joshi@motcid.UUCP (Abhay B. Joshi) (12/04/90)
I couldn't find a newsgroup for vi questions, hence this intrusion. I have a simple text-file containing the following text (3 lines): The goal: All I am trying to do is replace the 'the's by 'an's. That's all. I set up a .exrc in the current directory which looks like (2 lines): :g/the/ s//an/g Now I tried to do a 'vi text-file', I got a coredump! About 10 times. Then I deleted the .exrc file and put the command in EXINIT. I got a coredump again. (No coredump if neither .exrc nor EXINIT exists) I don't think it's a memory problem. I use a SUN 4.0.3 with sunview with lots of programs running at the same time. I tried the above in a no-other-program- running mode too. Any clues to the solution would be very welcome. Abhay
jeenglis@alcor.usc.edu (Joe English Muffin) (12/04/90)
joshi@motcid.UUCP (Abhay B. Joshi) writes: > >I set up a .exrc in the current directory which looks like (2 lines): > :g/the/ s//an/g > >Now I tried to do a 'vi text-file', I got a coredump! About 10 times. >Then I deleted the .exrc file and put the command in EXINIT. >I got a coredump again. (No coredump if neither .exrc nor EXINIT exists) Just a guess: I think that vi executes all the commands in .exrc BEFORE reading the file to be edited. (Try leaving blank lines in .exrc -- you'll get messages like "No lines in the buffer" even when you specify a filename on the command line.) I'm not sure what your actual application is, but you're better off mapping a macro to the substitute command. More weirdness I just discovered: if there are blank lines in .exrc, 'vi .exrc' hangs completely. This is under SunOS 4.1 on a Sun-3. --Joe English jeenglis@alcor.usc.edu
tchrist@convex.COM (Tom Christiansen) (12/04/90)
In article <5315@graphite20.UUCP> joshi@motcid.UUCP (Abhay B. Joshi) writes:
:I couldn't find a newsgroup for vi questions, hence this intrusion.
Well, there is comp.editors, but you didn't know that.
:I have a simple text-file containing the following text (3 lines):
:
: The goal:
: All I am trying to do is replace the 'the's by 'an's.
: That's all.
:
:I set up a .exrc in the current directory which looks like (2 lines):
: :g/the/ s//an/g
What a funny place to put that command. Plus you don't use colons
in your .exrc file.
:Now I tried to do a 'vi text-file', I got a coredump! About 10 times.
You know, one of the indications of insanity is doing the same
thing again and again and expecting different results. :-)
:Then I deleted the .exrc file and put the command in EXINIT.
:I got a coredump again. (No coredump if neither .exrc nor EXINIT exists)
:I don't think it's a memory problem. I use a SUN 4.0.3 with sunview with lots
:of programs running at the same time. I tried the above in a no-other-program-
:running mode too.
Um, that's kind of a peculiar way to do about it. How come
you're putting it in your .exrc? If this is something you want
to do automatically to a file, you could run sed or ex over it:
sed 's/the/an/g' < file1 > file2 && mv file2 file1
or else
ex - file <<EOEDIT
%s/the/an/g
x
EOEDIT
Of course, you probably really want \<the\> instead so "bathe"
doesn't become "baan". (That only works with ex though.)
Oh, and this should do the trick, too
perl -p -i -e 's/\bthe\b/an/g' file
The \b in perl is \< or \> in ex. If you'd like the old
file around as file.bak, then do this:
perl -p -i.bak -e 's/\bthe\b/an/g' file
If, however, this is something you are expecting to do
all the time when you're in the editor, you could make
a macro to do it for you. Put this in your .exrc, and
don't put any blank lines there.
map = :%s/\<the\>/an/g^M
Make your to put a real ^M in the file. Now you just
have to hit = to make the change.
