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From buboo@alf.uib.no (Ove Ruben R Olsen)
Subject: Re: Good names for vi macros
Date: Wed, 5 Feb 92 11:08:28 GMT
Status: O
Jan Van den Bussche (vdbuss@bigeye.cs.indiana.edu) writes:
>I hope this is not something which was already discussed at length here, or
>worse, a FAQ.
This was discussed last summer I belive... :-) AND it should be in a VI-faq.
>
>My question is: does anyone has suggestions concerning which names to choose
>for naming macros? For example, it is probably not a good idea to remap the
>"cursor" keys k,h,j,l (which are actually already macros themselves)
>to other commands. More generally, i frequently have a hard time finding
>a name for a certain macro, that is not yet "occupied".
>From the UCB-docs on VI (vi.chars.Z in the VI/EX archives):
^A Unused.
^C Unused.
^K Unused.
^O Unused.
^S Unused. Some teletype drivers use ^S to
suspend output until ^Q is.
^X Unused.
^\ Unused.
^_ Unused. Reserved as the command character
for the Tektronix 4025 and 4027 terminal.
* Unused.
K Unused.
V Unused.
\ Unused.
_ Unused.
g Unused.
q Unused.
v Unused.
~ Unused.
---
NOTE that ^S is not a too wise char to map, unless you are into heavy
pain or wizzardry :-)
Instead of maping one char at the time you can map two and three chars.
This will expand your "map-space" a lot.
I considder this The Right Way to do it, as all of VI's commands are valubale
in general editing. In this way it is also simpler to find memonics for
your macros.
For instance, in one of my .exrc files i may have this two mappings:
:map #e :wq!^M
:map! #e ^[:wq!^M
When in command mode I can hit #e and exit the editor. When in one of the
textmodes, I can also hit #e and I'll exit the editor. I've used #e due to
that #e is not a commom key-combination for me. Your milage may vary.
OR:
:map #n :w!^M:n^M
:map! #n ^[:w!^M:n^M
To get on to the next file in a multifile editing session.
Keeping the same chars to both :map and :map! saves me from remebering to
many macros.
Instead of :map! one can also use abbrevations. This is perhaps a better way
to do it, 'cuz one don't have to take care of the timelimit of :map!.
As a general rule: One should not alter the command set, only expand it.
>
>Thanks in advance,
>
>--Jan Van den Bussche, vdbuss@cs.indiana.edu
\Ruben.
--
Ove Ruben R Olsen, Proffessional VI user. EMAIL: rubenro@viggo.blh.no
Also known as "The Gnarfer from Hell". (Registered character of ORRO.)
Maintaining the Largest VI/EX-STUFF Archive in the WORLD (alf.uib.no)
:wq!
From steinbac@hpl-opus.hpl.hp.com (Guenter Steinbach)
Subject: Re: Good names for vi macros
Date: 7 Feb 92 20:20:48 GMT
Status: O
> / hpl-opus:comp.editors / buboo@alf.uib.no (Ove Ruben R Olsen) / 3:08 am Feb 5, 1992 /
>
> Instead of maping one char at the time you can map two and three chars.
> This will expand your "map-space" a lot.
> I considder this The Right Way to do it, as all of VI's commands are valubale
> in general editing. In this way it is also simpler to find memonics for
> your macros.
Right. I use a lot of "*x"-style macro names. A word of caution,
however: On some machines, such as mine running HP-UX 7.05,
multi-character macros can not be called from other macros. So e.g.
for a "ring" of macros to toggle between ":set wm=0" and ":set wm=8", I
have to use a one-character name. Check it out on your machine, you may
be luckier than I am.
Guenter Steinbach steinbac@hpl-opus.hpl.hp.com
From roger@quantime.co.uk (Roger Phillips)
Subject: Re: Good names for vi macros
Date: 9 Feb 92 13:25:45 GMT
Status: O
In article <1992Feb4.121606.19333@news.cs.indiana.edu>,
vdbuss@bigeye.cs.indiana.edu (Jan Van den Bussche) writes:
> My question is: does anyone has suggestions concerning which names to choose
> for naming macros?
If you're using a vi which only allows single-character macro names,
then you need to memorise which characters are available.
E.g. I use v, then q for short-term macros.
Some control-chars such as ^E, ^K may be ok,
depending on your terminal, I guess.
Fortunately, I always use vi's which allow 2-char names.
The commands [[ and ]] (back/forward to next section/function),
mean that the keys [ and ] have to be unbound on their own,
so I can use [a [b ... [z and ]a ]b ... ]z for 52 different macros,
even getting some sort of mnemonic naming sometimes :-)
Anyone got any more ideas?
--
Roger Phillips roger@quantime.co.uk
From mschee@bcarh600.bnr.ca (Michael SamChee)
Subject: How do I ignorecase when using a TAGs file?
Keywords: tags, ignorcase
Date: 10 Feb 92 01:32:23 GMT
Status: O
I'm using a tags file in vi and would like it to ignore
the case of the identifiers being searched for:
e.g.,
doing a on the identifiers TEMP, Temp, or temp should
be recognized as the same identifier.
Does anybody know how to overcome this problem?
Michael.
From vss@bigair.wpd.sgi.com (V.S.Senthil Kumar)
Subject: Tabs and Blanks
Date: 7 Feb 92 01:49:25 GMT
Status: O
what is the easy way to covert the tabs to appropriate number of blanks.
personally, i fell sick of this tabs. (who cares about the file size?)
[I use a tab stop of 4. but vi default is 8. so when ever some body brings
my source file in the editor, it looks awful.]
Does any body have a vi macro so that whenever i press
tabs appropriate number of blanks are used.
thanks,
vs senthilkumar
From peter@ferranti.com (peter da silva)
Subject: Re: Tabs and Blanks
Date: 9 Feb 92 19:46:28 GMT
Status: O
In article <golgj5k@dragon.wpd.sgi.com> vss@bigair.wpd.sgi.com (V.S.Senthil Kumar) writes:
> what is the easy way to covert the tabs to appropriate number of blanks.
Use an external program.
> personally, i fell sick of this tabs. (who cares about the file size?)
Personally, I like tabs (and not for file size).
> [I use a tab stop of 4. but vi default is 8. so when ever some body brings
> my source file in the editor, it looks awful.]
