/*-
 * Copyright (c) 2013 James K. Lowden
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>

#include <sys/mman.h>

#include "parser.h"
#include "../csvtab.h"

static const char test00[] = "1,2,3,4,5";
static const char test01[] = " 1,2 , 	3	  ,4,5";

const char *input = test00;

void 
print_err(const char data[], const char msg[])
{
  fprintf(stderr, "%s at %lu\n", msg, data - input);
}

void print_col(const char data[], size_t len, void * vprow)
{
  char *output = alloca(1 + len);
  memcpy(output, data, len);
  output[len] = '\0';
  printf("%l3u bytes: '%s'\n", len, output);
}

const char *
init( const char *path, size_t *plen)
{
  const char *p;

  int fd = open(path, O_RDONLY, 0);
  if( fd < 0 ) {
    err(errno, "%s: '%s'",  __FUNCTION__, path);
  }

  if( (*plen = lseek(fd, 0, SEEK_END)) < 0 ) {
    err(errno, __FUNCTION__);
  }
  
  if( (p = mmap(NULL, *plen, PROT_READ, MAP_FILE, fd, 0)) == MAP_FAILED ) {
    err(errno, __FUNCTION__);
  }
  return p;
}

int main( int argc, char *argv[] ) 
{
  const char *p;
  size_t len;
  struct row_t row = { 0, 0, NULL };

  if( argc < 2 ) {
    input = test00;
    len = strlen(input);
  } else {
    input = init(argv[1], &len);
  }

  set_error_handler(print_err);

  p=input ;
  while( (p = parse(p, len, print_col, &row)) < input + len ); 

  return EXIT_SUCCESS;
}