/****************************************************************************
- * Copyright (c) 1998 Free Software Foundation, Inc. *
+ * Copyright 2018-2019-2020,2021 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 *
****************************************************************************/
/****************************************************************************
- * Author: Juergen Pfeifer <juergen.pfeifer@gmx.net> 1995,1997 *
+ * Author: Juergen Pfeifer, 1995,1997 *
****************************************************************************/
+/* $Id: form.h,v 0.32 2021/06/17 21:26:02 tom Exp $ */
+
#ifndef FORM_H
#define FORM_H
+/* *INDENT-OFF*/
#include <curses.h>
#include <eti.h>
extern "C" {
#endif
+#if defined(BUILDING_FORM)
+# define FORM_IMPEXP NCURSES_EXPORT_GENERAL_EXPORT
+#else
+# define FORM_IMPEXP NCURSES_EXPORT_GENERAL_IMPORT
+#endif
+
+#define FORM_WRAPPED_VAR(type,name) extern FORM_IMPEXP type NCURSES_PUBLIC_VAR(name)(void)
+
+#define FORM_EXPORT(type) FORM_IMPEXP type NCURSES_API
+#define FORM_EXPORT_VAR(type) FORM_IMPEXP type
+
+#ifndef FORM_PRIV_H
+typedef void *FIELD_CELL;
+#endif
+
+#ifndef NCURSES_FIELD_INTERNALS
+#define NCURSES_FIELD_INTERNALS /* nothing */
+#endif
+
typedef int Form_Options;
typedef int Field_Options;
* _PAGE *
**********/
-typedef struct {
- short pmin; /* index of first field on page */
- short pmax; /* index of last field on page */
- short smin; /* index of top leftmost field on page */
- short smax; /* index of bottom rightmost field on page */
-} _PAGE;
+typedef struct pagenode
+#if !NCURSES_OPAQUE_FORM
+{
+ short pmin; /* index of first field on page */
+ short pmax; /* index of last field on page */
+ short smin; /* index of top leftmost field on page */
+ short smax; /* index of bottom rightmost field on page */
+}
+#endif /* !NCURSES_OPAQUE_FORM */
+_PAGE;
/**********
* FIELD *
**********/
-typedef struct fieldnode {
- unsigned short status; /* flags */
- short rows; /* size in rows */
- short cols; /* size in cols */
- short frow; /* first row */
- short fcol; /* first col */
- int drows; /* dynamic rows */
- int dcols; /* dynamic cols */
- int maxgrow; /* maximum field growth */
- int nrow; /* offscreen rows */
- short nbuf; /* additional buffers */
- short just; /* justification */
- short page; /* page on form */
- short index; /* into form -> field */
- int pad; /* pad character */
- chtype fore; /* foreground attribute */
- chtype back; /* background attribute */
- Field_Options opts; /* options */
- struct fieldnode * snext; /* sorted order pointer */
- struct fieldnode * sprev; /* sorted order pointer */
- struct fieldnode * link; /* linked field chain */
- struct formnode * form; /* containing form */
- struct typenode * type; /* field type */
- void * arg; /* argument for type */
- char * buf; /* field buffers */
- void * usrptr; /* user pointer */
-} FIELD;
+typedef struct fieldnode
+#if 1 /* not yet: !NCURSES_OPAQUE_FORM */
+{
+ unsigned short status; /* flags */
+ short rows; /* size in rows */
+ short cols; /* size in cols */
+ short frow; /* first row */
+ short fcol; /* first col */
+ int drows; /* dynamic rows */
+ int dcols; /* dynamic cols */
+ int maxgrow; /* maximum field growth */
+ int nrow; /* off-screen rows */
+ short nbuf; /* additional buffers */
+ short just; /* justification */
+ short page; /* page on form */
+ short index; /* into form -> field */
+ int pad; /* pad character */
+ chtype fore; /* foreground attribute */
+ chtype back; /* background attribute */
+ Field_Options opts; /* options */
+ struct fieldnode * snext; /* sorted order pointer */
+ struct fieldnode * sprev; /* sorted order pointer */
+ struct fieldnode * link; /* linked field chain */
+ struct formnode * form; /* containing form */
+ struct typenode * type; /* field type */
+ void * arg; /* argument for type */
+ FIELD_CELL * buf; /* field buffers */
+ void * usrptr; /* user pointer */
+ /*
+ * The wide-character configuration requires extra information. Because
+ * there are existing applications that manipulate the members of FIELD
+ * directly, we cannot make the struct opaque, except by changing the ABI.
