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Re: "sed --debug" feature

From: Assaf Gordon
Subject: Re: "sed --debug" feature
Date: Mon, 30 Jul 2018 22:53:02 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

Hello Eric, Jim,

On 27/07/18 07:00 AM, Eric Blake wrote:
On 07/27/2018 05:28 AM, Assaf Gordon wrote:
While investigating the two recent bugs [1][2],
I developed some debugging code for sed, which makes
troubleshooting much easier.

I think it is actually fine for mainline - the number of user bugs we've been able to identify with 'sort --debug', and more recently 'date --debug', makes things like this worth their weight in gold.

That's a good point.

Attached is an improved patch:
- debug is always compiled (no more ./configure --enable-debugging ,
  which is discouraged for gnu programs)
- debug output goes to stdout (like sort)
- added mention in the manual

comments welcomed,
 - assaf

Attachment: 0001-sed-add-debug-feature.patch.gz
Description: application/gzip

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