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Merge pull request #1893 from xexyl/ant93

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Add 1993/ant/try.txt and ants.txt
This commit is contained in:
Landon Curt Noll authored and GitHub committed 2024-01-14 12:02:34 -08:00
2 parents dce8348db1 9a283ae744
commit 2223747ef8
29 files changed
+597 -59
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1989/fubar/fubar.c
+3 -3
View File
@@ -9,12 +9,12 @@
if(m && q=='T' && o=='T'){m=0;(void)fread(tt,11,1,stdin);(void)printf("T %9d\n",atoi(tt)*QQ);}else {q=o;(void)putchar(o);}}exit(0);}
cc ouroboros.c -o x
#define zxc ;{/*
cat ./ouroboros.c | ./x $1 > x1
cat ouroboros.c | ./x $1 > x1
if [[ $? -ne 0 ]]; then
exit
fi
mv x1 ./ouroboros.c
chmod +x ./ouroboros.c
mv x1 ouroboros.c
chmod +x ouroboros.c
exec ./ouroboros.c $1
exit
*/
1989/fubar/fubar.sh
+1 -2
View File
@@ -9,8 +9,7 @@ fi
# run/compile it
rm -f ouroboros.c x1 x
ex - <<EOF
r fubar.c
ex fubar.c <<EOF
8,9j
w ouroboros.c
EOF
1992/adrian/.gitignore
+2
View File
@@ -13,8 +13,10 @@ adsleep
adsleep.c
adwc
adwc.c
adwc.adwc.txt
*.dSYM
indent
indent.c
indent.o
prog.orig
wc.adwc.txt
1992/adrian/README.md
+7 -10
View File
@@ -20,7 +20,7 @@ For more detailed information see [1992 adrian in bugs.md](/bugs.md#1992-adrian)
### Try:
```sh
./adrian adrian.grep.try < README.md
./try.sh
```
For the slow minded, try:
@@ -29,9 +29,6 @@ For the slow minded, try:
./adsleep 32767
```
NOTE: if you do not specify an arg some of the programs such as `adsleep` it
will very likely segfault do something funny. This is supposed to happen.
## Judges' remarks:
@@ -160,11 +157,11 @@ Running:
will perform a function similar to that of the unix `from` command.
If no filename is specified on the command line, then `__FILE__` is used
as the specification for the automaton. (Originally `"adgrep.c"` the file was renamed
to `adrian.c` by the judges but for more portability the arg was changed to
`__FILE__`.) In this case, the program will search for
matches to the regular expression:
If no filename is specified on the command line, then `__FILE__` is used as the
specification for the automaton. (Originally this was `"adgrep.c"` but the file
was renamed to `adrian.c` by the judges and for more portability the arg was
changed to `__FILE__`.) In this case, the program will search for matches to
the regular expression:
```
^.[^|C][^w[Q]*(Q|[w[]c).*|^.[C|]$
@@ -219,7 +216,7 @@ you can search for matches to
By some freak happenstance, lines of `adrian.c` which match this regular
expression form a unix `head(1)` command. It prints the first ten lines of
the file specified on the command line or adrian.c if no file is
the file specified on the command line or `adrian.c` if no file is
specified (again this was changed to `__FILE__`).
