#! /bin/sh ":"; exec emacs --no-site-file --script "$0" "$@" # -*-emacs-lisp-*- ;; The above line is bash trickery https://stackoverflow.com/questions/6238331/emacs-shell-scripts-how-to-put-initial-options-into-the-script#6259330 ;; based on http://pragmaticemacs.com/emacs/export-org-mode-headlines-to-separate-files/ ;; export headlines to separate files ;; http://emacs.stackexchange.com/questions/2259/how-to-export-top-level-headings-of-org-mode-buffer-to-separate-files ;;; Begin config (setq org-export-head--html-postamble "
Made with %c and with org-export-head, a blog exporter.
The css file of this blog is mainly the result of Zhitao Gong's work.
" ) (setq org-export-head-tags-page "Tags") ; used for the tags to link to a page (setq org-export-head-link-files-to-export (list "file" "video")) ;;Link types whose paths are gonna be copied with hard links ;useful if using custom links (setq org-export-head-using-video-links t) (setq org-export-head-click-toc-h2 t) ;; Make the header of TOC clickable, so you can write CSS for click to display ;;End config (defun org-export-head--run-on-temp-copy-buffer (function-to-run &rest args) "Runs function on a temp buffer with the contents of the original buffer" (save-excursion (let ((temp-buffer (generate-new-buffer "tmp"))) (copy-to-buffer temp-buffer (point-min) (point-max)) (with-current-buffer temp-buffer (org-mode) (outline-show-all) (apply function-to-run args)) (kill-buffer temp-buffer)))) (defun org-export-head (&optional directory-name backend reexport) "Updates the hashes and reexport all changed headings if reexport is nil. Reexports all headings if reexport is non-nil" (interactive) (let ((directory-name (or directory-name (read-directory-name "Directory:"))) (backend (or backend "html"))) (make-directory directory-name t) (org-export-head--run-on-temp-copy-buffer #'org-export-head--modify-buffer-ast directory-name backend reexport) (org-export-head--update-hashes))) (defun org-export-head-reexport (&optional directory-name backend) "Reexports all the headings" (interactive) (org-export-head directory-name backend t)) ;;TODO this function should return a list of hashes to update the original buffer (defun org-export-head--modify-buffer-ast (directory-path backend reexport) "Export all subtrees that are *not* tagged with :noexport: to separate files. Subtrees that do not have the :EXPORT_FILE_NAME: property set are exported to a filename derived from the headline text." (org-export-head--update-hashes) (org-export-expand-include-keyword) ;; Create summaries before deleting the posts (org-export-head--create-summaries) (org-export-head--create-entry-tags) ;; creates tag lists ;; Delete content that has already been exported and set it to noreexport (if (not reexport) (org-export-head--delete-noreexport)) ;;Get headlines, and generate macros (previous post, etc) (let* ((headlines-hash-list (org-export-head--get-headlines)) (headlines-hash (car headlines-hash-list)) (headlines-list (cdr headlines-hash-list)) ;;Insert extra things in the headlines-hash to be used for fixing the macros ;;To define new headline-level macros, add extra functions here (headlines-hash (org-export-head--insert-next-previous-headline headlines-hash headlines-list)) (headlines-hash (org-export-head--add-title-macro headlines-hash headlines-list)) ;;Now we get global macros such as the index and the reversed index (global-macros (org-export-head--generate-index-alist headlines-list headlines-hash)) ;;Now we get the templates. At the moment it is only the header (header (org-export-head--get-content-subtree-match "header")) ;;And now the footer, for example, for comments (footer (org-export-head--get-content-subtree-match "footer"))) ;;For each not noexport/noreexport headline apply the template, i.e. copy contents (org-export-head--run-on-each-heading #'(lambda () (org-export-head--insert-on-header header) (org-export-head--insert-on-footer footer)) "-noexport-noreexport") ;;After applying the template we replace the macros on all places (org-export-head--run-on-each-heading #'(lambda () (let* ((headline-name (org-export-head--headline)) (headline-alist (gethash headline-name headlines-hash nil)) (macro-alist (append headline-alist global-macros))) ;;in reverse order so that headline properties can overshadow these (org-export-head--replace-headline-macros macro-alist))) "-noexport-noreexport") ;;Get the parser tree and the headlines that will become files (let* ((ast (org-element-parse-buffer))) ;;Fix links -- order is important. First external than fuzzy links (org-element-map ast 'link (lambda (link) (let* ((link (or (org-export-head--fix-file-external-link-ast directory-path link) link)) (link (or (org-export-head--fix-local-link-ast headlines-hash link) link)))))) ;;Convert the buffer to contain the new AST, ;;this is needed because the exporter expects the content to be in a buffer (erase-buffer) (insert (org-element-interpret-data ast)) (outline-show-all) ;;Finally export all the headers (org-export-head-export-headers directory-path backend)))) ;;Not