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;;; ob-lilypond.el --- Babel Functions for Lilypond -*- lexical-binding: t; -*- |
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;; Copyright (C) 2010-2018 Free Software Foundation, Inc. |
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;; Author: Martyn Jago |
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;; Keywords: babel language, literate programming |
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;; Homepage: https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-lilypond.html |
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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 <https://www.gnu.org/licenses/>. |
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;;; Commentary: |
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;; Installation, ob-lilypond documentation, and examples are available at |
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;; https://orgmode.org/worg/org-contrib/babel/languages/ob-doc-lilypond.html |
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;; |
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;; Lilypond documentation can be found at |
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;; http://lilypond.org/manuals.html |
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;; |
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;; This depends on epstopdf --- See http://www.ctan.org/pkg/epstopdf. |
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;;; Code: |
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(require 'ob) |
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(require 'outline) |
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(defalias 'lilypond-mode 'LilyPond-mode) |
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(add-to-list 'org-babel-tangle-lang-exts '("LilyPond" . "ly")) |
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(defvar org-babel-default-header-args:lilypond '() |
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"Default header arguments for lilypond code blocks. |
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NOTE: The arguments are determined at lilypond compile time. |
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See (org-babel-lilypond-set-header-args)") |
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(defvar org-babel-lilypond-compile-post-tangle t |
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"Following the org-babel-tangle (C-c C-v t) command, |
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org-babel-lilypond-compile-post-tangle determines whether ob-lilypond should |
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automatically attempt to compile the resultant tangled file. |
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If the value is nil, no automated compilation takes place. |
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Default value is t") |
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(defvar org-babel-lilypond-display-pdf-post-tangle t |
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"Following a successful LilyPond compilation |
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org-babel-lilypond-display-pdf-post-tangle determines whether to automate the |
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drawing / redrawing of the resultant pdf. If the value is nil, |
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the pdf is not automatically redrawn. Default value is t") |
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(defvar org-babel-lilypond-play-midi-post-tangle t |
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"Following a successful LilyPond compilation |
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org-babel-lilypond-play-midi-post-tangle determines whether to automate the |
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playing of the resultant midi file. If the value is nil, |
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the midi file is not automatically played. Default value is t") |
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(defvar org-babel-lilypond-ly-command "" |
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"Command to execute lilypond on your system. |
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Do not set it directly. Customize `org-babel-lilypond-commands' instead.") |
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(defvar org-babel-lilypond-pdf-command "" |
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"Command to show a PDF file on your system. |
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Do not set it directly. Customize `org-babel-lilypond-commands' instead.") |
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(defvar org-babel-lilypond-midi-command "" |
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"Command to play a MIDI file on your system. |
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Do not set it directly. Customize `org-babel-lilypond-commands' instead.") |
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(defcustom org-babel-lilypond-commands |
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(cond |
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((eq system-type 'darwin) |
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'("/Applications/lilypond.app/Contents/Resources/bin/lilypond" "open" "open")) |
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((eq system-type 'windows-nt) |
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'("lilypond" "" "")) |
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(t |
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'("lilypond" "xdg-open" "xdg-open"))) |
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"Commands to run lilypond and view or play the results. |
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These should be executables that take a filename as an argument. |
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On some system it is possible to specify the filename directly |
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and the viewer or player will be determined from the file type; |
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you can leave the string empty on this case." |
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:group 'org-babel |
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:type '(list |
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(string :tag "Lilypond ") |
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(string :tag "PDF Viewer ") |
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(string :tag "MIDI Player")) |
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:version "24.4" |
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:package-version '(Org . "8.2.7") |
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:set |
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(lambda (_symbol value) |
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(setq |
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org-babel-lilypond-ly-command (nth 0 value) |
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org-babel-lilypond-pdf-command (nth 1 value) |
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org-babel-lilypond-midi-command (nth 2 value)))) |
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(defvar org-babel-lilypond-gen-png nil |
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"Non-nil means image generation (PNG) is turned on by default.") |
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(defvar org-babel-lilypond-gen-svg nil |
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"Non-nil means image generation (SVG) is be turned on by default.") |
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(defvar org-babel-lilypond-gen-html nil |
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"Non-nil means HTML generation is turned on by default.") |
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(defvar org-babel-lilypond-gen-pdf nil |
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"Non-nil means PDF generation is be turned on by default.") |
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(defvar org-babel-lilypond-use-eps nil |
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"Non-nil forces the compiler to use the EPS backend.") |
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(defvar org-babel-lilypond-arrange-mode nil |
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"Non-nil turns Arrange mode on. |
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In Arrange mode the following settings are altered from default: |
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:tangle yes, :noweb yes |
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:results silent :comments yes. |
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In addition lilypond block execution causes tangling of all lilypond |
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blocks.") |
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(defun org-babel-expand-body:lilypond (body params) |
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"Expand BODY according to PARAMS, return the expanded body." |
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(let ((vars (org-babel--get-vars params))) |
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(mapc |
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(lambda (pair) |
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(let ((name (symbol-name (car pair))) |
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(value (cdr pair))) |
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(setq body |
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(replace-regexp-in-string |
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(concat "$" (regexp-quote name)) |
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(if (stringp value) value (format "%S" value)) |
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body)))) |
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vars) |
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body)) |
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(defun org-babel-execute:lilypond (body params) |
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"This function is called by `org-babel-execute-src-block'. |
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Depending on whether we are in arrange mode either: |
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1. Attempt to execute lilypond block according to header settings |
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(This is the default basic mode) |
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2. Tangle all lilypond blocks and process the result (arrange mode)" |
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(org-babel-lilypond-set-header-args org-babel-lilypond-arrange-mode) |
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(if org-babel-lilypond-arrange-mode |
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(org-babel-lilypond-tangle) |
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(org-babel-lilypond-process-basic body params))) |
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(defun org-babel-lilypond-tangle () |
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"ob-lilypond specific tangle, attempts to invoke |
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=ly-execute-tangled-ly= if tangle is successful. Also passes |
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specific arguments to =org-babel-tangle=" |
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(interactive) |
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(if (org-babel-tangle nil "yes" "lilypond") |
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(org-babel-lilypond-execute-tangled-ly) nil)) |
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(defun org-babel-lilypond-process-basic (body params) |
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"Execute a lilypond block in basic mode." |
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(let* ((out-file (cdr (assq :file params))) |
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(cmdline (or (cdr (assq :cmdline params)) |
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"")) |
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(in-file (org-babel-temp-file "lilypond-"))) |
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(with-temp-file in-file |
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(insert (org-babel-expand-body:generic body params))) |
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(org-babel-eval |
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(concat |
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org-babel-lilypond-ly-command |
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" -dbackend=eps " |
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"-dno-gs-load-fonts " |
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"-dinclude-eps-fonts " |
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(or (cdr (assoc (file-name-extension out-file) |
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'(("pdf" . "--pdf ") |
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("ps" . "--ps ") |
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("png" . "--png ")))) |
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"--png ") |
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"--output=" |
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(file-name-sans-extension out-file) |
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" " |
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cmdline |
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in-file) "")) nil) |
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(defun org-babel-prep-session:lilypond (_session _params) |
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"Return an error because LilyPond exporter does not support sessions." |
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(error "Sorry, LilyPond does not currently support sessions!")) |
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(defun org-babel-lilypond-execute-tangled-ly () |
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"Compile result of block tangle with lilypond. |
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If error in compilation, attempt to mark the error in lilypond org file" |
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(when org-babel-lilypond-compile-post-tangle |
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(let ((org-babel-lilypond-tangled-file (org-babel-lilypond-switch-extension |
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(buffer-file-name) ".lilypond")) |
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(org-babel-lilypond-temp-file (org-babel-lilypond-switch-extension |
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(buffer-file-name) ".ly"))) |
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(if (not (file-exists-p org-babel-lilypond-tangled-file)) |
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(error "Error: Tangle Failed!") |
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(when (file-exists-p org-babel-lilypond-temp-file) |
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(delete-file org-babel-lilypond-temp-file)) |
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(rename-file org-babel-lilypond-tangled-file |
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org-babel-lilypond-temp-file)) |
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(switch-to-buffer-other-window "*lilypond*") |
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(erase-buffer) |
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(org-babel-lilypond-compile-lilyfile org-babel-lilypond-temp-file) |
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(goto-char (point-min)) |
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(if (org-babel-lilypond-check-for-compile-error org-babel-lilypond-temp-file) |
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(error "Error in Compilation!") |
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(other-window -1) |
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(org-babel-lilypond-attempt-to-open-pdf org-babel-lilypond-temp-file) |
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(org-babel-lilypond-attempt-to-play-midi org-babel-lilypond-temp-file))))) |
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(defun org-babel-lilypond-compile-lilyfile (file-name &optional test) |
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"Compile lilypond file and check for compile errors |
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FILE-NAME is full path to lilypond (.ly) file" |
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(message "Compiling LilyPond...") |
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(let ((arg-1 org-babel-lilypond-ly-command) ;program |
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(arg-2 nil) ;infile |
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(arg-3 "*lilypond*") ;buffer |
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(arg-4 t) ;display |
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(arg-5 (if org-babel-lilypond-gen-png "--png" "")) ;&rest... |
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(arg-6 (if org-babel-lilypond-gen-html "--html" "")) |
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(arg-7 (if org-babel-lilypond-gen-pdf "--pdf" "")) |
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(arg-8 (if org-babel-lilypond-use-eps "-dbackend=eps" "")) |
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(arg-9 (if org-babel-lilypond-gen-svg "-dbackend=svg" "")) |
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(arg-10 (concat "--output=" (file-name-sans-extension file-name))) |
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(arg-11 file-name)) |
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(if test |
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`(,arg-1 ,arg-2 ,arg-3 ,arg-4 ,arg-5 ,arg-6 |
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,arg-7 ,arg-8 ,arg-9 ,arg-10 ,arg-11) |
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(call-process |
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arg-1 arg-2 arg-3 arg-4 arg-5 arg-6 |
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arg-7 arg-8 arg-9 arg-10 arg-11)))) |
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(defun org-babel-lilypond-check-for-compile-error (file-name &optional test) |
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"Check for compile error. |
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This is performed by parsing the *lilypond* buffer |
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containing the output message from the compilation. |
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FILE-NAME is full path to lilypond file. |
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If TEST is t just return nil if no error found, and pass |
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nil as file-name since it is unused in this context" |
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(let ((is-error (search-forward "error:" nil t))) |
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(if test |
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is-error |
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(when is-error |
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(org-babel-lilypond-process-compile-error file-name))))) |
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(defun org-babel-lilypond-process-compile-error (file-name) |
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"Process the compilation error that has occurred. |
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FILE-NAME is full path to lilypond file" |
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(let ((line-num (org-babel-lilypond-parse-line-num))) |
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(let ((error-lines (org-babel-lilypond-parse-error-line file-name line-num))) |
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(org-babel-lilypond-mark-error-line file-name error-lines) |
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(error "Error: Compilation Failed!")))) |
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(defun org-babel-lilypond-mark-error-line (file-name line) |
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"Mark the erroneous lines in the lilypond org buffer. |
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FILE-NAME is full path to lilypond file. |
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LINE is the erroneous line" |
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(switch-to-buffer-other-window |
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(concat (file-name-nondirectory |
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(org-babel-lilypond-switch-extension file-name ".org")))) |
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(let ((temp (point))) |
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(goto-char (point-min)) |
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(setq case-fold-search nil) |
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(if (search-forward line nil t) |
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(progn |
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(outline-show-all) |
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(set-mark (point)) |
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(goto-char (- (point) (length line)))) |
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(goto-char temp)))) |
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(defun org-babel-lilypond-parse-line-num (&optional buffer) |
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"Extract error line number." |
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(when buffer (set-buffer buffer)) |
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(let ((start |
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(and (search-backward ":" nil t) |
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(search-backward ":" nil t) |
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(search-backward ":" nil t) |
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(search-backward ":" nil t)))) |
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(when start |
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(forward-char) |
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(let ((num (string-to-number |
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(buffer-substring |
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(+ 1 start) |
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(- (search-forward ":" nil t) 1))))) |
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(and (numberp num) num))))) |
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(defun org-babel-lilypond-parse-error-line (file-name lineNo) |
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"Extract the erroneous line from the tangled .ly file |
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FILE-NAME is full path to lilypond file. |
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LINENO is the number of the erroneous line" |
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(with-temp-buffer |
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(insert-file-contents (org-babel-lilypond-switch-extension file-name ".ly") |
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nil nil nil t) |
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(if (> lineNo 0) |
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(progn |
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(goto-char (point-min)) |
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(forward-line (- lineNo 1)) |
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(buffer-substring (point) (point-at-eol))) |
