'typeset' and family accept invalid identifiers

• Informador: mcdutchie
• Propietario: magicant
• Tipo: Bugs
• Estado: Cerrado
• Componente: shell-main
• Hito: (Ninguno)
• Prioridad: 5 - Medium
• Gravedad: 5 - Medium
• Resolución: Ninguno
• Fichero: Ninguno

Details Responder

$ readonly a\ b=c
$ readonly a\ b=d
readonly: $a b is read-only
$ echo ${a b}
syntax error: invalid character ` ' in parameter expansion

If that is an invalid expansion, then 'readonly' should not have succeeded either.

$ export a\ b=c
$ env | grep ^a\ b=
a b=c

Allowing identifiers with spaces to be exported also does not seem like a good thing.

Ticket History (3/3 Histories)

2019-07-10 04:51 Updated by: mcdutchie

• New Ticket "'typeset' and family accept invalid identifiers" created

2019-07-11 00:52 Updated by: magicant

Comentario Responder

But GNU's env command supports space-including variable names and POSIX does not seem to disallow such behavior.

$ env 'a b=c' printenv 'a b'
c

I would rather think the shell should support parameter expansion with arbitrary names, if anything should be fixed.

2023-09-14 01:19 Updated by: magicant

• Estado Update from Open to Cerrado

Comentario Responder

Moved to https://github.com/magicant/yash/issues/28