(state:state-LVT-or-LVTL): Add backspace branch.

[m17n/m17n-db.git] / MIM / vi-telex.mim

diff --git a/MIM/vi-telex.mim b/MIM/vi-telex.mim
index fac52e5..37e6381 100644 (file)
--- a/MIM/vi-telex.mim
+++ b/MIM/vi-telex.mim
@@ -58,13 +58,17 @@ If the value is 1, Backspace key undoes the previous key
   ("oo" ("ôốồổỗộ")) ("OO" ("ÔỐỒỔỖỘ")) ("Oo" ("ÔỐỒỔỖỘ"))
   ("ow" ("ơớờởỡợ")) ("OW" ("ƠỚỜỞỠỢ")) ("Ow" ("ƠỚỜỞỠỢ"))
   ("uw" ("ưứừửữự")) ("UW" ("ƯỨỪỬỮỰ")) ("Uw" ("ƯỨỪỬỮỰ"))
-  ("w"  ("ưứừửữự")) ("W"  ("ƯỨỪỬỮỰ"))
+  ("w"  (cond ((= V-1 0) ("ưứừửữự")) (1 "w"))) ; Works when it's the
+  ("W"  (cond ((= V-1 0) ("ƯỨỪỬỮỰ")) (1 "W"))) ; first vowel (not seư)
   ("ooo" ("oóòỏõọ") ("oóòỏõọ") (set V-2 V-1) (set V-1 ?o))
   ("OOO" ("OÓÒỎÕỌ") ("OÓÒỎÕỌ") (set V-2 V-1) (set V-1 ?O))
   ("Ooo" ("OÓÒỎÕỌ") ("oóòỏõọ") (set V-2 V-1) (set V-1 ?O)))
 
  (consonant-ext
   ("dd" ?đ) ("DD" ?Đ) ("Dd" ?Đ))
+  ;("dd" (cond ((= C-AFTER-V 0) "dd") (1 ?đ))) ; Works when
+  ;("DD" (cond ((= C-AFTER-V 0) "DD") (1 ?Đ))) ; it is the first
+  ;("Dd" (cond ((= C-AFTER-V 0) "Dd") (1 ?Đ)))) ; letter (not ađ)
 
  (tone-mark
   ("z" (set SELECT 0) ?z) ("Z" (set SELECT 0) ?Z)
@@ -97,44 +101,62 @@ If the value is 1, Backspace key undoes the previous key
  (init
   ;; Initialize variables.  C is the initial consonant.  V-N is the
   ;; (N-1)th vowel from the last.  C-AFTER-V is a number of consonants
-  ;; typed after vowel.
+  ;; typed after vowel.  NST is 1 iff surrounding text is not supported.
   (t (set C @-1) (set V-1 0) (set V-2 0) (set V-3 0) (set C-AFTER-V 0)
-     (set SELECT 0))
+     (set SELECT 0) (set NST (= @-0 -2)))
 
-  (consonant (set C @-1))
-  (consonant-ext (set C @-1))
-  (consonant-or-tone-mark (set C @-1))
+  (consonant (set C @-1) (cond (NST (shift after-c))))
+  (consonant-ext (set C @-1) (cond (NST (shift after-c))))
+  (consonant-or-tone-mark
+   (cond ((| (= @-1 ?f) (= @-1 ?j) (= @-1 ?z) ; Invalid beginning consonants
+             (= @-1 ?F) (= @-1 ?J) (= @-1 ?Z)) (shift temporary-escape))
+         (1 (set C @-1) (cond (NST (shift after-c))))))
 
   ;; Mark M remembers the preedit position after the last vowel.
   (vowel (mark M) (set V-2 V-1) (set V-1 @-1) (shift after-v))
   (vowel-ext (mark M) (set V-2 V-1) (set V-1 @-1) (shift after-v))
   (temporary-escape (shift temporary-escape))
-  (permanent-escape (shift escape-in-normal-mode)))
+  (permanent-escape (shift escape-in-normal-mode))
+  (smart-quotes))
+
+ ;; The state shifted to when an initial consonants is typed and
+ ;; surrounding text is not supported.
+ (after-c
+  (vowel (mark M) (set V-2 V-1) (set V-1 @-1) (shift after-v))
+  (vowel-ext (mark M) (set V-2 V-1) (set V-1 @-1) (shift after-v)))
 
  ;; The state shifted to when a vowel is typed.
  (after-v
-  (consonant (shift after-vc))
-  (consonant-ext (shift after-vc))
+  (ending-1st-consonant (handle-mark) (shift after-vc)) ; toans/toasn->toán
   (vowel (mark M) (set V-3 V-2) (set V-2 V-1) (set V-1 @-1)
         (move T) (select 0) (handle-mark) (move M))
   (vowel-ext (mark M) (set V-3 V-2) (set V-2 V-1) (set V-1 @-1)
             (move T) (select 0) (handle-mark) (move M))
+  (ending-1st-notviet-consonant (shift temporary-escape)) ;; See ending-1st-notviet-consonant section in the vi-base.mim 
   (consonant-or-tone-mark (delete @-) (pushback 1) (shift after-t))
   (backspace (delete @-)
             (cond (V-3 (set V-1 V-2) (set V-2 V-3) (set V-3 0)
-                       (cond ((> TPLACE 2) (set SELECT 0))))
+                       (cond ((> TPLACE 2) (set SELECT 0)))
+                       (handle-mark))
                   (V-2 (set V-1 V-2) (set V-2 0)
-                       (cond ((> TPLACE 1) (set SELECT 0))))
+                       (cond ((> TPLACE 1) (set SELECT 0)))
+                       (handle-mark))
                   (1 (shift init)))))
 
  ;; The state shifted to when a consonant is typed after a vowel.
  (after-vc
   (t (set C-AFTER-V 1))
-  (consonant (add C-AFTER-V 1))
-  (consonant-ext (add C-AFTER-V 1))
+  (ending-2nd-consonant
+   (cond ((| (= @-2 ?n) (= @-2 ?c) ; 1st ending consonant must be n/c
+             (= @-2 ?N) (= @-2 ?C)) (add C-AFTER-V 1))
+         (1 (shift temporary-escape))))
+  (ending-1st-notviet-consonant (shift temporary-escape)) ;; Expand notviet-consonant section in the vi-base.mim 
   (consonant-or-tone-mark (delete @-) (pushback 1) (shift after-t))
+  (vowel (shift temporary-escape))      ; There can only be one
+  (vowel-ext (shift temporary-escape))  ; main vowel in a word
   (backspace (delete @-)
             (sub C-AFTER-V 1)
+            (handle-mark)
             (cond ((= C-AFTER-V 0) (shift after-v)))))
 
  ;; The state shifted to when a tone-mark is typed.