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From: | Jim Porter |
Subject: | bug#53517: 29.0.50; [PATCH] `eshell-eval-using-options' :preserve-args breaks :external handling in some cases |
Date: | Mon, 24 Jan 2022 22:29:20 -0800 |
On 1/24/2022 9:19 PM, Jim Porter wrote:
On 1/24/2022 5:11 PM, Jim Porter wrote:(It might be nice to fix that too, but I think it's still useful to keep the original raw args around unchanged. Improving "-" support could be done later.)Actually, I'll do that now. Doing so fixes an issue I found in the implementation of `eshell/cat'. "cat -" should read from stdin (and the Eshell implementation should use the external /bin/cat to do this), but it was getting parsed as "cat", so it erroneously thought there were *no* input files.
Just a note: `cat' with no args *should* read from stdin, but this doesn't actually work in Eshell yet; to read from stdin, you need to explicitly say "cat -" or "*cat". I plan to fix these bits in a separate bug, since I have a WIP patch series to allow piping to Lisp functions in Eshell. That involves rewriting most of `eshell/cat', so I figured I may as well just fix it once (later) instead of twice.
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