diff --git a/doc/org.texi b/doc/org.texi index 9c341af8c..221bcce8b 100644 --- a/doc/org.texi +++ b/doc/org.texi @@ -675,6 +675,8 @@ Specific header arguments files during tangling * comments:: Toggle insertion of comments in tangled code files +* padline:: Control insertion of padding lines in tangled + code files * no-expand:: Turn off variable assignment and noweb expansion during tangling * session:: Preserve the state of code evaluation @@ -11817,6 +11819,8 @@ The following header arguments are defined: files during tangling * comments:: Toggle insertion of comments in tangled code files +* padline:: Control insertion of padding lines in tangled + code files * no-expand:: Turn off variable assignment and noweb expansion during tangling * session:: Preserve the state of code evaluation @@ -12276,7 +12280,7 @@ The @code{:mkdirp} header argument can be used to create parent directories of tangled files when missing. This can be set to @code{yes} to enable directory creation or to @code{no} to inhibit directory creation. -@node comments, no-expand, mkdirp, Specific header arguments +@node comments, padline, mkdirp, Specific header arguments @subsubsection @code{:comments} By default code blocks are tangled to source-code files without any insertion of comments beyond those which may already exist in the body of the code @@ -12303,7 +12307,20 @@ Turns on the ``link'' comment option, and additionally wraps expanded noweb references in the code block body in link comments. @end itemize -@node no-expand, session, comments, Specific header arguments +@node padline, no-expand, comments, Specific header arguments +Control in insertion of padding lines around code block bodies in tangled +code files. The default value is @code{yes} which results in insertion of +newlines before and after each tangled code block. The following arguments +are accepted. + +@itemize @bullet +@item @code{yes} +Insert newlines before and after each code block body in tangled code files. +@item @code{no} +Do not insert any newline padding in tangled output. +@end itemize + +@node no-expand, session, padline, Specific header arguments @subsubsection @code{:no-expand} By default, code blocks are expanded with @code{org-babel-expand-src-block} diff --git a/lisp/ob-tangle.el b/lisp/ob-tangle.el index 138084f8b..f2a539742 100644 --- a/lisp/ob-tangle.el +++ b/lisp/ob-tangle.el @@ -68,11 +68,6 @@ then the name of the language is used." :group 'org-babel :type 'hook) -(defcustom org-babel-tangle-pad-newline t - "Switch indicating whether to pad tangled code with newlines." - :group 'org-babel - :type 'boolean) - (defcustom org-babel-tangle-comment-format-beg "[[%link][%source-name]]" "Format of inserted comments in tangled code files. The following format strings can be used to insert special @@ -378,6 +373,7 @@ form (body (nth 5 spec)) (comment (nth 6 spec)) (comments (cdr (assoc :comments (nth 4 spec)))) + (padline (not (string= "no" (cdr (assoc :padline (nth 4 spec)))))) (link-p (or (string= comments "both") (string= comments "link") (string= comments "yes") (string= comments "noweb"))) (link-data (mapcar (lambda (el) @@ -390,14 +386,14 @@ form (let ((text (org-babel-trim text))) (when (and comments (not (string= comments "no")) (> (length text) 0)) - (when org-babel-tangle-pad-newline (insert "\n")) + (when padline (insert "\n")) (comment-region (point) (progn (insert text) (point))) (end-of-line nil) (insert "\n"))))) (when comment (insert-comment comment)) (when link-p (insert-comment (org-fill-template org-babel-tangle-comment-format-beg link-data))) - (when org-babel-tangle-pad-newline (insert "\n")) + (when padline (insert "\n")) (insert (format "%s\n" diff --git a/lisp/ob.el b/lisp/ob.el index 138932590..6b4a766b4 100644 --- a/lisp/ob.el +++ b/lisp/ob.el @@ -291,14 +291,15 @@ then run `org-babel-pop-to-session'." (defconst org-babel-header-arg-names '(cache cmdline colnames dir exports file noweb results - session tangle var eval noeval comments no-expand shebang) + session tangle var eval noeval comments no-expand shebang padline) "Common header arguments used by org-babel. Note that individual languages may define their own language specific header arguments as well.") (defvar org-babel-default-header-args '((:session . "none") (:results . "replace") (:exports . "code") - (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no")) + (:cache . "no") (:noweb . "no") (:hlines . "no") (:tangle . "no") + (:padnewline . "yes")) "Default arguments to use when evaluating a source block.") (defvar org-babel-default-inline-header-args @@ -1679,7 +1680,7 @@ parameters when merging lists." ("output" "value"))) (exports-exclusive-groups '(("code" "results" "both" "none"))) - params results exports tangle noweb cache vars shebang comments) + params results exports tangle noweb cache vars shebang comments padline) (flet ((e-merge (exclusive-groups &rest result-params) ;; maintain exclusivity of mutually exclusive parameters (let (output) @@ -1746,6 +1747,9 @@ parameters when merging lists." (:cache (setq cache (e-merge '(("yes" "no")) cache (split-string (or (cdr pair) ""))))) + (:padline + (setq padline (e-merge '(("yes" "no")) padline + (split-string (or (cdr pair) ""))))) (:shebang ;; take the latest -- always overwrite (setq shebang (or (list (cdr pair)) shebang))) (:comments @@ -1756,17 +1760,13 @@ parameters when merging lists." plist)) plists)) (while vars (setq params (cons (cons :var (cddr (pop vars))) params))) - (cons (cons :comments (mapconcat 'identity comments " ")) - (cons (cons :shebang (mapconcat 'identity shebang " ")) - (cons (cons :cache (mapconcat 'identity cache " ")) - (cons (cons :noweb (mapconcat 'identity noweb " ")) - (cons (cons :tangle (mapconcat 'identity tangle " ")) - (cons (cons :exports - (mapconcat 'identity exports " ")) - (cons - (cons :results - (mapconcat 'identity results " ")) - params))))))))) + (mapc + (lambda (hd) + (let ((key (intern (concat ":" (symbol-name hd)))) + (val (eval hd))) + (setf params (cons (cons key (mapconcat 'identity val " ")) params)))) + '(results exports tangle noweb padline cache shebang comments)) + params)) (defun org-babel-expand-noweb-references (&optional info parent-buffer) "Expand Noweb references in the body of the current source code block.