The following issue has been SUBMITTED.
======================================================================
https://austingroupbugs.net/view.php?id=1852
======================================================================
Reported By: steffen
Assigned To:
======================================================================
Project: 1003.1(2024)/Issue8
Issue ID: 1852
Category: Shell and Utilities
Type: Clarification Requested
Severity: Editorial
Priority: normal
Status: New
Name: steffen
Organization:
User Reference:
Section: 2.52
Page Number: 2479
Line Number: 80376 ff.
Interp Status: ---
Final Accepted Text:
======================================================================
Date Submitted: 2024-08-14 23:38 UTC
Last Modified: 2024-08-14 23:38 UTC
======================================================================
Summary: Clarify "$@[:$@:]" (with $# -eq 0)
Description:
..where [::] means repetition, aka "$@$@$@" etc.
The standard says
80376 unspecified. If there are no positional
parameters, the expansion of '@' shall generate zero
80377 fields, even when '@' is within
double-quotes; however, if the expansion is embedded
80378 within a word which contains one or more
other parts that expand to a quoted null string,
80379 these null string(s) shall still produce an
empty field, except that if the other parts are all
80380 within the same double-quotes as the '@', it
is unspecified whether the result is zero fields
80381 or one empty field.
In a test file
one() { echo "$# 1<$1>"; }
two() { one "$@"; }
twox() { one "$@$@"; }
two
two x
twox
twox x
shells will give different results for the argument-less call to twox().
(Here on my box bash(1) is the only one which expands "$@$@" to nothing.)
Desired Action:
Please add wording that covers successive "empty field" expansions.
======================================================================
Issue History
Date Modified Username Field Change
======================================================================
2024-08-14 23:38 steffen New Issue
2024-08-14 23:38 steffen Name => steffen
2024-08-14 23:38 steffen Section => 2.52
2024-08-14 23:38 steffen Page Number => 2479
2024-08-14 23:38 steffen Line Number => 80376 ff.
======================================================================
