text: /****************************************************************************
   * Copyright (c) 1998-2006,2007 Free Software Foundation, Inc.              *
   *                                                                          *
   * Permission is hereby granted, free of charge, to any person obtaining a  *
   * copy of this software and associated documentation files (the            *
   * "Software"), to deal in the Software without restriction, including      *
   * without limitation the rights to use, copy, modify, merge, publish,      *
   * distribute, distribute with modifications, sublicense, and/or sell       *
   * copies of the Software, and to permit persons to whom the Software is    *
   * furnished to do so, subject to the following conditions:                 *
   *                                                                          *
   * The above copyright notice and this permission notice shall be included  *
   * in all copies or substantial portions of the Software.                   *
   *                                                                          *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
   * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
   * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
   * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
   * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
   * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
   * THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
   *                                                                          *
   * Except as contained in this notice, the name(s) of the above copyright   *
   * holders shall not be used in advertising or otherwise to promote the     *
   * sale, use or other dealings in this Software without prior written       *
   * authorization.                                                           *
   ****************************************************************************/
  
  /***************************************************************************
  *                                                                          *
  *  Author : Juergen Pfeifer                                                *
  *                                                                          *
  ***************************************************************************/
  
  #include "form.priv.h"
  
  MODULE_ID("$Id: fty_alpha.c,v 1.8 2010/01/12 23:22:07 nicm Exp $")
  
  #define thisARG alphaARG
  
  typedef struct
    {
      int width;
    }
  thisARG;
  
  /*---------------------------------------------------------------------------
  |   Facility      :  libnform
  |   Function      :  static void *Make_This_Type(va_list *ap)
  |
  |   Description   :  Allocate structure for alpha type argument.
  |
  |   Return Values :  Pointer to argument structure or NULL on error
  +--------------------------------------------------------------------------*/
  static void *
  Make_This_Type(va_list *ap)
  {
    thisARG *argp = typeMalloc(thisARG, 1);
  
    if (argp)
      {
        T((T_CREATE("thisARG %p"), argp));
        argp->width = va_arg(*ap, int);
      }
  
    return ((void *)argp);
  }
  
  /*---------------------------------------------------------------------------
  |   Facility      :  libnform
  |   Function      :  static void *Copy_This_Type(const void * argp)
  |
  |   Description   :  Copy structure for alpha type argument.
  |
  |   Return Values :  Pointer to argument structure or NULL on error.
  +--------------------------------------------------------------------------*/
  static void *
  Copy_This_Type(const void *argp)
  {
    const thisARG *ap = (const thisARG *)argp;
    thisARG *result = typeMalloc(thisARG, 1);
  
    if (result)
      {
        T((T_CREATE("thisARG %p"), result));
        *result = *ap;
      }
  
    return ((void *)result);
  }
  
  /*---------------------------------------------------------------------------
  |   Facility      :  libnform
  |   Function      :  static void Free_This_Type(void *argp)
  |
  |   Description   :  Free structure for alpha type argument.
  |
  |   Return Values :  -
  +--------------------------------------------------------------------------*/
  static void
  Free_This_Type(void *argp)
  {
    if (argp)
      free(argp);
  }
  
  /*---------------------------------------------------------------------------
  |   Facility      :  libnform
  |   Function      :  static bool Check_This_Character(
  |                                      int c,
  |                                      const void *argp)
  |
  |   Description   :  Check a character for the alpha type.
  |
  |   Return Values :  TRUE  - character is valid
  |                    FALSE - character is invalid
  +--------------------------------------------------------------------------*/
  static bool
  Check_This_Character(int c, const void *argp GCC_UNUSED)
  {
  #if USE_WIDEC_SUPPORT
    if (iswalpha((wint_t) c))
      return TRUE;
  #endif
    return (isalpha(UChar(c)) ? TRUE : FALSE);
  }
  
  /*---------------------------------------------------------------------------
  |   Facility      :  libnform
  |   Function      :  static bool Check_This_Field(
  |                                      FIELD *field,
  |                                      const void *argp)
  |
  |   Description   :  Validate buffer content to be a valid alpha value
  |
  |   Return Values :  TRUE  - field is valid
  |                    FALSE - field is invalid
  +--------------------------------------------------------------------------*/
  static bool
  Check_This_Field(FIELD *field, const void *argp)
  {
    int width = ((const thisARG *)argp)->width;
    unsigned char *bp = (unsigned char *)field_buffer(field, 0);
    bool result = (width < 0);
  
    Check_CTYPE_Field(result, bp, width, Check_This_Character);
    return (result);
  }
  
  static FIELDTYPE typeTHIS =
  {
    _HAS_ARGS | _RESIDENT,
    1,				/* this is mutable, so we can't be const */
    (FIELDTYPE *)0,
    (FIELDTYPE *)0,
    Make_This_Type,
    Copy_This_Type,
    Free_This_Type,
    Check_This_Field,
    Check_This_Character,
    NULL,
    NULL
  };
  
  NCURSES_EXPORT_VAR(FIELDTYPE*) TYPE_ALPHA = &typeTHIS;
  
  /* fty_alpha.c ends here */
  