mirror of
https://git.savannah.gnu.org/git/emacs/org-mode.git
synced 2024-08-24 13:32:52 +00:00
org-element: Speed optimizations
* contrib/lisp/org-element.el (org-element--element-block-re): New variable. (org-element-current-element): New function. (org-element-parse-elements): Make use of the new specialized function instead of `org-element-at-point'. Also narrow buffer to current container (greater element or recursive object) being parsed to improve search speed. (org-element-comment-parser): Speed-up parsing for comments at column 0. (org-element-guess-type): Make comment regexp less restrictive, due to comment optimizations.
This commit is contained in:
Nicolas Goaziou
parent
102adf13d4
commit
fb046f5b59
|
|
@ -877,39 +877,43 @@ CONTENTS is nil."
|
|||
Return a list whose car is `comment' and cdr is a plist
|
||||
containing `:begin', `:end', `:value' and `:post-blank'
|
||||
keywords."
|
||||
(let ((comment-re "\\(#\\|[ \t]*#\\+\\( \\|$\\)\\)")
|
||||
beg-coms begin end value pos-before-blank keywords)
|
||||
(let (beg-coms begin end end-coms keywords)
|
||||
(save-excursion
|
||||
;; Move to the beginning of comments.
|
||||
(unless (bobp)
|
||||
(while (and (not (bobp)) (looking-at comment-re))
|
||||
(forward-line -1))
|
||||
(unless (looking-at comment-re) (forward-line 1)))
|
||||
(setq beg-coms (point))
|
||||
;; Get affiliated keywords, if any.
|
||||
(setq keywords (org-element-collect-affiliated-keywords))
|
||||
;; Store true beginning of element.
|
||||
(setq begin (car keywords))
|
||||
;; Get ending of comments. If point is in a list, ensure to not
|
||||
;; get outside of it.
|
||||
(let* ((itemp (org-in-item-p))
|
||||
(max-pos (if itemp
|
||||
(org-list-get-bottom-point
|
||||
(save-excursion (goto-char itemp) (org-list-struct)))
|
||||
(point-max))))
|
||||
(while (and (looking-at comment-re) (< (point) max-pos))
|
||||
(forward-line)))
|
||||
(setq pos-before-blank (point))
|
||||
(if (looking-at "#")
|
||||
;; First type of comment: comments at column 0.
|
||||
(let ((comment-re "^\\([^#]\\|#\\+[a-z]\\)"))
|
||||
(save-excursion
|
||||
(re-search-backward comment-re nil 'move)
|
||||
(if (bobp) (setq keywords nil beg-coms (point))
|
||||
(forward-line)
|
||||
(setq keywords (org-element-collect-affiliated-keywords)
|
||||
beg-coms (point))))
|
||||
(re-search-forward comment-re nil 'move)
|
||||
(setq end-coms (if (eobp) (point) (match-beginning 0))))
|
||||
;; Second type of comment: indented comments.
|
||||
(let ((comment-re "[ \t]*#\\+\\(?: \\|$\\)"))
|
||||
(unless (bobp)
|
||||
(while (and (not (bobp)) (looking-at comment-re))
|
||||
(forward-line -1))
|
||||
(unless (looking-at comment-re) (forward-line)))
|
||||
(setq beg-coms (point))
|
||||
(setq keywords (org-element-collect-affiliated-keywords))
|
||||
;; Get comments ending. This may not be accurate if
|
||||
;; commented lines within an item are followed by commented
|
||||
;; lines outside of the list. Though, parser will always
|
||||
;; get it right as it already knows surrounding element and
|
||||
;; has narrowed buffer to its contents.
|
||||
(while (looking-at comment-re) (forward-line))
|
||||
(setq end-coms (point))))
|
||||
;; Find position after blank.
|
||||
(goto-char end-coms)
|
||||
(org-skip-whitespace)
|
||||
(setq end (if (eobp) (point) (point-at-bol)))
|
||||
;; Extract value.
