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129 lines
4.0 KiB
EmacsLisp
129 lines
4.0 KiB
EmacsLisp
;;; ob-tcl.el --- Org-babel functions for tcl evaluation
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;; Copyright (C) 2009-2013 Free Software Foundation, Inc.
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;; Authors: Dan Davison
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;; Eric Schulte
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;; Luis Anaya (tcl)
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;;
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;; Keywords: literate programming, reproducible research
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;; Homepage: http://orgmode.org
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;; This file is not part of GNU Emacs.
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;; This program 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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;; This program 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 tcl source code.
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;;; Code:
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(require 'ob)
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(require 'ob-eval)
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(eval-when-compile (require 'cl))
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(defvar org-babel-tangle-lang-exts)
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(add-to-list 'org-babel-tangle-lang-exts '("tcl" . "tcl"))
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(defvar org-babel-default-header-args:tcl nil)
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(defcustom org-babel-tcl-command "tclsh"
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"Name of command to use for executing Tcl code."
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:group 'org-babel
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:type 'string)
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(defun org-babel-execute:tcl (body params)
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"Execute a block of Tcl code with Babel.
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This function is called by `org-babel-execute-src-block'."
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(let* ((session (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:tcl params)))
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(session (org-babel-tcl-initiate-session session)))
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(org-babel-reassemble-table
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(org-babel-tcl-evaluate session full-body result-type)
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(org-babel-pick-name
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(cdr (assoc :colname-names params)) (cdr (assoc :colnames params)))
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(org-babel-pick-name
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(cdr (assoc :rowname-names params)) (cdr (assoc :rownames params))))))
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(defun org-babel-prep-session:tcl (session params)
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"Prepare SESSION according to the header arguments in PARAMS."
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(error "Sessions are not supported for Tcl."))
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(defun org-babel-variable-assignments:tcl (params)
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"Return list of tcl statements assigning the block's variables."
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(mapcar
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(lambda (pair)
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(format "set %s %s"
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(car pair)
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(org-babel-tcl-var-to-tcl (cdr pair))))
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(mapcar #'cdr (org-babel-get-header params :var))))
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;; helper functions
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(defun org-babel-tcl-var-to-tcl (var)
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"Convert an elisp value to a tcl variable.
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The elisp value, VAR, is converted to a string of tcl source code
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specifying a var of the same value."
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(if (listp var)
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(concat "{" (mapconcat #'org-babel-tcl-var-to-tcl var " ") "}")
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(format "%s" var)))
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(defvar org-babel-tcl-buffers '(:default . nil))
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(defun org-babel-tcl-initiate-session (&optional session params)
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"Return nil because sessions are not supported by tcl."
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nil)
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(defvar org-babel-tcl-wrapper-method
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"
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proc main {} {
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%s
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}
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set r [eval main]
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set o [open \"%s\" \"w\"];
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puts $o $r
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flush $o
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close $o
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")
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(defvar org-babel-tcl-pp-wrapper-method
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nil)
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(defun org-babel-tcl-evaluate (session body &optional result-type)
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"Pass BODY to the Tcl process in SESSION.
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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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(when session (error "Sessions are not supported for Tcl."))
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(case result-type
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(output (org-babel-eval org-babel-tcl-command body))
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(value (let ((tmp-file (org-babel-temp-file "tcl-")))
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(org-babel-eval
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org-babel-tcl-command
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(format org-babel-tcl-wrapper-method body
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(org-babel-process-file-name tmp-file 'noquote)))
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(org-babel-eval-read-file tmp-file)))))
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(provide 'ob-tcl)
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;;; ob-tcl.el ends here
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