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[bug #48752] Simple arithmetic functionality
From: |
Mirko Vogt |
Subject: |
[bug #48752] Simple arithmetic functionality |
Date: |
Wed, 10 Aug 2016 19:50:50 +0000 (UTC) |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0 |
URL:
<http://savannah.gnu.org/bugs/?48752>
Summary: Simple arithmetic functionality
Project: GNU GRUB
Submitted by: mirco
Submitted on: Wed 10 Aug 2016 07:50:47 PM GMT
Category: None
Severity: Major
Priority: 5 - Normal
Item Group: Feature Request
Status: None
Privacy: Public
Assigned to: None
Originator Name:
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Release:
Release: Git master
Reproducibility: Every Time
Planned Release: None
_______________________________________________________
Details:
I'd like to ask for very basic arithmetic functionality for the scripting
engine of GRUB, mainly addition / subtraction, maybe even some more by e.g.
taking over code from `let` or the `$((..))` syntax from *sh.
Very concrete use case would be a typical ping-pong scenario:
Counting (failed) boot attempts, storing them in the GRUB environment block
and switching to a failsafe / second-system / you-name-it, once booting into a
system failed `n` times.
Yes, this can be done without arithmetic operation.
But apart from it "just not being nice" (however I think nice - as in:
readable - code is quite a point for the essential part of booting a system),
I can think of quite a few other scenarios where basic arithmetic would really
add to GRUB.
Thank you for having read my feature request till the end :)
_______________________________________________________
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