|
||||
(setq value (buffer-substring-no-properties beg-coms pos-before-blank)))
|
||||
(setq end (if (eobp) (point) (point-at-bol))))
|
||||
`(comment
|
||||
(:begin ,begin
|
||||
(:begin ,(or (car keywords) beg-coms)
|
||||
:end ,end
|
||||
:value ,value
|
||||
:post-blank ,(count-lines pos-before-blank end)
|
||||
:value ,(buffer-substring-no-properties beg-coms end-coms)
|
||||
:post-blank ,(count-lines end-coms end)
|
||||
,@(cadr keywords)))))
|
||||
|
||||
(defun org-element-comment-interpreter (comment contents)
|
||||
|
|
@ -2765,7 +2769,7 @@ point is in a section in priority."
|
|||
"^[ \t]*#\\+end:\\(?:\\s-\\|$\\)")))
|
||||
(if (not completep) 'paragraph
|
||||
(goto-char (car completep)) 'dynamic-block)))
|
||||
((looking-at "\\(#\\|[ \t]*#\\+\\( \\|$\\)\\)") 'comment)
|
||||
((looking-at "\\(#\\|[ \t]*#\\+\\)\\(?: \\|$\\)") 'comment)
|
||||
((looking-at "[ \t]*-\\{5,\\}[ \t]*$") 'horizontal-rule)
|
||||
((org-at-table-p t) 'table)
|
||||
((looking-at "[ \t]*#\\+tblfm:")
|
||||
|
|
@ -3056,13 +3060,21 @@ Nil values returned from FUN are ignored in the result."
|
|||
;; Return value in a proper order.
|
||||
(reverse --acc))))
|
||||
|
||||
;; The following functions are internal parts of the parser. The
|
||||
;; first one, `org-element-parse-elements' acts at the element's
|
||||
;; level. The second one, `org-element-parse-objects' applies on all
|
||||
;; objects of a paragraph or a secondary string. It uses
|
||||
;; The following functions are internal parts of the parser.
|
||||
|
||||
;; The first one, `org-element-parse-elements' acts at the element's
|
||||
;; level. As point is always at the beginning of an element during
|
||||
;; parsing, it doesn't have to rely on `org-element-at-point'.
|
||||
;; Instead, it calls a more restrictive, though way quicker,
|
||||
;; alternative: `org-element-current-element'. That function
|
||||
;; internally uses `org-element--element-block-re' for quick access to
|
||||
;; a common regexp.
|
||||
|
||||
;; The second one, `org-element-parse-objects' applies on all objects
|
||||
;; of a paragraph or a secondary string. It uses
|
||||
;; `org-element-get-candidates' to optimize the search of the next
|
||||
;; object in the buffer.
|
||||
;;
|
||||
|
||||
;; More precisely, that function looks for every allowed object type
|
||||
;; first. Then, it discards failed searches, keeps further matches,
|
||||
;; and searches again types matched behind point, for subsequent
|
||||
|
|
@ -3094,54 +3106,40 @@ elements.
|
|||
Elements are accumulated into ACC."
|
||||
(save-excursion
|
||||
(goto-char beg)
|
||||
;; Shortcut when parsing only headlines.
|
||||
;; When parsing only headlines, skip any text before first one.
|
||||
(when (and (eq granularity 'headline) (not (org-at-heading-p)))
|
||||
(org-with-limited-levels (outline-next-heading)))
|
||||
;; Main loop start.
|
||||
(while (and (< (point) end) (not (eobp)))
|
||||
(while (not (eobp))
|
||||
(push
|
||||
;; 1. Item mode is active: point is at an item. Knowing that,
|
||||
;; there's no need to go through `org-element-at-point'.
|
||||
;; 1. Item mode is active: point must be at an item. Parse it
|
||||
;; directly, skipping `org-element-current-element'.