That's why I like tabs. I use a tab stop of 2, 4, 6, or 8... switching on the
fly as I edit my program.
> Does any body have a vi macro so that whenever i press
> tabs appropriate number of blanks are used.
No, that's the hard way.
--
-- Peter da Silva, Ferranti International Controls Corporation
-- Sugar Land, TX 77487-5012; +1 713 274 5180
-- "Have you hugged your wolf today?"
From weisen@daedalus.dcrt.nih.gov (Neil Weisenfeld)
Subject: Re: Tabs and Blanks
Date: 10 Feb 92 16:55:01 GMT
Status: O
In article <golgj5k@dragon.wpd.sgi.com> vss@bigair.wpd.sgi.com (V.S.Senthil Kumar) writes:
what is the easy way to covert the tabs to appropriate number of blanks.
personally, i fell sick of this tabs. (who cares about the file size?)
[I use a tab stop of 4. but vi default is 8. so when ever some body brings
my source file in the editor, it looks awful.]
[stuff removed]
What I do is this: set tabs to 8 and shift-width (sw) to the indent
that I want to use (e.g. 4). To indent a level, type ctrl-t. To
unindent a level, type ctrl-d.
This will add the proper number of *tabs and spaces* to get you to
where you want to go. It uses tabs for spacing out whatever the
tabstop is set to, and uses spaces for fractions of a tabstop. You
can also use the shift operators to unindent and indent regions.
If you need to remove the tabs from a file, you can do this:
:%!expand
if your system has the expand command.
--Neil
--
Neil I. Weisenfeld phone: (301) 402-2788
Building 12A, Room 2046 uucp: uunet!nih-csl!weisen
National Institutes of Health Internet: weisen@alw.nih.gov
Bethesda, MD 20892
From smarc@mas.UUCP (Marc Siegel)
Subject: Re: Tabs and Blanks
Date: 10 Feb 92 17:06:07 GMT
Status: O
vss@bigair.wpd.sgi.com (V.S.Senthil Kumar) writes:
>
>
> what is the easy way to covert the tabs to appropriate number of blanks.
>
> personally, i fell sick of this tabs. (who cares about the file size?)
> [I use a tab stop of 4. but vi default is 8. so when ever some body brings
> my source file in the editor, it looks awful.]
>
> Does any body have a vi macro so that whenever i press
> tabs appropriate number of blanks are used.
>
> thanks,
> vs senthilkumar
This is a simple problem.
set the environment variable EXINIT as follows:
EXINIT="map ^T :1,$ s;tab; ;g|se tabstop=4 "
Replace the ^T with an actual control-T or whatever you want the
sequence to be. Replace the word tab with an actual tab.
You can put the appropriate number of spaces in the field following the
tab.
Marc Siegel (smarc@mas.UUCP)
Emtronix Data Services Inc. (410) 486-2940
Baltimore, Maryland
smarc@mas.wb3ffv.AMPR.ORG <<New, Improved .sig Lite>>
From jpr@jpradley.jpr.com (Jean-Pierre Radley)
Subject: Re: Good names for vi macros
Status: O
In article <1992Feb9.132545.19653@quantime.co.uk> roger@quantime.co.uk (Roger Phillips) writes:
>In article <1992Feb4.121606.19333@news.cs.indiana.edu>,
>vdbuss@bigeye.cs.indiana.edu (Jan Van den Bussche) writes:
>If you're using a vi which only allows single-character macro names,
>then you need to memorise which characters are available.
>E.g. I use v, then q for short-term macros.
>Some control-chars such as ^E, ^K may be ok,
>depending on your terminal, I guess.
>
>Fortunately, I always use vi's which allow 2-char names.
>The commands [[ and ]] (back/forward to next section/function),
>mean that the keys [ and ] have to be unbound on their own,
>so I can use [a [b ... [z and ]a ]b ... ]z for 52 different macros,
>even getting some sort of mnemonic naming sometimes :-)
>
>Anyone got any more ideas?
Yeah. Use a vi which allows three-character names. The function keys on my
ansi terminal emit three characters, and I map any of F1 through F12, and PgUp
and PgDn too.
--
Jean-Pierre Radley Unix in NYC jpr@jpr.com jpradley!jpr CIS: 72160,1341
From casterln@are.Berkeley.EDU (Gary Casterline)
Subject: easy vi question: how to 'grep -v /r.e/'
Date: 11 Feb 92 20:50:10 GMT
Status: O
This must me so obvious that I can't see it.
Would some kind soul please show me how to
do a negative search -- like 'grep -v string'.
Go to the next line that does not have a specified
regular expression.
Thanks in advance.
--
Gary Casterline Agricultural & Resource Economics
casterln@are.berkeley.edu 207 Giannini Hall
(510) 642-5583 UC Berkeley, CA 94720
From heroux@cemmva.cem.msu.edu (Brett J. Heroux)
Subject: Re: easy vi question: how to 'grep -v /r.e/'
Date: 12 Feb 92 01:40:19 GMT
Status: O
In article <kpgdo2INNkit@agate.berkeley.edu>, casterln@are.Berkeley.EDU (Gary Casterline) writes:
>This must me so obvious that I can't see it.
>Would some kind soul please show me how to
>do a negative search -- like 'grep -v string'.
>Go to the next line that does not have a specified
>regular expression.
>From within 'ex' try (the : is supplied)
:g!/re/vi (or :v/re/vi and :v/re/vi. will put
that line in the middle of the screen)
-from vi I'm stuck...
Brett Heroux heroux@titan.cem.msu.edu
From baillod@dip.eecs.umich.edu (Brad Baillod)
Subject: vi question
Date: 12 Feb 92 06:50:28 GMT
Status: O
I just have one small question about vi that my man command
can't seem to answer. Please don't respond to this if you
read it after Wednesday, February 12.
I've used "vi bai*" and such to edit multiple files from
the command line, and vi seems to read multiple files into
its buffers, but I'll be damned if I can figure out a way
to switch between buffers!
It seems like I've tried every letter and control-letter
sequence in both edit mode and command mode. I can type
:q or ZZ to quit, or save and exit, etc. but it just keeps
the same file on the screen and tells me I have "one more
file to edit." My problem is switching to that file.
Thanks for any help you can give me.
