5788

9 files changed, 1 insertions, 1272 deletions

diff --git a/clean b/clean
index 82c1142b..ef0eb481 100755
--- a/clean
+++ b/clean
@@ -5,7 +5,7 @@ set -v
 rm -rf subx.cc subx_bin* *_list
 rm -rf .until
 test $# -gt 0 && exit 0  # convenience: 'clean top-level' to leave subsidiary tools alone
-rm -rf enumerate/enumerate tangle/tangle tangle/*_list */*.dSYM termbox/*.[oa]
+rm -rf enumerate/enumerate tangle/tangle tangle/*_list */*.dSYM
 rm -rf browse_trace/browse_trace_bin browse_trace/*_list
 rm -rf tmp mu-linux.iso outfs initrd.fat mu-soso.iso
 ( cd kernel.soso  &&  make clean; )
diff --git a/termbox/COPYING b/termbox/COPYING
deleted file mode 100644
index e9bb4eac..00000000
--- a/termbox/COPYING
+++ /dev/null
@@ -1,19 +0,0 @@
-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/termbox/Readme b/termbox/Readme
deleted file mode 100644
index d97cae4e..00000000
--- a/termbox/Readme
+++ /dev/null
@@ -1,2 +0,0 @@
-Fork of https://github.com/nsf/termbox as of 2015-06-05
-git hash 252bef01264a2aeef22ebe5bae0b5893a58947f3
diff --git a/termbox/bytebuffer.inl b/termbox/bytebuffer.inl
deleted file mode 100644
index aae8f073..00000000
--- a/termbox/bytebuffer.inl
+++ /dev/null
@@ -1,79 +0,0 @@
-struct bytebuffer {
-  char *buf;
-  int len;
-  int cap;
-};
-
-static void bytebuffer_reserve(struct bytebuffer *b, int cap) {
-  if (b->cap >= cap) {
-    return;
-  }
-
-  // prefer doubling capacity
-  if (b->cap * 2 >= cap) {
-    cap = b->cap * 2;
-  }
-
-  char *newbuf = malloc(cap);
-  if (b->len > 0) {
-    // copy what was there, b->len > 0 assumes b->buf != null
-    memcpy(newbuf, b->buf, b->len);
-  }
-  if (b->buf) {
-    // in case there was an allocated buffer, free it
-    free(b->buf);
-  }
-  b->buf = newbuf;
-  b->cap = cap;
-}
-
-static void bytebuffer_init(struct bytebuffer *b, int cap) {
-  b->cap = 0;
-  b->len = 0;
-  b->buf = 0;
-
-  if (cap > 0) {
-    b->cap = cap;
-    b->buf = malloc(cap); // just assume malloc works always
-  }
-}
-
-static void bytebuffer_free(struct bytebuffer *b) {
-  if (b->buf)
-    free(b->buf);
-}
-
-static void bytebuffer_clear(struct bytebuffer *b) {
-  b->len = 0;
-}
-
-static void bytebuffer_append(struct bytebuffer *b, const char *data, int len) {
-  bytebuffer_reserve(b, b->len + len);
-  memcpy(b->buf + b->len, data, len);
-  b->len += len;
-}
-
-static void bytebuffer_puts(struct bytebuffer *b, const char *str) {
-  bytebuffer_append(b, str, strlen(str));
-}
-
-static void bytebuffer_resize(struct bytebuffer *b, int len) {
-  bytebuffer_reserve(b, len);
-  b->len = len;
-}
-
-static void bytebuffer_flush(struct bytebuffer *b, int fd) {
-  int yyy = write(fd, b->buf, b->len);
-  (void) yyy;
-  bytebuffer_clear(b);
-}
-
-static void bytebuffer_truncate(struct bytebuffer *b, int n) {
-  if (n <= 0)
-    return;
-  if (n > b->len)
-    n = b->len;
-  const int nmove = b->len - n;
-  memmove(b->buf, b->buf+n, nmove);
-  b->len -= n;
-}
diff --git a/termbox/input.inl b/termbox/input.inl
deleted file mode 100644
index 83b4bb8c..00000000
--- a/termbox/input.inl
+++ /dev/null
@@ -1,185 +0,0 @@
-// if s1 starts with s2 returns true, else false
-// len is the length of s1
-// s2 should be null-terminated
-static bool starts_with(const char *s1, int len, const char *s2)
-{
-  int n = 0;
-  while (*s2 && n < len) {
-    if (*s1++ != *s2++)
-      return false;
-    n++;
-  }
-  return *s2 == 0;
-}
-
-#define FOO(...) { \
