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Re: [bug-gawk] Awk gets stucked if no filename

From: Neil R. Ormos
Subject: Re: [bug-gawk] Awk gets stucked if no filename
Date: Wed, 29 Nov 2017 12:42:16 -0600 (CST)

address@hidden wrote:

> Hi.

> "Neil R. Ormos" <address@hidden> wrote:

>> address@hidden wrote:
>> > Xavier Martinez Serrano <address@hidden> wrote:

>> As the manual is currently formulated, is it
>> entirely fair to characterize an empty string,
>> which has been provided as a command-line
>> argument, as something other than a filename, so
>> as to satisfy the condition "when no filenames are
>> named on the command line"?

> Look again:

>       f=""
>       awk '{print("hi")}'  $f

> The expansion of $f in this instance is not the
> explicit null string ("") but rather *nothing*.
> [...] In that case, gawk has no command line
> arguments, so it reads standard input.

Of course you're right. Apologies for the spurious comments.

Best regards,

--Neil Ormos

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