Re: Problem with CR-LF sensitivity

[John Buffington <jbuff at pacific dot net>]

Been doing a lot of translation with tr lately, so this is fresh in my mind.
I'm sure Larry knows this, but for the benefit of others, here's my favorite tr
commands.

tr \\n\\r \\n   Translates a dos file on stdin to a unix file on stdout
tr \\n \\n\\r   Does the inverse
tr \\r \\n       Translates a mac file to unix
tr \\n \\r       Does the inverse
tr \\r \\n\\r    Translates a mac file to a dos file
tr \\n\\r \\r     Does the inverse

--jbuff


At 06:00 PM 5/16/00 -0500, you wrote:
>There's also versions of dos2unix out there that will do this same thing.
>tr, which comes with the distribution, will allow you to generate a file
>without carriage returns, given a file as input with them too.  Both options
>do something similar to the program provided below.
>
>Larry
>
>
>At 04:39 PM 5/16/00, Mark Schoenberg wrote:
> >Xandy,
> >
> >      I too had tremendous problems with the change in the CR/LF 
> paradigm with
> >1.1.0 as compared to B20.1.  I wrote a small program, reproduced below, 
> which
> >strips the CRs from files and solved most of the problems.  A problem that
> >remained for me was that emacs, which I was using, would put CRs in 
> files and
> >not tell you.  If you are really interested, I can tell you how to solve the
> >emacs problem as well.
> >
> >      Having struggled, like you, I think it is worthwhile upgrading to 
> 1.1.0.
> >If you don't wish to, I found it pretty easy (in Windows 98) to go get 
> rid of
> >1.1.0 by going to "Start"/"Programs"/"Cynus Solutions"/"Uninstall Cygwin
> >1.1.0".  That seemed to work pretty well.  Believe me, I did it at least 
> twice
> >before becoming convinced 1.1 was worth it.  I only succeeded in installing
> >1.1.0 when I chose \ as the root directory.  I suspect choosing other root
> >directories is possible, but I couldn't figure how to succeed without 
> choosing
> >\.
> >
> >      The program below for stripping CRs won't work for you as is, 
> because it
> >uses stuff only I have, like /u/local/include/stdhdr.h and getans, but it
> >should be able to be easily modified.  stdhdr.h simply includes the 
> necessary
> >system header (.h) files, and getans(a, b) simply gets the answer to 
> question a
> >and stores it as string b.
> >
> >    The only significant aspect to the program is the binary read of an 
> input
> >file (note the setmode instruction), and the binary write of an output 
> file of
> >all characters except CR, '\015'.
> >
> >      I am sure there are more sophisticated solutions but this worked for a
> >dummy like me.
> >
> >#include "/u/local/include/stdhdr.h"
> >#include <ctype.h>
> >
> >int fileoncom, argn, f1, f2, n, c;
> >FILE *ip,*ip2,*fp,*fopen();
> >char filnam[80], outfil[80], buf[1];
> >
> >main(argc,argv)
> >      int argc;
> >      char **argv;
> >{
> >
> >   getans("Input filename?:",filnam);
> >   if ((f1=open(filnam, O_RDONLY, 0)) == -1) {
> >     perror("!stripcr2: Can't open input file!");
> >     exit (-1);
> >   }
> >   setmode(f1,O_BINARY);
> >
> >   getans("Ouput filename?:",outfil);
> >   if ((f2=open(outfil, O_CREAT | O_WRONLY | O_TRUNC, 0644)) == -1) {
> >     perror("!stripcr2: Can't open output file!");
> >     exit (-1);
> >   }
> >   setmode(f2,O_BINARY);
> >
> >
> >
> >   while ((n = read(f1 ,buf, 1)) > 0) { /* Binary read, 1 char at a 
> time > buf */
> >     c = *buf;
> >     // printf("MSDEBUG c = %d\n",c);
> >     if (c != '\015') write(f2,buf,1);
> >   }
> >   close(f1);
> >   close(f2);
> >}
> >
> >
> >
> >--
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>
>
>
>--
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