diff options
Diffstat (limited to 'lisp/emacs-lisp/lisp-mode.el')
| -rw-r--r-- | lisp/emacs-lisp/lisp-mode.el | 49 |
1 files changed, 20 insertions, 29 deletions
diff --git a/lisp/emacs-lisp/lisp-mode.el b/lisp/emacs-lisp/lisp-mode.el index b4f87fdac66..6b3077302ed 100644 --- a/lisp/emacs-lisp/lisp-mode.el +++ b/lisp/emacs-lisp/lisp-mode.el @@ -181,32 +181,25 @@ nil))) res)) -(defconst lisp--el-macro-regexp nil - "A regular expression matching all loaded elisp macros. -Can be updated using `lisp--el-update-macro-regexp' after new -macros were defined.") - -(defun lisp--el-update-macro-regexp () - "Update `lisp--el-update-macro-regexp' from `obarray'. -Return non-nil only if the old and new value are different." - (let ((old-regex lisp--el-macro-regexp) - (elisp-macros nil)) - (mapatoms (lambda (a) - (when (or (macrop a) (special-form-p a)) - (push (symbol-name a) elisp-macros)))) - (setq lisp--el-macro-regexp - (concat "(" (regexp-opt elisp-macros t) "\\_>")) - (not (string= old-regex lisp--el-macro-regexp)))) - -(defun lisp--el-update-after-load (_file) - "Update `lisp--el-macro-regexp' and adjust font-lock in existing buffers." - (when (lisp--el-update-macro-regexp) +(defun lisp--el-match-keyword (limit) + (catch 'found + (while (re-search-forward "(\\(\\(?:\\sw\\|\\s_\\)+\\)\\_>" limit t) + (let ((sym (intern-soft (match-string 1)))) + (when (or (special-form-p sym) + (and (macrop sym) + (not (get sym 'no-font-lock-keyword)))) + (throw 'found t)))))) + +(defun lisp--el-font-lock-flush-elisp-buffers (&optional file) + ;; Don't flush during load unless called from after-load-functions. + ;; In that case, FILE is non-nil. It's somehow strange that + ;; load-in-progress is t when an after-load-function is called since + ;; that should run *after* the load... + (when (or (not load-in-progress) file) (dolist (buf (buffer-list)) - (when (derived-mode-p 'emacs-lisp-mode) - (font-lock-flush))))) - -(defun lisp--el-match-macro (limit) - (re-search-forward lisp--el-macro-regexp limit t)) + (with-current-buffer buf + (when (derived-mode-p 'emacs-lisp-mode) + (font-lock-flush)))))) (pcase-let ((`(,vdefs ,tdefs @@ -362,7 +355,7 @@ Return non-nil only if the old and new value are different." `( ;; Regexp negated char group. ("\\[\\(\\^\\)" 1 font-lock-negation-char-face prepend) ;; Control structures. Common Lisp forms. - (lisp--el-match-macro . 1) + (lisp--el-match-keyword . 1) ;; Exit/Feature symbols as constants. (,(concat "(\\(catch\\|throw\\|featurep\\|provide\\|require\\)\\_>" "[ \t']*\\(\\(?:\\sw\\|\\s_\\)+\\)?") @@ -543,9 +536,7 @@ font-lock keywords will not be case sensitive." . lisp-font-lock-syntactic-face-function))) (setq-local prettify-symbols-alist lisp--prettify-symbols-alist) (when elisp - (unless lisp--el-macro-regexp - (lisp--el-update-macro-regexp)) - (add-hook 'after-load-functions #'lisp--el-update-after-load) + (add-hook 'after-load-functions #'lisp--el-font-lock-flush-elisp-buffers) (setq-local electric-pair-text-pairs (cons '(?\` . ?\') electric-pair-text-pairs))) (setq-local electric-pair-skip-whitespace 'chomp) |