--tom
--
Tom Christiansen tchrist@convex.com convex!tchrist
"With a kernel dive, all things are possible, but it sure makes it hard
to look at yourself in the mirror the next morning." -memju@mudos.ann-arbor.mi.us (Marc Unangst) (12/05/90)
joshi@motcid.UUCP (Abhay B. Joshi) writes: > I have a simple text-file containing the following text (3 lines): > > The goal: > All I am trying to do is replace the 'the's by 'an's. > That's all. Son, vi is the wrong tool for the job. ed file <<Frobozz 1,$g/the/s//an/g w q Frobozz or sed 's/the/an/g' file >file.new (You could use awk to do it, too, but awk is really the wrong tool for the job here. The nice thing about Unix is that it has so many different tools to choose from.) -- Marc Unangst | mju@mudos.ann-arbor.mi.us | "Bus error: passengers dumped" ...!umich!leebai!mudos!mju |
james@dlss2.UUCP (James Cummings) (12/06/90)
In article <q5LoT4w163w@mudos.ann-arbor.mi.us> mju@mudos.ann-arbor.mi.us (Marc Unangst) writes: >joshi@motcid.UUCP (Abhay B. Joshi) writes: >> I have a simple text-file containing the following text (3 lines): >> >> The goal: >> All I am trying to do is replace the 'the's by 'an's. >> That's all. > >Son, vi is the wrong tool for the job. > >ed file <<Frobozz >1,$g/the/s//an/g >w >q >Frobozz > Well, I wouldn't say vi is the "wrong tool for the job"! Simply do the following: :%s/the/an/g This is the equivalent of the above ed command...which boils down to a matter of personal taste. The only problem I see with either of these solutions, is that the word "theatre" becomes the word "anatre"....boo-hisss! A more practical solution would be in three steps, like so: :%s/ the / an /g :%s/^the /an /g :%s/ the$/ an/g There is probably a fancier way to do all of this in one swift move but it escapes me for now. Do note the use of spaces and the fact that we are also looking for the 'the's that are at the begining and ending of lines while preserving the integerity of words like "either", "theatre", etc.
stadt@cs.utwente.nl (Richard van de Stadt) (12/06/90)
In article <5315@graphite20.UUCP>, joshi@motcid.UUCP (Abhay B. Joshi) writes: |> I couldn't find a newsgroup for vi questions, hence this intrusion. |> |> I have a simple text-file containing the following text (3 lines): |> |> The goal: |> All I am trying to do is replace the 'the's by 'an's. |> That's all. |> |> I set up a .exrc in the current directory which looks like (2 lines): |> :g/the/ s//an/g |> |> Now I tried to do a 'vi text-file', I got a coredump! About 10 times. |> Then I deleted the .exrc file and put the command in EXINIT. |> I got a coredump again. (No coredump if neither .exrc nor EXINIT exists) |> On a SPARCstation 1+ I get a segmentation fault -- R.R. van de Stadt (Richard) Email: stadt@cs.utwente.nl
rob@b15.INGR.COM (Rob Lemley) (12/08/90)
In <5315@graphite20.UUCP> joshi@motcid.UUCP (Abhay B. Joshi) writes: >I couldn't find a newsgroup for vi questions, hence this intrusion. Try comp.editors, very knowledgeable vi gurus read that group.
skwu@boulder.Colorado.EDU (WU SHI-KUEI) (12/09/90)
In article <q5LoT4w163w@mudos.ann-arbor.mi.us> mju@mudos.ann-arbor.mi.us (Marc Unangst) writes: ..other stuff >> The goal: >> All I am trying to do is replace the 'the's by 'an's. >> That's all. > >Son, vi is the wrong tool for the job. > >ed file <<Frobozz >1,$g/the/s//an/g >w >q >Frobozz ... more stuff deleted >-- >Marc Unangst | >mju@mudos.ann-arbor.mi.us | "Bus error: passengers dumped" >...!umich!leebai!mudos!mju | Sonny boy, it ain't all that easy - your solution changes all instances of 'theatre' to 'anatre', 'gather' to 'gaanr', etc., etc. It takes three commands in 'ed' or 'sed' to accomplish the original task: g/^the /s//an/g g/ the /s//an/g g/ the$/s//an/g If the 'the's may be preceded or followed by tabs as well as spaces, things may be even more complicated.
