NAME
getfields, gettokens, tokenize – break a string into fields

SYNOPSIS
#include <u.h>
#include <libc.h>

int     getfields(char *str, char **args, int maxargs, int multiflag,
char *delims)

int     gettokens(char *str, char **args, int maxargs, char *delims)

int     tokenize(char *str, char **args, int maxargs)

DESCRIPTION
Getfields places into the array args pointers to the first maxargs fields of the null terminated UTF string str. Delimiters between these fields are set to NUL bytes.

Fields are substrings of str whose definition depends on the value of multiflag. If multiflag is zero, adjacent fields are separated by exactly one delimiter. For example
getfields("#alice#bob##charles###", arg, 3, 0, "#");
yields three substrings: null–string , alice, and bob##charles###. If the multiflag argument is not zero, a field is a non–empty string of non–delimiters. For example
getfields("#alice#bob##charles###", arg, 3, 1, "#");
yields the three substrings: alice, bob, and charles###.

Getfields returns the number of fields pointed to.

Gettokens is the same as getfields with multiflag non–zero, except that fields may be quoted using single quotes, in the manner of rc(1). Any such quotes remain in the resulting args. See quote(2) for related quote–handling software.

Tokenize is similar to gettokens with delims set to "\t\r\n ", except that quotes are interpreted but do not appear in the resulting args.

SOURCE
/sys/src/libc/port/tokenize.c

SEE ALSO
strtok in strcat(2), quote(2).
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