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;;
;;        Input Method for Telugu Apple Keyboard Layout
;;
;;    Copyright (c) 2006, Chaitanya Kamisetty <chaitanya@atc.tcs.co.in>
;;
;;    This file is part of the m17n contrib; a sub-part of the m17n
;;    library.
;;
;;    This 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.
;;
;;    This 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 this library; if not, write to the Free Software
;;    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
;;

(input-method te apple)

(description "Apple keyboard layout for Telugu")

(title "తెలుగు")

(map
   (independent
	("0" "0")
	("1" "1")
	("2" "2")
	("3" "3")
	("4" "4")
	("5" "5")
	("6" "6")
	("7" "7")
	("8" "8")
	("9" "9")
	("@" "'")
	("#" "%")
	("\$"	"్పు")
	("%"	"్ర")
	("^" "-")
	("&" "|")
	("*" "`")
	("(" "(")
	(")" ")")
	("-" "×")
	("_" "÷")
	("=" "=")
	("+" "+")
	("\\" "ః")
	("|" "ఁ")
	("}" "!")
	("I" "/")
	("<" ";")
	("." ".")
	(">" "?")
	("g" "ం")
	("G" ":")
	("Q" "క్ష్మి")
	("O" "స్త్ర")
	("P" "ష్ట్ర")
	("{" "క్ష్మ")
	("N" "క్ష్మీ")
	("`" "_")
	("h" "్")
	("H" "్")
	("q" "అ")
	("e" "ఆ")
	("r" "ఇ")
	("w" "ఈ")
	("i" "ఉ")
	("p" "ఊ")
	("W" "ఋ")
	("E" "ౠ")
	("u" "ఎ")
	("o" "ఏ")
	("[" "ఐ")
	("t" "ఒ")
	("y" "ఓ")
	("]" "ఔ")
	)
   (dependent_vowels
	("e" 	"ా")
	("r"	"ి")
	("w"	"ీ")
	("i"	"ు")
	("p"	"ూ")
	("W"	"ృ")
	("E"	"ౄ")
	("u"	"ె")
	("o"	"ే")
	("["	"ై")
	("t"	"ొ")
	("y"	"ో")
	("]"	"ౌ")
	("H"  "్")
	)

(a_matra
	("q" "")
   )

(consonants
	("j" "క")
	("J" "ఖ")
	("x" "గ")
	("X" "ఘ")
	("R" "ఙ")
	("m" "చ")
	("M" "ఛ")
	("/" "జ")
	("?" "ఝ")
	("T" "ఞ")
	("z" "ట")
	("Z" "ఠ")
	("c" "డ")
	("C" "ఢ")
	("L" "ణ")
	("s" "త")
	("S" "థ")
	("d" "ద")
	("D" "ధ")
	("l" "న")
	(";" "ప")
	(":" "ఫ")
	("v" "బ")
	("V" "భ")
	("b" "మ")
	("n" "య")
	("k" "ర")
	("a" "ల")
	("f" "వ")
	("F" "శ")
	("\"" "ష")
	("'" "స")
	("B" "హ")
	("A" "ళ")
	("K" "ఱ")
	("Y" "క్ష")
	("U" "శ్రీ")
	)

;;consonants occuring after a halant 
   (halant_consonants
	("j" (delete @-) "క")
	("J" (delete @-) "ఖ")
	("x" (delete @-) "గ")
	("X" (delete @-) "ఘ")
	("R" (delete @-) "ఙ")
	("m" (delete @-) "చ")
	("M" (delete @-) "ఛ")
	("/" (delete @-) "జ")
	("?" (delete @-) "ఝ")
	("T" (delete @-) "ఞ")
	("z" (delete @-) "ట")
	("Z" (delete @-) "ఠ")
	("c" (delete @-) "డ")
	("C" (delete @-) "ఢ")
	("L" (delete @-) "ణ")
	("s" (delete @-) "త")
	("S" (delete @-) "థ")
	("d" (delete @-) "ద")
	("D" (delete @-) "ధ")
	("l" (delete @-) "న")
	(";" (delete @-) "ప")
	(":" (delete @-) "ఫ")
	("v" (delete @-) "బ")
	("V" (delete @-) "భ")
	("b" (delete @-) "మ")
	("n" (delete @-) "య")
	("k" (delete @-) "ర")
	("a" (delete @-) "ల")
	("f" (delete @-) "వ")
	("F" (delete @-) "శ")
	("\"" (delete @-)  "ష")
	("'" (delete @-) "స")
	("B" (delete @-) "హ")
	("A" (delete @-) "ళ")
	("K" (delete @-) "ఱ")
	("Y" (delete @-) "క్ష")
	("U" (delete @-) "శ్రీ")
   )

;; halant occuring after a dependent vowel
   (halant_after_vowel
	("h" (delete @-) "్" )
	("H" (delete @-) "్" )
   )

(halant
	("h" "్" )
	("H" "్" )
   )

; m17n stuff
 (return
  ((Return)))

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

(state
    (init (consonants (shift first))
	  (independent)
    )
    (first 
	(a_matra (shift second_a))
	(dependent_vowels (set current_vowel @-) (shift second_b))
	(halant (shift third_a))
	(backspace)
    )
    ;;consonat+a matra	
    (second_a
	(halant (shift third_a))
	(backspace)
    )
    ;;state when consonant+dependent vowel occurs
    (second_b
	;;move the dependent vowel to the end and add halant to the base consonant
	(halant_after_vowel (insert current_vowel) (shift fourth))
	(consonants (set current_vowel 0) (shift first))
	(backspace)
    )
    ;;consonant when followed by halant
    (third_a
	(consonants (shift third_b))
	(backspace)
    )	
    ;;state when cosonant+halant+consonant occurs
    ;;further composition of halant+consonant is achieved with third_a and third_b states
    ;;this is required as dependent and independent vowels have same keys and have to be
    ;;identified  by the context 
    (third_b
	(halant (shift third_a))
	(consonants (shift first))
	(backspace)
    )	
    (fourth 
	;;delete the dependent vowel and add at the end after the consonant
	(halant_consonants (insert current_vowel) (shift second_b))
	(backspace)
    )
)