1 /* $NetBSD: global.h,v 1.2 2021/04/12 08:54:11 mrg Exp $ */ 2 3 /* 4 * Copyright (C) 1991-1994, 1997, 2006, 2008, 2012-2017 Free Software Foundation, Inc. 5 * Copyright (C) 2016-2017 Philip A. Nelson. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 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. The names Philip A. Nelson and Free Software Foundation may not be 18 * used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY PHILIP A. NELSON ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 23 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 24 * IN NO EVENT SHALL PHILIP A. NELSON OR THE FREE SOFTWARE FOUNDATION BE 25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* global.h: The global variables for bc. */ 35 36 /* The current break level's label. */ 37 EXTERN int break_label; 38 39 /* The current if statement's else label or label after else. */ 40 EXTERN int if_label; 41 42 /* The current for statement label for continuing the loop. */ 43 EXTERN int continue_label; 44 45 /* Next available label number. */ 46 EXTERN int next_label; 47 48 /* Byte code character storage. Used in many places for generation of code. */ 49 EXTERN char *genstr INIT(NULL); 50 EXTERN int genlen INIT(0); 51 52 /* Count of characters printed to the output in compile_only mode. */ 53 EXTERN int out_count; 54 55 /* Have we generated any code since the last initialization of the code 56 generator. */ 57 EXTERN char did_gen; 58 59 /* Is this run an interactive execution. (Is stdin a terminal?) */ 60 EXTERN char interactive INIT(FALSE); 61 62 /* Just generate the byte code. -c flag. */ 63 EXTERN int compile_only INIT(FALSE); 64 65 /* Load the standard math functions. -l flag. */ 66 EXTERN int use_math INIT(FALSE); 67 68 /* Give a warning on use of any non-standard feature (non-POSIX). -w flag. */ 69 EXTERN int warn_not_std INIT(FALSE); 70 71 /* Accept POSIX bc only! -s flag. */ 72 EXTERN int std_only INIT(FALSE); 73 74 /* Don't print the banner at start up. -q flag. */ 75 EXTERN int quiet INIT(FALSE); 76 77 /* The list of file names to process. */ 78 EXTERN file_node *file_names INIT(NULL); 79 80 /* The name of the current file being processed. */ 81 EXTERN char *file_name; 82 83 /* Is the current file a named file or standard input? */ 84 EXTERN char is_std_in; 85 86 /* global variables for the bc machine. All will be dynamic in size.*/ 87 /* Function storage. main is (0) and functions (1-f_count) */ 88 89 EXTERN bc_function *functions; 90 EXTERN char **f_names; 91 EXTERN int f_count; 92 93 /* Variable stoarge and reverse names. */ 94 95 EXTERN bc_var **variables; 96 EXTERN char **v_names; 97 EXTERN int v_count; 98 99 /* Array Variable storage and reverse names. */ 100 101 EXTERN bc_var_array **arrays; 102 EXTERN char **a_names; 103 EXTERN int a_count; 104 105 /* Execution stack. */ 106 EXTERN estack_rec *ex_stack; 107 108 /* Function return stack. */ 109 EXTERN fstack_rec *fn_stack; 110 111 /* Current ibase, obase, scale, and n_history (if needed). */ 112 EXTERN int i_base; 113 EXTERN int o_base; 114 EXTERN int scale; 115 #if defined(READLINE) || defined(LIBEDIT) 116 EXTERN int n_history; 117 #endif 118 119 #if defined(LIBEDIT) 120 /* LIBEDIT data */ 121 EXTERN EditLine *edit INIT(NULL); 122 EXTERN History *hist; 123 EXTERN HistEvent histev; 124 #endif 125 126 /* "Condition code" -- false (0) or true (1) */ 127 EXTERN char c_code; 128 129 /* Records the number of the runtime error. */ 130 EXTERN char runtime_error; 131 132 /* Holds the current location of execution. */ 133 EXTERN program_counter pc; 134 135 /* For POSIX bc, this is just for number output, not strings. */ 136 EXTERN int out_col; 137 138 /* Keeps track of the current number of characters per output line. 139 This includes the \n at the end of the line. */ 140 EXTERN int line_size; 141 142 /* Input Line numbers and other error information. */ 143 EXTERN int line_no; 144 EXTERN int had_error; 145 146 /* For larger identifiers, a tree, and how many "storage" locations 147 have been allocated. */ 148 149 EXTERN int next_array; 150 EXTERN int next_func; 151 EXTERN int next_var; 152 153 EXTERN id_rec *name_tree; 154 155 /* For use with getopt. Do not declare them here.*/ 156 extern int optind; 157 158 /* Access to the yy input file. Defined in scan.c. */ 159 extern FILE *yyin; 160 161 /* Access to libmath */ 162 extern CONST char *libmath[]; 163
Indexes created Tue Feb 24 08:35:24 UTC 2026