branch: elpa/yaml-mode
commit ad8685c24846ccde4f618589812d7324c0ac7210
Author: Dmitry Gutov <[email protected]>
Commit: Dmitry Gutov <[email protected]>
yaml-mode-syntax-propertize-function: Speed up in large strings
Fixes #75
---
yaml-mode.el | 33 +++++++++++++++++++++------------
1 file changed, 21 insertions(+), 12 deletions(-)
diff --git a/yaml-mode.el b/yaml-mode.el
index 7adb17f..5eaa51e 100644
--- a/yaml-mode.el
+++ b/yaml-mode.el
@@ -262,21 +262,30 @@ that key is pressed to begin a block literal."
;; after a non-whitespace character, then mark it as syntactic word.
(save-excursion
(goto-char beg)
- (while (re-search-forward "['\"]" end t)
+ (while (and
+ (> end (point))
+ (re-search-forward "['\"]" end t))
(when (get-text-property (point) 'yaml-block-literal)
(put-text-property (1- (point)) (point)
'syntax-table (string-to-syntax "w")))
- (when (nth 8 (syntax-ppss))
- (save-excursion
- (forward-char -1)
- (cond ((and (char-equal ?' (char-before (point)))
- (char-equal ?' (char-after (point)))
- (put-text-property (1- (point)) (1+ (point))
- 'syntax-table (string-to-syntax
"w"))))
- ((and (not (bolp))
- (char-equal ?w (char-syntax (char-before (point)))))
- (put-text-property (point) (1+ (point))
- 'syntax-table (string-to-syntax
"w")))))))))
+ (let ((sps (syntax-ppss)))
+ (when (nth 8 sps)
+ (or
+ (save-excursion
+ (forward-char -1)
+ (cond ((and (char-equal ?' (char-before (point)))
+ (char-equal ?' (char-after (point)))
+ (put-text-property (1- (point)) (1+ (point))
+ 'syntax-table (string-to-syntax
"w"))))
+ ((and (not (bolp))
+ (char-equal ?w (char-syntax (char-before (point)))))
+ (put-text-property (point) (1+ (point))
+ 'syntax-table (string-to-syntax "w")))))
+ ;; We're right after a quote that opens a string literal.
+ ;; Skip over it (big speedup for long JSON strings).
+ (when (nth 3 sps)
+ (goto-char (nth 8 sps))
+ (ignore-errors (forward-sexp)))))))))
(defun yaml-font-lock-block-literals (bound)
"Find lines within block literals.
