NAME
bufsplit() — split buffer into fields
SYNOPSIS
#include <libgen.h>
size_t bufsplit(char *buf,
size_t n,
char **a);
DESCRIPTION
bufsplit
examines the buffer,
buf,
and assigns values to the pointer array,
a,
so that the pointers point to the first
n
fields in
buf
that are delimited by tabs or new-lines.
To change the characters used to separate fields, call
bufsplit
with
buf
pointing to the string of characters, and
n
and
a
set to zero.
For example, to use ':', '.', and ',' as
separators along with tab and new-line:
bufsplit(":.,\t\n", 0, (char**)0);
RETURN VALUE
The number of fields assigned in the array
a.
If
buf
is zero, the return value is zero and the array is unchanged.
Otherwise the value is at least one.
The remainder of the elements in the array are assigned the address
of the null byte at the end of the buffer.
APPLICATION USAGE
bufsplit
is not thread safe. It is async-cancel-safe.
EXAMPLES
/*
* set a[0] = "This", a[1] = "is", a[2] = "a",
* a[3] = "test"
*/
bufsplit("This\tis\ta\ttest\n", 4, a);
WARNINGS
bufsplit
changes the delimiters to null bytes in
buf.
