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term.c

/* vi:set ts=8 sts=4 sw=4:
 *
 * VIM - Vi IMproved    by Bram Moolenaar
 *
 * Do ":help uganda"  in Vim to read copying and usage conditions.
 * Do ":help credits" in Vim to see a list of people who contributed.
 * See README.txt for an overview of the Vim source code.
 */
/*
 *
 * term.c: functions for controlling the terminal
 *
 * primitive termcap support for Amiga, MSDOS, and Win32 included
 *
 * NOTE: padding and variable substitution is not performed,
 * when compiling without HAVE_TGETENT, we use tputs() and tgoto() dummies.
 */

/*
 * Some systems have a prototype for tgetstr() with (char *) instead of
 * (char **). This define removes that prototype. We include our own prototype
 * below.
 */

#define tgetstr tgetstr_defined_wrong
#include "vim.h"

#ifdef HAVE_TGETENT
# ifdef HAVE_TERMIOS_H
#  include <termios.h>      /* seems to be required for some Linux */
# endif
# ifdef HAVE_TERMCAP_H
#  include <termcap.h>
# endif

/*
 * A few linux systems define outfuntype in termcap.h to be used as the third
 * argument for tputs().
 */
# ifdef VMS
#  define TPUTSFUNCAST
# else
#  ifdef HAVE_OUTFUNTYPE
#   define TPUTSFUNCAST (outfuntype)
#  else
#   define TPUTSFUNCAST (int (*)())
#  endif
# endif
#endif

#undef tgetstr

/*
 * Here are the builtin termcap entries.  They are not stored as complete
 * Tcarr structures, as such a structure is too big.
 *
 * The entries are compact, therefore they normally are included even when
 * HAVE_TGETENT is defined. When HAVE_TGETENT is defined, the builtin entries
 * can be accessed with "builtin_amiga", "builtin_ansi", "builtin_debug", etc.
 *
 * Each termcap is a list of builtin_term structures. It always starts with
 * KS_NAME, which separates the entries.  See parse_builtin_tcap() for all
 * details.
 * bt_entry is either a KS_xxx code (>= 0), or a K_xxx code.
 *
 * Entries marked with "guessed" may be wrong.
 */
struct builtin_term
{
    int           bt_entry;
    char    *bt_string;
};

/* start of keys that are not directly used by Vim but can be mapped */
#define BT_EXTRA_KEYS   0x101

static struct builtin_term *find_builtin_term __ARGS((char_u *name));
static void parse_builtin_tcap __ARGS((char_u *s));
static void term_color __ARGS((char_u *s, int n));
static void gather_termleader __ARGS((void));
#ifdef FEAT_TERMRESPONSE
static void req_codes_from_term __ARGS((void));
static void req_more_codes_from_term __ARGS((void));
static void got_code_from_term __ARGS((char_u *code, int len));
static void check_for_codes_from_term __ARGS((void));
#endif
#if defined(FEAT_GUI) \
    || (defined(FEAT_MOUSE) && (!defined(UNIX) || defined(FEAT_MOUSE_XTERM)))
static int get_bytes_from_buf __ARGS((char_u *, char_u *, int));
#endif
static void del_termcode_idx __ARGS((int idx));
static int term_is_builtin __ARGS((char_u *name));
static int term_7to8bit __ARGS((char_u *p));
#ifdef FEAT_TERMRESPONSE
static void switch_to_8bit __ARGS((void));
#endif

#ifdef HAVE_TGETENT
static char_u *tgetent_error __ARGS((char_u *, char_u *));

/*
 * Here is our own prototype for tgetstr(), any prototypes from the include
 * files have been disabled by the define at the start of this file.
 */
char        *tgetstr __ARGS((char *, char **));

# ifdef FEAT_TERMRESPONSE
/* Request Terminal Version status: */
#  define CRV_GET 1     /* send T_CRV when switched to RAW mode */
#  define CRV_SENT      2     /* did send T_CRV, waiting for answer */
#  define CRV_GOT 3     /* received T_CRV response */
static int crv_status = CRV_GET;
# endif

/*
 * Don't declare these variables if termcap.h contains them.
 * Autoconf checks if these variables should be declared extern (not all
 * systems have them).
 * Some versions define ospeed to be speed_t, but that is incompatible with
 * BSD, where ospeed is short and speed_t is long.
 */
# ifndef HAVE_OSPEED
#  ifdef OSPEED_EXTERN
extern short ospeed;
#   else
short ospeed;
#   endif
# endif
# ifndef HAVE_UP_BC_PC
#  ifdef UP_BC_PC_EXTERN
extern char *UP, *BC, PC;
#  else
char *UP, *BC, PC;
#  endif
# endif

# define TGETSTR(s, p)  vim_tgetstr((s), (p))
# define TGETENT(b, t)  tgetent((char *)(b), (char *)(t))
static char_u *vim_tgetstr __ARGS((char *s, char_u **pp));
#endif /* HAVE_TGETENT */

static int  detected_8bit = FALSE;  /* detected 8-bit terminal */

static struct builtin_term builtin_termcaps[] =
{

#if defined(FEAT_GUI)
/*
 * GUI pseudo term-cap.
 */
    {(int)KS_NAME,      "gui"},
    {(int)KS_CE,  IF_EB("\033|$", ESC_STR "|$")},
    {(int)KS_AL,  IF_EB("\033|i", ESC_STR "|i")},
# ifdef TERMINFO
    {(int)KS_CAL, IF_EB("\033|%p1%dI", ESC_STR "|%p1%dI")},
# else
    {(int)KS_CAL, IF_EB("\033|%dI", ESC_STR "|%dI")},
# endif
    {(int)KS_DL,  IF_EB("\033|d", ESC_STR "|d")},
# ifdef TERMINFO
    {(int)KS_CDL, IF_EB("\033|%p1%dD", ESC_STR "|%p1%dD")},
    {(int)KS_CS,  IF_EB("\033|%p1%d;%p2%dR", ESC_STR "|%p1%d;%p2%dR")},
#  ifdef FEAT_VERTSPLIT
    {(int)KS_CSV, IF_EB("\033|%p1%d;%p2%dV", ESC_STR "|%p1%d;%p2%dV")},
#  endif
# else
    {(int)KS_CDL, IF_EB("\033|%dD", ESC_STR "|%dD")},
    {(int)KS_CS,  IF_EB("\033|%d;%dR", ESC_STR "|%d;%dR")},
#  ifdef FEAT_VERTSPLIT
    {(int)KS_CSV, IF_EB("\033|%d;%dV", ESC_STR "|%d;%dV")},
#  endif
# endif
    {(int)KS_CL,  IF_EB("\033|C", ESC_STR "|C")},
                  /* attributes switched on with 'h', off with * 'H' */
    {(int)KS_ME,  IF_EB("\033|31H", ESC_STR "|31H")}, /* HL_ALL */
    {(int)KS_MR,  IF_EB("\033|1h", ESC_STR "|1h")},   /* HL_INVERSE */
    {(int)KS_MD,  IF_EB("\033|2h", ESC_STR "|2h")},   /* HL_BOLD */
    {(int)KS_SE,  IF_EB("\033|16H", ESC_STR "|16H")}, /* HL_STANDOUT */
    {(int)KS_SO,  IF_EB("\033|16h", ESC_STR "|16h")}, /* HL_STANDOUT */
    {(int)KS_UE,  IF_EB("\033|8H", ESC_STR "|8H")},   /* HL_UNDERLINE */
    {(int)KS_US,  IF_EB("\033|8h", ESC_STR "|8h")},   /* HL_UNDERLINE */
    {(int)KS_UCE, IF_EB("\033|8C", ESC_STR "|8C")},   /* HL_UNDERCURL */
    {(int)KS_UCS, IF_EB("\033|8c", ESC_STR "|8c")},   /* HL_UNDERCURL */
    {(int)KS_CZR, IF_EB("\033|4H", ESC_STR "|4H")},   /* HL_ITALIC */
    {(int)KS_CZH, IF_EB("\033|4h", ESC_STR "|4h")},   /* HL_ITALIC */
    {(int)KS_VB,  IF_EB("\033|f", ESC_STR "|f")},
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},
    {(int)KS_LE,  "\b"},            /* cursor-left = BS */
    {(int)KS_ND,  "\014"},    /* cursor-right = CTRL-L */
# ifdef TERMINFO
    {(int)KS_CM,  IF_EB("\033|%p1%d;%p2%dM", ESC_STR "|%p1%d;%p2%dM")},
# else
    {(int)KS_CM,  IF_EB("\033|%d;%dM", ESC_STR "|%d;%dM")},
# endif
      /* there are no key sequences here, the GUI sequences are recognized
       * in check_termcode() */
#endif

#ifndef NO_BUILTIN_TCAPS
# if defined(RISCOS) || defined(ALL_BUILTIN_TCAPS)
/*
 * Default for the Acorn.
 */
    {(int)KS_NAME,      "riscos"},
    {(int)KS_CL,  "\014"},          /* Cls and Home Cursor */
    {(int)KS_CM,  "\001%d\001%d\002"},    /* Position cursor */

    {(int)KS_CCO, "16"},                  /* Allow 16 colors */

    {(int)KS_CAF, "\001%d\021"},          /* Set foreground colour */
    {(int)KS_CAB, "\001%d\022"},          /* Set background colour */


    {(int)KS_ME,  "\004"},          /* Normal mode */
    {(int)KS_MR,  "\005"},          /* Reverse */

    {(int)KS_VI,  "\016"},          /* Cursor invisible */
    {(int)KS_VE,  "\017"},          /* Cursor visible */
    {(int)KS_VS,  "\020"},          /* Cursor very visible */

    {(int)KS_CS,  "\001%d\001%d\003"},    /* Set scroll region */
    {(int)KS_SR,  "\023"},          /* Scroll text down */
    {K_UP,        "\217"},
    {K_DOWN,            "\216"},
    {K_LEFT,            "\214"},
    {K_RIGHT,           "\215"},
    {K_S_UP,            "\237"},
    {K_S_DOWN,          "\236"},
    {K_S_LEFT,          "\234"},
    {K_S_RIGHT,         "\235"},