By setting the first line to
1992/adrian/try.sh
Executable
+61
View File
@@ -0,0 +1,61 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1992/adrian
#
# 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
# don't redirect output to /dev/null so that they can see how it's done,
# assuming it's not already built
make CC="$CC" everything || exit 1
# DON'T clear the screen so they can see how the files are generated!
echo 1>&2
read -r -n 1 -p "Press any key to show: adrian.grep.try: "
echo 1>&2
cat adrian.grep.try
echo 1>&2
read -r -n 1 -p "Press any key to run: ./adrian adrian.grep.try < README.md: "
echo 1>&2
./adrian adrian.grep.try < README.md
echo 1>&2
read -r -n 1 -p "Press any key to run: ./adhead try.sh: "
echo 1>&2
./adhead try.sh
echo 1>&2
read -r -n 1 -p "Press any key to run: ./adecho 1992 IOCCC adrian: "
echo 1>&2
./adecho 1992 IOCCC adrian
echo 1>&2
rm -f wc.adwc.txt adwc.adwc.txt
echo "$ wc adwc.c | sed -e 's/^[[:space:]]//g' | tr -s '[:space:]' | cut -d' ' -f1-3 | tee wc.adwc.txt" 1>&2
read -r -n 1 -p "Press any key to continue: "
echo 1>&2
wc adwc.c | sed -e 's/^[[:space:]]//g' | tr -s '[:space:]' | cut -d' ' -f1-3 | tee wc.adwc.txt
echo 1>&2
echo "$ ./adwc adwc.c|tr -s ' '|sed -e 's/^[[:space:]]//g' | tee adwc.adwc.txt" 1>&2
read -r -n 1 -p "Press any key to continue: "
echo 1>&2
./adwc adwc.c|tr -s ' '|sed -e 's/^[[:space:]]//g' | tee adwc.adwc.txt
echo 1>&2
read -r -n 1 -p "Press any key to show diff between wc.adwc.txt and adwc.adwc.txt: "
echo 1>&2
diff -s wc.adwc.txt adwc.adwc.txt
echo 1>&2
rm -f wc.adwc.txt adwc.adwc.txt
echo "$ ./adsleep 10" 1>&2
read -r -n 1 -p "Press any key to take a 10 second nap: "
echo 1>&2
./adsleep 10
1992/albert/README.md
+7 -1
View File
@@ -29,7 +29,7 @@ For more detailed information see [1992 albert in bugs.md](/bugs.md#1992-albert)
### Try:
```sh
./albert 1234567890123456789
./try.sh
```
@@ -74,6 +74,12 @@ make alt
Use `albert.alt` as you would `albert` above.
### Alternate try:
```sh
./try.alt.sh
```
## Judges' remarks:
We were impressed with the speed at which it was able to factor
1992/albert/try.alt.sh
Executable
+42
View File
@@ -0,0 +1,42 @@
#!/usr/bin/env bash
#
# try.alt.sh - demonstrate IOCCC winner 1992/albert alt code
#
# 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="$CC" alt >/dev/null || exit 1
# clear screen after compilation so that only the entry is shown
clear
read -r -n 1 -p "Press any key to run: ./albert.alt 1234567890123456789: "
echo 1>&2
./albert.alt 1234567890123456789
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert.alt 12345678987654321: "
echo 1>&2
./albert.alt 12345678987654321
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert.alt 42: "
echo 1>&2
./albert.alt 42
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert.alt 4242424242: "
echo 1>&2
./albert.alt 4242424242
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert.alt 10000000001: "
echo 1>&2
./albert.alt 10000000001
echo 1>&2
1992/albert/try.sh
Executable
+37
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@@ -0,0 +1,37 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1992/albert
#
# make sure CC is set so that when we do make CC="$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 "Press any key to run: ./albert 1234567890123456789: "
echo 1>&2
./albert 1234567890123456789
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert 12345678987654321: "
echo 1>&2
./albert 12345678987654321
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert 42: "
echo 1>&2
./albert 42
echo 1>&2
read -r -n 1 -p "Press any key to run: ./albert 4242424242: "
echo 1>&2
./albert 4242424242
echo 1>&2
1992/ant/README.md
+4 -10
View File
@@ -9,24 +9,18 @@ make all
```sh
./ant Makefile
./ant Makefile rule
```
where `Makefile` is a Makefile to use.
where `Makefile` is a Makefile to use and `rule` is an optional rule to use.
### Try:
First build the tool itself with our Makefile:
```sh
./ant Makefile am
```
Now use `am` to do some things:
```sh
./am Makefile am_clobber # clobber everything except am
./am ant.test.mk # run the test Makefile with am
./try.sh
```
1992/ant/ant.test.mk
+2 -2
View File
@@ -57,7 +57,7 @@ TEXT_2 = test macro split \
three lines
TEXT_3 = test dollar macro '$$'
TEXT_4 = test dollar again "$$(TEXT_1)"
TEXT_5 = imbeded macro '$(TEXT_1)'
TEXT_5 = embedded macro '$(TEXT_1)'
redefine : r1 r2 r3 r4 r5
@@ -161,7 +161,7 @@ leaf.5 :
# Command lines split across lines.
split.cmd:
echo Try spliting command \
echo Try splitting command \
lines across more \
than one line.
