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regex/split.c
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#include <stdio.h>
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#include <string.h>
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int split(char *string, char *fields[], int nfields, char *sep);
 
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/*
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 - split - divide a string into fields, like awk split()
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 = int split(char *string, char *fields[], int nfields, char *sep);
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 */
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int                             /* number of fields, including overflow */
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split(string, fields, nfields, sep)
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char *string;
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char *fields[];                 /* list is not NULL-terminated */
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int nfields;                    /* number of entries available in fields[] */
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char *sep;                      /* "" white, "c" single char, "ab" [ab]+ */
 
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int                     /* number of fields, including overflow */
 
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split(char *string,
 
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      char *fields[],   /* list is not NULL-terminated */
 
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      int nfields,      /* number of entries available in fields[] */
 
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      char *sep)        /* "" white, "c" single char, "ab" [ab]+ */
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{
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        register char *p = string;
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        register char c;                        /* latest character */