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/* $OpenBSD: form.priv.h,v 1.9 2023/10/17 09:52:10 nicm Exp $ */
/****************************************************************************
* Copyright 2018-2020,2021 Thomas E. Dickey *
* Copyright 1998-2016,2017 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, 1995,1997 *
****************************************************************************/
/* $Id: form.priv.h,v 1.9 2023/10/17 09:52:10 nicm Exp $ */
#ifndef FORM_PRIV_H
#define FORM_PRIV_H 1
/* *INDENT-OFF*/
#include "curses.priv.h"
#define NCURSES_OPAQUE_FORM 0
#include "mf_common.h"
#if USE_WIDEC_SUPPORT
#if HAVE_WCTYPE_H
#include <wctype.h>
#endif
#ifndef MB_LEN_MAX
#define MB_LEN_MAX 8 /* should be >= MB_CUR_MAX, but that may be a function */
#endif
#define FIELD_CELL NCURSES_CH_T
#define NCURSES_FIELD_INTERNALS char** expanded; WINDOW *working;
#define NCURSES_FIELD_EXTENSION , (char **)0, (WINDOW *)0
#else
#define FIELD_CELL char
#define NCURSES_FIELD_EXTENSION /* nothing */
#endif
#include "form.h"
/***********************
* Default objects *
***********************/
extern FORM_EXPORT_VAR(FORM *) _nc_Default_Form;
extern FORM_EXPORT_VAR(FIELD *) _nc_Default_Field;
extern FORM_EXPORT_VAR(FIELDTYPE *) _nc_Default_FieldType;
/* form status values */
#define _OVLMODE (0x04U) /* Form is in overlay mode */
#define _WINDOW_MODIFIED (0x10U) /* Current field window has been modified */
#define _FCHECK_REQUIRED (0x20U) /* Current field needs validation */
/* field status values */
#define _CHANGED (0x01U) /* Field has been changed */
#define _NEWTOP (0x02U) /* Vertical scrolling occurred */
#define _NEWPAGE (0x04U) /* field begins new page of form */
#define _MAY_GROW (0x08U) /* dynamic field may still grow */
/* fieldtype status values */
#define _LINKED_TYPE (0x01U) /* Type is a linked type */
#define _HAS_ARGS (0x02U) /* Type has arguments */
#define _HAS_CHOICE (0x04U) /* Type has choice methods */
#define _RESIDENT (0x08U) /* Type is built-in */
#define _GENERIC (0x10U) /* A generic field type */
/* This are the field options required to be a selectable field in field
navigation requests */
#define O_SELECTABLE (O_ACTIVE | O_VISIBLE)
/* If form is NULL replace form argument by default-form */
#define Normalize_Form(form) \
((form) = (form != 0) ? (form) : _nc_Default_Form)
/* If field is NULL replace field argument by default-field */
#define Normalize_Field(field) \
((field) = (field != 0) ? (field) : _nc_Default_Field)
#if NCURSES_SP_FUNCS
#define Get_Form_Screen(form) \
((form)->win ? _nc_screen_of((form->win)):CURRENT_SCREEN)
#else
#define Get_Form_Screen(form) CURRENT_SCREEN
#endif
/* Retrieve form's window */
#define Get_Form_Window(form) \
((form)->sub \
? (form)->sub \
: ((form)->win \
? (form)->win \
: StdScreen(Get_Form_Screen(form))))
/* Calculate the size for a single buffer for this field */
#define Buffer_Length(field) ((field)->drows * (field)->dcols)
/* Calculate the total size of all buffers for this field */
#define Total_Buffer_Size(field) \
( (size_t)(Buffer_Length(field) + 1) * (size_t)(1+(field)->nbuf) * sizeof(FIELD_CELL) )
/* Logic to determine whether or not a field is single lined */
#define Single_Line_Field(field) \
(((field)->rows + (field)->nrow) == 1)
#define Field_Has_Option(f,o) ((((unsigned)(f)->opts) & o) != 0)
/* Logic to determine whether or not a field is selectable */
#define Field_Is_Selectable(f) (((unsigned)((f)->opts) & O_SELECTABLE)==O_SELECTABLE)
#define Field_Is_Not_Selectable(f) (((unsigned)((f)->opts) & O_SELECTABLE)!=O_SELECTABLE)
typedef struct typearg
{
struct typearg *left;
struct typearg *right;
}
TypeArgument;
/* This is a dummy request code (normally invalid) to be used internally
with the form_driver() routine to position to the first active field
on the form
*/
#define FIRST_ACTIVE_MAGIC (-291056)
#define ALL_FORM_OPTS ( \
O_NL_OVERLOAD |\
O_BS_OVERLOAD )
#define STD_FIELD_OPTS (Field_Options)( \
O_VISIBLE |\
O_ACTIVE |\
O_PUBLIC |\
O_EDIT |\
O_WRAP |\
O_BLANK |\
O_AUTOSKIP|\
O_NULLOK |\
O_PASSOK |\
O_STATIC)
#define ALL_FIELD_OPTS (Field_Options)( \
STD_FIELD_OPTS |\
O_DYNAMIC_JUSTIFY |\
O_NO_LEFT_STRIP |\
O_EDGE_INSERT_STAY |\
