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[src/trunk]: src/external/bsd/bc Add Phil Nelson's bc version nb1.0
details: https://anonhg.NetBSD.org/src/rev/f4e8f320afcc
branches: trunk
changeset: 352593:f4e8f320afcc
user: phil <phil%NetBSD.org@localhost>
date: Mon Apr 10 02:28:23 2017 +0000
description:
Add Phil Nelson's bc version nb1.0
diffstat:
external/bsd/bc/Makefile | 5 +
external/bsd/bc/bin/Makefile | 22 +
external/bsd/bc/dist/bc.1 | 818 ++++++++++++++++++
external/bsd/bc/dist/bc.y | 799 +++++++++++++++++
external/bsd/bc/dist/bcdefs.h | 206 ++++
external/bsd/bc/dist/config.h | 84 +
external/bsd/bc/dist/const.h | 101 ++
external/bsd/bc/dist/execute.c | 801 +++++++++++++++++
external/bsd/bc/dist/global.c | 44 +
external/bsd/bc/dist/global.h | 162 +++
external/bsd/bc/dist/libmath.b | 342 +++++++
external/bsd/bc/dist/libmath.h | 46 +
external/bsd/bc/dist/load.c | 359 ++++++++
external/bsd/bc/dist/main.c | 364 ++++++++
external/bsd/bc/dist/number.c | 1737 +++++++++++++++++++++++++++++++++++++++
external/bsd/bc/dist/number.h | 143 +++
external/bsd/bc/dist/proto.h | 145 +++
external/bsd/bc/dist/scan.l | 374 ++++++++
external/bsd/bc/dist/storage.c | 1071 ++++++++++++++++++++++++
external/bsd/bc/dist/util.c | 844 ++++++++++++++++++
external/bsd/bc/dist/warranty.c | 62 +
21 files changed, 8529 insertions(+), 0 deletions(-)
diffs (truncated from 8613 to 300 lines):
diff -r 571f044e2796 -r f4e8f320afcc external/bsd/bc/Makefile
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/external/bsd/bc/Makefile Mon Apr 10 02:28:23 2017 +0000
@@ -0,0 +1,5 @@
+# $NetBSD: Makefile,v 1.1 2017/04/10 02:29:03 phil Exp $
+
+SUBDIR= bin
+
+.include <bsd.subdir.mk>
diff -r 571f044e2796 -r f4e8f320afcc external/bsd/bc/bin/Makefile
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/external/bsd/bc/bin/Makefile Mon Apr 10 02:28:23 2017 +0000
@@ -0,0 +1,22 @@
+.include <bsd.own.mk>
+
+PROG= bc
+BINDIR= /usr/bin
+
+SRCDIR= ${.CURDIR}/../dist
+.PATH: ${SRCDIR}
+
+SRCS= global.c load.c util.c execute.c main.c number.c storage.c \
+ bc.y scan.l warranty.c
+
+CPPFLAGS+= -I. -I${SRCDIR} -D_POSIX_SOURCE
+CFLAGS+= -funsigned-char
+YFLAGS+=
+LFLAGS+= -I8
+YHEADER=1
+WARNS=5
+
+LDADD+= -ll -ledit -ltermcap
+DPADD+= ${LIBL} ${LIBEDIT} ${LIBTERMCAP}
+
+.include <bsd.prog.mk>
diff -r 571f044e2796 -r f4e8f320afcc external/bsd/bc/dist/bc.1
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/external/bsd/bc/dist/bc.1 Mon Apr 10 02:28:23 2017 +0000
@@ -0,0 +1,818 @@
+.\" $NetBSD: bc.1,v 1.1 2017/04/10 02:28:23 phil Exp $
+.\"
+.\" bc.1 - the *roff document processor source for the bc manual
+.\"
+.\" Copyright (C) 1991-1994, 1997, 2000, 2003, 2012-2017 Free Software Foundation, Inc.
+.\" Copyright (C) 2004, 2017 Philip A. Nelson
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\" notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\" notice, this list of conditions and the following disclaimer in the
+.\" documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of Philip A. Nelson nor the name of the Free Software
+.\" Foundation may not be used to endorse or promote products derived from
+.\" this software without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY PHILIP A. NELSON ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL PHILIP A. NELSON OR THE FREE SOFTWARE FOUNDATION BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+.\" THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\"
+.\"
+.TH bc 1 .\" "Command Manual" nb1.0 "Jan 23, 2017"
+.SH NAME
+bc - An arbitrary precision calculator language
+.SH SYNTAX
+\fBbc\fR [ \fB-hlwsqv\fR ] [long-options] [ \fI file ...\fR ]
+.SH VERSION
+This man page documents bc version nb1.0.
