[TUHS] Discuss of style and design of computer programs from a user stand point

Warner Losh imp at bsdimp.com
Mon May 8 01:13:11 AEST 2017


On Sat, May 6, 2017 at 7:42 PM, Noel Hunt <noel.hunt at gmail.com> wrote:
> I was about to suggest using the Plan9 port utilities of the
> same name but it seems 'uniq' is not coded to handle Runes
> (aka utf-8). I don't imagine it would be hard to re-write it to
> handle utf-8.

I guess I should have been clearer on what wouldn't work. It can't
possibly work for Japanese and Chinese where words aren't separated by
whitespace. Would cause problems in hybrid languages where words can
be composed of logograms and sonograms (say Japanese which often use a
few Kanji with hiragana endings that then run into hiragana particles
or other grammar elements). Can't work without modification (using
class names) for Cyrillic because there's no A or Z in words there.
Won't work in any language that has a discontiguous set of letters,
which includes many western european languages since all the accented
or otherwise decorated letters aren't in the range A-Z.

So whether or not the underlying tools can handle UTF-8 encoding,
there are problems with the original.

If you used:

 tr -cs "[:alpha:]" '\n' | tr "[:upper:]" "[:lower:]" | sort | uniq -c
| sort -rn | sed ${1}q

you'd still have issues with languages that don't use word separators,
or write non-alphabetically.

Warner

> On Sun, May 7, 2017 at 11:15 AM, Warner Losh <imp at bsdimp.com> wrote:
>>
>> On Sat, May 6, 2017 at 1:50 PM, Bakul Shah <bakul at bitblocks.com> wrote:
>> > tr -cs A-Za-z '\n' | tr A-Z a-z | sort | uniq -c | sort -rn | sed ${1}q
>>
>> The cool thing about this thread is that I learned two things: what tr
>> -s does, and the Nq does for sed...
>>
>> Sadly, this doesn't work so well for text that isn't ASCII-7 english...
>>
>> Warner
>
>


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