-  FILE* f = fopen("log", "a+"); \
-  fprintf(f, __VA_ARGS__); \
-  fclose(f); \
-}
-
-// 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)
-{
-  static int parse_attempts = 0;
-  static const int MAX_PARSE_ATTEMPTS = 2;
-
-//?   int x = 0;
-//?   FOO("-- %d\n", len);
-//?   for (x = 0; x < len; ++x) {
-//?     FOO("%d\n", (unsigned char)buf[x]);
-//?   }
-  if (len >= 6 && starts_with(buf, len, "\033[M")) {
-
-    switch (buf[3] & 3) {
-    case 0:
-      if (buf[3] == 0x60)
-        event->key = TB_KEY_MOUSE_WHEEL_UP;
-      else
-        event->key = TB_KEY_MOUSE_LEFT;
-      break;
-    case 1:
-      if (buf[3] == 0x61)
-        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:
-      parse_attempts = 0;
-      return -6;
-    }
-    event->type = TB_EVENT_MOUSE; // TB_EVENT_KEY by default
-
-    // the coord is 1,1 for upper left
-    event->x = (uint8_t)buf[4] - 1 - 32;
-    event->y = (uint8_t)buf[5] - 1 - 32;
-
-    parse_attempts = 0;
-    return 6;
-  }
-
-  // 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, len, keys[i])) {
-      event->ch = 0;
-      event->key = 0xFFFF-i;
-      parse_attempts = 0;
-      return strlen(keys[i]);
-    }
-  }
-
-  if (starts_with(buf, len, "\033[200~")) {
-    event->ch = 0;
-    event->key = TB_KEY_START_PASTE;
-    parse_attempts = 0;
-    return strlen("\033[200~");
-  }
-  if (starts_with(buf, len, "\033[201~")) {
-    event->ch = 0;
-    event->key = TB_KEY_END_PASTE;
-    parse_attempts = 0;
-    return strlen("\033[201~");
-  }
-  if (starts_with(buf, len, "\033[1;5A")) {
-    event->ch = 0;
-    event->key = TB_KEY_CTRL_ARROW_UP;
-    parse_attempts = 0;
-    return strlen("\033[1;5A");
-  }
-  if (starts_with(buf, len, "\033[1;5B")) {
-    event->ch = 0;
-    event->key = TB_KEY_CTRL_ARROW_DOWN;
-    parse_attempts = 0;
-    return strlen("\033[1;5B");
-  }
-  if (starts_with(buf, len, "\033[1;5C")) {
-    event->ch = 0;
-    event->key = TB_KEY_CTRL_ARROW_RIGHT;
-    parse_attempts = 0;
-    return strlen("\033[1;5C");
-  }
-  if (starts_with(buf, len, "\033[1;5D")) {
-    event->ch = 0;
-    event->key = TB_KEY_CTRL_ARROW_LEFT;
-    parse_attempts = 0;
-    return strlen("\033[1;5D");
-  }
-  if (starts_with(buf, len, "\033[Z")) {
-    event->ch = 0;
-    event->key = TB_KEY_SHIFT_TAB;
-    parse_attempts = 0;
-    return strlen("\033[Z");
-  }
-
-  // no escape sequence recognized? wait a bit in case our buffer is incomplete
-  ++parse_attempts;
-  if (parse_attempts < MAX_PARSE_ATTEMPTS) return 0;
-  // still nothing? give up and consume just the esc
-  event->ch = 0;
-  event->key = TB_KEY_ESC;
-  parse_attempts = 0;
-  return 1;
-}
-
-static bool extract_event(struct tb_event *event, struct bytebuffer *inbuf)
-{
-  const char *buf = inbuf->buf;
-  const int len = inbuf->len;
-  if (len == 0)
-    return false;
-
-//?   int x = 0;
-//?   FOO("== %d\n", len);
-//?   for (x = 0; x < len; ++x) {
-//?     FOO("%x\n", (unsigned char)buf[x]);
-//?   }
-  if (buf[0] == '\033') {
-    int n = parse_escape_seq(event, buf, len);
-    if (n == 0) return false;
-//?     FOO("parsed: %u %u %u %u\n", n, (unsigned int)event->type, (unsigned int)event->key, event->ch);
-    bool success = true;
-    if (n < 0) {
-      success = false;
-      n = -n;
-    }
-    bytebuffer_truncate(inbuf, n);
-    return success;
-  }
-
-  // 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];
