On Sat, 2009-04-25 at 14:49 -0400, Chet Ramey wrote:
> No, there really aren't any tabs in the value of ${parameter}. For
> some reason, you use `echo -e' to send input to `dumpit'. The whole
> reason the -e option to echo exists is to expand backslash escapes,
> and it dutifully expands \t to ta
Bill Gradwohl wrote:
> On Fri, 2009-04-24 at 18:54 -0400, Chet Ramey wrote:
>> I'm not quite sure what this is supposed to demonstrate. In the cases
>> where you have specified the tab character correctly ($'\t'), it's
>> converted into a tab before matching is attempted.
> I respectfully disagr
Bill Gradwohl writes:
> And I also used printf as you suggested, and they both produce the same
> output.
No, they don't.
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
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"And now for something completely different."
On Sat, 2009-04-25 at 15:22 +0200, Andreas Schwab wrote:
> You *still* use echo -e!
And I also used printf as you suggested, and they both produce the same
output. What's the problem?
--
Bill Gradwohl
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Bill Gradwohl writes:
> Please run the script and see for yourself.
You *still* use echo -e!
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
On Sat, 2009-04-25 at 14:17 +0200, Andreas Schwab wrote:
> Your hex dump proves nothing. Your use of `echo -e' mangles the value.
> Only `printf %s' can output the literal value of its argument.
The fixed script augmented with printf is attached. They both produce
the same results, so printf or e
Bill Gradwohl writes:
> I did a hex dump to prove
Your hex dump proves nothing. Your use of `echo -e' mangles the value.
Only `printf %s' can output the literal value of its argument.
Andreas.
--
Andreas Schwab, sch...@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5
On Fri, 2009-04-24 at 18:54 -0400, Chet Ramey wrote:
> I'm not quite sure what this is supposed to demonstrate. In the cases
> where you have specified the tab character correctly ($'\t'), it's
> converted into a tab before matching is attempted.
I respectfully disagree, and I believe I have pro
Bill Gradwohl wrote:
> On Fri, 2009-04-24 at 13:50 -0400, Greg Wooledge wrote:
>> parameter=${parameter//[[:space:]]/}
> I never saw that before. I checked my man bash for version bash-3.2-30
> from Fedora 10 and there is no mention of it. Thanks.
Look at the description of character classes in th
Bill Gradwohl wrote:
> On Fri, 2009-04-24 at 13:50 -0400, Greg Wooledge wrote:
>> parameter=${paramter//[ $'\t']/}
>
> I experimented a bit. See the attachment.
>
>
> The first 3 dumpit outputs are expected. The next 2 are not. The last 2
> show what I would have expected from the previous 2.
I
Bill Gradwohl writes:
> The $' inside the [] is being used up but not in any way I expected.
> Clearly, $'\t' is not representing a tab character, nor is it just using
> the $ as a character in its own right. What is it doing?
Since $parameter does not contain any tab characters there is no tab
On Fri, 2009-04-24 at 13:50 -0400, Greg Wooledge wrote:
> parameter=${paramter//[ $'\t']/}
I experimented a bit. See the attachment.
The first 3 dumpit outputs are expected. The next 2 are not. The last 2
show what I would have expected from the previous 2.
The $' inside the [] is being used up
On Fri, 2009-04-24 at 13:50 -0400, Greg Wooledge wrote:
> parameter=${parameter//[[:space:]]/}
I never saw that before. I checked my man bash for version bash-3.2-30
from Fedora 10 and there is no mention of it. Thanks.
>
> or
>
> parameter=${paramter//[ $'\t']/}
I tried all the variations except
Greg Wooledge wrote:
> From an older bash(1) manual:
>
>Words of the form $'string' are treated specially. The word expands to
>string, with backslash-escaped characters replaced as specifed by the
>ANSI C standard.
>
> Bash 4 manual:
>
> Words of the form $st
On Fri, Apr 24, 2009 at 11:32:09AM -0600, Bill Gradwohl wrote:
> What I want to do is remove all the space and tab characters.
parameter=${parameter//[[:space:]]/}
or
parameter=${paramter//[ $'\t']/}
>From an older bash(1) manual:
Words of the form $'string' are treated specially. The
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