From: ntakahas Date: Tue, 29 Aug 2006 12:24:47 +0000 (+0000) Subject: Introduce WTT 2.0 level 1 input sequence correction. X-Git-Tag: REL-1-3-4~98 X-Git-Url: http://git.chise.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f2cb203a0279092150ad95e9a0a48711b30fdc63;p=m17n%2Fm17n-db.git Introduce WTT 2.0 level 1 input sequence correction. --- diff --git a/th-kesmanee.mim b/th-kesmanee.mim index dbdcc3b..af3b4d1 100644 --- a/th-kesmanee.mim +++ b/th-kesmanee.mim @@ -23,7 +23,10 @@ (input-method th kesmanee) -(description "Thai input method simulating the Kesmanee keyboard. +(description "Thai input method simulating the Kesmanee keyboard +with WTT 2.0 level 1 input sequence correction. +The correction algorithm follows the one shown in the following + ") (title "กก") @@ -125,10 +128,346 @@ ("}" ",") ("~" "%"))) +(macro + + ;; input global variable : arg1, arg2 + ;; output global variable : ret + (cp + (set ret 0) + (cond + + ;; next = BV1|BV2|BD|AD3|AV1|AV2|AV3, previous = CONS + ((| (= arg2 0x0E31) + (& (>= arg2 0x0E34) (<= arg2 0x0E3A)) + (= arg2 0x0E4E)) + (cond + ((| (& (>= arg1 0x0E01) (<= arg1 0x0E23)) + (= arg1 0x0E25) + (& (>= arg1 0x0E27) (<= arg1 0x0E2E))) + (set ret 1)))) + + ;; next = TONE, previous = CONS|BV1|BV2|AV1|AV2|AV3 + ((& (>= arg2 0x0E48) (<= arg2 0x0E4B)) + (cond + ((| (& (>= arg1 0x0E01) (<= arg1 0x0E23)) + (= arg1 0x0E25) + (& (>= arg1 0x0E27) (<= arg1 0x0E2E)) + (= arg1 0x0E31) + (& (>= arg1 0x0E34) (<= arg1 0x0E39))) + (set ret 1)))) + + ;; next = AD1, previous = CONS|BV1|AV1 + ((& (>= arg2 0x0E4C) (<= arg2 0x0E4D)) + (cond + ((| (& (>= arg1 0x0E01) (<= arg1 0x0E23)) + (= arg1 0x0E25) + (& (>= arg1 0x0E27) (<= arg1 0x0E2E)) + (= arg1 0x0E38) + (= arg1 0x0E34)) + (set ret 1)))) + + ;; next = AD2, previous = TONE| AV3 + ((= arg2 0x0E47) + (cond + ((| (& (>= arg1 0x0E01) (<= arg1 0x0E23)) + (= arg1 0x0E25) + (& (>= arg1 0x0E27) (<= arg1 0x0E2E)) + (= arg1 0x0E35) + (= arg1 0x0E37)) + (set ret 1)))))) + + ;; input global variable : arg1, arg2 + ;; output global variable : ret + ;; This is Level 1 acceptance. + (ac + (set ret 1) + (cond + ((| (= arg2 0x0E31) + (& (>= arg2 0x0E34) (<= arg2 0x0E3A)) + (& (>= arg2 0x0E47) (<= arg2 0x0E4E))) + (set ret 0))))) + (state + (init - (map))) + (map + (delete @<) + (pushback 1) + (cond + ((= @-1 -2) (shift nst)) + (1 (shift st))))) + + ;; no surrounding text + (nst + (t + (set x -1) + (set y -1)) + + (map + (set z @-) + (set arg1 y) + (set arg2 z) + (cp) + (cond + ((= ret 1) ;; CP(y,z) succeeded. + (set x y) + (set y z)) + (1 + (ac) + (cond + ((= ret 1) ;; AC(y,z) succeeded. + (set x y) + (set y z)) + (1 + ;; WTT-based input sequence correction starts here. + + ;; begin + ;; if CP(x,z) then + (set arg1 x) + (set arg2 z) + (cp) + (cond + ((= ret 1) + + ;; if CP(z,y) then + (set arg1 z) + (set arg2 y) + (cp) + (cond + ((= ret 1) + + ;; reorder(y -> zy) + (delete @-) + (delete @-) + (insert z) + (insert y) + (set x z)) + + ;; elif CP(x,y) then + (1 + (set arg1 x) + (set arg2 y) + (cp) + (cond + ((= ret 1) + + ;; replace(y -> z) + (delete @-) + (delete @-) + (insert z) + (set y z)) + + ;; elif y is FV1 and z is TONE then + ((& (| (= y 0x0E30) (= y 0x0E32) (= y 0x0E33)) + (>= z 0x0E48) + (<= z 0x0E4B)) + + ;; reorder(y -> zy) + (delete @-) + (delete @-) + (insert