+ * Offsets of members up to this point are the same in the narrow- and
+ * wide-character configuration. But note that the type of buf depends on
+ * the configuration, and is made opaque for that reason.
+ */
+ NCURSES_FIELD_INTERNALS
+}
+#endif /* NCURSES_OPAQUE_FORM */
+FIELD;
- /**************
- * FIELDTYPE *
- **************/
-
-typedef struct typenode {
- unsigned short status; /* flags */
- long ref; /* reference count */
- struct typenode * left; /* ptr to operand for | */
- struct typenode * right; /* ptr to operand for | */
- void* (*makearg)(va_list *); /* make fieldtype arg */
- void* (*copyarg)(const void *); /* copy fieldtype arg */
- void (*freearg)(void *); /* free fieldtype arg */
+ /*********
+ * FORM *
+ *********/
- bool (*fcheck)(FIELD *,const void *); /* field validation */
- bool (*ccheck)(int,const void *); /* character validation */
+typedef struct formnode
+#if 1 /* not yet: !NCURSES_OPAQUE_FORM */
+{
+ unsigned short status; /* flags */
+ short rows; /* size in rows */
+ short cols; /* size in cols */
+ int currow; /* current row in field window */
+ int curcol; /* current col in field window */
+ int toprow; /* in scrollable field window */
+ int begincol; /* in horiz. scrollable field */
+ short maxfield; /* number of fields */
+ short maxpage; /* number of pages */
+ short curpage; /* index into page */
+ Form_Options opts; /* options */
+ WINDOW * win; /* window */
+ WINDOW * sub; /* subwindow */
+ WINDOW * w; /* window for current field */
+ FIELD ** field; /* field [maxfield] */
+ FIELD * current; /* current field */
+ _PAGE * page; /* page [maxpage] */
+ void * usrptr; /* user pointer */
+
+ void (*forminit)(struct formnode *);
+ void (*formterm)(struct formnode *);
+ void (*fieldinit)(struct formnode *);
+ void (*fieldterm)(struct formnode *);
+
+}
+#endif /* !NCURSES_OPAQUE_FORM */
+FORM;
- bool (*next)(FIELD *,const void *); /* enumerate next value */
- bool (*prev)(FIELD *,const void *); /* enumerate prev value */
-} FIELDTYPE;
+ /**************
+ * FIELDTYPE *
+ **************/
- /*********
- * FORM *
- *********/
+typedef struct typenode
+#if !NCURSES_OPAQUE_FORM
+{
+ unsigned short status; /* flags */
+ long ref; /* reference count */
+ struct typenode * left; /* ptr to operand for | */
+ struct typenode * right; /* ptr to operand for | */
+
+ void* (*makearg)(va_list *); /* make fieldtype arg */
+ void* (*copyarg)(const void *); /* copy fieldtype arg */
+ void (*freearg)(void *); /* free fieldtype arg */
+
+#if NCURSES_INTEROP_FUNCS
+ union {
+ bool (*ofcheck)(FIELD *,const void *); /* field validation */
+ bool (*gfcheck)(FORM*,FIELD *,const void*); /* generic field validation */
+ } fieldcheck;
+ union {
+ bool (*occheck)(int,const void *); /* character validation */
+ bool (*gccheck)(int,FORM*,
+ FIELD*,const void*); /* generic char validation */
+ } charcheck;
+ union {
+ bool (*onext)(FIELD *,const void *); /* enumerate next value */
+ bool (*gnext)(FORM*,FIELD*,const void*); /* generic enumerate next */
+ } enum_next;
+ union {
+ bool (*oprev)(FIELD *,const void *); /* enumerate prev value */
+ bool (*gprev)(FORM*,FIELD*,const void*); /* generic enumerate prev */
+ } enum_prev;
+ void* (*genericarg)(void*); /* Alternate Arg method */
+#else
