Add make test rule to 2012/zeitak + formatting

The make test rule runs the new test.sh script which checks the return
value of the program run on a variety of new files (and the old
incorrect.c which was renamed incorrect.paren.c). The new files include
1984/anonymous.c and 1984/anonymous.alt.c as the author explicitly
mentioned that entry.

The README.md file has been format/typo checked.

2012/zeitak/Makefile

@@ -113,7 +113,7 @@ ENTRY= zeitak
 PROG= ${ENTRY}
 #
 OBJ= ${PROG}.o
-DATA= incorrect.c
+DATA= incorrect.paren.c incorrect.brace.c incorrect.bracket.c
 TARGET= ${PROG}
 #
 ALT_OBJ= ${PROG}.alt.o
@@ -135,6 +135,10 @@ all: data ${TARGET}
 ${PROG}: ${PROG}.c
 	${CC} ${CFLAGS} $< -o $@ ${LDFLAGS}
 
+test: test.sh
+	./$< || exit 1
+
+
 # alternative executable
 #
 alt: data ${ALT_TARGET}

2012/zeitak/README.md

@@ -4,6 +4,9 @@
 make
 ```
 
+There is an alternate version that is slightly deobfuscated. See [alternate
+code](#alternate-code) below.
+
 
 ## To use:
 
@@ -18,8 +21,7 @@ try [incorrect.c](incorrect.c) and the program itself.
 ### Try:
 
 ```sh
-./zeitak < zeitak.c
+make test
-./zeitak < incorrect.c
 ```
 
 NOTE: it prints an error and exits on the first nesting error so it will not
@@ -28,17 +30,19 @@ detect multiple issues!
 
 ## Alternate code:
 
-An alternate version of this entry, [zeitak.alt.c](zeitak.alt.c), is provided.
+This version, [zeitak.alt.c](zeitak.alt.c), is a version that has been slightly
-The file [zeitak.alt.c](zeitak.alt.c) provides a version that has been slightly
+deobfuscated.  You may find reading it helpful in your attempt to understand
-deobfuscated.  You may find reading that file helpful in your attempt
+this extremely subtle entry.
-to understand this extremely subtle entry.
 
-To compile this alternate version:
+
+### Alternate build:
 