Brad
--
Brad Baillod baillod@eecs.umich.edu
From tchrist@convex.COM (Tom Christiansen)
Subject: Re: vi question
Date: 12 Feb 92 07:14:46 GMT
>From the keyboard of baillod@dip.eecs.umich.edu (Brad Baillod):
Status: O
>I've used "vi bai*" and such to edit multiple files from
>the command line, and vi seems to read multiple files into
>its buffers, but I'll be damned if I can figure out a way
>to switch between buffers!
What you want is
:n
I happen have ^N mapped to ":n +/^M" becuase that way I can say (tcsh alias)
alias vall 'vi +/!:1 `grep -l !:1 *.[^oa]`'
and use ^N to get me through all the files at the right position.
--tom
From haegele@ibhinfo.hemminger-gdv.de (Frank Haegele)
Subject: vi - redefine <TAB>-key with <BLANK><BLANK>
Date: 11 Feb 92 18:17:02 GMT
Status: O
I'm using a VT420 terminal an I want to redefine the <TAB>-Key during
an vi-session with two blanks.
TERM=vt100
I tried:
:set list<RETURN>
:map! ^I <RETURN>
^^^- three blanks
but it dosen't work.
MfG Frank Haegele ( Hemminger GmbH )
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E-Mail: haegele@ibhinfo.Hemminger-GDV.DE haegele@delos.stgt.sub.org
-------------------------------------------------------------------------------
From ndh@bnr.co.uk (Neale D Hind)
Subject: Re: vi question
Date: 12 Feb 92 13:41:12 GMT
Status: O
In the referenced article baillod@dip.eecs.umich.edu (Brad Baillod) writes:
>I just have one small question about vi that my man command
>can't seem to answer. Please don't respond to this if you
>read it after Wednesday, February 12.
>
>:q or ZZ to quit, or save and exit, etc. but it just keeps
>the same file on the screen and tells me I have "one more
>file to edit." My problem is switching to that file.
>
Use :n to move to the next file and :rewind to go back to the first file
in the list.
+----------------------------------------------------------------+
| Neale D. Hind | Email: ndh@bnr.co.uk |
| Manager, Business Systems | Phone: +44 279 429531 x3613 |
| BNR Europe Limited | Fax : +44 279 441551 |
| London Road, HARLOW | ESN : 6-742-3613 |
| Essex CM17 9NA, United Kingdom | Telex: 81151 STL HW G |
+----------------------------------------------------------------+
From weisen@daedalus.dcrt.nih.gov (Neil Weisenfeld)
Subject: Re: vi question
Date: 12 Feb 92 17:31:34 GMT
Status: O
In article <1992Feb12.065028.4746@zip.eecs.umich.edu> baillod@dip.eecs.umich.edu (Brad Baillod) writes:
>I just have one small question about vi that my man command
>can't seem to answer. Please don't respond to this if you
>read it after Wednesday, February 12.
>
>I've used "vi bai*" and such to edit multiple files from
>the command line, and vi seems to read multiple files into
>its buffers, but I'll be damned if I can figure out a way
>to switch between buffers!
>
Brad,
The :n and :rew answers that you got are correct, but I just wanted to make
sure that you realized something. There is only *one* buffer in vi and you
must save your changes to disk before switching between files. This is
contrary to how multiple buffer editors like emacs work. You can't
experiment as safely. I'm a die-hard vi fan, but sometimes find that using
the VI emulation in emacs is handy. I always wind up coming back to the
original, though.
Also, if you get sick of the messages telling you that you need to write
out the file before switching, set autowrite (aw). This will cause the
buffers to be written to disk automatically when you switch from one file
to another. You need to be more careful here, though. One last thing:
CTRl-^ lets you switch to the ``previous file'' if there was one. This is
a handy way to toggle between two files.
Regards and happy editing,
Neil
--
Neil I. Weisenfeld phone: (301) 402-2788
Building 12A, Room 2046 uucp: uunet!nih-csl!weisen
National Institutes of Health Internet: weisen@alw.nih.gov
Bethesda, MD 20892
From hm@fwi.uva.nl (Hans Mulder)
Subject: Re: easy vi question: how to 'grep -v /r.e/'
Date: 12 Feb 92 20:12:09 GMT
Status: O
In <0095603A.918A0900@cemmva.cem.msu.edu> heroux@cemmva.cem.msu.edu (Brett J. Heroux) writes:
>In article <kpgdo2INNkit@agate.berkeley.edu>, casterln@are.Berkeley.EDU (Gary Casterline) writes:
>>This must me so obvious that I can't see it.
>>Would some kind soul please show me how to
>>do a negative search -- like 'grep -v string'.
>>Go to the next line that does not have a specified
>>regular expression.
>From within 'ex' try (the : is supplied)
>:g!/re/vi (or :v/re/vi and :v/re/vi. will put
> that line in the middle of the screen)
But next time you try to switch to ex mode, you get thrown back into
vi mode at the next line not matching /re/......
>-from vi I'm stuck...
Try
:.,$v/re/a
This jumps to the next line not matching /re/ and then complains that
a: No such command from open/visual
--
Hans Mulder hansm@cs.kun.nl
hm@fwi.uva.nl
From evh@genie.slhs.udel.edu (Troy Saville)
Newsgroups: comp.binaries.ibm.pc.wanted
Subject: Re: wanted: ms-dos vi
Date: 13 Feb 92 05:16:41 GMT
Status: O
In article <1992Feb12.143027.1@sysjj.mdcbbs.com> lembark@sysjj.mdcbbs.com writes:
>does anyone know of a vi for ms-dos (source/share/binary)? even a more-or-less
>portable K&R source from UNIX! ANYTHING!
>thanx
I went through this a couple of months ago.
Your best bet is to get ahold of the binaries or source code for
a vi-clone called 'stevie'. I got it from an archive site.
I managed to get it to compile under turbo C(++) and work.
Its not a perfect 'vi'(as compared to a UNIX version), but i have found it
to be good enough. It doesn't handle certain commands the same way
as you would expect. Especially 'change' command.
EX: 'cw'
instead of placing a dollar sign at the end of the word it delete the word
and puts you into insert mode.
Oh yeah, its ram based so you can't edit really big files.
If i get the chance i plan to make it handle 'cw' etc correctly,
use memory above 1MB(extended, expanded whatever) and some other crap
(maybe a keystoke files to recover changes, i don't know......)).
