From 7595e3f905347bd1f79189b7cf1881761aecb9b8 Mon Sep 17 00:00:00 2001
From: AnErrupTion <anerruption@disroot.org>
Date: Thu, 15 Jun 2023 14:09:57 +0200
Subject: [PATCH] Add projects

---
 dep/argoat/.gitignore                         |   2 +
 dep/argoat/license.md                         |  13 +
 dep/argoat/makefile                           |  44 +
 dep/argoat/readme.md                          | 129 +++
 dep/argoat/src/argoat.c                       | 234 +++++
 dep/argoat/src/argoat.h                       |  36 +
 dep/argoat/sub/testoasterror/.gitignore       |   2 +
 dep/argoat/sub/testoasterror/license.md       |  13 +
 dep/argoat/sub/testoasterror/makefile         |  39 +
 dep/argoat/sub/testoasterror/readme.md        |  79 ++
 .../sub/testoasterror/src/testoasterror.c     | 155 +++
 .../sub/testoasterror/src/testoasterror.h     |  41 +
 dep/argoat/sub/testoasterror/tests/main.c     |  24 +
 dep/argoat/sub/testoasterror/tests/tests.c    |  34 +
 dep/argoat/test/argoat_sample_1.c             |  42 +
 dep/argoat/test/argoat_sample_2.c             |  54 ++
 dep/argoat/test/argoat_sample_3.c             |  72 ++
 dep/argoat/test/main.c                        |  22 +
 dep/argoat/test/tests.c                       |  80 ++
 dep/configator/.gitignore                     |   2 +
 dep/configator/license.md                     |  13 +
 dep/configator/makefile                       |  41 +
 dep/configator/readme.md                      |  95 ++
 dep/configator/res/test.ini                   |  37 +
 dep/configator/src/configator.c               | 309 ++++++
 dep/configator/src/configator.h               |  35 +
 dep/configator/src/example.c                  |  71 ++
 dep/dragonfail/example/dragonfail_error.h     |  22 +
 dep/dragonfail/example/example.c              |  46 +
 dep/dragonfail/license.md                     |  13 +
 dep/dragonfail/makefile                       |  49 +
 dep/dragonfail/readme.md                      |  77 ++
 dep/dragonfail/src/dragonfail.c               | 106 +++
 dep/dragonfail/src/dragonfail.h               |  22 +
 dep/dragonfail/src/dragonfail_private.h       |  14 +
 dep/termbox_next/.gitignore                   |   7 +
 dep/termbox_next/license                      |  19 +
 dep/termbox_next/makefile                     |  40 +
 dep/termbox_next/readme.md                    |  57 ++
 dep/termbox_next/src/demo/keyboard.c          | 827 ++++++++++++++++
 dep/termbox_next/src/demo/makefile            |  30 +
 dep/termbox_next/src/demo/output.c            | 156 +++
 dep/termbox_next/src/demo/paint.c             | 183 ++++
 dep/termbox_next/src/demo/truecolor.c         |  69 ++
 dep/termbox_next/src/input.c                  | 319 +++++++
 dep/termbox_next/src/memstream.c              |  36 +
 dep/termbox_next/src/memstream.h              |  20 +
 dep/termbox_next/src/ringbuffer.c             | 195 ++++
 dep/termbox_next/src/ringbuffer.h             |  26 +
 dep/termbox_next/src/term.c                   | 412 ++++++++
 dep/termbox_next/src/term.h                   |  38 +
 dep/termbox_next/src/termbox.c                | 885 ++++++++++++++++++
 dep/termbox_next/src/termbox.h                | 307 ++++++
 dep/termbox_next/src/utf8.c                   | 106 +++
 dep/termbox_next/tools/astylerc               |  27 +
 dep/termbox_next/tools/collect_terminfo.py    | 108 +++
 56 files changed, 5934 insertions(+)
 create mode 100644 dep/argoat/.gitignore
 create mode 100644 dep/argoat/license.md
 create mode 100644 dep/argoat/makefile
 create mode 100644 dep/argoat/readme.md
 create mode 100644 dep/argoat/src/argoat.c
 create mode 100644 dep/argoat/src/argoat.h
 create mode 100644 dep/argoat/sub/testoasterror/.gitignore
 create mode 100644 dep/argoat/sub/testoasterror/license.md
 create mode 100644 dep/argoat/sub/testoasterror/makefile
 create mode 100644 dep/argoat/sub/testoasterror/readme.md
 create mode 100644 dep/argoat/sub/testoasterror/src/testoasterror.c
 create mode 100644 dep/argoat/sub/testoasterror/src/testoasterror.h
 create mode 100644 dep/argoat/sub/testoasterror/tests/main.c
 create mode 100644 dep/argoat/sub/testoasterror/tests/tests.c
 create mode 100644 dep/argoat/test/argoat_sample_1.c
 create mode 100644 dep/argoat/test/argoat_sample_2.c
 create mode 100644 dep/argoat/test/argoat_sample_3.c
 create mode 100644 dep/argoat/test/main.c
 create mode 100644 dep/argoat/test/tests.c
 create mode 100644 dep/configator/.gitignore
 create mode 100644 dep/configator/license.md
 create mode 100644 dep/configator/makefile
 create mode 100644 dep/configator/readme.md
 create mode 100644 dep/configator/res/test.ini
 create mode 100644 dep/configator/src/configator.c
 create mode 100644 dep/configator/src/configator.h
 create mode 100644 dep/configator/src/example.c
 create mode 100644 dep/dragonfail/example/dragonfail_error.h
 create mode 100644 dep/dragonfail/example/example.c
 create mode 100644 dep/dragonfail/license.md
 create mode 100644 dep/dragonfail/makefile
 create mode 100644 dep/dragonfail/readme.md
 create mode 100644 dep/dragonfail/src/dragonfail.c
 create mode 100644 dep/dragonfail/src/dragonfail.h
 create mode 100644 dep/dragonfail/src/dragonfail_private.h
 create mode 100644 dep/termbox_next/.gitignore
 create mode 100644 dep/termbox_next/license
 create mode 100644 dep/termbox_next/makefile
 create mode 100644 dep/termbox_next/readme.md
 create mode 100644 dep/termbox_next/src/demo/keyboard.c
 create mode 100644 dep/termbox_next/src/demo/makefile
 create mode 100644 dep/termbox_next/src/demo/output.c
 create mode 100644 dep/termbox_next/src/demo/paint.c
 create mode 100644 dep/termbox_next/src/demo/truecolor.c
 create mode 100644 dep/termbox_next/src/input.c
 create mode 100644 dep/termbox_next/src/memstream.c
 create mode 100644 dep/termbox_next/src/memstream.h
 create mode 100644 dep/termbox_next/src/ringbuffer.c
 create mode 100644 dep/termbox_next/src/ringbuffer.h
 create mode 100644 dep/termbox_next/src/term.c
 create mode 100644 dep/termbox_next/src/term.h
 create mode 100644 dep/termbox_next/src/termbox.c
 create mode 100644 dep/termbox_next/src/termbox.h
 create mode 100644 dep/termbox_next/src/utf8.c
 create mode 100644 dep/termbox_next/tools/astylerc
 create mode 100755 dep/termbox_next/tools/collect_terminfo.py

diff --git a/dep/argoat/.gitignore b/dep/argoat/.gitignore
new file mode 100644
index 0000000..1746e32
--- /dev/null
+++ b/dep/argoat/.gitignore
@@ -0,0 +1,2 @@
+bin
+obj
diff --git a/dep/argoat/license.md b/dep/argoat/license.md
new file mode 100644
index 0000000..5c93f45
--- /dev/null
+++ b/dep/argoat/license.md
@@ -0,0 +1,13 @@
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/dep/argoat/makefile b/dep/argoat/makefile
new file mode 100644
index 0000000..85de37a
--- /dev/null
+++ b/dep/argoat/makefile
@@ -0,0 +1,44 @@
+NAME = test
+CC = gcc
+FLAGS = -std=c99 -pedantic -g
+FLAGS+= -Wall -Wextra -Werror=vla -Werror -Wno-unused-parameter
+
+BIND = bin
+OBJD = obj
+SUBD = sub
+SRCD = src
+TEST = test
+
+BINS = $(BIND)/argoat_sample_1
+BINS+= $(BIND)/argoat_sample_2
+BINS+= $(BIND)/argoat_sample_3
+
+INCL = -I$(SRCD) -I$(SUBD)/testoasterror/src
+DEP = $(SUBD)/testoasterror/src/testoasterror.h
+
+$(OBJD)/%.o: %.c
+	@echo "building object $@"
+	@mkdir -p $(@D)
+	@$(CC) $(INCL) $(FLAGS) -c -o $@ $<
+
+all: $(DEP) $(BINS) $(BIND)/$(NAME)
+
+$(DEP):
+	@git submodule update --init --recursive
+
+$(BIND)/argoat_sample_%: $(OBJD)/$(SRCD)/argoat.o $(OBJD)/$(TEST)/argoat_sample_%.o
+	@echo "compiling executable $@"
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LINK)
+
+$(BIND)/$(NAME): $(OBJD)/$(TEST)/main.o $(OBJD)/$(SUBD)/testoasterror/src/testoasterror.o
+	@echo "compiling executable $@"
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LINK)
+
+run:
+	@cd $(BIND) && ./$(NAME)
+
+clean:
+	@echo "cleaning"
+	@rm -rf $(BIND) $(OBJD)
diff --git a/dep/argoat/readme.md b/dep/argoat/readme.md
new file mode 100644
index 0000000..075cbe2
--- /dev/null
+++ b/dep/argoat/readme.md
@@ -0,0 +1,129 @@
+# Argoat
+Argoat is a lightweight library for command-line options parsing.
+This was created because most of the existing solutions rely heavily on macros,
+and all of them expect you to write a giant switch to handle the given options.
+
+Argoat allows you to deal with arguments using function pointers.
+It does not use any macro, switch, or dynamic memory allocation.
+
+Argoat supports the following syntaxes:
+ - simple options    `test -a -b`
+ - compound options  `test -ab`
+ - assigned options  `test -c=4 -d 2`
+ - long options      `test --code 4 --den 2`
+ - lone dash         `test --oki - --den 2`
+ - lone double-dash  `test --oki -- --doki`
+ - unflagged options `test 0 -c=4 1 -d=2 3`
+ - limited params    `test 0 -c 4 1 -d 2 3`
+
+Argoat does not support the following syntaxes *on purpose*:
+ - simple neighbours `test -a4`
+ - custom symbols    `test +a 4`
+
+All of that in around 200 lines of code (getopt has approximately 700).
+Don't be shy, sneak a goat in your code.
+
+## Cloning
+Clone with `--recurse-submodules` to get the required submodules.
+
+## Testing
+Run `make` to compile the testing suite, and `make run` to perform the tests.
+
+## Using
+### TL;DR
+```
+#include "argoat.h"
+#include <stdbool.h>
+#include <stdio.h>
+
+void handle_main(void* data, char** pars, const int pars_count)
+{
+}
+
+void handle_bool(void* data, char** pars, const int pars_count)
+{
+	*((bool*) data) = true;
+}
+
+int main(int argc, char** argv)
+{
+	bool data1 = false;
+	char* unflagged[23];
+
+	const struct argoat_sprig sprigs[2] =
+	{
+		{NULL, 0, NULL, handle_main},
+		{"t", 0, (void*) &data1, handle_bool}
+	};
+
+	struct argoat args = {sprigs, 2, unflagged, 0, 23};
+	argoat_graze(&args, argc, argv);
+	printf("%c\n", data1 ? '1' : '0');
+
+	return 0;
+}
+```
+
+### Details
+Include `argoat.h` and compile `argoat.c` with your code.
+
+Write the functions that will handle your parameters.
+They will be called during the parsing process, in the order given by the user
+```
+void handle_main(void* data, char** pars, const int pars_count)
+{
+}
+
+void handle_bool(void* data, char** pars, const int pars_count)
+{
+	*((bool*) data) = true;
+}
+```
+
+In your `int main(int argc, char** argv)`, declare the variables to configure.
+They will be passed to the corresponding functions as `void* data`
+```
+bool data1 = false;
+```
+
+Also declare an array of strings to store the unflagged arguments.
+Just choose a size corresponding to the maximum number of unflagged arguments
+your program supports, or create a null pointer if it does not use them.
+```
+char* unflagged[UNFLAGGED_MAX];
+```
+
+Then, declare an array of flag structures.
+The first entry only has to contain the unflagged-arguments handling function.
+The others must specify:
+ - the name of the flag (one char for '-' prefix, multiple chars for '--')
+ - the maximum number of arguments supported by this flag
+ - a pointer to the data that has to be configured by the handling function
+ - a pointer to the handling function
+```
+const struct argoat_sprig sprigs[2] =
+{
+	{NULL, 0, NULL, handle_main},
+	{"t", 0, (void*) &data1, handle_bool}
+};
+```
+
+Then, create the main argoat structure given:
+ - the flags array
+ - its size,
+ - the unflagged string buffer
+ - the initial number of unflagged arguments
+ - the maximum possible
+```
+struct argoat args = {sprigs, 2, unflagged, 0, UNFLAGGED_MAX};
+```
+
+All that remains to do is calling the parsing function
+```
+argoat_graze(&args, argc, argv);
+```
+
+And using the configured data
+```
+printf("%c\n", data1 ? '1' : '0');
+```
diff --git a/dep/argoat/src/argoat.c b/dep/argoat/src/argoat.c
new file mode 100644
index 0000000..7a48d48
--- /dev/null
+++ b/dep/argoat/src/argoat.c
@@ -0,0 +1,234 @@
+#include "argoat.h"
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+// executes the function for unflagged pars
+void argoat_unflagged_sacrifice(const struct argoat* args)
+{
+	args->sprigs[0].func(args->sprigs[0].data,
+		args->unflagged,
+		args->unflagged_count);
+}
+
+// returns 1 to increment the pars counter if the one given is flagged
+// otherwise we store the unflagged par in the buffer and return 0
+int argoat_increment_pars(struct argoat* args, char* flag, char* pars)
+{
+	// unflagged pars
+	if (flag == NULL)
+	{
+		// tests bounds and saves
+		int count = args->unflagged_count;
+
+		if (count < args->unflagged_max)
+		{
+			args->unflagged[count] = pars;
+			++args->unflagged_count;
+		}
+
+		return 0;
+	}
+	// flagged pars
+	else
+	{
+		return 1;
+	}
+}
+
+// function execution
+void argoat_sacrifice(struct argoat* args,
+	char* flag,
+	char** pars,
+	int pars_count)
+{
+	// first flag found or tag compound passed
+	if (flag == NULL)
+	{
+		return;
+	}
+
+	// handles flags with '='
+	int flag_len;
+	char* eq = strchr(flag, '=');
+
+	if (eq != NULL)
+	{
+		flag_len = eq - flag;
+	}
+	else
+	{
+		flag_len = strlen(flag); // safe
+	}
+
+	// searches the tag in the argoat structure
+	// we initialize i to 1 to skip the programm execution command
+	int i = 1;
+	int len = args->sprigs_count;
+
+	while(i < len)
+	{
+		// as we use strncmp we must test the sizes to avoid collisions
+		if ((strncmp(args->sprigs[i].flag, flag, flag_len) == 0)
+		&& (((int) strlen(args->sprigs[i].flag)) == flag_len)) // safe
+		{
+			break;
+		}
+
+		++i;
+	}
+
+	// the flag was not registered
+	if (i == len)
+	{
+		return;
+	}
+
+	// handles flags with '='
+	// maximum number of pars passed to the function
+	int max;
+
+	if (eq != NULL)
+	{
+		// moves past the '=' char
+		++eq; 
+		// moves the pars pointer to the flag
+		--pars;
+
+		// flag with '=' means we wave an additionnal parameter
+		++pars_count;
+		// which will be the only one (the others are left unflagged)
+		max = 1;
+
+		// copies the par following '=' at the beginning of the flag
+		memcpy(pars[0], eq, strlen(eq) + 1); // safe
+	}
+	else
+	{
+		max = args->sprigs[i].pars_max;
+	}
+
+	// saves pars exceeding the limit
+	if (pars_count > max)
+	{
+		for(int k = max; k < pars_count; ++k)
+		{
+			// leverages the pars incrementation side-effects
+			argoat_increment_pars(args, NULL, pars[k]);
+		}
+
+		// fixes the number of pars given to the function
+		pars_count = max;
+	}
+
+	// calls the approriate function
+	args->sprigs[i].func(args->sprigs[i].data, pars, pars_count);
+}
+
+// executes functions without pars for compound tags
+void argoat_compound(struct argoat* args, char** pars)
+{
+	// currently processed char/flag
+	int scroll = 1;
+	char flag[2]; // safe
+
+	flag[1] = '\0';
+
+	// if this function is excuted this means there is at least one flag
+	// therefore it is safe to test the condition for the next char only
+	do
+	{
+		flag[0] = pars[0][scroll];
+		argoat_sacrifice(args, flag, pars, 0);
+		++scroll;
+	}
+	while(pars[0][scroll] != '\0');
+}
+
+// executes functions with pars for each flag
+void argoat_graze(struct argoat* args, int argc, char** argv)
+{
+	int pars_count = 0;
+	char** pars = NULL;
+	char* flag = NULL;
+	char dash;
+
+	// skips the program execution command
+	++argv;
+	--argc;
+
+	// identifies every element in argv and executes the right
+	// handling functions during the process
+	for (int i = 0; i < argc; ++i)
+	{
+		// will be tested to identify lone dashes and long flags
+		dash = argv[i][1];
+
+		// pars
+		if (argv[i][0] != '-')
+		{
+			pars_count += argoat_increment_pars(args,
+				flag,
+				argv[i]);
+		}
+		// lone dash pars
+		else if (dash == '\0')
+		{
+			pars_count += argoat_increment_pars(args,
+				flag,
+				argv[i]);
+		}
+		// very probably long flags
+		else if (dash == '-')
+		{
+			// lone double-dash pars
+			if (argv[i][2] == '\0')
+			{
+				pars_count += argoat_increment_pars(args,
+					flag,
+					argv[i]);
+			}
+			// long flags
+			else
+			{
+				// executes for previous flag
+				argoat_sacrifice(args, flag, pars, pars_count);
+				// starts a new flag scope
+				flag = argv[i] + 2;
+				pars = argv + i + 1;
+				pars_count = 0;
+			}
+		}
+		// flags
+		else
+		{
+			// executes for previous flag
+			argoat_sacrifice(args, flag, pars, pars_count);
+
+			// compound flags (eg "-xvzf") directly executes
+			if ((argv[i][2] != '=') && (argv[i][2] != '\0'))
+			{
+				// to get rid of the dash
+				argoat_compound(args, argv + i);
+				flag = NULL;
+				pars = NULL;
+			}
+			// simple flags
+			else
+			{
+				flag = argv[i] + 1;
+				pars = argv + i + 1;
+			}
+
+			pars_count = 0;
+		}
+	}
+
+	// we call the function corresponding to the last flag
+	argoat_sacrifice(args, flag, pars, pars_count);
+	// we call the function handling unflagged pars
+	if (args->unflagged_max > 0)
+	{
+		argoat_unflagged_sacrifice(args);
+	}
+}
diff --git a/dep/argoat/src/argoat.h b/dep/argoat/src/argoat.h
new file mode 100644
index 0000000..7f5652c
--- /dev/null
+++ b/dep/argoat/src/argoat.h
@@ -0,0 +1,36 @@
+#ifndef H_ARGOAT
+#define H_ARGOAT
+
+// flag-processor
+struct argoat_sprig
+{
+	// dash-prefixed option
+	const char* flag;
+	// maximum pars
+	const int pars_max;
+	// pre-loaded data for the function
+	void* data;
+	// function executed upon detection
+	void (* const func)(void* data, char** pars, const int pars_count);
+};
+
+// main structure
+struct argoat
+{
+	// the flags-processor list, with handling functions etc.
+	const struct argoat_sprig* sprigs;
+	// size of the list above
+	const int sprigs_count;
+	// unflagged tags buffer
+	char** unflagged;
+	int unflagged_count;
+	int unflagged_max;
+};
+
+void argoat_unflagged_sacrifice(const struct argoat* args);
+int argoat_increment_pars(struct argoat* args, char* flag, char* pars);
+void argoat_sacrifice(struct argoat* args, char* flag, char** pars, int pars_count);
+void argoat_compound(struct argoat* args, char** pars);
+void argoat_graze(struct argoat* args, int argc, char** argv);
+
+#endif
diff --git a/dep/argoat/sub/testoasterror/.gitignore b/dep/argoat/sub/testoasterror/.gitignore
new file mode 100644
index 0000000..7de5508
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/.gitignore
@@ -0,0 +1,2 @@
+obj
+bin
diff --git a/dep/argoat/sub/testoasterror/license.md b/dep/argoat/sub/testoasterror/license.md
new file mode 100644
index 0000000..5c93f45
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/license.md
@@ -0,0 +1,13 @@
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/dep/argoat/sub/testoasterror/makefile b/dep/argoat/sub/testoasterror/makefile
new file mode 100644
index 0000000..69a96d5
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/makefile
@@ -0,0 +1,39 @@
+NAME = testoasterror
+CC = gcc
+FLAGS = -std=c99 -pedantic -g
+FLAGS+= -Wall -Wextra -Werror=vla -Werror
+VALGRIND = --show-leak-kinds=all --track-origins=yes --leak-check=full
+
+BIND = bin
+OBJD = obj
+SRCD = src
+TESTS = tests
+
+INCL = -I$(SRCD)
+
+SRCS = $(SRCD)/testoasterror.c
+SRCS+= $(TESTS)/main.c
+
+OBJS:= $(patsubst %.c,$(OBJD)/%.o,$(SRCS))
+
+.PHONY: $(BIND)/$(NAME)
+
+$(OBJD)/%.o: %.c
+	@echo "building object $@"
+	@mkdir -p $(@D)
+	@$(CC) $(INCL) $(FLAGS) -c -o $@ $<
+
+$(BIND)/$(NAME): $(OBJS)
+	@echo "compiling executable $@"
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LINK)
+
+run:
+	@cd $(BIND) && ./$(NAME)
+
+leakgrind: $(BIND)/$(NAME)
+	@cd $(BIND) && valgrind $(VALGRIND) 2> ../valgrind.log ./$(NAME)
+
+clean:
+	@echo "cleaning"
+	@rm -rf $(BIND) $(OBJD) valgrind.log
diff --git a/dep/argoat/sub/testoasterror/readme.md b/dep/argoat/sub/testoasterror/readme.md
new file mode 100644
index 0000000..72cbd1e
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/readme.md
@@ -0,0 +1,79 @@
+# Testoasterror
+Testoasterror is a minimalistic testing library. It is written in C99
+and does not use dynamic memory allocations by default.
+
+# Testing
+Run `make` and `make run`. This will execute the example in the `tests` folder.
+
+# Using
+## TL;DR
+Check out the `tests` folder
+
+## Details
+Include `testoasterror.h` and compile `testoasterror.c` with your testing `main()`.
+
+Declare an array of `bool` to hold the results of each tested expression.
+Its size determines the maximum number of expression checks for the same test.
+If one outreaches that limit, testoasterror will print a "fail overflow" message.
+The limit is 255, the maximum for a `uint8_t`.
+```
+bool results[255];
+```
+
+Also declare an array of function pointers to hold your tests
+```
+void (*funcs[3])(struct testoasterror*) =
+{
+	test1,
+	test2,
+	test3
+}
+```
+
+Then, initialize a testoasterror context, giving:
+ - a pointer to the context to initialize
+ - the expression results buffer
+ - its length
+ - the testing functions array
+ - its length
+```
+struct testoasterror test;
+testoasterror_init(&test, results, 255, funcs, 3);
+```
+
+Run the tests and you're good to go!
+```
+testoasterror_run(&test);
+```
+
+You can now write your tests in other C files, using the same function prototype
+```
+#ifndef C_TESTS
+#define C_TESTS
+
+#include "testoasterror.h"
+
+// a test
+void test1(struct testoasterror* test)
+{
+	// an expression check
+	testoasterror(test, 1 > 0);
+}
+
+#endif
+```
+
+It is, in my opinion, a good idea to include them directly with the `main()`.
+This way, the function pointers will resolve without the need for a header
+(hence the include guards in the C file example above)
+```
+#include "tests.c"
+```
+
+Extra: to abort, call the fail function *and return*
+```
+testoasterror_fail(test);
+```
+
+# Greetings
+nnorm for ninja-starring this repo (how can you be *this* fast?!)
diff --git a/dep/argoat/sub/testoasterror/src/testoasterror.c b/dep/argoat/sub/testoasterror/src/testoasterror.c
new file mode 100644
index 0000000..1e960fb
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/src/testoasterror.c
@@ -0,0 +1,155 @@
+#include "testoasterror.h"
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdio.h>
+
+void testoasterror_init(
+	struct testoasterror* test,
+	bool* results,
+	uint8_t max,
+	void (**funcs)(struct testoasterror*),
+	uint16_t count)
+{
+	test->testing = false;
+	test->results = results;
+	test->results_end = results + max;
+
+	test->funcs = funcs;
+	test->funcs_count = count;
+}
+
+bool testoasterror_log(struct testoasterror* test)
+{
+	bool* results = test->results;
+	uint8_t max = test->results_cur - results;
+	uint8_t passed_expr = 0;
+
+	// checks the saved status of all processed expressions
+	for (uint8_t i = 0; i < max; ++i)
+	{
+		if (results[i])
+		{
+			++passed_expr;
+		}
+		else
+		{
+			// first fail
+			if (passed_expr == i)
+			{
+				fprintf(stderr, "failed expression ids:");
+			}
+
+			fprintf(stderr, " %u", i);
+		}
+	}
+
+	// newline if we printed any failed expression id
+	if (passed_expr != max)
+	{
+		fprintf(stderr, "\n");
+	}
+
+	if (test->failexec)
+	{
+		fprintf(
+			stderr,
+			"aborted before expression: %u\n",
+			max);
+	}
+
+	// expressions summary
+	fprintf(
+		stderr, 
+		"expressions: %u passed, %u failed\n",
+		passed_expr,
+		max - passed_expr);
+
+	return (passed_expr == max);
+}
+
+bool testoasterror_run(struct testoasterror* test)
+{
+	// don't run tests in tests...
