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lang/emacs-lisp: optimize symbol fontification

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By ignoring symbols in comments and strings.
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Henrik Lissner 2018-08-20 23:47:31 +02:00
parent 97bc69b9e5
commit 1cb31d7cb5
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GPG Key ID: 5F6C0EA160557395
1 changed files with 22 additions and 19 deletions
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41
modules/lang/emacs-lisp/config.el
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@ -64,25 +64,28 @@ Functions are differentiated into special forms, built-in functions and
library/userland functions"
(catch 'matcher
(while (re-search-forward "\\_<.+?\\_>" end t)
(let ((symbol (intern-soft (match-string-no-properties 0))))
(and (cond ((null symbol) nil)
((eq symbol t) nil)
((special-variable-p symbol)
(setq +emacs-lisp--face 'font-lock-variable-name-face))
((and (fboundp symbol)
(eq (char-before (match-beginning 0)) ?\())
(let ((unaliased (indirect-function symbol t)))
(unless (or (macrop unaliased)
(special-form-p unaliased))
(let (unadvised)
(while (not (eq (setq unadvised (ad-get-orig-definition unaliased))
(setq unaliased (indirect-function unadvised t)))))
unaliased)
(setq +emacs-lisp--face
(if (subrp unaliased)
'font-lock-constant-face
'font-lock-function-name-face))))))
(throw 'matcher t))))
(unless (save-excursion
(let ((ppss (syntax-ppss)))
(or (nth 3 ppss) (nth 4 ppss))))
(let ((symbol (intern-soft (match-string-no-properties 0))))
(and (cond ((null symbol) nil)
((eq symbol t) nil)
((special-variable-p symbol)
(setq +emacs-lisp--face 'font-lock-variable-name-face))
((and (fboundp symbol)
(eq (char-before (match-beginning 0)) ?\())
(let ((unaliased (indirect-function symbol t)))
(unless (or (macrop unaliased)
(special-form-p unaliased))
(let (unadvised)
(while (not (eq (setq unadvised (ad-get-orig-definition unaliased))
(setq unaliased (indirect-function unadvised t)))))
unaliased)
(setq +emacs-lisp--face
(if (subrp unaliased)
'font-lock-constant-face
'font-lock-function-name-face))))))
(throw 'matcher t)))))
nil))
(eval-when-compile
(byte-compile #'+emacs-lisp-highlight-vars-and-faces))