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Re: empty pattern: info clarification?
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From: |
Paul Eggert |
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Subject: |
Re: empty pattern: info clarification? |
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Date: |
Wed, 04 Jan 2012 09:52:38 -0800 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:8.0) Gecko/20111115 Thunderbird/8.0 |
On 01/04/12 01:24, Voelker, Bernhard wrote:
> Thanks, I like it.
OK, thanks, I pushed what I hope is an even slightly better
version that talks about matching empty and blank lines.
It's like what I emailed previously, except the last paragraph
now looks like this:
To match empty lines, use the pattern @samp{^$}. To match blank
lines, use the pattern @samp{^[[:blank:]]*$}. To match no lines at
all, use the command @samp{grep -f /dev/null}.