Cygwin man does not recognise PerlRE ?

Cygwin man does not recognise PerlRE ?

[Andrey Repin]

Greetings, All!

It was bugging me for quite some time now. I don't like POSIX RE - they are
cumbersome and unwieldy.
Is there a possibility to build man for Cygwin with PerlRE support?


-- 
With best regards,
Andrey Repin
Friday, October 16, 2015 17:58:20

Sorry for my terrible english...


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Re: Cygwin man does not recognise PerlRE ?

[Yaakov Selkowitz]

On Fri, 2015-10-16 at 19:33 +0300, Andrey Repin wrote:
> It was bugging me for quite some time now. I don't like POSIX RE - they are
> cumbersome and unwieldy.
> Is there a possibility to build man for Cygwin with PerlRE support?

Presumably that would come via PCRE, which man-db does not currently
support.  Perhaps PTC upstream.

--
Yaakov



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Re: Cygwin man does not recognise PerlRE ?

[Warren Young]

On Oct 16, 2015, at 12:18 PM, Yaakov Selkowitz wrote:
> 
> On Fri, 2015-10-16 at 19:33 +0300, Andrey Repin wrote:
>> Is there a possibility to build man for Cygwin with PerlRE support?
> 
> Presumably that would come via PCRE, which man-db does not currently
> support.  Perhaps PTC upstream.

If there were such a mode, would it be allowed to enable it, since that would effectively put libpcre into Base?


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Re: Cygwin man does not recognise PerlRE ?

[Warren Young]

On Oct 16, 2015, at 10:33 AM, Andrey Repin <anrdaemon@yandex.ru> wrote:
> 
> Is there a possibility to build man for Cygwin with PerlRE support?

I’m curious: what sort of incantations do you frequently give to man which involve REs?

Maybe I’m just too old-school, but I wasn’t aware that modern man programs even supported REs.  Back when I was a boy, we said “man -k whatsit” and we liked it! :)

I think if I wanted to grep man pages with Perl syntax, I’d say

   grep -PRsl whatsit /usr/share/man

Poking around on machines near me, I see Lucifredi’s version of man — which doesn’t seem to support regexes — on OS X 10.10, FreeBSD 10.1, and CentOS 5.  Apparently RHEL moved to man-db in EL6 or EL7, since it’s on an EL7 box nearby.
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Re: Cygwin man does not recognise PerlRE ?

[Yaakov Selkowitz]

On Fri, 2015-10-16 at 14:19 -0600, Warren Young wrote:
> On Oct 16, 2015, at 12:18 PM, Yaakov Selkowitz wrote:
> > 
> > On Fri, 2015-10-16 at 19:33 +0300, Andrey Repin wrote:
> >> Is there a possibility to build man for Cygwin with PerlRE support?
> > 
> > Presumably that would come via PCRE, which man-db does not currently
> > support.  Perhaps PTC upstream.
> 
> If there were such a mode, would it be allowed to enable it, since that
> would effectively put libpcre into Base?

grep already requires libpcre1.

--
Yaakov



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Re: Cygwin man does not recognise PerlRE ?

[Andrey Repin]

Greetings, Yaakov Selkowitz!

>> It was bugging me for quite some time now. I don't like POSIX RE - they are
>> cumbersome and unwieldy.
>> Is there a possibility to build man for Cygwin with PerlRE support?

> Presumably that would come via PCRE, which man-db does not currently
> support.  Perhaps PTC upstream.

All my Linux boxes recognize PerlRE in man. >.<
Given, they are all Debian based... And most of them are Ubuntu. I don't know
how it is widespread.


-- 
With best regards,
Andrey Repin
Saturday, October 17, 2015 03:16:53

Sorry for my terrible english...


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Re: Cygwin man does not recognise PerlRE ?

[Andrey Repin]

Greetings, Warren Young!

> On Oct 16, 2015, at 10:33 AM, Andrey Repin <anrdaemon@yandex.ru> wrote:
>> 
>> Is there a possibility to build man for Cygwin with PerlRE support?

> I’m curious: what sort of incantations do you frequently give to man which involve REs?

Typical ones. F.e.

^\s+<verse>\b

to quickly find term references.

> Maybe I’m just too old-school, but I wasn’t aware that modern man programs
> even supported REs.  Back when I was a boy, we said “man -k whatsit” and we liked it! :)

> I think if I wanted to grep man pages with Perl syntax, I’d say

>    grep -PRsl whatsit /usr/share/man

> Poking around on machines near me, I see Lucifredi’s version of man — which
> doesn’t seem to support regexes — on OS X 10.10, FreeBSD 10.1, and CentOS 5.
> Apparently RHEL moved to man-db in EL6 or EL7, since it’s on an EL7 box nearby.


-- 
With best regards,
Andrey Repin
Saturday, October 17, 2015 03:18:02

Sorry for my terrible english...

Re: Cygwin man does not recognise PerlRE ?

[Andrey Repin]

Greetings, Warren Young!

>>>>> Is there a possibility to build man for Cygwin with PerlRE support?
>>>> 
>>>> Presumably that would come via PCRE, which man-db does not currently
>>>> support.  Perhaps PTC upstream.
>>> 
>>> If there were such a mode, would it be allowed to enable it, since that would effectively put libpcre into Base?
>> 
>> Maybe someone can rebuild less(1) to build with PCRE, and then you can set MANPAGER=less.

> I don’t think Andrey means PCRE when searching the man page he is reading
> right now.

But I did mean exactly that.
Sorry, probably I should have been clearer. And, well, think my question more
thoroughly.
It seems like Mike's right, and the actual culprit is "less", rather than man.


-- 
With best regards,
Andrey Repin
Saturday, October 17, 2015 03:24:49

Sorry for my terrible english...

Re: Cygwin man does not recognise PerlRE ?

[Warren Young]

On Oct 16, 2015, at 2:29 PM, Mike Cappella wrote:
> 
>> On Oct 16, 2015, at 12:18 PM, Yaakov Selkowitz wrote:
>>> 
>>> On Fri, 2015-10-16 at 19:33 +0300, Andrey Repin wrote:
>>>> Is there a possibility to build man for Cygwin with PerlRE support?
>>> 
>>> Presumably that would come via PCRE, which man-db does not currently
>>> support.  Perhaps PTC upstream.
>> 
>> If there were such a mode, would it be allowed to enable it, since that would effectively put libpcre into Base?
> 
> Maybe someone can rebuild less(1) to build with PCRE, and then you can set MANPAGER=less.

I don’t think Andrey means PCRE when searching the man page he is reading right now.  I think he means he wants PCRE support in “man --regex whatsit”.


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Re: Cygwin man does not recognise PerlRE ?

[Mike Cappella]

> On Oct 16, 2015, at 12:18 PM, Yaakov Selkowitz wrote:
> > 
> > On Fri, 2015-10-16 at 19:33 +0300, Andrey Repin wrote:
> >> Is there a possibility to build man for Cygwin with PerlRE support?
> > 
> > Presumably that would come via PCRE, which man-db does not currently
> > support.  Perhaps PTC upstream.
> 
> If there were such a mode, would it be allowed to enable it, since that would effectively put libpcre into Base?

Maybe someone can rebuild less(1) to build with PCRE, and then you can set MANPAGER=less.
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