1992/ant/try.sh
Executable
+33
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@@ -0,0 +1,33 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1992/ant
#
# 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="$CC" all >/dev/null || exit 1
# clear screen after compilation so that only the entry is shown
clear
echo "$ ./ant Makefile am # build the tool itself" 1>&2
read -r -n 1 -p "Press any key to run: ./ant Makefile am: "
echo 1>&2
./ant Makefile am
echo 1>&2
echo "$ ./am Makefile am_clobber # clobber everything except am" 1>&2
read -r -n 1 -p "Press any key to continue: "
echo 1>&2
./am Makefile am_clobber # clobber everything except am
echo 1>&2
echo "$ ./am ant.test.mk # run the test Makefile with am" 1>&2
read -r -n 1 -p "Press any key to continue: "
echo 1>&2
./am ant.test.mk # run the test Makefile with am
1992/buzzard.2/.gitignore
+2
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@@ -1,9 +1,11 @@
#
# sort with: sort -d -u
buzzard.2
buzzard.2.alt
buzzard.2.orig
*.dSYM
first
first.alt
indent
indent.c
indent.o
1992/buzzard.2/Makefile
+5 -1
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@@ -114,7 +114,7 @@ DATA=
TARGET= ${PROG} first
#
ALT_OBJ= ${PROG}.alt.o
ALT_TARGET= ${PROG}.alt
ALT_TARGET= ${PROG}.alt first.alt
#################
@@ -144,6 +144,10 @@ alt: data ${ALT_TARGET}
${PROG}.alt: ${PROG}.alt.c
${CC} ${CFLAGS} $< -o $@ ${LDFLAGS}
first.alt: ${PROG}.alt
${RM} -f $@
${LN} $< $@
# data files
#
data: ${DATA}
1992/buzzard.2/README.md
+22 -10
View File
@@ -10,8 +10,8 @@ code](#alternate-code) below for details.
## To use:
First, you must make sure that first is made first (even though `make all`
should do it :-) ):
First, you must make sure that `first` is made first (even though `make all`
should make first first :-) ):
```sh
make first
@@ -48,6 +48,13 @@ Sorry, this is third!
```
## Try:
```sh
./try.sh
```
## Alternate code:
This alternate version, [buzzard.2.alt.c](buzzard.2.alt.c), does not contain a
@@ -66,6 +73,12 @@ make alt
Use `buzzard.2.alt` as you would `buzzard.2` above.
### Alternate try:
```sh
./try.alt.sh
```
## Judges' remarks:
Have fun!
@@ -99,8 +112,8 @@ further down.
`first` expects you to first enter the names of the 13 primitives,
separated by whitespace--it doesn't care what you name them, but
if all the names aren't unique, you won't be able to use some of
them. After this you may type any sequence of valid first input.
Valid first input is defined as any sequence of whitespace-delimited
them. After this you may type any sequence of valid `first` input.
Valid `first` input is defined as any sequence of whitespace-delimited
tokens which consist of primitives, new words you've defined, and
integers (as parsed by `"%d"`). Invalid input behaves unpredictably,
but gives no warning messages. A sample program, `demo1.1st`, is
@@ -108,7 +121,7 @@ included, but it only works on ASCII systems.
Do not expect to be able to do anything interesting with `first`.
To do something interesting, you need to feed first the file
To do something interesting, you need to feed `first` the file
[third](third) first. In unix, you can do
```sh
@@ -159,7 +172,7 @@ Other related obfuscations are still present. The top of the stack is cached in
a variable, which increases performance massively if the compiler can figure out
to keep it in a register; it also obfuscates the code. (Unfortunately, the top
of stack is a global variable and neither gcc nor most bundled compilers seem to
register allocate it.)
`register` allocate it.)
More significant are the design obfuscations. `m[0]` is the "dictionary
pointer", used when compiling words, and `m[1]` is the return stack index. Both
@@ -205,15 +218,14 @@ are primitives in
[FORTH](https://en.wikipedia.org/wiki/Forth_(programming_language)) (like swap)
take a significant amount of time in THIRD.
When you get the `Ok.` message from third, try out some sample
[FORTH](https://en.wikipedia.org/wiki/Forth_(programming_language)) code (first
has no way of knowing if keyboard input is waiting, so it can't actually prompt
When you get the `Ok.` message from `third`, try out some sample
[FORTH](https://en.wikipedia.org/wiki/Forth_(programming_language)) code
(`first` has no way of knowing if keyboard input is waiting, so it can't actually prompt
you in a normal way. It only prints `'Ok.'` after you define a word).
```sh
2 3 + . cr
```
(which adds 2 and 3, and print the result and a newline.)