-    bytebuffer_truncate(inbuf, 1);
-    return true;
-  }
-
-  // feh... we got utf8 here
-
-  // check if there is all bytes
-  if (len >= tb_utf8_char_length(buf[0])) {
-    /* everything ok, fill event, pop buffer, return success */
-    tb_utf8_char_to_unicode(&event->ch, buf);
-    event->key = 0;
-    bytebuffer_truncate(inbuf, tb_utf8_char_length(buf[0]));
-    return true;
-  }
-
-  // event isn't recognized, perhaps there is not enough bytes in utf8
-  // sequence
-  return false;
-}
diff --git a/termbox/output.inl b/termbox/output.inl
deleted file mode 100644
index d87049ef..00000000
--- a/termbox/output.inl
+++ /dev/null
@@ -1,320 +0,0 @@
-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_ENTER_BRACKETED_PASTE,
-  T_EXIT_BRACKETED_PASTE,
-  T_FUNCS_NUM,
-};
-
-#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", 0
-};
-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>", "\033[?1000h", "\033[?1000l", "\033[?2004h", "\033[?2004l",
-};
-
-// 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", 0
-};
-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", 0
-};
-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>", "\033[?1000h", "\033[?1000l", "\033[?2004h", "\033[?2004l",
-};
-
-// 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", 0
-};
-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>", "\033[?1000h", "\033[?1000l", "\033[?2004h", "\033[?2004l",
-};
-
-// 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", 0
-};
-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", 0
-};
-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>", "\033[?1000h", "\033[?1000l", "\033[?2004h", "\033[?2004l",
-};
-
-static struct term {
-  const char *name;
-  const char **keys;
-  const char **funcs;
-} 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 bool init_from_terminfo = false;
-static const char **keys;
-static 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 guarantee for older compilers
-  assert(sizeof(tmp) > sizeof(path)+sizeof("/x/")+sizeof(term)+1);
-  snprintf(tmp, sizeof(tmp), "%s/%c/%s", path, term[0], term);
-  char *data = read_file(tmp);
-  if (data) {
-    return data;
-  }
-
-  // fallback to darwin specific dirs structure
-  // snprintf guarantee above still applies
-  snprintf(tmp, sizeof(tmp), "%s/%x/%s", path, term[0], term);
-  return read_file(tmp);
-}
-
-void string_copy(char* dest, const char* src, int dest_capacity) {
-  strncpy(dest, src, dest_capacity);
-  dest[dest_capacity-1] = '\0';
-}
-
-void string_append(char* dest, const char* src, int dest_capacity) {
-  strncat(dest, src, dest_capacity);
-  dest[dest_capacity-1] = '\0';
-}
-
-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 guarantee for older compilers
-    assert(sizeof(tmp) > sizeof(home)+sizeof("/.terminfo")+1);
-    string_copy(tmp, home, sizeof(tmp));
-    string_append(tmp, "/.terminfo", sizeof(tmp));
-    char *data = terminfo_try_path(tmp, term);
-    if (data)
-      return data;
-  }
-
-  // next, TERMINFO_DIRS
-  const char *dirs = getenv("TERMINFO_DIRS");
-  if (dirs) {
-    // snprintf guarantee for older compilers
-    assert(sizeof(tmp) > sizeof(dirs));
-    strncpy(tmp, dirs, sizeof(tmp));
-    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_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);
-  string_copy(dst, src, len+1);
-  return dst;
-}
-
-static const int16_t ti_funcs[] = {
-  28, 40, 16, 13, 5, 39, 36, 27, 26, 34, 89, 88,
-};
-
-static const int16_t ti_keys[] = {
-  66, 68 /* apparently not a typo; 67 is F10 for whatever reason */, 69,
-  70, 71, 72, 73, 74, 75, 67, 216, 217, 77, 59, 76, 164, 82, 81, 87, 61,
-  79, 83,
-};
-
-static int init_term(void) {
-  int i;
-  char *data = load_terminfo();
-  if (!data) {
-    init_from_terminfo = false;
-    return init_term_builtin();
-  }
-
-  int16_t *header = (int16_t*)data;
-  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] + 2 * 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[TB_KEYS_NUM] = 0;
-
-  funcs = malloc(sizeof(const char*) * T_FUNCS_NUM);
-  // the last four entries are reserved for mouse, bracketed paste. because the table offset is
-  // not there, the two entries have to fill in manually
-  for (i = 0; i < T_FUNCS_NUM-4; i++) {
-    funcs[i] = terminfo_copy_string(data,
-      str_offset + 2 * ti_funcs[i], table_offset);
-  }
-
-  funcs[T_FUNCS_NUM-4] = "\033[?1000h";
-  funcs[T_FUNCS_NUM-3] = "\033[?1000l";
-  funcs[T_FUNCS_NUM-2] = "\033[?2004h";
-  funcs[T_FUNCS_NUM-1] = "\033[?2004l";
-
-  init_from_terminfo = true;
-  free(data);
-  return 0;
-}
-
-static void shutdown_term(void) {
-  if (init_from_terminfo) {
-    int i;
-    for (i = 0; i < TB_KEYS_NUM; i++) {
-      free((void*)keys[i]);
-    }
-    // the last four entries are reserved for mouse, bracketed paste. 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-4; i++) {
-      free((void*)funcs[i]);
-    }
-    free(keys);
-    free(funcs);
-  }
-}
diff --git a/termbox/termbox.c b/termbox/termbox.c
deleted file mode 100644
index c97f03d5..00000000
--- a/termbox/termbox.c
+++ /dev/null
@@ -1,397 +0,0 @@
-#include <assert.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-#include <fcntl.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdbool.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/stat.h>
-#include <termios.h>
-#include <unistd.h>
-#include <wchar.h>
-/* hack: we can't define _XOPEN_SOURCE because that causes OpenBSD to not
- * include SIGWINCH. But then this prototype is not included on Linux,
- * triggering a warning. */
-extern int wcwidth (wchar_t);
-
-#include "termbox.h"
-
-#include "bytebuffer.inl"
-#include "output.inl"
-#include "input.inl"
-
-#define LAST_COORD_INIT -1
-
-static struct termios orig_tios;
-
-static struct bytebuffer output_buffer;
-static struct bytebuffer input_buffer;
-
-static int termw = -1;
-static int termh = -1;
-
-static int inout;
-static int winch_fds[2];
-
-static int cursor_x = 0;
-static int cursor_y = 0;
-
-static uint16_t background = TB_BLACK;
-static uint16_t foreground = TB_WHITE;
-
-static void update_size(void);
-static void update_term_size(void);
-static void send_attr(uint16_t fg, uint16_t bg);
-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(void)
-{
-  inout = open("/dev/tty", O_RDWR);
-  if (inout == -1) {
-    return TB_EFAILED_TO_OPEN_TTY;
-  }
-
-  if (init_term() < 0) {
-    close(inout);
-    return TB_EUNSUPPORTED_TERMINAL;
-  }
-
-  if (pipe(winch_fds) < 0) {
-    close(inout);
-    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(inout, &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(inout, TCSAFLUSH, &tios);
-
-  bytebuffer_init(&input_buffer, 128);
-  bytebuffer_init(&output_buffer, 32 * 1024);
-
-  bytebuffer_puts(&output_buffer, funcs[T_ENTER_KEYPAD]);
-  bytebuffer_puts(&output_buffer, funcs[T_ENTER_MOUSE]);
-  bytebuffer_puts(&output_buffer, funcs[T_ENTER_BRACKETED_PASTE]);
-  bytebuffer_flush(&output_buffer, inout);
-
-  update_term_size();
-  return 0;
-}
-
-void tb_shutdown(void)
-{
-  if (termw == -1) return;
-
-  bytebuffer_puts(&output_buffer, funcs[T_SGR0]);
-  bytebuffer_puts(&output_buffer, funcs[T_EXIT_KEYPAD]);
-  bytebuffer_puts(&output_buffer, funcs[T_EXIT_MOUSE]);
-  bytebuffer_puts(&output_buffer, funcs[T_EXIT_BRACKETED_PASTE]);
-  bytebuffer_flush(&output_buffer, inout);
-  tcsetattr(inout, TCSAFLUSH, &orig_tios);
-
-  shutdown_term();
-  close(inout);
-  close(winch_fds[0]);
-  close(winch_fds[1]);
-
-  bytebuffer_free(&output_buffer);
-  bytebuffer_free(&input_buffer);
-  termw = termh = -1;
-}
-
-int tb_is_active(void)
-{
-  return termw != -1;
-}
-
-void tb_print(uint32_t ch, uint16_t fg, uint16_t bg)
-{
-  assert(termw != -1);
-  send_attr(fg, bg);
-  if (ch == 0) {
-    // replace 0 with whitespace
-    bytebuffer_puts(&output_buffer, " ");
-  }
-  else {
-    char buf[7];
-    int bw = tb_utf8_unicode_to_char(buf, ch);
-    buf[bw] = '\0';
-    bytebuffer_puts(&output_buffer, buf);
-  }
-  bytebuffer_flush(&output_buffer, inout);
-}
-
-int tb_poll_event(struct tb_event *event)
-{
-  assert(termw != -1);
-  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;
-  assert(termw != -1);
-  return wait_fill_event(event, &tv);
-}
-
-int tb_width(void)
-{
-  assert(termw != -1);
-  return termw;
-}
-
-int tb_height(void)
-{
-  assert(termw != -1);
-  return termh;
-}
-
-void tb_clear(void)
-{
-  assert(termw != -1);
-  if (buffer_size_change_request) {
-    update_size();
-    buffer_size_change_request = 0;
-  }
-  send_clear();
-}
-
-void tb_set_clear_attributes(uint16_t fg, uint16_t bg)
-{
-  assert(termw != -1);
-  foreground = fg;
-  background = bg;
-}
-
-/* -------------------------------------------------------- */
-
-static int convertnum(uint32_t num, char* buf) {
-  int 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) bytebuffer_append(&output_buffer, (X), sizeof(X)-1)
-#define WRITE_INT(X) bytebuffer_append(&output_buffer, buf, convertnum((X), buf))
-
-void tb_set_cursor(int x, int y) {
-  char buf[32];
-  WRITE_LITERAL("\033[");
-  WRITE_INT(y+1);
-  WRITE_LITERAL(";");
-  WRITE_INT(x+1);
-  WRITE_LITERAL("H");
-  bytebuffer_flush(&output_buffer, inout);
-}
-
-static void get_term_size(int *w, int *h)
-{
-  struct winsize sz;
-  memset(&sz, 0, sizeof(sz));
-
-  ioctl(inout, 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(inout, TIOCGWINSZ, &sz);
-
-  termw = sz.ws_col;
-  termh = sz.ws_row;
-}
-
-static void send_attr(uint16_t fg, uint16_t bg)
-{
-#define LAST_ATTR_INIT 0xFFFF
-  static uint16_t lastfg = LAST_ATTR_INIT, lastbg = LAST_ATTR_INIT;
-  if (fg != lastfg || bg != lastbg) {
-    bytebuffer_puts(&output_buffer, funcs[T_SGR0]);
-
-    uint16_t fgcol = fg & 0xFF;
-    uint16_t bgcol = bg & 0xFF;
-
-    if (fg & TB_BOLD)
-      bytebuffer_puts(&output_buffer, funcs[T_BOLD]);
-    if (bg & TB_BOLD)
-      bytebuffer_puts(&output_buffer, funcs[T_BLINK]);
-    if (fg & TB_UNDERLINE)
-      bytebuffer_puts(&output_buffer, funcs[T_UNDERLINE]);
-    if ((fg & TB_REVERSE) || (bg & TB_REVERSE))
-      bytebuffer_puts(&output_buffer, funcs[T_REVERSE]);
-    char buf[32];
-    WRITE_LITERAL("\033[38;5;");
-    WRITE_INT(fgcol);
-    WRITE_LITERAL("m");
-    WRITE_LITERAL("\033[48;5;");
-    WRITE_INT(bgcol);
-    WRITE_LITERAL("m");