    {K_F1,        "\201"},
    {K_F2,        "\202"},
    {K_F3,        "\203"},
    {K_F4,        "\204"},
    {K_F5,        "\205"},
    {K_F6,        "\206"},
    {K_F7,        "\207"},
    {K_F8,        "\210"},
    {K_F9,        "\211"},
    {K_F10,       "\312"},
    {K_F11,       "\313"},
    {K_F12,       "\314"},
    {K_S_F1,            "\221"},
    {K_S_F2,            "\222"},
    {K_S_F3,            "\223"},
    {K_S_F4,            "\224"},
    {K_S_F5,            "\225"},
    {K_S_F6,            "\226"},
    {K_S_F7,            "\227"},
    {K_S_F8,            "\230"},
    {K_S_F9,            "\231"},
    {K_S_F10,           "\332"},
    {K_S_F11,           "\333"},
    {K_S_F12,           "\334"},
    {K_BS,        "\010"},
    {K_INS,       "\315"},
    {K_DEL,       "\177"},
    {K_HOME,            "\036"},
    {K_END,       "\213"},
    {K_PAGEUP,          "\237"},
    {K_PAGEDOWN,  "\236"},
# endif     /* Acorn terminal */


# if defined(AMIGA) || defined(ALL_BUILTIN_TCAPS)
/*
 * Amiga console window, default for Amiga
 */
    {(int)KS_NAME,      "amiga"},
    {(int)KS_CE,  "\033[K"},
    {(int)KS_CD,  "\033[J"},
    {(int)KS_AL,  "\033[L"},
#  ifdef TERMINFO
    {(int)KS_CAL, "\033[%p1%dL"},
#  else
    {(int)KS_CAL, "\033[%dL"},
#  endif
    {(int)KS_DL,  "\033[M"},
#  ifdef TERMINFO
    {(int)KS_CDL, "\033[%p1%dM"},
#  else
    {(int)KS_CDL, "\033[%dM"},
#  endif
    {(int)KS_CL,  "\014"},
    {(int)KS_VI,  "\033[0 p"},
    {(int)KS_VE,  "\033[1 p"},
    {(int)KS_ME,  "\033[0m"},
    {(int)KS_MR,  "\033[7m"},
    {(int)KS_MD,  "\033[1m"},
    {(int)KS_SE,  "\033[0m"},
    {(int)KS_SO,  "\033[33m"},
    {(int)KS_US,  "\033[4m"},
    {(int)KS_UE,  "\033[0m"},
    {(int)KS_CZH, "\033[3m"},
    {(int)KS_CZR, "\033[0m"},
#if defined(__MORPHOS__) || defined(__AROS__)
    {(int)KS_CCO, "8"},       /* allow 8 colors */
#  ifdef TERMINFO
    {(int)KS_CAB, "\033[4%p1%dm"},/* set background color */
    {(int)KS_CAF, "\033[3%p1%dm"},/* set foreground color */
#  else
    {(int)KS_CAB, "\033[4%dm"},     /* set background color */
    {(int)KS_CAF, "\033[3%dm"},     /* set foreground color */
#  endif
    {(int)KS_OP,  "\033[m"},  /* reset colors */
#endif
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},       /* guessed */
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  "\033[%i%p1%d;%p2%dH"},
#  else
    {(int)KS_CM,  "\033[%i%d;%dH"},
#  endif
#if defined(__MORPHOS__)
    {(int)KS_SR,  "\033M"},
#endif
#  ifdef TERMINFO
    {(int)KS_CRI, "\033[%p1%dC"},
#  else
    {(int)KS_CRI, "\033[%dC"},
#  endif
    {K_UP,        "\233A"},
    {K_DOWN,            "\233B"},
    {K_LEFT,            "\233D"},
    {K_RIGHT,           "\233C"},
    {K_S_UP,            "\233T"},
    {K_S_DOWN,          "\233S"},
    {K_S_LEFT,          "\233 A"},
    {K_S_RIGHT,         "\233 @"},
    {K_S_TAB,           "\233Z"},
    {K_F1,        "\233\060~"},/* some compilers don't dig "\2330" */
    {K_F2,        "\233\061~"},
    {K_F3,        "\233\062~"},
    {K_F4,        "\233\063~"},
    {K_F5,        "\233\064~"},
    {K_F6,        "\233\065~"},
    {K_F7,        "\233\066~"},
    {K_F8,        "\233\067~"},
    {K_F9,        "\233\070~"},
    {K_F10,       "\233\071~"},
    {K_S_F1,            "\233\061\060~"},
    {K_S_F2,            "\233\061\061~"},
    {K_S_F3,            "\233\061\062~"},
    {K_S_F4,            "\233\061\063~"},
    {K_S_F5,            "\233\061\064~"},
    {K_S_F6,            "\233\061\065~"},
    {K_S_F7,            "\233\061\066~"},
    {K_S_F8,            "\233\061\067~"},
    {K_S_F9,            "\233\061\070~"},
    {K_S_F10,           "\233\061\071~"},
    {K_HELP,            "\233?~"},
    {K_INS,       "\233\064\060~"}, /* 101 key keyboard */
    {K_PAGEUP,          "\233\064\061~"}, /* 101 key keyboard */
    {K_PAGEDOWN,  "\233\064\062~"}, /* 101 key keyboard */
    {K_HOME,            "\233\064\064~"}, /* 101 key keyboard */
    {K_END,       "\233\064\065~"}, /* 101 key keyboard */

    {BT_EXTRA_KEYS,     ""},
    {TERMCAP2KEY('#', '2'), "\233\065\064~"},   /* shifted home key */
    {TERMCAP2KEY('#', '3'), "\233\065\060~"},   /* shifted insert key */
    {TERMCAP2KEY('*', '7'), "\233\065\065~"},   /* shifted end key */
# endif

# if defined(__BEOS__) || defined(ALL_BUILTIN_TCAPS)
/*
 * almost standard ANSI terminal, default for bebox
 */
    {(int)KS_NAME,      "beos-ansi"},
    {(int)KS_CE,  "\033[K"},
    {(int)KS_CD,  "\033[J"},
    {(int)KS_AL,  "\033[L"},
#  ifdef TERMINFO
    {(int)KS_CAL, "\033[%p1%dL"},
#  else
    {(int)KS_CAL, "\033[%dL"},
#  endif
    {(int)KS_DL,  "\033[M"},
#  ifdef TERMINFO
    {(int)KS_CDL, "\033[%p1%dM"},
#  else
    {(int)KS_CDL, "\033[%dM"},
#  endif
#ifdef BEOS_PR_OR_BETTER
#  ifdef TERMINFO
    {(int)KS_CS,  "\033[%i%p1%d;%p2%dr"},
#  else
    {(int)KS_CS,  "\033[%i%d;%dr"}, /* scroll region */
#  endif
#endif
    {(int)KS_CL,  "\033[H\033[2J"},
#ifdef notyet
    {(int)KS_VI,  "[VI]"}, /* cursor invisible, VT320: CSI ? 25 l */
    {(int)KS_VE,  "[VE]"}, /* cursor visible, VT320: CSI ? 25 h */
#endif
    {(int)KS_ME,  "\033[m"},  /* normal mode */
    {(int)KS_MR,  "\033[7m"}, /* reverse */
    {(int)KS_MD,  "\033[1m"}, /* bold */
    {(int)KS_SO,  "\033[31m"},      /* standout mode: red */
    {(int)KS_SE,  "\033[m"},  /* standout end */
    {(int)KS_CZH, "\033[35m"},      /* italic: purple */
    {(int)KS_CZR, "\033[m"},  /* italic end */
    {(int)KS_US,  "\033[4m"}, /* underscore mode */
    {(int)KS_UE,  "\033[m"},  /* underscore end */
    {(int)KS_CCO, "8"},       /* allow 8 colors */
#  ifdef TERMINFO
    {(int)KS_CAB, "\033[4%p1%dm"},/* set background color */
    {(int)KS_CAF, "\033[3%p1%dm"},/* set foreground color */
#  else
    {(int)KS_CAB, "\033[4%dm"},     /* set background color */
    {(int)KS_CAF, "\033[3%dm"},     /* set foreground color */
#  endif
    {(int)KS_OP,  "\033[m"},  /* reset colors */
    {(int)KS_MS,  "y"},       /* safe to move cur in reverse mode */
    {(int)KS_UT,  "y"},       /* guessed */
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  "\033[%i%p1%d;%p2%dH"},
#  else
    {(int)KS_CM,  "\033[%i%d;%dH"},
#  endif
    {(int)KS_SR,  "\033M"},
#  ifdef TERMINFO
    {(int)KS_CRI, "\033[%p1%dC"},
#  else
    {(int)KS_CRI, "\033[%dC"},
#  endif
#if defined(BEOS_DR8)
    {(int)KS_DB,  ""},        /* hack! see screen.c */
#endif

    {K_UP,        "\033[A"},
    {K_DOWN,            "\033[B"},
    {K_LEFT,            "\033[D"},
    {K_RIGHT,           "\033[C"},
# endif

# if defined(UNIX) || defined(ALL_BUILTIN_TCAPS) || defined(SOME_BUILTIN_TCAPS) || defined(__EMX__)
/*
 * standard ANSI terminal, default for unix
 */
    {(int)KS_NAME,      "ansi"},
    {(int)KS_CE,  IF_EB("\033[K", ESC_STR "[K")},
    {(int)KS_AL,  IF_EB("\033[L", ESC_STR "[L")},
#  ifdef TERMINFO
    {(int)KS_CAL, IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
#  else
    {(int)KS_CAL, IF_EB("\033[%dL", ESC_STR "[%dL")},
#  endif
    {(int)KS_DL,  IF_EB("\033[M", ESC_STR "[M")},
#  ifdef TERMINFO
    {(int)KS_CDL, IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
#  else
    {(int)KS_CDL, IF_EB("\033[%dM", ESC_STR "[%dM")},
#  endif
    {(int)KS_CL,  IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
    {(int)KS_ME,  IF_EB("\033[0m", ESC_STR "[0m")},
    {(int)KS_MR,  IF_EB("\033[7m", ESC_STR "[7m")},
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},       /* guessed */
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  IF_EB("\033[%i%p1%d;%p2%dH", ESC_STR "[%i%p1%d;%p2%dH")},
#  else
    {(int)KS_CM,  IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
#  endif
#  ifdef TERMINFO
    {(int)KS_CRI, IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
#  else
    {(int)KS_CRI, IF_EB("\033[%dC", ESC_STR "[%dC")},
#  endif
# endif

# if defined(MSDOS) || defined(ALL_BUILTIN_TCAPS) || defined(__EMX__)
/*
 * These codes are valid when nansi.sys or equivalent has been installed.
 * Function keys on a PC are preceded with a NUL. These are converted into
 * K_NUL '\316' in mch_inchar(), because we cannot handle NULs in key codes.
 * CTRL-arrow is used instead of SHIFT-arrow.
 */
#ifdef __EMX__
    {(int)KS_NAME,      "os2ansi"},
#else
    {(int)KS_NAME,      "pcansi"},
    {(int)KS_DL,  "\033[M"},
    {(int)KS_AL,  "\033[L"},
#endif
    {(int)KS_CE,  "\033[K"},
    {(int)KS_CL,  "\033[2J"},
    {(int)KS_ME,  "\033[0m"},
    {(int)KS_MR,  "\033[5m"}, /* reverse: black on lightgrey */
    {(int)KS_MD,  "\033[1m"}, /* bold: white text */
    {(int)KS_SE,  "\033[0m"}, /* standout end */
    {(int)KS_SO,  "\033[31m"},      /* standout: white on blue */
    {(int)KS_CZH, "\033[34;43m"},   /* italic mode: blue text on yellow */
    {(int)KS_CZR, "\033[0m"}, /* italic mode end */
    {(int)KS_US,  "\033[36;41m"},   /* underscore mode: cyan text on red */
    {(int)KS_UE,  "\033[0m"}, /* underscore mode end */
    {(int)KS_CCO, "8"},       /* allow 8 colors */
#  ifdef TERMINFO
    {(int)KS_CAB, "\033[4%p1%dm"},/* set background color */
    {(int)KS_CAF, "\033[3%p1%dm"},/* set foreground color */
#  else
    {(int)KS_CAB, "\033[4%dm"},     /* set background color */
    {(int)KS_CAF, "\033[3%dm"},     /* set foreground color */
#  endif
    {(int)KS_OP,  "\033[0m"}, /* reset colors */
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},       /* guessed */
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  "\033[%i%p1%d;%p2%dH"},
#  else
    {(int)KS_CM,  "\033[%i%d;%dH"},
#  endif
#  ifdef TERMINFO
    {(int)KS_CRI, "\033[%p1%dC"},
#  else
    {(int)KS_CRI, "\033[%dC"},
#  endif
    {K_UP,        "\316H"},
    {K_DOWN,            "\316P"},
    {K_LEFT,            "\316K"},
    {K_RIGHT,           "\316M"},
    {K_S_LEFT,          "\316s"},
    {K_S_RIGHT,         "\316t"},
    {K_F1,        "\316;"},
    {K_F2,        "\316<"},
    {K_F3,        "\316="},
    {K_F4,        "\316>"},
    {K_F5,        "\316?"},
    {K_F6,        "\316@"},
    {K_F7,        "\316A"},
    {K_F8,        "\316B"},
    {K_F9,        "\316C"},
    {K_F10,       "\316D"},
    {K_F11,       "\316\205"},      /* guessed */
    {K_F12,       "\316\206"},      /* guessed */
    {K_S_F1,            "\316T"},
    {K_S_F2,            "\316U"},
    {K_S_F3,            "\316V"},
    {K_S_F4,            "\316W"},
    {K_S_F5,            "\316X"},
    {K_S_F6,            "\316Y"},
    {K_S_F7,            "\316Z"},
    {K_S_F8,            "\316["},
    {K_S_F9,            "\316\\"},
    {K_S_F10,           "\316]"},
    {K_S_F11,           "\316\207"},      /* guessed */
    {K_S_F12,           "\316\210"},      /* guessed */
    {K_INS,       "\316R"},
    {K_DEL,       "\316S"},
    {K_HOME,            "\316G"},
    {K_END,       "\316O"},
    {K_PAGEDOWN,  "\316Q"},
    {K_PAGEUP,          "\316I"},
# endif

# if defined(MSDOS)
/*
 * These codes are valid for the pc video.  The entries that start with ESC |
 * are translated into conio calls in os_msdos.c. Default for MSDOS.
 */
    {(int)KS_NAME,      "pcterm"},
    {(int)KS_CE,  "\033|K"},
    {(int)KS_AL,  "\033|L"},
    {(int)KS_DL,  "\033|M"},
#  ifdef TERMINFO
    {(int)KS_CS,  "\033|%i%p1%d;%p2%dr"},
#   ifdef FEAT_VERTSPLIT
    {(int)KS_CSV, "\033|%i%p1%d;%p2%dV"},
#   endif
#  else
    {(int)KS_CS,  "\033|%i%d;%dr"},
#   ifdef FEAT_VERTSPLIT
    {(int)KS_CSV, "\033|%i%d;%dV"},
#   endif
#  endif
    {(int)KS_CL,  "\033|J"},
    {(int)KS_ME,  "\033|0m"}, /* normal */
    {(int)KS_MR,  "\033|112m"},     /* reverse: black on lightgrey */
    {(int)KS_MD,  "\033|15m"},      /* bold: white text */
    {(int)KS_SE,  "\033|0m"}, /* standout end */
    {(int)KS_SO,  "\033|31m"},      /* standout: white on blue */
    {(int)KS_CZH, "\033|225m"},     /* italic mode: blue text on yellow */
    {(int)KS_CZR, "\033|0m"}, /* italic mode end */
    {(int)KS_US,  "\033|67m"},      /* underscore mode: cyan text on red */
    {(int)KS_UE,  "\033|0m"}, /* underscore mode end */
    {(int)KS_CCO, "16"},            /* allow 16 colors */
#  ifdef TERMINFO
    {(int)KS_CAB, "\033|%p1%db"},   /* set background color */
    {(int)KS_CAF, "\033|%p1%df"},   /* set foreground color */
#  else
    {(int)KS_CAB, "\033|%db"},      /* set background color */
    {(int)KS_CAF, "\033|%df"},      /* set foreground color */
#  endif
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  "\033|%i%p1%d;%p2%dH"},
#  else
    {(int)KS_CM,  "\033|%i%d;%dH"},
#  endif
#ifdef DJGPP
    {(int)KS_VB,  "\033|B"},  /* visual bell */
#endif
    {K_UP,        "\316H"},
    {K_DOWN,            "\316P"},
    {K_LEFT,            "\316K"},
    {K_RIGHT,           "\316M"},
    {K_S_LEFT,          "\316s"},
    {K_S_RIGHT,         "\316t"},
    {K_S_TAB,           "\316\017"},
    {K_F1,        "\316;"},
    {K_F2,        "\316<"},
    {K_F3,        "\316="},
    {K_F4,        "\316>"},
    {K_F5,        "\316?"},
    {K_F6,        "\316@"},
    {K_F7,        "\316A"},
    {K_F8,        "\316B"},
    {K_F9,        "\316C"},
    {K_F10,       "\316D"},
    {K_F11,       "\316\205"},
    {K_F12,       "\316\206"},
    {K_S_F1,            "\316T"},
    {K_S_F2,            "\316U"},
    {K_S_F3,            "\316V"},
    {K_S_F4,            "\316W"},
    {K_S_F5,            "\316X"},
    {K_S_F6,            "\316Y"},
    {K_S_F7,            "\316Z"},
    {K_S_F8,            "\316["},
    {K_S_F9,            "\316\\"},
    {K_S_F10,           "\316]"},
    {K_S_F11,           "\316\207"},
    {K_S_F12,           "\316\210"},
    {K_INS,       "\316R"},
    {K_DEL,       "\316S"},
    {K_HOME,            "\316G"},
    {K_END,       "\316O"},
    {K_PAGEDOWN,  "\316Q"},
    {K_PAGEUP,          "\316I"},
    {K_KPLUS,           "\316N"},
    {K_KMINUS,          "\316J"},
    {K_KMULTIPLY, "\3167"},
    {K_K0,        "\316\332"},
    {K_K1,        "\316\336"},
    {K_K2,        "\316\342"},
    {K_K3,        "\316\346"},
    {K_K4,        "\316\352"},
    {K_K5,        "\316\356"},
    {K_K6,        "\316\362"},
    {K_K7,        "\316\366"},
    {K_K8,        "\316\372"},
    {K_K9,        "\316\376"},
# endif

# if defined(WIN3264) || defined(ALL_BUILTIN_TCAPS) || defined(__EMX__)
/*
 * These codes are valid for the Win32 Console .  The entries that start with
 * ESC | are translated into console calls in os_win32.c.  The function keys
 * are also translated in os_win32.c.
 */
    {(int)KS_NAME,      "win32"},
    {(int)KS_CE,  "\033|K"},  /* clear to end of line */
    {(int)KS_AL,  "\033|L"},  /* add new blank line */
#  ifdef TERMINFO
    {(int)KS_CAL, "\033|%p1%dL"},   /* add number of new blank lines */
#  else
    {(int)KS_CAL, "\033|%dL"},      /* add number of new blank lines */
#  endif
    {(int)KS_DL,  "\033|M"},  /* delete line */
#  ifdef TERMINFO
    {(int)KS_CDL, "\033|%p1%dM"},   /* delete number of lines */
#  else
    {(int)KS_CDL, "\033|%dM"},      /* delete number of lines */
#  endif
    {(int)KS_CL,  "\033|J"},  /* clear screen */
    {(int)KS_CD,  "\033|j"},  /* clear to end of display */
    {(int)KS_VI,  "\033|v"},  /* cursor invisible */
    {(int)KS_VE,  "\033|V"},  /* cursor visible */

    {(int)KS_ME,  "\033|0m"}, /* normal */
    {(int)KS_MR,  "\033|112m"},     /* reverse: black on lightgray */
    {(int)KS_MD,  "\033|15m"},      /* bold: white on black */
#if 1
    {(int)KS_SO,  "\033|31m"},      /* standout: white on blue */
    {(int)KS_SE,  "\033|0m"}, /* standout end */
#else
    {(int)KS_SO,  "\033|F"},  /* standout: high intensity */
    {(int)KS_SE,  "\033|f"},  /* standout end */
#endif
    {(int)KS_CZH, "\033|225m"},     /* italic: blue text on yellow */
    {(int)KS_CZR, "\033|0m"}, /* italic end */
    {(int)KS_US,  "\033|67m"},      /* underscore: cyan text on red */
    {(int)KS_UE,  "\033|0m"}, /* underscore end */
    {(int)KS_CCO, "16"},            /* allow 16 colors */
#  ifdef TERMINFO
    {(int)KS_CAB, "\033|%p1%db"},   /* set background color */
    {(int)KS_CAF, "\033|%p1%df"},   /* set foreground color */
#  else
    {(int)KS_CAB, "\033|%db"},      /* set background color */
    {(int)KS_CAF, "\033|%df"},      /* set foreground color */
#  endif

    {(int)KS_MS,  "y"},       /* save to move cur in reverse mode */
    {(int)KS_UT,  "y"},
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  "\033|%i%p1%d;%p2%dH"},/* cursor motion */
#  else
    {(int)KS_CM,  "\033|%i%d;%dH"},/* cursor motion */
#  endif
    {(int)KS_VB,  "\033|B"},  /* visual bell */
    {(int)KS_TI,  "\033|S"},  /* put terminal in termcap mode */
    {(int)KS_TE,  "\033|E"},  /* out of termcap mode */
#  ifdef TERMINFO
    {(int)KS_CS,  "\033|%i%p1%d;%p2%dr"},/* scroll region */
#  else
    {(int)KS_CS,  "\033|%i%d;%dr"},/* scroll region */
#  endif

    {K_UP,        "\316H"},
    {K_DOWN,            "\316P"},
    {K_LEFT,            "\316K"},
    {K_RIGHT,           "\316M"},
    {K_S_UP,            "\316\304"},
    {K_S_DOWN,          "\316\317"},
    {K_S_LEFT,          "\316\311"},
    {K_C_LEFT,          "\316s"},
    {K_S_RIGHT,         "\316\313"},
    {K_C_RIGHT,         "\316t"},
    {K_S_TAB,           "\316\017"},
    {K_F1,        "\316;"},
    {K_F2,        "\316<"},
    {K_F3,        "\316="},
    {K_F4,        "\316>"},
    {K_F5,        "\316?"},
    {K_F6,        "\316@"},
    {K_F7,        "\316A"},
    {K_F8,        "\316B"},
    {K_F9,        "\316C"},
    {K_F10,       "\316D"},
    {K_F11,       "\316\205"},
    {K_F12,       "\316\206"},
    {K_S_F1,            "\316T"},
    {K_S_F2,            "\316U"},
    {K_S_F3,            "\316V"},
    {K_S_F4,            "\316W"},
    {K_S_F5,            "\316X"},
    {K_S_F6,            "\316Y"},
    {K_S_F7,            "\316Z"},
    {K_S_F8,            "\316["},
    {K_S_F9,            "\316\\"},
    {K_S_F10,           "\316]"},
    {K_S_F11,           "\316\207"},
    {K_S_F12,           "\316\210"},
    {K_INS,       "\316R"},
    {K_DEL,       "\316S"},
    {K_HOME,            "\316G"},
    {K_S_HOME,          "\316\302"},
    {K_C_HOME,          "\316w"},
    {K_END,       "\316O"},
    {K_S_END,           "\316\315"},
    {K_C_END,           "\316u"},
    {K_PAGEDOWN,  "\316Q"},
    {K_PAGEUP,          "\316I"},
    {K_KPLUS,           "\316N"},
    {K_KMINUS,          "\316J"},
    {K_KMULTIPLY, "\316\067"},
    {K_K0,        "\316\332"},
    {K_K1,        "\316\336"},
    {K_K2,        "\316\342"},
    {K_K3,        "\316\346"},
    {K_K4,        "\316\352"},
    {K_K5,        "\316\356"},
    {K_K6,        "\316\362"},
    {K_K7,        "\316\366"},
    {K_K8,        "\316\372"},
    {K_K9,        "\316\376"},
# endif

# if defined(VMS) || defined(ALL_BUILTIN_TCAPS)
/*
 * VT320 is working as an ANSI terminal compatible DEC terminal.
 * (it covers VT1x0, VT2x0 and VT3x0 up to VT320 on VMS as well)
 * Note: K_F1...K_F5 are for internal use, should not be defined.
 * TODO:- rewrite ESC[ codes to CSI
 *      - keyboard languages (CSI ? 26 n)
 */
    {(int)KS_NAME,      "vt320"},
    {(int)KS_CE,  IF_EB("\033[K", ESC_STR "[K")},
    {(int)KS_AL,  IF_EB("\033[L", ESC_STR "[L")},
#  ifdef TERMINFO
    {(int)KS_CAL, IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
#  else
    {(int)KS_CAL, IF_EB("\033[%dL", ESC_STR "[%dL")},
#  endif
    {(int)KS_DL,  IF_EB("\033[M", ESC_STR "[M")},
#  ifdef TERMINFO
    {(int)KS_CDL, IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
#  else
    {(int)KS_CDL, IF_EB("\033[%dM", ESC_STR "[%dM")},
#  endif
    {(int)KS_CL,  IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
    {(int)KS_CD,  IF_EB("\033[J", ESC_STR "[J")},
    {(int)KS_CCO, "8"},             /* allow 8 colors */
    {(int)KS_ME,  IF_EB("\033[0m", ESC_STR "[0m")},
    {(int)KS_MR,  IF_EB("\033[7m", ESC_STR "[7m")},
    {(int)KS_MD,  IF_EB("\033[1m", ESC_STR "[1m")},  /* bold mode */
    {(int)KS_SE,  IF_EB("\033[22m", ESC_STR "[22m")},/* normal mode */
    {(int)KS_UE,  IF_EB("\033[24m", ESC_STR "[24m")},/* exit underscore mode */
    {(int)KS_US,  IF_EB("\033[4m", ESC_STR "[4m")},  /* underscore mode */
    {(int)KS_CZH, IF_EB("\033[34;43m", ESC_STR "[34;43m")},  /* italic mode: blue text on yellow */
    {(int)KS_CZR, IF_EB("\033[0m", ESC_STR "[0m")},       /* italic mode end */
    {(int)KS_CAB, IF_EB("\033[4%dm", ESC_STR "[4%dm")},         /* set background color (ANSI) */
    {(int)KS_CAF, IF_EB("\033[3%dm", ESC_STR "[3%dm")},         /* set foreground color (ANSI) */
    {(int)KS_CSB, IF_EB("\033[102;%dm", ESC_STR "[102;%dm")},     /* set screen background color */
    {(int)KS_CSF, IF_EB("\033[101;%dm", ESC_STR "[101;%dm")},     /* set screen foreground color */
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  IF_EB("\033[%i%p1%d;%p2%dH",
                                      ESC_STR "[%i%p1%d;%p2%dH")},
#  else
    {(int)KS_CM,  IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
#  endif
#  ifdef TERMINFO
    {(int)KS_CRI, IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
#  else
    {(int)KS_CRI, IF_EB("\033[%dC", ESC_STR "[%dC")},
#  endif
    {K_UP,        IF_EB("\033[A", ESC_STR "[A")},
    {K_DOWN,            IF_EB("\033[B", ESC_STR "[B")},
    {K_RIGHT,           IF_EB("\033[C", ESC_STR "[C")},
    {K_LEFT,            IF_EB("\033[D", ESC_STR "[D")},
    {K_F1,        IF_EB("\033[11~", ESC_STR "[11~")},
    {K_F2,        IF_EB("\033[12~", ESC_STR "[12~")},
    {K_F3,        IF_EB("\033[13~", ESC_STR "[13~")},
    {K_F4,        IF_EB("\033[14~", ESC_STR "[14~")},
    {K_F5,        IF_EB("\033[15~", ESC_STR "[15~")},
    {K_F6,        IF_EB("\033[17~", ESC_STR "[17~")},
    {K_F7,        IF_EB("\033[18~", ESC_STR "[18~")},
    {K_F8,        IF_EB("\033[19~", ESC_STR "[19~")},
    {K_F9,        IF_EB("\033[20~", ESC_STR "[20~")},
    {K_F10,       IF_EB("\033[21~", ESC_STR "[21~")},
    {K_F11,       IF_EB("\033[23~", ESC_STR "[23~")},
    {K_F12,       IF_EB("\033[24~", ESC_STR "[24~")},
    {K_F13,       IF_EB("\033[25~", ESC_STR "[25~")},
    {K_F14,       IF_EB("\033[26~", ESC_STR "[26~")},
    {K_F15,       IF_EB("\033[28~", ESC_STR "[28~")}, /* Help */
    {K_F16,       IF_EB("\033[29~", ESC_STR "[29~")}, /* Select */
    {K_F17,       IF_EB("\033[31~", ESC_STR "[31~")},
    {K_F18,       IF_EB("\033[32~", ESC_STR "[32~")},
    {K_F19,       IF_EB("\033[33~", ESC_STR "[33~")},
    {K_F20,       IF_EB("\033[34~", ESC_STR "[34~")},
    {K_INS,       IF_EB("\033[2~", ESC_STR "[2~")},
    {K_DEL,       IF_EB("\033[3~", ESC_STR "[3~")},
    {K_HOME,            IF_EB("\033[1~", ESC_STR "[1~")},
    {K_END,       IF_EB("\033[4~", ESC_STR "[4~")},
    {K_PAGEUP,          IF_EB("\033[5~", ESC_STR "[5~")},
    {K_PAGEDOWN,  IF_EB("\033[6~", ESC_STR "[6~")},
    {K_KPLUS,           IF_EB("\033Ok", ESC_STR "Ok")},     /* keypad plus */
    {K_KMINUS,          IF_EB("\033Om", ESC_STR "Om")},     /* keypad minus */
    {K_KDIVIDE,         IF_EB("\033Oo", ESC_STR "Oo")},     /* keypad / */
    {K_KMULTIPLY, IF_EB("\033Oj", ESC_STR "Oj")},     /* keypad * */
    {K_KENTER,          IF_EB("\033OM", ESC_STR "OM")},     /* keypad Enter */
    {K_BS,        "\x7f"},    /* for some reason 0177 doesn't work */
# endif