+	if (test->testing == true)
+	{
+		return false;
+	}
+
+	char* result;
+	bool func_passed;
+	uint16_t tests_passed = 0;
+
+	fprintf(
+		stderr,
+		"running %u tests with %u expr slots\n\n",
+		test->funcs_count,
+		(uint8_t) (test->results_end - test->results));
+
+	// runs the test functions from the given function pointers
+	for (uint16_t i = 0; i < test->funcs_count; ++i)
+	{
+		// resets the expr results
+		test->results_cur = test->results;
+		test->failoverflow = false;
+		test->failexec = false;
+
+		// runs the test
+		test->funcs_index = i;
+		test->funcs[i](test);
+
+		// outputs info (a fail overflow is considered a fail)
+		func_passed = testoasterror_log(test)
+			&& !test->failoverflow
+			&& !test->failexec;
+		tests_passed += func_passed;
+
+		// generates a message describing the test results
+		if (test->failoverflow == true)
+		{
+			result = "encountered a fail overflow";
+		}
+		else if (test->failexec == true)
+		{
+			result = "aborted";
+		}
+		else
+		{
+			result = func_passed ? "passed" : "failed";
+		}
+
+		// test status
+		fprintf(stderr, "test #%u %s\n\n", i, result);
+	}
+
+	// tests summary
+	fprintf(
+		stderr,
+		"tests: %u passed, %u failed\n",
+		tests_passed,
+		test->funcs_count - tests_passed);
+
+	return (test->funcs_count == tests_passed);
+}
+
+// save a test status
+bool testoasterror(struct testoasterror* test, bool expr)
+{
+	if (test->results_cur < test->results_end)
+	{
+		*(test->results_cur) = expr;
+		++(test->results_cur);
+	}
+	else
+	{
+		test->failoverflow = true;
+	}
+
+	return expr;
+}
+
+// handles set execution fails
+void testoasterror_fail(struct testoasterror* test)
+{
+	test->failexec = true;
+}
diff --git a/dep/argoat/sub/testoasterror/src/testoasterror.h b/dep/argoat/sub/testoasterror/src/testoasterror.h
new file mode 100644
index 0000000..678410e
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/src/testoasterror.h
@@ -0,0 +1,41 @@
+#ifndef H_TESTOASTERROR
+#define H_TESTOASTERROR
+
+#include <stdint.h>
+#include <stdbool.h>
+
+// main structure
+struct testoasterror
+{
+	// this is a test library so we handle all weird cases
+	bool testing;
+	
+	// test results for one function
+	bool* results;
+	bool* results_cur;
+	bool* results_end;
+
+	// whether the function made too much tests for the results array
+	bool failoverflow; // <3
+	// execution fail
+	bool failexec;
+
+	// test functions
+	void (**funcs)(struct testoasterror*);
+	uint16_t funcs_index;
+	uint16_t funcs_count;
+};
+
+// testoasterror can be static if you want it to (:
+void testoasterror_init(
+	struct testoasterror* test,
+	bool* results,
+	uint8_t max,
+	void (**funcs)(struct testoasterror*),
+	uint16_t count);
+bool testoasterror_run(struct testoasterror* test);
+bool testoasterror(struct testoasterror* test, bool expr);
+void testoasterror_count(struct testoasterror* test, uint16_t count);
+void testoasterror_fail(struct testoasterror* test);
+
+#endif
diff --git a/dep/argoat/sub/testoasterror/tests/main.c b/dep/argoat/sub/testoasterror/tests/main.c
new file mode 100644
index 0000000..0802aae
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/tests/main.c
@@ -0,0 +1,24 @@
+#include "testoasterror.h"
+
+// source include
+#include "tests.c"
+
+#define COUNT_RESULTS 2
+#define COUNT_FUNCS 3
+
+int main()
+{
+	bool results[COUNT_RESULTS];
+	void (*funcs[COUNT_FUNCS])(struct testoasterror*) =
+	{
+		test1,
+		test2,
+		test3
+	};
+
+	struct testoasterror test;
+	testoasterror_init(&test, results, COUNT_RESULTS, funcs, COUNT_FUNCS);
+	testoasterror_run(&test);
+
+	return 0;
+}
diff --git a/dep/argoat/sub/testoasterror/tests/tests.c b/dep/argoat/sub/testoasterror/tests/tests.c
new file mode 100644
index 0000000..42c1b98
--- /dev/null
+++ b/dep/argoat/sub/testoasterror/tests/tests.c
@@ -0,0 +1,34 @@
+#ifndef C_TESTS
+#define C_TESTS
+
+#include "testoasterror.h"
+#include <string.h>
+
+void test1(struct testoasterror* test)
+{
+	testoasterror(test, 1 == 1);
+}
+
+void test2(struct testoasterror* test)
+{
+	testoasterror(test, 0 == 0);
+	testoasterror(test, 1 == 1);
+	testoasterror(test, 2 == 2);
+}
+
+void test3(struct testoasterror* test)
+{
+	bool res;
+
+	res = testoasterror(test, strcmp("fuck", "shit") == 0);
+
+	if (!res)
+	{
+		testoasterror_fail(test);
+		return;
+	}
+
+	testoasterror(test, 0 == 0);
+}
+
+#endif
diff --git a/dep/argoat/test/argoat_sample_1.c b/dep/argoat/test/argoat_sample_1.c
new file mode 100644
index 0000000..a53fd0e
--- /dev/null
+++ b/dep/argoat/test/argoat_sample_1.c
@@ -0,0 +1,42 @@
+#include "argoat.h"
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+void handle_bool(void* data, char** pars, const int pars_count)
+{
+	*((bool*) data) = true;
+}
+
+void handle_main(void* data, char** pars, const int pars_count)
+{
+	return;
+}
+
+int main(int argc, char** argv)
+{
+	bool data1 = false;
+	bool data2 = false;
+	bool data3 = false;
+	char** unflagged = NULL;
+
+	const struct argoat_sprig sprigs[4] =
+	{
+		{NULL, 0, NULL, handle_main},
+		{"l", 0, (void*) &data1, handle_bool},
+		{"m", 0, (void*) &data2, handle_bool},
+		{"o", 0, (void*) &data3, handle_bool},
+	};
+
+	struct argoat args = {sprigs, 4, unflagged, 0, 0};
+
+	argoat_graze(&args, argc, argv);
+	
+	printf("t%c%c%c\n",
+		data1 ? 'l' : ' ',
+		data2 ? 'm' : ' ',
+		data3 ? 'o' : ' ');
+
+	return 0;
+}
diff --git a/dep/argoat/test/argoat_sample_2.c b/dep/argoat/test/argoat_sample_2.c
new file mode 100644
index 0000000..0eb6eb8
--- /dev/null
+++ b/dep/argoat/test/argoat_sample_2.c
@@ -0,0 +1,54 @@
+#include "argoat.h"
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define UNFLAGGED_MAX 4
+
+void handle_bool(void* data, char** pars, const int pars_count)
+{
+	*((bool*) data) = true;
+}
+
+void handle_main(void* data, char** pars, const int pars_count)
+{
+	if (pars_count > UNFLAGGED_MAX)
+	{
+		return;
+	}
+
+	for (int i = 0; i < pars_count; ++i)
+	{
+		printf("%s", pars[i]);
+	}
+
+	return;
+}
+
+int main(int argc, char** argv)
+{
+	bool data1 = false;
+	bool data2 = false;
+	bool data3 = false;
+	char* unflagged[UNFLAGGED_MAX];
+
+	const struct argoat_sprig sprigs[4] =
+	{
+		{NULL, 0, NULL, handle_main},
+		{"long", 0, (void*) &data1, handle_bool},
+		{"mighty", 0, (void*) &data2, handle_bool},
+		{"options", 0, (void*) &data3, handle_bool},
+	};
+
+	struct argoat args = {sprigs, 4, unflagged, 0, UNFLAGGED_MAX};
+
+	argoat_graze(&args, argc, argv);
+	
+	printf("t%c%c%c\n",
+		data1 ? 'l' : ' ',
+		data2 ? 'm' : ' ',
+		data3 ? 'o' : ' ');
+
+	return 0;
+}
diff --git a/dep/argoat/test/argoat_sample_3.c b/dep/argoat/test/argoat_sample_3.c
new file mode 100644
index 0000000..157165b
--- /dev/null
+++ b/dep/argoat/test/argoat_sample_3.c
@@ -0,0 +1,72 @@
+#include "argoat.h"
+#include <stdbool.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#define UNFLAGGED_MAX 4
+
+void handle_bool(void* data, char** pars, const int pars_count)
+{
+	*((bool*) data) = true;
+}
+
+void handle_add(void* data, char** pars, const int pars_count)
+{
+	if (pars_count < 2)
+	{
+		return;
+	}
+
+	*((int*) data) = atoi(pars[0]) + atoi(pars[1]); // safe for testing
+}
+
+void handle_string(void* data, char** pars, const int pars_count)
+{
+	if (pars_count < 1)
+	{
+		return;
+	}
+
+	*((char**) data) = pars[0];
+}
+
+void handle_main(void* data, char** pars, const int pars_count)
+{
+	if (pars_count > UNFLAGGED_MAX)
+	{
+		return;
+	}
+
+	for (int i = 0; i < pars_count; ++i)
+	{
+		printf("%s", pars[i]);
+	}
+
+	return;
+}
+
+int main(int argc, char** argv)
+{
+	bool data1 = false;
+	int data2 = 0;
+	char* data3 = "";
+
+	char* unflagged[UNFLAGGED_MAX];
+
+	const struct argoat_sprig sprigs[4] =
+	{
+		{NULL, 0, NULL, handle_main},
+		{"tau", 2, (void*) &data2, handle_add},
+		{"t", 0, (void*) &data1, handle_bool},
+		{"text", 1, (void*) &data3, handle_string},
+	};
+
+	struct argoat args = {sprigs, 4, unflagged, 0, UNFLAGGED_MAX};
+
+	argoat_graze(&args, argc, argv);
+	
+	printf("t%c%d%s\n", data1 ? 'l' : ' ', data2, data3);
+
+	return 0;
+}
diff --git a/dep/argoat/test/main.c b/dep/argoat/test/main.c
new file mode 100644
index 0000000..271fb71
--- /dev/null
+++ b/dep/argoat/test/main.c
@@ -0,0 +1,22 @@
+#define _POSIX_C_SOURCE 200809L
+#include "testoasterror.h"
+
+// source include
+#include "tests.c"
+
+int main()
+{
+	bool results[32];
+	void (*funcs[3])(struct testoasterror*) =
+	{
+		test1,
+		test2,
+		test3
+	};
+
+	struct testoasterror test;
+	testoasterror_init(&test, results, 32, funcs, 3);
+	testoasterror_run(&test);
+
+	return 0;
+}
diff --git a/dep/argoat/test/tests.c b/dep/argoat/test/tests.c
new file mode 100644
index 0000000..5642108
--- /dev/null
+++ b/dep/argoat/test/tests.c
@@ -0,0 +1,80 @@
+#ifndef C_TESTS
+#define C_TESTS
+
+#include "testoasterror.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+void test_tool(struct testoasterror* test, uint8_t id, char* args, char* cmp)
+{
+	char* ret;
+	char buf[32];
+	char cmd[128];
+	char cmp_ln[16];
+
+	snprintf(cmd, 128, "./argoat_sample_%u %s 2>&1", id, args);
+	snprintf(cmp_ln, 16, "%s\n", cmp);
+
+	FILE* fp = popen(cmd, "r");
+	testoasterror(test, fp != NULL);
+
+	ret = fgets(buf, 32, fp);
+	testoasterror(test, (ret != NULL) && (strcmp(buf, cmp_ln) == 0));
+	fclose(fp);
+}
+
+void test1(struct testoasterror* test)
+{
+	test_tool(test, 1, "", "t   ");
+
+	test_tool(test, 1, "-l", "tl  ");
+	test_tool(test, 1, "-m", "t m ");
+	test_tool(test, 1, "-o", "t  o");
+
+	test_tool(test, 1, "--l", "tl  ");
+	test_tool(test, 1, "--long", "t   ");
+
+	test_tool(test, 1, "-lmo", "tlmo");
+	test_tool(test, 1, "-lm -o", "tlmo");
+	test_tool(test, 1, "-l -m -o", "tlmo");
+
+	test_tool(test, 1, "-l 1 -m 2 -o 3", "tlmo");
+
+	test_tool(test, 1, "-l - -m", "tlm ");
+	test_tool(test, 1, "-l --m 3", "tlm ");
+	test_tool(test, 1, "-l --m=3", "tlm ");
+}
+
+void test2(struct testoasterror* test)
+{
+	test_tool(test, 2, "--long", "tl  ");
+	test_tool(test, 2, "--mighty", "t m ");
+	test_tool(test, 2, "--options", "t  o");
+
+	test_tool(test, 2, "-l", "t   ");
+	test_tool(test, 2, "-long", "t   ");
+
+	test_tool(test, 2, "--long --mighty --options", "tlmo");
+	test_tool(test, 2, "0 --long 1 --mighty 2 --options 3", "0123tlmo");
+	test_tool(test, 2, "0 --long=1 --mighty 2 --options 3", "023tlmo");
+	test_tool(test, 2, "0 --long=1 4 --mighty 2 --options 3", "0423tlmo");
+
+	test_tool(test, 2, "0 --long - --mighty -- --options 3", "0---3tlmo");
+}
+
+void test3(struct testoasterror* test)
+{
+	test_tool(test, 3, "-t", "tl0");
+	test_tool(test, 3, "--tau", "t 0");
+	test_tool(test, 3, "--text", "t 0");
+
+	test_tool(test, 3, "-t --tau 3 4 5", "5tl7");
+	test_tool(test, 3, "--tau=3 4 5", "45t 0");
+	test_tool(test, 3, "--text one two", "twot 0one");
+
+	test_tool(test, 3, "--text= one two", "onetwot 0");
+}
+
+#endif
diff --git a/dep/configator/.gitignore b/dep/configator/.gitignore
new file mode 100644
index 0000000..1746e32
--- /dev/null
+++ b/dep/configator/.gitignore
@@ -0,0 +1,2 @@
+bin
+obj
diff --git a/dep/configator/license.md b/dep/configator/license.md
new file mode 100644
index 0000000..5c93f45
--- /dev/null
+++ b/dep/configator/license.md
@@ -0,0 +1,13 @@
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/dep/configator/makefile b/dep/configator/makefile
new file mode 100644
index 0000000..0ca9ee1
--- /dev/null
+++ b/dep/configator/makefile
@@ -0,0 +1,41 @@
+NAME = sample
+CC = gcc
+FLAGS = -std=c99 -pedantic -g
+FLAGS+= -Wall -Wno-unused-parameter -Wextra -Werror=vla -Werror
+VALGRIND = --show-leak-kinds=all --track-origins=yes --leak-check=full
+
+BIND = bin
+OBJD = obj
+SRCD = src
+RESD = res
+
+INCL = -I$(SRCD)
+
+SRCS = $(SRCD)/example.c
+SRCS+= $(SRCD)/configator.c
+
+OBJS:= $(patsubst $(SRCD)/%.c,$(OBJD)/$(SRCD)/%.o,$(SRCS))
+
+.PHONY: all
+all: $(BIND)/$(NAME) run
+
+$(OBJD)/%.o: %.c
+	@echo "building object $@"
+	@mkdir -p $(@D)
+	@$(CC) $(INCL) $(FLAGS) -c -o $@ $<
+
+$(BIND)/$(NAME): $(OBJS)
+	@echo "compiling executable $@"
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LINK)
+	@cp $(RESD)/test.ini $(BIND)/config.ini
+
+run:
+	@cd $(BIND) && ./$(NAME)
+
+leakgrind: $(BIND)/$(NAME)
+	@cd $(BIND) && valgrind $(VALGRIND) 2> ../valgrind.log ./$(NAME)
+
+clean:
+	@echo "cleaning"
+	@rm -rf $(BIND) $(OBJD) valgrind.log
diff --git a/dep/configator/readme.md b/dep/configator/readme.md
new file mode 100644
index 0000000..fff8f58
--- /dev/null
+++ b/dep/configator/readme.md
@@ -0,0 +1,95 @@
+# Configator
+Configator is a lightweight library for ini config file parsing.
+This was created to make it easy following the "DRY" coding rule
+without using macros, and with flexibility in mind.
+
+It integrates very well with the [Argoat](https://github.com/nullgemm/argoat.git)
+arguments parser library, by using the same function pointers format.
+This way, you can easily load settings from an ini file while overloading them
+with command-line arguments if needed: the handling functions will be the same.
+
+Configator does not use any macro or dynamic memory allocation,
+and was built in less than 350 lines of C99 code.
+
+## Testing
+Run `make` to compile an example executable and perform basic testing
+
+## Using
+### TL;DR
+Please see `example.c` for the condensed version
+(or better, read the actual documentation below).
+It is a bit too long to be copied here twice...
+
+### Details
+Include `argoat.h` and compile `argoat.c` with your code.
+
+Write the functions that will handle your parameters.
+They will be called during the parsing process, in the order given by the user
+```
+void handle_config_u8(void* data, char** value, const int pars_count)
+{
+	if (pars_count > 0)
+	{
+		*((uint8_t*) data) = atoi(*value);
+	}
+}
+```
+
+In your `main`, declare the variables to configure.
+They will be passed to the corresponding functions as `void* data`
+```
+	uint8_t answer = 0;
+```
+
+Declare the arrays of parameters by section, starting with the general section.
+If you don't want to handle parameters in some section, just declare it `NULL`.
+```
+struct configator_param* map_no_section = NULL;
+```
+
+Declare real sections parameters afterwards
+```
+struct configator_param map_test_section[] =
+{
+	{"ping", &answer, handle_config_u8},
+	{"pong", &answer, handle_config_u8},
+};
+```
+
+Then group them in the map
+```
+struct configator_param* map[] =
+{
+	map_no_section,
+	map_test_section
+};
+```
+
+And declare the sections array. Configator will execute the pointed function
+with `NULL` arguments at the beginning of each detected section.
+You can also declare sections with `NULL` parameters, in which case nothing
+will be executed.
