1 /* $NetBSD: parse.y,v 1.9 2000/08/15 02:09:11 phil Exp $ */ 2 3 /* 4 * Copyright 1997 Piermont Information Systems Inc. 5 * All rights reserved. 6 * 7 * Written by Philip A. Nelson for Piermont Information Systems Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software develooped for the NetBSD Project by 20 * Piermont Information Systems Inc. 21 * 4. The name of Piermont Information Systems Inc. may not be used to endorse 22 * or promote products derived from this software without specific prior 23 * written permission. 24 * 25 * THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``AS IS'' 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL PIERMONT INFORMATION SYSTEMS INC. BE 29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 35 * THE POSSIBILITY OF SUCH DAMAGE. 36 * 37 */ 38 39 40 %{ 41 42 #include <stdio.h> 43 #include "defs.h" 44 45 static id_rec *cur_menu; 46 static optn_info *cur_optn; 47 48 %} 49 50 %union { 51 char *s_value; 52 int i_value; 53 optn_info *optn_value; 54 action a_value; 55 } 56 57 58 %token <i_value> X Y W H NO BOX SUB HELP MENU NEXT EXIT ACTION ENDWIN OPTION 59 %token <i_value> TITLE DEFAULT DISPLAY ERROR EXITSTRING ALLOW DYNAMIC MENUS 60 SCROLLABLE SHORTCUT 61 %token <s_value> STRING NAME CODE INT_CONST CHAR_CONST 62 63 %type <s_value> init_code system helpstr 64 %type <optn_value> option option_list 65 %type <i_value> act_opt 66 %type <a_value> action exitact 67 68 %start system 69 70 %% 71 72 system : init_code menu_list 73 { check_defined(); 74 if (!had_errors) 75 write_menu_file($1); 76 } 77 ; 78 79 init_code : /* empty */ { $$ = ""; } 80 | CODE 81 ; 82 83 menu_list : /* empty */ 84 | menu_list menu_def 85 | menu_list default_def 86 | menu_list initerror_def 87 | menu_list dynamic_def 88 ; 89 90 dynamic_def : ALLOW DYNAMIC MENUS ';' 91 { do_dynamic = 1; } 92 93 initerror_def : ERROR action ';' 94 { error_act = $2; } 95 96 default_def : DEFAULT 97 { cur_menu = &default_menu; } 98 opt opt_list ";" 99 100 menu_def : MENU NAME 101 { cur_menu = get_menu ($2); 102 if (cur_menu->info != NULL) 103 yyerror ("Menu %s defined twice", $2); 104 else { 105 cur_menu->info = 106 (menu_info *) malloc (sizeof (menu_info)); 107 *(cur_menu->info) = default_info; 108 } 109 } 110 opts ";" dispact option_list exitact helpstr 111 { optn_info *t; 112 cur_menu->info->optns = NULL; 113 while ($7 != NULL) { 114 t = $7; 115 $7 = $7->next; 116 t->next = cur_menu->info->optns; 117 cur_menu->info->optns = t; 118 cur_menu->info->numopt++; 119 } 120 } 121 ; 122 123 opts : /* empty */ 124 | opt_list 125 ; 126 127 opt_list : "," opt 128 | opt_list "," opt 129 ; 130 131 opt : NO EXIT { cur_menu->info->mopt |= NOEXITOPT; } 132 | EXIT { cur_menu->info->mopt &= ~NOEXITOPT; } 133 | NO BOX { cur_menu->info->mopt |= NOBOX; } 134 | BOX { cur_menu->info->mopt &= ~NOBOX; } 135 | NO SCROLLABLE { cur_menu->info->mopt &= ~SCROLL; } 136 | SCROLLABLE { cur_menu->info->mopt |= SCROLL; } 137 | NO SHORTCUT { cur_menu->info->mopt |= NOSHORTCUT; } 138 | SHORTCUT { cur_menu->info->mopt &= ~NOSHORTCUT; } 139 | X "=" INT_CONST { cur_menu->info->x = atoi($3); } 140 | Y "=" INT_CONST { cur_menu->info->y = atoi($3); } 141 | W "=" INT_CONST { cur_menu->info->w = atoi($3); } 142 | H "=" INT_CONST { cur_menu->info->h = atoi($3); } 143 | TITLE STRING { cur_menu->info->title = $2; } 144 | EXITSTRING STRING { cur_menu->info->exitstr = $2; } 145 ; 146 147 option_list : option 148 | option_list option { $2->next = $1; $$ = $2; } 149 ; 150 151 option : OPTION STRING "," 152 { cur_optn = (optn_info *) malloc (sizeof(optn_info)); 153 cur_optn->name = $2; 154 cur_optn->menu = -1; 155 cur_optn->issub = FALSE; 156 cur_optn->doexit = FALSE; 157 cur_optn->optact.code = ""; 158 cur_optn->optact.endwin = FALSE; 159 cur_optn->next = NULL; 160 } 161 elem_list ";" 162 { $$ = cur_optn; } 163 ; 164 165 elem_list : elem 166 | elem_list "," elem 167 ; 168 169 elem : NEXT MENU NAME 170 { id_rec *t = get_menu ($3); 171 if (cur_optn->menu != -1) 172 yyerror ("Double sub/next menu definition"); 173 else { 174 cur_optn->menu = t->menu_no; 175 } 176 } 177 | SUB MENU NAME 178 { id_rec *t = get_menu ($3); 179 if (cur_optn->menu != -1) 180 yyerror ("Double sub/next menu definition"); 181 else { 182 cur_optn->menu = t->menu_no; 183 cur_optn->issub = TRUE; 184 } 185 } 186 | action { cur_optn->optact = $1; } 187 | EXIT { cur_optn->doexit = TRUE; } 188 ; 189 190 action : ACTION act_opt CODE 191 { $$.code = $3; 192 $$.endwin = $2; 193 } 194 ; 195 196 act_opt : /* empty */ { $$ = 0; } 197 | "(" ENDWIN ")" { $$ = 1; } 198 ; 199 200 dispact : /* empty */ { cur_menu->info->postact.code = ""; } 201 | DISPLAY action ";" { cur_menu->info->postact = $2; } 202 ; 203 204 205 exitact : /* empty */ { cur_menu->info->exitact.code = ""; } 206 | EXIT action ";" { cur_menu->info->exitact = $2; } 207 ; 208 209 helpstr : /* empty */ { cur_menu->info->helpstr = NULL; } 210 | HELP CODE ";" { cur_menu->info->helpstr = $2; } 211 ; 212