branch: elpa/typst-ts-mode
commit b1eb84cd2a9158ca7a40ac7381648e5b68a3036e
Author: Huan Thieu Nguyen <[email protected]>
Commit: Huan Thieu Nguyen <[email protected]>
refactor: typst-ts-mode-return, also takes typst-ts-mode-electric-return in
mind #42
---
typst-ts-editing.el | 94 +++++++++++++++++++----------------------------------
typst-ts-mode.el | 4 +++
2 files changed, 38 insertions(+), 60 deletions(-)
diff --git a/typst-ts-editing.el b/typst-ts-editing.el
index 8f64f9c648..b5c0bb168b 100644
--- a/typst-ts-editing.el
+++ b/typst-ts-editing.el
@@ -462,66 +462,40 @@ Using ARG argument will ignore the context and it will
insert a heading instead.
(t
(typst-ts-mode-insert--heading node)))))
-(defun typst-ts-mode-retun (&optional _arg)
- "Stub")
-
-;; (defun typst-ts-mode-return (&optional arg)
-;; "Handle RET depends on condition.
-;; When prefix ARG is non-nil, call global return function."
-;; (interactive "P")
-;; (or
-;; ;; FIXME: This kind of magic/electric behavior should probably be
-;; ;; controllable via a custom var (and described in the docstring).
-;; (when (and (null arg) (eolp))
-;; (let* (;; (cur-pos (point))
-;; ;; (cur-node (treesit-node-at cur-pos))
-;; ;; (cur-node-type (treesit-node-type cur-node))
-;; ;; (parent-node (treesit-node-parent cur-node)) ; could be nil
-;; ;; (parent-node-type (treesit-node-type parent-node))
-;; (node (typst-ts-core-parent-util-type
-;; (typst-ts-core-get-parent-of-node-at-bol-nonwhite)
-;; "item" t t)))
-;; ;; (message "%s %s" cur-node parent-node)
-;; (cond
-;; ;; on item node end
-;; (node
-;; (let* ((has-children (treesit-node-child node 1))
-;; (next-line-pos (line-beginning-position 2))
-;; (next-line-node
-;; (typst-ts-core-get-parent-of-node-at-bol-nonwhite
-;; next-line-pos))
-;; (next-line-top-node ; get container type or `item' type
node
-;; (typst-ts-core-parent-util-type
-;; next-line-node
-;; (regexp-opt '("code" "item"))
-;; t)))
-;; (if has-children
-;; ;; example:
-;; ;; - #[| <- return
-;; ;; ]
-;; (if (and next-line-top-node
-;; ;; end of buffer situation (or next line is the end
-;; ;; line (and no newline character))
-;; (not (equal
-;; (line-number-at-pos next-line-pos)
-;; (line-number-at-pos (point-max)))))
-;; (call-interactively #'newline)
-;; (typst-ts-mode-insert--item node))
-;; ;; no text means delete the item on current line: (item -)
-;; (delete-region (line-beginning-position) (line-end-position))
-;; ;; whether the previous line is in an item
-;; (let* ((prev-line-item-node
-;; (typst-ts-core-parent-util-type
-;; (let ((global-ret-function (global-key-binding (kbd "RET"))))
-;; (if (not current-prefix-arg)
-;; (call-interactively global-ret-function)
-;; (if (yes-or-no-p
-;; (format
-;; "Execute function `%s' without/with the given prefix
argument?"
-;; global-ret-function))
-;; (let ((current-prefix-arg nil))
-;; (call-interactively global-ret-function))
-;; (call-interactively global-ret-function))))))))))))))))
+(defun typst-ts-mode-return (&optional arg)
+ "RET behavior depending context.
+Can be turned off by setting `typst-ts-mode-electric-return' to nil.
+When point is on end of line of a list item with content,
+it will insert a list item without content on the next line.
+
+When point is on a list item without content,
+it will delete the list item.
+
+When using prefix argument ARG, `typst-ts-mode-electric-return' is nil,
+ or no special context, call global RET function"
+ (interactive "P")
+ (let ((default-call
+ (lambda ()
+ (let ((global-ret-function (global-key-binding (kbd "RET"))))
+ (if (not arg)
+ (call-interactively global-ret-function)
+ (if (yes-or-no-p
+ (format
+ "Execute function `%s' without/with the given prefix
argument?"
+ global-ret-function))
+ (let ((current-prefix-arg nil))
+ (call-interactively global-ret-function))
+ (call-interactively global-ret-function))))))
+ (node (typst-ts-core-parent-util-type
+ (typst-ts-core-get-parent-of-node-at-bol-nonwhite)
+ "item" t t)))
+ (cond
+ ((or (not typst-ts-mode-electric-return) arg) (funcall default-call))
+ ((and node (eolp))
+ (if (> (treesit-node-child-count node) 1)
+ (typst-ts-mode-insert--item node)
+ (delete-region (treesit-node-start node) (treesit-node-end node))))
+ (t (funcall default-call)))))
(defun typst-ts-mode-insert--item (node)
"Insert an item after NODE.
diff --git a/typst-ts-mode.el b/typst-ts-mode.el
index c0635614de..973b9fc3c1 100644
--- a/typst-ts-mode.el
+++ b/typst-ts-mode.el
@@ -68,6 +68,10 @@ This variable is used in
`typst-ts-mode-check-grammar-version'."
NOTE this option must be set before the first loading(opening typst file)"
:type 'boolean)
+(defcustom typst-ts-mode-electric-return t
+ "Whether `typst-ts-mode-return' auto inserts list items or not."
+ :type 'boolean)
+
;;
==============================================================================
;; TODO typst has three modes (namely 'markup', 'code' and 'math')
;; Currently only add common settings to syntax table