+```
+struct configator_param sections[] =
+{
+	{"network_test", &answer, handle_config_u8},
+};
+```
+
+Don't forget to put the right numbers in the lenght variables
+```
+uint16_t map_len[] = {0, 2};
+uint16_t sections_len = 1;
+```
+
+Then initialize and use configator
+```
+struct configator config;
+config.map = map;
+config.map_len = map_len;
+config.sections = sections;
+config.sections_len = sections_len;
+
+configator(&config, "config.ini");
+printf("answer = %d\n", answer);
+```
diff --git a/dep/configator/res/test.ini b/dep/configator/res/test.ini
new file mode 100644
index 0000000..1c7ac25
--- /dev/null
+++ b/dep/configator/res/test.ini
@@ -0,0 +1,37 @@
+sectionless = 0000
+
+[sections_test]
+[regular]
+   [left-padded]
+[right-padded]   
+   [middle-padded]   
+[smaller]
+[   right]
+[left   ]
+[   middle   ]
+[]
+[   ]
+[three wrong words]
+[]]
+[[]
+[[]]
+
+[params_tests]
+# comment
+   # padded comment
+test = 1111
+   left-padded = 2222
+right-padded   = 3333
+minified=4444
+multi = 4444 3333 2222 1111
+spaces = "   middle   "
+wrong declaration = 5555
+wrong line
+
+[test_section]
+answer = 42
+
+[network_test]
+ping = 255
+
+[question]
diff --git a/dep/configator/src/configator.c b/dep/configator/src/configator.c
new file mode 100644
index 0000000..f433350
--- /dev/null
+++ b/dep/configator/src/configator.c
@@ -0,0 +1,309 @@
+#include "configator.h"
+#include <stddef.h>
+#include <stdio.h>
+#include <ctype.h>
+#include <string.h>
+#include <stdlib.h>
+
+// returns the index of the searched element, or len if it can't be found
+static uint16_t search(struct configator_param* config, uint16_t len, char* key)
+{
+	// strcmp indicator
+	int8_t disc;
+	// initial tested index
+	uint16_t i = len / 2;
+	// initial bounds (inclusive)
+	uint16_t k = 0;
+	uint16_t l = len - 1;
+
+	// skip directly to the final check
+	if (len > 1)
+	{
+		// as long as a match is possible
+		do
+		{
+			disc = strcmp(config[i].key, key);
+
+			if (disc == 0)
+			{
+				// found by chance
+				return i;
+			}
+			else if (disc > 0)
+			{
+				l = i;
+				i = (i + k) / 2; // floor
+			}
+			else
+			{
+				k = i;
+				i = (i + l) / 2 + (i + l) % 2; // ceil
+			}
+
+			if (len == 2)
+			{
+				break;
+			}
+		}
+		while ((k+1) != l);
+	}
+
+	if (len > 0)
+	{
+		// final check
+		disc = strcmp(config[i].key, key);
+
+		if (disc == 0)
+		{
+			// found by dichotomy
+			return i;
+		}
+	}
+
+	// not found
+	return len;
+}
+
+static void configator_save_section(struct configator* config, char* line)
+{
+	char c;
+	uint16_t index;
+	uint16_t k = 0; // last non-space pos
+	uint16_t l = 0; // second last non-space pos
+
+	// leading spaces
+	do
+	{
+		++line;
+		c = line[0];
+	}
+	while ((c != '\0') && isspace(c));
+	
+	if (c == '[')
+	{
+		++line;
+		c = line[0];
+	}
+
+	// trailing spaces
+	for (uint16_t i = 1; c != '\0'; ++i)
+	{
+		if ((c != ']') && !isspace(c))
+		{
+			// we use two variables to avoid
+			// counting the ending ']'
+			l = k + 1; // we *must* increment here
+			k = i;
+		}
+
+		c = line[i];
+	}
+
+	// terminator
+	line[l] = '\0';
+
+	if (l == 0)
+	{
+		return;
+	}
+
+	// saving
+	strncpy(config->section, line, l + 1);
+
+	// searching
+	index = search(
+		config->sections,
+		config->sections_len,
+		config->section);
+
+#ifdef CONFIGATOR_DEBUG
+		printf("[%s]\n", line);
+#endif
+
+	//  calling the function
+	if (index != config->sections_len)
+	{
+		config->current_section = index + 1;
+
+		if (config->sections[index].handle != NULL)
+		{
+			config->sections[index].handle(
+				config->sections[index].data,
+				NULL,
+				0);
+		}
+	}
+}
+
+static void configator_save_param(struct configator* config, char* line)
+{
+	char c;
+	uint16_t index;
+	uint16_t i = 0;
+	uint16_t k = 0;
+
+	// leading chars
+	do
+	{
+		++i;
+		c = line[i];
+	}
+	while ((c != '\0') && (c != '=') && !isspace(c));
+
+	// empty line
+	if (c == '\0')
+	{
+		config->param[0] = '\0';
+		config->value[0] = '\0';
+		return;
+	}
+
+	// end of the param
+	k = i;
+
+	// spaces before next char if any
+	while ((c != '\0') && isspace(c))
+	{
+		++i;
+		c = line[i];
+	}
+
+	// that next char must be '=' 
+	if (c != '=')
+	{
+		config->param[0] = '\0';
+		config->value[0] = '\0';
+		return;
+	}
+	else
+	{
+		++i;
+		c = line[i];
+	}
+
+	// spaces after '='
+	while ((c != '\0') && isspace(c))
+	{
+		++i;
+		c = line[i];
+	}
+
+	line[k] = '\0';
+	strncpy(config->param, line, k + 1);
+	strncpy(config->value, line + i, strlen(line + i) + 1);
+
+	// searching
+	if ((config->current_section == 0) && (config->map_len[0] == 0))
+	{
+		return;
+	}
+
+	index = search(
+		config->map[config->current_section],
+		config->map_len[config->current_section],
+		config->param);
+
+#ifdef CONFIGATOR_DEBUG
+		printf("%s = \"%s\"\n", config->param, config->value);
+#endif
+
+	//  calling the function
+	if ((index != config->map_len[config->current_section])
+	&& (config->map[config->current_section][index].handle != NULL))
+	{
+		char* tmp = (char*) config->value;
+		config->map[config->current_section][index].handle(
+			config->map[config->current_section][index].data,
+			&(tmp),
+			1);
+	}
+}
+
+static void configator_read(FILE* fp, char* line)
+{
+	int c = fgetc(fp);
+	uint16_t i = 0;
+	uint16_t k = 0;
+
+	if (c == EOF)
+	{
+		line[0] = '\0';
+		return;
+	}
+
+	while ((c != '\n') && (c != EOF))
+	{
+		if ((i < (CONFIGATOR_MAX_LINE + 1)) // maximum len
+		&&  ((i > 0) || !isspace(c))) // skips leading spaces
+		{
+			// used to trim trailing spaces
+			// and to terminate overflowing string
+			if (!isspace(c))
+			{
+				k = i;
+			}
+
+			line[i] = c;
+			++i;
+		}
+
+		c = fgetc(fp);
+	}
+
+	if (i == (CONFIGATOR_MAX_LINE + 1))
+	{
+		line[k] = '\0';
+	}
+	else
+	{
+		line[k + 1] = '\0';
+	}
+}
+
+int configator(struct configator* config, const char* path)
+{
+	FILE* fp = fopen(path, "r");
+
+	if (fp == NULL)
+	{
+		return -1;
+	}
+
+	config->section[0] = '\0';
+	config->param[0] = '\0';
+	config->value[0] = '\0';
+	config->current_section = 0;
+
+	// event loop
+	char line[CONFIGATOR_MAX_LINE + 1];
+
+	while (1)
+	{
+		configator_read(fp, line);
+
+		// end of file
+		if (feof(fp))
+		{
+			break;
+		}
+		// comment
+		else if (line[0] == '#')
+		{
+			continue;
+		}
+		// section
+		else if ((line[0] == '[') && (line[strlen(line) - 1] == ']'))
+		{
+			configator_save_section(config, line);
+		}
+		// param
+		else
+		{
+			configator_save_param(config, line);
+		}
+	}
+
+	fclose(fp);
+
+	return 0;
+}
diff --git a/dep/configator/src/configator.h b/dep/configator/src/configator.h
new file mode 100644
index 0000000..58a7121
--- /dev/null
+++ b/dep/configator/src/configator.h
@@ -0,0 +1,35 @@
+#ifndef H_CONFIGATOR
+#define H_CONFIGATOR
+
+#include <stdint.h>
+
+#define CONFIGATOR_MAX_LINE 80
+
+#if 0
+#define CONFIGATOR_DEBUG
+#endif
+
+struct configator_param
+{
+	char* key;
+	void* data;
+	void (*handle)(void* data, char** value, const int pars_count);
+};
+
+struct configator
+{
+	char section[CONFIGATOR_MAX_LINE];
+	char param[CONFIGATOR_MAX_LINE];
+	char value[CONFIGATOR_MAX_LINE];
+	uint16_t current_section;
+
+	struct configator_param** map;
+	struct configator_param* sections;
+
+	uint16_t* map_len;
+	uint16_t sections_len;
+};
+
+int configator(struct configator* config, const char* path);
+
+#endif
diff --git a/dep/configator/src/example.c b/dep/configator/src/example.c
new file mode 100644
index 0000000..f98a67e
--- /dev/null
+++ b/dep/configator/src/example.c
@@ -0,0 +1,71 @@
+#include "configator.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+void handle_config_u8(void* data, char** value, const int pars_count)
+{
+	if (pars_count > 0)
+	{
+		*((uint8_t*) data) = atoi(*value);
+	}
+}
+
+void handle_question(void* data, char** value, const int pars_count)
+{
+	*((uint8_t*) data) = 23;
+}
+
+int main(int argc, char** argv)
+{
+	uint8_t answer = 0;
+	uint8_t question = 0;
+
+	// parameters, grouped in sections
+	struct configator_param* map_no_section = NULL;
+	struct configator_param* map_question_section = NULL;
+	struct configator_param map_test_section[] =
+	{
+		{"aaabbb", &answer, handle_config_u8},
+		{"aabbaa", &answer, handle_config_u8},
+		{"answer", &answer, handle_config_u8},
+		{"cccccc", &answer, handle_config_u8},
+		{"cccddd", &answer, handle_config_u8},
+		{"daaaaa", &answer, handle_config_u8},
+		{"ddaaaa", &answer, handle_config_u8},
+		{"eeeeee", &answer, handle_config_u8}
+	};
+	struct configator_param* map[] =
+	{
+		map_no_section,
+		map_question_section,
+		map_test_section
+	};
+
+	// sections (used to execute functions at sections start)
+	struct configator_param sections[] =
+	{
+		{"question", &question, handle_question},
+		{"test_section", NULL, NULL},
+	};
+
+	// number of parameters, by section
+	uint16_t map_len[] = {0, 0, 8};
+	// number of sections
+	uint16_t sections_len = 2;
+
+	// configator object
+	struct configator config;
+	config.map = map;
+	config.map_len = map_len;
+	config.sections = sections;
+	config.sections_len = sections_len;
+
+	// execute configuration
+	configator(&config, "config.ini");
+	printf("question = %d\n", question);
+	printf("answer = %d\n", answer);
+
+	return 0;
+}
diff --git a/dep/dragonfail/example/dragonfail_error.h b/dep/dragonfail/example/dragonfail_error.h
new file mode 100644
index 0000000..ed087cb
--- /dev/null
+++ b/dep/dragonfail/example/dragonfail_error.h
@@ -0,0 +1,22 @@
+#ifndef H_DRAGONFAIL_ERROR
+#define H_DRAGONFAIL_ERROR
+
+enum dgn_error
+{
+	DGN_OK, // do not remove
+
+	DGN_NULL,
+	DGN_ALLOC,
+	DGN_BOUNDS,
+	DGN_DOMAIN,
+
+	DGN_SIZE, // do not remove
+};
+
+//#define DRAGONFAIL_SKIP
+#define DRAGONFAIL_BASIC_LOG
+#define DRAGONFAIL_THROW_BASIC_LOG
+#define DRAGONFAIL_THROW_DEBUG_LOG
+//#define DRAGONFAIL_ABORT
+
+#endif
diff --git a/dep/dragonfail/example/example.c b/dep/dragonfail/example/example.c
new file mode 100644
index 0000000..fdc8b9f
--- /dev/null
+++ b/dep/dragonfail/example/example.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include "dragonfail.h"
+
+int div(int num, int den)
+{
+	if (den == 0)
+	{
+		dgn_throw(DGN_DOMAIN);
+		return 0;
+	}
+
+	return num / den;
+}
+
+void log_init(char** log)
+{
+	log[DGN_OK] = "out-of-bounds log message"; // special case
+	log[DGN_NULL] = "null pointer";
+	log[DGN_ALLOC] = "failed memory allocation";
+	log[DGN_BOUNDS] = "out-of-bounds index";
+	log[DGN_DOMAIN] = "invalid domain";
+}
+
+int main()
+{
+	log_init(dgn_init());
+
+	int i;
+	int q;
+
+	for (i = -2; i < 3; ++i)
+	{
+		q = div(42, i);
+
+		if (dgn_catch())
+		{
+			printf("skipping division by zero\n");
+			dgn_reset();
+			continue;
+		}
+
+		printf("42/%d = %d\n", i, q);
+	}
+
+	return 0;
+}
diff --git a/dep/dragonfail/license.md b/dep/dragonfail/license.md
new file mode 100644
index 0000000..5c93f45
--- /dev/null
+++ b/dep/dragonfail/license.md
@@ -0,0 +1,13 @@
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+                    Version 2, December 2004
+
+ Copyright (C) 2004 Sam Hocevar <sam@hocevar.net>
+
+ Everyone is permitted to copy and distribute verbatim or modified
+ copies of this license document, and changing it is allowed as long
+ as the name is changed.
+
+            DO WHAT THE FUCK YOU WANT TO PUBLIC LICENSE
+   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+  0. You just DO WHAT THE FUCK YOU WANT TO.
diff --git a/dep/dragonfail/makefile b/dep/dragonfail/makefile
new file mode 100644
index 0000000..9982bf5
--- /dev/null
+++ b/dep/dragonfail/makefile
@@ -0,0 +1,49 @@
+NAME = dragonfail
+CC = gcc
+FLAGS = -std=c99 -pedantic -g
+FLAGS+= -Wall -Wno-unused-parameter -Wextra -Werror=vla -Werror
+VALGRIND = --show-leak-kinds=all --track-origins=yes --leak-check=full
+
+BIND = bin
+OBJD = obj
+SRCD = src
+EXPD = example
+
+INCL = -I$(SRCD)
+INCL+= -I$(EXPD)
+
+SRCS = $(EXPD)/example.c
+SRCS+= $(SRCD)/dragonfail.c
+
+SRCS_OBJS := $(patsubst %.c,$(OBJD)/%.o,$(SRCS))
+
+# aliases
+.PHONY: final
+final: $(BIND)/$(NAME)
+
+# generic compiling command
+$(OBJD)/%.o: %.c
+	@echo "building object $@"
+	@mkdir -p $(@D)
+	@$(CC) $(INCL) $(FLAGS) -c -o $@ $<
+
+# final executable
+$(BIND)/$(NAME): $(SRCS_OBJS) $(FINAL_OBJS)
+	@echo "compiling executable $@"
+	@mkdir -p $(@D)
+	@$(CC) -o $@ $^ $(LINK)
+
+run:
+	@cd $(BIND) && ./$(NAME)
+
+# tools
+## valgrind memory leak detection
+leak: $(BIND)/$(NAME)
+	@echo "# running valgrind"
+	rm -f valgrind.log
+	cd $(BIND) && valgrind $(VALGRIND) 2> ../valgrind.log ./$(NAME)
+	less valgrind.log
+## repository cleaning
+clean:
+	@echo "# cleaning"
+	rm -rf $(BIND) $(OBJD) valgrind.log
diff --git a/dep/dragonfail/readme.md b/dep/dragonfail/readme.md
new file mode 100644
index 0000000..9bd8b8a
--- /dev/null
+++ b/dep/dragonfail/readme.md
@@ -0,0 +1,77 @@
+# Dragonfail
+Dragonfail is a simple library providing basic error handling functionnalities.
+It was designed to be as lightweight as possible, and can be completely disabled
+with only one `#define` (more on that later).
+
+Dragonfail was designed to be fast and uses inline functions exclusively. These
+calls modify a global context which is not directly accessible by the programmer.
+
+All the error codes must be written in an enum in **your** `dragonfail_error.h` file.
+Because of this rather unusual architecture, the file must be found by the compiler
+when it is processing `dragonfail.c` (in addition to your own source code of course).
+
+## Testing
+Run `make` to compile an example, and `make run` to execute it.
+
+## Defines
+This header can also contain some `#define` to modify dragonfail's behaviour:
+ - `DRAGONFAIL_SKIP` completely disables the whole library, making it completely
+   disappear from the binary (unless your compiler is a massive douche).
+ - `DRAGONFAIL_BASIC_LOG` enables the `dgn_basic_log()` function calls
+ - `DRAGONFAIL_THROW_BASIC_LOG` makes `dgn_throw()` call `dgn_basic_log()` automatically
+ - `DRAGONFAIL_THROW_DEBUG_LOG` also prints the file and line in which
+   `dgn_throw()` is called (you don't even need to compile with symbols
+   because this is achieved the smart way using simple C99 macros)
+ - `DRAGONFAIL_ABORT` makes `dgn_throw()` call `abort()`
+
+Again, these `#define` must be placed in **your** `dragonfail_error.h` file.
+
+## Using
+### TL;DR
+see the `example` folder :)
+
+### Documentation
+```
+char** dgn_init();
+```
+This intializes the context to `DGN_OK` (no error) and returns the array of strings
+you can fill with log messages corresponding to the errors you added in the enum.
+
+```
+void dgn_reset();
+```
+This resets the context to `DGN_OK`.
+
+```
+void dgn_basic_log();
+```
+This prints the message corresponding to the current error to stderr.
+
+```
+void dgn_throw(enum dgn_error new_code);
+```
+This sets the error to the given code.
+
+```
+char dgn_catch();
+```
+This returns true if the context currently holds an error
+
+## Why is the architecture so strange?
+The dragonfail context is global (extern) but really *implemented* in `dragonfail.c`.
+Its type depends on the size of the enum so it is *declared* in `dragonfail_private.h`:
+this way we can include the user's `dragonfail_error.h` and get `DGN_SIZE`.
+
+The inline functions need to access this context and **we want it private**, so we can't
+*implement* them directly in the header as a lot of people seem to appreciate. Instead,
+we will *declare* them here, and put the *implementations* in `dragonfail.c`: this way
+we can access the global context without including its declaration, because it is
+implemented here as well.
+
+When you include `dragonfail.h`, you get access to the inline functions declarations
+and thanks to this design any compiler will do the rest of the job automatically. Yes,
+this whole thing is useless and over-engineered. And yes, I had fun doing it...
+
+## Greetings
+Jinjer for the cool music \m/
+Haiku developers for indirectly giving me the idea
diff --git a/dep/dragonfail/src/dragonfail.c b/dep/dragonfail/src/dragonfail.c
new file mode 100644
index 0000000..2d8404c
--- /dev/null
+++ b/dep/dragonfail/src/dragonfail.c
@@ -0,0 +1,106 @@
+#include "dragonfail.h"
+#include "dragonfail_private.h"
+#include "dragonfail_error.h"
+
+#ifdef DRAGONFAIL_BASIC_LOG
+#include <stdio.h>
+#endif
+
+#ifdef DRAGONFAIL_ABORT
+#include <stdlib.h>
+#endif
+
+// extern
+struct dgn dgn;
+
+inline char** dgn_init()
+{
+	#ifndef DRAGONFAIL_SKIP
+		dgn.error = DGN_OK;
+		return dgn.log;
+	#else
+		return NULL;
+	#endif
+}
+
+inline void dgn_reset()
+{
+	#ifndef DRAGONFAIL_SKIP
+		dgn.error = DGN_OK;
+	#endif
+}
+
+inline void dgn_basic_log()
+{
+	#ifdef DRAGONFAIL_BASIC_LOG
+	#ifndef DRAGONFAIL_SKIP
+		if (dgn.error < DGN_SIZE)
+		{
+			fprintf(stderr, "%s\n", dgn.log[dgn.error]);
+		}
+		else
+		{
+			fprintf(stderr, "%s\n", dgn.log[0]);
+		}
+	#endif
+	#endif
+}
+
+inline char* dgn_output_log()
+{
+	if (dgn.error < DGN_SIZE)
+	{
+		return dgn.log[dgn.error];
+	}
+	else
+	{
+		return dgn.log[0];
+	}
+}
+
+enum dgn_error dgn_output_code()
+{
+	return dgn.error;
+}
+
+#ifdef DRAGONFAIL_THROW_DEBUG_LOG
+inline void dgn_throw_extra(
+	enum dgn_error new_code,
+	const char* file,
+	unsigned int line)
+#else
+inline void dgn_throw(
+	enum dgn_error new_code)
+#endif
+{
+	#ifndef DRAGONFAIL_SKIP
+		dgn.error = new_code;
+
+		#ifdef DRAGONFAIL_THROW_BASIC_LOG
+		#ifdef DRAGONFAIL_BASIC_LOG
+			#ifdef DRAGONFAIL_THROW_DEBUG_LOG
+				fprintf(
+					stderr,
+					"error in %s line %u: ",
+					file,
+					line);
+			#endif
+
+			dgn_basic_log();
+		#endif
+		#endif
+
+		#ifdef DRAGONFAIL_ABORT
+			abort();
+		#endif
+	#endif
+}
+
+inline char dgn_catch()
+{
+	#ifndef DRAGONFAIL_SKIP
+		return (dgn.error != DGN_OK);
+	#else
+		return 0;
+	#endif
+}
diff --git a/dep/dragonfail/src/dragonfail.h b/dep/dragonfail/src/dragonfail.h
new file mode 100644
index 0000000..c17e634
--- /dev/null
+++ b/dep/dragonfail/src/dragonfail.h
@@ -0,0 +1,22 @@
+#ifndef H_DRAGONFAIL
+#define H_DRAGONFAIL
+
+#include "dragonfail_error.h"
+
+#ifdef DRAGONFAIL_THROW_DEBUG_LOG
+	#define dgn_throw(new_code) dgn_throw_extra(new_code, DGN_FILE, DGN_LINE)
+	#define DGN_FILE __FILE__
+	#define DGN_LINE __LINE__
+	void dgn_throw_extra(enum dgn_error new_code, const char* file, unsigned int line);
+#else
+	void dgn_throw(enum dgn_error new_code);
+#endif
+
+char** dgn_init();
+void dgn_reset();
+void dgn_basic_log();
+char* dgn_output_log();
+enum dgn_error dgn_output_code();
+char dgn_catch();
+
+#endif
diff --git a/dep/dragonfail/src/dragonfail_private.h b/dep/dragonfail/src/dragonfail_private.h
new file mode 100644
index 0000000..e83c383
--- /dev/null
+++ b/dep/dragonfail/src/dragonfail_private.h
@@ -0,0 +1,14 @@
+#ifndef H_DRAGONFAIL_PRIVATE
+#define H_DRAGONFAIL_PRIVATE
+
+#include "dragonfail_error.h"
+
+struct dgn
+{
+	enum dgn_error error;
+	char* log[DGN_SIZE];
+};
+
+extern struct dgn dgn;
+
+#endif
diff --git a/dep/termbox_next/.gitignore b/dep/termbox_next/.gitignore
new file mode 100644
index 0000000..afcccde
--- /dev/null
+++ b/dep/termbox_next/.gitignore
@@ -0,0 +1,7 @@
+bin
+obj
+src/demo/*.o
+src/demo/keyboard
+src/demo/output
+src/demo/paint
+src/demo/truecolor
diff --git a/dep/termbox_next/license b/dep/termbox_next/license
new file mode 100644
index 0000000..e9bb4ea
--- /dev/null
+++ b/dep/termbox_next/license
@@ -0,0 +1,19 @@
+Copyright (C) 2010-2013 nsf <no.smile.face@gmail.com>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/dep/termbox_next/makefile b/dep/termbox_next/makefile
new file mode 100644
index 0000000..aa2270b
--- /dev/null
+++ b/dep/termbox_next/makefile
@@ -0,0 +1,40 @@
+NAME=termbox
+CC=gcc
+FLAGS+=-std=c99 -pedantic -Wall -Werror -g
+
+OS:=$(shell uname -s)
+ifeq ($(OS),Linux)
+	FLAGS+=-D_POSIX_C_SOURCE=200809L -D_XOPEN_SOURCE
+endif
+
+BIND=bin
+SRCD=src
+OBJD=obj
+INCL=-I$(SRCD)
+
+SRCS=$(SRCD)/termbox.c
+SRCS+=$(SRCD)/input.c
+SRCS+=$(SRCD)/memstream.c
+SRCS+=$(SRCD)/ringbuffer.c
+SRCS+=$(SRCD)/term.c
+SRCS+=$(SRCD)/utf8.c
+
+OBJS:=$(patsubst $(SRCD)/%.c,$(OBJD)/$(SRCD)/%.o,$(SRCS))
+
+.PHONY:all
+all:$(BIND)/$(NAME).a
+
+$(OBJD)/%.o:%.c
+	@echo "building source object $@"
+	@mkdir -p $(@D)
+	@$(CC) $(INCL) $(FLAGS) -c -o $@ $<
+
+$(BIND)/$(NAME).a:$(OBJS)
+	@echo "compiling $@"
+	@mkdir -p $(BIND)
+	@ar rvs $(BIND)/$(NAME).a $(OBJS)
+
+clean:
+	@echo "cleaning workspace"
+	@rm -rf $(BIND)
+	@rm -rf $(OBJD)
diff --git a/dep/termbox_next/readme.md b/dep/termbox_next/readme.md
new file mode 100644
index 0000000..d20e68d
--- /dev/null
+++ b/dep/termbox_next/readme.md
@@ -0,0 +1,57 @@
+# Termbox
+[Termbox](https://github.com/nsf/termbox)
+was a promising Text User Interface (TUI) library.
+Unfortunately, its original author
+[changed his mind](https://github.com/nsf/termbox/issues/37#issuecomment-261075481)
+about consoles and despite the
+[community's efforts](https://github.com/nsf/termbox/pull/104#issuecomment-300308156)
+to keep the library's development going, preferred to let it die. Before it happened,
+[some people](https://wiki.musl-libc.org/alternatives.html)
+already noticed the robustness of the initial architecture
+[became compromised](https://github.com/nsf/termbox/commit/66c3f91b14e24510319bce6b5cc2fecf8cf5abff#commitcomment-3790714)
+in a nonsensical refactoring frenzy. Now, the author refuses to merge features
+like true-color support, invoking some
+[spurious correlations](https://github.com/nsf/termbox/pull/104#issuecomment-300292223)
+we will discuss no further.
+
+## The new Termbox-next
+This fork was made to restore the codebase to its original quality (before
+[66c3f91](https://github.com/nsf/termbox/commit/66c3f91b14e24510319bce6b5cc2fecf8cf5abff))
+while providing all the functionnalities of the current implementation.
+This was achieved by branching at
+[a2e217f](https://github.com/nsf/termbox/commit/a2e217f0fb97e6bbd589136ea3945f9d5a123d81)
+and cherry-picking all the commits up to
+[d63b83a](https://github.com/nsf/termbox/commit/d63b83af04e0fd6da836bb8f37e5cec72a1dc95a)
+if they weren't harmful.
+
+## Changes
+A lot of things changed during the process:
+ - *waf*, the original build system, was completely removed from the
+   project and replaced by make.
+ - anything related to python was removed as well
+
+## Getting started
+Termbox's interface only consists of 12 functions:
+```
+tb_init() // initialization
+tb_shutdown() // shutdown
+
+tb_width() // width of the terminal screen
+tb_height() // height of the terminal screen
+
+tb_clear() // clear buffer
+tb_present() // sync internal buffer with terminal
+
+tb_put_cell()
+tb_change_cell()
+tb_blit() // drawing functions
+
+tb_select_input_mode() // change input mode
+tb_peek_event() // peek a keyboard event
+tb_poll_event() // wait for a keyboard event
+```
+See src/termbox.h header file for full detail.
+
+## TL;DR
+`make` to build a static version of the lib under bin/termbox.a
+`cd src/demo && make` to build the example programs in src/demo/
diff --git a/dep/termbox_next/src/demo/keyboard.c b/dep/termbox_next/src/demo/keyboard.c
new file mode 100644
index 0000000..3c25c5a
--- /dev/null
+++ b/dep/termbox_next/src/demo/keyboard.c
@@ -0,0 +1,827 @@
+#include <assert.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include "termbox.h"
+
+struct key
+{
+	unsigned char x;
+	unsigned char y;
+	uint32_t ch;
+};
+
+#define STOP {0,0,0}
+struct key K_ESC[] = {{1, 1, 'E'}, {2, 1, 'S'}, {3, 1, 'C'}, STOP};
+struct key K_F1[] = {{6, 1, 'F'}, {7, 1, '1'}, STOP};
+struct key K_F2[] = {{9, 1, 'F'}, {10, 1, '2'}, STOP};
+struct key K_F3[] = {{12, 1, 'F'}, {13, 1, '3'}, STOP};
+struct key K_F4[] = {{15, 1, 'F'}, {16, 1, '4'}, STOP};
+struct key K_F5[] = {{19, 1, 'F'}, {20, 1, '5'}, STOP};
+struct key K_F6[] = {{22, 1, 'F'}, {23, 1, '6'}, STOP};
+struct key K_F7[] = {{25, 1, 'F'}, {26, 1, '7'}, STOP};
+struct key K_F8[] = {{28, 1, 'F'}, {29, 1, '8'}, STOP};
+struct key K_F9[] = {{33, 1, 'F'}, {34, 1, '9'}, STOP};
+struct key K_F10[] = {{36, 1, 'F'}, {37, 1, '1'}, {38, 1, '0'}, STOP};
+struct key K_F11[] = {{40, 1, 'F'}, {41, 1, '1'}, {42, 1, '1'}, STOP};
+struct key K_F12[] = {{44, 1, 'F'}, {45, 1, '1'}, {46, 1, '2'}, STOP};
+struct key K_PRN[] = {{50, 1, 'P'}, {51, 1, 'R'}, {52, 1, 'N'}, STOP};
+struct key K_SCR[] = {{54, 1, 'S'}, {55, 1, 'C'}, {56, 1, 'R'}, STOP};
+struct key K_BRK[] = {{58, 1, 'B'}, {59, 1, 'R'}, {60, 1, 'K'}, STOP};
+struct key K_LED1[] = {{66, 1, '-'}, STOP};
+struct key K_LED2[] = {{70, 1, '-'}, STOP};
+struct key K_LED3[] = {{74, 1, '-'}, STOP};
+
+struct key K_TILDE[] = {{1, 4, '`'}, STOP};
+struct key K_TILDE_SHIFT[] = {{1, 4, '~'}, STOP};
+struct key K_1[] = {{4, 4, '1'}, STOP};
+struct key K_1_SHIFT[] = {{4, 4, '!'}, STOP};
+struct key K_2[] = {{7, 4, '2'}, STOP};
+struct key K_2_SHIFT[] = {{7, 4, '@'}, STOP};
+struct key K_3[] = {{10, 4, '3'}, STOP};
+struct key K_3_SHIFT[] = {{10, 4, '#'}, STOP};
+struct key K_4[] = {{13, 4, '4'}, STOP};
+struct key K_4_SHIFT[] = {{13, 4, '$'}, STOP};
+struct key K_5[] = {{16, 4, '5'}, STOP};
+struct key K_5_SHIFT[] = {{16, 4, '%'}, STOP};
+struct key K_6[] = {{19, 4, '6'}, STOP};
+struct key K_6_SHIFT[] = {{19, 4, '^'}, STOP};
+struct key K_7[] = {{22, 4, '7'}, STOP};
+struct key K_7_SHIFT[] = {{22, 4, '&'}, STOP};
+struct key K_8[] = {{25, 4, '8'}, STOP};
+struct key K_8_SHIFT[] = {{25, 4, '*'}, STOP};
+struct key K_9[] = {{28, 4, '9'}, STOP};
+struct key K_9_SHIFT[] = {{28, 4, '('}, STOP};
+struct key K_0[] = {{31, 4, '0'}, STOP};
+struct key K_0_SHIFT[] = {{31, 4, ')'}, STOP};
+struct key K_MINUS[] = {{34, 4, '-'}, STOP};
+struct key K_MINUS_SHIFT[] = {{34, 4, '_'}, STOP};
+struct key K_EQUALS[] = {{37, 4, '='}, STOP};
+struct key K_EQUALS_SHIFT[] = {{37, 4, '+'}, STOP};
+struct key K_BACKSLASH[] = {{40, 4, '\\'}, STOP};
+struct key K_BACKSLASH_SHIFT[] = {{40, 4, '|'}, STOP};
+struct key K_BACKSPACE[] = {{44, 4, 0x2190}, {45, 4, 0x2500}, {46, 4, 0x2500}, STOP};
+struct key K_INS[] = {{50, 4, 'I'}, {51, 4, 'N'}, {52, 4, 'S'}, STOP};
+struct key K_HOM[] = {{54, 4, 'H'}, {55, 4, 'O'}, {56, 4, 'M'}, STOP};
+struct key K_PGU[] = {{58, 4, 'P'}, {59, 4, 'G'}, {60, 4, 'U'}, STOP};
+struct key K_K_NUMLOCK[] = {{65, 4, 'N'}, STOP};
+struct key K_K_SLASH[] = {{68, 4, '/'}, STOP};
+struct key K_K_STAR[] = {{71, 4, '*'}, STOP};
+struct key K_K_MINUS[] = {{74, 4, '-'}, STOP};
+
+struct key K_TAB[] = {{1, 6, 'T'}, {2, 6, 'A'}, {3, 6, 'B'}, STOP};
+struct key K_q[] = {{6, 6, 'q'}, STOP};
+struct key K_Q[] = {{6, 6, 'Q'}, STOP};
+struct key K_w[] = {{9, 6, 'w'}, STOP};
+struct key K_W[] = {{9, 6, 'W'}, STOP};
+struct key K_e[] = {{12, 6, 'e'}, STOP};
+struct key K_E[] = {{12, 6, 'E'}, STOP};
+struct key K_r[] = {{15, 6, 'r'}, STOP};
+struct key K_R[] = {{15, 6, 'R'}, STOP};
+struct key K_t[] = {{18, 6, 't'}, STOP};
+struct key K_T[] = {{18, 6, 'T'}, STOP};
+struct key K_y[] = {{21, 6, 'y'}, STOP};
+struct key K_Y[] = {{21, 6, 'Y'}, STOP};
+struct key K_u[] = {{24, 6, 'u'}, STOP};
+struct key K_U[] = {{24, 6, 'U'}, STOP};
+struct key K_i[] = {{27, 6, 'i'}, STOP};
+struct key K_I[] = {{27, 6, 'I'}, STOP};
+struct key K_o[] = {{30, 6, 'o'}, STOP};
+struct key K_O[] = {{30, 6, 'O'}, STOP};
+struct key K_p[] = {{33, 6, 'p'}, STOP};
+struct key K_P[] = {{33, 6, 'P'}, STOP};
+struct key K_LSQB[] = {{36, 6, '['}, STOP};
+struct key K_LCUB[] = {{36, 6, '{'}, STOP};
+struct key K_RSQB[] = {{39, 6, ']'}, STOP};
+struct key K_RCUB[] = {{39, 6, '}'}, STOP};
+struct key K_ENTER[] =
+{
+	{43, 6, 0x2591}, {44, 6, 0x2591}, {45, 6, 0x2591}, {46, 6, 0x2591},
+	{43, 7, 0x2591}, {44, 7, 0x2591}, {45, 7, 0x21B5}, {46, 7, 0x2591},
+	{41, 8, 0x2591}, {42, 8, 0x2591}, {43, 8, 0x2591}, {44, 8, 0x2591},
+	{45, 8, 0x2591}, {46, 8, 0x2591}, STOP
+};
+struct key K_DEL[] = {{50, 6, 'D'}, {51, 6, 'E'}, {52, 6, 'L'}, STOP};
+struct key K_END[] = {{54, 6, 'E'}, {55, 6, 'N'}, {56, 6, 'D'}, STOP};
+struct key K_PGD[] = {{58, 6, 'P'}, {59, 6, 'G'}, {60, 6, 'D'}, STOP};
+struct key K_K_7[] = {{65, 6, '7'}, STOP};
+struct key K_K_8[] = {{68, 6, '8'}, STOP};
+struct key K_K_9[] = {{71, 6, '9'}, STOP};
+struct key K_K_PLUS[] = {{74, 6, ' '}, {74, 7, '+'}, {74, 8, ' '}, STOP};
+
+struct key K_CAPS[] = {{1, 8, 'C'}, {2, 8, 'A'}, {3, 8, 'P'}, {4, 8, 'S'}, STOP};
+struct key K_a[] = {{7, 8, 'a'}, STOP};
+struct key K_A[] = {{7, 8, 'A'}, STOP};
+struct key K_s[] = {{10, 8, 's'}, STOP};
+struct key K_S[] = {{10, 8, 'S'}, STOP};
+struct key K_d[] = {{13, 8, 'd'}, STOP};
+struct key K_D[] = {{13, 8, 'D'}, STOP};
+struct key K_f[] = {{16, 8, 'f'}, STOP};
+struct key K_F[] = {{16, 8, 'F'}, STOP};
+struct key K_g[] = {{19, 8, 'g'}, STOP};
+struct key K_G[] = {{19, 8, 'G'}, STOP};
+struct key K_h[] = {{22, 8, 'h'}, STOP};
+struct key K_H[] = {{22, 8, 'H'}, STOP};
+struct key K_j[] = {{25, 8, 'j'}, STOP};
+struct key K_J[] = {{25, 8, 'J'}, STOP};
+struct key K_k[] = {{28, 8, 'k'}, STOP};
+struct key K_K[] = {{28, 8, 'K'}, STOP};
+struct key K_l[] = {{31, 8, 'l'}, STOP};
+struct key K_L[] = {{31, 8, 'L'}, STOP};
+struct key K_SEMICOLON[] = {{34, 8, ';'}, STOP};
+struct key K_PARENTHESIS[] = {{34, 8, ':'}, STOP};
+struct key K_QUOTE[] = {{37, 8, '\''}, STOP};
+struct key K_DOUBLEQUOTE[] = {{37, 8, '"'}, STOP};
+struct key K_K_4[] = {{65, 8, '4'}, STOP};
+struct key K_K_5[] = {{68, 8, '5'}, STOP};
+struct key K_K_6[] = {{71, 8, '6'}, STOP};
+
+struct key K_LSHIFT[] = {{1, 10, 'S'}, {2, 10, 'H'}, {3, 10, 'I'}, {4, 10, 'F'}, {5, 10, 'T'}, STOP};
+struct key K_z[] = {{9, 10, 'z'}, STOP};
+struct key K_Z[] = {{9, 10, 'Z'}, STOP};
+struct key K_x[] = {{12, 10, 'x'}, STOP};
+struct key K_X[] = {{12, 10, 'X'}, STOP};
+struct key K_c[] = {{15, 10, 'c'}, STOP};
+struct key K_C[] = {{15, 10, 'C'}, STOP};
+struct key K_v[] = {{18, 10, 'v'}, STOP};
+struct key K_V[] = {{18, 10, 'V'}, STOP};
+struct key K_b[] = {{21, 10, 'b'}, STOP};
+struct key K_B[] = {{21, 10, 'B'}, STOP};
+struct key K_n[] = {{24, 10, 'n'}, STOP};
+struct key K_N[] = {{24, 10, 'N'}, STOP};
+struct key K_m[] = {{27, 10, 'm'}, STOP};
+struct key K_M[] = {{27, 10, 'M'}, STOP};
+struct key K_COMMA[] = {{30, 10, ','}, STOP};
+struct key K_LANB[] = {{30, 10, '<'}, STOP};
+struct key K_PERIOD[] = {{33, 10, '.'}, STOP};
+struct key K_RANB[] = {{33, 10, '>'}, STOP};
+struct key K_SLASH[] = {{36, 10, '/'}, STOP};
+struct key K_QUESTION[] = {{36, 10, '?'}, STOP};
+struct key K_RSHIFT[] = {{42, 10, 'S'}, {43, 10, 'H'}, {44, 10, 'I'}, {45, 10, 'F'}, {46, 10, 'T'}, STOP};
+struct key K_ARROW_UP[] = {{54, 10, '('}, {55, 10, 0x2191}, {56, 10, ')'}, STOP};
+struct key K_K_1[] = {{65, 10, '1'}, STOP};
+struct key K_K_2[] = {{68, 10, '2'}, STOP};
+struct key K_K_3[] = {{71, 10, '3'}, STOP};
+struct key K_K_ENTER[] = {{74, 10, 0x2591}, {74, 11, 0x2591}, {74, 12, 0x2591}, STOP};
+
+struct key K_LCTRL[] = {{1, 12, 'C'}, {2, 12, 'T'}, {3, 12, 'R'}, {4, 12, 'L'}, STOP};
+struct key K_LWIN[] = {{6, 12, 'W'}, {7, 12, 'I'}, {8, 12, 'N'}, STOP};
+struct key K_LALT[] = {{10, 12, 'A'}, {11, 12, 'L'}, {12, 12, 'T'}, STOP};
+struct key K_SPACE[] =
+{
+	{14, 12, ' '}, {15, 12, ' '}, {16, 12, ' '}, {17, 12, ' '}, {18, 12, ' '},
+	{19, 12, 'S'}, {20, 12, 'P'}, {21, 12, 'A'}, {22, 12, 'C'}, {23, 12, 'E'},
+	{24, 12, ' '}, {25, 12, ' '}, {26, 12, ' '}, {27, 12, ' '}, {28, 12, ' '},
+	STOP
+};
+struct key K_RALT[] = {{30, 12, 'A'}, {31, 12, 'L'}, {32, 12, 'T'}, STOP};
+struct key K_RWIN[] = {{34, 12, 'W'}, {35, 12, 'I'}, {36, 12, 'N'}, STOP};
+struct key K_RPROP[] = {{38, 12, 'P'}, {39, 12, 'R'}, {40, 12, 'O'}, {41, 12, 'P'}, STOP};
+struct key K_RCTRL[] = {{43, 12, 'C'}, {44, 12, 'T'}, {45, 12, 'R'}, {46, 12, 'L'}, STOP};
+struct key K_ARROW_LEFT[] = {{50, 12, '('}, {51, 12, 0x2190}, {52, 12, ')'}, STOP};
+struct key K_ARROW_DOWN[] = {{54, 12, '('}, {55, 12, 0x2193}, {56, 12, ')'}, STOP};
+struct key K_ARROW_RIGHT[] = {{58, 12, '('}, {59, 12, 0x2192}, {60, 12, ')'}, STOP};
+struct key K_K_0[] = {{65, 12, ' '}, {66, 12, '0'}, {67, 12, ' '}, {68, 12, ' '}, STOP};
+struct key K_K_PERIOD[] = {{71, 12, '.'}, STOP};
+
+struct combo
+{
+	struct key* keys[6];
+};
+
+struct combo combos[] =
+{
+	{{K_TILDE, K_2, K_LCTRL, K_RCTRL, 0}},
+	{{K_A, K_LCTRL, K_RCTRL, 0}},
+	{{K_B, K_LCTRL, K_RCTRL, 0}},
+	{{K_C, K_LCTRL, K_RCTRL, 0}},
+	{{K_D, K_LCTRL, K_RCTRL, 0}},
+	{{K_E, K_LCTRL, K_RCTRL, 0}},
+	{{K_F, K_LCTRL, K_RCTRL, 0}},
+	{{K_G, K_LCTRL, K_RCTRL, 0}},
+	{{K_H, K_BACKSPACE, K_LCTRL, K_RCTRL, 0}},
+	{{K_I, K_TAB, K_LCTRL, K_RCTRL, 0}},
+	{{K_J, K_LCTRL, K_RCTRL, 0}},
+	{{K_K, K_LCTRL, K_RCTRL, 0}},
+	{{K_L, K_LCTRL, K_RCTRL, 0}},
+	{{K_M, K_ENTER, K_K_ENTER, K_LCTRL, K_RCTRL, 0}},
+	{{K_N, K_LCTRL, K_RCTRL, 0}},
+	{{K_O, K_LCTRL, K_RCTRL, 0}},
+	{{K_P, K_LCTRL, K_RCTRL, 0}},
+	{{K_Q, K_LCTRL, K_RCTRL, 0}},
+	{{K_R, K_LCTRL, K_RCTRL, 0}},
+	{{K_S, K_LCTRL, K_RCTRL, 0}},
+	{{K_T, K_LCTRL, K_RCTRL, 0}},
+	{{K_U, K_LCTRL, K_RCTRL, 0}},
+	{{K_V, K_LCTRL, K_RCTRL, 0}},
+	{{K_W, K_LCTRL, K_RCTRL, 0}},
+	{{K_X, K_LCTRL, K_RCTRL, 0}},
+	{{K_Y, K_LCTRL, K_RCTRL, 0}},
+	{{K_Z, K_LCTRL, K_RCTRL, 0}},
+	{{K_LSQB, K_ESC, K_3, K_LCTRL, K_RCTRL, 0}},
+	{{K_4, K_BACKSLASH, K_LCTRL, K_RCTRL, 0}},
+	{{K_RSQB, K_5, K_LCTRL, K_RCTRL, 0}},
+	{{K_6, K_LCTRL, K_RCTRL, 0}},
+	{{K_7, K_SLASH, K_MINUS_SHIFT, K_LCTRL, K_RCTRL, 0}},
+	{{K_SPACE, 0}},
+	{{K_1_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_DOUBLEQUOTE, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_3_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_4_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_5_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_7_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_QUOTE, 0}},
+	{{K_9_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_0_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_8_SHIFT, K_K_STAR, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_EQUALS_SHIFT, K_K_PLUS, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_COMMA, 0}},
+	{{K_MINUS, K_K_MINUS, 0}},
+	{{K_PERIOD, K_K_PERIOD, 0}},
+	{{K_SLASH, K_K_SLASH, 0}},
+	{{K_0, K_K_0, 0}},
+	{{K_1, K_K_1, 0}},
+	{{K_2, K_K_2, 0}},
+	{{K_3, K_K_3, 0}},
+	{{K_4, K_K_4, 0}},
+	{{K_5, K_K_5, 0}},
+	{{K_6, K_K_6, 0}},
+	{{K_7, K_K_7, 0}},
+	{{K_8, K_K_8, 0}},
+	{{K_9, K_K_9, 0}},
+	{{K_PARENTHESIS, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_SEMICOLON, 0}},
+	{{K_LANB, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_EQUALS, 0}},
+	{{K_RANB, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_QUESTION, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_2_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_A, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_B, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_C, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_D, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_E, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_F, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_G, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_H, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_I, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_J, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_K, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_L, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_M, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_N, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_O, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_P, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_Q, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_R, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_S, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_T, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_U, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_V, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_W, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_X, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_Y, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_Z, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_LSQB, 0}},
+	{{K_BACKSLASH, 0}},
+	{{K_RSQB, 0}},
+	{{K_6_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_MINUS_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_TILDE, 0}},
+	{{K_a, 0}},
+	{{K_b, 0}},
+	{{K_c, 0}},
+	{{K_d, 0}},
+	{{K_e, 0}},
+	{{K_f, 0}},
+	{{K_g, 0}},
+	{{K_h, 0}},
+	{{K_i, 0}},
+	{{K_j, 0}},
+	{{K_k, 0}},
+	{{K_l, 0}},
+	{{K_m, 0}},
+	{{K_n, 0}},
+	{{K_o, 0}},
+	{{K_p, 0}},
+	{{K_q, 0}},
+	{{K_r, 0}},
+	{{K_s, 0}},
+	{{K_t, 0}},
+	{{K_u, 0}},
+	{{K_v, 0}},
+	{{K_w, 0}},
+	{{K_x, 0}},
+	{{K_y, 0}},
+	{{K_z, 0}},
+	{{K_LCUB, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_BACKSLASH_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_RCUB, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_TILDE_SHIFT, K_LSHIFT, K_RSHIFT, 0}},
+	{{K_8, K_BACKSPACE, K_LCTRL, K_RCTRL, 0}}
+};
+
+struct combo func_combos[] =
+{
+	{{K_F1, 0}},
+	{{K_F2, 0}},
+	{{K_F3, 0}},
+	{{K_F4, 0}},
+	{{K_F5, 0}},
+	{{K_F6, 0}},
+	{{K_F7, 0}},
+	{{K_F8, 0}},
+	{{K_F9, 0}},
+	{{K_F10, 0}},
+	{{K_F11, 0}},
+	{{K_F12, 0}},
+	{{K_INS, 0}},
+	{{K_DEL, 0}},
+	{{K_HOM, 0}},
+	{{K_END, 0}},
+	{{K_PGU, 0}},
+	{{K_PGD, 0}},
+	{{K_ARROW_UP, 0}},
+	{{K_ARROW_DOWN, 0}},
+	{{K_ARROW_LEFT, 0}},
+	{{K_ARROW_RIGHT, 0}}
+};
+
+void print_tb(const char* str, int x, int y, uint32_t fg, uint32_t bg)
+{
+	while (*str)
+	{
+		uint32_t uni;
+		str += utf8_char_to_unicode(&uni, str);
+		tb_change_cell(x, y, uni, fg, bg);
+		x++;
+	}
+}
+
+void printf_tb(int x, int y, uint32_t fg, uint32_t bg, const char* fmt, ...)
+{
+	char buf[4096];
+	va_list vl;
+	va_start(vl, fmt);
+	vsnprintf(buf, sizeof(buf), fmt, vl);
+	va_end(vl);
+	print_tb(buf, x, y, fg, bg);
+}
+
+void draw_key(struct key* k, uint32_t fg, uint32_t bg)
+{
+	while (k->x)
+	{
+		tb_change_cell(k->x + 2, k->y + 4, k->ch, fg, bg);
+		k++;
+	}
+}
+
+void draw_keyboard()
+{
+	int i;
+	tb_change_cell(0, 0, 0x250C, TB_WHITE, TB_DEFAULT);
+	tb_change_cell(79, 0, 0x2510, TB_WHITE, TB_DEFAULT);
+	tb_change_cell(0, 23, 0x2514, TB_WHITE, TB_DEFAULT);
+	tb_change_cell(79, 23, 0x2518, TB_WHITE, TB_DEFAULT);
+
+	for (i = 1; i < 79; ++i)
+	{
+		tb_change_cell(i, 0, 0x2500, TB_WHITE, TB_DEFAULT);
+		tb_change_cell(i, 23, 0x2500, TB_WHITE, TB_DEFAULT);
+		tb_change_cell(i, 17, 0x2500, TB_WHITE, TB_DEFAULT);
+		tb_change_cell(i, 4, 0x2500, TB_WHITE, TB_DEFAULT);
+	}
+
+	for (i = 1; i < 23; ++i)
+	{
+		tb_change_cell(0, i, 0x2502, TB_WHITE, TB_DEFAULT);
+		tb_change_cell(79, i, 0x2502, TB_WHITE, TB_DEFAULT);
+	}
+
+	tb_change_cell(0, 17, 0x251C, TB_WHITE, TB_DEFAULT);
+	tb_change_cell(79, 17, 0x2524, TB_WHITE, TB_DEFAULT);
+	tb_change_cell(0, 4, 0x251C, TB_WHITE, TB_DEFAULT);
+	tb_change_cell(79, 4, 0x2524, TB_WHITE, TB_DEFAULT);
+
+	for (i = 5; i < 17; ++i)
+	{
+		tb_change_cell(1, i, 0x2588, TB_YELLOW, TB_YELLOW);
+		tb_change_cell(78, i, 0x2588, TB_YELLOW, TB_YELLOW);
+	}
+
+	draw_key(K_ESC, TB_WHITE, TB_BLUE);
+	draw_key(K_F1, TB_WHITE, TB_BLUE);
+	draw_key(K_F2, TB_WHITE, TB_BLUE);
+	draw_key(K_F3, TB_WHITE, TB_BLUE);
+	draw_key(K_F4, TB_WHITE, TB_BLUE);
+	draw_key(K_F5, TB_WHITE, TB_BLUE);
+	draw_key(K_F6, TB_WHITE, TB_BLUE);
+	draw_key(K_F7, TB_WHITE, TB_BLUE);
+	draw_key(K_F8, TB_WHITE, TB_BLUE);
+	draw_key(K_F9, TB_WHITE, TB_BLUE);
+	draw_key(K_F10, TB_WHITE, TB_BLUE);
+	draw_key(K_F11, TB_WHITE, TB_BLUE);
+	draw_key(K_F12, TB_WHITE, TB_BLUE);
+	draw_key(K_PRN, TB_WHITE, TB_BLUE);
+	draw_key(K_SCR, TB_WHITE, TB_BLUE);
+	draw_key(K_BRK, TB_WHITE, TB_BLUE);
+	draw_key(K_LED1, TB_WHITE, TB_BLUE);
+	draw_key(K_LED2, TB_WHITE, TB_BLUE);
+	draw_key(K_LED3, TB_WHITE, TB_BLUE);
+
+	draw_key(K_TILDE, TB_WHITE, TB_BLUE);
+	draw_key(K_1, TB_WHITE, TB_BLUE);
+	draw_key(K_2, TB_WHITE, TB_BLUE);
+	draw_key(K_3, TB_WHITE, TB_BLUE);
+	draw_key(K_4, TB_WHITE, TB_BLUE);
+	draw_key(K_5, TB_WHITE, TB_BLUE);
+	draw_key(K_6, TB_WHITE, TB_BLUE);
+	draw_key(K_7, TB_WHITE, TB_BLUE);
+	draw_key(K_8, TB_WHITE, TB_BLUE);
+	draw_key(K_9, TB_WHITE, TB_BLUE);
+	draw_key(K_0, TB_WHITE, TB_BLUE);
+	draw_key(K_MINUS, TB_WHITE, TB_BLUE);
+	draw_key(K_EQUALS, TB_WHITE, TB_BLUE);
+	draw_key(K_BACKSLASH, TB_WHITE, TB_BLUE);
+	draw_key(K_BACKSPACE, TB_WHITE, TB_BLUE);
+	draw_key(K_INS, TB_WHITE, TB_BLUE);
+	draw_key(K_HOM, TB_WHITE, TB_BLUE);
+	draw_key(K_PGU, TB_WHITE, TB_BLUE);
+	draw_key(K_K_NUMLOCK, TB_WHITE, TB_BLUE);
+	draw_key(K_K_SLASH, TB_WHITE, TB_BLUE);
+	draw_key(K_K_STAR, TB_WHITE, TB_BLUE);
+	draw_key(K_K_MINUS, TB_WHITE, TB_BLUE);
+
+	draw_key(K_TAB, TB_WHITE, TB_BLUE);
+	draw_key(K_q, TB_WHITE, TB_BLUE);
+	draw_key(K_w, TB_WHITE, TB_BLUE);
+	draw_key(K_e, TB_WHITE, TB_BLUE);
+	draw_key(K_r, TB_WHITE, TB_BLUE);
+	draw_key(K_t, TB_WHITE, TB_BLUE);
+	draw_key(K_y, TB_WHITE, TB_BLUE);
+	draw_key(K_u, TB_WHITE, TB_BLUE);
+	draw_key(K_i, TB_WHITE, TB_BLUE);
+	draw_key(K_o, TB_WHITE, TB_BLUE);
+	draw_key(K_p, TB_WHITE, TB_BLUE);
+	draw_key(K_LSQB, TB_WHITE, TB_BLUE);
+	draw_key(K_RSQB, TB_WHITE, TB_BLUE);
+	draw_key(K_ENTER, TB_WHITE, TB_BLUE);
+	draw_key(K_DEL, TB_WHITE, TB_BLUE);
+	draw_key(K_END, TB_WHITE, TB_BLUE);
+	draw_key(K_PGD, TB_WHITE, TB_BLUE);
+	draw_key(K_K_7, TB_WHITE, TB_BLUE);
+	draw_key(K_K_8, TB_WHITE, TB_BLUE);
+	draw_key(K_K_9, TB_WHITE, TB_BLUE);
+	draw_key(K_K_PLUS, TB_WHITE, TB_BLUE);
+
+	draw_key(K_CAPS, TB_WHITE, TB_BLUE);
+	draw_key(K_a, TB_WHITE, TB_BLUE);
+	draw_key(K_s, TB_WHITE, TB_BLUE);
+	draw_key(K_d, TB_WHITE, TB_BLUE);
+	draw_key(K_f, TB_WHITE, TB_BLUE);
+	draw_key(K_g, TB_WHITE, TB_BLUE);
+	draw_key(K_h, TB_WHITE, TB_BLUE);
+	draw_key(K_j, TB_WHITE, TB_BLUE);
+	draw_key(K_k, TB_WHITE, TB_BLUE);
+	draw_key(K_l, TB_WHITE, TB_BLUE);
+	draw_key(K_SEMICOLON, TB_WHITE, TB_BLUE);
+	draw_key(K_QUOTE, TB_WHITE, TB_BLUE);
+	draw_key(K_K_4, TB_WHITE, TB_BLUE);
+	draw_key(K_K_5, TB_WHITE, TB_BLUE);
+	draw_key(K_K_6, TB_WHITE, TB_BLUE);
+
+	draw_key(K_LSHIFT, TB_WHITE, TB_BLUE);
+	draw_key(K_z, TB_WHITE, TB_BLUE);
+	draw_key(K_x, TB_WHITE, TB_BLUE);
+	draw_key(K_c, TB_WHITE, TB_BLUE);
+	draw_key(K_v, TB_WHITE, TB_BLUE);
+	draw_key(K_b, TB_WHITE, TB_BLUE);
+	draw_key(K_n, TB_WHITE, TB_BLUE);
+	draw_key(K_m, TB_WHITE, TB_BLUE);
+	draw_key(K_COMMA, TB_WHITE, TB_BLUE);
+	draw_key(K_PERIOD, TB_WHITE, TB_BLUE);
+	draw_key(K_SLASH, TB_WHITE, TB_BLUE);
+	draw_key(K_RSHIFT, TB_WHITE, TB_BLUE);
+	draw_key(K_ARROW_UP, TB_WHITE, TB_BLUE);
+	draw_key(K_K_1, TB_WHITE, TB_BLUE);
+	draw_key(K_K_2, TB_WHITE, TB_BLUE);
+	draw_key(K_K_3, TB_WHITE, TB_BLUE);
+	draw_key(K_K_ENTER, TB_WHITE, TB_BLUE);
+
+	draw_key(K_LCTRL, TB_WHITE, TB_BLUE);
+	draw_key(K_LWIN, TB_WHITE, TB_BLUE);
+	draw_key(K_LALT, TB_WHITE, TB_BLUE);
+	draw_key(K_SPACE, TB_WHITE, TB_BLUE);
+	draw_key(K_RCTRL, TB_WHITE, TB_BLUE);
+	draw_key(K_RPROP, TB_WHITE, TB_BLUE);
+	draw_key(K_RWIN, TB_WHITE, TB_BLUE);
+	draw_key(K_RALT, TB_WHITE, TB_BLUE);
+	draw_key(K_ARROW_LEFT, TB_WHITE, TB_BLUE);
+	draw_key(K_ARROW_DOWN, TB_WHITE, TB_BLUE);
+	draw_key(K_ARROW_RIGHT, TB_WHITE, TB_BLUE);
+	draw_key(K_K_0, TB_WHITE, TB_BLUE);
+	draw_key(K_K_PERIOD, TB_WHITE, TB_BLUE);
+
+	printf_tb(33, 1, TB_MAGENTA | TB_BOLD, TB_DEFAULT, "Keyboard demo!");
+	printf_tb(21, 2, TB_MAGENTA, TB_DEFAULT,
+		"(press CTRL+X and then CTRL+Q to exit)");
+	printf_tb(15, 3, TB_MAGENTA, TB_DEFAULT,
+		"(press CTRL+X and then CTRL+C to change input mode)");
+
+	int inputmode = tb_select_input_mode(0);
+	char inputmode_str[64];
+
+	if (inputmode & TB_INPUT_ESC)
+	{
+		sprintf(inputmode_str, "TB_INPUT_ESC");
+	}
+
+	if (inputmode & TB_INPUT_ALT)
+	{
+		sprintf(inputmode_str, "TB_INPUT_ALT");
+	}
+
+	if (inputmode & TB_INPUT_MOUSE)
+	{
+		sprintf(inputmode_str + 12, " | TB_INPUT_MOUSE");
+	}
+
+	printf_tb(3, 18, TB_WHITE, TB_DEFAULT, "Input mode: %s", inputmode_str);
+}
+
+const char* funckeymap(int k)
+{
+	static const char* fcmap[] =
+	{
+		"CTRL+2, CTRL+~",
+		"CTRL+A",
+		"CTRL+B",
+		"CTRL+C",
+		"CTRL+D",
+		"CTRL+E",
+		"CTRL+F",
+		"CTRL+G",
+		"CTRL+H, BACKSPACE",
+		"CTRL+I, TAB",
+		"CTRL+J",
+		"CTRL+K",
+		"CTRL+L",
+		"CTRL+M, ENTER",
+		"CTRL+N",
+		"CTRL+O",
+		"CTRL+P",
+		"CTRL+Q",
+		"CTRL+R",
+		"CTRL+S",
+		"CTRL+T",
+		"CTRL+U",
+		"CTRL+V",
+		"CTRL+W",
+		"CTRL+X",
+		"CTRL+Y",
+		"CTRL+Z",
+		"CTRL+3, ESC, CTRL+[",
+		"CTRL+4, CTRL+\\",
+		"CTRL+5, CTRL+]",
+		"CTRL+6",
+		"CTRL+7, CTRL+/, CTRL+_",
+		"SPACE"
+	};
+	static const char* fkmap[] =
+	{
+		"F1",
+		"F2",
+		"F3",
+		"F4",
+		"F5",
+		"F6",
+		"F7",
+		"F8",
+		"F9",
+		"F10",
+		"F11",
+		"F12",
+		"INSERT",
+		"DELETE",
+		"HOME",
+		"END",
+		"PGUP",
+		"PGDN",
+		"ARROW UP",
+		"ARROW DOWN",
+		"ARROW LEFT",
+		"ARROW RIGHT"
+	};
+
+	if (k == TB_KEY_CTRL_8)
+	{
+		return "CTRL+8, BACKSPACE 2";    // 0x7F
+	}
+	else if (k >= TB_KEY_ARROW_RIGHT && k <= 0xFFFF)
+	{
+		return fkmap[0xFFFF - k];
+	}
+	else if (k <= TB_KEY_SPACE)
+	{
+		return fcmap[k];
+	}
+
+	return "UNKNOWN";
+}
+
+void pretty_print_press(struct tb_event* ev)
+{
+	char buf[7];
+	buf[utf8_unicode_to_char(buf, ev->ch)] = '\0';
+	printf_tb(3, 19, TB_WHITE, TB_DEFAULT, "Key: ");
+	printf_tb(8, 19, TB_YELLOW, TB_DEFAULT, "decimal: %d", ev->key);
+	printf_tb(8, 20, TB_GREEN, TB_DEFAULT, "hex:     0x%X", ev->key);
+	printf_tb(8, 21, TB_CYAN, TB_DEFAULT, "octal:   0%o", ev->key);
+	printf_tb(8, 22, TB_RED, TB_DEFAULT, "string:  %s", funckeymap(ev->key));
+
+	printf_tb(54, 19, TB_WHITE, TB_DEFAULT, "Char: ");
+	printf_tb(60, 19, TB_YELLOW, TB_DEFAULT, "decimal: %d", ev->ch);
+	printf_tb(60, 20, TB_GREEN, TB_DEFAULT, "hex:     0x%X", ev->ch);
+	printf_tb(60, 21, TB_CYAN, TB_DEFAULT, "octal:   0%o", ev->ch);
+	printf_tb(60, 22, TB_RED, TB_DEFAULT, "string:  %s", buf);
+
+	printf_tb(54, 18, TB_WHITE, TB_DEFAULT, "Modifier: %s",
+		(ev->mod) ? "TB_MOD_ALT" : "none");
+
+}
+
+void pretty_print_resize(struct tb_event* ev)
+{
+	printf_tb(3, 19, TB_WHITE, TB_DEFAULT, "Resize event: %d x %d", ev->w, ev->h);
+}
+
+int counter = 0;
+
+void  pretty_print_mouse(struct tb_event* ev)
+{
+	printf_tb(3, 19, TB_WHITE, TB_DEFAULT, "Mouse event: %d x %d", ev->x, ev->y);
+	char* btn = "";
+
+	switch (ev->key)
+	{
+		case TB_KEY_MOUSE_LEFT:
+			btn = "MouseLeft: %d";
+			break;
+
+		case TB_KEY_MOUSE_MIDDLE:
+			btn = "MouseMiddle: %d";
+			break;
+
+		case TB_KEY_MOUSE_RIGHT:
+			btn = "MouseRight: %d";
+			break;
+
+		case TB_KEY_MOUSE_WHEEL_UP:
+			btn = "MouseWheelUp: %d";
+			break;
+
+		case TB_KEY_MOUSE_WHEEL_DOWN:
+			btn = "MouseWheelDown: %d";
+			break;
+
+		case TB_KEY_MOUSE_RELEASE:
+			btn = "MouseRelease: %d";
+	}
+
+	counter++;
+	printf_tb(43, 19, TB_WHITE, TB_DEFAULT, "Key: ");
+	printf_tb(48, 19, TB_YELLOW, TB_DEFAULT, btn, counter);
+}
+
+void dispatch_press(struct tb_event* ev)
+{
+	if (ev->mod & TB_MOD_ALT)
+	{
+		draw_key(K_LALT, TB_WHITE, TB_RED);
+		draw_key(K_RALT, TB_WHITE, TB_RED);
+	}
+
+	struct combo* k = 0;
+
+	if (ev->key >= TB_KEY_ARROW_RIGHT)
+	{
+		k = &func_combos[0xFFFF - ev->key];
+	}
+	else if (ev->ch < 128)
+	{
+		if (ev->ch == 0 && ev->key < 128)
+		{
+			k = &combos[ev->key];
+		}
+		else
+		{
+			k = &combos[ev->ch];
+		}
+	}
+
+	if (!k)
+	{
+		return;
+	}
+
+	struct key** keys = k->keys;
+
+	while (*keys)
+	{
+		draw_key(*keys, TB_WHITE, TB_RED);
+		keys++;
+	}
+}
+
+int main(int argc, char** argv)
+{
+	(void) argc;
+	(void) argv;
+	int ret;
+
+	ret = tb_init();
+
+	if (ret)
+	{
+		fprintf(stderr, "tb_init() failed with error code %d\n", ret);
+		return 1;
+	}
+
+	tb_select_input_mode(TB_INPUT_ESC | TB_INPUT_MOUSE);
+	struct tb_event ev;
+
+	tb_clear();
+	draw_keyboard();
+	tb_present();
+	int inputmode = 0;
+	int ctrlxpressed = 0;
+
+	while (tb_poll_event(&ev))
+	{
+		switch (ev.type)
+		{
+			case TB_EVENT_KEY:
+				if (ev.key == TB_KEY_CTRL_Q && ctrlxpressed)
+				{
+					tb_shutdown();
+					return 0;
+				}
+
+				if (ev.key == TB_KEY_CTRL_C && ctrlxpressed)
+				{
+					static int chmap[] =
+					{
+						TB_INPUT_ESC | TB_INPUT_MOUSE, // 101
+						TB_INPUT_ALT | TB_INPUT_MOUSE, // 110
+						TB_INPUT_ESC,                  // 001
+						TB_INPUT_ALT,                  // 010
+					};
+					inputmode++;
+
+					if (inputmode >= 4)
+					{
+						inputmode = 0;
+					}
+
+					tb_select_input_mode(chmap[inputmode]);
+				}
+
+				if (ev.key == TB_KEY_CTRL_X)
+				{
+					ctrlxpressed = 1;
+				}
+				else
+				{
+					ctrlxpressed = 0;
+				}
+
+				tb_clear();
+				draw_keyboard();
+				dispatch_press(&ev);
+				pretty_print_press(&ev);
+				tb_present();
+				break;
+
+			case TB_EVENT_RESIZE:
+				tb_clear();
+				draw_keyboard();
+				pretty_print_resize(&ev);
+				tb_present();
+				break;
+
+			case TB_EVENT_MOUSE:
+				tb_clear();
+				draw_keyboard();
+				pretty_print_mouse(&ev);
+				tb_present();
+				break;
+
+			default:
+				break;
+		}
+	}
+
+	tb_shutdown();
+	return 0;
+}
diff --git a/dep/termbox_next/src/demo/makefile b/dep/termbox_next/src/demo/makefile
new file mode 100644
index 0000000..74ec8dd
--- /dev/null
+++ b/dep/termbox_next/src/demo/makefile
@@ -0,0 +1,30 @@
+CC=gcc
+FLAGS=-std=c99 -pedantic -Wall -Werror -g -static 
+INCL=-I../
+BIND=../../bin
+
+%.o:%.c
+	@echo "building source object $@"
+	@$(CC) $(INCL) $(FLAGS) -c -o $@ $<
+
+all:keyboard output paint truecolor
+
+keyboard:keyboard.o
+	@echo "compiling $@"
+	@$(CC) $(INCL) $(FLAGS) -o $@ $@.o $(BIND)/termbox.a
+
+output:output.o
+	@echo "compiling $@"
+	@$(CC) $(INCL) $(FLAGS) -o $@ $@.o $(BIND)/termbox.a
+
+paint:paint.o
+	@echo "compiling $@"
+	@$(CC) $(INCL) $(FLAGS) -o $@ $@.o $(BIND)/termbox.a
+
+truecolor:truecolor.o
+	@echo "compiling $@"
+	@$(CC) $(INCL) $(FLAGS) -o $@ $@.o $(BIND)/termbox.a
+
+clean:
+	@echo "cleaning workspace"
+	@rm -rf *.o keyboard output paint truecolor
diff --git a/dep/termbox_next/src/demo/output.c b/dep/termbox_next/src/demo/output.c
new file mode 100644
index 0000000..447975e
--- /dev/null
+++ b/dep/termbox_next/src/demo/output.c
@@ -0,0 +1,156 @@
+#include <stdio.h>
+#include <string.h>
+#include "../termbox.h"
+
+static const char chars[] = "nnnnnnnnnbbbbbbbbbuuuuuuuuuBBBBBBBBB";
+
+static const uint32_t all_attrs[] =
+{
+	0,
+	TB_BOLD,
+	TB_UNDERLINE,
+	TB_BOLD | TB_UNDERLINE,
+};
+
+static int next_char(int current)
+{
+	current++;
+
+	if (!chars[current])
+	{
+		current = 0;
+	}
+
+	return current;
+}
+
+static void draw_line(int x, int y, uint32_t bg)
+{
+	int a, c;
+	int current_char = 0;
+
+	for (a = 0; a < 4; a++)
+	{
+		for (c = TB_DEFAULT; c <= TB_WHITE; c++)
+		{
+			uint32_t fg = all_attrs[a] | c;
+			tb_change_cell(x, y, chars[current_char], fg, bg);
+			current_char = next_char(current_char);
+			x++;
+		}
+	}
+}
+
+static void print_combinations_table(int sx, int sy, const uint32_t* attrs,
+	int attrs_n)
+{
+	int i, c;
+
+	for (i = 0; i < attrs_n; i++)
+	{
+		for (c = TB_DEFAULT; c <= TB_WHITE; c++)
+		{
+			uint32_t bg = attrs[i] | c;
+			draw_line(sx, sy, bg);
+			sy++;
+		}
+	}
+}
+
+static void draw_all()
+{
+	tb_clear();
+
+	tb_select_output_mode(TB_OUTPUT_NORMAL);
+	static const uint32_t col1[] = {0, TB_BOLD};
+	static const uint32_t col2[] = {TB_REVERSE};
+	print_combinations_table(1, 1, col1, 2);
+	print_combinations_table(2 + strlen(chars), 1, col2, 1);
+	tb_present();
+
+	tb_select_output_mode(TB_OUTPUT_GRAYSCALE);
+	int c, x, y;
+
+	for (x = 0, y = 23; x < 24; ++x)
+	{
+		tb_change_cell(x, y, '@', x, 0);
+		tb_change_cell(x + 25, y, ' ', 0, x);
+	}
+
+	tb_present();
+
+	tb_select_output_mode(TB_OUTPUT_216);
+	y++;
+
+	for (c = 0, x = 0; c < 216; ++c, ++x)
+	{
+		if (!(x % 24))
+		{
+			x = 0;
+			++y;
+		}
+
+		tb_change_cell(x, y, '@', c, 0);
+		tb_change_cell(x + 25, y, ' ', 0, c);
+	}
+
+	tb_present();
+
+	tb_select_output_mode(TB_OUTPUT_256);
+	y++;
+
+	for (c = 0, x = 0; c < 256; ++c, ++x)
+	{
+		if (!(x % 24))
+		{
+			x = 0;
+			++y;
+		}
+
+		tb_change_cell(x, y, '+', c | ((y & 1) ? TB_UNDERLINE : 0), 0);
+		tb_change_cell(x + 25, y, ' ', 0, c);
+	}
+
+	tb_present();
+}
+
+int main(int argc, char** argv)
+{
+	(void)argc;
+	(void)argv;
+	int ret = tb_init();
+
+	if (ret)
+	{
+		fprintf(stderr, "tb_init() failed with error code %d\n", ret);
+		return 1;
+	}
+
+	draw_all();
+
+	struct tb_event ev;
+
+	while (tb_poll_event(&ev))
+	{
+		switch (ev.type)
+		{
+			case TB_EVENT_KEY:
+				switch (ev.key)
+				{
+					case TB_KEY_ESC:
+						goto done;
+						break;
+				}
+
+				break;
+
+			case TB_EVENT_RESIZE:
+				draw_all();
+				break;
+		}
+	}
+
+done:
+	tb_shutdown();
+	return 0;
+}
diff --git a/dep/termbox_next/src/demo/paint.c b/dep/termbox_next/src/demo/paint.c
new file mode 100644
index 0000000..1f68c2d
--- /dev/null
+++ b/dep/termbox_next/src/demo/paint.c
@@ -0,0 +1,183 @@
+#include "../termbox.h"
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+static int curCol = 0;
+static int curRune = 0;
+static struct tb_cell* backbuf;
+static int bbw = 0, bbh = 0;
+
+static const uint32_t runes[] =
+{
+	0x20, // ' '
+	0x2591, // '░'
+	0x2592, // '▒'
+	0x2593, // '▓'
+	0x2588, // '█'
+};
+
+#define len(a) (sizeof(a)/sizeof(a[0]))
+
+static const uint32_t colors[] =
+{
+	TB_BLACK,
+	TB_RED,
+	TB_GREEN,
+	TB_YELLOW,
+	TB_BLUE,
+	TB_MAGENTA,
+	TB_CYAN,
+	TB_WHITE,
+};
+
+void updateAndDrawButtons(int* current, int x, int y, int mx, int my, int n,
+	void (*attrFunc)(int, uint32_t*, uint32_t*, uint32_t*))
+{
+	int lx = x;
+	int ly = y;
+
+	for (int i = 0; i < n; i++)
+	{
+		if (lx <= mx && mx <= lx + 3 && ly <= my && my <= ly + 1)
+		{
+			*current = i;
+		}
+
+		uint32_t r;
+		uint32_t fg, bg;
+		(*attrFunc)(i, &r, &fg, &bg);
+		tb_change_cell(lx + 0, ly + 0, r, fg, bg);
+		tb_change_cell(lx + 1, ly + 0, r, fg, bg);
+		tb_change_cell(lx + 2, ly + 0, r, fg, bg);
+		tb_change_cell(lx + 3, ly + 0, r, fg, bg);
+		tb_change_cell(lx + 0, ly + 1, r, fg, bg);
+		tb_change_cell(lx + 1, ly + 1, r, fg, bg);
+		tb_change_cell(lx + 2, ly + 1, r, fg, bg);
+		tb_change_cell(lx + 3, ly + 1, r, fg, bg);
+		lx += 4;
+	}
+
+	lx = x;
+	ly = y;
+
+	for (int i = 0; i < n; i++)
+	{
+		if (*current == i)
+		{
+			uint32_t fg = TB_RED | TB_BOLD;
+			uint32_t bg = TB_DEFAULT;
+			tb_change_cell(lx + 0, ly + 2, '^', fg, bg);
+			tb_change_cell(lx + 1, ly + 2, '^', fg, bg);
+			tb_change_cell(lx + 2, ly + 2, '^', fg, bg);
+			tb_change_cell(lx + 3, ly + 2, '^', fg, bg);
+		}
+
+		lx += 4;
+	}
+}
+
+void runeAttrFunc(int i, uint32_t* r, uint32_t* fg, uint32_t* bg)
+{
+	*r = runes[i];
+	*fg = TB_DEFAULT;
+	*bg = TB_DEFAULT;
+}
+
+void colorAttrFunc(int i, uint32_t* r, uint32_t* fg, uint32_t* bg)
+{
+	*r = ' ';
+	*fg = TB_DEFAULT;
+	*bg = colors[i];
+}
+
+void updateAndRedrawAll(int mx, int my)
+{
+	tb_clear();
+
+	if (mx != -1 && my != -1)
+	{
+		backbuf[bbw * my + mx].ch = runes[curRune];
+		backbuf[bbw * my + mx].fg = colors[curCol];
+	}
+
+	memcpy(tb_cell_buffer(), backbuf, sizeof(struct tb_cell)*bbw * bbh);
+	int h = tb_height();
+	updateAndDrawButtons(&curRune, 0, 0, mx, my, len(runes), runeAttrFunc);
+	updateAndDrawButtons(&curCol, 0, h - 3, mx, my, len(colors), colorAttrFunc);
+	tb_present();
+}
+
+void reallocBackBuffer(int w, int h)
+{
+	bbw = w;
+	bbh = h;
+
+	if (backbuf)
+	{
+		free(backbuf);
+	}
+
+	backbuf = calloc(sizeof(struct tb_cell), w * h);
+}
+
+int main(int argv, char** argc)
+{
+	(void)argc;
+	(void)argv;
+	int code = tb_init();
+
+	if (code < 0)
+	{
+		fprintf(stderr, "termbox init failed, code: %d\n", code);
+		return -1;
+	}
+
+	tb_select_input_mode(TB_INPUT_ESC | TB_INPUT_MOUSE);
+	int w = tb_width();
+	int h = tb_height();
+	reallocBackBuffer(w, h);
+	updateAndRedrawAll(-1, -1);
+
+	for (;;)
+	{
+		struct tb_event ev;
+		int mx = -1;
+		int my = -1;
+		int t = tb_poll_event(&ev);
+
+		if (t == -1)
+		{
+			tb_shutdown();
+			fprintf(stderr, "termbox poll event error\n");
+			return -1;
+		}
+
+		switch (t)
+		{
+			case TB_EVENT_KEY:
+				if (ev.key == TB_KEY_ESC)
+				{
+					tb_shutdown();
+					return 0;
+				}
+
+				break;
+
+			case TB_EVENT_MOUSE:
+				if (ev.key == TB_KEY_MOUSE_LEFT)
+				{
+					mx = ev.x;
+					my = ev.y;
+				}
+
+				break;
+
+			case TB_EVENT_RESIZE:
+				reallocBackBuffer(ev.w, ev.h);
+				break;
+		}
+
+		updateAndRedrawAll(mx, my);
+	}
+}
diff --git a/dep/termbox_next/src/demo/truecolor.c b/dep/termbox_next/src/demo/truecolor.c
new file mode 100644
index 0000000..33609fd
--- /dev/null
+++ b/dep/termbox_next/src/demo/truecolor.c
@@ -0,0 +1,69 @@
+#include "termbox.h"
+
+int main()
+{
+	tb_init();
+	tb_select_output_mode(TB_OUTPUT_TRUECOLOR);
+	int w = tb_width();
+	int h = tb_height();
+	uint32_t bg = 0x000000, fg = 0x000000;
+	tb_clear();
+	int z = 0;
+
+	for (int y = 1; y < h; y++)
+	{
+		for (int x = 1; x < w; x++)
+		{
+			uint32_t ch;
+			utf8_char_to_unicode(&ch, "x");
+			fg = 0;
+
+			if (z % 2 == 0)
+			{
+				fg |= TB_BOLD;
+			}
+
+			if (z % 3 == 0)
+			{
+				fg |= TB_UNDERLINE;
+			}
+
+			if (z % 5 == 0)
+			{
+				fg |= TB_REVERSE;
+			}
+
+			tb_change_cell(x, y, ch, fg, bg);
+			bg += 0x000101;
+			z++;
+		}
+
+		bg += 0x080000;
+
+		if (bg > 0xFFFFFF)
+		{
+			bg = 0;
+		}
+	}
+
+	tb_present();
+
+	while (1)
+	{
+		struct tb_event ev;
+		int t = tb_poll_event(&ev);
+
+		if (t == -1)
+		{
+			break;
+		}
+
+		if (t == TB_EVENT_KEY)
+		{
+			break;
+		}
+	}
+
+	tb_shutdown();
+	return 0;
+}
diff --git a/dep/termbox_next/src/input.c b/dep/termbox_next/src/input.c
new file mode 100644
index 0000000..2d3f84d
--- /dev/null
+++ b/dep/termbox_next/src/input.c
@@ -0,0 +1,319 @@
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+
+#include "term.h"
+
+#define BUFFER_SIZE_MAX 16
+
+// if s1 starts with s2 returns 1, else 0
+static int starts_with(const char* s1, const char* s2)
+{
+	// nice huh?
+	while (*s2)
+	{
+		if (*s1++ != *s2++)
+		{
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+static int parse_mouse_event(struct tb_event* event, const char* buf, int len)
+{
+	if ((len >= 6) && starts_with(buf, "\033[M"))
+	{
+		// X10 mouse encoding, the simplest one
+		// \033 [ M Cb Cx Cy
+		int b = buf[3] - 32;
+
+		switch (b & 3)
+		{
+			case 0:
+				if ((b & 64) != 0)
+				{
+					event->key = TB_KEY_MOUSE_WHEEL_UP;
+				}
+				else
+				{
+					event->key = TB_KEY_MOUSE_LEFT;
+				}
+
+				break;
+
+			case 1:
+				if ((b & 64) != 0)
+				{
+					event->key = TB_KEY_MOUSE_WHEEL_DOWN;
+				}
+				else
+				{
+					event->key = TB_KEY_MOUSE_MIDDLE;
+				}
+
+				break;
+
+			case 2:
+				event->key = TB_KEY_MOUSE_RIGHT;
+				break;
+
+			case 3:
+				event->key = TB_KEY_MOUSE_RELEASE;
+				break;
+
+			default:
+				return -6;
+		}
+
+		event->type = TB_EVENT_MOUSE; // TB_EVENT_KEY by default
+
+		if ((b & 32) != 0)
+		{
+			event->mod |= TB_MOD_MOTION;
+		}
+
+		// the coord is 1,1 for upper left
+		event->x = (uint8_t)buf[4] - 1 - 32;
+		event->y = (uint8_t)buf[5] - 1 - 32;
+		return 6;
+	}
+	else if (starts_with(buf, "\033[<") || starts_with(buf, "\033["))
+	{
+		// xterm 1006 extended mode or urxvt 1015 extended mode
+		// xterm: \033 [ < Cb ; Cx ; Cy (M or m)
+		// urxvt: \033 [ Cb ; Cx ; Cy M
+		int i, mi = -1, starti = -1;
+		int isM, isU, s1 = -1, s2 = -1;
+		int n1 = 0, n2 = 0, n3 = 0;
+
+		for (i = 0; i < len; i++)
+		{
+			// We search the first (s1) and the last (s2) ';'
+			if (buf[i] == ';')
+			{
+				if (s1 == -1)
+				{
+					s1 = i;
+				}
+
+				s2 = i;
+			}
+
+			// We search for the first 'm' or 'M'
+			if ((buf[i] == 'm' || buf[i] == 'M') && mi == -1)
+			{
+				mi = i;
+				break;
+			}
+		}
+
+		if (mi == -1)
+		{
+			return 0;
+		}
+
+		// whether it's a capital M or not
+		isM = (buf[mi] == 'M');
+
+		if (buf[2] == '<')
+		{
+			isU = 0;
+			starti = 3;
+		}
+		else
+		{
+			isU = 1;
+			starti = 2;
+		}
+
+		if (s1 == -1 || s2 == -1 || s1 == s2)
+		{
+			return 0;
+		}
+
+		n1 = strtoul(&buf[starti], NULL, 10);
+		n2 = strtoul(&buf[s1 + 1], NULL, 10);
+		n3 = strtoul(&buf[s2 + 1], NULL, 10);
+
+		if (isU)
+		{
+			n1 -= 32;
+		}
+
+		switch (n1 & 3)
+		{
+			case 0:
+				if ((n1 & 64) != 0)
+				{
+					event->key = TB_KEY_MOUSE_WHEEL_UP;
+				}
+				else
+				{
+					event->key = TB_KEY_MOUSE_LEFT;
+				}
+
+				break;
+
+			case 1:
+				if ((n1 & 64) != 0)
+				{
+					event->key = TB_KEY_MOUSE_WHEEL_DOWN;
+				}
+				else
+				{
+					event->key = TB_KEY_MOUSE_MIDDLE;
+				}
+
+				break;
+
+			case 2:
+				event->key = TB_KEY_MOUSE_RIGHT;
+				break;
+
+			case 3:
+				event->key = TB_KEY_MOUSE_RELEASE;
+				break;
+
+			default:
+				return mi + 1;
+		}
+
+		if (!isM)
+		{
+			// on xterm mouse release is signaled by lowercase m
+			event->key = TB_KEY_MOUSE_RELEASE;
+		}
+
+		event->type = TB_EVENT_MOUSE; // TB_EVENT_KEY by default
+
+		if ((n1 & 32) != 0)
+		{
+			event->mod |= TB_MOD_MOTION;
+		}
+
+		event->x = (uint8_t)n2 - 1;
+		event->y = (uint8_t)n3 - 1;
+		return mi + 1;
+	}
+
+	return 0;
+}
+
+// convert escape sequence to event, and return consumed bytes on success (failure == 0)
+static int parse_escape_seq(struct tb_event* event, const char* buf, int len)
+{
+	int mouse_parsed = parse_mouse_event(event, buf, len);
+
+	if (mouse_parsed != 0)
+	{
+		return mouse_parsed;
+	}
+
+	// it's pretty simple here, find 'starts_with' match and return success, else return failure
+	int i;
+
+	for (i = 0; keys[i]; i++)
+	{
+		if (starts_with(buf, keys[i]))
+		{
+			event->ch = 0;
+			event->key = 0xFFFF - i;
+			return strlen(keys[i]);
+		}
+	}
+
+	return 0;
+}
+
+bool extract_event(struct tb_event* event, struct ringbuffer* inbuf,
+	int inputmode)
+{
+	char buf[BUFFER_SIZE_MAX + 1];
+	int nbytes = ringbuffer_data_size(inbuf);
+
+	if (nbytes > BUFFER_SIZE_MAX)
+	{
+		nbytes = BUFFER_SIZE_MAX;
+	}
+
+	if (nbytes == 0)
+	{
+		return false;
+	}
+
+	ringbuffer_read(inbuf, buf, nbytes);
+	buf[nbytes] = '\0';
+
+	if (buf[0] == '\033')
+	{
+		int n = parse_escape_seq(event, buf, nbytes);
+
+		if (n != 0)
+		{
+			bool success = true;
+
+			if (n < 0)
+			{
+				success = false;
+				n = -n;
+			}
+
+			ringbuffer_pop(inbuf, 0, n);
+			return success;
+		}
+		else
+		{
+			// it's not escape sequence, then it's ALT or ESC, check inputmode
+			if (inputmode & TB_INPUT_ESC)
+			{
+				// if we're in escape mode, fill ESC event, pop buffer, return success
+				event->ch = 0;
+				event->key = TB_KEY_ESC;
+				event->mod = 0;
+				ringbuffer_pop(inbuf, 0, 1);
+				return true;
+			}
+			else if (inputmode & TB_INPUT_ALT)
+			{
+				// if we're in alt mode, set ALT modifier to event and redo parsing
+				event->mod = TB_MOD_ALT;
+				ringbuffer_pop(inbuf, 0, 1);
+				return extract_event(event, inbuf, inputmode);
+			}
+
+			assert(!"never got here");
+		}
+	}
+
+	//  if we're here, this is not an escape sequence and not an alt sequence
+	//  so, it's a FUNCTIONAL KEY or a UNICODE character
+
+	// first of all check if it's a functional key*/
+	if ((unsigned char)buf[0] <= TB_KEY_SPACE ||
+		(unsigned char)buf[0] == TB_KEY_BACKSPACE2)
+	{
+		// fill event, pop buffer, return success
+		event->ch = 0;
+		event->key = (uint16_t)buf[0];
+		ringbuffer_pop(inbuf, 0, 1);
+		return true;
+	}
+
+	// feh... we got utf8 here
+
+	// check if there is all bytes
+	if (nbytes >= utf8_char_length(buf[0]))
+	{
+		// everything ok, fill event, pop buffer, return success
+		utf8_char_to_unicode(&event->ch, buf);
+		event->key = 0;
+		ringbuffer_pop(inbuf, 0, utf8_char_length(buf[0]));
+		return true;
+	}
+
+	return false;
+}
diff --git a/dep/termbox_next/src/memstream.c b/dep/termbox_next/src/memstream.c
new file mode 100644
index 0000000..d218b54
--- /dev/null
+++ b/dep/termbox_next/src/memstream.c
@@ -0,0 +1,36 @@
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include "memstream.h"
+
+void memstream_init(struct memstream* s, int fd, void* buffer, size_t len)
+{
+	s->file = fd;
+	s->data = buffer;
+	s->pos = 0;
+	s->capa = len;
+}
+
+void memstream_flush(struct memstream* s)
+{
+	write(s->file, s->data, s->pos);
+	s->pos = 0;
+}
+
+void memstream_write(struct memstream* s, void* source, size_t len)
+{
+	unsigned char* data = source;
+
+	if (s->pos + len > s->capa)
+	{
+		memstream_flush(s);
+	}
+
+	memcpy(s->data + s->pos, data, len);
+	s->pos += len;
+}
+
+void memstream_puts(struct memstream* s, const char* str)
+{
+	memstream_write(s, (void*) str, strlen(str));
+}
diff --git a/dep/termbox_next/src/memstream.h b/dep/termbox_next/src/memstream.h
new file mode 100644
index 0000000..c5d864a
--- /dev/null
+++ b/dep/termbox_next/src/memstream.h
@@ -0,0 +1,20 @@
+#ifndef H_MEMSTREAM
+#define H_MEMSTREAM
+
+#include <stddef.h>
+#include <stdio.h>
+
+struct memstream
+{
+	size_t  pos;
+	size_t capa;
+	int file;
+	unsigned char* data;
+};
+
+void memstream_init(struct memstream* s, int fd, void* buffer, size_t len);
+void memstream_flush(struct memstream* s);
+void memstream_write(struct memstream* s, void* source, size_t len);
+void memstream_puts(struct memstream* s, const char* str);
+
+#endif
diff --git a/dep/termbox_next/src/ringbuffer.c b/dep/termbox_next/src/ringbuffer.c
new file mode 100644
index 0000000..a8de0f6
--- /dev/null
+++ b/dep/termbox_next/src/ringbuffer.c
@@ -0,0 +1,195 @@
+#include "ringbuffer.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stddef.h> // for ptrdiff_t
+
+int init_ringbuffer(struct ringbuffer* r, size_t size)
+{
+	r->buf = (char*)malloc(size);
+
+	if (!r->buf)
+	{
+		return ERINGBUFFER_ALLOC_FAIL;
+	}
+
+	r->size = size;
+	clear_ringbuffer(r);
+
+	return 0;
+}
+
+void free_ringbuffer(struct ringbuffer* r)
+{
+	free(r->buf);
+}
+
+void clear_ringbuffer(struct ringbuffer* r)
+{
+	r->begin = 0;
+	r->end = 0;
+}
+
+size_t ringbuffer_free_space(struct ringbuffer* r)
+{
+	if (r->begin == 0 && r->end == 0)
+	{
+		return r->size;
+	}
+
+	if (r->begin < r->end)
+	{
+		return r->size - (r->end - r->begin) - 1;
+	}
+	else
+	{
+		return r->begin - r->end - 1;
+	}
+}
+
+size_t ringbuffer_data_size(struct ringbuffer* r)
+{
+	if (r->begin == 0 && r->end == 0)
+	{
+		return 0;
+	}
+
+	if (r->begin <= r->end)
+	{
+		return r->end - r->begin + 1;
+	}
+	else
+	{
+		return r->size - (r->begin - r->end) + 1;
+	}
+}
+
+
+void ringbuffer_push(struct ringbuffer* r, const void* data, size_t size)
+{
+	if (ringbuffer_free_space(r) < size)
+	{
+		return;
+	}
+
+	if (r->begin == 0 && r->end == 0)
+	{
+		memcpy(r->buf, data, size);
+		r->begin = r->buf;
+		r->end = r->buf + size - 1;
+		return;
+	}
+
+	r->end++;
+
+	if (r->begin < r->end)
+	{
+		if ((size_t)(r->buf + (ptrdiff_t)r->size - r->begin) >= size)
+		{
+			// we can fit without cut
+			memcpy(r->end, data, size);
+			r->end += size - 1;
+		}
+		else
+		{
+			// make a cut
+			size_t s = r->buf + r->size - r->end;
+			memcpy(r->end, data, s);
+			size -= s;
+			memcpy(r->buf, (char*)data + s, size);
+			r->end = r->buf + size - 1;
+		}
+	}
+	else
+	{
+		memcpy(r->end, data, size);
+		r->end += size - 1;
+	}
+}
+
+void ringbuffer_pop(struct ringbuffer* r, void* data, size_t size)
+{
+	if (ringbuffer_data_size(r) < size)
+	{
+		return;
+	}
+
+	int need_clear = 0;
+
+	if (ringbuffer_data_size(r) == size)
+	{
+		need_clear = 1;
+	}
+
+	if (r->begin < r->end)
+	{
+		if (data)
+		{
+			memcpy(data, r->begin, size);
+		}
+
+		r->begin += size;
+	}
+	else
+	{
+		if ((size_t)(r->buf + (ptrdiff_t)r->size - r->begin) >= size)
+		{
+			if (data)
+			{
+				memcpy(data, r->begin, size);
+			}
+
+			r->begin += size;
+		}
+		else
+		{
+			size_t s = r->buf + r->size - r->begin;
+
+			if (data)
+			{
+				memcpy(data, r->begin, s);
+			}
+
+			size -= s;
+
+			if (data)
+			{
+				memcpy((char*)data + s, r->buf, size);
+			}
+
+			r->begin = r->buf + size;
+		}
+	}
+
+	if (need_clear)
+	{
+		clear_ringbuffer(r);
+	}
+}
+
+void ringbuffer_read(struct ringbuffer* r, void* data, size_t size)
+{
+	if (ringbuffer_data_size(r) < size)
+	{
+		return;
+	}
+
+	if (r->begin < r->end)
+	{
+		memcpy(data, r->begin, size);
+	}
+	else
+	{
+		if ((size_t)(r->buf + (ptrdiff_t)r->size - r->begin) >= size)
+		{
+			memcpy(data, r->begin, size);
+		}
+		else
+		{
+			size_t s = r->buf + r->size - r->begin;
+			memcpy(data, r->begin, s);
+			size -= s;
+			memcpy((char*)data + s, r->buf, size);
+		}
+	}
+}
diff --git a/dep/termbox_next/src/ringbuffer.h b/dep/termbox_next/src/ringbuffer.h
new file mode 100644
index 0000000..9a8b0d6
--- /dev/null
+++ b/dep/termbox_next/src/ringbuffer.h
@@ -0,0 +1,26 @@
+#ifndef H_RINGBUFFER
+#define H_RINGBUFFER
+
+#include <stddef.h>
+
+#define ERINGBUFFER_ALLOC_FAIL -1
+
+struct ringbuffer
+{
+	char* buf;
+	size_t size;
+
+	char* begin;
+	char* end;
+};
+
+int init_ringbuffer(struct ringbuffer* r, size_t size);
+void free_ringbuffer(struct ringbuffer* r);
+void clear_ringbuffer(struct ringbuffer* r);
+size_t ringbuffer_free_space(struct ringbuffer* r);
+size_t ringbuffer_data_size(struct ringbuffer* r);
+void ringbuffer_push(struct ringbuffer* r, const void* data, size_t size);
+void ringbuffer_pop(struct ringbuffer* r, void* data, size_t size);
+void ringbuffer_read(struct ringbuffer* r, void* data, size_t size);
+
+#endif
diff --git a/dep/termbox_next/src/term.c b/dep/termbox_next/src/term.c
new file mode 100644
index 0000000..c94f394
--- /dev/null
+++ b/dep/termbox_next/src/term.c
@@ -0,0 +1,412 @@
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#include "term.h"
+#define ENTER_MOUSE_SEQ "\x1b[?1000h\x1b[?1002h\x1b[?1015h\x1b[?1006h"
+#define EXIT_MOUSE_SEQ "\x1b[?1006l\x1b[?1015l\x1b[?1002l\x1b[?1000l"
+
+#define EUNSUPPORTED_TERM -1
+
+// rxvt-256color
+static const char* rxvt_256color_keys[] =
+{
+	"\033[11~", "\033[12~", "\033[13~", "\033[14~", "\033[15~", "\033[17~",
+	"\033[18~", "\033[19~", "\033[20~", "\033[21~", "\033[23~", "\033[24~",
+	"\033[2~", "\033[3~", "\033[7~", "\033[8~", "\033[5~", "\033[6~",
+	"\033[A", "\033[B", "\033[D", "\033[C", NULL
+};
+static const char* rxvt_256color_funcs[] =
+{
+	"\0337\033[?47h", "\033[2J\033[?47l\0338", "\033[?25h", "\033[?25l",
+	"\033[H\033[2J", "\033[m", "\033[4m", "\033[1m", "\033[5m", "\033[7m",
+	"\033=", "\033>", ENTER_MOUSE_SEQ, EXIT_MOUSE_SEQ,
+};
+
+// Eterm
+static const char* eterm_keys[] =
+{
+	"\033[11~", "\033[12~", "\033[13~", "\033[14~", "\033[15~", "\033[17~",
+	"\033[18~", "\033[19~", "\033[20~", "\033[21~", "\033[23~", "\033[24~",
+	"\033[2~", "\033[3~", "\033[7~", "\033[8~", "\033[5~", "\033[6~",
+	"\033[A", "\033[B", "\033[D", "\033[C", NULL
+};
+static const char* eterm_funcs[] =
+{
+	"\0337\033[?47h", "\033[2J\033[?47l\0338", "\033[?25h", "\033[?25l",
+	"\033[H\033[2J", "\033[m", "\033[4m", "\033[1m", "\033[5m", "\033[7m",
+	"", "", "", "",
+};
+
+// screen
+static const char* screen_keys[] =
+{
+	"\033OP", "\033OQ", "\033OR", "\033OS", "\033[15~", "\033[17~",
+	"\033[18~", "\033[19~", "\033[20~", "\033[21~", "\033[23~", "\033[24~",
+	"\033[2~", "\033[3~", "\033[1~", "\033[4~", "\033[5~", "\033[6~",
+	"\033OA", "\033OB", "\033OD", "\033OC", NULL
+};
+static const char* screen_funcs[] =
+{
+	"\033[?1049h", "\033[?1049l", "\033[34h\033[?25h", "\033[?25l",
+	"\033[H\033[J", "\033[m", "\033[4m", "\033[1m", "\033[5m", "\033[7m",
+	"\033[?1h\033=", "\033[?1l\033>", ENTER_MOUSE_SEQ, EXIT_MOUSE_SEQ,
+};
+
+// rxvt-unicode
+static const char* rxvt_unicode_keys[] =
+{
+	"\033[11~", "\033[12~", "\033[13~", "\033[14~", "\033[15~", "\033[17~",
+	"\033[18~", "\033[19~", "\033[20~", "\033[21~", "\033[23~", "\033[24~",
+	"\033[2~", "\033[3~", "\033[7~", "\033[8~", "\033[5~", "\033[6~",
+	"\033[A", "\033[B", "\033[D", "\033[C", NULL
+};
+static const char* rxvt_unicode_funcs[] =
+{
+	"\033[?1049h", "\033[r\033[?1049l", "\033[?25h", "\033[?25l",
+	"\033[H\033[2J", "\033[m\033(B", "\033[4m", "\033[1m", "\033[5m",
+	"\033[7m", "\033=", "\033>", ENTER_MOUSE_SEQ, EXIT_MOUSE_SEQ,
+};
+
+// linux
+static const char* linux_keys[] =
+{
+	"\033[[A", "\033[[B", "\033[[C", "\033[[D", "\033[[E", "\033[17~",
+	"\033[18~", "\033[19~", "\033[20~", "\033[21~", "\033[23~", "\033[24~",
+	"\033[2~", "\033[3~", "\033[1~", "\033[4~", "\033[5~", "\033[6~",
+	"\033[A", "\033[B", "\033[D", "\033[C", NULL
+};
+static const char* linux_funcs[] =
+{
+	"", "", "\033[?25h\033[?0c", "\033[?25l\033[?1c", "\033[H\033[J",
+	"\033[0;10m", "\033[4m", "\033[1m", "\033[5m", "\033[7m", "", "", "", "",
+};
+
+// xterm
+static const char* xterm_keys[] =
+{
+	"\033OP", "\033OQ", "\033OR", "\033OS", "\033[15~", "\033[17~", "\033[18~",
+	"\033[19~", "\033[20~", "\033[21~", "\033[23~", "\033[24~", "\033[2~",
+	"\033[3~", "\033OH", "\033OF", "\033[5~", "\033[6~", "\033OA", "\033OB",
+	"\033OD", "\033OC", NULL
+};
+static const char* xterm_funcs[] =
+{
+	"\033[?1049h", "\033[?1049l", "\033[?12l\033[?25h", "\033[?25l",
+	"\033[H\033[2J", "\033(B\033[m", "\033[4m", "\033[1m", "\033[5m", "\033[7m",
+	"\033[?1h\033=", "\033[?1l\033>", ENTER_MOUSE_SEQ, EXIT_MOUSE_SEQ,
+};
+
+struct term
+{
+	const char* name;
+	const char** keys;
+	const char** funcs;
+};
+
+static struct term terms[] =
+{
+	{"rxvt-256color", rxvt_256color_keys, rxvt_256color_funcs},
+	{"Eterm", eterm_keys, eterm_funcs},
+	{"screen", screen_keys, screen_funcs},
+	{"rxvt-unicode", rxvt_unicode_keys, rxvt_unicode_funcs},
+	{"linux", linux_keys, linux_funcs},
+	{"xterm", xterm_keys, xterm_funcs},
+	{0, 0, 0},
+};
+
+static int init_from_terminfo = 0;
+const char** keys;
+const char** funcs;
+
+static int try_compatible(const char* term, const char* name,
+	const char** tkeys, const char** tfuncs)
+{
+	if (strstr(term, name))
+	{
+		keys = tkeys;
+		funcs = tfuncs;
+		return 0;
+	}
+
+	return EUNSUPPORTED_TERM;
+}
+
+static int init_term_builtin(void)
+{
+	int i;
+	const char* term = getenv("TERM");
+
+	if (term)
+	{
+		for (i = 0; terms[i].name; i++)
+		{
+			if (!strcmp(terms[i].name, term))
+			{
+				keys = terms[i].keys;
+				funcs = terms[i].funcs;
+				return 0;
+			}
+		}
+
+		// let's do some heuristic, maybe it's a compatible terminal
+		if (try_compatible(term, "xterm", xterm_keys, xterm_funcs) == 0)
+		{
+			return 0;
+		}
+
+		if (try_compatible(term, "rxvt", rxvt_unicode_keys, rxvt_unicode_funcs) == 0)
+		{
+			return 0;
+		}
+
+		if (try_compatible(term, "linux", linux_keys, linux_funcs) == 0)
+		{
+			return 0;
+		}
+
+		if (try_compatible(term, "Eterm", eterm_keys, eterm_funcs) == 0)
+		{
+			return 0;
+		}
+
+		if (try_compatible(term, "screen", screen_keys, screen_funcs) == 0)
+		{
+			return 0;
+		}
+
+		// let's assume that 'cygwin' is xterm compatible
+		if (try_compatible(term, "cygwin", xterm_keys, xterm_funcs) == 0)
+		{
+			return 0;
+		}
+	}
+
+	return EUNSUPPORTED_TERM;
+}
+
+// terminfo
+static char* read_file(const char* file)
+{
+	FILE* f = fopen(file, "rb");
+
+	if (!f)
+	{
+		return 0;
+	}
+
+	struct stat st;
+
+	if (fstat(fileno(f), &st) != 0)
+	{
+		fclose(f);
+		return 0;
+	}
+
+	char* data = malloc(st.st_size);
+
+	if (!data)
+	{
+		fclose(f);
+		return 0;
+	}
+
+	if (fread(data, 1, st.st_size, f) != (size_t)st.st_size)
+	{
+		fclose(f);
+		free(data);
+		return 0;
+	}
+
+	fclose(f);
+	return data;
+}
+
+static char* terminfo_try_path(const char* path, const char* term)
+{
+	char tmp[4096];
+	snprintf(tmp, sizeof(tmp), "%s/%c/%s", path, term[0], term);
+	tmp[sizeof(tmp) - 1] = '\0';
+	char* data = read_file(tmp);
+
+	if (data)
+	{
+		return data;
+	}
+
+	// fallback to darwin specific dirs structure
+	snprintf(tmp, sizeof(tmp), "%s/%x/%s", path, term[0], term);
+	tmp[sizeof(tmp) - 1] = '\0';
+	return read_file(tmp);
+}
+
+static char* load_terminfo(void)
+{
+	char tmp[4096];
+	const char* term = getenv("TERM");
+
+	if (!term)
+	{
+		return 0;
+	}
+
+	// if TERMINFO is set, no other directory should be searched
+	const char* terminfo = getenv("TERMINFO");
+
+	if (terminfo)
+	{
+		return terminfo_try_path(terminfo, term);
+	}
+
+	// next, consider ~/.terminfo
+	const char* home = getenv("HOME");
+
+	if (home)
+	{
+		snprintf(tmp, sizeof(tmp), "%s/.terminfo", home);
+		tmp[sizeof(tmp) - 1] = '\0';
+		char* data = terminfo_try_path(tmp, term);
+
+		if (data)
+		{
+			return data;
+		}
+	}
+
+	// next, TERMINFO_DIRS
+	const char* dirs = getenv("TERMINFO_DIRS");
+
+	if (dirs)
+	{
+		snprintf(tmp, sizeof(tmp), "%s", dirs);
+		tmp[sizeof(tmp) - 1] = '\0';
+		char* dir = strtok(tmp, ":");
+
+		while (dir)
+		{
+			const char* cdir = dir;
+
+			if (strcmp(cdir, "") == 0)
+			{
+				cdir = "/usr/share/terminfo";
+			}
+
+			char* data = terminfo_try_path(cdir, term);
+
+			if (data)
+			{
+				return data;
+			}
+
+			dir = strtok(0, ":");
+		}
+	}
+
+	// fallback to /usr/share/terminfo
+	return terminfo_try_path("/usr/share/terminfo", term);
+}
+
+#define TI_MAGIC 0432
+#define TI_ALT_MAGIC 542
+#define TI_HEADER_LENGTH 12
+#define TB_KEYS_NUM 22
+
+static const char* terminfo_copy_string(char* data, int str, int table)
+{
+	const int16_t off = *(int16_t*)(data + str);
+	const char* src = data + table + off;
+	int len = strlen(src);
+	char* dst = malloc(len + 1);
+	strcpy(dst, src);
+	return dst;
+}
+
+const int16_t ti_funcs[] =
+{
+	28, 40, 16, 13, 5, 39, 36, 27, 26, 34, 89, 88,
+};
+
+const int16_t ti_keys[] =
+{
+	// apparently not a typo; 67 is F10 for whatever reason
+	66, 68, 69, 70, 71, 72, 73, 74, 75, 67, 216, 217, 77, 59, 76, 164, 82,
+	81, 87, 61, 79, 83,
+};
+
+int init_term(void)
+{
+	int i;
+	char* data = load_terminfo();
+
+	if (!data)
+	{
+		init_from_terminfo = 0;
+		return init_term_builtin();
+	}
+
+	int16_t* header = (int16_t*)data;
+
+	const int number_sec_len = header[0] == TI_ALT_MAGIC ? 4 : 2;
+
+	if ((header[1] + header[2]) % 2)
+	{
+		// old quirk to align everything on word boundaries
+		header[2] += 1;
+	}
+
+	const int str_offset = TI_HEADER_LENGTH +
+		header[1] + header[2] +	number_sec_len * header[3];
+	const int table_offset = str_offset + 2 * header[4];
+
+	keys = malloc(sizeof(const char*) * (TB_KEYS_NUM + 1));
+
+	for (i = 0; i < TB_KEYS_NUM; i++)
+	{
+		keys[i] = terminfo_copy_string(data,
+				str_offset + 2 * ti_keys[i], table_offset);
+	}
+
+	keys[i] = NULL;
+
+	funcs = malloc(sizeof(const char*) * T_FUNCS_NUM);
+
+	// the last two entries are reserved for mouse. because the table offset is
+	// not there, the two entries have to fill in manually
+	for (i = 0; i < T_FUNCS_NUM - 2; i++)
+	{
+		funcs[i] = terminfo_copy_string(data,
+				str_offset + 2 * ti_funcs[i], table_offset);
+	}
+
+	funcs[T_FUNCS_NUM - 2] = ENTER_MOUSE_SEQ;
+	funcs[T_FUNCS_NUM - 1] = EXIT_MOUSE_SEQ;
+	init_from_terminfo = 1;
+	free(data);
+	return 0;
+}
+
+void shutdown_term(void)
+{
+	if (init_from_terminfo)
+	{
+		int i;
+
+		for (i = 0; i < TB_KEYS_NUM; i++)
+		{
+			free((void*)keys[i]);
+		}
+
+		// the last two entries are reserved for mouse. because the table offset
+		// is not there, the two entries have to fill in manually and do not
+		// need to be freed.
+		for (i = 0; i < T_FUNCS_NUM - 2; i++)
+		{
+			free((void*)funcs[i]);
+		}
+
+		free(keys);
+		free(funcs);
+	}
+}
diff --git a/dep/termbox_next/src/term.h b/dep/termbox_next/src/term.h
new file mode 100644
index 0000000..8f4d93d
--- /dev/null
+++ b/dep/termbox_next/src/term.h
@@ -0,0 +1,38 @@
+#ifndef H_TERM
+#define H_TERM
+
+#include "termbox.h"
+#include "ringbuffer.h"
+#include <stdbool.h>
+
+#define EUNSUPPORTED_TERM -1
+
+enum
+{
+	T_ENTER_CA,
+	T_EXIT_CA,
+	T_SHOW_CURSOR,
+	T_HIDE_CURSOR,
+	T_CLEAR_SCREEN,
+	T_SGR0,
+	T_UNDERLINE,
+	T_BOLD,
+	T_BLINK,
+	T_REVERSE,
+	T_ENTER_KEYPAD,
+	T_EXIT_KEYPAD,
+	T_ENTER_MOUSE,
+	T_EXIT_MOUSE,
+	T_FUNCS_NUM,
+};
+
+extern const char** keys;
+extern const char** funcs;
+
+// true on success, false on failure
+bool extract_event(struct tb_event* event, struct ringbuffer* inbuf,
+	int inputmode);
+int init_term(void);
+void shutdown_term(void);
+
+#endif
diff --git a/dep/termbox_next/src/termbox.c b/dep/termbox_next/src/termbox.c
new file mode 100644
index 0000000..72a4335
--- /dev/null
+++ b/dep/termbox_next/src/termbox.c
@@ -0,0 +1,885 @@
+#include "term.h"
+#include "termbox.h"
+#include "memstream.h"
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <fcntl.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <sys/select.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <termios.h>
+#include <unistd.h>
+#include <wchar.h>
+
+struct cellbuf
+{
+	int width;
+	int height;
+	struct tb_cell* cells;
+};
+
+#define CELL(buf, x, y) (buf)->cells[(y) * (buf)->width + (x)]
+#define IS_CURSOR_HIDDEN(cx, cy) (cx == -1 || cy == -1)
+#define LAST_COORD_INIT -1
+
+static struct termios orig_tios;
+
+static struct cellbuf back_buffer;
+static struct cellbuf front_buffer;
+static unsigned char write_buffer_data[32 * 1024];
+static struct memstream write_buffer;
+
+static int termw = -1;
+static int termh = -1;
+
+static int inputmode = TB_INPUT_ESC;
+static int outputmode = TB_OUTPUT_NORMAL;
+
+static struct ringbuffer inbuf;
+
+static int out;
+static FILE* in;
+
+static int out_fileno;
+static int in_fileno;
+
+static int winch_fds[2];
+
+static int lastx = LAST_COORD_INIT;
+static int lasty = LAST_COORD_INIT;
+static int cursor_x = -1;
+static int cursor_y = -1;
+
+static uint32_t background = TB_DEFAULT;
+static uint32_t foreground = TB_DEFAULT;
+
+static void write_cursor(int x, int y);
+static void write_sgr(uint32_t fg, uint32_t bg);
+
+static void cellbuf_init(struct cellbuf* buf, int width, int height);
+static void cellbuf_resize(struct cellbuf* buf, int width, int height);
+static void cellbuf_clear(struct cellbuf* buf);
+static void cellbuf_free(struct cellbuf* buf);
+
+static void update_size(void);
+static void update_term_size(void);
+static void send_attr(uint32_t fg, uint32_t bg);
+static void send_char(int x, int y, uint32_t c);
+static void send_clear(void);
+static void sigwinch_handler(int xxx);
+static int wait_fill_event(struct tb_event* event, struct timeval* timeout);
+
+// may happen in a different thread
+static volatile int buffer_size_change_request;
+
+int tb_init_file(const char* name)
+{
+	out = open(name, O_WRONLY);
+	in = fopen(name, "r");
+
+	if (out == -1 || !in)
+	{
+		if (out != -1)
+		{
+			close(out);
+		}
+
+		if (in)
+		{
+			fclose(in);
+		}
+
+		return TB_EFAILED_TO_OPEN_TTY;
+	}
+
+	out_fileno = out;
+	in_fileno = fileno(in);
+
+	if (init_term() < 0)
+	{
+		close(out);
+		fclose(in);
+
+		return TB_EUNSUPPORTED_TERMINAL;
+	}
+
+	if (pipe(winch_fds) < 0)
+	{
+		close(out);
+		fclose(in);
+
+		return TB_EPIPE_TRAP_ERROR;
+	}
+
+	struct sigaction sa;
+
+	memset(&sa, 0, sizeof(sa));
+	sa.sa_handler = sigwinch_handler;
+	sa.sa_flags = 0;
+	sigaction(SIGWINCH, &sa, 0);
+	tcgetattr(out_fileno, &orig_tios);
+
+	struct termios tios;
+
+	memcpy(&tios, &orig_tios, sizeof(tios));
+	tios.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
+			| INLCR | IGNCR | ICRNL | IXON);
+	tios.c_oflag &= ~OPOST;
+	tios.c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
+	tios.c_cflag &= ~(CSIZE | PARENB);
+	tios.c_cflag |= CS8;
+	tios.c_cc[VMIN] = 0;
+	tios.c_cc[VTIME] = 0;
+	tcsetattr(out_fileno, TCSAFLUSH, &tios);
+
+	memstream_init(&write_buffer, out_fileno, write_buffer_data,
+		sizeof(write_buffer_data));
+	memstream_puts(&write_buffer, funcs[T_ENTER_CA]);
+	memstream_puts(&write_buffer, funcs[T_ENTER_KEYPAD]);
+	memstream_puts(&write_buffer, funcs[T_HIDE_CURSOR]);
+	send_clear();
+
+	update_term_size();
+	cellbuf_init(&back_buffer, termw, termh);
+	cellbuf_init(&front_buffer, termw, termh);
+	cellbuf_clear(&back_buffer);
+	cellbuf_clear(&front_buffer);
+	init_ringbuffer(&inbuf, 4096);
+	return 0;
+}
+
+int tb_init(void)
+{
+	return tb_init_file("/dev/tty");
+}
+
+void tb_shutdown(void)
+{
+	if (termw == -1)
+	{
+		fputs("tb_shutdown() should not be called twice.", stderr);
+		abort();
+	}
+
+	memstream_puts(&write_buffer, funcs[T_SHOW_CURSOR]);
+	memstream_puts(&write_buffer, funcs[T_SGR0]);
+	memstream_puts(&write_buffer, funcs[T_CLEAR_SCREEN]);
+	memstream_puts(&write_buffer, funcs[T_EXIT_CA]);
+	memstream_puts(&write_buffer, funcs[T_EXIT_KEYPAD]);
+	memstream_puts(&write_buffer, funcs[T_EXIT_MOUSE]);
+	memstream_flush(&write_buffer);
+	tcsetattr(out_fileno, TCSAFLUSH, &orig_tios);
+
+	shutdown_term();
+	close(out);
+	fclose(in);
+	close(winch_fds[0]);
+	close(winch_fds[1]);
+
+	cellbuf_free(&back_buffer);
+	cellbuf_free(&front_buffer);
+	free_ringbuffer(&inbuf);
+	termw = termh = -1;
+}
+
+void tb_present(void)
+{
+	int x, y, w, i;
+	struct tb_cell* back, *front;
+
+	// invalidate cursor position
+	lastx = LAST_COORD_INIT;
+	lasty = LAST_COORD_INIT;
+
+	if (buffer_size_change_request)
+	{
+		update_size();
+		buffer_size_change_request = 0;
+	}
+
+	for (y = 0; y < front_buffer.height; ++y)
+	{
+		for (x = 0; x < front_buffer.width;)
+		{
+			back = &CELL(&back_buffer, x, y);
+			front = &CELL(&front_buffer, x, y);
+			w = wcwidth(back->ch);
+
+			if (w < 1)
+			{
+				w = 1;
+			}
+
+			if (memcmp(back, front, sizeof(struct tb_cell)) == 0)
+			{
+				x += w;
+				continue;
+			}
+
+			memcpy(front, back, sizeof(struct tb_cell));
+			send_attr(back->fg, back->bg);
+
+			if (w > 1 && x >= front_buffer.width - (w - 1))
+			{
+				// Not enough room for wide ch, so send spaces
+				for (i = x; i < front_buffer.width; ++i)
+				{
+					send_char(i, y, ' ');
+				}
+			}
+			else
+			{
+				send_char(x, y, back->ch);
+
+				for (i = 1; i < w; ++i)
+				{
+					front = &CELL(&front_buffer, x + i, y);
+					front->ch = 0;
+					front->fg = back->fg;
+					front->bg = back->bg;
+				}
+			}
+
+			x += w;
+		}
+	}
+
+	if (!IS_CURSOR_HIDDEN(cursor_x, cursor_y))
+	{
+		write_cursor(cursor_x, cursor_y);
+	}
+
+	memstream_flush(&write_buffer);
+}
+
+void tb_set_cursor(int cx, int cy)
+{
+	if (IS_CURSOR_HIDDEN(cursor_x, cursor_y) && !IS_CURSOR_HIDDEN(cx, cy))
+	{
+		memstream_puts(&write_buffer, funcs[T_SHOW_CURSOR]);
+	}
+
+	if (!IS_CURSOR_HIDDEN(cursor_x, cursor_y) && IS_CURSOR_HIDDEN(cx, cy))
+	{
+		memstream_puts(&write_buffer, funcs[T_HIDE_CURSOR]);
+	}
+
+	cursor_x = cx;
+	cursor_y = cy;
+
+	if (!IS_CURSOR_HIDDEN(cursor_x, cursor_y))
+	{
+		write_cursor(cursor_x, cursor_y);
+	}
+}
+
+void tb_put_cell(int x, int y, const struct tb_cell* cell)
+{
+	if ((unsigned)x >= (unsigned)back_buffer.width)
+	{
+		return;
+	}
+
+	if ((unsigned)y >= (unsigned)back_buffer.height)
+	{
+		return;
+	}
+
+	CELL(&back_buffer, x, y) = *cell;
+}
+
+void tb_change_cell(int x, int y, uint32_t ch, uint32_t fg, uint32_t bg)
+{
+	struct tb_cell c = {ch, fg, bg};
+	tb_put_cell(x, y, &c);
+}
+
+void tb_blit(int x, int y, int w, int h, const struct tb_cell* cells)
+{
+	if (x + w < 0 || x >= back_buffer.width)
+	{
+		return;
+	}
+
+	if (y + h < 0 || y >= back_buffer.height)
+	{
+		return;
+	}
+
+	int xo = 0, yo = 0, ww = w, hh = h;
+
+	if (x < 0)
+	{
+		xo = -x;
+		ww -= xo;
+		x = 0;
+	}
+
+	if (y < 0)
+	{
+		yo = -y;
+		hh -= yo;
+		y = 0;
+	}
+
+	if (ww > back_buffer.width - x)
+	{
+		ww = back_buffer.width - x;
+	}
+
+	if (hh > back_buffer.height - y)
+	{
+		hh = back_buffer.height - y;
+	}
+
+	int sy;
+	struct tb_cell* dst = &CELL(&back_buffer, x, y);
+	const struct tb_cell* src = cells + yo * w + xo;
+	size_t size = sizeof(struct tb_cell) * ww;
+
+	for (sy = 0; sy < hh; ++sy)
+	{
+		memcpy(dst, src, size);
+		dst += back_buffer.width;
+		src += w;
+	}
+}
+
+struct tb_cell* tb_cell_buffer(void)
+{
+	return back_buffer.cells;
+}
+
+int tb_poll_event(struct tb_event* event)
+{
+	return wait_fill_event(event, 0);
+}
+
+int tb_peek_event(struct tb_event* event, int timeout)
+{
+	struct timeval tv;
+	tv.tv_sec = timeout / 1000;
+	tv.tv_usec = (timeout - (tv.tv_sec * 1000)) * 1000;
+	return wait_fill_event(event, &tv);
+}
+
+int tb_width(void)
+{
+	return termw;
+}
+
+int tb_height(void)
+{
+	return termh;
+}
+
+void tb_clear(void)
+{
+	if (buffer_size_change_request)
+	{
+		update_size();
+		buffer_size_change_request = 0;
+	}
+
+	cellbuf_clear(&back_buffer);
+}
+
+int tb_select_input_mode(int mode)
+{
+	if (mode)
+	{
+		if ((mode & (TB_INPUT_ESC | TB_INPUT_ALT)) == 0)
+		{
+			mode |= TB_INPUT_ESC;
+		}
+
+		// technically termbox can handle that, but let's be nice
+		// and show here what mode is actually used
+		if ((mode & (TB_INPUT_ESC | TB_INPUT_ALT)) == (TB_INPUT_ESC | TB_INPUT_ALT))
+		{
+			mode &= ~TB_INPUT_ALT;
+		}
+
+		inputmode = mode;
+
+		if (mode & TB_INPUT_MOUSE)
+		{
+			memstream_puts(&write_buffer, funcs[T_ENTER_MOUSE]);
+			memstream_flush(&write_buffer);
+		}
+		else
+		{
+			memstream_puts(&write_buffer, funcs[T_EXIT_MOUSE]);
+			memstream_flush(&write_buffer);
+		}
+	}
+
+	return inputmode;
+}
+
+int tb_select_output_mode(int mode)
+{
+	if (mode)
+	{
+		outputmode = mode;
+	}
+
+	return outputmode;
+}
+
+void tb_set_clear_attributes(uint32_t fg, uint32_t bg)
+{
+	foreground = fg;
+	background = bg;
+}
+
+static unsigned convertnum(uint32_t num, char* buf)
+{
+	unsigned i, l = 0;
+	int ch;
+
+	do
+	{
+		buf[l++] = '0' + (num % 10);
+		num /= 10;
+	}
+	while (num);
+
+	for (i = 0; i < l / 2; i++)
+	{
+		ch = buf[i];
+		buf[i] = buf[l - 1 - i];
+		buf[l - 1 - i] = ch;
+	}
+
+	return l;
+}
+
+#define WRITE_LITERAL(X) memstream_write(&write_buffer, (X), sizeof(X) -1)
+#define WRITE_INT(X) memstream_write(&write_buffer, buf, convertnum((X), buf))
+
+static void write_cursor(int x, int y)
+{
+	char buf[32];
+	WRITE_LITERAL("\033[");
+	WRITE_INT(y + 1);
+	WRITE_LITERAL(";");
+	WRITE_INT(x + 1);
+	WRITE_LITERAL("H");
+}
+
+static void write_sgr(uint32_t fg, uint32_t bg)
+{
+	char buf[32];
+
+	if (outputmode != TB_OUTPUT_TRUECOLOR && fg == TB_DEFAULT && bg == TB_DEFAULT)
+	{
+		return;
+	}
+
+	switch (outputmode)
+	{
+		case TB_OUTPUT_TRUECOLOR:
+			WRITE_LITERAL("\033[38;2;");
+			WRITE_INT(fg >> 16 & 0xFF);
+			WRITE_LITERAL(";");
+			WRITE_INT(fg >> 8 & 0xFF);
+			WRITE_LITERAL(";");
+			WRITE_INT(fg & 0xFF);
+			WRITE_LITERAL(";48;2;");
+			WRITE_INT(bg >> 16 & 0xFF);
+			WRITE_LITERAL(";");
+			WRITE_INT(bg >> 8 & 0xFF);
+			WRITE_LITERAL(";");
+			WRITE_INT(bg & 0xFF);
+			WRITE_LITERAL("m");
+			break;
+
+		case TB_OUTPUT_256:
+		case TB_OUTPUT_216:
+		case TB_OUTPUT_GRAYSCALE:
+			WRITE_LITERAL("\033[");
+
+			if (fg != TB_DEFAULT)
+			{
+				WRITE_LITERAL("38;5;");
+				WRITE_INT(fg);
+
+				if (bg != TB_DEFAULT)
+				{
+					WRITE_LITERAL(";");
+				}
+			}
+
+			if (bg != TB_DEFAULT)
+			{
+				WRITE_LITERAL("48;5;");
+				WRITE_INT(bg);
+			}
+
+			WRITE_LITERAL("m");
+			break;
+
+		case TB_OUTPUT_NORMAL:
+		default:
+			WRITE_LITERAL("\033[");
+
+			if (fg != TB_DEFAULT)
+			{
+				WRITE_LITERAL("3");
+				WRITE_INT(fg - 1);
+
+				if (bg != TB_DEFAULT)
+				{
+					WRITE_LITERAL(";");
+				}
+			}
+
+			if (bg != TB_DEFAULT)
+			{
+				WRITE_LITERAL("4");
+				WRITE_INT(bg - 1);
+			}
+
+			WRITE_LITERAL("m");
+			break;
+	}
+}
+
+static void cellbuf_init(struct cellbuf* buf, int width, int height)
+{
+	buf->cells = (struct tb_cell*)malloc(sizeof(struct tb_cell) * width * height);
+	assert(buf->cells);
+	buf->width = width;
+	buf->height = height;
+}
+
+static void cellbuf_resize(struct cellbuf* buf, int width, int height)
+{
+	if (buf->width == width && buf->height == height)
+	{
+		return;
+	}
+
+	int oldw = buf->width;
+	int oldh = buf->height;
+	struct tb_cell* oldcells = buf->cells;
+
+	cellbuf_init(buf, width, height);
+	cellbuf_clear(buf);
+
+	int minw = (width < oldw) ? width : oldw;
+	int minh = (height < oldh) ? height : oldh;
+	int i;
+
+	for (i = 0; i < minh; ++i)
+	{
+		struct tb_cell* csrc = oldcells + (i * oldw);
+		struct tb_cell* cdst = buf->cells + (i * width);
+		memcpy(cdst, csrc, sizeof(struct tb_cell) * minw);
+	}
+
+	free(oldcells);
+}
+
+static void cellbuf_clear(struct cellbuf* buf)
+{
+	int i;
+	int ncells = buf->width * buf->height;
+
+	for (i = 0; i < ncells; ++i)
+	{
+		buf->cells[i].ch = ' ';
+		buf->cells[i].fg = foreground;
+		buf->cells[i].bg = background;
+	}
+}
+
+static void cellbuf_free(struct cellbuf* buf)
+{
+	free(buf->cells);
+}
+
+static void get_term_size(int* w, int* h)
+{
+	struct winsize sz;
+	memset(&sz, 0, sizeof(sz));
+
+	ioctl(out_fileno, TIOCGWINSZ, &sz);
+
+	if (w)
+	{
+		*w = sz.ws_col;
+	}
+
+	if (h)
+	{
+		*h = sz.ws_row;
+	}
+}
+
+static void update_term_size(void)
+{
+	struct winsize sz;
+	memset(&sz, 0, sizeof(sz));
+
+	ioctl(out_fileno, TIOCGWINSZ, &sz);
+
+	termw = sz.ws_col;
+	termh = sz.ws_row;
+}
+
+static void send_attr(uint32_t fg, uint32_t bg)
+{
+#define LAST_ATTR_INIT 0xFFFFFFFF
+	static uint32_t lastfg = LAST_ATTR_INIT, lastbg = LAST_ATTR_INIT;
+
+	if (fg != lastfg || bg != lastbg)
+	{
+		memstream_puts(&write_buffer, funcs[T_SGR0]);
+		uint32_t fgcol;
+		uint32_t bgcol;
+
+		switch (outputmode)
+		{
+			case TB_OUTPUT_TRUECOLOR:
+				fgcol = fg;
+				bgcol = bg;
+				break;
+
+			case TB_OUTPUT_256:
+				fgcol = fg & 0xFF;
+				bgcol = bg & 0xFF;
+				break;
+
+			case TB_OUTPUT_216:
+				fgcol = fg & 0xFF;
+
+				if (fgcol > 215)
+				{
+					fgcol = 7;
+				}
+
+				bgcol = bg & 0xFF;
+
+				if (bgcol > 215)
+				{
+					bgcol = 0;
+				}
+
+				fgcol += 0x10;
+				bgcol += 0x10;
+				break;
+
+			case TB_OUTPUT_GRAYSCALE:
+				fgcol = fg & 0xFF;
+
+				if (fgcol > 23)
+				{
+					fgcol = 23;
+				}
+
+				bgcol = bg & 0xFF;
+
+				if (bgcol > 23)
+				{
+					bgcol = 0;
+				}
+
+				fgcol += 0xe8;
+				bgcol += 0xe8;
+				break;
+
+			case TB_OUTPUT_NORMAL:
+			default:
+				fgcol = fg & 0x0F;
+				bgcol = bg & 0x0F;
+		}
+
+		if (fg & TB_BOLD)
+		{
+			memstream_puts(&write_buffer, funcs[T_BOLD]);
+		}
+
+		if (bg & TB_BOLD)
+		{
+			memstream_puts(&write_buffer, funcs[T_BLINK]);
+		}
+
+		if (fg & TB_UNDERLINE)
+		{
+			memstream_puts(&write_buffer, funcs[T_UNDERLINE]);
+		}
+
+		if ((fg & TB_REVERSE) || (bg & TB_REVERSE))
+		{
+			memstream_puts(&write_buffer, funcs[T_REVERSE]);
+		}
+
+		write_sgr(fgcol, bgcol);
+
+		lastfg = fg;
+		lastbg = bg;
+	}
+}
+
+static void send_char(int x, int y, uint32_t c)
+{
+	char buf[7];
+	int bw = utf8_unicode_to_char(buf, c);
+	buf[bw] = '\0';
+
+	if (x - 1 != lastx || y != lasty)
+	{
+		write_cursor(x, y);
+	}
+
+	lastx = x;
+	lasty = y;
+
+	if (!c)
+	{
+		buf[0] = ' '; // replace 0 with whitespace
+	}
+
+	memstream_puts(&write_buffer, buf);
+}
+
+static void send_clear(void)
+{
+	send_attr(foreground, background);
+	memstream_puts(&write_buffer, funcs[T_CLEAR_SCREEN]);
+
+	if (!IS_CURSOR_HIDDEN(cursor_x, cursor_y))
+	{
+		write_cursor(cursor_x, cursor_y);
+	}
+
+	memstream_flush(&write_buffer);
+
+	// we need to invalidate cursor position too and these two vars are
+	// used only for simple cursor positioning optimization, cursor
+	// actually may be in the correct place, but we simply discard
+	// optimization once and it gives us simple solution for the case when
+	// cursor moved
+	lastx = LAST_COORD_INIT;
+	lasty = LAST_COORD_INIT;
+}
+
+static void sigwinch_handler(int xxx)
+{
+	(void) xxx;
+	const int zzz = 1;
+	write(winch_fds[1], &zzz, sizeof(int));
+}
+
+static void update_size(void)
+{
+	update_term_size();
+	cellbuf_resize(&back_buffer, termw, termh);
+	cellbuf_resize(&front_buffer, termw, termh);
+	cellbuf_clear(&front_buffer);
+	send_clear();
+}
+
+static int wait_fill_event(struct tb_event* event, struct timeval* timeout)
+{
+#define ENOUGH_DATA_FOR_INPUT_PARSING 128
+	int result;
+	char buf[ENOUGH_DATA_FOR_INPUT_PARSING];
+	fd_set events;
+	memset(event, 0, sizeof(struct tb_event));
+
+	// try to extract event from input buffer, return on success
+	event->type = TB_EVENT_KEY;
+
+	if (extract_event(event, &inbuf, inputmode))
+	{
+		return event->type;
+	}
+
+	// it looks like input buffer is incomplete, let's try the short path
+	size_t r = fread(buf, 1, ENOUGH_DATA_FOR_INPUT_PARSING, in);
+
+	if (r < ENOUGH_DATA_FOR_INPUT_PARSING && feof(in))
+	{
+		clearerr(in);
+	}
+
+	if (r > 0)
+	{
+		if (ringbuffer_free_space(&inbuf) < r)
+		{
+			return -1;
+		}
+
+		ringbuffer_push(&inbuf, buf, r);
+
+		if (extract_event(event, &inbuf, inputmode))
+		{
+			return event->type;
+		}
+	}
+
+	// no stuff in FILE's internal buffer, block in select
+	while (1)
+	{
+		FD_ZERO(&events);
+		FD_SET(in_fileno, &events);
+		FD_SET(winch_fds[0], &events);
+		int maxfd = (winch_fds[0] > in_fileno) ? winch_fds[0] : in_fileno;
+		result = select(maxfd + 1, &events, 0, 0, timeout);
+
+		if (!result)
+		{
+			return 0;
+		}
+
+		if (FD_ISSET(in_fileno, &events))
+		{
+			event->type = TB_EVENT_KEY;
+			size_t r = fread(buf, 1, ENOUGH_DATA_FOR_INPUT_PARSING, in);
+
+			if (r < ENOUGH_DATA_FOR_INPUT_PARSING && feof(in))
+			{
+				clearerr(in);
+			}
+
+			if (r == 0)
+			{
+				continue;
+			}
+
+			// if there is no free space in input buffer, return error
+			if (ringbuffer_free_space(&inbuf) < r)
+			{
+				return -1;
+			}
+
+			// fill buffer
+			ringbuffer_push(&inbuf, buf, r);
+
+			if (extract_event(event, &inbuf, inputmode))
+			{
+				return event->type;
+			}
+		}
+
+		if (FD_ISSET(winch_fds[0], &events))
+		{
+			event->type = TB_EVENT_RESIZE;
+			int zzz = 0;
+			read(winch_fds[0], &zzz, sizeof(int));
+			buffer_size_change_request = 1;
+			get_term_size(&event->w, &event->h);
+			return TB_EVENT_RESIZE;
+		}
+	}
+}
diff --git a/dep/termbox_next/src/termbox.h b/dep/termbox_next/src/termbox.h
new file mode 100644
index 0000000..c3cbcb6
--- /dev/null
+++ b/dep/termbox_next/src/termbox.h
@@ -0,0 +1,307 @@
+#ifndef H_TERMBOX
+#define H_TERMBOX
+#include <stdint.h>
+
+// shared objects
+#if __GNUC__ >= 4
+	#define SO_IMPORT __attribute__((visibility("default")))
+#else
+	#define SO_IMPORT
+#endif
+
+// c++
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Key constants. See also struct tb_event's key field.
+// These are a safe subset of terminfo keys, which exist on all popular
+// terminals. Termbox uses only them to stay truly portable.
+#define TB_KEY_F1               (0xFFFF-0)
+#define TB_KEY_F2               (0xFFFF-1)
+#define TB_KEY_F3               (0xFFFF-2)
+#define TB_KEY_F4               (0xFFFF-3)
+#define TB_KEY_F5               (0xFFFF-4)
+#define TB_KEY_F6               (0xFFFF-5)
+#define TB_KEY_F7               (0xFFFF-6)
+#define TB_KEY_F8               (0xFFFF-7)
+#define TB_KEY_F9               (0xFFFF-8)
+#define TB_KEY_F10              (0xFFFF-9)
+#define TB_KEY_F11              (0xFFFF-10)
+#define TB_KEY_F12              (0xFFFF-11)
+#define TB_KEY_INSERT           (0xFFFF-12)
+#define TB_KEY_DELETE           (0xFFFF-13)
+#define TB_KEY_HOME             (0xFFFF-14)
+#define TB_KEY_END              (0xFFFF-15)
+#define TB_KEY_PGUP             (0xFFFF-16)
+#define TB_KEY_PGDN             (0xFFFF-17)
+#define TB_KEY_ARROW_UP         (0xFFFF-18)
+#define TB_KEY_ARROW_DOWN       (0xFFFF-19)
+#define TB_KEY_ARROW_LEFT       (0xFFFF-20)
+#define TB_KEY_ARROW_RIGHT      (0xFFFF-21)
+#define TB_KEY_MOUSE_LEFT       (0xFFFF-22)
+#define TB_KEY_MOUSE_RIGHT      (0xFFFF-23)
+#define TB_KEY_MOUSE_MIDDLE     (0xFFFF-24)
+#define TB_KEY_MOUSE_RELEASE    (0xFFFF-25)
+#define TB_KEY_MOUSE_WHEEL_UP   (0xFFFF-26)
+#define TB_KEY_MOUSE_WHEEL_DOWN (0xFFFF-27)
+
+// These are all ASCII code points below SPACE character and a BACKSPACE key.
+#define TB_KEY_CTRL_TILDE       0x00
+#define TB_KEY_CTRL_2           0x00 // clash with 'CTRL_TILDE'
+#define TB_KEY_CTRL_A           0x01
+#define TB_KEY_CTRL_B           0x02
+#define TB_KEY_CTRL_C           0x03
+#define TB_KEY_CTRL_D           0x04
+#define TB_KEY_CTRL_E           0x05
+#define TB_KEY_CTRL_F           0x06
+#define TB_KEY_CTRL_G           0x07
+#define TB_KEY_BACKSPACE        0x08
+#define TB_KEY_CTRL_H           0x08 // clash with 'CTRL_BACKSPACE'
+#define TB_KEY_TAB              0x09
+#define TB_KEY_CTRL_I           0x09 // clash with 'TAB'
+#define TB_KEY_CTRL_J           0x0A
+#define TB_KEY_CTRL_K           0x0B
+#define TB_KEY_CTRL_L           0x0C
+#define TB_KEY_ENTER            0x0D
+#define TB_KEY_CTRL_M           0x0D // clash with 'ENTER'
+#define TB_KEY_CTRL_N           0x0E
+#define TB_KEY_CTRL_O           0x0F
+#define TB_KEY_CTRL_P           0x10
+#define TB_KEY_CTRL_Q           0x11
+#define TB_KEY_CTRL_R           0x12
+#define TB_KEY_CTRL_S           0x13
+#define TB_KEY_CTRL_T           0x14
+#define TB_KEY_CTRL_U           0x15
+#define TB_KEY_CTRL_V           0x16
+#define TB_KEY_CTRL_W           0x17
+#define TB_KEY_CTRL_X           0x18
+#define TB_KEY_CTRL_Y           0x19
+#define TB_KEY_CTRL_Z           0x1A
+#define TB_KEY_ESC              0x1B
+#define TB_KEY_CTRL_LSQ_BRACKET 0x1B // clash with 'ESC'
+#define TB_KEY_CTRL_3           0x1B // clash with 'ESC'
+#define TB_KEY_CTRL_4           0x1C
+#define TB_KEY_CTRL_BACKSLASH   0x1C // clash with 'CTRL_4'
+#define TB_KEY_CTRL_5           0x1D
+#define TB_KEY_CTRL_RSQ_BRACKET 0x1D // clash with 'CTRL_5'
+#define TB_KEY_CTRL_6           0x1E
+#define TB_KEY_CTRL_7           0x1F
+#define TB_KEY_CTRL_SLASH       0x1F // clash with 'CTRL_7'
+#define TB_KEY_CTRL_UNDERSCORE  0x1F // clash with 'CTRL_7'
+#define TB_KEY_SPACE            0x20
+#define TB_KEY_BACKSPACE2       0x7F
+#define TB_KEY_CTRL_8           0x7F // clash with 'BACKSPACE2'
+
+// These are non-existing ones.
+// #define TB_KEY_CTRL_1 clash with '1'
+// #define TB_KEY_CTRL_9 clash with '9'
+// #define TB_KEY_CTRL_0 clash with '0'
+
+// Alt modifier constant, see tb_event.mod field and tb_select_input_mode function.
+// Mouse-motion modifier
+#define TB_MOD_ALT    0x01
+#define TB_MOD_MOTION 0x02
+
+// Colors (see struct tb_cell's fg and bg fields).
+#define TB_DEFAULT 0x00
+#define TB_BLACK   0x01
+#define TB_RED     0x02
+#define TB_GREEN   0x03
+#define TB_YELLOW  0x04
+#define TB_BLUE    0x05
+#define TB_MAGENTA 0x06
+#define TB_CYAN    0x07
+#define TB_WHITE   0x08
+
+//  Attributes, it is possible to use multiple attributes by combining them
+//  using bitwise OR ('|'). Although, colors cannot be combined. But you can
+//  combine attributes and a single color. See also struct tb_cell's fg and bg
+//  fields.
+#define TB_BOLD      0x01000000
+#define TB_UNDERLINE 0x02000000
+#define TB_REVERSE   0x04000000
+
+// A cell, single conceptual entity on the terminal screen. The terminal screen
+// is basically a 2d array of cells. It has the following fields:
+// - 'ch' is a unicode character
+// - 'fg' foreground color and attributes
+// - 'bg' background color and attributes
+struct tb_cell
+{
+	uint32_t ch;
+	uint32_t fg;
+	uint32_t bg;
+};
+
+#define TB_EVENT_KEY    1
+#define TB_EVENT_RESIZE 2
+#define TB_EVENT_MOUSE  3
+
+// An event, single interaction from the user. The 'mod' and 'ch' fields are
+// valid if 'type' is TB_EVENT_KEY. The 'w' and 'h' fields are valid if 'type'
+// is TB_EVENT_RESIZE. The 'x' and 'y' fields are valid if 'type' is
+// TB_EVENT_MOUSE. The 'key' field is valid if 'type' is either TB_EVENT_KEY
+// or TB_EVENT_MOUSE. The fields 'key' and 'ch' are mutually exclusive; only
+// one of them can be non-zero at a time.
+struct tb_event
+{
+	uint8_t type;
+	uint8_t mod; // modifiers to either 'key' or 'ch' below
+	uint16_t key; // one of the TB_KEY_* constants
+	uint32_t ch; // unicode character
+	int32_t w;
+	int32_t h;
+	int32_t x;
+	int32_t y;
+};
+
+//  Error codes returned by tb_init(). All of them are self-explanatory, except
+//  the pipe trap error. Termbox uses unix pipes in order to deliver a message
+//  from a signal handler (SIGWINCH) to the main event reading loop. Honestly in
+//  most cases you should just check the returned code as < 0.
+#define TB_EUNSUPPORTED_TERMINAL -1
+#define TB_EFAILED_TO_OPEN_TTY   -2
+#define TB_EPIPE_TRAP_ERROR      -3
+
+// Initializes the termbox library. This function should be called before any
+// other functions. Function tb_init is same as tb_init_file("/dev/tty"). After successful initialization, the library must be
+// finalized using the tb_shutdown() function.
+SO_IMPORT int tb_init(void);
+SO_IMPORT int tb_init_file(const char* name);
+SO_IMPORT void tb_shutdown(void);
+
+// Returns the size of the internal back buffer (which is the same as
+// terminal's window size in characters). The internal buffer can be resized
+// after tb_clear() or tb_present() function calls. Both dimensions have an
+// unspecified negative value when called before tb_init() or after
+// tb_shutdown().
+SO_IMPORT int tb_width(void);
+SO_IMPORT int tb_height(void);
+
+// Clears the internal back buffer using TB_DEFAULT color or the
+// color/attributes set by tb_set_clear_attributes() function.
+SO_IMPORT void tb_clear(void);
+SO_IMPORT void tb_set_clear_attributes(uint32_t fg, uint32_t bg);
+
+// Synchronizes the internal back buffer with the terminal.
+SO_IMPORT void tb_present(void);
+
+#define TB_HIDE_CURSOR -1
+
+// Sets the position of the cursor. Upper-left character is (0, 0). If you pass
+// TB_HIDE_CURSOR as both coordinates, then the cursor will be hidden. Cursor
+// is hidden by default.
+SO_IMPORT void tb_set_cursor(int cx, int cy);
+
+// Changes cell's parameters in the internal back buffer at the specified
+// position.
+SO_IMPORT void tb_put_cell(int x, int y, const struct tb_cell* cell);
+SO_IMPORT void tb_change_cell(int x, int y, uint32_t ch, uint32_t fg,
+	uint32_t bg);
+
+// Copies the buffer from 'cells' at the specified position, assuming the
+// buffer is a two-dimensional array of size ('w' x 'h'), represented as a
+// one-dimensional buffer containing lines of cells starting from the top.
+// (DEPRECATED: use tb_cell_buffer() instead and copy memory on your own)
+SO_IMPORT void tb_blit(int x, int y, int w, int h, const struct tb_cell* cells);
+
+// Returns a pointer to internal cell back buffer. You can get its dimensions
+// using tb_width() and tb_height() functions. The pointer stays valid as long
+// as no tb_clear() and tb_present() calls are made. The buffer is
+// one-dimensional buffer containing lines of cells starting from the top.
+SO_IMPORT struct tb_cell* tb_cell_buffer(void);
+
+#define TB_INPUT_CURRENT 0 // 000
+#define TB_INPUT_ESC     1 // 001
+#define TB_INPUT_ALT     2 // 010
+#define TB_INPUT_MOUSE   4 // 100
+
+//  Sets the termbox input mode. Termbox has two input modes:
+//  1. Esc input mode.
+//    When ESC sequence is in the buffer and it doesn't match any known
+//    ESC sequence => ESC means TB_KEY_ESC.
+//  2. Alt input mode.
+//    When ESC sequence is in the buffer and it doesn't match any known
+//    sequence => ESC enables TB_MOD_ALT modifier for the next keyboard event.
+//
+//  You can also apply TB_INPUT_MOUSE via bitwise OR operation to either of the
+//  modes (e.g. TB_INPUT_ESC | TB_INPUT_MOUSE). If none of the main two modes
+//  were set, but the mouse mode was, TB_INPUT_ESC mode is used. If for some
+//  reason you've decided to use (TB_INPUT_ESC | TB_INPUT_ALT) combination, it
+//  will behave as if only TB_INPUT_ESC was selected.
+//
+//  If 'mode' is TB_INPUT_CURRENT, it returns the current input mode.
+//
+//  Default termbox input mode is TB_INPUT_ESC.
+SO_IMPORT int tb_select_input_mode(int mode);
+
+#define TB_OUTPUT_CURRENT   0
+#define TB_OUTPUT_NORMAL    1
+#define TB_OUTPUT_256       2
+#define TB_OUTPUT_216       3
+#define TB_OUTPUT_GRAYSCALE 4
+#define TB_OUTPUT_TRUECOLOR 5
+
+// Sets the termbox output mode. Termbox has three output options:
+// 1. TB_OUTPUT_NORMAL     => [1..8]
+//   This mode provides 8 different colors:
+//   black, red, green, yellow, blue, magenta, cyan, white
+//   Shortcut: TB_BLACK, TB_RED, ...
+//   Attributes: TB_BOLD, TB_UNDERLINE, TB_REVERSE
+//
+//   Example usage:
+//       tb_change_cell(x, y, '@', TB_BLACK | TB_BOLD, TB_RED);
+//
+// 2. TB_OUTPUT_256        => [0..256]
+//   In this mode you can leverage the 256 terminal mode:
+//   0x00 - 0x07: the 8 colors as in TB_OUTPUT_NORMAL
+//   0x08 - 0x0f: TB_* | TB_BOLD
+//   0x10 - 0xe7: 216 different colors
+//   0xe8 - 0xff: 24 different shades of grey
+//
+//   Example usage:
+//       tb_change_cell(x, y, '@', 184, 240);
+//       tb_change_cell(x, y, '@', 0xb8, 0xf0);
+//
+// 3. TB_OUTPUT_216        => [0..216]
+//   This mode supports the 3rd range of the 256 mode only.
+//   But you don't need to provide an offset.
+//
+// 4. TB_OUTPUT_GRAYSCALE  => [0..23]
+//   This mode supports the 4th range of the 256 mode only.
+//   But you dont need to provide an offset.
+//
+// 5. TB_OUTPUT_TRUECOLOR  => [0x000000..0xFFFFFF]
+//   This mode supports 24-bit true color. Format is 0xRRGGBB.
+//
+// Execute build/src/demo/output to see its impact on your terminal.
+//
+// If 'mode' is TB_OUTPUT_CURRENT, it returns the current output mode.
+//
+// Default termbox output mode is TB_OUTPUT_NORMAL.
+SO_IMPORT int tb_select_output_mode(int mode);
+
+// Wait for an event up to 'timeout' milliseconds and fill the 'event'
+// structure with it, when the event is available. Returns the type of the
+// event (one of TB_EVENT_* constants) or -1 if there was an error or 0 in case
+// there were no event during 'timeout' period.
+SO_IMPORT int tb_peek_event(struct tb_event* event, int timeout);
+
+// Wait for an event forever and fill the 'event' structure with it, when the
+// event is available. Returns the type of the event (one of TB_EVENT_
+// constants) or -1 if there was an error.
+SO_IMPORT int tb_poll_event(struct tb_event* event);
+
+// Utility utf8 functions.
+#define TB_EOF -1
+SO_IMPORT int utf8_char_length(char c);
+SO_IMPORT int utf8_char_to_unicode(uint32_t* out, const char* c);
+SO_IMPORT int utf8_unicode_to_char(char* out, uint32_t c);
+
+// c++
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/dep/termbox_next/src/utf8.c b/dep/termbox_next/src/utf8.c
new file mode 100644
index 0000000..43efd7f
--- /dev/null
+++ b/dep/termbox_next/src/utf8.c
@@ -0,0 +1,106 @@
+#include "termbox.h"
+
+static const unsigned char utf8_length[256] =
+{
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 1, 1
+};
+
+static const unsigned char utf8_mask[6] =
+{
+	0x7F,
+	0x1F,
+	0x0F,
+	0x07,
+	0x03,
+	0x01
+};
+
+int utf8_char_length(char c)
+{
+	return utf8_length[(unsigned char)c];
+}
+
+int utf8_char_to_unicode(uint32_t* out, const char* c)
+{
+	if (*c == 0)
+	{
+		return TB_EOF;
+	}
+
+	int i;
+	unsigned char len = utf8_char_length(*c);
+	unsigned char mask = utf8_mask[len - 1];
+	uint32_t result = c[0] & mask;
+
+	for (i = 1; i < len; ++i)
+	{
+		result <<= 6;
+		result |= c[i] & 0x3f;
+	}
+
+	*out = result;
+	return (int)len;
+}
+
+int utf8_unicode_to_char(char* out, uint32_t c)
+{
+	int len = 0;
+	int first;
+	int i;
+
+	if (c < 0x80)
+	{
+		first = 0;
+		len = 1;
+	}
+	else if (c < 0x800)
+	{
+		first = 0xc0;
+		len = 2;
+	}
+	else if (c < 0x10000)
+	{
+		first = 0xe0;
+		len = 3;
+	}
+	else if (c < 0x200000)
+	{
+		first = 0xf0;
+		len = 4;
+	}
+	else if (c < 0x4000000)
+	{
+		first = 0xf8;
+		len = 5;
+	}
+	else
+	{
+		first = 0xfc;
+		len = 6;
+	}
+
+	for (i = len - 1; i > 0; --i)
+	{
+		out[i] = (c & 0x3f) | 0x80;
+		c >>= 6;
+	}
+
+	out[0] = c | first;
+
+	return len;
+}
diff --git a/dep/termbox_next/tools/astylerc b/dep/termbox_next/tools/astylerc
new file mode 100644
index 0000000..a296bc3
--- /dev/null
+++ b/dep/termbox_next/tools/astylerc
@@ -0,0 +1,27 @@
+--style=break
+--indent=force-tab=4
+--indent-classes
+--indent-switches
+--indent-namespaces
+--indent-after-parens
+--indent-continuation=1
+--indent-preproc-block
+--indent-preproc-define
+--indent-preproc-cond
+--indent-col1-comments
+--min-conditional-indent=0
+--max-continuation-indent=40
+--break-blocks
+--pad-oper
+--pad-comma
+--pad-header
+--unpad-paren
+--align-pointer=type
+--align-reference=type
+--break-one-line-headers
+--add-braces
+--attach-return-type
+--attach-return-type-decl
+--remove-comment-prefix
+--max-code-length=80
+--mode=c
diff --git a/dep/termbox_next/tools/collect_terminfo.py b/dep/termbox_next/tools/collect_terminfo.py
new file mode 100755
index 0000000..596c3c4
--- /dev/null
+++ b/dep/termbox_next/tools/collect_terminfo.py
@@ -0,0 +1,108 @@
+#!/usr/bin/env python
+
+import sys, os, subprocess
+
+def escaped(s):
+	return s.replace("\033", "\\033")
+
+def tput(term, name):
+	try:
+		return subprocess.check_output(['tput', '-T%s' % term, name]).decode()
+	except subprocess.CalledProcessError as e:
+		return e.output.decode()
+
+
+def w(s):
+	if s == None:
+		return
+	sys.stdout.write(s)
+
+terminals = {
+	'xterm' : 'xterm',
+	'rxvt-256color' : 'rxvt_256color',
+	'rxvt-unicode' : 'rxvt_unicode',
+	'linux' : 'linux',
+	'Eterm' : 'eterm',
+	'screen' : 'screen'
+}
+
+keys = [
+	"F1",		"kf1",
+	"F2",		"kf2",
+	"F3",		"kf3",
+	"F4",		"kf4",
+	"F5",		"kf5",
+	"F6",		"kf6",
+	"F7",		"kf7",
+	"F8",		"kf8",
+	"F9",		"kf9",
+	"F10",		"kf10",
+	"F11",		"kf11",
+	"F12",		"kf12",
+	"INSERT",	"kich1",
+	"DELETE",	"kdch1",
+	"HOME",		"khome",
+	"END",		"kend",
+	"PGUP",		"kpp",
+	"PGDN",		"knp",
+	"KEY_UP",	"kcuu1",
+	"KEY_DOWN",	"kcud1",
+	"KEY_LEFT",	"kcub1",
+	"KEY_RIGHT",	"kcuf1"
+]
+
+funcs = [
+	"T_ENTER_CA",		"smcup",
+	"T_EXIT_CA",		"rmcup",
+	"T_SHOW_CURSOR",	"cnorm",
+	"T_HIDE_CURSOR",	"civis",
+	"T_CLEAR_SCREEN",	"clear",
+	"T_SGR0",		"sgr0",
+	"T_UNDERLINE",		"smul",
+	"T_BOLD",		"bold",
+	"T_BLINK",		"blink",
+	"T_REVERSE",            "rev",
+	"T_ENTER_KEYPAD",	"smkx",
+	"T_EXIT_KEYPAD",	"rmkx"
+]
+
+def iter_pairs(iterable):
+	iterable = iter(iterable)
+	while True:
+		yield (next(iterable), next(iterable))
+
+def do_term(term, nick):
+	w("// %s\n" % term)
+	w("static const char *%s_keys[] = {\n\t" % nick)
+	for k, v in iter_pairs(keys):
+		w('"')
+		w(escaped(tput(term, v)))
+		w('",')
+	w(" 0\n};\n")
+	w("static const char *%s_funcs[] = {\n\t" % nick)
+	for k,v in iter_pairs(funcs):
+		w('"')
+		if v == "sgr":
+			w("\\033[3%d;4%dm")
+		elif v == "cup":
+			w("\\033[%d;%dH")
+		else:
+			w(escaped(tput(term, v)))
+		w('", ')
+	w("\n};\n\n")
+
+def do_terms(d):
+	w("static struct term {\n")
+	w("\tconst char *name;\n")
+	w("\tconst char **keys;\n")
+	w("\tconst char **funcs;\n")
+	w("} terms[] = {\n")
+	for k, v in d.items():
+		w('\t{"%s", %s_keys, %s_funcs},\n' % (k, v, v))
+	w("\t{0, 0, 0},\n")
+	w("};\n")
+
+for k,v in terminals.items():
+	do_term(k, v)
+
+do_terms(terminals)