Landon Curt Noll
4ee4c731f7
While not strictly necessary, replacing the two ASCII tab characters in the markdown copyright comment makes it easier to detect problematic TAB indentation within markdown files. After this commit, only 90 markdown files have leading ASCII TAB characters. And again, while not strictly necessary, we can consider running expand on those 90 markdown files to see what effect that might have on the HTML files they produce. Replace leading ASCII TAB characters with multiples of 8 ASCII SPACE characters (the default action of the `expand(1)` tool) might have an negative effect on some HTML formatting where **hack-a-round** formatting was attempted to fix broken indentation caused by problematic ASCII TAB characters. Think of this as a baseline for evaluating leading TAB characters within markdown files. TODO: Consider either using `expand(1)` to replace leading ASCII TAB characters with multiples of 8 ASCII SPACE characters AND/OR modifying the appropriate `bin` tool to convert leading ASCII TAB characters into multiples of 8 ASCII SPACE characters.
3.6 KiB
To build:
make
To use:
./robison
# enter an expression
echo expression | ./robison
Try:
./try.sh
Judges' remarks:
Of integers this prog does a lot,
plus minus, div times (and what not).
And modulus if remainders the needing,
on standard input percent be feeding.
More than one line can thru give input,
when interactive one values more than throughput.
With cut and paste and some time,
one can compute M(23209).
Author's remarks:
Oh, The Strings You Can C!
I love the C language; its terseness is tops.
But the thing I abhor is numerical ops!
No shifting, division, remainder, or times.
No increment, decrement, or subscripting blech,
No addition, subtraction, or bitwise bool glop.
As for pointer arithmetic -- totally yech!
But I do have a pref'rence, for pointer deref'rence.
I find NOTS are a bang, and relations a ball.
I like calling routines, and recursions in essence.
But the thing I like MOST is a string dot h CALL!
With mem copy I copy, and mem set I clear.
Take string len of this, and string copy that.
From my keyboard I pause, to hear subroutines dear:
The bark of string chrr, and the purr of string CAT!
One tiny detail that could lead to defeat.
From where an arg points: string calls only go forth,
So how to go back, to be Turing complete?
From standard dot H, to the rescue, q SORT!
My fixation might hint at a textual bent.
Does my program compose a tattoo for your shin?
Play crosswords or translate from Urdu to Tzouby?
To give it a whirl, just punch 2 + 2 in.
You can add, do division, and multiply too.
Take unary minus and also subtract.
Summing hairs of a walrus? No longer a fuss.
Parenthetical grouping -- no pushing a stack!
Try dividing a googol by one forty three,
Subtract an octillion - it's simply divine.
To compute a remainder, inscribe a percent.
For the sign of the answer, see C ninety nine!
A hundred and twenty five digits or so,
Are the lengthiest figures the program can gnash.
Go over that limit, by even a digit:
Risk incorrect answers, or witness a crash!
Say, say, does it have octal or binary zen?
What about duodecimal, ternary, hex?
Try the base as an option (of course in base ten)
Any base two to twenty -- for that is the specs.
Use lowercase in trans-decimal radix,
Divide babbage (in base seventeen) by cafe --
a nice fad, but avoid a division by nix:
No errant result, but you could wait all day!
To grok the internals, ask Queen Cleopatra,
or King Tutankhamun; for him it's a romp.
Addition by cats, and if given two figures,
to tell which is bigger, sort down and string CMP!
Unlawful subtraction, a grade school infraction,
starts at the left and works to the right.
Yet more innovation: like Henry Ford's cars,
With a pound and define, mass production of vars!
The moral is clear, for programmers out there:
With the C lib for strings, you can hack with a flair.