1992/buzzard.2/buzzard.2.alt.c
+1 -1
View File
@@ -17,7 +17,7 @@ a(x)
r(x)
{
switch(x++[m]){
z 5: for(w=scanf("%s",s)<1?exit(0):L;strcmp(s,&w[&m[1]][s]);w=m[w]);
z 5: for(w=scanf("%s",s)<1?exit(0),0:L;strcmp(s,&w[&m[1]][s]);w=m[w]);
w-1 ? r(w+2) : (c 2,c atoi(s))
z 12: I=1[m]--[m]
z 15: f=S[-f]
1992/buzzard.2/help.th
+1 -1
View File
@@ -1,7 +1,7 @@
: help key ( flush the carriage return form the input buffer )
" The following are the standard known words; words marked with (*) are
immediate words, which cannot be used from command mode, but only in
immediate words, which cannot be used in command mode, but only in
word definitions. Words marked by (**) declare new words, so are always
followed by the new word.
1992/buzzard.2/try.alt.sh
Executable
+34
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@@ -0,0 +1,34 @@
#!/usr/bin/env bash
#
# try.alt.sh - demonstrate IOCCC winner 1992/buzzard.2 alt code
#
# 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" alt >/dev/null || exit 1
# clear screen after compilation so that only the entry is shown
clear
echo "$ echo help | cat third help.th - | ./first.alt" 1>&2
read -r -n 1 -p "Press any key to read help (space = next page, q = quit): "
echo 1>&2
echo help | cat third help.th - | ./first.alt | less -rEXF
for i in demo[1-6].th; do
# try out each demo
#
read -r -n 1 -p "Press any key to show $i (space = next page, q = quit): "
echo 1>&2
less -rEXF "$i"
echo 1>&2
read -r -n 1 -p "Press any key to run cat third $i | ./first.alt (demo $i): "
echo 1>&2
cat third "$i" | ./first.alt
echo 1>&2
done
1992/buzzard.2/try.sh
Executable
+34
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@@ -0,0 +1,34 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1992/buzzard.2
#
# 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="$CC" all >/dev/null || exit 1
# clear screen after compilation so that only the entry is shown
clear
echo "$ echo help | cat third help.th - | ./first" 1>&2
read -r -n 1 -p "Press any key to read help (space = next page, q = quit): "
echo 1>&2
echo help | cat third help.th - | ./first | less -rEXF
for i in demo[1-6].th; do
# try out each demo
#
read -r -n 1 -p "Press any key to show $i (space = next page, q = quit): "
echo 1>&2
less -rEXF "$i"
echo 1>&2
read -r -n 1 -p "Press any key to run cat third $i | ./first (demo $i): "
echo 1>&2
cat third "$i" | ./first
echo 1>&2
done
1993/ant/README.md
+1 -3
View File
@@ -25,10 +25,8 @@ For more detailed information see [1993 ant in bugs.md](/bugs.md#1993-ant).
### Try:
You may also want to try the author's test suite:
```sh
make -f ant.test.mk
./try.sh
```
1993/ant/ants.txt
+60
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@@ -0,0 +1,60 @@
The ants go marching one by one, hurrah, hurrah
The ants go marching one by one, hurrah, hurrah
The ants go marching one by one,
The little one stops to suck his thumb
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching two by two, hurrah, hurrah
The ants go marching two by two, hurrah, hurrah
The ants go marching two by two,
The little one stops to tie his shoe
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching three by three, hurrah, hurrah
The ants go marching three by three, hurrah, hurrah
The ants go marching three by three,
The little one stops to climb a tree
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching four by four, hurrah, hurrah
The ants go marching four by four, hurrah, hurrah
The ants go marching four by four,
The little one stops to shut the door
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching five by five, hurrah, hurrah
The ants go marching five by five, hurrah, hurrah
The ants go marching five by five,
The little one stops to take a dive
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching six by six, hurrah, hurrah
The ants go marching six by six, hurrah, hurrah
The ants go marching six by six,
The little one stops to pick up sticks
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching seven by seven, hurrah, hurrah
The ants go marching seven by seven, hurrah, hurrah
The ants go marching seven by seven,
The little one stops to pray to heaven
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching eight by eight, hurrah, hurrah
The ants go marching eight by eight, hurrah, hurrah
The ants go marching eight by eight,
The little one stops to roller skate
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching nine by nine, hurrah, hurrah
The ants go marching nine by nine, hurrah, hurrah
The ants go marching nine by nine,
The little one stops to check the time
And they all go marching down to the ground
To get out of the rain, BOOM! BOOM! BOOM!
