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/*
* csvsplit.c: simple CSV splitting (csvForeach), useful utility function
*
* (C) Duncan C. White, May 2017
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <assert.h>
#include "csvsplit.h"
/*
* csvForeach( csvstring, &foreach_callback, (void *)extravalue );
* Split csvstring into each comma-separated field, calling the
* foreach calback for each comma-separated field, passing the
* value and extravalue as parameters to it. It doesn't deal
* with commas in quoted strings, however.
*/
void csvForeach( char *csvstring, csvforeachcb cb, void *extra )
{
// we need to modify the string, so make a mutable copy..
char *copy = strdup( csvstring );
char *start = copy;
for(;;)
{
char *comma=strchr( start, ',' );
if( comma != NULL )
{
// found the first comma after start
*comma = '\0';
}
//printf( "debug: csvForeach: found value %s\n", start );
(*cb)( start, extra );
if( comma == NULL ) break;
// move start to one beyond where comma was..
start = comma+1;
}
// don't forget to..
free( copy );
}
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