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From: Greg Minshall <minshall@umich.edu>
To: Jens Schmidt <jschmidt4gnu@vodafonemail.de>
Cc: Sebastian Miele <iota@whxvd.name>, emacs-devel@gnu.org
Subject: Re: Emacs script options
Date: Thu, 23 Nov 2023 20:22:56 -0800	[thread overview]
Message-ID: <448988.1700799776@archlinux> (raw)
In-Reply-To: <5eac9978-270e-40b2-8272-dabb29ec5daa@vodafonemail.de>

Jens,

> While there are surely other methods to achieve what below code
> does, supposedly also more stable ones, I wanted to go for
> brevity to keep the non-script overhead small:

yes, i would say the below code *is* sufficiently hacky!

but, i would go back to my suggestion for "-x".  i think it would be a
real benefit to those wanting to write general purpose scripts using
Emacs as the "engine" (or whatever).

cheers, Greg

> ------------------------- escript -------------------------
> #!/bin/sh
> : ; exec emacs --script "$0" -- "$@" #; -*- lexical-binding: t -*-
> 
> ;; Work around `eval-buffer' not recognizing the lexical-binding
> ;; stanza when the comment containing it does not start at first
> ;; column (bug#67321).
> (unless (ignore-errors (funcall (let ((v t)) (lambda () v))))
>   (with-current-buffer (car eval-buffer-list)
>     (goto-char (point-min)) (search-forward "; -*-")
>     (delete-region (point-min) (match-beginning 0))
>     (eval-buffer)))
> 
> ;; Script payload.
> (message "%S:%S" lexical-binding command-line-args-left)
> 
> ;; Explicitly exit Emacs to not return from the second-level
> ;; `eval-buffer'.
> (kill-emacs 0)
> 
> ;;; Local Variables:
> ;;; mode: emacs-lisp
> ;;; End:
> ------------------------- escript -------------------------



  parent reply	other threads:[~2023-11-24  4:22 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-11-18  3:13 (unknown) Greg Minshall
2023-11-18  7:05 ` (unknown) Jim Porter
2023-11-18 14:10   ` (unknown) -x behavior change Greg Minshall
2023-11-18  7:36 ` Emacs script options Eli Zaretskii
2023-11-18 14:38   ` Greg Minshall
2023-11-18 16:20     ` Eli Zaretskii
2023-11-18 19:36       ` Greg Minshall
2023-11-19  5:55         ` Eli Zaretskii
2023-11-27  3:29   ` Greg Minshall
2023-11-27 12:59     ` Eli Zaretskii
2023-11-27 19:32       ` Greg Minshall
2023-11-18 19:18 ` Sebastian Miele
2023-11-18 19:49   ` Greg Minshall
2023-11-19 21:39     ` Jens Schmidt
2023-11-19 21:47       ` Jens Schmidt
2023-11-20  1:19         ` Greg Minshall
2023-11-21 21:13           ` Jens Schmidt
2023-11-22 18:17             ` Sebastian Miele
2023-11-22 20:18               ` Jens Schmidt
2023-11-24  4:22             ` Greg Minshall [this message]
2023-11-26 18:07               ` Jens Schmidt
2023-11-20  6:10         ` Sebastian Miele
2023-11-20 20:10           ` Jens Schmidt
2023-11-21  8:51             ` Sebastian Miele
2023-11-19  5:04   ` Bob Rogers
2023-11-19  6:21     ` Eli Zaretskii

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