Updates to 1996/huffman - format + bugs + try.sh

The try.sh script runs the commands in the try section. It does not run
the spoiler command in the judges' remarks as that didn't feel like a
good idea.

The README.md has been typo and format checked.

Added to bugs.md to try and change to use fgets(3). In the meantime it
uses 2>/dev/null.

1996/huffman/Makefile

@@ -62,7 +62,7 @@ CDEFINE=
 
 # Include files that are needed to compile
 #
-CINCLUDE=
+CINCLUDE= -include stdio.h
 
 # Optimization
 #

1996/huffman/README.md

@@ -5,22 +5,28 @@ make all
 ```
 
 
+### Bugs and (Mis)features:
+
+The current status of this entry is:
+
+```
+STATUS: uses gets() - change to fgets() if possible
+```
+
+For more detailed information see [1996 huffman in bugs.md](/bugs.md#1996-huffman).
+
+
 ## To use:
 
 ```sh
 echo 'Huffman Decoding' | ./huffman
 ```
 
-NOTE: this program uses `gets()` so you will likely get a warning when compiling
-and/or running on modern systems.
-
 
 ### Try:
 
 ```sh
-echo 'seeing or feeling is believing' | ./huffman
-echo 'CC OR NOT CC' | ./huffman
-echo 'CC OR NOT CC' | ./huffman | ./huffman
+./try.sh
 ```
 
 
@@ -34,7 +40,7 @@ And for a misleading hint, consider who won!  :-)
 And if you really can't see what is going on, here is an extra spoiler:
 
 ```sh
-./huffman < huffman.c
+./huffman < huffman.c 2>/dev/null
 ```
 
 This entry was very well received at the IOCCC BOF.
@@ -46,7 +52,7 @@ This filter program is really not obfuscated code.  It compiles cleanly
 with an ANSI C compiler and comes with user documentation that even a
 blind person could read.
 
-The program is a bidirectional filter with the output of the program\
+The program is a bidirectional filter with the output of the program
 suitable for its input.  The output of this program, when used as input,
 undoes the original program filtering.
 

1996/huffman/try.sh

@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+
+make all >/dev/null || exit 1
+
+
+echo "$ echo 'seeing or feeling is believing' | ./huffman" 1>&2
+echo 'seeing or feeling is believing' | ./huffman 2>/dev/null
+
+echo "$ echo 'CC OR NOT CC' | ./huffman" 1>&2
+echo 'CC OR NOT CC' | ./huffman 2>/dev/null
+
+echo "$ $ echo 'CC OR NOT CC' | ./huffman | ./huffman" 1>&2
+echo 'CC OR NOT CC' | ./huffman 2>/dev/null | ./huffman 2>/dev/null

bugs.md

@@ -1382,6 +1382,47 @@ it was instead requiring a login / password.
 Do you have an updated link? We welcome your help!
 
 
+## 1996 huffman
+
+### STATUS: uses gets() - change to fgets() if possible
+### Source code: [1996/huffman/huffman.c](1996/huffman/huffman.c)
+### Information: [1996/huffman/README.md](1996/huffman/README.md)
+
+The changing to using `fgets(3)` in this entry is a bit more complicated. It can
+almost be done except that some of the output of the
+[try.sh](1996/huffman/try.sh) is wrong, especially the last one.
+
+This diff almost does it but not quite:
+
+```diff
+diff --git i/1996/huffman/huffman.c w/1996/huffman/huffman.c
+index a5745bc7f4fa28b834c004f4cf19633e40ad9165..5e5e5334f33f9dbd95c70eddece3189d9bcff5e9 100644
+--- i/1996/huffman/huffman.c
++++ w/1996/huffman/huffman.c
+@@ -1,15 +1,16 @@
+ #define x char
+ #define z else
+ #define w gets
++#define gets(b) ((b)[0]='\0',(fgets((b), 100, stdin)))
+ #define r if
+ #define u int
+ #define s main
+ #define v putchar
+ #define y while
+ #define t " A?B?K?L?CIF?MSP?E?H?O?R?DJG?NTQ?????U?V?????X???????Z????W??Y??"
+- s (   )  {   x* c  ,  b[ 5  * 72   ]; u  a, e  ,  d   [  9
++ s (   )  {   x* c  ,  b[ 5  * 72  ]; u  a, e  ,  d   [  9
+ *9 *9 ]  ;    y  (w  ( b) ){            r  ( 0   [ b] -7 *
+ 5        )    {  c  =     b    ;       y  (  (*    c  -  6
+ * 7 )* *  c )c =  c+ 1  ;   r ((   -0 )  [ c  ] &&  w (  b   +
+   8 *  5*    3        ) && w          (b   +8      *5  * 6) )
+   { a       =  0; y     (                  a       [     b  ]
+```
+
+But since it does not for the time being it is advisable to just redirect stderr
+to /dev/null (`2>/dev/null`).
+
+
 ## 1996 jonth
 
 ### STATUS: INABIAF - please **DO NOT** fix

thanks-for-fixes.md

@@ -1971,6 +1971,12 @@ either different output or the same output that we briefly pointed out.
 BTW: it is perilous to try the patience of
 [Gandalf](https://www.glyphweb.com/arda/g/gandalf.html). Go ahead, try it! :-)
 
+
+## [1996/huffman](1996/huffman/huffman.c) ([README.md](1996/huffman/README.md]))
+
+Cody added the [try.sh](1996/huffman/try.sh) script.
+
+
 ## [1996/jonth](1996/jonth/jonth.c) ([README.md](1996/jonth/README.md]))
 
 Cody fixed this to not segfault under macOS. The problem was that the function