Add 2011/hou/try.sh + format/typo checks

This should complete 2011/hou's review.

2011/hou/README.md

@@ -15,16 +15,11 @@ make
 ### Try:
 
 ```sh
-./hou '11/26+222/31'
+./try.sh
-
-./hou 'log((21701-19937)-(23209-21701))/log(2)'
-
-./hou 'sin(1.5708)+0.04321+log(sqrt(exp(1*1*1)))+(1+2*3)-0.4-0.6+(4+6)*(2-1+2*3)-tan(0.785398)+2*10/3*6*sqrt(16/2/2)*10+10000-1000'
-
-./hou 'a calculator expression -- see the C Code for details'
 ```
 
-What does the last one mean?
+As the script asks you, what does the last one mean? Can you get it to report a
+different value? Hint: it's in this file, kind of.
 
 
 ## Judges' remarks:
@@ -50,30 +45,36 @@ What does this evaluate to in C?
 +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~+
 ```
 
+
 ### Self documenting source
 
 Comments would almost be redundant.  :-}
 
+
 ### The ASCII art is valid C code
 
 ... and not just fancy formatted comment removed by the C Pre-processor.
 
+
 ### The only multi-byte strings are format strings
 
 The code does not contain some simple string-encoded lookup table for calculator
 operations.
 
+
 ### Example input and output in the source
 
 The example input and output in the C code is significant.  Can you find out
 why?
 
+
 ### The button layout
 
 The button layout in the C code is significant ... not just a nice looking
 layout.
 
-### input parsing
+
+### Input parsing
 
 The parser is functionally equivalent to a normal arithmetic parser for all
 valid inputs.  For another fun challenge: try to determine how it parses the
@@ -91,7 +92,7 @@ supported functionality using embedded ASCII art.
 - A few line numbers are significant and careless beautification will break the
 program.
 - The entire ASCII art is valid code. The preprocessor won't remove any part of it.
-- The only strings longer than 1 byte are printf/sscanf format strings, even
+- The only strings longer than 1 byte are `printf(3)`/`sscanf(3)` format strings, even
 after preprocessing. No string-encoded lookup table is used.
 - The example input and its expected output are both algorithmically
 significant.
@@ -99,14 +100,16 @@ significant.
 - The actual syntax being parsed is not that obvious, despite being functionally
 equivalent for all correct inputs.
 
+
 ### Portability
 
 - This program requires `argv` to point to writable memory. It doesn't require
-the actual argv strings to be writable, though.
+the actual `argv` strings to be writable, though.
 - This program requires ASCII.
 - This program doesn't work with `%e` style numbers like `1e-4`.
 - Some seemingly redundant code works to eliminate warnings and evade a gcc bug.
 
+
 ### Spoilers
 
 The parser parses function names, subtraction, and division as single-letter

2011/hou/try.sh

@@ -0,0 +1,46 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2011/hou
+#
+
+# make sure CC is set so that when we do make CC="$CC" it isn't empty. Doing it
+# this way allows us to have the user specify a different compiler in an easy
+# way.
+if [[ -z "$CC" ]]; then
+    CC="cc"
+fi
+
+make CC="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+read -r -n 1 -p "Observe how this one is in the code, both the equation and the answer: "
+echo "$ ./hou '11/26+222/31'" 1>&2
+./hou '11/26+222/31'
+echo 1>&2
+
+read -r -n 1 -p "Press any key to continue: "
+echo "$ ./hou 'log((21701-19937)-(23209-21701))/log(2)'" 1>&2
+./hou 'log((21701-19937)-(23209-21701))/log(2)'
+echo 1>&2
+
+read -r -n 1 -p "Press any key to continue: "
+echo "$ ./hou 'sin(1.5708)+0.04321+log(sqrt(exp(1*1*1)))+(1+2*3)-0.4-0.6+(4+6)*(2-1+2*3)-tan(0.785398)+2*10/3*6*sqrt(16/2/2)*10+10000-1000'" 1>&2
+./hou 'sin(1.5708)+0.04321+log(sqrt(exp(1*1*1)))+(1+2*3)-0.4-0.6+(4+6)*(2-1+2*3)-tan(0.785398)+2*10/3*6*sqrt(16/2/2)*10+10000-1000'
+echo 1>&2
+
+read -r -n 1 -p "Press any key to continue: "
+echo "$ ./hou '1+2*3'" 1>&2
+./hou '1+2*3'
+echo 1>&2
+
+read -r -n 1 -p "Press any key to continue: "
+echo "$ ./hou '(1+2)*3'" 1>&2
+./hou '(1+2)*3'
+echo 1>&2
+
+read -r -n 1 -p "Press any key to continue: "
+echo "$ ./hou 'a calculator expression -- see the C Code for details'" 1>&2
+./hou 'a calculator expression -- see the C Code for details'
+echo "Now answer: what does the last one mean? Can you get it to report something else?" 1>&2

thanks-for-fixes.md

@@ -3226,6 +3226,11 @@ and now it does work with 64-bit systems as well as 32-bit systems.
 Cody added the following words of wisdom: 'this is not a pipe'.
 
 
+## [2011/hou](2011/hou/hou.c) ([README.md](2011/hou/README.md]))
+
+Cody added the [try.sh](2011/hou/try.sh) script.
+
+
 ## [2011/konno](2011/konno/konno.c) ([README.md](2011/konno/README.md]))
 
 Cody fixed the program to not crash if no arg was specified as this was not a