procyberian/emacs
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

tibetan.el: compute constants at compile time, optimise regexps

Browse source 
* lisp/language/tibetan.el (tibetan-subjoined-transcription-alist)
(tibetan-regexp, tibetan-precomposed-regexp)
(tibetan-precomposition-rule-regexp):
Evaluate at compile time.  Use regexp-opt.
This commit is contained in:
Mattias Engdegård 2023-08-16 17:49:22 +02:00
parent 508d24c8b9
commit 898edb1816
1 changed files with 18 additions and 14 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

32
lisp/language/tibetan.el
View file

@ -126,6 +126,7 @@
;;; Definitions of conversion data.
;;;
(eval-and-compile
;;; alists for tibetan char <-> transcription conversion
;;; longer transcription should come first
@ -333,6 +334,7 @@
(defconst tibetan-subjoined-transcription-alist
(eval-when-compile
(sort
(copy-sequence
'(("+k" . "ྐ")
@ -381,7 +383,7 @@
("+Y" . "ྻ") ;; fixed form subscribed YA
("+R" . "ྼ") ;; fixed form subscribed RA
))
(lambda (x y) (> (length (car x)) (length (car y))))))
(lambda (x y) (> (length (car x)) (length (car y)))))))
;;;
;;; alist for Tibetan base consonant <-> subjoined consonant conversion.
@ -557,32 +559,34 @@
("སྦ" . "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>")
("སྨ" . "<EFBFBD><EFBFBD><EFBFBD><EFBFBD>")))
) ; eval-and-compile
(defconst tibetan-regexp
(mapconcat (lambda (x) (regexp-quote (car x)))
(append tibetan-precomposed-transcription-alist
tibetan-consonant-transcription-alist
tibetan-vowel-transcription-alist
tibetan-modifier-transcription-alist
tibetan-subjoined-transcription-alist)
"\\|")
(eval-when-compile
(regexp-opt (mapcar #'car
(append tibetan-precomposed-transcription-alist
tibetan-consonant-transcription-alist
tibetan-vowel-transcription-alist
tibetan-modifier-transcription-alist
tibetan-subjoined-transcription-alist))))
"Regexp matching a Tibetan transcription of a composable Tibetan sequence.
The result of matching is to be used for indexing alists at conversion
from a roman transcription to the corresponding Tibetan character.")
(defvar tibetan-precomposed-regexp
(purecopy
(concat "^\\("
(mapconcat #'car tibetan-precomposed-transcription-alist "\\|")
"\\)"))
(eval-when-compile
(concat "^"
(regexp-opt (mapcar #'car tibetan-precomposed-transcription-alist)
t))))
"Regexp string to match a romanized Tibetan complex consonant.
The result of matching is to be used for indexing alists when the input key
from an input method is converted to the corresponding precomposed glyph.")
(defvar tibetan-precomposition-rule-regexp
(purecopy
(concat "\\("
(mapconcat #'car tibetan-precomposition-rule-alist "\\|")
"\\)"))
(eval-when-compile
(regexp-opt (mapcar #'car tibetan-precomposition-rule-alist) t)))
"Regexp string to match a sequence of Tibetan consonantic components.
That is, one base consonant and one or more subjoined consonants.
The result of matching is to be used for indexing alist when the component