The ants go marching ten by ten, hurrah, hurrah
The ants go marching ten by ten, hurrah, hurrah
The ants go marching ten by ten,
The little one stops to shout "The End",
And they all go marching down to the ground
To get out of the rain.
1993/ant/try.sh
Executable
+41
View File
@@ -0,0 +1,41 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1993/ant
#
# 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 "Press any key to run: ./ant ant README.md: "
echo 1>&2
./ant ant README.md
echo 1>&2
read -r -n 1 -p "Press any key to run: ./ant '\[' ant.txt: "
echo 1>&2
./ant '\[' ant.txt
echo 1>&2
echo "Note: the next one should show: ag: Pattern too long." 1>&2
read -r -n 1 -p "Press any key to run: ./ant '[' ant.txt: "
echo 1>&2
./ant '[' ant.txt
echo 1>&2
read -r -n 1 -p "Press any key to run: ./ant ant ants.txt | cut -d: -f2 (space = next page, q = quit): "
echo 1>&2
./ant ant ants.txt | cut -d: -f2 | less -rEXF
echo 1>&2
read -r -n 1 -p "Press any key to run the test suite (make -f ant.test.mk) (space = next page, q = quit): "
echo 1>&2
make -f ant.test.mk | less -rEXF
1993/dgibson/README.md
+3 -2
View File
@@ -19,7 +19,7 @@ where:
### Try:
```sh
./dgibson.sh dgibson.data3
./try.sh
```
@@ -38,7 +38,8 @@ There are a number of data files available:
- [dgibson.data5](dgibson.data5)
For [dgibson.data5](dgibson.data5) you will need a large screen, lots of virtual
memory and lots of time!
memory and lots of time! The [try.sh](try.sh) script will run
[dgibson.sh](dgibson.sh) on all the data files.
Good luck trying to use a debugger on this entry! Life is not
always pretty.
1993/dgibson/dgibson.sh
+10 -2
View File
@@ -1,6 +1,6 @@
#!/bin/sh
#
# dgibson.sh - run the dgibson entry
# dgibson.sh - run the IOCCC winner 1993/dgibson
#
# usage:
# dgibson.sh [data_file]
@@ -45,7 +45,15 @@ fi
# build a new copy of the program
#
rm -f dgibson
make dgibson
# 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="$CC" all >/dev/null || exit 1
# form the next generation
#
1993/dgibson/try.sh
Executable
+17
View File
@@ -0,0 +1,17 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1993/dgibson
#
# we make use of the script dgibson.sh so we don't need to compile it. In any
# event that script rebuilds the program.
if [[ -z "$CC" ]]; then
CC="cc"
fi
for f in dgibson.data[1-5]; do
read -r -n 1 -p "Press any key to run: CC=$CC ./dgibson.sh $f: "
echo 1>&2
CC="$CC" ./dgibson.sh "$f"
echo 1>&2
done
1993/ejb/README.md
+8
View File
@@ -18,6 +18,14 @@ level a value from -128 to 127
```
## Try:
```sh
./try.sh
```
## Judges' remarks:
A negative argument plays the patience puzzle. An argument
1993/ejb/try.sh
Executable
+31
View File
@@ -0,0 +1,31 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1993/ejb
#
# make sure CC is set so that when we do make CC="$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 "Press any key to play the patience puzzle: ./ejb -3: "
echo 1>&2
./ejb -3
echo 1>&2
read -r -n 1 -p "Press any key to play the Tower of Hanoi puzzle: ./ejb 3: "
echo 1>&2
./ejb 3
echo 1>&2
read -r -n 1 -p "Press any key to run: ./ejb 0: "
echo 1>&2
./ejb 0
exit 0
1993/vanb/README.md
+3 -3
View File
@@ -29,9 +29,7 @@ hexadecimal and decimal numbers.
### Try:
```sh
./vanb '1+1'
./vanb '4+4'
./try.sh
```
What happens if you use something other than valid digits?
@@ -63,6 +61,7 @@ The program does no error checking - erroneous expressions will
produce spurious results. Note that unary `-` is an operator. Thus,
decimal `-46` would be entered as `-d46` and not `d-46`.
### What Makes This Program Special:
0. Of course, the fact that the program takes input and produces output in
@@ -86,6 +85,7 @@ format a program which has no explicit control structures (other than `?:`s).