+.SH DESCRIPTION
+\fBbc\fR is a language that supports arbitrary precision numbers
+with interactive execution of statements. There are some similarities
+in the syntax to the C programming language.
+A standard math library is available by command line option.
+If requested, the math library is defined before processing any files.
+\fBbc\fR starts by processing code from all the files listed
+on the command line in the order listed. After all files have been
+processed, \fBbc\fR reads from the standard input. All code is
+executed as it is read. (If a file contains a command to halt the
+processor, \fBbc\fR will never read from the standard input.)
+.PP
+This version of \fBbc\fR contains several extensions beyond
+traditional \fBbc\fR implementations and the POSIX draft standard.
+Command line options can cause these extensions to print a warning
+or to be rejected. This
+document describes the language accepted by this processor.
+Extensions will be identified as such.
+.SS OPTIONS
+.IP "-h, --help"
+Print the usage and exit.
+.IP "-i, --interactive"
+Force interactive mode.
+.IP "-l, --mathlib"
+Define the standard math library.
+.IP "-w, --warn"
+Give warnings for extensions to POSIX \fBbc\fR.
+.IP "-s, --standard"
+Process exactly the POSIX \fBbc\fR language.
+.IP "-v, --version"
+Print the version number and copyright and quit.
+.SS NUMBERS
+The most basic element in \fBbc\fR is the number. Numbers are
+arbitrary precision numbers. This precision is both in the integer
+part and the fractional part. All numbers are represented internally
+in decimal and all computation is done in decimal. (This version
+truncates results from divide and multiply operations.) There are two
+attributes of numbers, the length and the scale. The length is the
+total number of significant decimal digits in a number and the scale
+is the total number of decimal digits after the decimal point. For
+example:
+.nf
+.RS
+ .000001 has a length of 6 and scale of 6.
+ 1935.000 has a length of 7 and a scale of 3.
+.RE
+.fi
+.SS VARIABLES
+Numbers are stored in two types of variables, simple variables and
+arrays. Both simple variables and array variables are named. Names
+begin with a letter followed by any number of letters, digits and
+underscores. All letters must be lower case. (Full alpha-numeric
+names are an extension. In POSIX \fBbc\fR all names are a single
+lower case letter.) The type of variable is clear by the context
+because all array variable names will be followed by brackets ([]).
+.PP
+There are four special variables, \fBscale, ibase, obase,\fR and
+\fBlast\fR. \fBscale\fR defines how some operations use digits after the
+decimal point. The default value of \fBscale\fR is 0. \fBibase\fR
+and \fBobase\fR define the conversion base for input and output
+numbers. The default for both input and output is base 10.
+\fBlast\fR (an extension) is a variable that has the value of the last
+printed number. These will be discussed in further detail where
+appropriate. All of these variables may have values assigned to them
+as well as used in expressions.
+.SS COMMENTS
+Comments in \fBbc\fR start with the characters \fB/*\fR and end with
+the characters \fB*/\fR. Comments may start anywhere and appear as a
+single space in the input. (This causes comments to delimit other
+input items. For example, a comment can not be found in the middle of
+a variable name.) Comments include any newlines (end of line) between
+the start and the end of the comment.
+.PP
+To support the use of scripts for \fBbc\fR, a single line comment has been
+added as an extension. A single line comment starts at a \fB#\fR
+character and continues to the next end of the line. The end of line
+character is not part of the comment and is processed normally.
+.SS EXPRESSIONS
+The numbers are manipulated by expressions and statements. Since
+the language was designed to be interactive, statements and expressions
+are executed as soon as possible. There is no "main" program. Instead,
+code is executed as it is encountered. (Functions, discussed in
+detail later, are defined when encountered.)
+.PP
+A simple expression is just a constant. \fBbc\fR converts constants
+into internal decimal numbers using the current input base, specified
+by the variable \fBibase\fR. (There is an exception in functions.)
+The legal values of \fBibase\fR are 2 through 36. (Base values
+greater than 16 are an extension.) Assigning a value outside this
+range to \fBibase\fR will result in a value of 2 or 36. Input numbers
+may contain the characters 0-9 and A-Z. (Note: They must be capitals.
+Lower case letters are variable names.) Single digit numbers always
+have the value of the digit regardless of the value of
+\fBibase\fR. (i.e. A = 10.) For multi-digit numbers, \fBbc\fR changes
+all input digits greater or equal to ibase to the value of
+\fBibase\fR-1. This makes the number \fBZZZ\fR always be the largest
+3 digit number of the input base.
+.PP
+Full expressions are similar to many other high level languages.
