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de42649f7b
e85080 is the last correct commit in the maint branch before releasing 7.8.04. The 7.8.05 release should be done from this commit.
246 lines
8.2 KiB
EmacsLisp
246 lines
8.2 KiB
EmacsLisp
;;; ob-ruby.el --- org-babel functions for ruby evaluation
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;; Copyright (C) 2009-2012 Free Software Foundation, Inc.
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;; Author: Eric Schulte
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;; Keywords: literate programming, reproducible research
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;; Homepage: http://orgmode.org
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Org-Babel support for evaluating ruby source code.
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;;; Requirements:
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;; - ruby and irb executables :: http://www.ruby-lang.org/
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;;
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;; - ruby-mode :: Can be installed through ELPA, or from
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;; http://github.com/eschulte/rinari/raw/master/util/ruby-mode.el
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;;
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;; - inf-ruby mode :: Can be installed through ELPA, or from
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;; http://github.com/eschulte/rinari/raw/master/util/inf-ruby.el
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;;; Code:
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(require 'ob)
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(require 'ob-ref)
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(require 'ob-comint)
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(require 'ob-eval)
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(eval-when-compile (require 'cl))
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(declare-function run-ruby "ext:inf-ruby" (&optional command name))
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(declare-function xmp "ext:rcodetools" (&optional option))
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(defvar org-babel-tangle-lang-exts)
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(add-to-list 'org-babel-tangle-lang-exts '("ruby" . "rb"))
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(defvar org-babel-default-header-args:ruby '())
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(defvar org-babel-ruby-command "ruby"
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"Name of command to use for executing ruby code.")
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(defun org-babel-execute:ruby (body params)
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"Execute a block of Ruby code with Babel.
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This function is called by `org-babel-execute-src-block'."
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(let* ((session (org-babel-ruby-initiate-session
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(cdr (assoc :session params))))
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(result-params (cdr (assoc :result-params params)))
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(result-type (cdr (assoc :result-type params)))
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(full-body (org-babel-expand-body:generic
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body params (org-babel-variable-assignments:ruby params)))
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(result (if (member "xmp" result-params)
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(with-temp-buffer
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(require 'rcodetools)
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(insert full-body)
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(xmp (cdr (assoc :xmp-option params)))
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(buffer-string))
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(org-babel-ruby-evaluate
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session full-body result-type result-params))))
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(org-babel-reassemble-table
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result
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(org-babel-pick-name (cdr (assoc :colname-names params))
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(cdr (assoc :colnames params)))
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(org-babel-pick-name (cdr (assoc :rowname-names params))
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(cdr (assoc :rownames params))))))
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(defun org-babel-prep-session:ruby (session params)
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"Prepare SESSION according to the header arguments specified in PARAMS."
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;; (message "params=%S" params) ;; debugging
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(let* ((session (org-babel-ruby-initiate-session session))
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(var-lines (org-babel-variable-assignments:ruby params)))
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(org-babel-comint-in-buffer session
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(sit-for .5) (goto-char (point-max))
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(mapc (lambda (var)
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(insert var) (comint-send-input nil t)
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(org-babel-comint-wait-for-output session)
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(sit-for .1) (goto-char (point-max))) var-lines))
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session))
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(defun org-babel-load-session:ruby (session body params)
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"Load BODY into SESSION."
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(save-window-excursion
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(let ((buffer (org-babel-prep-session:ruby session params)))
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(with-current-buffer buffer
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(goto-char (process-mark (get-buffer-process (current-buffer))))
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(insert (org-babel-chomp body)))
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buffer)))
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;; helper functions
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(defun org-babel-variable-assignments:ruby (params)
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"Return list of ruby statements assigning the block's variables"
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(mapcar
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(lambda (pair)
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(format "%s=%s"
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(car pair)
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(org-babel-ruby-var-to-ruby (cdr pair))))
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(mapcar #'cdr (org-babel-get-header params :var))))
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(defun org-babel-ruby-var-to-ruby (var)
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"Convert VAR into a ruby variable.
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Convert an elisp value into a string of ruby source code
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specifying a variable of the same value."
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(if (listp var)
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(concat "[" (mapconcat #'org-babel-ruby-var-to-ruby var ", ") "]")
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(format "%S" var)))
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(defun org-babel-ruby-table-or-string (results)
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"Convert RESULTS into an appropriate elisp value.