 ```sh
 make alt
 ```
 
+### Alternate use:
+
 Use `zeitak.alt` as you would `zeitak` above.
 
 
@@ -55,8 +59,10 @@ just to understand 18 key characters of this code.
 
 ## Author's remarks:
 
+
 ### Nesting Errors Detector
 
+
 #### What does it do
 
 As you have probably understood by looking at the source\*, this program has
@@ -69,7 +75,8 @@ If an error is detected, an error message will be printed. If the problem
 is a superfluous closing bracket, it will even print a few characters
 around it's position.
 
-* Make sure you view the source with 4 spaces tab width.
+\* Make sure you view the source with 4 spaces tab width.
+
 
 #### Features
 
@@ -99,7 +106,7 @@ even more limited source, that is:
 
 * Without any digits.
 * Without any character constants.
-* Without using functions from headers other than stdio.
+* Without using functions from headers other than `stdio`.
 * Without any control-flow keywords (not even the `?:` operator).
 * Without any arithmetic or logic operators!
 
@@ -107,7 +114,8 @@ So, what's left? Parenthesis, and lots of them, as looking at the source will
 reveal immediately. The main obfuscation is building the whole algorithm using
 only function calls, typecasts, array lookups and pointer operators.
 
-##### Additional obfuscations include:
+
+#### Additional obfuscations include:
 
 * Extensive reuse of identifiers: Macros share names with variables, inner
   curly braces scopes contain variables with names identical to those in the
@@ -117,16 +125,16 @@ only function calls, typecasts, array lookups and pointer operators.
 * Mostly one-letter identifiers.
 * Complex recursion: A function might call itself once, twice, or not at all.
 
+
 #### Compilation/Portability/Running Notes
 
 * The program requires `char` to be one byte and pointers to be
   at least two bytes long.
 
 * The program was tested on the following platforms:
-
+    - Ubuntu 9.04 32-bit with GCC
-- Ubuntu 9.04 32-bit with GCC
+    - Windows 7 32-bit with GCC
-- Windows 7 32-bit with GCC
+    - Windows 7 32-bit with OpenWatcom
-- Windows 7 32-bit with OpenWatcom
 
 
 ## Copyright and CC BY-SA 4.0 License:

2012/zeitak/anonymous.alt.c

@@ -0,0 +1,2 @@
+int i;main(){for(;i["]<i;++i){--i;}"];read('-'-'-',i+++"hell\
+o, world!\n",'/'/'/'));}read(j,i,p){write(j/p+p,i---j,i/i);}

2012/zeitak/anonymous.c

@@ -0,0 +1,2 @@
+int i;main(){for(;i["]<i;++i){--i;}"];read('-'-'-',i+++"hell\
+o, world!\n",'/'/'/'));}read(j,i,p)void*i;{write(j/p+p,i---j,(int)i/(int)i);}

2012/zeitak/incorrect.1.quote.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() { 
+	int i=40;
+	printf(");
+	return 0;
+}

2012/zeitak/incorrect.3.quotes.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() { 
+	int i=40;
+	printf(""");
+	return 0;
+}

2012/zeitak/incorrect.brace.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() {}}
+	int i=40;
+	printf("%c",(char)(i)));
+	return 0;
+}

2012/zeitak/incorrect.bracket.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() ]] }}
+	int i=40;
+	printf("%c",(char)(i)));
+	return 0;
+}

2012/zeitak/incorrect.paren.c

@@ -1,7 +1,7 @@
-#include <stdio.h>
+#include <stdio.h>
-
+
-int main() {
+int main() {
-	int i=40;
+	int i=40;
-	printf("%c",(char)(i)));
+	printf("%c",(char)(i)));
-	return 0;
+	return 0;
-}
+}

2012/zeitak/incorrect.quote-esc.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() { 
+	int i=40;
+	printf("\"");
+	return 0;
+}

2012/zeitak/incorrect.single.quote.c

@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main() { 
+	int i=40;
+	printf(');
+	return 0;
+}

2012/zeitak/incorrect.txt

@@ -0,0 +1 @@
+"

2012/zeitak/test.sh

@@ -0,0 +1,161 @@
+#!/usr/bin/env bash
+#
+# try.sh - demonstrate IOCCC winner 2012/zeitak
+#
+
+# 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="$CC" all >/dev/null || exit 1
+
+# clear screen after compilation so that only the entry is shown
+clear
+
+# assume no error: set ERROR to 0
+ERROR=0
+
+read -r -n 1 -p "Press any key to test zeitak.c for nesting errors: "
+echo 1>&2
+./zeitak < zeitak.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 3 ]]; then
+    echo "Error: did not get exit code 3: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat anonymous.c" 1>&2
+cat anonymous.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test anonymous.c for nesting errors: "
+echo 1>&2
+./zeitak < anonymous.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 3 ]]; then
+    echo "Error: did not get exit code 3: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat anonymous.alt.c" 1>&2
+cat anonymous.alt.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test anonymous.alt.c for nesting errors: "
+echo 1>&2
+./zeitak < anonymous.alt.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 3 ]]; then
+    echo "Error: did not get exit code 3: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.brace.c" 1>&2
+cat incorrect.brace.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.brace.c: "
+echo 1>&2
+./zeitak < incorrect.brace.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.bracket.c" 1>&2
+cat incorrect.bracket.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.bracket.c: "
+echo 1>&2
+./zeitak < incorrect.bracket.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.paren.c" 1>&2
+cat incorrect.paren.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.paren.c: "
+echo 1>&2
+./zeitak < incorrect.paren.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.quote-esc.c" 1>&2
+cat incorrect.quote-esc.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.quote-esc.c: "
+echo 1>&2
+./zeitak < incorrect.quote-esc.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.3.quotes.c" 1>&2
+cat incorrect.3.quotes.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.3.quotes.c: "
+echo 1>&2
+./zeitak < incorrect.3.quotes.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.single.quote.c" 1>&2
+cat incorrect.single.quote.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.single.quote.c: "
+echo 1>&2
+./zeitak < incorrect.single.quote.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.1.quote.c" 1>&2
+cat incorrect.1.quote.c
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.1.quote.c: "
+echo 1>&2
+./zeitak < incorrect.1.quote.c
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+echo "$ cat incorrect.txt" 1>&2
+cat incorrect.txt
+echo 1>&2
+read -r -n 1 -p "Press any key to test incorrect.txt: "
+echo 1>&2
+./zeitak < incorrect.txt
+EXIT_CODE="$?"
+if [[ "$EXIT_CODE" -ne 10 ]]; then
+    echo "Error: did not get exit code 10: $EXIT_CODE" 1>&2
+    ERROR=1
+fi
+echo 1>&2
+
+exit "$ERROR"

thanks-for-fixes.md

@@ -3382,6 +3382,15 @@ We're not sure whether we want to thank Cody or not for this :-) and he's not
 sure if he wants to be thanked either :-) but we appreciate it nonetheless.
 
 
+## [2012/zeitak](2012/zeitak/zeitak.c) ([README.md](2012/zeitak/README.md]))
+
+Cody added the `make test` rule and the [test.sh](2012/zeitak/test.sh) along
+with a number of files that will be correctly be flagged as incorrect (including
+a text file to show that it's not that it parses C but rather just matching
+pairs though that should be obvious) and also some that are correct including
+1984/anonymous (as the author explicitly mentioned it).
+
+
 # <a name="2013"></a>2013