diff options
Diffstat (limited to 'lisp/treesit.el')
| -rw-r--r-- | lisp/treesit.el | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/lisp/treesit.el b/lisp/treesit.el index 297812f23f7..045fdf21cba 100644 --- a/lisp/treesit.el +++ b/lisp/treesit.el @@ -1186,12 +1186,18 @@ See `treesit-simple-indent-presets'.") (skip-syntax-backward "-") (point)))) (cons 'prev-adaptive-prefix - (lambda (_n parent &rest _) - (let ((comment-start-bol - (save-excursion - (goto-char (treesit-node-start parent)) - (line-beginning-position)))) + (lambda (_n parent bol &rest _) + (let (comment-start-bol + this-line-has-prefix) (save-excursion + (goto-char (treesit-node-start parent)) + (setq comment-start-bol (line-beginning-position)) + + (goto-char bol) + (setq this-line-has-prefix + (and (looking-at adaptive-fill-regexp) + (match-string 1))) + (forward-line -1) (and (>= (point) comment-start-bol) adaptive-fill-regexp @@ -1199,7 +1205,14 @@ See `treesit-simple-indent-presets'.") ;; If previous line is an empty line, don't ;; indent. (not (looking-at (rx (* whitespace) eol))) - (match-end 0)))))) + ;; Return the anchor. If the indenting line + ;; has a prefix and the previous line also + ;; has a prefix, indent to the beginning of + ;; prev line's prefix rather than the end of + ;; prev line's prefix. (Bug#61314). + (or (and this-line-has-prefix + (match-beginning 1)) + (match-end 0))))))) ;; TODO: Document. (cons 'grand-parent (lambda (_n parent &rest _) @@ -1336,8 +1349,11 @@ prev-adaptive-prefix Goes to the beginning of previous non-empty line, and tries to match `adaptive-fill-regexp'. If it matches, return the - end of the match, otherwise return nil. This is useful for a - `indent-relative'-like indent behavior for block comments.") + end of the match, otherwise return nil. However, if the + current line begins with a prefix, return the beginning of + the prefix of the previous line instead, so that the two + prefixes aligns. This is useful for a `indent-relative'-like + indent behavior for block comments.") (defun treesit--simple-indent-eval (exp) "Evaluate EXP. |