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Diffstat (limited to 'elpa/org-9.5.2/ob-awk.el')
-rw-r--r-- | elpa/org-9.5.2/ob-awk.el | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/elpa/org-9.5.2/ob-awk.el b/elpa/org-9.5.2/ob-awk.el new file mode 100644 index 0000000..28e9d32 --- /dev/null +++ b/elpa/org-9.5.2/ob-awk.el @@ -0,0 +1,110 @@ +;;; ob-awk.el --- Babel Functions for Awk -*- lexical-binding: t; -*- + +;; Copyright (C) 2011-2021 Free Software Foundation, Inc. + +;; Author: Eric Schulte +;; Maintainer: Tyler Smith <tyler@plantarum.ca> +;; Keywords: literate programming, reproducible research +;; Homepage: https://orgmode.org + +;; This file is part of GNU Emacs. + +;; GNU Emacs is free software: you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation, either version 3 of the License, or +;; (at your option) any later version. + +;; GNU Emacs is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. + +;; You should have received a copy of the GNU General Public License +;; along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>. + +;;; Commentary: + +;; Babel's awk can use special header argument: +;; +;; - :in-file takes a path to a file of data to be processed by awk +;; +;; - :stdin takes an Org data or code block reference, the value of +;; which will be passed to the awk process through STDIN + +;;; Code: +(require 'ob) +(require 'org-compat) + +(declare-function org-babel-ref-resolve "ob-ref" (ref)) +(declare-function orgtbl-to-generic "org-table" (table params)) + +(defvar org-babel-tangle-lang-exts) +(add-to-list 'org-babel-tangle-lang-exts '("awk" . "awk")) + +(defvar org-babel-awk-command "awk" + "Name of the awk executable command.") + +(defun org-babel-expand-body:awk (body _params) + "Expand BODY according to PARAMS, return the expanded body." + body) + +(defun org-babel-execute:awk (body params) + "Execute a block of Awk code with org-babel. +This function is called by `org-babel-execute-src-block'." + (message "executing Awk source code block") + (let* ((result-params (cdr (assq :result-params params))) + (cmd-line (cdr (assq :cmd-line params))) + (in-file (cdr (assq :in-file params))) + (full-body (org-babel-expand-body:awk body params)) + (code-file (let ((file (org-babel-temp-file "awk-"))) + (with-temp-file file (insert full-body)) file)) + (stdin (let ((stdin (cdr (assq :stdin params)))) + (when stdin + (let ((tmp (org-babel-temp-file "awk-stdin-")) + (res (org-babel-ref-resolve stdin))) + (with-temp-file tmp + (insert (org-babel-awk-var-to-awk res))) + tmp)))) + (cmd (mapconcat #'identity + (append + (list org-babel-awk-command + "-f" code-file cmd-line) + (mapcar (lambda (pair) + (format "-v %s='%s'" + (car pair) + (org-babel-awk-var-to-awk + (cdr pair)))) + (org-babel--get-vars params)) + (list in-file)) + " "))) + (org-babel-reassemble-table + (let ((results + (cond + (stdin (with-temp-buffer + (call-process-shell-command cmd stdin (current-buffer)) + (buffer-string))) + (t (org-babel-eval cmd ""))))) + (when results + (org-babel-result-cond result-params + results + (let ((tmp (org-babel-temp-file "awk-results-"))) + (with-temp-file tmp (insert results)) + (org-babel-import-elisp-from-file tmp))))) + (org-babel-pick-name + (cdr (assq :colname-names params)) (cdr (assq :colnames params))) + (org-babel-pick-name + (cdr (assq :rowname-names params)) (cdr (assq :rownames params)))))) + +(defun org-babel-awk-var-to-awk (var &optional sep) + "Return a printed value of VAR suitable for parsing with awk." + (let ((echo-var (lambda (v) (if (stringp v) v (format "%S" v))))) + (cond + ((and (listp var) (listp (car var))) + (orgtbl-to-generic var (list :sep (or sep "\t") :fmt echo-var))) + ((listp var) + (mapconcat echo-var var "\n")) + (t (funcall echo-var var))))) + +(provide 'ob-awk) + +;;; ob-awk.el ends here |