+ bool (*fcheck)(FIELD *,const void *); /* field validation */
+ bool (*ccheck)(int,const void *); /* character validation */
-typedef struct formnode {
- unsigned short status; /* flags */
- short rows; /* size in rows */
- short cols; /* size in cols */
- int currow; /* current row in field window*/
- int curcol; /* current col in field window*/
- int toprow; /* in scrollable field window */
- int begincol; /* in horiz. scrollable field */
- short maxfield; /* number of fields */
- short maxpage; /* number of pages */
- short curpage; /* index into page */
- Form_Options opts; /* options */
- WINDOW * win; /* window */
- WINDOW * sub; /* subwindow */
- WINDOW * w; /* window for current field */
- FIELD ** field; /* field [maxfield] */
- FIELD * current; /* current field */
- _PAGE * page; /* page [maxpage] */
- void * usrptr; /* user pointer */
-
- void (*forminit)(struct formnode *);
- void (*formterm)(struct formnode *);
- void (*fieldinit)(struct formnode *);
- void (*fieldterm)(struct formnode *);
-
-} FORM;
+ bool (*next)(FIELD *,const void *); /* enumerate next value */
+ bool (*prev)(FIELD *,const void *); /* enumerate prev value */
+#endif
+}
+#endif /* !NCURSES_OPAQUE_FORM */
+FIELDTYPE;
typedef void (*Form_Hook)(FORM *);
#define JUSTIFY_RIGHT (3)
/* field options */
-#define O_VISIBLE (0x0001)
-#define O_ACTIVE (0x0002)
-#define O_PUBLIC (0x0004)
-#define O_EDIT (0x0008)
-#define O_WRAP (0x0010)
-#define O_BLANK (0x0020)
-#define O_AUTOSKIP (0x0040)
-#define O_NULLOK (0x0080)
-#define O_PASSOK (0x0100)
-#define O_STATIC (0x0200)
+#define O_VISIBLE (0x0001U)
+#define O_ACTIVE (0x0002U)
+#define O_PUBLIC (0x0004U)
+#define O_EDIT (0x0008U)
+#define O_WRAP (0x0010U)
+#define O_BLANK (0x0020U)
+#define O_AUTOSKIP (0x0040U)
+#define O_NULLOK (0x0080U)
+#define O_PASSOK (0x0100U)
+#define O_STATIC (0x0200U)
+#define O_DYNAMIC_JUSTIFY (0x0400U) /* ncurses extension */
+#define O_NO_LEFT_STRIP (0x0800U) /* ncurses extension */
+#define O_EDGE_INSERT_STAY (0x1000U) /* ncurses extension */
+#define O_INPUT_LIMIT (0x2000U) /* ncurses extension */
/* form options */
-#define O_NL_OVERLOAD (0x0001)
-#define O_BS_OVERLOAD (0x0002)
+#define O_NL_OVERLOAD (0x0001U)
+#define O_BS_OVERLOAD (0x0002U)
/* form driver commands */
#define REQ_NEXT_PAGE (KEY_MAX + 1) /* move to next page */
#define REQ_DEL_CHAR (KEY_MAX + 34) /* delete char at cursor */
#define REQ_DEL_PREV (KEY_MAX + 35) /* delete char before cursor */
#define REQ_DEL_LINE (KEY_MAX + 36) /* delete line at cursor */
-#define REQ_DEL_WORD (KEY_MAX + 37) /* delete line at cursor */
+#define REQ_DEL_WORD (KEY_MAX + 37) /* delete word at cursor */
#define REQ_CLR_EOL (KEY_MAX + 38) /* clear to end of line */
#define REQ_CLR_EOF (KEY_MAX + 39) /* clear to end of field */
#define REQ_CLR_FIELD (KEY_MAX + 40) /* clear entire field */
#define REQ_SCR_BLINE (KEY_MAX + 44) /* scroll field backward a line */
#define REQ_SCR_FPAGE (KEY_MAX + 45) /* scroll field forward a page */
#define REQ_SCR_BPAGE (KEY_MAX + 46) /* scroll field backward a page */
-#define REQ_SCR_FHPAGE (KEY_MAX + 47) /* scroll field forward half page */
-#define REQ_SCR_BHPAGE (KEY_MAX + 48) /* scroll field backward half page */
-#define REQ_SCR_FCHAR (KEY_MAX + 49) /* horizontal scroll char */
