diff --git a/lisp/+shr.el b/lisp/+shr.el new file mode 100644 index 0000000..af4bf5b --- /dev/null +++ b/lisp/+shr.el @@ -0,0 +1,51 @@ +;;; +shr.el --- SHR extras -*- lexical-binding: t; -*- + +;;; Commentary: + +;;; Code: + +;;; [[https://github.com/oantolin/emacs-config/blob/master/my-lisp/shr-heading.el][shr-heading]], by oantolin + +(defun +shr-heading-next (&optional arg) + "Move forward by ARG headings (any h1-h4). +If ARG is negative move backwards, ARG defaults to 1." + (interactive "p") + (unless arg (setq arg 1)) + (catch 'return + (dotimes (_ (abs arg)) + (when (> arg 0) (end-of-line)) + (if-let ((match + (funcall (if (> arg 0) + #'text-property-search-forward + #'text-property-search-backward) + 'face '(shr-h1 shr-h2 shr-h3 shr-h4) + (lambda (tags face) + (cl-loop for x in (if (consp face) face (list face)) + thereis (memq x tags)))))) + (goto-char + (if (> arg 0) (prop-match-beginning match) (prop-match-end match))) + (throw 'return nil)) + (when (< arg 0) (beginning-of-line))) + (beginning-of-line) + (point))) + +(defun +shr-heading-previous (&optional arg) + "Move backward by ARG headings (any h1-h4). +If ARG is negative move forwards instead, ARG defaults to 1." + (interactive "p") + (+shr-heading-next (- (or arg 1)))) + +(defun +shr-heading--line-at-point () + "Return the current line." + (buffer-substring (line-beginning-position) (line-end-position))) + +(defun +shr-heading-setup-imenu () + "Setup imenu for h1-h4 headings in eww buffer. +Add this function to appropriate major mode hooks such as +`eww-mode-hook' or `elfeed-show-mode-hook'." + (setq-local + imenu-prev-index-position-function #'+shr-heading-previous + imenu-extract-index-name-function #'+shr-heading--line-at-point)) + +(provide '+shr) +;;; +shr.el ends here