I believe a commercial version is available from Mortice Kern Systems
called MKS VI. Last time i checked, price was around 100$ at programmers
paradise(or was it programmers connection), however, i got ahold of
'stevie' and didn't order MKS vi.
There is also an old version by custom system software(or something like that),
but i beleive that they are no longer in business.
I used this version and it was very good. as good as UNIX vi as far as
i could tell. however, i bought a better graphics card and it wouldn't
work so i'm using 'stevie' now.
evh@genie.slhs.udel.edu
PS: I don't have the stevie source or binaries on the machine that my acct
is on so don't send requests for it. I don't expect to do any thing
with the stevie source code for months.
--
- Golf Discs and "MINI'S" bought and traded, DISC GOLF INFO ? - SEND EMAIL
evh@genie.slhs.udel.edu - T Saville - MENS OPEN PRO - PDGA #5399
From tom@vpnet.chi.il.us (Tom Hansen)
Subject: Re: vi question
Date: 12 Feb 92 19:03:13 GMT
Status: O
In article <1992Feb12.065028.4746@zip.eecs.umich.edu> baillod@dip.eecs.umich.edu (Brad Baillod) writes:
>I just have one small question about vi that my man command
>can't seem to answer. Please don't respond to this if you
>read it after Wednesday, February 12.
>
>I've used "vi bai*" and such to edit multiple files from
>the command line, and vi seems to read multiple files into
>its buffers, but I'll be damned if I can figure out a way
>to switch between buffers!
I use ':e filename' to get the next file to edit, rather than the way
you seem to be doing it.
Once you have two files in the buffer the command ':e #'
will switch back and forth between the two. If you have more than
two then ':n' will get the next in sucession.
--
| Tom Hansen || "My beard grows to my toes. I never wears no |
| tom@vpnet.chi.il.us || clothes. I wraps my hair around my bare, and |
| "I yam what I yam" || down the road I goes." - Shel Silverstein |
|______________________||___________________________________________________|
Newsgroups: comp.unix.questions
From buboo@alf.uib.no (Ove Ruben R Olsen)
Subject: Re: vi - redefine <TAB>-key with <BLANK><BLANK>
Date: Fri, 14 Feb 92 07:41:40 GMT
Frank Haegele (haegele@ibhinfo.hemminger-gdv.de) writes:
>I'm using a VT420 terminal an I want to redefine the <TAB>-Key during
>an vi-session with two blanks.
>TERM=vt100
>
>I tried:
>
> :set list<RETURN>
> :map! ^I <RETURN>
> ^^^- three blanks
>
>but it dosen't work.
This solution works on version SVR3.1 of VI.
First of all you need to escape the TAB key. Then you need to escape the
SPACEs.
:map! ^V^I ^V <RETURN>
^^^- three blanks
To get the CTRL's right:
:map! <CTRL-V><CTRL-V><CTRL-V><CTRL-I> <CTRL-V><CTRL-V><SPC><SPC><SPC><CR>
\Ruben.
--
Ove Ruben R Olsen, Proffessional VI user. EMAIL: rubenro@viggo.blh.no
Also known as "The Gnarfer from Hell". (Registered character of ORRO.)
Maintaining the Largest VI/EX-STUFF Archive in the WORLD (alf.uib.no)
:wq!
From scott@odin.unomaha.edu (Scott Ames)
Subject: macro record and playback in vi?
Keywords: vi macro
Date: 15 Feb 92 13:51:48 GMT
Status: O
Is there a way to record macros and play them back in vi?
I know about being able to execute commands that are in a named text
buffer by doing @buffer_name, but it is a pain to get the commands in
the buffer.
Thanks,
Scott Ames
scott@odin.unomaha.edu
From clewis@ferret.ocunix.on.ca (Chris Lewis)
Subject: Re: Tabs and Blanks
Date: 17 Feb 92 08:39:58 GMT
Status: O
In article <1992Feb17.061334.9585@robohack.UUCP> woods@robohack.UUCP (Greg A. Woods) writes:
>In article <WEISEN.92Feb10115501@daedalus.dcrt.nih.gov> weisen@daedalus.dcrt.nih.gov (Neil Weisenfeld) writes:
>> What I do is this: set tabs to 8 and shift-width (sw) to the indent
>> that I want to use (e.g. 4). To indent a level, type ctrl-t. To
>> unindent a level, type ctrl-d.
This, incidentally, is exactly what I do.
>EEEK! Wrong! :-)
What's wrong with it Greg? You certainly see a lot of my code! ;-)
We had a short chat about this earlier, in which you admitted ignorance
of this technique - did you do any exploration beyond that conversation?
>This makes the file very painful to edit/print/display on anything
>with a tab-size of other than 8 characters, and difficult to edit with
>any edit that properly deals with tabs characters in a normal fashion.
Almost all hardware devices have 8 character tab widths, and relatively
few hardware devices have settable tab stops. UNIX has no provision
for setting tab width in serial drivers, or generically in hardware
devices (other than settabs which few hardware devices support) and vi
can only change tab width by doing the expansion itself.
Having tab space as anything other than 8 is stupid, because *ONLY*
vi can handle it. Your printer probably can't. Nor will your serial
devices (and hence pg/more will be screwed) etc. And everyone else
on earth will hate you. I certainly will.
>Please set your shift-width and tabs to the same size! Then when you
>want to squish everything down to fit on the screen/paper, you only
>need to change the tab size, and when the indentation is important to
>see, the tab size can be set up to a decent value (like 8 :-), and all
>looks great!
On the contrary, set tabs to 8. And set shift-width to what you
want for code indentation. Then your code will look as you intended
no matter what they display it on.
Futzing around with non-8 tab widths is a fools game. It can
turn mild-mannered system integrators into screaming maniacs.
(Speaking as one who has screamed more than once ;-)
>Yes, this makes tabs other than at the beginning of the code difficult
>to line up, but they are no matter what you do.
It's more than that. Screwing around with tab width screws up indentation
even at the beginning of lines. And it can screw up any non-beginning
formatting that doesn't have tabs just as easily.
Ie: you have an if statement with multiple logical segments. It's
nice to line things up, ala:
if (A ||
(B && D...........
E) ||
F
or
fprintf(stderr, "%s %s %d..."
arg1,
arg2
Or, what will happen with this, even with tabs only at the beginning
of lines?
if (something) { /* here we .... */
foo /* and do some more */
etc. Screwing around with tab widths just destroys any attempts to
make this sort of thing readable.