-#define REQ_SCR_BCHAR (KEY_MAX + 50) /* horizontal scroll char */
-#define REQ_SCR_HFLINE (KEY_MAX + 51) /* horizontal scroll line */
-#define REQ_SCR_HBLINE (KEY_MAX + 52) /* horizontal scroll line */
-#define REQ_SCR_HFHALF (KEY_MAX + 53) /* horizontal scroll half line */
-#define REQ_SCR_HBHALF (KEY_MAX + 54) /* horizontal scroll half line */
+#define REQ_SCR_FHPAGE (KEY_MAX + 47) /* scroll field forward half page */
+#define REQ_SCR_BHPAGE (KEY_MAX + 48) /* scroll field backward half page */
+#define REQ_SCR_FCHAR (KEY_MAX + 49) /* horizontal scroll char */
+#define REQ_SCR_BCHAR (KEY_MAX + 50) /* horizontal scroll char */
+#define REQ_SCR_HFLINE (KEY_MAX + 51) /* horizontal scroll line */
+#define REQ_SCR_HBLINE (KEY_MAX + 52) /* horizontal scroll line */
+#define REQ_SCR_HFHALF (KEY_MAX + 53) /* horizontal scroll half line */
+#define REQ_SCR_HBHALF (KEY_MAX + 54) /* horizontal scroll half line */
#define REQ_VALIDATION (KEY_MAX + 55) /* validate field */
#define REQ_NEXT_CHOICE (KEY_MAX + 56) /* display next field choice */
/*************************
* standard field types *
*************************/
-extern FIELDTYPE *TYPE_ALPHA,
- *TYPE_ALNUM,
- *TYPE_ENUM,
- *TYPE_INTEGER,
- *TYPE_NUMERIC,
- *TYPE_REGEXP;
-
- /************************************
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC;
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP;
+
+ /************************************
* built-in additional field types *
- * They are not defined in SVr4 *
+ * They are not defined in SVr4 *
************************************/
-extern FIELDTYPE *TYPE_IPV4; /* Internet IP Version 4 address */
-
- /***********************
- * Default objects *
- ***********************/
-extern FORM *_nc_Default_Form;
-extern FIELD *_nc_Default_Field;
-
+extern FORM_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4; /* Internet IP Version 4 address */
/***********************
* FIELDTYPE routines *
***********************/
-extern FIELDTYPE
- *new_fieldtype(
+extern FORM_EXPORT(FIELDTYPE *) new_fieldtype (
bool (* const field_check)(FIELD *,const void *),
- bool (* const char_check)(int,const void *)),
- *link_fieldtype(FIELDTYPE *,FIELDTYPE *);
+ bool (* const char_check)(int,const void *));
+extern FORM_EXPORT(FIELDTYPE *) link_fieldtype(
+ FIELDTYPE *, FIELDTYPE *);
-extern int free_fieldtype(FIELDTYPE *),
- set_fieldtype_arg(FIELDTYPE *,
+extern FORM_EXPORT(int) free_fieldtype (FIELDTYPE *);
+extern FORM_EXPORT(int) set_fieldtype_arg (FIELDTYPE *,
void * (* const make_arg)(va_list *),
void * (* const copy_arg)(const void *),
- void (* const free_arg)(void *)),
- set_fieldtype_choice (FIELDTYPE *,
+ void (* const free_arg)(void *));
+extern FORM_EXPORT(int) set_fieldtype_choice (FIELDTYPE *,
bool (* const next_choice)(FIELD *,const void *),
bool (* const prev_choice)(FIELD *,const void *));
/*******************
* FIELD routines *
*******************/
-extern FIELD *new_field(int,int,int,int,int,int),
- *dup_field(FIELD *,int,int),
- *link_field(FIELD *,int,int);
-
-extern int free_field(FIELD *),
- field_info(const FIELD *,int *,int *,int *,int *,int *,int *),
- dynamic_field_info(const FIELD *,int *,int *,int *),
- set_max_field( FIELD *,int),
- move_field(FIELD *,int,int),