everything can be done using the AST, sadly. ;;Org element has no support for adding custom properties to headlines ;;Nor does it have a nice interface to grab the contents without the property drawer ;;Ideally everything would be done using the AST and org-element, since it is ;;Less prone to writting bugs when using it. ;;So right now it is only used for fixing links ;;START OF NON AST (non org-element) SESSION (defun org-export-head--run-on-each-heading(fn match &rest args) "Puts the point on each heading and runs the function. Needed for exporting all headings from http://pragmaticemacs.com/emacs/export-org-mode-headlines-to-separate-files/" (save-excursion (goto-char (point-min)) (goto-char (re-search-forward "^*")) (set-mark (line-beginning-position)) (goto-char (point-max)) (org-map-entries (lambda () (apply fn args)) match 'region-start-level) (deactivate-mark))) (defun org-export-head-export-headers (directory-name backend) "Exports each heading to directory-name using backend" (if (equal backend "html") (org-export-head--run-on-each-heading #'(lambda () (org-set-property "EXPORT_FILE_NAME" (concat directory-name (org-export-head--escaped-headline))) (deactivate-mark) (let ((org-html-postamble org-export-head--html-postamble)) (cl-letf (((symbol-function 'org-export-get-reference) (symbol-function 'org-export-get-reference-custom))) (if org-export-head-click-toc-h2 (cl-letf (( ;(symbol-function 'org-html-toc) (symbol-function 'org-export-head--custom-toc))) (org-html-export-to-html nil t))))) (set-buffer-modified-p t)) "-noexport-noreexport")) (if (equal backend "pdf") (org-export-head--run-on-each-heading #'(lambda () (org-set-property "EXPORT_FILE_NAME" (concat directory-name (org-export-head--escaped-headline))) (deactivate-mark) (org-latex-export-to-pdf nil t) (set-buffer-modified-p t)) "-noexport-noreexport"))) (defun org-export-head--goto-header(&optional no-new-line) "Puts point after property-block if it exists, in an empty line by creating a new line, unless no-new-line is non nil and returns point" (interactive) (org-back-to-heading t) (let* ((beg-end (org-get-property-block)) (end (cdr beg-end))) (goto-char (or end (point)))) (goto-char (point-at-bol 2)) ;;Advance one line (if (not no-new-line) (progn (newline) (goto-char (point-at-bol 0)))) ;;Go back one line (point)) (defun org-export-head--goto-footer(&optional no-new-line) "Puts point at end of ubtree and returns point" (interactive) (org-end-of-subtree) (if (not no-new-line) (progn (newline))) (point)) (defun org-export-head--get-content-subtree-at-point() (interactive) "Gets the content of the subtree at point, performing the necessary includes to check if the hash has changed" (save-excursion (deactivate-mark t) (let* ((start (org-export-head--goto-header t)) (end (org-end-of-subtree t)) (buffer (current-buffer)) (content (buffer-substring start end)) (include-re "^[ \t]*#\\+INCLUDE:")) (if (string-match include-re content) (with-temp-buffer (insert content) (org-mode) (org-export-expand-include-keyword) (buffer-string)) content)))) (defun org-export-head--get-summary-at-point(&optional n-paragraphs n-chars) "Gets the summary of the subtree at point" (interactive) (save-excursion (deactivate-mark t) (let* ((n-paragraphs (or n-paragraphs 1)) (n-chars (or n-chars 200)) (start (org-export-head--goto-header t)) (endmax (save-excursion (org-end-of-subtree t))) (endparagraph (save-excursion (dotimes (i n-paragraphs) (org-forward-paragraph)) (- (point) 1))) (end (min endmax endparagraph (+ start n-chars)))) (buffer-substring start end)))) (defun org-export-head--create-summaries() "Creates summary for all the headings" (org-export-head--run-on-each-heading #'(lambda() (let* ((summary (org-entry-get-with-inheritance "SUMMARY")) (summary (or summary (org-export-head--get-summary-at-point))) (summary (replace-regexp-in-string "\n" " " summary))) (if summary (org-set-property "SUMMARY" summary)))) "-noexport")) (defun org-export-head--create-entry-tags() "Creates list of tags with lin" (org-export-head--run-on-each-heading #'(lambda() (let* ((entry-tags (assoc "ALLTAGS" (org-entry-properties))) (entry-tags (when entry-tags (delete "" (split-string (cdr entry-tags) ":")))) (url org-export-head-tags-page) (tags-text-url "") (tags-text "")) (dolist (tag entry-tags) (unless (or (string= tag "reexport") (string= tag "noexport") (string= tag "noreexport")) (setq tags-text-url (concat tags-text-url "[[file:" (org-export-head--escape url) ".org::#" tag "][#"tag"]] ")) (setq tags-text (concat tags-text tag " ")))) (org-set-property "TAGSURL" tags-text-url) (org-set-property "TAGSTEXT" tags-text))) "-noexport")) ;;; HASH code ;;Idea from https://emacs.stackexchange.com/a/39376/20165 (defun org-export-head--update-hashes() "Updates the hashes of all the headings" (org-export-head--run-on-each-heading #'(lambda() (let ((new-hash (format "%s" (org-export-head-get-hash-value-content))) (old-hash (org-entry-get-with-inheritance "HASH")) (older-hash (org-entry-get-with-inheritance "PREVIOUS-HASH"))) (if (not old-hash) (progn (org-set-property "CREATION-DATE" (format-time-string "%Y-%m-%d")))) ;;If there was a change made (if (not (equal new-hash old-hash)) (progn (org-set-property "MODIFICATION-DATE" (format-time-string "%Y-%m-%d")) (org-set-property "HASH" new-hash))) ;;Setting property is expensive (if (not (equal old-hash older-hash)) (org-set-property "PREVIOUS-HASH" (or old-hash ""))))) "-noexport")) (defun org-export-head-get-hash-value-content() "Gets the hash of the subtree at point" (org-export-head-hash-function (org-export-head--get-content-subtree-at-point))) (defun org-export-head-hash-function(text) "Function to calculate the hash of text. Can be changed to something such as (length text) to run even faster. Shouldn't rally affect the time to export unless your file contains over 100 thousand lines of text" (md5 text)) ;;;END HASH CODE (defun org-export-head--delete-noreexport() "Faster export by deleting things that won't be exported so we don't process them and their links" (org-export-head--run-on-each-heading #'(lambda() (let ((old-hash (org-entry-get-with-inheritance "PREVIOUS-HASH")) (new-hash (org-entry-get-with-inheritance "HASH"))) ;;If there was a change made (if (equal new-hash old-hash) (progn (org-toggle-tag "noreexport" 'on) ;;faster export by deleting noexport things before processing (org-export-head--erase-content-subtree))))) "-noexport-reexport")) (defun org-export-head--erase-content-subtree() (save-excursion (let ((start (org-export-head--goto-header t)) (end (org-end-of-subtree))) (delete-region start end)))) (defun org-export-head--get-headlines () "Returns a tuple that contains a hashtable of headline name to Alist of headline properties As well as a list of the headline names" (message "1") (cl-flet ((make-hash () (make-hash-table :test 'equal)) (add-to-hash (hashtable) (puthash (org-export-head--headline) (org-entry-properties) hashtable))) (let ((headlines-hash (make-hash)) (headlines-list ())) (org-export-head--run-on-each-heading #'(lambda() (add-to-hash headlines-hash) (setq headlines-list (cons (org-export-head--headline) headlines-list))) "-noexport") (cons headlines-hash headlines-list)))) (defun org-export-head--headline () "Gets the headline title if point is at the headline" (nth 4 (org-heading-components))) (defun org-export-head--escaped-headline () (org-export-head--escape (org-export-head--headline))) (defun org-export-head--replace-headline-macros(macro-alist) "Replace macros of the type ###TEXT### They can contain information such as date or previous and next post. Any headline property can be used as a macro of this type." (save-excursion ;;Let's find the end of the headline as a marker, since it can move (let ((subtree-end-marker (save-excursion (org-end-of-subtree) (point-marker)))) ;; End of subtree might change because of macro expansion, so it is recalculated. ;; Macros might be substituted for something smaller, so we move the point on to the left at the end. (while (re-search-forward "\\#\\#\\#\\([-A-Za-z_]+\\)\\#\\#\\#" (marker-position subtree-end-marker) t) (unless (org-in-src-block-p) (let* ((macro (match-string-no-properties 1)) (macro-subs (cdr (assoc macro macro-alist)))) (if macro-subs (replace-match macro-subs t t) (replace-match "")) (backward-char))))))) (defun org-export-head--get-content-subtree-match(match) "Get content of the subtree that matches \"match\" Where match is a tag or -tag or combination of them." (save-excursion (let ((content "")) (org-export-head--run-on-each-heading #'(lambda() (setq content (concat content (org-export-head--get-content-subtree-at-point)))) match) content))) (defun org-export-head--insert-on-header (text) "Insert text on the header of the subtree, but after the property box" (save-excursion (org-export-head--goto-header) (insert text))) (defun org-export-head--insert-on-footer (text) "Insert text on the footer (end) of the subtree" (save-excursion (org-export-head--goto-footer) (insert text))) (defun org-export-head--generate-index-alist (headlines-list headlines-hash) "Geneates an org list with the index of the website and inserts it in an alist" (let ((index "") (reverse-index "") (index-with-dates "") (index-with-summaries "") (all-tags "\n") (all-tags-reverse "\n") (all-tags-with-dates "\n") (all-tags-with-summaries "\n") (tags ()) (tags-indexes ())) (dolist (headline-name headlines-list) (let* ((headline-alist (gethash headline-name headlines-hash nil)) (entry-tags (assoc "ALLTAGS" headline-alist)) (entry-tags (when entry-tags (delete "" (split-string (cdr entry-tags) ":")))) (creation-date (cdr (assoc "CREATION-DATE" headline-alist))) (modification-date (cdr (assoc "MODIFICATION-DATE" headline-alist))) (summary (string-trim (cdr (assoc "SUMMARY" headline-alist)))) (index-entry (concat "- [["headline-name"]["headline-name"]]\n")) (index-entry-with-date (concat "- @@html:@@[["headline-name"]["headline-name"]]@@html:@@" "@@html:@@" " (" creation-date", updated " modification-date ")" "@@html:@@" "\n" )) (index-entry-with-summary (concat index-entry-with-date (unless (= (length summary) 0) (concat " @@html: