cmatrix fonts doesnot work inside terminals, the configure.ac file has
been modified to include a change which will inturn add an optional
parameter for configure to disable installing the fonts.

Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Fixes window resize problem, earlier when the terminal window was
resized to a size lesser than 3, a null pointer exception was invoked.

Rainbow mode support gives users the choice of displaying the
matrix in different colors using the -r option.

Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Code of conduct will help to facilitate healthy and constructive community
behavior. It will also protect the developers and users of this project.

This doc is recommended by Github.
Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Fixes bugs caused due to the disabling of matrix fonts option provided
by commit:2869565.

Adds a conditional variable (MATRIX_FONTS) whose value becomes true or
false depending on whether enable_fonts variable has true as it's
value which in turn depends whether the user has passed the
--without-fonts flag. (enable_font is true if --without-fonts flag is
not passed along with configure). The value of MATRIX_FONTS is checked
in Makefile.am and another variable BUILD_FONTS to 0 or 1.
install-data-local in Makefile.am checks for BUILD_FONTS and installs
fonts if BUILD_FONTS is set to 1.

The outermost if condition in the Makefile
requires to be prefixed with a @ symbol.
make simply prints out the entire function
even though it executes the function fine.

Readme.md file contained a typo, removes it.

Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

This allows for easy copy&paste of build instructions,
and also generates nice output with pandoc now.
You may test that with:

    pandoc -f markdown -t HTML README.md > README.html

use like this:

	mkdir -p build
	cd build
	cmake ..
	# or
    	#cmake -DCMAKE_INSTALL_PREFIX=/usr ..
	make

Removes outdated information from Readme.md.
Add code syntax markers and fixes minor typos

Adds a script to generate screenshots and screencasts.
Integrated two of such screenshots into the readme.

Adds compiler information to .Travis.yml so
that Travis compiles files with Clang as well.

If a user tries to run the commands as it is given it throws an error. 
bash: ./make: No such file or directory

Removes "./" from the commands in readme.md

Fixes the wrong sizeof in matrix allocation.
Also improves the allocation strategy for the matrix,
it allocates one contiguous array instead of allocating row by row.

Properly free the matrix on reallocation.
Fixes the memory leak on screen size change.

Fixes uninitialized use of the bold attribute in the matrix
by setting a default value of 0 in var_init().

The signal handlers were not safe.
This commit moves the handling logic outside the handler functions and
makes the handler set a global variable to indicate caught signals.

Adds CMake build system support

Fixed Travis CI build by touching the aclocal file so that the timestamp gets updated.

Remove autotools generated files

match installation instruction described in README

That is running configure in repo root, which is also convention.

Also reshaping the script for a bit of readability.

* remove autoheader generated config.h.in and ignore cmatrix.spec

They are missed in 5cfe816.

* merge acconfig.h into configure.ac

Per the following warning:

    autoheader-2.69: WARNING: Using auxiliary files such as `acconfig.h', `config.h.bot'
    autoheader-2.69: WARNING: and `config.h.top', to define templates for `config.h.in'
    autoheader-2.69: WARNING: is deprecated and discouraged.

There is a difference in using `AH_TEMPLATE` inside `configure.ac` than
an `acconfig.h`, the generated `config.h.in` won't have the five keys in
beginning of the file, they are sorted and listed among all the keys,
instead.

See also GH #18.

Only when `-f` force `TERM=linux` is used and there was a change of
`$TERM`.

Since, the forcing the TERM uses `putenv(3)`, replaced `system(3)` call
to be consistent and to get rid of compilation warning of ignoring the
return value.

Note: using `setenv(3)` is cleaner, as we only needs to keep preserved
TERM value, no need to format a `"TERM=foobar"` string.  However, as the
comment L388 stated that `putenv` is more common on non-Linux, so
keeping this way.

* add osx builds on Travis CI

* check headers in CMake and only include either of termios.h or termio.h

CMake builds failed on basically 93fd357 [1] on OS X since termio.h
isn't present.

[1]: https://travis-ci.org/livibetter/cmatrix/builds/337114240

cmatrix.c do not need to include both termios.h and termio.h, the latter
is a wrapper on Linux, on POSIX, the former would do.

CMake should check the header files, not defining blindly, although it's
not needed as now cmatrix.c only includes one of the headers, however,
it's a good practice, but it should also halt the build process if
neither is found.

This partially undoes commit 66a0be3 ("`va_system()`: rename buffer
variable and make buffer size a variable"). The size of the buffer can
be determined using the sizeof keyword.

Furthermore, it is not necessary to subtract 1 from the size. From the
manual page: "The functions snprintf() and vsnprintf() write at most
size bytes (including the terminating null byte ('\0')) to str."

On UNIXoids, environment variables are process-local and destroyed when
a process exits. Thus the code at the end of main that tries to restore
TERM to its previous value can never have had the desired effect.

Even after this change, running cmatrix -f does not set TERM=linux for
the calling shell.

putenv was the old standard. Now setenv has also made it's way to the
set of UNIX standards. Considering the current buggy nature of putenv
doing a migration to setenv.

Fixes #38

Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Adds .R to facilitate integration of rultor.

Adds cmake generated build files and local cache to .gitignore so that
it would not be tracked by git.

Fixes #52
Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Simplifies and beautifies the process which implements multiple levels
of boldness to the text in cmatrix.

Fixes #53
Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Added an option to lock computer

New feature: Lambda mode

Fix c_die function, now it prints msg.
Remove spaces at the end of lines.
Remove redundant srand(...) usage.

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

This should resolve issue #25 (exit on first keystroke should print the keystroke on the terminal).

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

Small cmatrix.c fixes

Resolve issue #25

Fixes #70 (-B (all bold) option does not work.)

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

Fix typo.
The case when we don't have both "setfont" and "consolechars" is considered.

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

Small fixes about -l option

Fix #70 (-B (all bold) option does not work.)

Fixes #68 (First symbol in a drawing line is green like others)

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

Signed-off-by: Andrey Abramov <st5pub@yandex.ru>

Fixes #68 (First symbol in a drawing line is green like others)

Adds classic mode which can be invoked with "c", which uses Japanese
characters instead of the regular English characters that cmatrix
outputed earlier. Done to match up with the original matrix.

The starting, ending, and range for randum number (corresponding to the
unicode character) is modified to suite the Japanese character range.
Requires appropriate Japanese fonts to make it work.

Fixes #57
Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Modifies code to calculate randnum from values of highnum and randmin
which are used for matrix randum unicode generation. The last
implementation contained hardcoded values.

Signed-off-by: Abishek V Ashok <abishekvashok@gmail.com>

Adds support for japanese characters