Commit 51f54e78 authored by Kenichi Handa's avatar Kenichi Handa
Browse files

(devanagari-post-read-conversion): Add autoload cookie.

parent 2ccf3102
......@@ -75,6 +75,7 @@
(devanagari-compose-region (point-min) (point-max))
(buffer-string)))
;;;###autoload
(defun devanagari-post-read-conversion (len)
(save-excursion
(save-restriction
......@@ -564,84 +565,84 @@ preferred rule from the sanskrit fonts." )
(defun devanagari-compose-syllable-region (from to)
"Compose devanagari syllable in region FROM to TO."
(let ((glyph-str nil) (cons-num 0) glyph-str-list
(last-halant nil) (preceding-r nil) (last-modifier nil)
(last-char (char-before to)) match-str
glyph-block split-pos)
(last-halant nil) (preceding-r nil) (last-modifier nil)
(last-char (char-before to)) match-str
glyph-block split-pos)
(save-excursion
(save-restriction
;;; *** char-to-glyph conversion ***
;; Special rule 1. -- Last halant must be preserved.
(if (eq last-char ?$,16-(B)
(progn
(setq last-halant t)
(narrow-to-region from (1- to)))
(narrow-to-region from to)
;; note if the last char is modifier.
(if (or (eq last-char ?$,15A(B) (eq last-char ?$,15B(B))
(setq last-modifier t)))
(goto-char (point-min))
;; Special rule 2. -- preceding "r halant" must be modifier.
(when (looking-at "$,15p6-(B.")
(setq preceding-r t)
(goto-char (+ 2 (point))))
;; translate the rest characters into glyphs
(while (re-search-forward dev-char-glyph-regexp nil t)
(setq match-str (match-string 0))
(setq glyph-str
(concat glyph-str
(gethash match-str dev-char-glyph-hash)))
;; count the number of consonant-glyhs.
(if (string-match devanagari-consonant match-str)
(setq cons-num (1+ cons-num))))
;; preceding-r must be attached before the anuswar if exists.
(if preceding-r
(if last-modifier
(setq glyph-str (concat (substring glyph-str 0 -1)
"$,4"'(B" (substring glyph-str -1)))
(setq glyph-str (concat glyph-str "$,4"'(B"))))
(if last-halant (setq glyph-str (concat glyph-str "$,4""(B")))
;;; *** glyph-to-glyph conversion ***
(when (string-match dev-glyph-glyph-regexp glyph-str)
(setq glyph-str
(replace-match (gethash (match-string 0 glyph-str)
dev-glyph-glyph-hash)
nil t glyph-str))
(if (and (> cons-num 1)
(string-match dev-glyph-glyph-2-regexp glyph-str))
(setq glyph-str
(replace-match (gethash (match-string 0 glyph-str)
dev-glyph-glyph-2-hash)
nil t glyph-str))))
;;; *** glyph reordering ***
(while (setq split-pos (string-match "$,4""(B\\|.$" glyph-str))
(setq glyph-block (substring glyph-str 0 (1+ split-pos)))
(setq glyph-str (substring glyph-str (1+ split-pos)))
(setq
glyph-block
(if (string-match dev-glyph-right-modifier-regexp glyph-block)
(sort (string-to-list glyph-block)
(function (lambda (x y)
(< (get-char-code-property x 'composition-order)
(get-char-code-property y 'composition-order)))))
(sort (string-to-list glyph-block)
(function (lambda (x y)
(let ((xo (get-char-code-property x 'composition-order))
(yo (get-char-code-property y 'composition-order)))
(if (= xo 2) nil (if (= yo 2) t (< xo yo)))))))))
(setq glyph-str-list (nconc glyph-str-list glyph-block)))
;; concatenate and attach reference-points.
(setq glyph-str
(cdr
(apply
'nconc
(mapcar
(function (lambda (x)
(list
(or (get-char-code-property x 'reference-point)
'(5 . 3) ;; default reference point.
)
x)))
glyph-str-list))))))
;;; *** char-to-glyph conversion ***
;; Special rule 1. -- Last halant must be preserved.
(if (eq last-char ?$,16-(B)
(progn
(setq last-halant t)
(narrow-to-region from (1- to)))
(narrow-to-region from to)
;; note if the last char is modifier.
(if (or (eq last-char ?$,15A(B) (eq last-char ?$,15B(B))
(setq last-modifier t)))
(goto-char (point-min))
;; Special rule 2. -- preceding "r halant" must be modifier.
(when (looking-at "$,15p6-(B.")
(setq preceding-r t)
(goto-char (+ 2 (point))))
;; translate the rest characters into glyphs
(while (re-search-forward dev-char-glyph-regexp nil t)
(setq match-str (match-string 0))
(setq glyph-str
(concat glyph-str
(gethash match-str dev-char-glyph-hash)))
;; count the number of consonant-glyhs.
(if (string-match devanagari-consonant match-str)
(setq cons-num (1+ cons-num))))
;; preceding-r must be attached before the anuswar if exists.
(if preceding-r
(if last-modifier
(setq glyph-str (concat (substring glyph-str 0 -1)
"$,4"'(B" (substring glyph-str -1)))
(setq glyph-str (concat glyph-str "$,4"'(B"))))
(if last-halant (setq glyph-str (concat glyph-str "$,4""(B")))
;;; *** glyph-to-glyph conversion ***
(when (string-match dev-glyph-glyph-regexp glyph-str)
(setq glyph-str
(replace-match (gethash (match-string 0 glyph-str)
dev-glyph-glyph-hash)
nil t glyph-str))
(if (and (> cons-num 1)
(string-match dev-glyph-glyph-2-regexp glyph-str))
(setq glyph-str
(replace-match (gethash (match-string 0 glyph-str)
dev-glyph-glyph-2-hash)
nil t glyph-str))))
;;; *** glyph reordering ***
(while (setq split-pos (string-match "$,4""(B\\|.$" glyph-str))
(setq glyph-block (substring glyph-str 0 (1+ split-pos)))
(setq glyph-str (substring glyph-str (1+ split-pos)))
(setq
glyph-block
(if (string-match dev-glyph-right-modifier-regexp glyph-block)
(sort (string-to-list glyph-block)
(function (lambda (x y)
(< (get-char-code-property x 'composition-order)
(get-char-code-property y 'composition-order)))))
(sort (string-to-list glyph-block)
(function (lambda (x y)
(let ((xo (get-char-code-property x 'composition-order))
(yo (get-char-code-property y 'composition-order)))
(if (= xo 2) nil (if (= yo 2) t (< xo yo)))))))))
(setq glyph-str-list (nconc glyph-str-list glyph-block)))
;; concatenate and attach reference-points.
(setq glyph-str
(cdr
(apply
'nconc
(mapcar
(function (lambda (x)
(list
(or (get-char-code-property x 'reference-point)
'(5 . 3) ;; default reference point.
)
x)))
glyph-str-list))))))
(compose-region from to glyph-str)))
(provide 'devan-util)
......
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