(Greg has been known to concatenate nice&neat multiple line statements
written by others into something that wraps several times. Just because
he's on something that can display 100 columns. At the time.)
[If you want to reply to this, please send mail. This machine doesn't
get comp.editors - I got the original just because eci386 L1's me)
--
Chris Lewis; clewis@ferret.ocunix.on.ca; Phone: Canada 613 832-0541
Psroff 3.0 info: psroff-request@ferret.ocunix.on.ca
Ferret list: ferret-request@ferret.ocunix.on.ca
From woods@robohack.UUCP (Greg A. Woods)
Subject: Re: Tabs and Blanks
Date: 17 Feb 92 06:13:34 GMT
Status: O
In article <WEISEN.92Feb10115501@daedalus.dcrt.nih.gov> weisen@daedalus.dcrt.nih.gov (Neil Weisenfeld) writes:
>
> What I do is this: set tabs to 8 and shift-width (sw) to the indent
> that I want to use (e.g. 4). To indent a level, type ctrl-t. To
> unindent a level, type ctrl-d.
EEEK! Wrong! :-)
This makes the file very painful to edit/print/display on anything
with a tab-size of other than 8 characters, and difficult to edit with
any edit that properly deals with tabs characters in a normal fashion.
Please set your shift-width and tabs to the same size! Then when you
want to squish everything down to fit on the screen/paper, you only
need to change the tab size, and when the indentation is important to
see, the tab size can be set up to a decent value (like 8 :-), and all
looks great!
Yes, this makes tabs other than at the beginning of the code difficult
to line up, but they are no matter what you do.
--
Greg A. Woods
woods@{robohack,gate,eci386}.UUCP VE3-TCP UniForum Canada & Elegant Comm.
(416) 443-1734 [home] (416) 595-5425 [work] Toronto, Ontario; CANADA
From peter@ferranti.com (peter da silva)
Subject: Re: Tabs and Blanks
Date: 17 Feb 92 17:05:11 GMT
Status: O
In article <3157@ecicrl.ocunix.on.ca> clewis@ferret.ocunix.on.ca (Chris Lewis) writes:
> Having tab space as anything other than 8 is stupid, because *ONLY*
> vi can handle it.
Having indent space as anything other than one tabstop is IMHO just as
stupid, because you can't easily adjust the indenting of your code as you
like it (say, using pr, or vi, or psroff|ghostscript, or whatever).
I set tabstops to whatever is convenient for editing the code at hand,
and leave them at 8 characters for prettifying the code so it looks nice
on character-cell printers.
> And everyone else on earth will hate you. I certainly will.
You've seen my code. (now where have I heard that before?)
> On the contrary, set tabs to 8. And set shift-width to what you
> want for code indentation. Then your code will look as you intended
> no matter what they display it on.
Set tabs and shiftwidth to 8 for normal editing, and change them both
together if you need more room. That way your code will look open and
readable on hardcopy, but you can still edit it conveniently on narrow
devices.
> Futzing around with non-8 tab widths is a fools game. It can
> turn mild-mannered system integrators into screaming maniacs.
Futzing around with non-tabwidth indents is a fools game. It can
turn mild mannered system integrators into screaming maniacs.
> (Speaking as one who has screamed more than once ;-)
(Speaking as one who has screamed more than once :-> )
--
-- Peter da Silva, Ferranti International Controls Corporation
-- Sugar Land, TX 77487-5012; +1 713 274 5180
-- "Have you hugged your wolf today?"
From tchrist@convex.COM (Tom Christiansen)
Subject: Re: Tabs and Blanks
Date: 17 Feb 92 18:52:04 GMT
Status: O
>From the keyboard of peter@ferranti.com (peter da silva):
:> On the contrary, set tabs to 8. And set shift-width to what you
:> want for code indentation. Then your code will look as you intended
:> no matter what they display it on.
:
:Set tabs and shiftwidth to 8 for normal editing, and change them both
:together if you need more room. That way your code will look open and
:readable on hardcopy, but you can still edit it conveniently on narrow
:devices.
:
:> Futzing around with non-8 tab widths is a fools game. It can
:> turn mild-mannered system integrators into screaming maniacs.
:
:Futzing around with non-tabwidth indents is a fools game. It can
:turn mild mannered system integrators into screaming maniacs.
I really don't see anything wrong with having shiftwidth be 4 and
tabstop be 8. I don't like tabstop not to be 8 for printing purposes,
and by having sw=4 makes code fit better, and it only takes two to
make a tab. Some folks set sw=3, but then you can't >> and hit a real
tab. Maybe that doens't matter.
--tom
From matthew@garfield.cs.mun.ca (Matthew J. Newhook)
Subject: Re: Tabs and Blanks
Date: 17 Feb 92 20:05:41 GMT
Status: O
tchrist@convex.COM (Tom Christiansen) writes:
>From the keyboard of peter@ferranti.com (peter da silva):
[snip]
>I really don't see anything wrong with having shiftwidth be 4 and
>tabstop be 8. I don't like tabstop not to be 8 for printing purposes,
Assuming tabstop=4 what's wrong with expand -4 code.c | lpr ?
Not that I ever print my code anymore anyway... I personally feel that
it's never worth printing code. Isn't there some sort of heuristic
that states the productivity of a programmer is inversely proportional to
the number of times that the programmer prints the code?
Of course, for students I guess this is a necessity.
The only problem that I see in not having my tabstops set to 8 is that
when I page my file (less, more, etc) it doesn't look right :(. However,
I personally don't find this to be much of a problem.
>and by having sw=4 makes code fit better, and it only takes two to
>make a tab. Some folks set sw=3, but then you can't >> and hit a real
>tab. Maybe that doens't matter.
>--tom
Matthew Newhook
--
----------------matthew@cs.mun.ca
"Living in the limelight; the universal dream for those who wish to
seem. Those who wish to be must put aside the alienation, get on with
the fascination, the real relation, the underlying theme" - Rush
From norrish@rata.vuw.ac.nz (Michael Norrish)
Subject: vi ! command in non-interactive envt.
Date: 18 Feb 92 06:34:01 GMT
Status: O
I have recently come to appreciate the wonders that can be performed
with vi's rather elegant ! command. (For those reading who don't know,
this takes a region of your buffer and feeds that to a specified shell
command, with the output from that command replacing what was in the
region).
