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From: | dalanicolai |
Subject: | bug#57854: 29.0.50; Different exit code in Emacs and terminal for identical process |
Date: | Fri, 16 Sep 2022 21:44:53 +0200 |
I don't understand the answer well (my knowledge about computers is very limited),i.e. I do not immediately understand what it means for a file to be a tty.But also, I think the isatty() is about the TOC file, i.e. the file given as INFILE (after the `<`)But I am not giving any INFILE (which would make the command add the TOC to the file given as argument),Instead I simply provide a single filepath as argument so that the command simply prints the TOC.(I hope this answer makes sense, I might be misunderstanding something)On Fri, 16 Sept 2022 at 13:00, Eli Zaretskii <eliz@gnu.org> wrote:> From: dalanicolai <dalanicolai@gmail.com>
> Date: Fri, 16 Sep 2022 12:00:09 +0200
>
> When looking into the `pdftocio` package I find the following piece of code
>
> ```
> try:
> with open_pdf(path_in) as doc:
> if toc_file.isatty() or print_toc:
> # no input from user, switch to output mode and extract the toc
> # of pdf
> toc = read_toc(doc)
> if len(toc) == 0:
> print("error: no table of contents found", file=sys.stderr)
> sys.exit(1)
>
> if readable:
> print(pprint_toc(toc))
> else:
> print(dump_toc(toc), end="")
> sys.exit(0)
>
> # an input is given, so switch to input mode
> toc = parse_toc(toc_file)
> write_toc(doc, toc)
> ```
Note that the above distinguishes between TTY and non-TTY input, and
call-process works via the non-TTY case, AFAIU. So maybe what you see
is entirely expected?
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