Adding upstream version 3.8.1.upstream/3.8.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

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+# Read Evaluate Print Loop ++
+
+![demo](https://drive.google.com/uc?export=download&id=0B53g2Y3z7rWNT2dCRGVVNldaRnc)
+
+[![Build Status](https://travis-ci.org/AmokHuginnsson/replxx.svg?branch=master)](https://travis-ci.org/AmokHuginnsson/replxx)
+
+A small, portable GNU readline replacement for Linux, Windows and
+MacOS which is capable of handling UTF-8 characters. Unlike GNU
+readline, which is GPL, this library uses a BSD license and can be
+used in any kind of program.
+
+## Origin
+
+This replxx implementation is based on the work by
+[ArangoDB Team](https://github.com/arangodb/linenoise-ng) and
+[Salvatore Sanfilippo](https://github.com/antirez/linenoise) and
+10gen Inc.  The goal is to create a zero-config, BSD
+licensed, readline replacement usable in Apache2 or BSD licensed
+programs.
+
+## Features
+
+* single-line and multi-line editing mode with the usual key bindings implemented
+* history handling
+* completion
+* syntax highlighting
+* hints
+* BSD license source code
+* Only uses a subset of VT100 escapes (ANSI.SYS compatible)
+* UTF8 aware
+* support for Linux, MacOS and Windows
+
+It deviates from Salvatore's original goal to have a minimal readline
+replacement for the sake of supporting UTF8 and Windows. It deviates
+from 10gen Inc.'s goal to create a C++ interface to linenoise. This
+library uses C++ internally, but to the user it provides a pure C
+interface that is compatible with the original linenoise API.
+C interface.
+
+## Requirements
+
+To build this library, you will need a C++11-enabled compiler and
+some recent version of CMake.
+
+## Build instructions
+
+### *nix
+
+1. Create a build directory
+
+```bash
+mkdir -p build && cd build
+```
+
+2. Build the library
+
+```bash
+cmake -DCMAKE_BUILD_TYPE=Release .. && make
+```
+
+3. Install the library at the default target location
+
+```bash
+sudo make install
+```
+
+The default installation location can be adjusted by setting the `DESTDIR`
+variable when invoking `make install`:
+
+```bash
+make DESTDIR=/tmp install
+```
+
+### Windows
+
+1. Create a build directory in MS-DOS command prompt
+
+```
+md build
+cd build
+```
+
+2. Generate Visual Studio solution file with cmake
+
+* 32 bit: 
+```bash
+cmake -G "Visual Studio 12 2013" -DCMAKE_BUILD_TYPE=Release ..`
+```
+* 64 bit:
+```bash
+`cmake -G "Visual Studio 12 2013 Win64" -DCMAKE_BUILD_TYPE=Release ..`
+```
+
+3. Open the generated file `replxx.sln` in the `build` subdirectory with Visual Studio.
+
+## Tested with...
+
+ * Linux text only console ($TERM = linux)
+ * Linux KDE terminal application ($TERM = xterm)
+ * Linux xterm ($TERM = xterm)
+ * Linux Buildroot ($TERM = vt100)
+ * Mac OS X iTerm ($TERM = xterm)
+ * Mac OS X default Terminal.app ($TERM = xterm)
+ * OpenBSD 4.5 through an OSX Terminal.app ($TERM = screen)
+ * IBM AIX 6.1
+ * FreeBSD xterm ($TERM = xterm)
+ * ANSI.SYS
+ * Emacs comint mode ($TERM = dumb)
+ * Windows
+
+Please test it everywhere you can and report back!
+
+## Let's push this forward!
+
+Patches should be provided in the respect of linenoise sensibility for
+small and easy to understand code that and the license
+restrictions. Extensions must be submitted under a BSD license-style.
+A contributor license is required for contributions.
+