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ob-tts.el
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;;; ob-tts.el --- org-babel functions for tts evaluation
;; Copyright (C)
;; Author: zbelial
;; Maintainer: zbelial
;; Version: 0.1.0
;; Package-Requires: ((emacs "29.1"))
;; Homepage: https://github.com/zbelial/tts.el
;; Keywords: TTS Emacs
;;; License:
;; This program 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, or (at your option)
;; any later version.
;;
;; This program 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; see the file COPYING. If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;; Commentary:
;;; Code:
(require 'ob)
(require 'ob-ref)
(require 'tts)
(define-derived-mode tts-mode text-mode "TTS")
;; optionally define a file extension for this language
(add-to-list 'org-babel-tangle-lang-exts '("tts" . "tts"))
;; optionally declare default header arguments for this language
(defvar org-babel-default-header-args:tts '())
;; This function expands the body of a source code block by doing things like
;; prepending argument definitions to the body, it should be called by the
;; `org-babel-execute:tts' function below. Variables get concatenated in
;; the `mapconcat' form, therefore to change the formatting you can edit the
;; `format' form.
(defun org-babel-expand-body:tts (body params &optional processed-params)
"Expand BODY according to PARAMS, return the expanded body."
(require 'inf-tts nil t)
(let ((vars (org-babel--get-vars (or processed-params (org-babel-process-params params)))))
(concat
(mapconcat ;; define any variables
(lambda (pair)
(format "%s=%S"
(car pair) (org-babel-tts-var-to-tts (cdr pair))))
vars "\n")
"\n" body "\n")))
;; This is the main function which is called to evaluate a code
;; block.
;;
;; This function will evaluate the body of the source code and
;; return the results as emacs-lisp depending on the value of the
;; :results header argument
;; - output means that the output to STDOUT will be captured and
;; returned
;; - value means that the value of the last statement in the
;; source code block will be returned
;;
;; The most common first step in this function is the expansion of the
;; PARAMS argument using `org-babel-process-params'.
;;
;; Please feel free to not implement options which aren't appropriate
;; for your language (e.g. not all languages support interactive
;; "session" evaluation). Also you are free to define any new header
;; arguments which you feel may be useful -- all header arguments
;; specified by the user will be available in the PARAMS variable.
(defun org-babel-execute:tts (body params)
"Execute a block of tts code with org-babel.
This function is called by `org-babel-execute-src-block'"
(message "executing tts source code block")
(let* ((processed-params (org-babel-process-params params))
;; set the session if the value of the session keyword is not the
;; string `none'
;; (session (unless (string= value "none")
;; (org-babel-tts-initiate-session
;; (cdr (assq :session processed-params)))))
;; variables assigned for use in the block
(vars (org-babel--get-vars processed-params))
(result-params (assq :result-params processed-params))
;; either OUTPUT or VALUE which should behave as described above
(result-type (assq :result-type processed-params))
(rate (assoc-default :rate processed-params))
(voice (assoc-default :voice processed-params))
(pitch (assoc-default :pitch processed-params))
(volume (assoc-default :volume processed-params))
;; expand the body with `org-babel-expand-body:tts'
(full-body (org-babel-expand-body:tts
body params processed-params))
result)
;; actually execute the source-code block either in a session or
;; possibly by dropping it to a temporary file and evaluating the
;; file.
(message "params: %s" params)
(message "rate: %s" rate)
(setq result (tts full-body
:voice (if voice (format "%s" voice))
:rate (if rate (format "%s" rate))
:pitch (if pitch (format "%s" pitch))
:volume (if volume (format "%s" volume))))
(when (and result
(file-exists-p (tts--result-media-file result)))
(format "[[elisp:(tts--play-audio \"%s\")][Play]]" (tts--result-media-file result)))))
;; This function should be used to assign any variables in params in
;; the context of the session environment.
(defun org-babel-prep-session:tts (session params)
"Prepare SESSION according to the header arguments specified in PARAMS."
)
(defun org-babel-tts-var-to-tts (var)
"Convert an elisp var into a string of tts source code
specifying a var of the same value."
(format "%S" var))
(defun org-babel-tts-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."
)
(defun org-babel-tts-initiate-session (&optional session)
"If there is not a current inferior-process-buffer in SESSION then create.
Return the initialized session."
(unless (string= session "none")
))
(provide 'ob-tts)
;;; ob-tts.el ends here