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Re: cut loadable outputs extra newlines
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From: |
Lawrence Velázquez |
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Subject: |
Re: cut loadable outputs extra newlines |
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Date: |
Sat, 13 Aug 2022 22:43:23 -0400 |
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User-agent: |
Cyrus-JMAP/3.7.0-alpha0-841-g7899e99a45-fm-20220811.002-g7899e99a |
On Sat, Aug 13, 2022, at 10:06 PM, Martin D Kealey wrote:
> I note that
> https://pubs.opengroup.org/onlinepubs/009696699/utilities/cut.html says:
> *> The elements in list can be repeated, can overlap, and can be specified
> in any order, but the bytes, characters, or fields selected shall be
> written in the order of the input data.*
>
> The intention behind this is so that cut can be implemented as a small
> state machine using just getchar, putchar, and a counter. This avoids
> copying via a line buffer, and that implies there should be no line-length
> limit.
That is explicitly required:
INPUT FILES
The input files shall be text files, except that line lengths
shall be unlimited.
--
vq