8A) "ී")	; 0x0dd3 - diga is-pilla (ii)
     ((= c 0x0D8B) "ු")	; 0x0dd4 - ketti paa-pilla (u)
     ((= c 0x0D8C) "ූ")	; 0x0dd6 - diga paa-pilla (uu)
     ((= c 0x0D8D) "ෘ")	; 0x0dd8 - gaetta-pilla (r)
     ((= c 0x0D8E) "ෲ")	; 0x0df2 - diga gaetta-pilla (rr)
     ((= c 0x0D8F) "ෟ")	; 0x0ddf - gayanukitta (l)
     ((= c 0x0D90) "ෳ")	; 0x0df3 - diga gayanukitta (ll)
     ((= c 0x0D91) "ෙ")	; 0x0dd9 - kombuva (e)
     ((= c 0x0D92) "ේ")	; 0x0dda - diga kombuva (ee)
     ((= c 0x0D93) "ෛ")	; 0x0ddb - kombu deka (ai)
     ((= c 0x0D94) "ො")	; 0x0ddc - kombuva haa aela-pilla (o)
     ((= c 0x0D95) "ෝ")	; 0x0ddd - kombuva haa diga aela-pilla (oo)
     ((= c 0x0D96) "ෞ")	; 0x0dde - kombuva haa gayanukitta (au)
    )
   )
   (1
    (insert c)
   )
  )
 )

)

(map
 (phon
  ((A-n) "ං")		; 0x0d82 - anusvaraya (anusvara)
  ((G-n) "ං")		; 0x0d82 - anusvaraya (anusvara)
  ("H" "ඃ")		; 0x0d83 - visargaya (visarga)

("a" (set c 0x0D85) (insert-vowel))	; 0x0d85 - ayanna (a)
  ("A" (set c 0x0D86) (insert-vowel))	; 0x0d86 - aayanna (aa)
  ("w" (set c 0x0D87) (insert-vowel))	; 0x0d87 - aeyanna (ae)
  ("W" (set c 0x0D88) (insert-vowel))	; 0x0d88 - aeeyanna (aee)
  ("i" (set c 0x0D89) (insert-vowel))	; 0x0d89 - iyanna (i)
  ("I" (set c 0x0D8A) (insert-vowel))	; 0x0d8a - iiyanna (ii)
  ("u" (set c 0x0D8B) (insert-vowel))	; 0x0d8b - uyanna (u)
  ("U" (set c 0x0D8C) (insert-vowel))	; 0x0d8c - uuyanna (uu)
  ("q" (set c 0x0D8D) (insert-vowel))	; 0x0d8d - iruyanna (iru)
  ("Q" (set c 0x0D8E) (insert-vowel))	; 0x0d8e - iruuyanna (iruu)
  ((A-l) (set c 0x0D8F) (insert-vowel))	; 0x0d8f - iluyanna (ilu)
  ((G-l) (set c 0x0D8F) (insert-vowel))	; 0x0d8f - iluyanna (ilu)
  ((A-L) (set c 0x0D90) (insert-vowel))	; 0x0d90 - iluuyanna (iluu)
  ((G-L) (set c 0x0D90) (insert-vowel))	; 0x0d90 - iluuyanna (iluu)
  ("e" (set c 0x0D91) (insert-vowel))	; 0x0d91 - eyanna (e)
  ("E" (set c 0x0D92) (insert-vowel))	; 0x0d92 - eeyanna (ee)
  ((A-e) (set c 0x0D93) (insert-vowel))	; 0x0d93 - aiyanna (ai)
  ((G-e) (set c 0x0D93) (insert-vowel))	; 0x0d93 - aiyanna (ai)
  ("o" (set c 0x0D94) (insert-vowel))	; 0x0d94 - oyanna (o)
  ("O" (set c 0x0D95) (insert-vowel))	; 0x0d95 - ooyanna (oo)
  ((A-o) (set c 0x0D96) (insert-vowel))	; 0x0d96 - auyanna (au)
  ((G-o) (set c 0x0D96) (insert-vowel))	; 0x0d96 - auyanna (au)