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If RESULTS look like a table, then convert them into an
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Emacs-lisp table, otherwise return the results as a string."
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(org-babel-script-escape results))
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(defun org-babel-ruby-initiate-session (&optional session params)
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"Initiate a ruby session.
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If there is not a current inferior-process-buffer in SESSION
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then create one. Return the initialized session."
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(unless (string= session "none")
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(require 'inf-ruby)
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(let ((session-buffer (save-window-excursion
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(run-ruby nil session) (current-buffer))))
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(if (org-babel-comint-buffer-livep session-buffer)
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(progn (sit-for .25) session-buffer)
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(sit-for .5)
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(org-babel-ruby-initiate-session session)))))
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(defvar org-babel-ruby-eoe-indicator ":org_babel_ruby_eoe"
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"String to indicate that evaluation has completed.")
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(defvar org-babel-ruby-f-write
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"File.open('%s','w'){|f| f.write((_.class == String) ? _ : _.inspect)}")
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(defvar org-babel-ruby-pp-f-write
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"File.open('%s','w'){|f| $stdout = f; pp(results); $stdout = orig_out}")
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(defvar org-babel-ruby-wrapper-method
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"
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def main()
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%s
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end
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results = main()
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File.open('%s', 'w'){ |f| f.write((results.class == String) ? results : results.inspect) }
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")
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(defvar org-babel-ruby-pp-wrapper-method
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"
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require 'pp'
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def main()
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%s
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end
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results = main()
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File.open('%s', 'w') do |f|
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$stdout = f
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pp results
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end
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")
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(defun org-babel-ruby-evaluate
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(buffer body &optional result-type result-params)
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"Pass BODY to the Ruby process in BUFFER.
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If RESULT-TYPE equals 'output then return a list of the outputs
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of the statements in BODY, if RESULT-TYPE equals 'value then
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return the value of the last statement in BODY, as elisp."
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(if (not buffer)
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;; external process evaluation
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(case result-type
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(output (org-babel-eval org-babel-ruby-command body))
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(value (let ((tmp-file (org-babel-temp-file "ruby-")))
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(org-babel-eval
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org-babel-ruby-command
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(format (if (member "pp" result-params)
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org-babel-ruby-pp-wrapper-method
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org-babel-ruby-wrapper-method)
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body (org-babel-process-file-name tmp-file 'noquote)))
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((lambda (raw)
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(if (or (member "code" result-params)
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(member "pp" result-params))
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raw
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(org-babel-ruby-table-or-string raw)))
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(org-babel-eval-read-file tmp-file)))))
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;; comint session evaluation
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(case result-type
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(output
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(mapconcat
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#'identity
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(butlast
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(split-string
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(mapconcat
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#'org-babel-trim
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(butlast
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(org-babel-comint-with-output
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(buffer org-babel-ruby-eoe-indicator t body)
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(mapc
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(lambda (line)
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(insert (org-babel-chomp line)) (comint-send-input nil t))
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(list body org-babel-ruby-eoe-indicator))
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(comint-send-input nil t)) 2)
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"\n") "[\r\n]")) "\n"))
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(value
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((lambda (results)
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(if (or (member "code" result-params) (member "pp" result-params))
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results
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(org-babel-ruby-table-or-string results)))
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(let* ((tmp-file (org-babel-temp-file "ruby-"))
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(ppp (or (member "code" result-params)
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(member "pp" result-params))))
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(org-babel-comint-with-output
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(buffer org-babel-ruby-eoe-indicator t body)
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(when ppp (insert "require 'pp';") (comint-send-input nil t))
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(mapc
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(lambda (line)
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(insert (org-babel-chomp line)) (comint-send-input nil t))
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(append
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(list body)
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(if (not ppp)
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(list (format org-babel-ruby-f-write
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(org-babel-process-file-name tmp-file 'noquote)))
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(list
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"results=_" "require 'pp'" "orig_out = $stdout"
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(format org-babel-ruby-pp-f-write
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(org-babel-process-file-name tmp-file 'noquote))))
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(list org-babel-ruby-eoe-indicator)))
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(comint-send-input nil t))
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(org-babel-eval-read-file tmp-file)))))))
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(defun org-babel-ruby-read-string (string)
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"Strip \\\"s from around a ruby string."
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(if (string-match "^\"\\([^\000]+\\)\"$" string)
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(match-string 1 string)
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string))
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(provide 'ob-ruby)
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;;; ob-ruby.el ends here
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