163 lines
4.9 KiB
C
163 lines
4.9 KiB
C
/* $NetBSD: global.h,v 1.2 2021/04/12 08:54:11 mrg Exp $ */
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/*
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* Copyright (C) 1991-1994, 1997, 2006, 2008, 2012-2017 Free Software Foundation, Inc.
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* Copyright (C) 2016-2017 Philip A. Nelson.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The names Philip A. Nelson and Free Software Foundation may not be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY PHILIP A. NELSON ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL PHILIP A. NELSON OR THE FREE SOFTWARE FOUNDATION BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/* global.h: The global variables for bc. */
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/* The current break level's label. */
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EXTERN int break_label;
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/* The current if statement's else label or label after else. */
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EXTERN int if_label;
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/* The current for statement label for continuing the loop. */
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EXTERN int continue_label;
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/* Next available label number. */
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EXTERN int next_label;
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/* Byte code character storage. Used in many places for generation of code. */
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EXTERN char *genstr INIT(NULL);
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EXTERN int genlen INIT(0);
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/* Count of characters printed to the output in compile_only mode. */
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EXTERN int out_count;
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/* Have we generated any code since the last initialization of the code
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generator. */
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EXTERN char did_gen;
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/* Is this run an interactive execution. (Is stdin a terminal?) */
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EXTERN char interactive INIT(FALSE);
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/* Just generate the byte code. -c flag. */
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EXTERN int compile_only INIT(FALSE);
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/* Load the standard math functions. -l flag. */
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EXTERN int use_math INIT(FALSE);
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/* Give a warning on use of any non-standard feature (non-POSIX). -w flag. */
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EXTERN int warn_not_std INIT(FALSE);
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/* Accept POSIX bc only! -s flag. */
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EXTERN int std_only INIT(FALSE);
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/* Don't print the banner at start up. -q flag. */
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EXTERN int quiet INIT(FALSE);
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/* The list of file names to process. */
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EXTERN file_node *file_names INIT(NULL);
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/* The name of the current file being processed. */
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EXTERN char *file_name;
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/* Is the current file a named file or standard input? */
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EXTERN char is_std_in;
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/* global variables for the bc machine. All will be dynamic in size.*/
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/* Function storage. main is (0) and functions (1-f_count) */
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EXTERN bc_function *functions;
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EXTERN char **f_names;
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EXTERN int f_count;
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/* Variable stoarge and reverse names. */
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EXTERN bc_var **variables;
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EXTERN char **v_names;
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EXTERN int v_count;
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/* Array Variable storage and reverse names. */
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EXTERN bc_var_array **arrays;
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EXTERN char **a_names;
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EXTERN int a_count;
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/* Execution stack. */
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EXTERN estack_rec *ex_stack;
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/* Function return stack. */
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EXTERN fstack_rec *fn_stack;
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/* Current ibase, obase, scale, and n_history (if needed). */
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EXTERN int i_base;
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EXTERN int o_base;
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EXTERN int scale;
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#if defined(READLINE) || defined(LIBEDIT)
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EXTERN int n_history;
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#endif
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#if defined(LIBEDIT)
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/* LIBEDIT data */
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EXTERN EditLine *edit INIT(NULL);
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EXTERN History *hist;
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EXTERN HistEvent histev;
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#endif
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/* "Condition code" -- false (0) or true (1) */
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EXTERN char c_code;
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/* Records the number of the runtime error. */
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EXTERN char runtime_error;
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/* Holds the current location of execution. */
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EXTERN program_counter pc;
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/* For POSIX bc, this is just for number output, not strings. */
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EXTERN int out_col;
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/* Keeps track of the current number of characters per output line.
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This includes the \n at the end of the line. */
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EXTERN int line_size;
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/* Input Line numbers and other error information. */
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EXTERN int line_no;
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EXTERN int had_error;
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/* For larger identifiers, a tree, and how many "storage" locations
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have been allocated. */
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EXTERN int next_array;
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EXTERN int next_func;
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EXTERN int next_var;
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EXTERN id_rec *name_tree;
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/* For use with getopt. Do not declare them here.*/
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extern int optind;
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/* Access to the yy input file. Defined in scan.c. */
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extern FILE *yyin;
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/* Access to libmath */
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extern CONST char *libmath[];
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