// cppawk: C preprocessor wrapper around awk
// Copyright 2022 Kaz Kylheku <kaz@kylheku.com>
//
// BSD-2 License
//
// 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.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT HOLDER 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.

#ifndef __CPPAWK_ARRAY_H
#define __CPPAWK_ARRAY_H

#ifndef __CPPAWK_BASE_H
#include "base.h"
#endif

#ifndef __CPPAWK_ITER_PRIV_H
#include "iter-priv.h"
#endif

#ifndef __CPPAWK_CONS_PRIV_H
#include "cons-priv.h"
#endif

#if __have_indirect_functions
#ifndef __CPPAWK_FUN_PRIV_H
#include "fun-priv.h"
#endif
#endif

function fields_to_array(__to_array,
                         __i, __val)
{
  delete __to_array

  __to_array[0] = $0

  __dofields (__i, __val)
    __to_array[__i] = __val
}

function array_to_fields(__from_array,
                         __i, __val)
{
  for (__i = 0; ; __i++)
    if (__i in __from_array)
      $__i = __from_array[__i]
    else
      break
}

#if __have_indirect_functions

function maparray(__fun, __from_array, __to_array)
{
  delete __to_array
  __doarray (key, value, __from_array)
    __to_array[key] = __call(__fun, value)
}

function group_by(__fun, __list, __to_array,
                  __item, __key)
{
  delete __to_array

  __dolist (__item, __list) {
    __key = __call(__fun, __item)
    if (__key in __to_array)
      __to_array[__key] = __list_add(__to_array[__key], __item)
    else
      __to_array[__key] = __list_add(__list_begin(), __item)
  }

  for (__key in __to_array)
    __to_array[__key] = __list_end(__to_array[__key])
}

#endif

#endif