varstr *
varstr_fromstr(char *str)
{
varstr * v = varstr_new(strlen(str));
return varstr_cat(v, str);
}
varstr *
varstr_sprintf(varstr *v, char *fmt, ...)
{
va_list ap;
char * str;
va_start(ap, fmt);
vasprintf(&str, fmt, ap);
va_end(ap);
varstr_cat(v, str);
free(str);
return v;
}
const char *
linereader_next( struct linereader *p )
{
varstr_empty( p->text );
for ( ;; ) { /* loop to consume a single line */
if ( NULL == fgets( p->buf, _BUFSIZE, p->in ) ) {
if ( strlen( varstr_str( p->text ) ) == 0 ) /* eof and no text accumulated -- done! */
return NULL;
else
break;
}
varstr_cat( p->text, p->buf );
if ( NULL != strchr( p->buf, '\n' ) )
break;
}
return ( const char * ) varstr_str( p->text );
}