+Since there is only one kind of number, there are no rules for mixing
+types. Instead, there are rules on the scale of expressions. Every
+expression has a scale. This is derived from the scale of original
+numbers, the operation performed and in many cases, the value of the
+variable \fBscale\fR. Legal values of the variable \fBscale\fR are
+0 to the maximum number representable by a C integer.
+.PP
+In the following descriptions of legal expressions, "expr" refers to a
+complete expression and "var" refers to a simple or an array variable.
+A simple variable is just a
+.RS
+\fIname\fR
+.RE
+and an array variable is specified as
+.RS
+\fIname\fR[\fIexpr\fR]
+.RE
+Unless specifically
+mentioned the scale of the result is the maximum scale of the
+expressions involved.
+.IP "- expr"
+The result is the negation of the expression.
+.IP "++ var"
+The variable is incremented by one and the new value is the result of
+the expression.
+.IP "-- var"
+The variable
+is decremented by one and the new value is the result of the
+expression.
+.IP "var ++"
+ The result of the expression is the value of
+the variable and then the variable is incremented by one.
+.IP "var --"
+The result of the expression is the value of the variable and then
+the variable is decremented by one.
+.IP "expr + expr"
+The result of the expression is the sum of the two expressions.
+.IP "expr - expr"
+The result of the expression is the difference of the two expressions.
+.IP "expr * expr"
+The result of the expression is the product of the two expressions.
+.IP "expr / expr"
+The result of the expression is the quotient of the two expressions.
+The scale of the result is the value of the variable \fBscale\fR.
+.IP "expr % expr"
+The result of the expression is the "remainder" and it is computed in the
+following way. To compute a%b, first a/b is computed to \fBscale\fR
+digits. That result is used to compute a-(a/b)*b to the scale of the
+maximum of \fBscale\fR+scale(b) and scale(a). If \fBscale\fR is set
+to zero and both expressions are integers this expression is the
+integer remainder function.
+.IP "expr ^ expr"
+The result of the expression is the value of the first raised to the
+second. The second expression must be an integer. (If the second
+expression is not an integer, a warning is generated and the
+expression is truncated to get an integer value.) The scale of the
+result is \fBscale\fR if the exponent is negative. If the exponent
+is positive the scale of the result is the minimum of the scale of the
+first expression times the value of the exponent and the maximum of
+\fBscale\fR and the scale of the first expression. (e.g. scale(a^b)
+= min(scale(a)*b, max( \fBscale,\fR scale(a))).) It should be noted
+that expr^0 will always return the value of 1.
+.IP "( expr )"
+This alters the standard precedence to force the evaluation of the
+expression.
+.IP "var = expr"
+The variable is assigned the value of the expression.
+.IP "var <op>= expr"
+This is equivalent to "var = var <op> expr" with the exception that
+the "var" part is evaluated only once. This can make a difference if
+"var" is an array.
+.PP
+ Relational expressions are a special kind of expression
+that always evaluate to 0 or 1, 0 if the relation is false and 1 if
+the relation is true. These may appear in any legal expression.
+(POSIX bc requires that relational expressions are used only in if,
+while, and for statements and that only one relational test may be
+done in them.) The relational operators are
+.IP "expr1 < expr2"
+The result is 1 if expr1 is strictly less than expr2.
+.IP "expr1 <= expr2"
+The result is 1 if expr1 is less than or equal to expr2.
+.IP "expr1 > expr2"
+The result is 1 if expr1 is strictly greater than expr2.
+.IP "expr1 >= expr2"
+The result is 1 if expr1 is greater than or equal to expr2.
+.IP "expr1 == expr2"
+The result is 1 if expr1 is equal to expr2.
+.IP "expr1 != expr2"
+The result is 1 if expr1 is not equal to expr2.
+.PP
+Boolean operations are also legal. (POSIX \fBbc\fR does NOT have
+boolean operations). The result of all boolean operations are 0 and 1
+(for false and true) as in relational expressions. The boolean
+operators are:
+.IP "!expr"
+The result is 1 if expr is 0.
+.IP "expr && expr"
+The result is 1 if both expressions are non-zero.
+.IP "expr || expr"
+The result is 1 if either expression is non-zero.
+.PP
+The expression precedence is as follows: (lowest to highest)
+.nf
+.RS
+|| operator, left associative
+&& operator, left associative
+! operator, nonassociative
+Relational operators, left associative
+Assignment operator, right associative
++ and - operators, left associative
+*, / and % operators, left associative
+^ operator, right associative
+unary - operator, nonassociative
+++ and -- operators, nonassociative
+.RE
+.fi
+.PP
+This precedence was chosen so that POSIX compliant \fBbc\fR programs
+will run correctly. This will cause the use of the relational and
+logical operators to have some unusual behavior when used with
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