I am now curious about how this same task might be accomplished
"non-interactively", (i.e. using sed or awk or something similar).
Assume I want to run awk script silly.awk on lines 100-120 of my file.
This would be my best stab at a solution, and I realise now that it's
pretty ghastly:
sed -n '100,120p' < myfile | awk -f silly.awk > /tmp/stage1.$$
# now I have a file of the changed region. Now I have to sort of patch
# this back into the original
sed -n '1,99p' < myfile > /tmp/first_half.$$
sed -n '121,$p' < myfile > /tmp/second_half.$$
cat /tmp/first_half.$$ /tmp/stage1.$$ /tmp/second_half.$$ > myfile
Voila! All done, but so kludgey. If anyone has any better ideas on how
to accomplish this, I would be keen to see them, either here, or by
mail.
Thank you,
Michael.
--
Michael Norrish. norrish@rata.vuw.ac.nz
----------------Victoria University of Wellington---------------------
"I can't believe *that*!" said Alice.
"Can't you?" the Queen said in a pitying tone. "Try again: draw a long
breath, and shut your eyes."
From tchrist@convex.COM (Tom Christiansen)
Subject: Re: vi ! command in non-interactive envt.
Date: 18 Feb 92 06:13:37 GMT
Status: O
>From the keyboard of norrish@rata.vuw.ac.nz (Michael Norrish):
:I have recently come to appreciate the wonders that can be performed
:with vi's rather elegant ! command. (For those reading who don't know,
:this takes a region of your buffer and feeds that to a specified shell
:command, with the output from that command replacing what was in the
:region).
:
:I am now curious about how this same task might be accomplished
:"non-interactively", (i.e. using sed or awk or something similar).
:Assume I want to run awk script silly.awk on lines 100-120 of my file.
#!/bin/awk -f
{
if (NR >= 100 && NR <= 120) {
# do the awk stuff
} else {
print
}
}
or
#!/usr/bin/perl -p
if (100 .. 120) {
# do the awk stuff
}
If what you want to do betwen lines 100 and 120 isn't an awk thing,
you can open a pipe to another process. Make sure to close it when
you're done so your output is in the right order. Your awk doesn't
support close()? Get gawk. However, if you want to flush your pipe
partway through, you're out of luck. Get the awk-to-perl translator. :-)
--tom
From tcm@tcm.austin.ibm.com (Tom McDonald)
Subject: VI - Number of Lines
Date: 14 Feb 92 16:11:19 GMT
Status: O
I've been trying to use vi in a 132x50 window. 132 columns works fine, but
I can't get vi to use more than 24 lines.
I've tried using 'vi -w50', ':set window=50', ':set scroll=50', to no avail.
I'm using an xterm window on an RS/6000. Any ideas on what's causing the
problem? Emailed answers preferred.
Tom McDonald
tcm@netmail.austin.ibm.com
----------------------------------------------------------------------------
My opinions are unrelated to IBM's
From peter@ferranti.com (peter da silva)
Subject: Re: Tabs and Blanks
Date: 18 Feb 92 15:10:32 GMT
Status: O
In article <1992Feb17.185204.22850@news.eng.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
> [...] and by having sw=4 makes code fit better [...]
I'd rather have the code open and readable, thanks. I was just working on
some code that was not only sw=4, but looked like this:
if(...)
{ int foo = bar;
...
return spooge; }
If I'm working on code and sw=8 makes it wrap I take it as a hint that I
should consider refactoring it into smaller routines. If that doesn't look
easy, I change ts and sw together while I'm working on it and use a wider
printer.
> make a tab. Some folks set sw=3, but then you can't >> and hit a real
> tab. Maybe that doens't matter.
>
> --tom
--
-- Peter da Silva, Ferranti International Controls Corporation
-- Sugar Land, TX 77487-5012; +1 713 274 5180
-- "Have you hugged your wolf today?"
From peter@ferranti.com (peter da silva)
Subject: Re: Tabs and Blanks
Date: 18 Feb 92 15:12:54 GMT
Status: O
In article <1992Feb17.200541.8661@garfield.cs.mun.ca> matthew@garfield.cs.mun.ca (Matthew J. Newhook) writes:
> Not that I ever print my code anymore anyway... I personally feel that
> it's never worth printing code. Isn't there some sort of heuristic
> that states the productivity of a programmer is inversely proportional to
> the number of times that the programmer prints the code?
I guess that depends on whether you've got a laptop that's legible when
you're desk-checking your code out by the pool. Sometimes one gets tired
of cubing.
--
-- Peter da Silva, Ferranti International Controls Corporation
-- Sugar Land, TX 77487-5012; +1 713 274 5180
-- "Have you hugged your wolf today?"
From hugh@BRL.MIL ( Hugh Dempsey)
Newsgroups: comp.unix.questions
Subject: Re: vi - redefine <TAB>-key with <BLANK><BLANK>
Date: 18 Feb 92 13:18:07 GMT
Status: O
Hi,
An easier solution is to either set shiftwidth or tabstop to 3.
:set sw=3
:set ts=3
Best,
Hugh
hugh@brl.army.mil
From anibal@wiley.EE.McGill.CA (JODORCOVSKY/ANIBAL GASTON/MR)
Newsgroups: comp.unix.questions
Subject: vi and terminal emulation vt102 ???
Date: 18 Feb 92 18:51:11 GMT
Status: O
Hi!!
I am having a little problem when using VT102 emulation terminal.
I am connecting with a modem (Supramodem 2400) to a Unix system, the
comm software that I am using (Telix) supports VT102 emulation and
I am using that one, having in my .login a set term=vt102.
The problem is that when editing with vi, if I want to delete the
last character of a line I sit on it and press x, but what happens is
that 2 characters are deleted from the screen. I refresh the screen
and the character that was before the last one reappears.
A weird thing is that when I move the cursor to the left, the
characters are erased from the screen but as soon as I refresh the
screen they are there again.
Has anyone know what is going on?
Thanks a lot!
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
= Anibal / anibal@honi.ee.mcgill.ca =
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
From chris@visionware.co.uk (Chris Davies)
Newsgroups: comp.unix.questions
Subject: Re: vi - redefine <TAB>-key with <BLANK><BLANK>
Date: 18 Feb 92 16:23:12 GMT
Status: O
Frank Haegele (haegele@ibhinfo.hemminger-gdv.de) writes:
>I'm using a VT420 terminal an I want to redefine the <TAB>-Key during
>an vi-session with two blanks.
