${!foo*} again

[phidebian]

I open this as a bug, but it may be a pilot error, if so do close it as 'not a bug'.

I see this commit 4a8072e

So I am inclined to think I may misunderstand something, yet I got this and dunno if this is expected.

$ a=1
$ a.a=2
$ a.b=3
$ a.c=4
$ a.aa=5
$ a.ac=6

$ echo "${!a.a*}"
a.a a.a a.aa a.ac

This a.a a.a is confusing, I was more expecting a.a a.aa a.ac

The commit says

    This bugfix is backported from the abandoned ksh 93v- beta, so AT&T
    intended this change. It also makes ksh work like bash in this.

Yet doing a bash approximation I got

$ a=1
$ a_a=2
$ a_b=3
$ a_c=4
$ a_aa=5
$ a_ac=6
$ echo "${!a_a*}"
a_a a_aa a_ac

I can not compile a commit that old, so I can't revert back to prior this commit...

If this is expected, then we may close this and I will fix my scripts to skip over the repetition...

Cheers

[McDutchie]

The repetition is a bug. Thanks for the report.

We backported the bug from ksh 93v-. Looks like the bug only occurs with namespaces (as in . in the variable name).

[phidebian]

I didn't noticed in my previous post that

$ echo "${!a.a*}"
a.a a.a a.aa a.ac

$ echo "${#a.a*}"
3

[phidebian]

Sorry, post colision, ok, this is a bug, I look...

Yes without '.', ksh93 works as bash

[phidebian]

Submitted pr #876

in varsub()
In the M_NAMESCAN path, avoid repeating the id if it has some '.'