O_INPUT_LIMIT)
#define C_BLANK ' '
#define is_blank(c) ((c)==C_BLANK)
#define C_ZEROS '\0'
extern FORM_EXPORT(TypeArgument *) _nc_Make_Argument (const FIELDTYPE*, va_list*, int*);
extern FORM_EXPORT(TypeArgument *) _nc_Copy_Argument (const FIELDTYPE*, const TypeArgument*, int*);
extern FORM_EXPORT(void) _nc_Free_Argument (const FIELDTYPE*, TypeArgument*);
extern FORM_EXPORT(bool) _nc_Copy_Type (FIELD*, FIELD const *);
extern FORM_EXPORT(void) _nc_Free_Type (FIELD *);
extern FORM_EXPORT(int) _nc_Synchronize_Attributes (FIELD*);
extern FORM_EXPORT(int) _nc_Synchronize_Options (FIELD*, Field_Options);
extern FORM_EXPORT(int) _nc_Set_Form_Page (FORM*, int, FIELD*);
extern FORM_EXPORT(int) _nc_Refresh_Current_Field (FORM*);
extern FORM_EXPORT(FIELD *) _nc_First_Active_Field (FORM*);
extern FORM_EXPORT(bool) _nc_Internal_Validation (FORM*);
extern FORM_EXPORT(int) _nc_Set_Current_Field (FORM*, FIELD*);
extern FORM_EXPORT(int) _nc_Position_Form_Cursor (FORM*);
extern FORM_EXPORT(void) _nc_Unset_Current_Field(FORM *form);
#if NCURSES_INTEROP_FUNCS
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_INTEGER(void);
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_ALNUM(void);
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_ALPHA(void);
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_ENUM(void);
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_NUMERIC(void);
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_REGEXP(void);
extern FORM_EXPORT(FIELDTYPE *) _nc_TYPE_IPV4(void);
extern FORM_EXPORT(FIELDTYPE *)
_nc_generic_fieldtype(bool (*const field_check) (FORM*,
FIELD *,
const void *),
bool (*const char_check) (int,
FORM*,
FIELD*,
const void *),
bool (*const next)(FORM*,FIELD*,const void*),
bool (*const prev)(FORM*,FIELD*,const void*),
void (*freecallback)(void*));
extern FORM_EXPORT(int) _nc_set_generic_fieldtype(FIELD*, FIELDTYPE*, int (*)(void**));
extern FORM_EXPORT(WINDOW*) _nc_form_cursor(const FORM* , int* , int* );
#define INIT_FT_FUNC(func) {func}
#else
#define INIT_FT_FUNC(func) func
#endif
extern FORM_EXPORT(void) _nc_get_fieldbuffer(FORM*, FIELD*, FIELD_CELL*);
#if USE_WIDEC_SUPPORT
extern FORM_EXPORT(wchar_t *) _nc_Widen_String(char *, int *);
#endif
#ifdef TRACE
#define returnField(code) TRACE_RETURN1(code,field)
#define returnFieldPtr(code) TRACE_RETURN1(code,field_ptr)
#define returnForm(code) TRACE_RETURN1(code,form)
#define returnFieldType(code) TRACE_RETURN1(code,field_type)
#define returnFormHook(code) TRACE_RETURN1(code,form_hook)
extern FORM_EXPORT(FIELD **) _nc_retrace_field_ptr (FIELD **);
extern FORM_EXPORT(FIELD *) _nc_retrace_field (FIELD *);
extern FORM_EXPORT(FIELDTYPE *) _nc_retrace_field_type (FIELDTYPE *);
extern FORM_EXPORT(FORM *) _nc_retrace_form (FORM *);
extern FORM_EXPORT(Form_Hook) _nc_retrace_form_hook (Form_Hook);
#else /* !TRACE */
#define returnFieldPtr(code) return code
#define returnFieldType(code) return code
#define returnField(code) return code
#define returnForm(code) return code
#define returnFormHook(code) return code
#endif /* TRACE/!TRACE */
/*
* Use Check_CTYPE_Field() to simplify FIELDTYPE's that use only the ccheck()
* function.
*/
#if USE_WIDEC_SUPPORT
#define Check_CTYPE_Field(result, buffer, width, ccheck) \
while (*buffer && *buffer == ' ') \
buffer++; \
if (*buffer) \
{ \
bool blank = FALSE; \
int len; \
int n; \
wchar_t *list = _nc_Widen_String((char *)buffer, &len); \
if (list != 0) \
{ \
result = TRUE; \
for (n = 0; n < len; ++n) \
{ \
if (blank) \
{ \
if (list[n] != ' ') \
{ \
result = FALSE; \
break; \
} \
} \
else if (list[n] == ' ') \
{ \
blank = TRUE; \
result = (n + 1 >= width); \
} \
else if (!ccheck(list[n], NULL)) \
{ \
result = FALSE; \
break; \
} \
} \
free(list); \
} \
}
#else
#define Check_CTYPE_Field(result, buffer, width, ccheck) \
while (*buffer && *buffer == ' ') \
buffer++; \
if (*buffer) \
{ \
unsigned char *s = buffer; \
int l = -1; \
while (*buffer && ccheck(*buffer, NULL)) \
buffer++; \
l = (int)(buffer - s); \
while (*buffer && *buffer == ' ') \
buffer++; \
result = ((*buffer || (l < width)) ? FALSE : TRUE); \
}
#endif
/* *INDENT-ON*/
#endif /* FORM_PRIV_H */
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