|
||||
(if (eq special 'item)
|
||||
(let* ((element (org-element-item-parser structure))
|
||||
(cbeg (org-element-get-property :contents-begin element))
|
||||
(cend (org-element-get-property :contents-end element)))
|
||||
(let ((element (org-element-item-parser structure)))
|
||||
(goto-char (org-element-get-property :end element))
|
||||
;; Narrow region to contents, so that item bullet don't
|
||||
;; interfere with paragraph parsing.
|
||||
(save-restriction
|
||||
(narrow-to-region cbeg cend)
|
||||
(narrow-to-region
|
||||
(org-element-get-property :contents-begin element)
|
||||
(org-element-get-property :contents-end element))
|
||||
(org-element-parse-elements
|
||||
cbeg cend nil structure granularity visible-only
|
||||
(point-min) (point-max) nil structure granularity visible-only
|
||||
(reverse element))))
|
||||
;; 2. When ITEM is nil, find current element's type and parse
|
||||
;; it accordingly to its category.
|
||||
(let ((element (org-element-at-point special structure)))
|
||||
(let ((element (org-element-current-element special structure)))
|
||||
(goto-char (org-element-get-property :end element))
|
||||
(cond
|
||||
;; Case 1. ELEMENT is a footnote-definition. If
|
||||
;; GRANURALITY allows parsing, use narrowing so that
|
||||
;; footnote label don't interfere with paragraph
|
||||
;; recognition.
|
||||
((and (eq (car element) 'footnote-definition)
|
||||
(not (memq granularity '(headline greater-element))))
|
||||
(let ((cbeg (org-element-get-property :contents-begin element))
|
||||
(cend (org-element-get-property :contents-end element)))
|
||||
(save-restriction
|
||||
(narrow-to-region cbeg cend)
|
||||
(org-element-parse-elements
|
||||
cbeg cend nil structure granularity visible-only
|
||||
(reverse element)))))
|
||||
;; Case 2. ELEMENT is a paragraph. Parse objects inside,
|
||||
;; Case 1. ELEMENT is a paragraph. Parse objects inside,
|
||||
;; if GRANULARITY allows it.
|
||||
((and (eq (car element) 'paragraph)
|
||||
(or (not granularity) (eq granularity 'object)))
|
||||
(org-element-parse-objects
|
||||
(org-element-get-property :contents-begin element)
|
||||
(org-element-get-property :contents-end element)
|
||||
(reverse element)
|
||||
nil))
|
||||
;; Case 3. ELEMENT is recursive: parse it between
|
||||
(save-restriction
|
||||
(narrow-to-region
|
||||
(org-element-get-property :contents-begin element)
|
||||
(org-element-get-property :contents-end element))
|
||||
(org-element-parse-objects
|
||||
(point-min) (point-max) (reverse element) nil)))
|
||||
;; Case 2. ELEMENT is recursive: parse it between
|
||||
;; `contents-begin' and `contents-end'. Make sure
|
||||
;; GRANULARITY allows the recursion, or ELEMENT is an
|
||||
;; headline, in which case going inside is mandatory, in
|
||||
|
|
@ -3153,24 +3151,156 @@ Elements are accumulated into ACC."
|
|||
(eq (car element) 'headline))
|
||||
(not (and visible-only
|
||||
(org-element-get-property :hiddenp element))))
|
||||
(org-element-parse-elements
|
||||
(org-element-get-property :contents-begin element)
|
||||
(org-element-get-property :contents-end element)
|
||||
;; At a plain list, switch to item mode. At an
|
||||
;; headline, switch to section mode. Any other element
|
||||
;; turns off special modes.
|
||||
(case (car element) (plain-list 'item) (headline 'section))
|
||||
(org-element-get-property :structure element)
|
||||
granularity
|
||||
visible-only
|
||||
(reverse element)))
|
||||
;; Case 4. Else, just accumulate ELEMENT.
|
||||
(save-restriction
|
||||
(narrow-to-region
|
||||
(org-element-get-property :contents-begin element)
|
||||
(org-element-get-property :contents-end element))
|
||||
(org-element-parse-elements
|
||||
(point-min) (point-max)
|
||||
;; At a plain list, switch to item mode. At an
|
||||
;; headline, switch to section mode. Any other
|
||||
;; element turns off special modes.