6. Many simple tasks are done many times. I tried to do these differently each
time, to make the program harder to understand.
### How It Works:
It's a recursive descent parser, calling `main()`
1993/vanb/try.sh
Executable
+57
View File
@@ -0,0 +1,57 @@
#!/usr/bin/env bash
#
# try.sh - demonstrate IOCCC winner 1993/vanb
#
# 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="$CC" all >/dev/null || exit 1
# clear screen after compilation so that only the entry is shown
clear
read -r -n 1 -p "Press any key to run: ./vanb '1+1': "
echo 1>&2
./vanb '1+1'
echo 1>&2
read -r -n 1 -p "Press any key to run: ./vanb '4+4': "
echo 1>&2
./vanb '4+4'
echo 1>&2
read -r -n 1 -p "Press any key to run: ./vanb '+(1777-x11)*d2': "
echo 1>&2
./vanb '+(1777-x11)*d2'
echo 1>&2
read -r -n 1 -p "Press any key to run: ./vanb '-(1777-x11)*d2': "
echo 1>&2
./vanb '-(1777-x11)*d2'
echo 1>&2
read -r -n 1 -p "Press any key to run: ./vanb '(1777-xfeed*xdead-xd00d+xf00d)*d2': "
echo 1>&2
./vanb '(1777-xfeed*xdead-xd00d+xf00d)*d2'
echo 1>&2
read -r -n 1 -p "Press any key to run: ./vanb '777+777-111*111/123%155': "
echo 1>&2
./vanb '777+777-111*111/123%155'
echo 1>&2
read -r -n 1 -p "Press any key: ./vanb '777-8': "
echo 1>&2
./vanb '777-8'
echo "... what happened?" 1>&2
read -r -n 1 -p "Press any key to run: ./vanb '777*8': "
echo 1>&2
./vanb '777*8'
echo "... what happened?" 1>&2
exit 0
thanks-for-help.md
+68 -8
View File
@@ -758,6 +758,27 @@ not strictly necessary but nonetheless more correct, even if not warned against.
`$PATH`) to files referred to in the code. The path problem was also fixed in
[fubar.sh](/1989/fubar/fubar.sh).
A strange problem occurred where if one made modifications to the C file it
might end up failing to work even after changing it back. This was resolved by:
```diff
--- i/1989/fubar/fubar.sh
+++ w/1989/fubar/fubar.sh
@@ -7,13 +7,12 @@ if [[ $# -ne 1 ]]; then
exit 1
fi
# run/compile it
rm -f ouroboros.c x1 x
-ex - <<EOF
-r fubar.c
+ex fubar.c <<EOF
8,9j
w ouroboros.c
EOF
chmod +x ouroboros.c
```
Cody also 'modernised' the script to use `bash` and fixed for ShellCheck. The
`if [ .. ]` was changed in the C code as well as the script.
@@ -1406,7 +1427,7 @@ from (`__FILE__`), not `adgrep.c`, as the latter does not exist: `adgrep` is
simply a link to `adrian` as `adgrep` is what the program was submitted as but
the winner is `adrian.c`.
Not fixing the above problem would have also cause the program to crash if no
Not fixing the above problem would have also caused the program to crash if no
arg was specified as the file doesn't exist. In making the above fix, at first
the change to check for a `NULL` file was added. Then it was noticed that the
problem is that `adgrep.c` was an incorrect reference that never existed and it
@@ -1468,6 +1489,11 @@ one must keep the `Y[strlen(Y)-1]='\0';` part and keep it there.
These fixes are complex changes due to the way the program and Makefile generate
the additional tools.
Cody finally added the [try.sh](/1992/adrian/try.sh) script that shows the entry
and some of the tools this entry generates. Unlike other scripts, it does not
clear the screen after compilation so that one can see how the other files are
generated.
## <a name="1992_albert"></a>[1992/albert](/1992/albert/albert.c) ([README.md](/1992/albert/README.md]))
@@ -1475,8 +1501,12 @@ the additional tools.
applied to the code, provided as the alt code as that version is not obfuscated.
Thus Cody's fix applies to the original entry. The problems were that `malloc.h`
is not the correct header file now (at least in some systems?) and a non-void
(implicit int) function returning without a value. That function was changed to
return void.
(implicit `int`) function returning without a value. That function was changed to
return `void`.
Cody also added the [try.sh](/1992/albert/try.sh) and
[try.alt.sh](/1992/albert/try.alt.sh) scripts that correspond to the entry and
the alt code.