In article <1992Feb14.074140.3454@alf.uib.no> buboo@alf.uib.no (Ove Ruben R Olsen) writes:
>To get the CTRL's right:
>:map! <CTRL-V><CTRL-V><CTRL-V><CTRL-I> <CTRL-V><CTRL-V><SPC><SPC><SPC><CR>
Ah! So that's how you do it.
I've now got this set so that my TAB key becomes ^T (soft-indent), and
I've set the shiftwidth (sw) to 4. This means I get 4-character
indents which become tabs as and when possible...
Thanks,
Chris
--
VISIONWARE LTD, 57 Cardigan Lane, LEEDS LS4 2LE, England
Tel +44 532 788858 x238. Fax +44 532 304676. Email chris@visionware.co.uk
------------ "VisionWare: The home of DOS/SQL/UNIX/X integration" -----------
From pct@LEO.Stanford.EDU (Peter C. Tam)
Newsgroups: comp.unix.admin,comp.protocols.tcp-ip.ibmpc
Subject: VI terminal type
Date: 20 Feb 92 04:48:22 GMT
Status: O
Hi,
I try to install nansi termcap entry by:
. Entering nansi termcap entry into /etc/termcap w content roughly:
PC|nansi|IBM PC NANSI SYS :\
:al-\EE.......
...
... etc
. setenv TERM nansi
. tset
. vi filename
& vi complains it does not know terminal type "nansi". When I search
the /etc/termcap, it is there.
What is missing in the sequence?
From woods@robohack.UUCP (Greg A. Woods)
Subject: Re: Tabs and Blanks
Summary: Trying not to scream, tear my hair out, and flame too much
Date: Tue, 25 Feb 92 03:42:57 GMT
Status: O
In article <3157@ecicrl.ocunix.on.ca> clewis@ferret.ocunix.on.ca (Chris Lewis) writes:
> What's wrong with it Greg? You certainly see a lot of my code! ;-)
> We had a short chat about this earlier, in which you admitted ignorance
> of this technique - did you do any exploration beyond that conversation?
What's wrong with it is it makes any other indentation options
*impossible* under software control without *changing* the file.
> Having tab space as anything other than 8 is stupid, because *ONLY*
> vi can handle it. Your printer probably can't. Nor will your serial
> devices (and hence pg/more will be screwed) etc. And everyone else
> on earth will hate you. I certainly will.
Having tab size set to something other than 8 lets you read wide-bodied
code on antique terminals without twisting your eyeballs trying to
follow the wrapping.
Then, when people with modern terminals, and/or wide-carriage (or
small font) printers, get a look at the code, it appears in a readable
form with nice deep and obvious indentation.
This has absolutely nothing to do with what hardware or drivers can
support what tab handling characteristics. Doing it right in the first
place makes the actual tab size of no concern.
> Futzing around with non-8 tab widths is a fools game. It can
> turn mild-mannered system integrators into screaming maniacs.
> (Speaking as one who has screamed more than once ;-)
Only if you have a layout style that'll turn some of us into screaming
maniacs when we merely look at it, let alone try to read it.
> etc. Screwing around with tab widths just destroys any attempts to
> make this sort of thing readable.
So, write it out "properly" so that anyone can read it regardless of
their tab size setting, or use one tab character per indent and assume
that the de-facto standard of 8-space tabs will keep your layout sane.
--
Greg A. Woods
woods@robohack.UUCP woods@Elegant.COM VE3-TCP UniForum Canada & Elegant Comm.
(416) 443-1734 [home] (416) 595-5425 [work] Toronto, Ontario; CANADA
From woods@robohack.UUCP (Greg A. Woods)
Subject: Re: Tabs and Blanks
Date: Tue, 25 Feb 92 03:53:26 GMT
Status: O
In article <1992Feb17.185204.22850@news.eng.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
> From the keyboard of peter@ferranti.com (peter da silva):
> :Futzing around with non-tabwidth indents is a fools game. It can
> :turn mild mannered system integrators into screaming maniacs.
>
> I really don't see anything wrong with having shiftwidth be 4 and
> tabstop be 8. I don't like tabstop not to be 8 for printing purposes,
> and by having sw=4 makes code fit better, and it only takes two to
> make a tab. Some folks set sw=3, but then you can't >> and hit a real
> tab. Maybe that doens't matter.
What's wrong with it (and any other un-equal setting of the so-called
shift-width and the tab size) is that you end up using both tabs and
spaces to represent indentation, and the "level" of indentation cannot
be determined by counting the number of indentation characters, nor
can the amount of indentation per level be changed without changing
the number of characters in the indentation, i.e. changing the file.
By using *only* the tab character (i.e. *the* indentation character),
the amount of indentation per level can be easily controlled by
changing the the amount to space displayed per indentation character.
No change to the file is necessary.
How much simpler can you get?
--
Greg A. Woods
woods@robohack.UUCP woods@Elegant.COM VE3-TCP UniForum Canada & Elegant Comm.
(416) 443-1734 [home] (416) 595-5425 [work] Toronto, Ontario; CANADA
From Tom Christiansen <tchrist@convex.COM>
Subject: Re: Tabs and Blanks
Date: Tue, 25 Feb 1992 16:11:44 GMT
Status: O
>From the keyboard of woods@robohack.UUCP (Greg A. Woods):
:In article <1992Feb17.185204.22850@news.eng.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
:> I really don't see anything wrong with having shiftwidth be 4 and
:> tabstop be 8.
:
:What's wrong with it (and any other un-equal setting of the so-called
:shift-width and the tab size) is that you end up using both tabs and
:spaces to represent indentation, and the "level" of indentation cannot
:be determined by counting the number of indentation characters, nor
:can the amount of indentation per level be changed without changing
:the number of characters in the indentation, i.e. changing the file.
Indentation is for humans to read. If computers wish to do so, they
are quite happy to convert the tabs to spaces before counting.