|
||||
(case (car element) (plain-list 'item) (headline 'section))
|
||||
(org-element-get-property :structure element)
|
||||
granularity visible-only (reverse element))))
|
||||
;; Case 3. Else, just accumulate ELEMENT.
|
||||
(t element))))
|
||||
acc)
|
||||
(org-skip-whitespace))
|
||||
;; Return result.
|
||||
(nreverse acc)))
|
||||
|
||||
(defconst org-element--element-block-re
|
||||
(format "[ \t]*#\\+begin_\\(%s\\)\\(?: \\|$\\)"
|
||||
(mapconcat
|
||||
'regexp-quote
|
||||
(mapcar 'car org-element-non-recursive-block-alist) "\\|"))
|
||||
"Regexp matching the beginning of a non-recursive block type.
|
||||
Used internally by `org-element-current-element'. Do not modify
|
||||
it directly, set `org-element-recursive-block-alist' instead.")
|
||||
|
||||
(defun org-element-current-element (&optional special structure)
|
||||
"Parse the element at point.
|
||||
|
||||
Return value is a list \(TYPE PROPS\) where TYPE is the type of
|
||||
the element and PROPS a plist of properties associated to the
|
||||
element.
|
||||
|
||||
Possible types are defined in `org-element-all-elements'.
|
||||
|
||||
Optional argument SPECIAL, when non-nil, can be either `item' or
|
||||
`section'. The former allows to parse item wise instead of
|
||||
plain-list wise, using STRUCTURE as the current list structure.
|
||||
The latter will try to parse a section before anything else.
|
||||
|
||||
If STRUCTURE isn't provided but SPECIAL is set to `item', it will
|
||||
be computed.
|
||||
|
||||
Unlike to `org-element-at-point', this function assumes point is
|
||||
always at the beginning of the element it has to parse. As such,
|
||||
it is quicker than its counterpart and always accurate, albeit
|
||||
more restrictive."
|
||||
(save-excursion
|
||||
(beginning-of-line)
|
||||
;; If point is at an affiliated keyword, try moving to the
|
||||
;; beginning of the associated element. If none is found, the
|
||||
;; keyword is orphaned and will be treated as plain text.
|
||||
(when (looking-at org-element--affiliated-re)
|
||||
(let ((opoint (point)))
|
||||
(while (looking-at org-element--affiliated-re) (forward-line))
|
||||
(when (looking-at "[ \t]*$") (goto-char opoint))))
|
||||
(let ((case-fold-search t))
|
||||
(cond
|
||||
;; Headline.
|
||||
((org-with-limited-levels (org-at-heading-p))
|
||||
(org-element-headline-parser))
|
||||
;; Quote section.
|
||||
((let ((headline (ignore-errors (nth 4 (org-heading-components)))))
|
||||
(and headline
|
||||
(let (case-fold-search)
|
||||
(string-match (format "^%s\\(?: \\|$\\)" org-quote-string)
|
||||
headline))))
|
||||
(org-element-quote-section-parser))
|
||||
;; Section.
|
||||
((eq special 'section) (org-element-section-parser))
|
||||
;; Non-recursive block.
|
||||
((when (looking-at org-element--element-block-re)
|
||||
(let ((type (downcase (match-string 1))))
|
||||
(if (save-excursion
|
||||
(re-search-forward
|
||||
(format "[ \t]*#\\+end_%s\\(?: \\|$\\)" type) nil t))
|
||||
;; Build appropriate parser.
|
||||
(funcall
|
||||
(intern
|
||||
(format "org-element-%s-parser"
|
||||
(cdr (assoc type
|
||||
org-element-non-recursive-block-alist)))))
|
||||
(org-element-paragraph-parser)))))
|
||||
;; Inlinetask.
