(devanagari-composable-pattern): Fixed to

handle ZWNJ and ZWJ.  Use it in composition-function-table for
Devanagari.
(malayalam-composable-pattern): Fix previous change.

1 files changed, 45 insertions, 22 deletions

diff --git a/lisp/language/indian.el b/lisp/language/indian.el
index 2be54df6591..82f24a0272f 100644
--- a/lisp/language/indian.el
+++ b/lisp/language/indian.el
@@ -139,12 +139,34 @@ South Indian language Malayalam is supported in this language environment."))
     regexp))
 
 (defconst devanagari-composable-pattern
-  (concat
-   "\\([अ-औॠॡ][ँं]?\\)\\|[ः।]"
-   "\\|\\("
-   "\\(?:\\(?:[क-हक़-य़]्\\)?\\(?:[क-हक़-य़]्\\)?\\(?:[क-हक़-य़]्\\)?[क-हक़-य़]्\\)?"
-   "[क-हक़-य़]\\(?:्\\|[ा-्ॢॣ]?[ंँ]?\\)?"
-   "\\)")
+  (let ((table
+         '(("V" . "[\u0904-\u0914\u0960-\u0961\u0972]") ; independent vowel
+           ("C" . "[\u0915-\u0939]")             ; consonant
+           ("R" . "\u0930")                      ; RA
+           ("n" . "\u093C")                      ; NUKTA
+           ("H" . "\u094D")                      ; HALANT
+           ("m" . "\u093F")                      ; vowel sign (pre)
+           ("u" . "[\u0945-\u0948\u0955]")       ; vowel sign (above)
+           ("b" . "[\u0941-\u0944\u0962-\u0963]") ; vowel sign (below)
+           ("p" . "[\u093E\u0940\u0949-\u094C]") ; vowel sign (post)
+           ("A" . "[\u0900-\u0902\u0953-\u0954]") ; vowel modifier (above)
+           ("a" . "\u0903")                      ; vowel modifier (post) 
+           ("S" . "\u0951")                      ; stress sign (above)
+           ("s" . "\u0952")                      ; stress sign (below)
+           ("J" . "\u200D")                      ; ZWJ
+           ("N" . "\u200C")                      ; ZWNJ
+           ("X" . "[\u0900-\u097F]"))))          ; all coverage
+    (indian-compose-regexp
+     (concat
+      ;; syllables with an independent vowel, or
+      "\\(?:RH\\)?Vn?m?b?u?p?n?A?s?S?a?\\|"
+      ;; consonant-based syllables, or
+      "\\(?:Cn?J?HJ?\\)*Cn?\\(?:H[NJ]?\\|m?b?u?p?n?A?s?S?a?\\)\\|"
+      ;; special consonant form, or
+      "JHR\\|"
+      ;; any other singleton characters
+      "X")
+     table))
   "Regexp matching a composable sequence of Devanagari characters.")
 
 (defconst tamil-composable-pattern
@@ -165,23 +187,24 @@ South Indian language Malayalam is supported in this language environment."))
   "Regexp matching a composable sequence of Kannada characters.")
 
 (defconst malayalam-composable-pattern
-  (let ((table '(("V" . "[\u0D05-\u0D14\u0D60-\u0D61]") ; independent vowel
-                 ("C" . "[\u0D15-\u0D39]")              ; consonant 
-                 ("m" . "[\u0D46-\u0D48\u0D4A-\u0D4C]") ; prebase matra
-                 ("p" . "[\u0D3E-\u0D44\u0D57]") ; postname matra
-                 ("b" . "[\u0D62-\u0D63]")       ; belowbase matra
-                 ("a" . "[\u0D02-\u0D03]")       ; abovebase sign
-                 ("H" . "്")                   ; virama sign 
-                 ("N" . "\u200D")                ; ZWJ
-                 ("J" . "\u200C")                ; ZWNJ
-                 ("X" . "[\u0D00-\u0D7F]")))) ; all coverage
+  (let ((table
+         '(("V" . "[\u0D05-\u0D14\u0D60-\u0D61]") ; independent vowel
+           ("C" . "[\u0D15-\u0D39]")              ; consonant 
+           ("m" . "[\u0D46-\u0D48\u0D4A-\u0D4C]") ; prebase matra
+           ("p" . "[\u0D3E-\u0D44\u0D57]")        ; postbase matra
+           ("b" . "[\u0D62-\u0D63]")              ; belowbase matra
+           ("a" . "[\u0D02-\u0D03]")              ; abovebase sign
+           ("H" . "\u0D4D")                       ; virama sign 
+           ("N" . "\u200D")                       ; ZWJ
+           ("J" . "\u200C")                       ; ZWNJ
+           ("X" . "[\u0D00-\u0D7F]"))))           ; all coverage
     (indian-compose-regexp
      (concat
-      ;; consonant-based syllables
-      "\\(CJ?HJ?\\)*C\\(H[NJ]?\\|m?b?p?a?\\)\\|"
-      ;; syllables with an independent vowel
-      "V\\(J?HC\\)?m?b?p?a?\\|"
-      ;; special consonant form
+      ;; syllables with an independent vowel, or
+      "V\\(?:J?HC\\)?m?b?p?a?\\|"
+      ;; consonant-based syllables, or
+      "\\(?:CJ?HJ?\\)\\{0,4\\}C\\(?:H[NJ]?\\|m?b?p?a?\\)\\|"
+      ;; special consonant form, or
       "JHC\\|"
       ;; any other singleton characters
       "X")
@@ -189,7 +212,7 @@ South Indian language Malayalam is supported in this language environment."))
   "Regexp matching a composable sequence of Malayalam characters.")
 
 (let ((script-regexp-alist
-       `((devanagari . "[\x900-\x97F\x200C\x200D]+")
+       `((devanagari . ,devanagari-composable-pattern)
          (bengali . "[\x980-\x9FF\x200C\x200D]+")
          (gurmukhi . "[\xA00-\xA7F\x200C\x200D]+")
          (gujarati . "[\xA80-\xAFF\x200C\x200D]+")