## <a name="1992_ant"></a>[1992/ant](/1992/ant/ant.c) ([README.md](/1992/ant/README.md]))
@@ -1484,7 +1514,7 @@ return void.
[Cody](#cody) fixed the Makefile so that the program will actually work with it (or at
least the rule to clobber files and link `am` to `ant`). The issue was that the
variables in the Makefile could not be evaluated in the same way as it's not as
feature-rich as other implementations of `make`. Thus the use of `${RM}` and
feature-rich as other implementations of `make(1)`. Thus the use of `${RM}` and
`${CP}` were in the respective rules changed to `rm` and `cp`, for two examples.
A new rule had to be added as well. The variable situation might be because they
are obtained from the root variable Makefile `var.mk` via `include` which the
@@ -1495,7 +1525,10 @@ Cody also fixed another problem, unrelated, in the Makefile with the `.PHONY`
rule where a line was not ended with a `\` but should have been.
The author stated that in some systems like DOS with Turbo C, it might be
necessary to include `time.h` so Cody did this as well.
necessary to include `time.h` so Cody did this as well as this exists in other
systems too.
Cody also added the [try.sh](/1992/ant/try.sh) script.
## <a name="1992_buzzard.1"></a>[1992/buzzard.1](/1992/buzzard.1/buzzard.1.c) ([README.md](/1992/buzzard.1/README.md))
@@ -1505,8 +1538,18 @@ used. This was not originally done but at a time it was changed to be considered
a bug so it was fixed at that point as it only took a few seconds and had to be
verified that it was consistent with the [bugs.md](/bugs.md) file.
He also added the [try.sh](/1991/buzzard.1/try.sh) script to try out some
commands that we suggested and some additional ones that provide for some fun.
He also added the [try.sh](/1992/buzzard.1/try.sh) script to try out some
commands that we suggested and some additional ones that he provide for some fun.
## <a name="1992_buzzard.2"></a>[1992/buzzard.2](/1992/buzzard.2/buzzard.2.c) ([README.md](/1992/buzzard.2/README.md))
[Cody](#cody) fixed the alt code to compile. The problem was it assumed that
`exit(3)` returns a value, not `void`. This was fixed with a `,0`.
Cody also added the [try.sh](/1992/buzzard.2/try.sh) and
[try.alt.sh](/1992/buzzard.2/try.alt.sh) scripts that correspond to the entry
and its alt code.
## <a name="1992_gson"></a>[1992/gson](/1992/gson/gson.c) ([README.md](/1992/gson/README.md]))
@@ -1660,6 +1703,12 @@ encourage you to try the original without two args :-)
# <a name="1993"></a>1993
## <a name="1993_ant"></a>[1993/ant](/1993/ant/ant.c) ([README.md](/1993/ant/README.md]))
[Cody](#cody) added the [try.sh](/1993/ant/try.sh) script and a data file,
[ants.txt](/1993/ant/ants.txt), full of ants for the script.
## <a name="1993_cmills"></a>[1993/cmills](/1993/cmills/cmills.c) ([README.md](/1993/cmills/README.md]))
[Yusuke](#yusuke) suggested that with modern systems this goes too fast so he added a call
@@ -1670,7 +1719,16 @@ first.
## <a name="1993_dgibson"></a>[1993/dgibson](/1993/dgibson/dgibson.c) ([README.md](/1993/dgibson/README.md]))
[Cody](#cody) fixed the script to work which assumed that `.` is in the path.
[Cody](#cody) fixed the [dgibson.sh](/1993/dgibson/dgibson.sh) script to work
which assumed that `.` is in the path.
Cody also added the [try.sh](/1993/dgibson/try.sh) script which runs the above
mentioned script on all the data files.
## <a name="1993_ejb"></a>[1993/ejb](/1993/ejb/ejb.c) ([README.md](/1993/ejb/README.md]))
[Cody](#cody) added the [try.sh](/1993/ejb/try.sh) script.
## <a name="1993_jonth"></a>[1993/jonth](/1993/jonth/jonth.c) ([README.md](/1993/jonth/README.md]))
@@ -1766,6 +1824,8 @@ but fixed to work with clang as well.
NOTE: the `N1` and `N2` are provided as notes in the README.md file describing
this code. Other code is also described there.
Cody also added the [try.sh](/1993/vanb/try.sh) script.
# <a name="1994"></a>1994