-    bytebuffer_flush(&output_buffer, inout);
-    lastfg = fg;
-    lastbg = bg;
-  }
-}
-
-const char* to_unicode(uint32_t c)
-{
-  static char buf[7];
-  int bw = tb_utf8_unicode_to_char(buf, c);
-  buf[bw] = '\0';
-  return buf;
-}
-
-static void send_clear(void)
-{
-  send_attr(foreground, background);
-  bytebuffer_puts(&output_buffer, funcs[T_CLEAR_SCREEN]);
-  tb_set_cursor(cursor_x, cursor_y);
-  bytebuffer_flush(&output_buffer, inout);
-}
-
-static void sigwinch_handler(int xxx)
-{
-  (void) xxx;
-  const int zzz = 1;
-  int yyy = write(winch_fds[1], &zzz, sizeof(int));
-  (void) yyy;
-}
-
-static void update_size(void)
-{
-  update_term_size();
-  send_clear();
-}
-
-static int read_up_to(int n) {
-  assert(n > 0);
-  const int prevlen = input_buffer.len;
-  bytebuffer_resize(&input_buffer, prevlen + n);
-
-  int read_n = 0;
-  while (read_n <= n) {
-    ssize_t r = 0;
-    if (read_n < n) {
-      r = read(inout, input_buffer.buf + prevlen + read_n, n - read_n);
-    }
-#ifdef __CYGWIN__
-    // While linux man for tty says when VMIN == 0 && VTIME == 0, read
-    // should return 0 when there is nothing to read, cygwin's read returns
-    // -1. Not sure why and if it's correct to ignore it, but let's pretend
-    // it's zero.
-    if (r < 0) r = 0;
-#endif
-    if (r < 0) {
-      // EAGAIN / EWOULDBLOCK shouldn't occur here
-      assert(errno != EAGAIN && errno != EWOULDBLOCK);
-      return -1;
-    } else if (r > 0) {
-      read_n += r;
-    } else {
-      bytebuffer_resize(&input_buffer, prevlen + read_n);
-      return read_n;
-    }
-  }
-  assert(!"unreachable");
-  return 0;
-}
-
-int tb_event_ready(void)
-{
-  return input_buffer.len > 0;
-}
-
-static int wait_fill_event(struct tb_event *event, struct timeval *timeout)
-{
-  // ;-)
-#define ENOUGH_DATA_FOR_PARSING 64
-  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, &input_buffer))
-    return event->type;
-
-  // it looks like input buffer is incomplete, let's try the short path,
-  // but first make sure there is enough space
-  int n = read_up_to(ENOUGH_DATA_FOR_PARSING);
-  if (n < 0)
-    return -1;
-  if (n > 0 && extract_event(event, &input_buffer))
-    return event->type;
-
-  // n == 0, or not enough data, let's go to select
-  while (1) {
-    FD_ZERO(&events);
-    FD_SET(inout, &events);
-    FD_SET(winch_fds[0], &events);
-    int maxfd = (winch_fds[0] > inout) ? winch_fds[0] : inout;
-    int result = select(maxfd+1, &events, 0, 0, timeout);
-    if (!result)
-      return 0;
-
-    if (FD_ISSET(inout, &events)) {
-      event->type = TB_EVENT_KEY;
-      n = read_up_to(ENOUGH_DATA_FOR_PARSING);
-      if (n < 0)
-        return -1;
-
-      if (n == 0)
-        continue;
-
-      if (extract_event(event, &input_buffer))
-        return event->type;
-    }
-    if (FD_ISSET(winch_fds[0], &events)) {
-      event->type = TB_EVENT_RESIZE;
-      int zzz = 0;
-      int yyy = read(winch_fds[0], &zzz, sizeof(int));
-      (void) yyy;
-      buffer_size_change_request = 1;
-      get_term_size(&event->w, &event->h);
-      return TB_EVENT_RESIZE;
-    }
-  }
-}
diff --git a/termbox/termbox.h b/termbox/termbox.h
deleted file mode 100644
index 43b326cb..00000000
--- a/termbox/termbox.h
+++ /dev/null
@@ -1,190 +0,0 @@
-#pragma once
-
-#include <stdint.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/*** 1. Controlling the screen. */
-