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nil))) |
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(defun org-babel-lilypond-attempt-to-open-pdf (file-name &optional test) |
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"Attempt to display the generated pdf file |
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FILE-NAME is full path to lilypond file |
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If TEST is non-nil, the shell command is returned and is not run" |
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(when org-babel-lilypond-display-pdf-post-tangle |
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(let ((pdf-file (org-babel-lilypond-switch-extension file-name ".pdf"))) |
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(if (file-exists-p pdf-file) |
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(let ((cmd-string |
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(concat org-babel-lilypond-pdf-command " " pdf-file))) |
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(if test |
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cmd-string |
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(start-process |
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"\"Audition pdf\"" |
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"*lilypond*" |
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org-babel-lilypond-pdf-command |
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pdf-file))) |
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(message "No pdf file generated so can't display!"))))) |
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(defun org-babel-lilypond-attempt-to-play-midi (file-name &optional test) |
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"Attempt to play the generated MIDI file |
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FILE-NAME is full path to lilypond file |
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If TEST is non-nil, the shell command is returned and is not run" |
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(when org-babel-lilypond-play-midi-post-tangle |
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(let ((midi-file (org-babel-lilypond-switch-extension file-name ".midi"))) |
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(if (file-exists-p midi-file) |
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(let ((cmd-string |
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(concat org-babel-lilypond-midi-command " " midi-file))) |
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(if test |
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cmd-string |
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(start-process |
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"\"Audition midi\"" |
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"*lilypond*" |
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org-babel-lilypond-midi-command |
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midi-file))) |
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(message "No midi file generated so can't play!"))))) |
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(defun org-babel-lilypond-toggle-midi-play () |
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"Toggle whether midi will be played following a successful compilation." |
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(interactive) |
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(setq org-babel-lilypond-play-midi-post-tangle |
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(not org-babel-lilypond-play-midi-post-tangle)) |
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(message (concat "Post-Tangle MIDI play has been " |
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(if org-babel-lilypond-play-midi-post-tangle |
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"ENABLED." "DISABLED.")))) |
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(defun org-babel-lilypond-toggle-pdf-display () |
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"Toggle whether pdf will be displayed following a successful compilation." |
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(interactive) |
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(setq org-babel-lilypond-display-pdf-post-tangle |
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(not org-babel-lilypond-display-pdf-post-tangle)) |
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(message (concat "Post-Tangle PDF display has been " |
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(if org-babel-lilypond-display-pdf-post-tangle |
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"ENABLED." "DISABLED.")))) |
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(defun org-babel-lilypond-toggle-png-generation () |
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"Toggle whether png image will be generated by compilation." |
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(interactive) |
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(setq org-babel-lilypond-gen-png (not org-babel-lilypond-gen-png)) |
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(message (concat "PNG image generation has been " |
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(if org-babel-lilypond-gen-png "ENABLED." "DISABLED.")))) |
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(defun org-babel-lilypond-toggle-html-generation () |
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"Toggle whether html will be generated by compilation." |
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(interactive) |
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(setq org-babel-lilypond-gen-html (not org-babel-lilypond-gen-html)) |
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(message (concat "HTML generation has been " |
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(if org-babel-lilypond-gen-html "ENABLED." "DISABLED.")))) |
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(defun org-babel-lilypond-toggle-pdf-generation () |
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"Toggle whether pdf will be generated by compilation." |
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(interactive) |
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(setq org-babel-lilypond-gen-pdf (not org-babel-lilypond-gen-pdf)) |
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(message (concat "PDF generation has been " |
|
375 |
(if org-babel-lilypond-gen-pdf "ENABLED." "DISABLED.")))) |
|
376 |
|
|
377 |
(defun org-babel-lilypond-toggle-arrange-mode () |
|
378 |
"Toggle whether in Arrange mode or Basic mode." |
|
379 |
(interactive) |
|
380 |
(setq org-babel-lilypond-arrange-mode |
|
381 |
(not org-babel-lilypond-arrange-mode)) |
|
382 |
(message (concat "Arrange mode has been " |
|
383 |
(if org-babel-lilypond-arrange-mode "ENABLED." "DISABLED.")))) |
|
384 |
|
|
385 |
(defun org-babel-lilypond-switch-extension (file-name ext) |
|
386 |
"Utility command to swap current FILE-NAME extension with EXT" |
|
387 |
(concat (file-name-sans-extension |
|
388 |
file-name) ext)) |
|
389 |
|
|
390 |
(defun org-babel-lilypond-get-header-args (mode) |
|
391 |
"Default arguments to use when evaluating a lilypond |
|
392 |
source block. These depend upon whether we are in arrange |
|
393 |
mode i.e. ARRANGE-MODE is t" |
|
394 |
(cond (mode |
|
395 |
'((:tangle . "yes") |
|
396 |
(:noweb . "yes") |
|
397 |
(:results . "silent") |
|
398 |
(:cache . "yes") |
|
399 |
(:comments . "yes"))) |
|
400 |
(t |
|
401 |
'((:results . "file") |
|
402 |
(:exports . "results"))))) |
|
403 |
|
|
404 |
(defun org-babel-lilypond-set-header-args (mode) |
|
405 |
"Set org-babel-default-header-args:lilypond |
|
406 |
dependent on ORG-BABEL-LILYPOND-ARRANGE-MODE" |
|
407 |
(setq org-babel-default-header-args:lilypond |
|
408 |
(org-babel-lilypond-get-header-args mode))) |
|
409 |
|
|
410 |
(provide 'ob-lilypond) |
|
411 |
|
|
412 |
;;; ob-lilypond.el ends here |