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Re: Broken parse on `'${'`
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From: |
Eric Blake |
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Subject: |
Re: Broken parse on `'${'` |
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Date: |
Thu, 07 Jul 2005 22:02:19 -0600 |
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User-agent: |
Mozilla Thunderbird 1.0.2 (Windows/20050317) |
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According to Lev Bishop on 7/7/2005 9:50 PM:
>>bash$ echo `echo '${'`
>>
>
> Actually, this is a bad example, because even if bash did parse
> correctly, there would be still an incomplete ${ substitution for the
> outer echo
No, because by POSIX XCU 2.6.3, "The results of command substitution shall
not be processed for further tilde expansion, parameter expansion, command
substitution, or arithmetic expansion." So the outer echo should behave
the same as if it had been invoked "echo \$\{", and print ${.
- --
Life is short - so eat dessert first!
Eric Blake ebb9@byu.net
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