/usr/bin/lilypond-invoke-editor is in lilypond 2.18.2-4.1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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!#
;;;; lilypond-invoke-editor.scm -- Invoke an editor in file:line:column mode
;;;; Copyright (C) 2005--2012 Jan Nieuwenhuizen <janneke@gnu.org>
;;;; This file is part of LilyPond, the GNU music typesetter.
;;;;
;;;; LilyPond 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.
;;;;
;;;; LilyPond 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 LilyPond. If not, see <http://www.gnu.org/licenses/>.
;; gui debug helper
;; (define (exit x) (system "sleep 10"))
(use-modules
(ice-9 getopt-long)
(ice-9 regex)
(srfi srfi-1)
(srfi srfi-13)
(srfi srfi-14))
(define PROGRAM-NAME "lilypond-invoke-editor")
(define TOPLEVEL-VERSION "2.18.2")
(define DATADIR "/usr/share")
(define COMPILE-TIME-PREFIX
(format #f "~a/lilypond/~a" DATADIR TOPLEVEL-VERSION))
;; argv0 relocation -- do in wrapper?
(define LILYPOND_DATADIR
(let* ((prefix
(or (getenv "LILYPOND_DATADIR")
(dirname (dirname (car (command-line)))))))
(if (eq? prefix (dirname DATADIR)) COMPILE-TIME-PREFIX
(format #f "~a/share/lilypond/~a"
prefix TOPLEVEL-VERSION))))
(define-public _ gettext)
(define (show-version port)
(format port "~a (GNU LilyPond) ~a\n" PROGRAM-NAME TOPLEVEL-VERSION))
(define (show-help port)
(format port (_ "Usage: lilypond-invoke-editor [textedit://]FILE:LINE:CHAR:COLUMN
Visit a file and position the cursor.
Options:
-h, --help show this help
-v, --version show version
")))
(define (parse-options args)
(let* ((options (getopt-long args
'((help (single-char #\h))
(version (single-char #\v)))))
(files (cdr (assq '() options))))
(if (assq 'help options)
(begin
(show-version (current-output-port))
(show-help (current-output-port))
(exit 0)))
(if (assq 'version options)
(begin (show-version (current-output-port)) (exit 0)))
(show-version (current-error-port))
files))
(define (re-sub re sub string)
(regexp-substitute/global #f re string 'pre sub 'post))
;; FIXME: I'm going slowly but certainly mad; I really cannot find the
;; scm library function for this.
(define (unquote-uri uri)
(re-sub "%([A-Fa-f0-9]{2})"
(lambda (m)
(string (integer->char (string->number (match:substring m 1) 16))))
uri))
(define (is-textedit-uri? uri)
(string-match "^textedit:" uri))
(define (dissect-uri uri)
(let* ((match (string-match "textedit://(.*):([^:]+):([^:]+):(.*)$" uri)))
(if match
(list (unquote-uri (match:substring match 1))
(match:substring match 2)
(match:substring match 3)
(match:substring match 4))
(begin
(format (current-error-port) (_ "invalid textedit URI: ~a") uri)
(newline (current-error-port))
(format (current-error-port) (_ "expect: textedit://FILE:LINE:CHAR:COLUMN"))
(newline (current-error-port))
(exit 1)))))
(define PLATFORM
(string->symbol
(string-downcase
(car (string-tokenize (vector-ref (uname) 0) char-set:letter)))))
(define (running-from-gui?)
(let ((have-tty? (isatty? (current-input-port))))
;; If no TTY and not using safe, assume running from GUI.
(not have-tty?)))
(define (run-editor uri)
(let*
((command (apply get-editor-command (dissect-uri uri)))
(status (system command)))
(if (not (= status 0))
(begin
(format (current-error-port)
(_ "failed to invoke editor: ~a") command)
(exit 1)))))
(define (run-browser uri)
(system
(if (getenv "BROWSER")
(format #f "~a ~a" (getenv "BROWSER") uri)
(format #f "firefox -remote 'OpenURL(~a,new-tab)'" uri))))
(define (strip-framework-path var)
(define pat "lilypond/usr")
(if (getenv var)
(let*
((val (getenv var))
(paths (string-split val #\:))
(without (remove (lambda (s) (string-contains s pat))
paths)))
(if (not (= (length without)
(length paths)))
(setenv var (string-join without ":"))))))
(define (main args)
(let ((files (parse-options args)))
(if (running-from-gui?)
(redirect-port (current-error-port)
(open-file (string-append
(or (getenv "TMP")
(getenv "TEMP")
"/tmp")
"/lilypond-invoke-editor.log") "a")))
(if (not (= (length files) 1))
(begin
(show-help (current-error-port))
(exit 2)))
(set! %load-path (cons LILYPOND_DATADIR %load-path))
(primitive-eval '(use-modules (scm editor)))
(strip-framework-path "LD_LIBRARY_PATH")
(let* ((uri (car files)))
(if (is-textedit-uri? uri)
(run-editor uri)
(run-browser uri)))))
(main (command-line))
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