tchrist@convex.COM (Tom Christiansen) (12/09/90)
In article <1990Dec9.033641.9731@csn.org> skwu@spot.Colorado.EDU (WU SHI-KUEI) writes:
:>> The goal:
:>> All I am trying to do is replace the 'the's by 'an's.
:>> That's all.
:Sonny boy, it ain't all that easy - your solution changes all instances of
:'theatre' to 'anatre', 'gather' to 'gaanr', etc., etc. It takes three commands
:in 'ed' or 'sed' to accomplish the original task:
:
: g/^the /s//an/g
: g/ the /s//an/g
: g/ the$/s//an/g
:
:If the 'the's may be preceded or followed by tabs as well as spaces, things
:may be even more complicated.
*PLEASE* don't spread misinformation. All it takes is a simple \<the\> in
the expression to take care of those cases.
%s/\<the\>/an/g
--tom
--
Tom Christiansen tchrist@convex.com convex!tchrist
"With a kernel dive, all things are possible, but it sure makes it hard
to look at yourself in the mirror the next morning." -merouben@math13.math.umbc.edu (Rouben Rostamian) (12/10/90)
A long, long time ago someone wanted help with: >>> All I am trying to do is replace the 'the's by 'an's. >>> That's all. There have been several cycles of wrong or partially wrong solutions followed by the right solution. I am sure that the original poster has lost interest in these followups, however since it appears that we are at the beginning of a new cycle of Rube Goldberg-ish solutions, I feel that I should remind those who have not been paying attention that the correct solution is: :%s/\<the\>/an/g The regular expression \<the\> picks up the pattern "the" delimited by whitespace or "the" at the beginning or end of lines. Therefore "theatre" does not change into "anatre". Let's see if this ends the debate. -- Rouben Rostamian Telephone: (301) 455-2458 Department of Mathematics and Statistics e-mail: University of Maryland Baltimore County bitnet: rostamian@umbc Baltimore, MD 21228, U.S.A. internet: rostamian@umbc3.umbc.edu
mercer@npdiss1.StPaul.NCR.COM (Dan Mercer) (12/11/90)
In article <1990Dec6.135646@cs.utwente.nl> stadt@cs.utwente.nl (Richard van de Stadt) writes: :In article <5315@graphite20.UUCP>, joshi@motcid.UUCP (Abhay B. Joshi) writes: :|> I couldn't find a newsgroup for vi questions, hence this intrusion. :|> :|> I have a simple text-file containing the following text (3 lines): :|> :|> The goal: :|> All I am trying to do is replace the 'the's by 'an's. :|> That's all. :|> :|> I set up a .exrc in the current directory which looks like (2 lines): :|> :g/the/ s//an/g :|> :|> Now I tried to do a 'vi text-file', I got a coredump! About 10 times. :|> Then I deleted the .exrc file and put the command in EXINIT. :|> I got a coredump again. (No coredump if neither .exrc nor EXINIT exists) :|> : :On a SPARCstation 1+ I get a segmentation fault : I won't ask why you're attempting this. However, at the time the exinit processing occurs, there is not yet an identifiable file (I ran into this problem several years ago). So it is not at all surprising that attempts to edit non-existent data result in memory errors. On NCR Towers, you get "No lines in buffer". (On the other hand, Towers will allow you to vi /dev/ether0, which craps out the entire machine). -- Dan Mercer NCR Network Products Division - Network Integration Services Reply-To: mercer@npdiss1.StPaul.NCR.COM (Dan Mercer) "MAN - the only one word oxymoron in the English Language"