("k" "ක")		; 0x0d9a - alpapraana kayanna (ka)
  ("K" "ඛ")		; 0x0d9b - mahaapraana kayanna (kha)
  ("g" "ග")		; 0x0d9c - alpapraana gayanna (ga)
  ("G" "ඝ")		; 0x0d9d - mahaapraana gayanna (gha)
  ((A-N) "ඞ")		; 0x0d9e - kantaja naasikyaya (nga)
  ((G-N) "ඞ")		; 0x0d9e - kantaja naasikyaya (nga)
  ((A-g) "ඟ")		; 0x0d9f - sanyaka gayanna (nnga)
  ((G-g) "ඟ")		; 0x0d9f - sanyaka gayanna (nnga)
  ("c" "ච")		; 0x0da0 - alpapraana cayanna (ca)
  ("C" "ඡ")		; 0x0da1 - mahaapraana cayanna (cha)
  ("j" "ජ")		; 0x0da2 - alpapraana jayanna (ja)
  ("J" "ඣ")		; 0x0da3 - mahaapraana jayanna (jha)
  ("z" "ඤ")		; 0x0da4 - taaluja naasikyaya (nya)
  ("Z" "ඥ")		; 0x0da5 - taaluja sanyooga naasikyaya (jnya)
  ((A-j) "ඦ")		; 0x0da6 - sanyaka jayanna (nyja)
  ((G-j) "ඦ")		; 0x0da6 - sanyaka jayanna (nyja)
  ((A-t) "ට")		; 0x0da7 - alpapraana ttayanna (tta)
  ((G-t) "ට")		; 0x0da7 - alpapraana ttayanna (tta)
  ((A-T) "ඨ")		; 0x0da8 - mahaapraana ttayanna (ttha)
  ((G-T) "ඨ")		; 0x0da8 - mahaapraana ttayanna (ttha)
  ((A-d) "ඩ")		; 0x0da9 - alpapraana ddayanna (dda)
  ((G-d) "ඩ")		; 0x0da9 - alpapraana ddayanna (dda)
  ((A-D) "ඪ")		; 0x0daa - mahaapraana ddayanna (ddha)
  ((G-D) "ඪ")		; 0x0daa - mahaapraana ddayanna (ddha)
  ("N" "ණ")		; 0x0dab - muurdhaja nayanna (nna)
  ("X" "ඬ")		; 0x0dac - sanyaka ddayanna (nndda)
  ("t" "ත")		; 0x0dad - alpapraana tayanna (ta)
  ("T" "ථ")		; 0x0dae - mahaapraana tayanna (tha)
  ("d" "ද")		; 0x0daf - alpapraana dayanna (da)
  ("D" "ධ")		; 0x0db0 - mahaapraana dayanna (dha)
  ("n" "න")		; 0x0db1 - dantaja nayanna (na)
  ("x" "ඳ")		; 0x0db3 - sanyaka dayanna (nda)
  ("p" "ප")		; 0x0db4 - alpapraana payanna (pa)
  ("P" "ඵ")		; 0x0db5 - mahaapraana payanna (pha)
  ("b" "බ")		; 0x0db6 - alpapraana bayanna (ba)
  ("B" "භ")		; 0x0db7 - mahaapraana bayanna (bha)
  ("m" "ම")		; 0x0db8 - mayanna (ma)
  ("M" "ඹ")		; 0x0db9 - amba bayanna (mba)
  ("y" "ය")		; 0x0dba - yayanna (ya)
  ("r" "ර")		; 0x0dbb - rayanna (ra)
  ("l" "ල")		; 0x0dbd - dantaja layanna (la)
  ("v" "ව")		; 0x0dc0 - vayanna (va)
  ("S" "ශ")		; 0x0dc1 - taaluja sayanna (sha)
  ((A-s) "ෂ")		; 0x0dc2 - muurdhaja sayanna (ssa)
  ((G-s) "ෂ")		; 0x0dc2 - muurdhaja sayanna (ssa)
  ("s" "ස")		; 0x0dc3 - dantaja sayanna (sa)
  ("h" "හ")		; 0x0dc4 - hayanna (ha)
  ("L" "ළ")		; 0x0dc5 - muurdhaja layanna (lla)
  ("f" "ෆ")		; 0x0dc6 - fayanna (fa)

((A-.) "෴")		; 0x0df4 - kunddaliya (punctuation)
  ((G-.) "෴")		; 0x0df4 - kunddaliya (punctuation)

("R" "්‍ර")		;  0x0dca,0x200d,0x0dbb - rakaaranshaya
  ("Y" "්‍ය")		;  0x0dca,0x200d,0x0dba - yansaya
  ((A-r) "ර්‍")		;  0x0dbb,0x0dca,0x200d - repaya
  ((G-r) "ර්‍")		;  0x0dbb,0x0dca,0x200d - repaya

((A-,) "්‍")		; 0x0dca,0x200d - join - conjunct letters cons 0DCA ZWJ cons
  ((G-,) "්‍")		; 0x0dca,0x200d - join - conjunct letters cons 0DCA ZWJ cons
  ((A-/) "‍්")		; 0x200d,0x0dca - touch - cons ZWJ 0DCA cons
  ((G-/) "‍්")		; 0x200d,0x0dca - touch - cons ZWJ 0DCA cons

;; Shift-space and Alt-space
  ((S-\ ) " ")		; 0x00a0 - no-break space
  ((A-\ ) "‌")		; 0x200c - ZWNJ
  ((G-\ ) "‌")		; 0x200c - ZWNJ

((BackSpace)
   (cond
    ;; rakaaranshaya and yansaya
    ((| (= @-1 0x0DBA) (= @-1 0x0DBB))
     (delete @-1)
     (delete-al-zwj)
    )
    ;; touch
    ((& (= @-2 0x200D) (= @-1 0x0DCA))
     (delete @-2)
    )
    ;; join
    ((= @-1 0x200D)
     (delete-al-zwj)
    )
    (1
     (delete @-1)
    )
   )
  )
 )
)

(state
 (init
  (phon)
 )
)