#184 MPI list funcs LREMOVE doesn't act on single item {null:}

[Crissa Kentavr]

List functions lcommon, lremove, etc don't act upon a
passed, given argument of null.

This means you have to pass two nulls in a list to
remove null items from a list, or a null at the
begining (but not end) of a passed list.

Null items in a passed list are just lost.

Examples:
@mpi {mklist:{null:},one,two}
"
one
two"

@mpi {mklist:{null:},one,two,{null:}}
"
one
two
"

@mpi {lremove:{mklist:{null:},one,two,{null:}},one}
"
two"

@mpi
{lremove:{mklist:{null:},one,two,{null:}},{mklist:{null:}}}
"
one
two"

@mpi
{lremove:{mklist:{null:},one,two,{null:}},{mklist:one,{null:}}}
"
two"

@mpi
{lremove:{mklist:{null:},one,two,{null:}},{mklist:{null:},{null:}}}
"one
two"

Inconsistent (and annoying).

This may turn into a feature request for an lstrip command?

[Natasha O'Brien]

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Should be fixed in CVS.

[Kyle Hamilton]

Logged In: YES
user_id=7718

Set pending so that crissa has the chance to test and
respond if not fixed.

[Natasha O'Brien]

Logged In: YES
user_id=9698

sombre told me out-of-band that it still doesn't work right.
IIRC the test he said failed was that:

{lremove:{mklist:{null},one,two,{null}},}

still had a {null} in it.

[Kyle Hamilton]

Logged In: YES
user_id=7718

Still had literal '{null}', or still had a null entry?

Assigning to sombre for clarification.