--tom
From mitchell@mdd.comm.mot.com (Bill Mitchell)
Subject: Re: Tabs and Blanks
Date: 25 Feb 92 19:14:29 GMT
Status: O
in comp.editors, tchrist@convex.COM (Tom Christiansen) said:
>From the keyboard of woods@robohack.UUCP (Greg A. Woods):
>:In article <1992Feb17.185204.22850@news.eng.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
>:> I really don't see anything wrong with having shiftwidth be 4 and
>:> tabstop be 8.
>:
>:What's wrong with it (and any other un-equal setting of the so-called
>:shift-width and the tab size) is that you end up using both tabs and
>:spaces to represent indentation, and the "level" of indentation cannot
>:be determined by counting the number of indentation characters, nor
>:can the amount of indentation per level be changed without changing
>:the number of characters in the indentation, i.e. changing the file.
>
>Indentation is for humans to read. If computers wish to do so, they
>are quite happy to convert the tabs to spaces before counting.
>
and this may be a problem if your code is ever going to be maintained by
some human who will use a different text editor than you use.
--
mitchell@mdd.comm.mot.com (Bill Mitchell)
From Tom Christiansen <tchrist@convex.COM>
Subject: Re: Tabs and Blanks
Date: Tue, 25 Feb 1992 19:58:55 GMT
Status: O
>From the keyboard of mitchell@mdd.comm.mot.com (Bill Mitchell):
:>Indentation is for humans to read. If computers wish to do so, they
:>are quite happy to convert the tabs to spaces before counting.
:
:and this may be a problem if your code is ever going to be maintained by
:some human who will use a different text editor than you use.
Which is one of the reasons I keep my physical tabs set at 8, although
shiftwidth and indentation level to 4. Any reasonable editor allows you
to define simple code-shifting commands to arbitrary widths. It's not my
fault if the person maintaining my code won't use a reasonable editor.
--tom
From buettneb@Informatik.TU-Muenchen.DE (Buettner)
Subject: Bug in elvis?
Date: Wed, 26 Feb 1992 07:45:09 GMT
Status: O
Hi folks,
Yesterday I managed to kill elvis with a legal command (I believe).
I wanted to replace <eol> from the current line to marker m with
a comma and a blank. Actually I wanted to convert a short vertical
list of items into a comma delimited list over two or three lines.
With the following ex command I managed to hang my machine.
:.,'ms/$/, /g
I had marked a position below the cursor with mm before.
Any ideas? Can anyone tell me what happens?
Greetings,
Bernhard Buettner
From xiaofei@acsu.buffalo.edu (XiaoFei Wang)
Subject: Re: Bug in elvis?
Date: 26 Feb 92 14:29:15 GMT
Status: O
/* From the keyboard of buettneb@Informatik.TU-Muenchen.DE (Buettner) */:
With the following ex command I managed to hang my machine.
[with elvis ]
:.,'ms/$/, /g
This happens to me when I use elvis on msdos. The `solution' I found is
to omit the `g' at the end, i.e. use
:.,'ms/$/, /
I do not know the address the author. Let us forward the problem to the
author. Despite a few bugs, elvis is just great and I would like to see
it to be perfect.
--
xiaofei@acsu.buffalo.edu | Subscribe Chinese Poem Exchange and Discussion List
mail LISTSERV@UBVM.BITNET with "SUB CHPOEM-L 1st LastName" in the MESSAGE BODY
InterNet Address: UBVM.CC.BUFFALO.EDU | Posting in UUENCODED GB and BIG5
From pgf@cayman.COM (Paul Fox)
Subject: Re: Bug in elvis?
Date: 26 Feb 92 17:46:29 GMT
Status: O
buettneb@Informatik.TU-Muenchen.DE (Buettner) writes:
: With the following ex command I managed to hang my machine.
:
: :.,'ms/$/, /g
:
: Any ideas? Can anyone tell me what happens?
how embarassing -- I smugly tried this with vile, thinking I'd fixed similar
behavior before. Same bug. :-) At least I'm in good company.
I suspect elvis is going infinite for the same reason vile does -- the /g
on the end tries to redo the substitute for all non-overlapping matches, and
the accounting of where we are and where we've matched gets a little fouled
up when dealing with zero-length matches.
paul fox, pgf@cayman.com
(vile 3.9 is available for *BETA* testing at ftp.cayman.com, in pub/vile)
--
paul fox, pgf@cayman.com, (617)494-1999
Cayman Systems, 26 Landsdowne St., Cambridge, MA 02139
From steve@monu6.cc.monash.edu.au (Steve Balogh (+61 3 565 4747))
Subject: Re: Tabs and Blanks
Date: 26 Feb 92 00:59:54 GMT
Status: O
In article <3157@ecicrl.ocunix.on.ca> clewis@ferret.ocunix.on.ca (Chris Lewis) writes:
> Futzing around with non-8 tab widths is a fools game. It can
> turn mild-mannered system integrators into screaming maniacs.
> (Speaking as one who has screamed more than once ;-)
The FIRST thing I do when I obtain some "new" source code is to replace all
tabs with spaces. I HATE TABS in source code. They seem to make editing and
reformating much harder than it needs to be.
Anyway it works for me. :)
Steve
----_--_-_-_--_-__-_------_-__---_-___-_----_-____-_-_--__-_--_--___-_-_-_--__-_
Steve Balogh VK3YMY (Maths G.14) | steve@monu6.cc.monash.edu.au
Monash University, Clayton Campus | 37 54'38.8"S 145 07'47.1"E ...ICBM
Wellington Road, Clayton. | +61 3 565 4747 Voice (Office)
Melbourne, AUSTRALIA. 3168 | +61 3 565 4746 Fax
From peter@ferranti.com (peter da silva)
Subject: Re: Tabs and Blanks
Date: Tue, 25 Feb 1992 23:24:20 GMT
Status: O
> :[...] and the "level" of indentation cannot
> :be determined by counting the number of indentation characters,
In article <1992Feb25.161144.26962@news.eng.convex.com> tchrist@convex.COM (Tom Christiansen) writes:
> Indentation is for humans to read. If computers wish to do so, they
> are quite happy to convert the tabs to spaces before counting.
Quite true. But what about the second point in the text you quoted? To
wit:
> :nor can the amount of indentation per level be changed without changing
> :the number of characters in the indentation, i.e. changing the file.
--
-- Peter da Silva, Ferranti International Controls Corporation
-- Sugar Land, TX 77487-5012; +1 713 274 5180
-- "Have you hugged your wolf today?"
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