drygdryg/calc
1
0
Fork 0
mirror of https://github.com/lcn2/calc.git synced 2025-08-16 01:03:29 +03:00
Code Issues Packages Projects Releases Wiki Activity

Changes as per calc 2.12.7.3

Browse Source
This commit is contained in:
Landon Curt Noll
2021-02-02 20:33:59 -08:00
parent 9b69648921
commit ccfa797b68
18 changed files with 205 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

64
calc.man
View File

@@ -50,7 +50,7 @@ calc \- arbitrary precision calculator
.RB [ [\-\-]\ calc_cmd\ \&.\|.\|. ]
.in -5n
.sp
\fI#!${BINDIR}/calc\fP\ [other_flags\ \&...] \fB\-f\fP
\fI#!${BINDIR}/calc\fP\ [other_flags\ \&...] \fB\-s\fP \fB\-f\fP
.SH DESCRIPTION
\&
.br
@@ -219,24 +219,29 @@ The getenv() builtin will still return values, however.
.TP
.B \-f
This flag is normally only with calc shell scripts.
.sp 1
This flag is required when using calc in
.BR "shell script mode" .
It must be at the end of the initial
.B #!
line of the script.
line of the script
and must be immedately preceeded by the
.B \-s
flag.
.sp 1
This flag is normally only at the end of a calc shell script.
If the first line of an executable file begins
.B #!
followed by the absolute pathname of the
.B calc
program and the flag
program and if the first line ends with the two flags
.B \-s
.B \-f
as in:
.sp 1
.in +5n
.nf
\fI#!${BINDIR}/calc\fP\ [other_flags\ \&...] \fB\-f\fP
\fI#!${BINDIR}/calc\fP\ [other_flags\ \&...] \fB\-s\fP \fB\-f\fP
.fi
.in -5n
.sp 1
@@ -270,7 +275,7 @@ on the command line:
.sp 1
.in +5n
.nf
\fIcalc\fP\ [other_flags\ \&...] \fB\-f\fP filename
\fIcalc\fP\ [other_flags\ \&...] \fB\-s\fP \fB\-f\fP filename
.fi
.in -5n
.sp 1
@@ -283,6 +288,16 @@ Use of
.B \-f
implies
.BR \-s .
However in a calc shell script,
one must include
.B \-f
before
.B \-s
on the initial
.B #!
line.
.sp 1
In addition,
.B \-d
and
@@ -753,25 +768,28 @@ If the first line of an executable file begins
.B #!
followed by the absolute pathname of the
.B calc
program and the flag
program and the first line ends with the two flags
.B \-s
.B \-f
as in:
.sp 1
.in +5n
.nf
\fI#!${BINDIR}/calc\fP\ [other_flags\ \&...] \fB\-f\fP
\fI#!${BINDIR}/calc\fP\ [other_flags\ \&...] \fB\-s\fP \fB\-f\fP
.fi
.in -5n
.sp 1
the rest of the file will be processed in
.BR "shell script mode" .
Note that
.B \-s
.B \-f
must at the end of the initial ``#!'' line.
Any other optional
.B "other_flags"
must come before
the
.B \-s
.BR \-f .
.sp 1
In
@@ -803,18 +821,26 @@ the file
.sp 1
.in +5n
.nf
\fI#!${BINDIR}/calc\fP\ \&\fB\-q\fP \fB\-f\fP
#
# mersenne - an example of a calc \fBshell script file\fP
\fI#!${BINDIR}/calc\fP\ \&\fB\-q\fP \&\fB\-s\fP \fB\-f\fP
/* setup */
argc = argv();
program = argv(0);
stderr = files(2);
/* parse args */
if (argv() != 1) {
fprintf(files(2), "usage: %s exp\\n", config("program"));
if (argc != 2) {
fprintf(stderr, "usage: %s exp\n", program);
abort "must give one exponent arg";
}
exp = eval(argv(1));
if (!isint(exp) || exp < 0) {
fprintf(stderr, "%s: exp must be non-negative integer\n", program);
abort "must give one exponent arg";
}
/* print the mersenne number */
print "2^": argv(0) : "-1 =", 2^eval(argv(0))-1;
print "2^": exp : "-1 =", 2^exp-1;
.fi
.in -5n
.sp 1
@@ -844,9 +870,9 @@ will print:
.sp 1
Note that because
.B \-s
is assumed in
is required in
.B "shell script mode"
and non-dashed args are made available as
non-dashed args are made available as
strings via the
.BR argv ()
builtin function.
@@ -854,16 +880,16 @@ Therefore:
.sp 1
.in +5n
.nf
2^eval(argv(0))-1
2^eval(argv(1))-1
.fi
.in -5n
.sp 1
will print the decimal value of 2^n-1
but
whereas
.sp 1
.in +5n
.nf
2^argv(0)-1
2^argv(1)-1
.fi
.in -5n
.sp 1