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#include "byte.h"
#include "getln.h"
/**
@file getln.c
@author djb
@source qmail
@brief evaluting tokenized input arguments
*/
int getln(buffer *b,stralloc *sa,int *match,int sep)
{
char *cont;
unsigned int clen;
if (sgetln(b,sa,&cont,&clen,sep) == -1) return -1;
if (!clen) { *match = 0; return 0; }
if (!stralloc_catb(sa,cont,clen)) return -1;
*match = 1;
return 0;
}
int sgetln(buffer *b,stralloc *sa,char **cont,unsigned int *clen,int sep)
{
register char *x;
register unsigned int i;
int n;
if (!stralloc_ready(sa,0)) return -1;
sa->len = 0;
for (;;) {
n = buffer_feed(b);
if (n < 0) return -1;
if (n == 0) { *clen = 0; return 0; }
x = buffer_PEEK(b);
i = byte_chr(x,n,sep);
if (i < n) { buffer_SEEK(b,*clen = i + 1); *cont = x; return 0; }
if (!stralloc_readyplus(sa,n)) return -1;
i = sa->len;
sa->len = i + buffer_get(b,sa->s + i,n);
}
}
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