z) + (insert y) + (set x z)) + + ;; else + ;; reject(z) + (1 + (delete @-)) + + ;;endif + )))) + + ;; elif AC(x,z) then + (1 + (set arg1 x) + (set arg2 z) + (ac) + (cond + ((& (= ret 1) + ;; CTRL, NON and CONS should not be replaced. + (| (= y 0x0E24) + (= y 0x0E26) + (& (>= y 0x0E30) (<= y 0x0E3A)) + (& (>= y 0x0E40) (<= y 0x0E45)) + (& (>= y 0x0E47) (<= y 0x0E4E))) + (| (= z 0x0E24) + (= z 0x0E26) + (& (>= z 0x0E30) (<= z 0x0E3A)) + (& (>= z 0x0E40) (<= z 0x0E45)) + (& (>= z 0x0E47) (<= z 0x0E4E)))) + + ;; replace(y -> z) + (delete @-) + (delete @-) + (insert z) + (set y z)) + + ;; else + ;; reject(z) + (1 + (delete @-)) + + ;; endif + ))) + ;; end + + )))) + + ;; Commit the preedit chars as soon as fixed. + (set w @-) + (cond + ;; If the last char is CTRL or NON, we can commit everything. + ((| (& (>= w 0x0000) (<= w 0x0E00)) + (= w 0x0E2F) + (= w 0x0E3F) + (= w 0x0E46) + (>= w 0x0E4F)) + (commit)) + + ;; If the last char is CONS, LV, FV2 or FV3, we can commit + ;; everything but the last. + ((| (& (>= w 0x0E01) (<= w 0x0E2E)) + (& (>= w 0x0E40) (<= w 0x0E45))) + (delete @-) + (commit) + (insert w)) + + ;; If the last char is FV1 (excluding AM) and ... + ((| (= w 0x0E30) (= w 0x0E32)) + (delete @-) + (set v @-) + (cond + + ;; ... the before last is CONS, we can commit other than the + ;; last two. + ((| (& (>= v 0x0E01) (<= v 0x0E23)) + (= v 0x0E25) + (& (>= v 0x0E27) (<= v 0x0E2E))) + (delete @-) + (commit) + (insert v) + (insert w)) + + ;; ... else if the before last is not CONS, we can commit + ;; everything but the last. + (1 + (commit) + (insert w)))) + ))) + + ;; with surrounding text + (st + (map + ;; z = next character + (set z @-) + ;; y = previous character + (set y @-1) + ;; x = character previous to y + (set x @-2) + + (set arg1 y) + (set arg2 z) + (cp) + (cond + ((= ret 1)) ;; CP(y,z) succeeded. + (1 + (ac) + (cond + ((= ret 1)) ;; AC(y,z) succeeded. + (1 + ;; WTT-based input sequence correction starts here. + + ;; begin + ;; if CP(x,z) then + (set arg1 x) + (set arg2 z) + (cp) + (cond + ((= ret 1) + + ;; if CP(z,y) then + (set arg1 z) + (set arg2 y) + (cp) + (cond + ((= ret 1) + + ;; reorder(y -> zy) + (delete @-) + (delete @-1) + (insert z) + (insert y)) + + ;; elif CP(x,y) then + (1 + (set arg1 x) + (set arg2 y) + (cp) + (cond + ((= ret 1) + + ;; replace(y -> z) + (delete @-) + (delete @-1) + (insert z)) + + ;; elif y is FV1 and z is TONE then + ((& (| (= y 0x0E30) (= y 0x0E32) (= y 0x0E33)) + (>= z 0x0E48) + (<= z 0x0E4B)) + + ;; reorder(y -> zy) + (delete @-) + (delete @-1) + (insert z) + (insert y)) + + ;; else + ;; reject(z) + (1 + (delete @-)) + + ;;endif + )))) + + ;; elif AC(x,z) then + (1 + (set arg1 x) + (set arg2 z) + (ac) + (cond + ((& (= ret 1) + ;; CTRL, NON and CONS should not be replaced. + (| (= y 0x0E24) + (= y 0x0E26) + (& (>= y 0x0E30) (<= y 0x0E3A)) + (& (>= y 0x0E40) (<= y 0x0E45)) + (& (>= y 0x0E47) (<= y 0x0E4E))) + (| (= z 0x0E24) + (= z 0x0E26) + (& (>= z 0x0E30) (<= z 0x0E3A)) + (& (>= z 0x0E40) (<= z 0x0E45)) + (& (>= z 0x0E47) (<= z 0x0E4E)))) + + ;; replace(y -> z) + (delete @-) + (delete @-1) + (insert z)) + + ;; else + ;; reject(z) + (1 + (delete @-)) + + ;; endif + ))) + ;; end + + )))) + (commit) + ))) ;; Local Variables: -;; mode: lisp +;; coding: utf-8 +;; mode: emacs-lisp ;; End: