Is there a C-language equivalent for Java's String.split()?
strtok() kind of sucks: it doesn't quite the same thing, it overwrites
its arg and it keeps track of stuff secretly between call to call.
There has *got* to be a better way. UNIX/C gurus, any ideas?

-John

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johngalt__@hotmail.com (John Galt) writes:

> Is there a C-language equivalent for Java's String.split()?
> strtok() kind of sucks: it doesn't quite the same thing, it overwrites
> its arg and it keeps track of stuff secretly between call to call.
> There has *got* to be a better way. UNIX/C gurus, any ideas?

There's always strtok_r() and strsep().

--
Måns Rullgård
mru@kth.se

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Måns Rullgård <mru@kth.se> writes:

> johngalt__@hotmail.com (John Galt) writes:
> 
>
> There's always strtok_r() and strsep().
>

Strsep?

% man strsep
No manual entry for strsep.

% uname -sr
SunOS 5.10

Bye, Dragan

--
Dragan Cvetkovic,

To be or not to be is true. G. Boole      No it isn't.  L. E. J. Brouwer

!!! Sender/From address is bogus. Use reply-to one !!!

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Dragan Cvetkovic <me@privacy.net> writes:

> Måns Rullgård <mru@kth.se> writes:
> 
>
> Strsep?
>
> % man strsep
> No manual entry for strsep.
>
> % uname -sr
> SunOS 5.10

Apparently strsep exists only on BSD (and GNU).  Get a copy from the
one the BSDs, if you want to use it.

--
Måns Rullgård
mru@kth.se

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Dragan Cvetkovic wrote:
> Strsep?
>
> % man strsep
> No manual entry for strsep.
>
> % uname -sr
> SunOS 5.10
>
STRSEP(3)                  Linux Programmer’s Manual                 STRSEP(
3)

NAME
strsep - extract token from string

SYNOPSIS
#include <string.h>

char *strsep(char **stringp, const char *delim);

DESCRIPTION
If  *stringp is NULL, the strsep() function returns NULL and does noth-
ing else. Otherwise, this function finds the first token in the  string
*stringp,  where  tokens  are delimited by symbols in the string delim.
This token is terminated with a  ‘\0’  character  (by  overwriting  the
delimiter) and *stringp is updated to point past the token.  In case no
delimiter was found, the  token  is  taken  to  be  the  entire  string
*stringp, and *stringp is made NULL.

RETURN VALUE
The  strsep()  function  returns  a  pointer  to the token, that is, it
returns the original value of *stringp.

NOTES
The strsep() function was introduced as  a  replacement  for  strtok(),
since  the  latter  cannot handle empty fields.  However, strtok() con-
forms to ANSI-C and hence is more portable.

BUGS
This function suffers from the same problems as strtok().  In  particu-
lar, it modifies the original string. Avoid it.

CONFORMING TO
BSD 4.4

SEE ALSO
index(3),   memchr(3),  rindex(3),  strchr(3),  strpbrk(3),  strspn(3),
strstr(3), strtok(3)

GNU                               1993-04-12                         STRSEP(
3)

[ Post a follow-up to this message ]

John> Is there a C-language equivalent for Java's String.split()?
John> strtok() kind of sucks: it doesn't quite the same thing, it
John> overwrites its arg and it keeps track of stuff secretly between
John> call to call.  There has *got* to be a better way. UNIX/C gurus,
John> any ideas?

I had a full C implementation of split(), but threw it away when I got a
new machine.  As you can imagine, it was tricky, calling realloc() many
times.  Now I think when I _really_ need split (and routines like strspn
won't work) it's time to switch to another language.

--
Nothing can be explained to a stone.
Or to a stoned person, either.

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