- set_field_type(FIELD *,FIELDTYPE *,...),
- set_new_page(FIELD *,bool),
- set_field_just(FIELD *,int),
- field_just(const FIELD *),
- set_field_fore(FIELD *,chtype),
- set_field_back(FIELD *,chtype),
- set_field_pad(FIELD *,int),
- field_pad(const FIELD *),
- set_field_buffer(FIELD *,int,const char *),
- set_field_status(FIELD *,bool),
- set_field_userptr(FIELD *, void *),
- set_field_opts(FIELD *,Field_Options),
- field_opts_on(FIELD *,Field_Options),
- field_opts_off(FIELD *,Field_Options);
-
-extern chtype field_fore(const FIELD *),
- field_back(const FIELD *);
-
-extern bool new_page(const FIELD *),
- field_status(const FIELD *);
-
-extern void *field_arg(const FIELD *);
-
-extern void *field_userptr(const FIELD *);
-
-extern FIELDTYPE
- *field_type(const FIELD *);
-
-extern char* field_buffer(const FIELD *,int);
-
-extern Field_Options
- field_opts(const FIELD *);
+extern FORM_EXPORT(FIELD *) new_field (int,int,int,int,int,int);
+extern FORM_EXPORT(FIELD *) dup_field (FIELD *,int,int);
+extern FORM_EXPORT(FIELD *) link_field (FIELD *,int,int);
+
+extern FORM_EXPORT(int) free_field (FIELD *);
+extern FORM_EXPORT(int) field_info (const FIELD *,int *,int *,int *,int *,int *,int *);
+extern FORM_EXPORT(int) dynamic_field_info (const FIELD *,int *,int *,int *);
+extern FORM_EXPORT(int) set_max_field ( FIELD *,int);
+extern FORM_EXPORT(int) move_field (FIELD *,int,int);
+extern FORM_EXPORT(int) set_field_type (FIELD *,FIELDTYPE *,...);
+extern FORM_EXPORT(int) set_new_page (FIELD *,bool);
+extern FORM_EXPORT(int) set_field_just (FIELD *,int);
+extern FORM_EXPORT(int) field_just (const FIELD *);
+extern FORM_EXPORT(int) set_field_fore (FIELD *,chtype);
+extern FORM_EXPORT(int) set_field_back (FIELD *,chtype);
+extern FORM_EXPORT(int) set_field_pad (FIELD *,int);
+extern FORM_EXPORT(int) field_pad (const FIELD *);
+extern FORM_EXPORT(int) set_field_buffer (FIELD *,int,const char *);
+extern FORM_EXPORT(int) set_field_status (FIELD *,bool);
+extern FORM_EXPORT(int) set_field_userptr (FIELD *, void *);
+extern FORM_EXPORT(int) set_field_opts (FIELD *,Field_Options);
+extern FORM_EXPORT(int) field_opts_on (FIELD *,Field_Options);
+extern FORM_EXPORT(int) field_opts_off (FIELD *,Field_Options);
+
+extern FORM_EXPORT(chtype) field_fore (const FIELD *);
+extern FORM_EXPORT(chtype) field_back (const FIELD *);
+
+extern FORM_EXPORT(bool) new_page (const FIELD *);
+extern FORM_EXPORT(bool) field_status (const FIELD *);
+
+extern FORM_EXPORT(void *) field_arg (const FIELD *);
+
+extern FORM_EXPORT(void *) field_userptr (const FIELD *);
+
+extern FORM_EXPORT(FIELDTYPE *) field_type (const FIELD *);
+
+extern FORM_EXPORT(char *) field_buffer (const FIELD *,int);
+
+extern FORM_EXPORT(Field_Options) field_opts (const FIELD *);
/******************
* FORM routines *
******************/
-extern FORM *new_form(FIELD **);
-
-extern FIELD **form_fields(const FORM *),
- *current_field(const FORM *);
-
-extern WINDOW *form_win(const FORM *),
- *form_sub(const FORM *);
-
-extern Form_Hook
- form_init(const FORM *),
- form_term(const FORM *),
- field_init(const FORM *),
- field_term(const FORM *);
-
-extern int free_form(FORM *),
- set_form_fields(FORM *,FIELD **),
- field_count(const FORM *),
- set_form_win(FORM *,WINDOW *),
- set_form_sub(FORM *,WINDOW *),
- set_current_field(FORM *,FIELD *),
- field_index(const FIELD *),
- set_form_page(FORM *,int),
- form_page(const FORM *),
- scale_form(const FORM *,int *,int *),
- set_form_init(FORM *,Form_Hook),
- set_form_term(FORM *,Form_Hook),
- set_field_init(FORM *,Form_Hook),
- set_field_term(FORM *,Form_Hook),
- post_form(FORM *),
- unpost_form(FORM *),
- pos_form_cursor(FORM *),
- form_driver(FORM *,int),
- set_form_userptr(FORM *,void *),
- set_form_opts(FORM *,Form_Options),
- form_opts_on(FORM *,Form_Options),
- form_opts_off(FORM *,Form_Options),
- form_request_by_name(const char *);
-
-extern const char
- *form_request_name(int);
-
-extern void *form_userptr(const FORM *);
-
-extern Form_Options
- form_opts(const FORM *);
-
-extern bool data_ahead(const FORM *),
- data_behind(const FORM *);
+
+extern FORM_EXPORT(FORM *) new_form (FIELD **);
+
+extern FORM_EXPORT(FIELD **) form_fields (const FORM *);
+extern FORM_EXPORT(FIELD *) current_field (const FORM *);
+
+extern FORM_EXPORT(WINDOW *) form_win (const FORM *);
+extern FORM_EXPORT(WINDOW *) form_sub (const FORM *);
+
+extern FORM_EXPORT(Form_Hook) form_init (const FORM *);
+extern FORM_EXPORT(Form_Hook) form_term (const FORM *);
+extern FORM_EXPORT(Form_Hook) field_init (const FORM *);
+extern FORM_EXPORT(Form_Hook) field_term (const FORM *);
+
+extern FORM_EXPORT(int) free_form (FORM *);
+extern FORM_EXPORT(int) set_form_fields (FORM *,FIELD **);
+extern FORM_EXPORT(int) field_count (const FORM *);
+extern FORM_EXPORT(int) set_form_win (FORM *,WINDOW *);
+extern FORM_EXPORT(int) set_form_sub (FORM *,WINDOW *);
+extern FORM_EXPORT(int) set_current_field (FORM *,FIELD *);
+extern FORM_EXPORT(int) unfocus_current_field (FORM *);
+extern FORM_EXPORT(int) field_index (const FIELD *);
+extern FORM_EXPORT(int) set_form_page (FORM *,int);
+extern FORM_EXPORT(int) form_page (const FORM *);
+extern FORM_EXPORT(int) scale_form (const FORM *,int *,int *);
+extern FORM_EXPORT(int) set_form_init (FORM *,Form_Hook);
+extern FORM_EXPORT(int) set_form_term (FORM *,Form_Hook);
+extern FORM_EXPORT(int) set_field_init (FORM *,Form_Hook);
+extern FORM_EXPORT(int) set_field_term (FORM *,Form_Hook);
+extern FORM_EXPORT(int) post_form (FORM *);
+extern FORM_EXPORT(int) unpost_form (FORM *);
+extern FORM_EXPORT(int) pos_form_cursor (FORM *);
+extern FORM_EXPORT(int) form_driver (FORM *,int);
+# if NCURSES_WIDECHAR
+extern FORM_EXPORT(int) form_driver_w (FORM *,int,wchar_t);
+# endif
+extern FORM_EXPORT(int) set_form_userptr (FORM *,void *);
+extern FORM_EXPORT(int) set_form_opts (FORM *,Form_Options);
+extern FORM_EXPORT(int) form_opts_on (FORM *,Form_Options);
+extern FORM_EXPORT(int) form_opts_off (FORM *,Form_Options);
+extern FORM_EXPORT(int) form_request_by_name (const char *);
+
+extern FORM_EXPORT(const char *) form_request_name (int);
+
+extern FORM_EXPORT(void *) form_userptr (const FORM *);
+
+extern FORM_EXPORT(Form_Options) form_opts (const FORM *);
+
+extern FORM_EXPORT(bool) data_ahead (const FORM *);
+extern FORM_EXPORT(bool) data_behind (const FORM *);
+
+#if NCURSES_SP_FUNCS
+extern FORM_EXPORT(FORM *) NCURSES_SP_NAME(new_form) (SCREEN*, FIELD **);
+#endif
#ifdef __cplusplus
}
#endif
+/* *INDENT-ON*/
-#endif /* FORM_H */
+#endif /* FORM_H */