GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: lib/libform/fty_num.c Lines: 0 57 0.0 %
Date: 2017-11-13 Branches: 0 66 0.0 %

Line Branch Exec Source
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/*	$OpenBSD: fty_num.c,v 1.9 2015/01/23 22:48:51 krw Exp $	*/
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/****************************************************************************
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 * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
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 *                                                                          *
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 * Permission is hereby granted, free of charge, to any person obtaining a  *
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 * copy of this software and associated documentation files (the            *
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 * "Software"), to deal in the Software without restriction, including      *
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 * without limitation the rights to use, copy, modify, merge, publish,      *
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 * distribute, distribute with modifications, sublicense, and/or sell       *
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 * copies of the Software, and to permit persons to whom the Software is    *
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 * furnished to do so, subject to the following conditions:                 *
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 *                                                                          *
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 * The above copyright notice and this permission notice shall be included  *
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 * in all copies or substantial portions of the Software.                   *
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 *                                                                          *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
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 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
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 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
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 * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
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 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
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 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
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 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
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 *                                                                          *
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 * Except as contained in this notice, the name(s) of the above copyright   *
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 * holders shall not be used in advertising or otherwise to promote the     *
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 * sale, use or other dealings in this Software without prior written       *
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 * authorization.                                                           *
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 ****************************************************************************/
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/***************************************************************************
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*                                                                          *
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*  Author : Juergen Pfeifer                                                *
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*                                                                          *
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***************************************************************************/
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#include "form.priv.h"
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MODULE_ID("$Id: fty_num.c,v 1.9 2015/01/23 22:48:51 krw Exp $")
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#if HAVE_LOCALE_H
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#include <locale.h>
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#endif
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#if HAVE_LOCALE_H
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#define isDecimalPoint(c) ((c) == ((L && L->decimal_point) ? *(L->decimal_point) : '.'))
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#else
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#define isDecimalPoint(c) ((c) == '.')
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#endif
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#if USE_WIDEC_SUPPORT
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#define isDigit(c) (iswdigit((wint_t)(c)) || isdigit(UChar(c)))
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#else
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#define isDigit(c) isdigit(UChar(c))
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#endif
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#define thisARG numericARG
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typedef struct
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  {
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    int precision;
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    double low;
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    double high;
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    struct lconv *L;
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  }
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thisARG;
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  static void *Make_This_Type(va_list * ap)
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|
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|   Description   :  Allocate structure for numeric type argument.
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|
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|   Return Values :  Pointer to argument structure or NULL on error
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+--------------------------------------------------------------------------*/
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static void *
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Make_This_Type(va_list *ap)
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{
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  thisARG *argn = typeMalloc(thisARG, 1);
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  if (argn)
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    {
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      T((T_CREATE("thisARG %p"), argn));
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      argn->precision = va_arg(*ap, int);
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      argn->low = va_arg(*ap, double);
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      argn->high = va_arg(*ap, double);
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#if HAVE_LOCALE_H
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      argn->L = localeconv();
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#else
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      argn->L = NULL;
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#endif
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    }
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  return (void *)argn;
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}
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  static void *Copy_This_Type(const void * argp)
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|
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|   Description   :  Copy structure for numeric type argument.
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|
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|   Return Values :  Pointer to argument structure or NULL on error.
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+--------------------------------------------------------------------------*/
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static void *
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Copy_This_Type(const void *argp)
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{
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  const thisARG *ap = (const thisARG *)argp;
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  thisARG *result = (thisARG *) 0;
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  if (argp)
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    {
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      result = typeMalloc(thisARG, 1);
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      if (result)
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	{
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	  T((T_CREATE("thisARG %p"), result));
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	  *result = *ap;
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	}
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    }
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  return (void *)result;
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}
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  static void Free_This_Type(void * argp)
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|
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|   Description   :  Free structure for numeric type argument.
