[ale] swap 2 fields (in a tabbed file)

[Geoffrey]

Next, raw.

cfowler wrote:
> 
> On Wed, 2003-01-29 at 22:45, Geoffrey wrote:       .file   "test.c"
>         .version        "01.01"
> gcc2_compiled.:
>                 .section        .rodata
> .LC0:
>         .string "r"
> .LC1:
>         .string "%s\t%s\r\n"
> .text
>         .align 4
> .globl main
>         .type    main, at function
> main:
>         pushl   %ebp
>         movl    %esp, %ebp
>         subl    $1064, %esp
>         subl    $8, %esp
>         pushl   $.LC0
>         movl    12(%ebp), %eax
>         addl    $4, %eax
>         pushl   (%eax)
>         call    fopen
>         addl    $16, %esp
>         movl    %eax, %eax
>         movl    %eax, -12(%ebp)
>         .p2align 2
> .L3:
>         subl    $4, %esp
>         pushl   -12(%ebp)
>         pushl   $1024
>         leal    -1048(%ebp), %eax
>         pushl   %eax
>         call    fgets
>         addl    $16, %esp
>         movl    %eax, %eax
>         testl   %eax, %eax
>         jne     .L5
>         jmp     .L4
>         .p2align 2
> .L5:
>         leal    -1048(%ebp), %eax
>         movl    %eax, -1056(%ebp)
>         subl    $8, %esp
>         pushl   $9
>         leal    -1048(%ebp), %eax
>         pushl   %eax
>         call    strchr
>         addl    $16, %esp
>         movl    %eax, -1052(%ebp)
>         movl    -1052(%ebp), %eax
>         testl   %eax, %eax
>         je      .L6
>         movl    -1052(%ebp), %eax
>         movb    $0, (%eax)
>         leal    -1052(%ebp), %eax
>         incl    (%eax)
> .L6:
>         movl    -1052(%ebp), %eax
>         movl    %eax, -1060(%ebp)
>         subl    $8, %esp
>         pushl   $13
>         pushl   -1052(%ebp)
>         call    strchr
>         addl    $16, %esp
>         movl    %eax, -1052(%ebp)
>         movl    -1052(%ebp), %eax
>         testl   %eax, %eax
>         je      .L7
>         leal    -1052(%ebp), %eax
>         incl    (%eax)
> .L7:
>         pushl   -1056(%ebp)
>         pushl   -1060(%ebp)
>         pushl   $.LC1
>         pushl   stdout
>         call    fprintf
>         addl    $16, %esp
>         jmp     .L3
>         .p2align 2
> .L4:
>         movl    $0, %eax
>         leave
>         ret
> .Lfe1:
>         .size    main,.Lfe1-main 
>         .ident  "GCC: (GNU) 2.96 20000731 (Red Hat Linux 7.3 2.96-113)"
>                                                                         
> 
>>I want to see it in assembler..
>>
>>cfowler wrote:
>>
>>>int
>>>main(int argc, char **argv) {
>>>    FILE *fp;
>>>    char buffer[1024];
>>>    char *ptr, *s1, *s2;
>>>
>>>    fp = fopen(argv[1], "r");
>>>
>>>    while(fgets(buffer, 1024, fp) != NULL) {
>>>      
>>>       // Find first tab
>>>       s1 = buffer;
>>>       if((ptr = strchr(buffer, '\t')) != NULL)
>>>           *ptr++ = 0;
>>>
>>>       // Find the <CR>
>>>       s2 = ptr;
>>>       if((ptr =strchr(ptr, 0x0d)) != NULL)
>>>           *ptr++;
>>>
>>>       // Write to stdout and reverse them
>>>       fprintf(stdout("%s\t%s\r\n", s2, s1);
>>>    }
>>>   
>>>}
>>>
>>>  
>>>That was C.  How about someone do perl now.
>>>
>>>On 12/31/1969, "matty91 at bellsouth.net" <matty91 at bellsouth.net> wrote:
>>>
>>>
>>>
>>>>awk '{ print $2, " ", $1 }' /some/path/to/file
>>>>
>>>>On Wed, 29 Jan 2003, Christopher Bergeron wrote:
>>>>
>>>>
>>>>
>>>>>-----BEGIN PGP SIGNED MESSAGE-----
>>>>>Hash: SHA1
>>>>>
>>>>>Does anyone know how I can swap 2 fields in a tab delimited file
>>>>>containing 2 fields?
>>>>>
>>>>>Here's an example of my data:
>>>>>~ <TAB>WOODSTOCK OUTLET<CR>
>>>>>AF100<TAB>METRO AUDIO DYNAMI<CR>
>>>>>
>>>>>What I'd like to do is swap the 2 fields (or do a `sort` based on the
>>>>>second field!) such that I end up with this:
>>>>>WOODSTOCK OUTLET<TAB> <CR>
>>>>>METRO AUDIO DYNAMICS<TAB>AF100<CR>
>>>>>
>>>>>Does anyone know of a way I can accomplish this?  I tried using cut
>>>>>- -f2,1 -d"t" but no adeu...
>>>>>
>>>>>As always, much thanks in advance!
>>>>>- -CB
>>>>>-----BEGIN PGP SIGNATURE-----
>>>>>Version: GnuPG v1.2.1 (MingW32)
>>>>>Comment: Using GnuPG with Netscape - http://enigmail.mozdev.org
>>>>>
>>>>>iD8DBQE+OBDCTKCy0t3zQgURAjNTAJ4+scGLwJ68zyWNCQi3zOioVQHYSgCgsbsd
>>>>>OQXrEikvL57cV8/Tj1vuqLg=
>>>>>=3GQm
>>>>>-----END PGP SIGNATURE-----
>>>>>
>>>>>
>>>>>_______________________________________________
>>>>>Ale mailing list
>>>>>Ale at ale.org
>>>>>http://www.ale.org/mailman/listinfo/ale
>>>>>
>>>>
>>>>_______________________________________________
>>>>Ale mailing list
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>>>>http://www.ale.org/mailman/listinfo/ale
>>>>
>>>
>>>_______________________________________________
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>>>http://www.ale.org/mailman/listinfo/ale
>>>
>>>
>>
>>-- 
>>Until later: Geoffrey		esoteric at 3times25.net
>>
>>The latest, most widespread virus?  Microsoft end user agreement.
>>Think about it...
>>
>>_______________________________________________
>>Ale mailing list
>>Ale at ale.org
>>http://www.ale.org/mailman/listinfo/ale
> 
> 
> 
> _______________________________________________
> Ale mailing list
> Ale at ale.org
> http://www.ale.org/mailman/listinfo/ale
> 
> 

-- 
Until later: Geoffrey		esoteric at 3times25.net

The latest, most widespread virus?  Microsoft end user agreement.
Think about it...

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