|
||||
((org-at-heading-p) (org-element-inlinetask-parser))
|
||||
;; LaTeX Environment or paragraph if incomplete.
|
||||
((looking-at "^[ \t]*\\\\begin{")
|
||||
(if (save-excursion
|
||||
(re-search-forward "^[ \t]*\\\\end{[^}]*}[ \t]*" nil t))
|
||||
(org-element-latex-environment-parser)
|
||||
(org-element-paragraph-parser)))
|
||||
;; Property drawer.
|
||||
((looking-at org-property-start-re)
|
||||
(if (save-excursion (re-search-forward org-property-end-re nil t))
|
||||
(org-element-property-drawer-parser)
|
||||
(org-element-paragraph-parser)))
|
||||
;; Recursive block, or paragraph if incomplete.
|
||||
((looking-at "[ \t]*#\\+begin_\\([-A-Za-z0-9]+\\)\\(?: \\|$\\)")
|
||||
(let ((type (downcase (match-string 1))))
|
||||
(cond
|
||||
((not (save-excursion
|
||||
(re-search-forward
|
||||
(format "[ \t]*#\\+end_%s\\(?: \\|$\\)" type) nil t)))
|
||||
(org-element-paragraph-parser))
|
||||
((string= type "center") (org-element-center-block-parser))
|
||||
((string= type "quote") (org-element-quote-block-parser))
|
||||
(t (org-element-special-block-parser)))))
|
||||
;; Drawer.
|
||||
((looking-at org-drawer-regexp)
|
||||
(if (save-excursion (re-search-forward "^[ \t]*:END:[ \t]*$" nil t))
|
||||
(org-element-drawer-parser)
|
||||
(org-element-paragraph-parser)))
|
||||
((looking-at "[ \t]*:\\( \\|$\\)") (org-element-fixed-width-parser))
|
||||
;; Babel call.
|
||||
((looking-at org-babel-block-lob-one-liner-regexp)
|
||||
(org-element-babel-call-parser))
|
||||
;; Keyword, or paragraph if at an affiliated keyword.
|
||||
((looking-at "[ \t]*#\\+\\([a-z]+\\(:?_[a-z]+\\)*\\):")
|
||||
(let ((key (downcase (match-string 1))))
|
||||
(if (or (string= key "tblfm")
|
||||
(member key org-element-affiliated-keywords))
|
||||
(org-element-paragraph-parser)
|
||||
(org-element-keyword-parser))))
|
||||
;; Footnote definition.
|
||||
((looking-at org-footnote-definition-re)
|
||||
(org-element-footnote-definition-parser))
|
||||
;; Dynamic block or paragraph if incomplete.
|
||||
((looking-at "[ \t]*#\\+begin:\\(?: \\|$\\)")
|
||||
(if (save-excursion
|
||||
(re-search-forward "^[ \t]*#\\+end:\\(?: \\|$\\)" nil t))
|
||||
(org-element-dynamic-block-parser)
|
||||
(org-element-paragraph-parser)))
|
||||
;; Comment.
|
||||
((looking-at "\\(#\\|[ \t]*#\\+\\)\\(?: \\|$\\)")
|
||||
(org-element-comment-parser))
|
||||
;; Horizontal rule.
|
||||
((looking-at "[ \t]*-\\{5,\\}[ \t]*$")
|
||||
(org-element-horizontal-rule-parser))
|
||||
;; Table.
|
||||
((org-at-table-p t) (org-element-table-parser))
|
||||
;; List or item.
|
||||
((looking-at (org-item-re))
|
||||
(if (eq special 'item)
|
||||
(org-element-item-parser (or structure (org-list-struct)))
|
||||
(org-element-plain-list-parser (or structure (org-list-struct)))))
|
||||
;; Default element: Paragraph.
|
||||
(t (org-element-paragraph-parser))))))
|
||||
|
||||
(defun org-element-parse-objects (beg end acc restriction)
|
||||
"Parse objects between BEG and END and return recursive structure.
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue