| 1 | /****************************************************************************
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| 2 | * Copyright (c) 1998-2003,2004 Free Software Foundation, Inc. *
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| 3 | * *
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| 4 | * Permission is hereby granted, free of charge, to any person obtaining a *
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| 5 | * copy of this software and associated documentation files (the *
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| 6 | * "Software"), to deal in the Software without restriction, including *
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| 7 | * without limitation the rights to use, copy, modify, merge, publish, *
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| 8 | * distribute, distribute with modifications, sublicense, and/or sell *
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| 9 | * copies of the Software, and to permit persons to whom the Software is *
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| 10 | * furnished to do so, subject to the following conditions: *
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| 11 | * *
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| 12 | * The above copyright notice and this permission notice shall be included *
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| 13 | * in all copies or substantial portions of the Software. *
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| 14 | * *
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| 15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS *
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| 16 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF *
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| 17 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. *
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| 18 | * IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, *
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| 19 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR *
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| 20 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR *
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| 21 | * THE USE OR OTHER DEALINGS IN THE SOFTWARE. *
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| 22 | * *
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| 23 | * Except as contained in this notice, the name(s) of the above copyright *
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| 24 | * holders shall not be used in advertising or otherwise to promote the *
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| 25 | * sale, use or other dealings in this Software without prior written *
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| 26 | * authorization. *
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| 27 | ****************************************************************************/
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| 28 |
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| 29 | /****************************************************************************
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| 30 | * Author: Juergen Pfeifer, 1995,1997 *
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| 31 | ****************************************************************************/
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| 32 |
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| 33 | /* $Id: form.h,v 0.20 2004/12/04 22:22:10 tom Exp $ */
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| 34 |
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| 35 | #ifndef FORM_H
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| 36 | #define FORM_H
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| 37 |
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| 38 | #include <curses.h>
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| 39 | #include <eti.h>
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| 40 |
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| 41 | #ifdef __cplusplus
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| 42 | extern "C" {
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| 43 | #endif
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| 44 |
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| 45 | #ifndef FORM_PRIV_H
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| 46 | typedef void *FIELD_CELL;
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| 47 | #endif
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| 48 |
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| 49 | #ifndef NCURSES_FIELD_INTERNALS
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| 50 | #define NCURSES_FIELD_INTERNALS /* nothing */
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| 51 | #endif
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| 52 |
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| 53 | typedef int Form_Options;
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| 54 | typedef int Field_Options;
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| 55 |
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| 56 | /**********
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| 57 | * _PAGE *
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| 58 | **********/
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| 59 |
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| 60 | typedef struct {
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| 61 | short pmin; /* index of first field on page */
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| 62 | short pmax; /* index of last field on page */
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| 63 | short smin; /* index of top leftmost field on page */
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| 64 | short smax; /* index of bottom rightmost field on page */
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| 65 | } _PAGE;
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| 66 |
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| 67 | /**********
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| 68 | * FIELD *
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| 69 | **********/
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| 70 |
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| 71 | typedef struct fieldnode {
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| 72 | unsigned short status; /* flags */
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| 73 | short rows; /* size in rows */
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| 74 | short cols; /* size in cols */
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| 75 | short frow; /* first row */
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| 76 | short fcol; /* first col */
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| 77 | int drows; /* dynamic rows */
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| 78 | int dcols; /* dynamic cols */
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| 79 | int maxgrow; /* maximum field growth */
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| 80 | int nrow; /* off-screen rows */
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| 81 | short nbuf; /* additional buffers */
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| 82 | short just; /* justification */
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| 83 | short page; /* page on form */
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| 84 | short index; /* into form -> field */
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| 85 | int pad; /* pad character */
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| 86 | chtype fore; /* foreground attribute */
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| 87 | chtype back; /* background attribute */
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| 88 | Field_Options opts; /* options */
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| 89 | struct fieldnode * snext; /* sorted order pointer */
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| 90 | struct fieldnode * sprev; /* sorted order pointer */
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| 91 | struct fieldnode * link; /* linked field chain */
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| 92 | struct formnode * form; /* containing form */
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| 93 | struct typenode * type; /* field type */
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| 94 | void * arg; /* argument for type */
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| 95 | FIELD_CELL * buf; /* field buffers */
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| 96 | void * usrptr; /* user pointer */
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| 97 | /*
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| 98 | * The wide-character configuration requires extra information. Because
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| 99 | * there are existing applications that manipulate the members of FIELD
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| 100 | * directly, we cannot make the struct opaque. Offsets of members up to
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| 101 | * this point are the same in the narrow- and wide-character configuration.
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| 102 | * But note that the type of buf depends on the configuration, and is made
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| 103 | * opaque for that reason.
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| 104 | */
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| 105 | NCURSES_FIELD_INTERNALS
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| 106 | } FIELD;
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| 107 |
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| 108 | /**************
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| 109 | * FIELDTYPE *
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| 110 | **************/
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| 111 |
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| 112 | typedef struct typenode {
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| 113 | unsigned short status; /* flags */
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| 114 | long ref; /* reference count */
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| 115 | struct typenode * left; /* ptr to operand for | */
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| 116 | struct typenode * right; /* ptr to operand for | */
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| 117 |
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| 118 | void* (*makearg)(va_list *); /* make fieldtype arg */
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| 119 | void* (*copyarg)(const void *); /* copy fieldtype arg */
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| 120 | void (*freearg)(void *); /* free fieldtype arg */
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| 121 |
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| 122 | bool (*fcheck)(FIELD *,const void *); /* field validation */
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| 123 | bool (*ccheck)(int,const void *); /* character validation */
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| 124 |
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| 125 | bool (*next)(FIELD *,const void *); /* enumerate next value */
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| 126 | bool (*prev)(FIELD *,const void *); /* enumerate prev value */
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| 127 |
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| 128 | } FIELDTYPE;
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| 129 |
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| 130 | /*********
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| 131 | * FORM *
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| 132 | *********/
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| 133 |
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| 134 | typedef struct formnode {
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| 135 | unsigned short status; /* flags */
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| 136 | short rows; /* size in rows */
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| 137 | short cols; /* size in cols */
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| 138 | int currow; /* current row in field window */
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| 139 | int curcol; /* current col in field window */
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| 140 | int toprow; /* in scrollable field window */
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| 141 | int begincol; /* in horiz. scrollable field */
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| 142 | short maxfield; /* number of fields */
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| 143 | short maxpage; /* number of pages */
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| 144 | short curpage; /* index into page */
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| 145 | Form_Options opts; /* options */
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| 146 | WINDOW * win; /* window */
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| 147 | WINDOW * sub; /* subwindow */
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| 148 | WINDOW * w; /* window for current field */
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| 149 | FIELD ** field; /* field [maxfield] */
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| 150 | FIELD * current; /* current field */
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| 151 | _PAGE * page; /* page [maxpage] */
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| 152 | void * usrptr; /* user pointer */
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| 153 |
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| 154 | void (*forminit)(struct formnode *);
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| 155 | void (*formterm)(struct formnode *);
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| 156 | void (*fieldinit)(struct formnode *);
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| 157 | void (*fieldterm)(struct formnode *);
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| 158 |
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| 159 | } FORM;
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| 160 |
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| 161 | typedef void (*Form_Hook)(FORM *);
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| 162 |
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| 163 | /***************************
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| 164 | * miscellaneous #defines *
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| 165 | ***************************/
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| 166 |
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| 167 | /* field justification */
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| 168 | #define NO_JUSTIFICATION (0)
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| 169 | #define JUSTIFY_LEFT (1)
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| 170 | #define JUSTIFY_CENTER (2)
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| 171 | #define JUSTIFY_RIGHT (3)
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| 172 |
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| 173 | /* field options */
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| 174 | #define O_VISIBLE (0x0001U)
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| 175 | #define O_ACTIVE (0x0002U)
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| 176 | #define O_PUBLIC (0x0004U)
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| 177 | #define O_EDIT (0x0008U)
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| 178 | #define O_WRAP (0x0010U)
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| 179 | #define O_BLANK (0x0020U)
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| 180 | #define O_AUTOSKIP (0x0040U)
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| 181 | #define O_NULLOK (0x0080U)
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| 182 | #define O_PASSOK (0x0100U)
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| 183 | #define O_STATIC (0x0200U)
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| 184 |
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| 185 | /* form options */
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| 186 | #define O_NL_OVERLOAD (0x0001U)
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| 187 | #define O_BS_OVERLOAD (0x0002U)
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| 188 |
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| 189 | /* form driver commands */
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| 190 | #define REQ_NEXT_PAGE (KEY_MAX + 1) /* move to next page */
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| 191 | #define REQ_PREV_PAGE (KEY_MAX + 2) /* move to previous page */
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| 192 | #define REQ_FIRST_PAGE (KEY_MAX + 3) /* move to first page */
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| 193 | #define REQ_LAST_PAGE (KEY_MAX + 4) /* move to last page */
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| 194 |
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| 195 | #define REQ_NEXT_FIELD (KEY_MAX + 5) /* move to next field */
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| 196 | #define REQ_PREV_FIELD (KEY_MAX + 6) /* move to previous field */
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| 197 | #define REQ_FIRST_FIELD (KEY_MAX + 7) /* move to first field */
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| 198 | #define REQ_LAST_FIELD (KEY_MAX + 8) /* move to last field */
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| 199 | #define REQ_SNEXT_FIELD (KEY_MAX + 9) /* move to sorted next field */
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| 200 | #define REQ_SPREV_FIELD (KEY_MAX + 10) /* move to sorted prev field */
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| 201 | #define REQ_SFIRST_FIELD (KEY_MAX + 11) /* move to sorted first field */
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| 202 | #define REQ_SLAST_FIELD (KEY_MAX + 12) /* move to sorted last field */
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| 203 | #define REQ_LEFT_FIELD (KEY_MAX + 13) /* move to left to field */
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| 204 | #define REQ_RIGHT_FIELD (KEY_MAX + 14) /* move to right to field */
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| 205 | #define REQ_UP_FIELD (KEY_MAX + 15) /* move to up to field */
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| 206 | #define REQ_DOWN_FIELD (KEY_MAX + 16) /* move to down to field */
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| 207 |
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| 208 | #define REQ_NEXT_CHAR (KEY_MAX + 17) /* move to next char in field */
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| 209 | #define REQ_PREV_CHAR (KEY_MAX + 18) /* move to prev char in field */
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| 210 | #define REQ_NEXT_LINE (KEY_MAX + 19) /* move to next line in field */
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| 211 | #define REQ_PREV_LINE (KEY_MAX + 20) /* move to prev line in field */
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| 212 | #define REQ_NEXT_WORD (KEY_MAX + 21) /* move to next word in field */
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| 213 | #define REQ_PREV_WORD (KEY_MAX + 22) /* move to prev word in field */
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| 214 | #define REQ_BEG_FIELD (KEY_MAX + 23) /* move to first char in field */
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| 215 | #define REQ_END_FIELD (KEY_MAX + 24) /* move after last char in fld */
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| 216 | #define REQ_BEG_LINE (KEY_MAX + 25) /* move to beginning of line */
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| 217 | #define REQ_END_LINE (KEY_MAX + 26) /* move after last char in line */
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| 218 | #define REQ_LEFT_CHAR (KEY_MAX + 27) /* move left in field */
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| 219 | #define REQ_RIGHT_CHAR (KEY_MAX + 28) /* move right in field */
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| 220 | #define REQ_UP_CHAR (KEY_MAX + 29) /* move up in field */
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| 221 | #define REQ_DOWN_CHAR (KEY_MAX + 30) /* move down in field */
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| 222 |
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| 223 | #define REQ_NEW_LINE (KEY_MAX + 31) /* insert/overlay new line */
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| 224 | #define REQ_INS_CHAR (KEY_MAX + 32) /* insert blank char at cursor */
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| 225 | #define REQ_INS_LINE (KEY_MAX + 33) /* insert blank line at cursor */
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| 226 | #define REQ_DEL_CHAR (KEY_MAX + 34) /* delete char at cursor */
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| 227 | #define REQ_DEL_PREV (KEY_MAX + 35) /* delete char before cursor */
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| 228 | #define REQ_DEL_LINE (KEY_MAX + 36) /* delete line at cursor */
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| 229 | #define REQ_DEL_WORD (KEY_MAX + 37) /* delete word at cursor */
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| 230 | #define REQ_CLR_EOL (KEY_MAX + 38) /* clear to end of line */
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| 231 | #define REQ_CLR_EOF (KEY_MAX + 39) /* clear to end of field */
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| 232 | #define REQ_CLR_FIELD (KEY_MAX + 40) /* clear entire field */
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| 233 | #define REQ_OVL_MODE (KEY_MAX + 41) /* begin overlay mode */
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| 234 | #define REQ_INS_MODE (KEY_MAX + 42) /* begin insert mode */
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| 235 | #define REQ_SCR_FLINE (KEY_MAX + 43) /* scroll field forward a line */
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| 236 | #define REQ_SCR_BLINE (KEY_MAX + 44) /* scroll field backward a line */
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| 237 | #define REQ_SCR_FPAGE (KEY_MAX + 45) /* scroll field forward a page */
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| 238 | #define REQ_SCR_BPAGE (KEY_MAX + 46) /* scroll field backward a page */
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| 239 | #define REQ_SCR_FHPAGE (KEY_MAX + 47) /* scroll field forward half page */
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| 240 | #define REQ_SCR_BHPAGE (KEY_MAX + 48) /* scroll field backward half page */
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| 241 | #define REQ_SCR_FCHAR (KEY_MAX + 49) /* horizontal scroll char */
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| 242 | #define REQ_SCR_BCHAR (KEY_MAX + 50) /* horizontal scroll char */
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| 243 | #define REQ_SCR_HFLINE (KEY_MAX + 51) /* horizontal scroll line */
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| 244 | #define REQ_SCR_HBLINE (KEY_MAX + 52) /* horizontal scroll line */
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| 245 | #define REQ_SCR_HFHALF (KEY_MAX + 53) /* horizontal scroll half line */
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| 246 | #define REQ_SCR_HBHALF (KEY_MAX + 54) /* horizontal scroll half line */
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| 247 |
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| 248 | #define REQ_VALIDATION (KEY_MAX + 55) /* validate field */
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| 249 | #define REQ_NEXT_CHOICE (KEY_MAX + 56) /* display next field choice */
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| 250 | #define REQ_PREV_CHOICE (KEY_MAX + 57) /* display prev field choice */
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| 251 |
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| 252 | #define MIN_FORM_COMMAND (KEY_MAX + 1) /* used by form_driver */
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| 253 | #define MAX_FORM_COMMAND (KEY_MAX + 57) /* used by form_driver */
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| 254 |
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| 255 | #if defined(MAX_COMMAND)
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| 256 | # if (MAX_FORM_COMMAND > MAX_COMMAND)
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| 257 | # error Something is wrong -- MAX_FORM_COMMAND is greater than MAX_COMMAND
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| 258 | # elif (MAX_COMMAND != (KEY_MAX + 128))
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| 259 | # error Something is wrong -- MAX_COMMAND is already inconsistently defined.
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| 260 | # endif
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| 261 | #else
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| 262 | # define MAX_COMMAND (KEY_MAX + 128)
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| 263 | #endif
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| 264 |
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| 265 | /*************************
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| 266 | * standard field types *
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| 267 | *************************/
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| 268 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ALPHA;
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| 269 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ALNUM;
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| 270 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_ENUM;
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| 271 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_INTEGER;
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| 272 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_NUMERIC;
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| 273 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_REGEXP;
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| 274 |
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| 275 | /************************************
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| 276 | * built-in additional field types *
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| 277 | * They are not defined in SVr4 *
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| 278 | ************************************/
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| 279 | extern NCURSES_EXPORT_VAR(FIELDTYPE *) TYPE_IPV4; /* Internet IP Version 4 address */
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| 280 |
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| 281 | /***********************
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| 282 | * Default objects *
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| 283 | ***********************/
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| 284 | extern NCURSES_EXPORT_VAR(FORM *) _nc_Default_Form;
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| 285 | extern NCURSES_EXPORT_VAR(FIELD *) _nc_Default_Field;
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| 286 |
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| 287 |
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| 288 | /***********************
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| 289 | * FIELDTYPE routines *
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| 290 | ***********************/
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| 291 | extern NCURSES_EXPORT(FIELDTYPE *) new_fieldtype (
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| 292 | bool (* const field_check)(FIELD *,const void *),
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| 293 | bool (* const char_check)(int,const void *));
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| 294 | extern NCURSES_EXPORT(FIELDTYPE *) link_fieldtype(
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| 295 | FIELDTYPE *, FIELDTYPE *);
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| 296 |
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| 297 | extern NCURSES_EXPORT(int) free_fieldtype (FIELDTYPE *);
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| 298 | extern NCURSES_EXPORT(int) set_fieldtype_arg (FIELDTYPE *,
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| 299 | void * (* const make_arg)(va_list *),
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| 300 | void * (* const copy_arg)(const void *),
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| 301 | void (* const free_arg)(void *));
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| 302 | extern NCURSES_EXPORT(int) set_fieldtype_choice (FIELDTYPE *,
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| 303 | bool (* const next_choice)(FIELD *,const void *),
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| 304 | bool (* const prev_choice)(FIELD *,const void *));
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| 305 |
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| 306 | /*******************
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| 307 | * FIELD routines *
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| 308 | *******************/
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| 309 | extern NCURSES_EXPORT(FIELD *) new_field (int,int,int,int,int,int);
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| 310 | extern NCURSES_EXPORT(FIELD *) dup_field (FIELD *,int,int);
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| 311 | extern NCURSES_EXPORT(FIELD *) link_field (FIELD *,int,int);
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| 312 |
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| 313 | extern NCURSES_EXPORT(int) free_field (FIELD *);
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| 314 | extern NCURSES_EXPORT(int) field_info (const FIELD *,int *,int *,int *,int *,int *,int *);
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| 315 | extern NCURSES_EXPORT(int) dynamic_field_info (const FIELD *,int *,int *,int *);
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| 316 | extern NCURSES_EXPORT(int) set_max_field ( FIELD *,int);
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| 317 | extern NCURSES_EXPORT(int) move_field (FIELD *,int,int);
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| 318 | extern NCURSES_EXPORT(int) set_field_type (FIELD *,FIELDTYPE *,...);
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| 319 | extern NCURSES_EXPORT(int) set_new_page (FIELD *,bool);
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| 320 | extern NCURSES_EXPORT(int) set_field_just (FIELD *,int);
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| 321 | extern NCURSES_EXPORT(int) field_just (const FIELD *);
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| 322 | extern NCURSES_EXPORT(int) set_field_fore (FIELD *,chtype);
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| 323 | extern NCURSES_EXPORT(int) set_field_back (FIELD *,chtype);
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| 324 | extern NCURSES_EXPORT(int) set_field_pad (FIELD *,int);
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| 325 | extern NCURSES_EXPORT(int) field_pad (const FIELD *);
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| 326 | extern NCURSES_EXPORT(int) set_field_buffer (FIELD *,int,const char *);
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| 327 | extern NCURSES_EXPORT(int) set_field_status (FIELD *,bool);
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| 328 | extern NCURSES_EXPORT(int) set_field_userptr (FIELD *, void *);
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| 329 | extern NCURSES_EXPORT(int) set_field_opts (FIELD *,Field_Options);
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| 330 | extern NCURSES_EXPORT(int) field_opts_on (FIELD *,Field_Options);
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| 331 | extern NCURSES_EXPORT(int) field_opts_off (FIELD *,Field_Options);
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| 332 |
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| 333 | extern NCURSES_EXPORT(chtype) field_fore (const FIELD *);
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| 334 | extern NCURSES_EXPORT(chtype) field_back (const FIELD *);
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| 335 |
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| 336 | extern NCURSES_EXPORT(bool) new_page (const FIELD *);
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| 337 | extern NCURSES_EXPORT(bool) field_status (const FIELD *);
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| 338 |
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| 339 | extern NCURSES_EXPORT(void *) field_arg (const FIELD *);
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| 340 |
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| 341 | extern NCURSES_EXPORT(void *) field_userptr (const FIELD *);
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| 342 |
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| 343 | extern NCURSES_EXPORT(FIELDTYPE *) field_type (const FIELD *);
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| 344 |
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| 345 | extern NCURSES_EXPORT(char *) field_buffer (const FIELD *,int);
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| 346 |
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| 347 | extern NCURSES_EXPORT(Field_Options) field_opts (const FIELD *);
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| 348 |
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| 349 | /******************
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| 350 | * FORM routines *
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| 351 | ******************/
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| 352 |
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| 353 | extern NCURSES_EXPORT(FORM *) new_form (FIELD **);
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| 354 |
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| 355 | extern NCURSES_EXPORT(FIELD **) form_fields (const FORM *);
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| 356 | extern NCURSES_EXPORT(FIELD *) current_field (const FORM *);
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| 357 |
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| 358 | extern NCURSES_EXPORT(WINDOW *) form_win (const FORM *);
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| 359 | extern NCURSES_EXPORT(WINDOW *) form_sub (const FORM *);
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| 360 |
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| 361 | extern NCURSES_EXPORT(Form_Hook) form_init (const FORM *);
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| 362 | extern NCURSES_EXPORT(Form_Hook) form_term (const FORM *);
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| 363 | extern NCURSES_EXPORT(Form_Hook) field_init (const FORM *);
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| 364 | extern NCURSES_EXPORT(Form_Hook) field_term (const FORM *);
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| 365 |
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| 366 | extern NCURSES_EXPORT(int) free_form (FORM *);
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| 367 | extern NCURSES_EXPORT(int) set_form_fields (FORM *,FIELD **);
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| 368 | extern NCURSES_EXPORT(int) field_count (const FORM *);
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| 369 | extern NCURSES_EXPORT(int) set_form_win (FORM *,WINDOW *);
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| 370 | extern NCURSES_EXPORT(int) set_form_sub (FORM *,WINDOW *);
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| 371 | extern NCURSES_EXPORT(int) set_current_field (FORM *,FIELD *);
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| 372 | extern NCURSES_EXPORT(int) field_index (const FIELD *);
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| 373 | extern NCURSES_EXPORT(int) set_form_page (FORM *,int);
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| 374 | extern NCURSES_EXPORT(int) form_page (const FORM *);
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| 375 | extern NCURSES_EXPORT(int) scale_form (const FORM *,int *,int *);
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| 376 | extern NCURSES_EXPORT(int) set_form_init (FORM *,Form_Hook);
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| 377 | extern NCURSES_EXPORT(int) set_form_term (FORM *,Form_Hook);
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| 378 | extern NCURSES_EXPORT(int) set_field_init (FORM *,Form_Hook);
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| 379 | extern NCURSES_EXPORT(int) set_field_term (FORM *,Form_Hook);
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| 380 | extern NCURSES_EXPORT(int) post_form (FORM *);
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| 381 | extern NCURSES_EXPORT(int) unpost_form (FORM *);
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| 382 | extern NCURSES_EXPORT(int) pos_form_cursor (FORM *);
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| 383 | extern NCURSES_EXPORT(int) form_driver (FORM *,int);
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| 384 | extern NCURSES_EXPORT(int) set_form_userptr (FORM *,void *);
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| 385 | extern NCURSES_EXPORT(int) set_form_opts (FORM *,Form_Options);
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| 386 | extern NCURSES_EXPORT(int) form_opts_on (FORM *,Form_Options);
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| 387 | extern NCURSES_EXPORT(int) form_opts_off (FORM *,Form_Options);
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| 388 | extern NCURSES_EXPORT(int) form_request_by_name (const char *);
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| 389 |
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| 390 | extern NCURSES_EXPORT(const char *) form_request_name (int);
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| 391 |
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| 392 | extern NCURSES_EXPORT(void *) form_userptr (const FORM *);
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| 393 |
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| 394 | extern NCURSES_EXPORT(Form_Options) form_opts (const FORM *);
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| 395 |
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| 396 | extern NCURSES_EXPORT(bool) data_ahead (const FORM *);
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| 397 | extern NCURSES_EXPORT(bool) data_behind (const FORM *);
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| 398 |
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| 399 | #ifdef __cplusplus
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| 400 | }
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| 401 | #endif
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| 402 |
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| 403 | #endif /* FORM_H */
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