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| | ;;; ob-php.el --- org-babel functions for php evaluation
;; Copyright (C) 2014 Josh Dukes
;; Author: Josh Dukes
;; Keywords: literate programming, reproducible research
;; Homepage: http://orgmode.org
;; Version: 0.01
;; 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 <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Org-Babel support for evaluating php source code.
;;; Requirements:
;; php and php-mode
;;; Code:
(require 'ob)
;; optionally define a file extension for this language
(add-to-list 'org-babel-tangle-lang-exts '("php" . "php"))
(defvar org-babel-php-command "php"
"Name of command for executing PHP code.")
;; This function expands the body of a source code block by doing
;; things like prepending argument definitions to the body, it is
;; be called by the `org-babel-execute:php' function below.
(defun org-babel-expand-body:php (body params &optional processed-params)
"Expand BODY according to PARAMS, return the expanded body."
(if (or (car (assoc :expand params)) nil)
(let ((full-body
(org-babel-expand-body:generic
body
params
(org-babel-variable-assignments:php params))))
(concat "<?php\n"
full-body
"\n?>"))
(let ((vars
(concat "<?php\n"
(mapconcat
#'identity
(org-babel-variable-assignments:php params)
"\n")
"\n?>")))
(concat vars body))))
(defun org-babel-prep-session:php (session params)
"Prepare SESSION according to the header arguments in PARAMS."
(error "Sessions are not supported for PHP"))
(defun org-babel-php-initiate-session (&optional session params)
"Return nil because sessions are not supported by PHP."
nil)
(defun org-babel-execute:php (body params)
(let* ((session (cdr (assoc :session params)))
(flags (or (cdr (assoc :flags params)) ""))
(src-file (org-babel-temp-file "php-src-"))
(full-body (org-babel-expand-body:php body params))
(session (org-babel-php-initiate-session session))
(results
(progn
(with-temp-file src-file (insert full-body))
(org-babel-eval
(concat org-babel-php-command
" " flags " " src-file) ""))))
(progn
(org-babel-reassemble-table
(org-babel-result-cond (cdr (assoc :result-params params))
(org-babel-read results)
(let ((tmp-file (org-babel-temp-file "c-")))
(with-temp-file tmp-file (insert results))
(org-babel-import-elisp-from-file tmp-file)))
(org-babel-pick-name
(cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
(org-babel-pick-name
(cdr (assoc :rowname-names params)) (cdr (assoc :rownames params)))))))
(defun org-babel-variable-assignments:php (params)
"Return a list of PHP statements assigning the block's variables."
(mapcar
(lambda (pair)
(format "$%s=%s;"
(car pair)
(org-babel-php-var-to-php (cdr pair))))
(mapcar #'cdr (org-babel-get-header params :var))))
(defun org-babel-php-var-to-php (var)
"Convert an elisp var into a string of php source code
specifying a var of the same value."
(if (listp var)
(concat "Array(" (mapconcat #'org-babel-php-var-to-php var ",") ")")
(format "%S" var)))
(defun org-babel-php-table-or-string (results)
"If the results look like a table, then convert them into an
Emacs-lisp table, otherwise return the results as a string."
(org-babel-script-escape results))
(provide 'ob-php)
;;; ob-php.el ends here
|