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|
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|   Return Values :  -
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+--------------------------------------------------------------------------*/
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static void
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Free_This_Type(void *argp)
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{
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  if (argp)
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    free(argp);
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}
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  static bool Check_This_Field(FIELD * field,
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|                                                 const void * argp)
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|
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|   Description   :  Validate buffer content to be a valid numeric value
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|
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|   Return Values :  TRUE  - field is valid
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|                    FALSE - field is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_This_Field(FIELD *field, const void *argp)
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{
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  const thisARG *argn = (const thisARG *)argp;
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  double low = argn->low;
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  double high = argn->high;
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  int prec = argn->precision;
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  unsigned char *bp = (unsigned char *)field_buffer(field, 0);
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  char *s = (char *)bp;
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  double val = 0.0;
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  struct lconv *L = argn->L;
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  char buf[64];
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  bool result = FALSE;
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  while (*bp && *bp == ' ')
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    bp++;
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  if (*bp)
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    {
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      if (*bp == '-' || *bp == '+')
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	bp++;
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#if USE_WIDEC_SUPPORT
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      if (*bp)
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	{
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	  bool blank = FALSE;
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	  int state = 0;
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	  int len;
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	  int n;
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	  wchar_t *list = _nc_Widen_String((char *)bp, &len);
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	  if (list != 0)
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	    {
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	      result = TRUE;
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	      for (n = 0; n < len; ++n)
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		{
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		  if (blank)
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		    {
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		      if (list[n] != ' ')
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			{
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			  result = FALSE;
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			  break;
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			}
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		    }
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		  else if (list[n] == ' ')
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		    {
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		      blank = TRUE;
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		    }
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		  else if (isDecimalPoint(list[n]))
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		    {
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		      if (++state > 1)
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			{
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			  result = FALSE;
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			  break;
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			}
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		    }
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		  else if (!isDigit(list[n]))
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		    {
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		      result = FALSE;
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		      break;
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		    }
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		}
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	      free(list);
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	    }
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	}
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#else
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      while (*bp)
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	{
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	  if (!isdigit(UChar(*bp)))
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	    break;
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	  bp++;
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	}
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      if (isDecimalPoint(*bp))
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	{
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	  bp++;
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	  while (*bp)
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	    {
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	      if (!isdigit(UChar(*bp)))
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		break;
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	      bp++;
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	    }
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	}
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      while (*bp && *bp == ' ')
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	bp++;
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      result = (*bp == '\0');
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#endif
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      if (result)
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	{
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	  val = atof(s);
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	  if (low < high)
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	    {
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	      if (val < low || val > high)
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		result = FALSE;
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	    }
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	  if (result)
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	    {
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	      snprintf(buf, sizeof(buf), "%.*f", (prec > 0 ? prec : 0), val);
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	      set_field_buffer(field, 0, buf);
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	    }
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	}
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    }
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  return (result);
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}
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/*---------------------------------------------------------------------------
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|   Facility      :  libnform
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|   Function      :  static bool Check_This_Character(
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|                                      int c,
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|                                      const void * argp)
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|
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|   Description   :  Check a character for the numeric type.
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|
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|   Return Values :  TRUE  - character is valid
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|                    FALSE - character is invalid
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+--------------------------------------------------------------------------*/
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static bool
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Check_This_Character(int c, const void *argp)
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{
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  const thisARG *argn = (const thisARG *)argp;
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  struct lconv *L = argn->L;
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  return ((isDigit(c) ||
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	   c == '+' ||
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	   c == '-' ||
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	   isDecimalPoint(c))
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	  ? TRUE
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	  : FALSE);
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}
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static FIELDTYPE typeTHIS =
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{
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  _HAS_ARGS | _RESIDENT,
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  1,				/* this is mutable, so we can't be const */
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  (FIELDTYPE *)0,
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  (FIELDTYPE *)0,
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  Make_This_Type,
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  Copy_This_Type,
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  Free_This_Type,
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  Check_This_Field,
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  Check_This_Character,
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  NULL,
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  NULL
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};
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NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_NUMERIC = &typeTHIS;
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/* fty_num.c ends here */