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;; bn-itrans.mim -- Bengali input method with ITRANS method
;; Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009
;;   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.

(input-method bn itrans)

(description "Bengali input method by ITRANS transliteration.

Itrans Bengali Keymap Layout created by Avinash Chopde in
accordance with the details in the following link:

http://www.aczoom.com/itrans/beng/node4.html

Key Summary:

The consonant alphabets are represented as half-characters by
default i.e. k = ক্ . To complete the character please use 'a'
representing 'অ' i.e. ka=ক. Consonant conjuncts can be created by
writing the consonant characters in sequential order. To complete
the conjunct either 'অ' or any other dependent vowel [অ (a),
া(aa), ি(i), ী(ii), ু(u), ূ(uu), ে(e), ৈ(ai), ো (o), ৌ (au)] needs
to be added at the end.

E.g. ক্রিয়া = k+r+i+Y+A

To write 'Khaanda-ta' (ৎ) use the key combination : t.h

Detailed instructions for typing are available at the above mentioned link

The following keysequences are not defined in the mentioned page,
but added for users' sake:

Ch JN shh yh dny LLi L^i RRI R^I LLI L^I # $ ^ * ]
Shift-SPC Control-SPC
")

(title "ক")

(map
 (starter
  (".") ("~") ("#") ("$") ("^") ("*") ((S-\ )) ((C-@))
  ("0") ("1") ("2") ("3") ("4")
  ("5") ("6") ("7") ("8") ("9")
  ("A") ("C") ("D") ("G") ("H") ("I") ("J") ("K") ("L")
  ("M") ("N") ("O") ("R") ("S") ("T") ("U") ("Y")
  ("a") ("b") ("c") ("d") ("e") ("f") ("g") ("h") ("i")
  ("j") ("k") ("l") ("m") ("n") ("o") ("p") ("q") ("r")
  ("s") ("t") ("u") ("v") ("w") ("x") ("y") ("z")
  ((KP_1)) ((KP_2)) ((KP_3)) ((KP_4)) ((KP_5))
  ((KP_6)) ((KP_7)) ((KP_8)) ((KP_9)) ((KP_0)))

(consonant
  ("k" "ক্")
  ("kh" "খ্")
  ("g" "গ্")
  ("gh" "ঘ্")
  ("~N" "ঙ্")
  ("N^" "ঙ্")
  ("ch" "চ্")
  ("chh" "ছ্")
  ("Ch" "ছ্")				; not in ITRANS Bengali table
  ("j" "জ্")
  ("jh" "ঝ্")
  ("~n" "ঞ্")
  ("n^" "ঞ্")
  ("JN" "ঞ্")				; not in ITRANS Bengali table
  ("T" "ট্")
  ("Th" "ঠ্")
  ("D" "ড্")
  ("Dh" "ঢ্")
  ("N" "ণ্")
  ("t" "ত্")
  ("th" "থ্")
  ("d" "দ্")
  ("dh" "ধ্")
  ("n" "ন্")
  ("p" "প্")
  ("ph" "ফ্")
  ("b" "ব্")
  ("bh" "ভ্")
  ("m" "ম্")
  ("J" "য্")
  ("y" "য্")
  ("r" "র্")
  ("l" "ল্")
  ("sh" "শ্")
  ("Sh" "ষ্")
  ("shh" "ষ্")				; not in ITRANS Bengali table
  ("s" "স্")
  ("h" "হ্")
  (".D" "ড়্")
  (".Dh" "ঢ়্")
  ("Y" "য়্")
  ("yh" "য়্")				; not in ITRANS Bengali table
  ("GY" "জ্ঞ্")
  ("dny" "জ্ঞ্")			; not in ITRANS Bengali table
  ("x" "ক্ষ্"))

(independent
  ("a" "অ")
  ("aa" "আ")
  ("A" "আ")
  ("i" "ই")
  ("ii" "ঈ")
  ("I" "ঈ")
  ("u" "উ")
  ("uu" "ঊ")
  ("U" "ঊ")
  ("RRi" "ঋ")
  ("R^i" "ঋ")
  ("e" "এ")
  ("ai" "ঐ")
  ("o" "ও")
  ("au" "ঔ")
  (".N" "ঁ")
  (".n" "ং")
  ("M" "ং")				; not in ITRANS Bengali table
  ("H" "ঃ")
  (".h" "্")
  ("t.h" "ৎ")
  ("0" "০")
  ("1" "১")
  ("2" "২")
  ("3" "৩")
  ("4" "৪")
  ("5" "৫")
  ("6" "৬")
  ("7" "৭")
  ("8" "৮")
  ("9" "৯")
  ("]" "়")				; not in ITRANS Bengali table
  ((KP_1) "১")
  ((KP_2) "২")
  ((KP_3) "৩")
  ((KP_4) "৪")
  ((KP_5) "৫")
  ((KP_6) "৬")
  ((KP_7) "৭")
  ((KP_8) "৮")
  ((KP_9) "৯")
  ((KP_0) "০")
  ((S-\ ) "‌")				; not in ITRANS Bengali table
  ((C-@) "‍"))				; not in ITRANS Bengali table

(dependent
  ("a" (delete @-) "")
  ("aa" (delete @-) "া")
  ("A" (delete @-) "া")
  ("i" (delete @-) "ি")
  ("ii" (delete @-) "ী")
  ("I" (delete @-) "ী")
  ("u" (delete @-) "ু")
  ("uu" (delete @-) "ূ")
  ("U" (delete @-) "ূ")
  ("RRi" (delete @-) "ৃ")
  ("R^i" (delete @-) "ৃ")
  ("e" (delete @-) "ে")
  ("ai" (delete @-) "ৈ")
  ("o" (delete @-) "ো")
  ("au" (delete @-) "ৌ"))

(return
  ((Return)))

(backspace
  ((BackSpace) (undo))))

(state
 (init
  (starter (pushback 1) (shift intermediate)))

(intermediate
  (consonant (shift second))
  (independent (shift init))
  (backspace)
  (return (shift init)))

(second
  (consonant)
  (dependent (shift init))
  (backspace)
  (return (shift init))))

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