-/* Names for some foreground/background colors. */
-#define TB_BLACK 232
-#define TB_WHITE 255
-
-/* Some attributes of screen cells that can be combined with colors using
- * bitwise-OR. */
-#define TB_BOLD      0x0100
-#define TB_UNDERLINE 0x0200
-#define TB_REVERSE   0x0400
-
-/* Initialize screen and keyboard. */
-int tb_init(void);
-/* Possible error codes returned by tb_init() */
-#define TB_EUNSUPPORTED_TERMINAL -1
-#define TB_EFAILED_TO_OPEN_TTY   -2
-/* Termbox uses unix pipes in order to deliver a message from a signal handler
- * (SIGWINCH) to the main event reading loop. */
-#define TB_EPIPE_TRAP_ERROR      -3
-
-/* Restore terminal mode. */
-void tb_shutdown(void);
-
-int tb_is_active(void);
-
-/* Size of the screen. Return negative values before tb_init() or after
- * tb_shutdown() */
-int tb_width(void);
-int tb_height(void);
-
-/* Clear the screen using either TB_DEFAULT or the color/attributes set by
- * tb_set_clear_attributes(). */
-void tb_clear(void);
-void tb_set_clear_attributes(uint16_t fg, uint16_t bg);
-
-/* Move the cursor. Upper-left character is (0, 0). */
-void tb_set_cursor(int cx, int cy);
-
-/* Modify the screen at the cursor. */
-void tb_print(uint32_t ch, uint16_t fg, uint16_t bg);
-
-/*** 2. Controlling keyboard events. */
-
-struct tb_event {
-  uint8_t type;
-  /* fields for type TB_EVENT_KEY. At most one of 'key' and 'ch' will be set at
-   * any time. */
-  uint16_t key;
-  uint32_t ch;
-  /* fields for type TB_EVENT_RESIZE */
-  int32_t w;
-  int32_t h;
-  /* fields for type TB_EVENT_MOUSE */
-  int32_t x;
-  int32_t y;
-};
-
-/* Possible values for tb_event.type. */
-#define TB_EVENT_KEY    1
-#define TB_EVENT_RESIZE 2
-#define TB_EVENT_MOUSE  3
-
-/* Possible values for tb_event.key. */
-#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)
-#define TB_KEY_START_PASTE      (0xFFFF-28)
-#define TB_KEY_END_PASTE        (0xFFFF-29)
-#define TB_KEY_CTRL_ARROW_UP    (0xFFFF-30)
-#define TB_KEY_CTRL_ARROW_DOWN  (0xFFFF-31)
-#define TB_KEY_CTRL_ARROW_LEFT  (0xFFFF-32)
-#define TB_KEY_CTRL_ARROW_RIGHT (0xFFFF-33)
-#define TB_KEY_SHIFT_TAB        (0xFFFF-34)
-
-/* Names for some of the possible values for tb_event.ch. */
-/* 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 'DELETE' */
-/* 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'
- */
-/* Some aliases */
-#define TB_KEY_NEWLINE TB_KEY_CTRL_J
-#define TB_KEY_CARRIAGE_RETURN TB_KEY_CTRL_M
-
-/* 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.
- */
-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.
- */
-int tb_poll_event(struct tb_event *event);
-
-int tb_event_ready(void);
-
-/*** 3. Utility utf8 functions. */
-#define TB_EOF -1
-int tb_utf8_char_length(char c);
-int tb_utf8_char_to_unicode(uint32_t *out, const char *c);
-int tb_utf8_unicode_to_char(char *out, uint32_t c);
-const char* to_unicode(uint32_t c);
-
-#ifdef __cplusplus
-}
-#endif
diff --git a/termbox/utf8.c b/termbox/utf8.c
deleted file mode 100644
index 26c0c27b..00000000
--- a/termbox/utf8.c
+++ /dev/null
@@ -1,79 +0,0 @@
-#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 tb_utf8_char_length(char c)
-{
-  return utf8_length[(unsigned char)c];
-}
-
-int tb_utf8_char_to_unicode(uint32_t *out, const char *c)
-{
-  if (*c == 0)
-    return TB_EOF;
-
-  int i;
-  unsigned char len = tb_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 tb_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;
-}