Merge pull request #1030 from xexyl/2013-endoh4

Format and typo fix 2013/endoh4/README.md

2013/dlowe/README.md

@@ -25,6 +25,7 @@ make
 ./dlowe 16 32 64 128 256
 ./dlowe 16 32 64 128 256 512
 
+
 ./dlowe 0 
 
 echo "sparkline of file sizes: $(wc -c * | awk '{print $1}' | xargs ./dlowe)" # or ./slen.sh

2013/endoh4/README.md

@@ -14,28 +14,35 @@ make
 ## To run:
 
 ```sh
-./endoh4
+./endoh4 < file
+./run.sh file
 ```
 
+The second form is preferable as it will temporarily make the cursor invisible
+as recommended by the author. If no file is specified in `run.sh` command line
+it will feed to the program [endoh4.c](endoh4.c).
+
 ## Try:
 
 ```sh
-./endoh4 < cube.txt
+./run.sh cube.txt
 ```
 
+Hit ctrl-c to end the program.
+
 The author recommends the use of xterm.
 
-For example, if you are a soccer fan, try:
+For an example, if you are a football/soccer fan, try:
 
 ```sh
-./endoh4 < solids/archimedian-solid/a11-truncated-icosahedron.txt
+./run.sh solids/archimedian-solid/a11-truncated-icosahedron.txt
 ```
 
 ## Judges' remarks:
 
-This program is formatted as the net for a tetrahedron. (hint, try feeding the
-program it's own source code).  When it runs there is an animation for the
-computation to work out the convex hull.
+This program is formatted as the net for a tetrahedron (hint: try feeding the
+program it's own source code like `./run.sh`).  When it runs there is an
+animation for the computation to work out the convex hull.
 
 ## Author's remarks:
 
@@ -43,7 +50,7 @@ computation to work out the convex hull.
 
 This is a convex polyhedron viewer, which:
 
-1. reads three-dimentional vertices (3N float values) from stdin,
+1. reads three-dimensional vertices (3N float values) from `stdin`,
 2. calculates a convex hull of them, and
 3. renders it.
 
@@ -51,8 +58,8 @@ This simple spec involves many details.
 
 * 3D convex hull calculation
   * recursive gift wrapping algorithm
-  * automatical merging of (almost) co-planar faces
-    (i.e., faces are not triangulated)
+  * automatic merging of (almost) co-planar faces (i.e., faces are not
+  triangulated)
   * random perturbation for robustness
 * 3D rendering
   * perspective projection
@@ -63,13 +70,12 @@ This simple spec involves many details.
 
 ### Portability
 
-I think it conforms with both C89 and C99.
-I confirmed that it worked on gcc, clang, and tcc.
-It should not be warned with -pedantic and -Wextra.
+I think it conforms with both C89 and C99.  I confirmed that it worked on gcc,
+clang, and tcc.  It should not be warned with `-pedantic` and `-Wextra`.
 
 ### Tips
 
-You may want to use `tput` to hide a terminal cursor.
+You may want to use `tput` to hide the terminal cursor.
 
 ```sh
 tput civis
@@ -77,6 +83,12 @@ tput civis
 tput cnorm
 ```
 
+or
+
+```sh
+./run.sh cube.txt
+```
+
 ### Bonuses
 
 You can change the screen size.  Let the aspect ratio be about 3:1.
@@ -89,24 +101,24 @@ The shape of this code is the geometric net of a regular tetrahedron.
 So, try:
 
 ```sh
-./endoh4 < endoh4.c
+./endoh4 < endoh4.c # or ./run.sh
 ```
 
-The solids.tbz2 file includes various solid data:
-[Platonic solids](http://en.wikipedia.org/wiki/Platonic_solid),
-[Archimedean solids](http://en.wikipedia.org/wiki/Archimedean_solid),
-[Prisms](http://en.wikipedia.org/wiki/Prism_%28geometry%29),
-[Antiprisms](http://en.wikipedia.org/wiki/Antiprism),
-[Bipyramids](http://en.wikipedia.org/wiki/Bipyramid),
-[Trapezohedrons](http://en.wikipedia.org/wiki/Trapezohedron), and
-[Johnson solids](http://en.wikipedia.org/wiki/Johnson_solid).
+The [solids/](solids/) directory includes various solid data:
+
+- [Platonic solids](http://en.wikipedia.org/wiki/Platonic_solid)
+- [Archimedean solids](http://en.wikipedia.org/wiki/Archimedean_solid)
+- [Prisms](http://en.wikipedia.org/wiki/Prism_%28geometry%29)
+- [Antiprisms](http://en.wikipedia.org/wiki/Antiprism)
+- [Bipyramids](http://en.wikipedia.org/wiki/Bipyramid)
+- [Trapezohedrons](http://en.wikipedia.org/wiki/Trapezohedron)
+- [Johnson solids](http://en.wikipedia.org/wiki/Johnson_solid)
 
 I created the files by using the POV-Ray scripts
 ([1](http://en.wikipedia.org/wiki/File:Poly.pov) and
- [2](http://en.wikipedia.org/wiki/User:AndrewKepert/poly.pov))
-in Wikipedia.
-They are copyrighted in CC BY-SA 3.0
-by "User:Cyp" and "User:AndrewKepert".
+[2](http://en.wikipedia.org/wiki/User:AndrewKepert/poly.pov)) in Wikipedia.
+They are copyrighted in CC BY-SA 3.0 by "User:Cyp" and "User:AndrewKepert".
+
 
 ## Copyright and CC BY-SA 4.0 License:
 

2013/endoh4/run.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+make all || exit 1
+
+# set it so that when program is terminated through various signals we re-enable
+# the cursor
+trap "tput cnorm;echo" 0 1 2 3 15
+
+# temporarily disable cursor
+tput civis
+
+# run program attempting to feed it a file, if specified
+if [[ "$#" -eq 1 ]]; then
+    ./endoh4 < "$1"
+else
+    # otherwise feed the source code of the program to the program
+    ./endoh4 < endoh4.c
+fi
+
+# explicitly set cursor back just in case it's not terminated through one of the
+# above signals
+tput cnorm

thanks-for-fixes.md

@@ -1630,6 +1630,15 @@ Cody also added the [demo.sh](2013/dlowe/demo.sh) script to more easily try the
 program.
 
 
+## [2013/endoh4](2013/endoh4/endoh4.c) ([README.md](2013/endoh4/README.md))
+
+Cody added the [run.sh](2013/endoh4/run.sh) script which temporarily turns off
+the cursor as suggested by the author, with the addition that if no file is
+specified it will feed the source code [endoh4.c](2013/endoh4/endoh4.c) to the
+program rather than the file specified. It does not try and detect if the file
+exists or can be read as that will be handled by the shell/program.
+
+
 ## [2013/hou](2013/hou/hou.c) ([README.md](2013/hou/README.md))
 
 After the file 2013/hou/doc/example.markdown was moved to