# if defined(ALL_BUILTIN_TCAPS) || defined(__MINT__)
/*
 * Ordinary vt52
 */
    {(int)KS_NAME,      "vt52"},
    {(int)KS_CE,  IF_EB("\033K", ESC_STR "K")},
    {(int)KS_CD,  IF_EB("\033J", ESC_STR "J")},
    {(int)KS_CM,  IF_EB("\033Y%+ %+ ", ESC_STR "Y%+ %+ ")},
    {(int)KS_LE,  "\b"},
#  ifdef __MINT__
    {(int)KS_AL,  IF_EB("\033L", ESC_STR "L")},
    {(int)KS_DL,  IF_EB("\033M", ESC_STR "M")},
    {(int)KS_CL,  IF_EB("\033E", ESC_STR "E")},
    {(int)KS_SR,  IF_EB("\033I", ESC_STR "I")},
    {(int)KS_VE,  IF_EB("\033e", ESC_STR "e")},
    {(int)KS_VI,  IF_EB("\033f", ESC_STR "f")},
    {(int)KS_SO,  IF_EB("\033p", ESC_STR "p")},
    {(int)KS_SE,  IF_EB("\033q", ESC_STR "q")},
    {K_UP,        IF_EB("\033A", ESC_STR "A")},
    {K_DOWN,            IF_EB("\033B", ESC_STR "B")},
    {K_LEFT,            IF_EB("\033D", ESC_STR "D")},
    {K_RIGHT,           IF_EB("\033C", ESC_STR "C")},
    {K_S_UP,            IF_EB("\033a", ESC_STR "a")},
    {K_S_DOWN,          IF_EB("\033b", ESC_STR "b")},
    {K_S_LEFT,          IF_EB("\033d", ESC_STR "d")},
    {K_S_RIGHT,         IF_EB("\033c", ESC_STR "c")},
    {K_F1,        IF_EB("\033P", ESC_STR "P")},
    {K_F2,        IF_EB("\033Q", ESC_STR "Q")},
    {K_F3,        IF_EB("\033R", ESC_STR "R")},
    {K_F4,        IF_EB("\033S", ESC_STR "S")},
    {K_F5,        IF_EB("\033T", ESC_STR "T")},
    {K_F6,        IF_EB("\033U", ESC_STR "U")},
    {K_F7,        IF_EB("\033V", ESC_STR "V")},
    {K_F8,        IF_EB("\033W", ESC_STR "W")},
    {K_F9,        IF_EB("\033X", ESC_STR "X")},
    {K_F10,       IF_EB("\033Y", ESC_STR "Y")},
    {K_S_F1,            IF_EB("\033p", ESC_STR "p")},
    {K_S_F2,            IF_EB("\033q", ESC_STR "q")},
    {K_S_F3,            IF_EB("\033r", ESC_STR "r")},
    {K_S_F4,            IF_EB("\033s", ESC_STR "s")},
    {K_S_F5,            IF_EB("\033t", ESC_STR "t")},
    {K_S_F6,            IF_EB("\033u", ESC_STR "u")},
    {K_S_F7,            IF_EB("\033v", ESC_STR "v")},
    {K_S_F8,            IF_EB("\033w", ESC_STR "w")},
    {K_S_F9,            IF_EB("\033x", ESC_STR "x")},
    {K_S_F10,           IF_EB("\033y", ESC_STR "y")},
    {K_INS,       IF_EB("\033I", ESC_STR "I")},
    {K_HOME,            IF_EB("\033E", ESC_STR "E")},
    {K_PAGEDOWN,  IF_EB("\033b", ESC_STR "b")},
    {K_PAGEUP,          IF_EB("\033a", ESC_STR "a")},
#  else
    {(int)KS_AL,  IF_EB("\033T", ESC_STR "T")},
    {(int)KS_DL,  IF_EB("\033U", ESC_STR "U")},
    {(int)KS_CL,  IF_EB("\033H\033J", ESC_STR "H" ESC_STR_nc "J")},
    {(int)KS_ME,  IF_EB("\033SO", ESC_STR "SO")},
    {(int)KS_MR,  IF_EB("\033S2", ESC_STR "S2")},
    {(int)KS_MS,  "y"},
#  endif
# endif

# if defined(UNIX) || defined(ALL_BUILTIN_TCAPS) || defined(SOME_BUILTIN_TCAPS) || defined(__EMX__)
    {(int)KS_NAME,      "xterm"},
    {(int)KS_CE,  IF_EB("\033[K", ESC_STR "[K")},
    {(int)KS_AL,  IF_EB("\033[L", ESC_STR "[L")},
#  ifdef TERMINFO
    {(int)KS_CAL, IF_EB("\033[%p1%dL", ESC_STR "[%p1%dL")},
#  else
    {(int)KS_CAL, IF_EB("\033[%dL", ESC_STR "[%dL")},
#  endif
    {(int)KS_DL,  IF_EB("\033[M", ESC_STR "[M")},
#  ifdef TERMINFO
    {(int)KS_CDL, IF_EB("\033[%p1%dM", ESC_STR "[%p1%dM")},
#  else
    {(int)KS_CDL, IF_EB("\033[%dM", ESC_STR "[%dM")},
#  endif
#  ifdef TERMINFO
    {(int)KS_CS,  IF_EB("\033[%i%p1%d;%p2%dr",
                                      ESC_STR "[%i%p1%d;%p2%dr")},
#  else
    {(int)KS_CS,  IF_EB("\033[%i%d;%dr", ESC_STR "[%i%d;%dr")},
#  endif
    {(int)KS_CL,  IF_EB("\033[H\033[2J", ESC_STR "[H" ESC_STR_nc "[2J")},
    {(int)KS_CD,  IF_EB("\033[J", ESC_STR "[J")},
    {(int)KS_ME,  IF_EB("\033[m", ESC_STR "[m")},
    {(int)KS_MR,  IF_EB("\033[7m", ESC_STR "[7m")},
    {(int)KS_MD,  IF_EB("\033[1m", ESC_STR "[1m")},
    {(int)KS_UE,  IF_EB("\033[m", ESC_STR "[m")},
    {(int)KS_US,  IF_EB("\033[4m", ESC_STR "[4m")},
    {(int)KS_MS,  "y"},
    {(int)KS_UT,  "y"},
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  IF_EB("\033[%i%p1%d;%p2%dH",
                                      ESC_STR "[%i%p1%d;%p2%dH")},
#  else
    {(int)KS_CM,  IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
#  endif
    {(int)KS_SR,  IF_EB("\033M", ESC_STR "M")},
#  ifdef TERMINFO
    {(int)KS_CRI, IF_EB("\033[%p1%dC", ESC_STR "[%p1%dC")},
#  else
    {(int)KS_CRI, IF_EB("\033[%dC", ESC_STR "[%dC")},
#  endif
    {(int)KS_KS,  IF_EB("\033[?1h\033=", ESC_STR "[?1h" ESC_STR_nc "=")},
    {(int)KS_KE,  IF_EB("\033[?1l\033>", ESC_STR "[?1l" ESC_STR_nc ">")},
#  ifdef FEAT_XTERM_SAVE
    {(int)KS_TI,  IF_EB("\0337\033[?47h", ESC_STR "7" ESC_STR_nc "[?47h")},
    {(int)KS_TE,  IF_EB("\033[2J\033[?47l\0338",
                          ESC_STR "[2J" ESC_STR_nc "[?47l" ESC_STR_nc "8")},
#  endif
    {(int)KS_CIS, IF_EB("\033]1;", ESC_STR "]1;")},
    {(int)KS_CIE, "\007"},
    {(int)KS_TS,  IF_EB("\033]2;", ESC_STR "]2;")},
    {(int)KS_FS,  "\007"},
#  ifdef TERMINFO
    {(int)KS_CWS, IF_EB("\033[8;%p1%d;%p2%dt",
                                      ESC_STR "[8;%p1%d;%p2%dt")},
    {(int)KS_CWP, IF_EB("\033[3;%p1%d;%p2%dt",
                                      ESC_STR "[3;%p1%d;%p2%dt")},
#  else
    {(int)KS_CWS, IF_EB("\033[8;%d;%dt", ESC_STR "[8;%d;%dt")},
    {(int)KS_CWP, IF_EB("\033[3;%d;%dt", ESC_STR "[3;%d;%dt")},
#  endif
    {(int)KS_CRV, IF_EB("\033[>c", ESC_STR "[>c")},

    {K_UP,        IF_EB("\033O*A", ESC_STR "O*A")},
    {K_DOWN,            IF_EB("\033O*B", ESC_STR "O*B")},
    {K_RIGHT,           IF_EB("\033O*C", ESC_STR "O*C")},
    {K_LEFT,            IF_EB("\033O*D", ESC_STR "O*D")},
    /* An extra set of cursor keys for vt100 mode */
    {K_XUP,       IF_EB("\033[1;*A", ESC_STR "[1;*A")},
    {K_XDOWN,           IF_EB("\033[1;*B", ESC_STR "[1;*B")},
    {K_XRIGHT,          IF_EB("\033[1;*C", ESC_STR "[1;*C")},
    {K_XLEFT,           IF_EB("\033[1;*D", ESC_STR "[1;*D")},
    /* An extra set of function keys for vt100 mode */
    {K_XF1,       IF_EB("\033O*P", ESC_STR "O*P")},
    {K_XF2,       IF_EB("\033O*Q", ESC_STR "O*Q")},
    {K_XF3,       IF_EB("\033O*R", ESC_STR "O*R")},
    {K_XF4,       IF_EB("\033O*S", ESC_STR "O*S")},
    {K_F1,        IF_EB("\033[11;*~", ESC_STR "[11;*~")},
    {K_F2,        IF_EB("\033[12;*~", ESC_STR "[12;*~")},
    {K_F3,        IF_EB("\033[13;*~", ESC_STR "[13;*~")},
    {K_F4,        IF_EB("\033[14;*~", ESC_STR "[14;*~")},
    {K_F5,        IF_EB("\033[15;*~", ESC_STR "[15;*~")},
    {K_F6,        IF_EB("\033[17;*~", ESC_STR "[17;*~")},
    {K_F7,        IF_EB("\033[18;*~", ESC_STR "[18;*~")},
    {K_F8,        IF_EB("\033[19;*~", ESC_STR "[19;*~")},
    {K_F9,        IF_EB("\033[20;*~", ESC_STR "[20;*~")},
    {K_F10,       IF_EB("\033[21;*~", ESC_STR "[21;*~")},
    {K_F11,       IF_EB("\033[23;*~", ESC_STR "[23;*~")},
    {K_F12,       IF_EB("\033[24;*~", ESC_STR "[24;*~")},
    {K_S_TAB,           IF_EB("\033[Z", ESC_STR "[Z")},
    {K_HELP,            IF_EB("\033[28;*~", ESC_STR "[28;*~")},
    {K_UNDO,            IF_EB("\033[26;*~", ESC_STR "[26;*~")},
    {K_INS,       IF_EB("\033[2;*~", ESC_STR "[2;*~")},
    {K_HOME,            IF_EB("\033[1;*H", ESC_STR "[1;*H")},
    /* {K_S_HOME,       IF_EB("\033O2H", ESC_STR "O2H")}, */
    /* {K_C_HOME,       IF_EB("\033O5H", ESC_STR "O5H")}, */
    {K_KHOME,           IF_EB("\033[1;*~", ESC_STR "[1;*~")},
    {K_XHOME,           IF_EB("\033O*H", ESC_STR "O*H")},   /* other Home */
    {K_ZHOME,           IF_EB("\033[7;*~", ESC_STR "[7;*~")},     /* other Home */
    {K_END,       IF_EB("\033[1;*F", ESC_STR "[1;*F")},
    /* {K_S_END,        IF_EB("\033O2F", ESC_STR "O2F")}, */
    /* {K_C_END,        IF_EB("\033O5F", ESC_STR "O5F")}, */
    {K_KEND,            IF_EB("\033[4;*~", ESC_STR "[4;*~")},
    {K_XEND,            IF_EB("\033O*F", ESC_STR "O*F")},   /* other End */
    {K_ZEND,            IF_EB("\033[8;*~", ESC_STR "[8;*~")},
    {K_PAGEUP,          IF_EB("\033[5;*~", ESC_STR "[5;*~")},
    {K_PAGEDOWN,  IF_EB("\033[6;*~", ESC_STR "[6;*~")},
    {K_KPLUS,           IF_EB("\033O*k", ESC_STR "O*k")},   /* keypad plus */
    {K_KMINUS,          IF_EB("\033O*m", ESC_STR "O*m")},   /* keypad minus */
    {K_KDIVIDE,         IF_EB("\033O*o", ESC_STR "O*o")},   /* keypad / */
    {K_KMULTIPLY, IF_EB("\033O*j", ESC_STR "O*j")},   /* keypad * */
    {K_KENTER,          IF_EB("\033O*M", ESC_STR "O*M")},   /* keypad Enter */
    {K_KPOINT,          IF_EB("\033O*n", ESC_STR "O*n")},   /* keypad . */
    {K_KDEL,            IF_EB("\033[3;*~", ESC_STR "[3;*~")},     /* keypad Del */

    {BT_EXTRA_KEYS,   ""},
    {TERMCAP2KEY('k', '0'), IF_EB("\033[10;*~", ESC_STR "[10;*~")}, /* F0 */
    {TERMCAP2KEY('F', '3'), IF_EB("\033[25;*~", ESC_STR "[25;*~")}, /* F13 */
    /* F14 and F15 are missing, because they send the same codes as the undo
     * and help key, although they don't work on all keyboards. */
    {TERMCAP2KEY('F', '6'), IF_EB("\033[29;*~", ESC_STR "[29;*~")}, /* F16 */
    {TERMCAP2KEY('F', '7'), IF_EB("\033[31;*~", ESC_STR "[31;*~")}, /* F17 */
    {TERMCAP2KEY('F', '8'), IF_EB("\033[32;*~", ESC_STR "[32;*~")}, /* F18 */
    {TERMCAP2KEY('F', '9'), IF_EB("\033[33;*~", ESC_STR "[33;*~")}, /* F19 */
    {TERMCAP2KEY('F', 'A'), IF_EB("\033[34;*~", ESC_STR "[34;*~")}, /* F20 */

    {TERMCAP2KEY('F', 'B'), IF_EB("\033[42;*~", ESC_STR "[42;*~")}, /* F21 */
    {TERMCAP2KEY('F', 'C'), IF_EB("\033[43;*~", ESC_STR "[43;*~")}, /* F22 */
    {TERMCAP2KEY('F', 'D'), IF_EB("\033[44;*~", ESC_STR "[44;*~")}, /* F23 */
    {TERMCAP2KEY('F', 'E'), IF_EB("\033[45;*~", ESC_STR "[45;*~")}, /* F24 */
    {TERMCAP2KEY('F', 'F'), IF_EB("\033[46;*~", ESC_STR "[46;*~")}, /* F25 */
    {TERMCAP2KEY('F', 'G'), IF_EB("\033[47;*~", ESC_STR "[47;*~")}, /* F26 */
    {TERMCAP2KEY('F', 'H'), IF_EB("\033[48;*~", ESC_STR "[48;*~")}, /* F27 */
    {TERMCAP2KEY('F', 'I'), IF_EB("\033[49;*~", ESC_STR "[49;*~")}, /* F28 */
    {TERMCAP2KEY('F', 'J'), IF_EB("\033[50;*~", ESC_STR "[50;*~")}, /* F29 */
    {TERMCAP2KEY('F', 'K'), IF_EB("\033[51;*~", ESC_STR "[51;*~")}, /* F30 */

    {TERMCAP2KEY('F', 'L'), IF_EB("\033[52;*~", ESC_STR "[52;*~")}, /* F31 */
    {TERMCAP2KEY('F', 'M'), IF_EB("\033[53;*~", ESC_STR "[53;*~")}, /* F32 */
    {TERMCAP2KEY('F', 'N'), IF_EB("\033[54;*~", ESC_STR "[54;*~")}, /* F33 */
    {TERMCAP2KEY('F', 'O'), IF_EB("\033[55;*~", ESC_STR "[55;*~")}, /* F34 */
    {TERMCAP2KEY('F', 'P'), IF_EB("\033[56;*~", ESC_STR "[56;*~")}, /* F35 */
    {TERMCAP2KEY('F', 'Q'), IF_EB("\033[57;*~", ESC_STR "[57;*~")}, /* F36 */
    {TERMCAP2KEY('F', 'R'), IF_EB("\033[58;*~", ESC_STR "[58;*~")}, /* F37 */
# endif

# if defined(UNIX) || defined(ALL_BUILTIN_TCAPS)
/*
 * iris-ansi for Silicon Graphics machines.
 */
    {(int)KS_NAME,      "iris-ansi"},
    {(int)KS_CE,  "\033[K"},
    {(int)KS_CD,  "\033[J"},
    {(int)KS_AL,  "\033[L"},
#  ifdef TERMINFO
    {(int)KS_CAL, "\033[%p1%dL"},
#  else
    {(int)KS_CAL, "\033[%dL"},
#  endif
    {(int)KS_DL,  "\033[M"},
#  ifdef TERMINFO
    {(int)KS_CDL, "\033[%p1%dM"},
#  else
    {(int)KS_CDL, "\033[%dM"},
#  endif
#if 0 /* The scroll region is not working as Vim expects. */
#  ifdef TERMINFO
    {(int)KS_CS,  "\033[%i%p1%d;%p2%dr"},
#  else
    {(int)KS_CS,  "\033[%i%d;%dr"},
#  endif
#endif
    {(int)KS_CL,  "\033[H\033[2J"},
    {(int)KS_VE,  "\033[9/y\033[12/y"},   /* These aren't documented */
    {(int)KS_VS,  "\033[10/y\033[=1h\033[=2l"}, /* These aren't documented */
    {(int)KS_TI,  "\033[=6h"},
    {(int)KS_TE,  "\033[=6l"},
    {(int)KS_SE,  "\033[21;27m"},
    {(int)KS_SO,  "\033[1;7m"},
    {(int)KS_ME,  "\033[m"},
    {(int)KS_MR,  "\033[7m"},
    {(int)KS_MD,  "\033[1m"},
    {(int)KS_CCO, "8"},             /* allow 8 colors */
    {(int)KS_CZH, "\033[3m"},       /* italic mode on */
    {(int)KS_CZR, "\033[23m"},            /* italic mode off */
    {(int)KS_US,  "\033[4m"},       /* underline on */
    {(int)KS_UE,  "\033[24m"},            /* underline off */
#  ifdef TERMINFO
    {(int)KS_CAB, "\033[4%p1%dm"},    /* set background color (ANSI) */
    {(int)KS_CAF, "\033[3%p1%dm"},    /* set foreground color (ANSI) */
    {(int)KS_CSB, "\033[102;%p1%dm"}, /* set screen background color */
    {(int)KS_CSF, "\033[101;%p1%dm"}, /* set screen foreground color */
#  else
    {(int)KS_CAB, "\033[4%dm"},         /* set background color (ANSI) */
    {(int)KS_CAF, "\033[3%dm"},         /* set foreground color (ANSI) */
    {(int)KS_CSB, "\033[102;%dm"},    /* set screen background color */
    {(int)KS_CSF, "\033[101;%dm"},    /* set screen foreground color */
#  endif
    {(int)KS_MS,  "y"},       /* guessed */
    {(int)KS_UT,  "y"},       /* guessed */
    {(int)KS_LE,  "\b"},
#  ifdef TERMINFO
    {(int)KS_CM,  "\033[%i%p1%d;%p2%dH"},
#  else
    {(int)KS_CM,  "\033[%i%d;%dH"},
#  endif
    {(int)KS_SR,  "\033M"},
#  ifdef TERMINFO
    {(int)KS_CRI, "\033[%p1%dC"},
#  else
    {(int)KS_CRI, "\033[%dC"},
#  endif
    {(int)KS_CIS, "\033P3.y"},
    {(int)KS_CIE, "\234"},    /* ST "String Terminator" */
    {(int)KS_TS,  "\033P1.y"},
    {(int)KS_FS,  "\234"},    /* ST "String Terminator" */
#  ifdef TERMINFO
    {(int)KS_CWS, "\033[203;%p1%d;%p2%d/y"},
    {(int)KS_CWP, "\033[205;%p1%d;%p2%d/y"},
#  else
    {(int)KS_CWS, "\033[203;%d;%d/y"},
    {(int)KS_CWP, "\033[205;%d;%d/y"},
#  endif
    {K_UP,        "\033[A"},
    {K_DOWN,            "\033[B"},
    {K_LEFT,            "\033[D"},
    {K_RIGHT,           "\033[C"},
    {K_S_UP,            "\033[161q"},
    {K_S_DOWN,          "\033[164q"},
    {K_S_LEFT,          "\033[158q"},
    {K_S_RIGHT,         "\033[167q"},
    {K_F1,        "\033[001q"},
    {K_F2,        "\033[002q"},
    {K_F3,        "\033[003q"},
    {K_F4,        "\033[004q"},
    {K_F5,        "\033[005q"},
    {K_F6,        "\033[006q"},
    {K_F7,        "\033[007q"},
    {K_F8,        "\033[008q"},
    {K_F9,        "\033[009q"},
    {K_F10,       "\033[010q"},
    {K_F11,       "\033[011q"},
    {K_F12,       "\033[012q"},
    {K_S_F1,            "\033[013q"},
    {K_S_F2,            "\033[014q"},
    {K_S_F3,            "\033[015q"},
    {K_S_F4,            "\033[016q"},
    {K_S_F5,            "\033[017q"},
    {K_S_F6,            "\033[018q"},
    {K_S_F7,            "\033[019q"},
    {K_S_F8,            "\033[020q"},
    {K_S_F9,            "\033[021q"},
    {K_S_F10,           "\033[022q"},
    {K_S_F11,           "\033[023q"},
    {K_S_F12,           "\033[024q"},
    {K_INS,       "\033[139q"},
    {K_HOME,            "\033[H"},
    {K_END,       "\033[146q"},
    {K_PAGEUP,          "\033[150q"},
    {K_PAGEDOWN,  "\033[154q"},
# endif

# if defined(DEBUG) || defined(ALL_BUILTIN_TCAPS)
/*
 * for debugging
 */
    {(int)KS_NAME,      "debug"},
    {(int)KS_CE,  "[CE]"},
    {(int)KS_CD,  "[CD]"},
    {(int)KS_AL,  "[AL]"},
#  ifdef TERMINFO
    {(int)KS_CAL, "[CAL%p1%d]"},
#  else
    {(int)KS_CAL, "[CAL%d]"},
#  endif
    {(int)KS_DL,  "[DL]"},
#  ifdef TERMINFO
    {(int)KS_CDL, "[CDL%p1%d]"},
#  else
    {(int)KS_CDL, "[CDL%d]"},
#  endif
#  ifdef TERMINFO
    {(int)KS_CS,  "[%p1%dCS%p2%d]"},
#  else
    {(int)KS_CS,  "[%dCS%d]"},
#  endif
#  ifdef FEAT_VERTSPLIT
#   ifdef TERMINFO
    {(int)KS_CSV, "[%p1%dCSV%p2%d]"},
#   else
    {(int)KS_CSV, "[%dCSV%d]"},
#   endif
#  endif
#  ifdef TERMINFO
    {(int)KS_CAB, "[CAB%p1%d]"},
    {(int)KS_CAF, "[CAF%p1%d]"},
    {(int)KS_CSB, "[CSB%p1%d]"},
    {(int)KS_CSF, "[CSF%p1%d]"},
#  else
    {(int)KS_CAB, "[CAB%d]"},
    {(int)KS_CAF, "[CAF%d]"},
    {(int)KS_CSB, "[CSB%d]"},
    {(int)KS_CSF, "[CSF%d]"},
#  endif
    {(int)KS_OP,  "[OP]"},
    {(int)KS_LE,  "[LE]"},
    {(int)KS_CL,  "[CL]"},
    {(int)KS_VI,  "[VI]"},
    {(int)KS_VE,  "[VE]"},
    {(int)KS_VS,  "[VS]"},
    {(int)KS_ME,  "[ME]"},
    {(int)KS_MR,  "[MR]"},
    {(int)KS_MB,  "[MB]"},
    {(int)KS_MD,  "[MD]"},
    {(int)KS_SE,  "[SE]"},
    {(int)KS_SO,  "[SO]"},
    {(int)KS_UE,  "[UE]"},
    {(int)KS_US,  "[US]"},
    {(int)KS_UCE, "[UCE]"},
    {(int)KS_UCS, "[UCS]"},
    {(int)KS_MS,  "[MS]"},
    {(int)KS_UT,  "[UT]"},
#  ifdef TERMINFO
    {(int)KS_CM,  "[%p1%dCM%p2%d]"},
#  else
    {(int)KS_CM,  "[%dCM%d]"},
#  endif
    {(int)KS_SR,  "[SR]"},
#  ifdef TERMINFO
    {(int)KS_CRI, "[CRI%p1%d]"},
#  else
    {(int)KS_CRI, "[CRI%d]"},
#  endif
    {(int)KS_VB,  "[VB]"},
    {(int)KS_KS,  "[KS]"},
    {(int)KS_KE,  "[KE]"},
    {(int)KS_TI,  "[TI]"},
    {(int)KS_TE,  "[TE]"},
    {(int)KS_CIS, "[CIS]"},
    {(int)KS_CIE, "[CIE]"},
    {(int)KS_TS,  "[TS]"},
    {(int)KS_FS,  "[FS]"},
#  ifdef TERMINFO
    {(int)KS_CWS, "[%p1%dCWS%p2%d]"},
    {(int)KS_CWP, "[%p1%dCWP%p2%d]"},
#  else
    {(int)KS_CWS, "[%dCWS%d]"},
    {(int)KS_CWP, "[%dCWP%d]"},
#  endif
    {(int)KS_CRV, "[CRV]"},
    {K_UP,        "[KU]"},
    {K_DOWN,            "[KD]"},
    {K_LEFT,            "[KL]"},
    {K_RIGHT,           "[KR]"},
    {K_XUP,       "[xKU]"},
    {K_XDOWN,           "[xKD]"},
    {K_XLEFT,           "[xKL]"},
    {K_XRIGHT,          "[xKR]"},
    {K_S_UP,            "[S-KU]"},
    {K_S_DOWN,          "[S-KD]"},
    {K_S_LEFT,          "[S-KL]"},
    {K_C_LEFT,          "[C-KL]"},
    {K_S_RIGHT,         "[S-KR]"},
    {K_C_RIGHT,         "[C-KR]"},
    {K_F1,        "[F1]"},
    {K_XF1,       "[xF1]"},
    {K_F2,        "[F2]"},
    {K_XF2,       "[xF2]"},
    {K_F3,        "[F3]"},
    {K_XF3,       "[xF3]"},
    {K_F4,        "[F4]"},
    {K_XF4,       "[xF4]"},
    {K_F5,        "[F5]"},
    {K_F6,        "[F6]"},
    {K_F7,        "[F7]"},
    {K_F8,        "[F8]"},
    {K_F9,        "[F9]"},
    {K_F10,       "[F10]"},
    {K_F11,       "[F11]"},
    {K_F12,       "[F12]"},
    {K_S_F1,            "[S-F1]"},
    {K_S_XF1,           "[S-xF1]"},
    {K_S_F2,            "[S-F2]"},
    {K_S_XF2,           "[S-xF2]"},
    {K_S_F3,            "[S-F3]"},
    {K_S_XF3,           "[S-xF3]"},
    {K_S_F4,            "[S-F4]"},
    {K_S_XF4,           "[S-xF4]"},
    {K_S_F5,            "[S-F5]"},
    {K_S_F6,            "[S-F6]"},
    {K_S_F7,            "[S-F7]"},
    {K_S_F8,            "[S-F8]"},
    {K_S_F9,            "[S-F9]"},
    {K_S_F10,           "[S-F10]"},
    {K_S_F11,           "[S-F11]"},
    {K_S_F12,           "[S-F12]"},
    {K_HELP,            "[HELP]"},
    {K_UNDO,            "[UNDO]"},
    {K_BS,        "[BS]"},
    {K_INS,       "[INS]"},
    {K_KINS,            "[KINS]"},
    {K_DEL,       "[DEL]"},
    {K_KDEL,            "[KDEL]"},
    {K_HOME,            "[HOME]"},
    {K_S_HOME,          "[C-HOME]"},
    {K_C_HOME,          "[C-HOME]"},
    {K_KHOME,           "[KHOME]"},
    {K_XHOME,           "[XHOME]"},
    {K_ZHOME,           "[ZHOME]"},
    {K_END,       "[END]"},
    {K_S_END,           "[C-END]"},
    {K_C_END,           "[C-END]"},
    {K_KEND,            "[KEND]"},
    {K_XEND,            "[XEND]"},
    {K_ZEND,            "[ZEND]"},
    {K_PAGEUP,          "[PAGEUP]"},
    {K_PAGEDOWN,  "[PAGEDOWN]"},
    {K_KPAGEUP,         "[KPAGEUP]"},
    {K_KPAGEDOWN, "[KPAGEDOWN]"},
    {K_MOUSE,           "[MOUSE]"},
    {K_KPLUS,           "[KPLUS]"},
    {K_KMINUS,          "[KMINUS]"},
    {K_KDIVIDE,         "[KDIVIDE]"},
    {K_KMULTIPLY, "[KMULTIPLY]"},
    {K_KENTER,          "[KENTER]"},
    {K_KPOINT,          "[KPOINT]"},
    {K_K0,        "[K0]"},
    {K_K1,        "[K1]"},
    {K_K2,        "[K2]"},
    {K_K3,        "[K3]"},
    {K_K4,        "[K4]"},
    {K_K5,        "[K5]"},
    {K_K6,        "[K6]"},
    {K_K7,        "[K7]"},
    {K_K8,        "[K8]"},
    {K_K9,        "[K9]"},
# endif

#endif /* NO_BUILTIN_TCAPS */

/*
 * The most minimal terminal: only clear screen and cursor positioning
 * Always included.
 */
    {(int)KS_NAME,      "dumb"},
    {(int)KS_CL,  "\014"},
#ifdef TERMINFO
    {(int)KS_CM,  IF_EB("\033[%i%p1%d;%p2%dH",
                                      ESC_STR "[%i%p1%d;%p2%dH")},
#else
    {(int)KS_CM,  IF_EB("\033[%i%d;%dH", ESC_STR "[%i%d;%dH")},
#endif

/*
 * end marker
 */
    {(int)KS_NAME,      NULL}

};    /* end of builtin_termcaps */

/*
 * DEFAULT_TERM is used, when no terminal is specified with -T option or $TERM.
 */
#ifdef RISCOS
# define DEFAULT_TERM   (char_u *)"riscos"
#endif

#ifdef AMIGA
# define DEFAULT_TERM   (char_u *)"amiga"
#endif

#ifdef MSWIN
# define DEFAULT_TERM   (char_u *)"win32"
#endif

#ifdef MSDOS
# define DEFAULT_TERM   (char_u *)"pcterm"
#endif

#if defined(UNIX) && !defined(__MINT__)
# define DEFAULT_TERM   (char_u *)"ansi"
#endif

#ifdef __MINT__
# define DEFAULT_TERM   (char_u *)"vt52"
#endif

#ifdef __EMX__
# define DEFAULT_TERM   (char_u *)"os2ansi"
#endif

#ifdef VMS
# define DEFAULT_TERM   (char_u *)"vt320"
#endif

#ifdef __BEOS__
# undef DEFAULT_TERM
# define DEFAULT_TERM   (char_u *)"beos-ansi"
#endif

#ifndef DEFAULT_TERM
# define DEFAULT_TERM   (char_u *)"dumb"
#endif

/*
 * Term_strings contains currently used terminal output strings.
 * It is initialized with the default values by parse_builtin_tcap().
 * The values can be changed by setting the option with the same name.
 */
char_u *(term_strings[(int)KS_LAST + 1]);

static int  need_gather = FALSE;        /* need to fill termleader[] */
static char_u     termleader[256 + 1];        /* for check_termcode() */
#ifdef FEAT_TERMRESPONSE
static int  check_for_codes = FALSE;    /* check for key code response */
#endif

    static struct builtin_term *
find_builtin_term(term)
    char_u  *term;
{
    struct builtin_term *p;

    p = builtin_termcaps;
    while (p->bt_string != NULL)
    {
      if (p->bt_entry == (int)KS_NAME)
      {
#ifdef UNIX
          if (STRCMP(p->bt_string, "iris-ansi") == 0 && vim_is_iris(term))
            return p;
          else if (STRCMP(p->bt_string, "xterm") == 0 && vim_is_xterm(term))
            return p;
          else
#endif
#ifdef VMS
            if (STRCMP(p->bt_string, "vt320") == 0 && vim_is_vt300(term))
                return p;
            else
#endif
              if (STRCMP(term, p->bt_string) == 0)
                return p;
      }
      ++p;
    }
    return p;
}

/*
 * Parsing of the builtin termcap entries.
 * Caller should check if 'name' is a valid builtin term.
 * The terminal's name is not set, as this is already done in termcapinit().
 */
    static void
parse_builtin_tcap(term)
    char_u  *term;
{
    struct builtin_term     *p;
    char_u            name[2];
    int                     term_8bit;

    p = find_builtin_term(term);
    term_8bit = term_is_8bit(term);

    /* Do not parse if builtin term not found */
    if (p->bt_string == NULL)
      return;

    for (++p; p->bt_entry != (int)KS_NAME && p->bt_entry != BT_EXTRA_KEYS; ++p)
    {
      if ((int)p->bt_entry >= 0)    /* KS_xx entry */
      {
          /* Only set the value if it wasn't set yet. */
          if (term_strings[p->bt_entry] == NULL
                         || term_strings[p->bt_entry] == empty_option)
          {
            /* 8bit terminal: use CSI instead of <Esc>[ */
            if (term_8bit && term_7to8bit((char_u *)p->bt_string) != 0)
            {
                char_u  *s, *t;

                s = vim_strsave((char_u *)p->bt_string);
                if (s != NULL)
                {
                  for (t = s; *t; ++t)
                      if (term_7to8bit(t))
                      {
                        *t = term_7to8bit(t);
                        STRCPY(t + 1, t + 2);
                      }
                  term_strings[p->bt_entry] = s;
                  set_term_option_alloced(&term_strings[p->bt_entry]);
                }
            }
            else
                term_strings[p->bt_entry] = (char_u *)p->bt_string;
          }
      }
      else
      {
          name[0] = KEY2TERMCAP0((int)p->bt_entry);
          name[1] = KEY2TERMCAP1((int)p->bt_entry);
          if (find_termcode(name) == NULL)
            add_termcode(name, (char_u *)p->bt_string, term_8bit);
      }
    }
}
#if defined(HAVE_TGETENT) || defined(FEAT_TERMRESPONSE)
static void set_color_count __ARGS((int nr));

/*
 * Set number of colors.
 * Store it as a number in t_colors.
 * Store it as a string in T_CCO (using nr_colors[]).
 */
    static void
set_color_count(nr)
    int           nr;
{
    char_u  nr_colors[20];          /* string for number of colors */

    t_colors = nr;
    if (t_colors > 1)
      sprintf((char *)nr_colors, "%d", t_colors);
    else
      *nr_colors = NUL;
    set_string_option_direct((char_u *)"t_Co", -1, nr_colors, OPT_FREE, 0);
}
#endif

#ifdef HAVE_TGETENT
static char *(key_names[]) =
{
#ifdef FEAT_TERMRESPONSE
    /* Do this one first, it may cause a screen redraw. */
    "Co",
#endif
    "ku", "kd", "kr", "kl",
# ifdef ARCHIE
    "su", "sd",         /* Termcap code made up! */
# endif
    "#2", "#4", "%i", "*7",
    "k1", "k2", "k3", "k4", "k5", "k6",
    "k7", "k8", "k9", "k;", "F1", "F2",
    "%1", "&8", "kb", "kI", "kD", "kh",
    "@7", "kP", "kN", "K1", "K3", "K4", "K5", "kB",
    NULL
};
#endif

/*
 * Set terminal options for terminal "term".
 * Return OK if terminal 'term' was found in a termcap, FAIL otherwise.
 *
 * While doing this, until ttest(), some options may be NULL, be careful.
 */
    int
set_termname(term)
    char_u *term;
{
    struct builtin_term *termp;
#ifdef HAVE_TGETENT
    int           builtin_first = p_tbi;
    int           try;
    int           termcap_cleared = FALSE;
#endif
#if defined(UNIX) || defined(VMS)
    int           term_uses_xterm_mouse;
#endif
    int           width = 0, height = 0;
    char_u  *error_msg = NULL;
    char_u  *bs_p, *del_p;

    /* In silect mode (ex -s) we don't use the 'term' option. */
    if (silent_mode)
      return OK;

    detected_8bit = FALSE;          /* reset 8-bit detection */

    if (term_is_builtin(term))
    {
      term += 8;
#ifdef HAVE_TGETENT
      builtin_first = 1;
#endif
    }

/*
 * If HAVE_TGETENT is not defined, only the builtin termcap is used, otherwise:
 *   If builtin_first is TRUE:
 *     0. try builtin termcap
 *     1. try external termcap
 *     2. if both fail default to a builtin terminal
 *   If builtin_first is FALSE:
 *     1. try external termcap
 *     2. try builtin termcap, if both fail default to a builtin terminal
 */
#ifdef HAVE_TGETENT
    for (try = builtin_first ? 0 : 1; try < 3; ++try)
    {
      /*
       * Use external termcap
       */
      if (try == 1)
      {
          char_u      *p;
          static char_u   tstrbuf[TBUFSZ];
          int               i;
          char_u      tbuf[TBUFSZ];
          char_u      *tp;
          static struct {
                      enum SpecialKey dest; /* index in term_strings[] */
                      char *name;           /* termcap name for string */
                    } string_names[] =
                      { {KS_CE, "ce"}, {KS_AL, "al"}, {KS_CAL,"AL"},
                        {KS_DL, "dl"}, {KS_CDL,"DL"}, {KS_CS, "cs"},
                        {KS_CL, "cl"}, {KS_CD, "cd"},
                        {KS_VI, "vi"}, {KS_VE, "ve"}, {KS_MB, "mb"},
                        {KS_VS, "vs"}, {KS_ME, "me"}, {KS_MR, "mr"},
                        {KS_MD, "md"}, {KS_SE, "se"}, {KS_SO, "so"},
                        {KS_CZH,"ZH"}, {KS_CZR,"ZR"}, {KS_UE, "ue"},
                        {KS_US, "us"}, {KS_UCE, "Ce"}, {KS_UCS, "Cs"},
                        {KS_CM, "cm"}, {KS_SR, "sr"},
                        {KS_CRI,"RI"}, {KS_VB, "vb"}, {KS_KS, "ks"},
                        {KS_KE, "ke"}, {KS_TI, "ti"}, {KS_TE, "te"},
                        {KS_BC, "bc"}, {KS_CSB,"Sb"}, {KS_CSF,"Sf"},
                        {KS_CAB,"AB"}, {KS_CAF,"AF"}, {KS_LE, "le"},
                        {KS_ND, "nd"}, {KS_OP, "op"}, {KS_CRV, "RV"},
                        {KS_CIS, "IS"}, {KS_CIE, "IE"},
                        {KS_TS, "ts"}, {KS_FS, "fs"},
                        {KS_CWP, "WP"}, {KS_CWS, "WS"},
                        {KS_CSI, "SI"}, {KS_CEI, "EI"},
                        {(enum SpecialKey)0, NULL}
                      };

          /*
           * If the external termcap does not have a matching entry, try the
           * builtin ones.
           */
          if ((error_msg = tgetent_error(tbuf, term)) == NULL)
          {
            tp = tstrbuf;
            if (!termcap_cleared)
            {
                clear_termoptions();      /* clear old options */
                termcap_cleared = TRUE;
            }

          /* get output strings */
            for (i = 0; string_names[i].name != NULL; ++i)
            {
                if (term_str(string_names[i].dest) == NULL
                      || term_str(string_names[i].dest) == empty_option)
                  term_str(string_names[i].dest) =
                                 TGETSTR(string_names[i].name, &tp);
            }

            /* tgetflag() returns 1 if the flag is present, 0 if not and
             * possibly -1 if the flag doesn't exist. */
            if ((T_MS == NULL || T_MS == empty_option)
                                          && tgetflag("ms") > 0)
                T_MS = (char_u *)"y";
            if ((T_XS == NULL || T_XS == empty_option)
                                          && tgetflag("xs") > 0)
                T_XS = (char_u *)"y";
            if ((T_DB == NULL || T_DB == empty_option)
                                          && tgetflag("db") > 0)
                T_DB = (char_u *)"y";
            if ((T_DA == NULL || T_DA == empty_option)
                                          && tgetflag("da") > 0)
                T_DA = (char_u *)"y";
            if ((T_UT == NULL || T_UT == empty_option)
                                          && tgetflag("ut") > 0)
                T_UT = (char_u *)"y";


            /*
             * get key codes
             */
            for (i = 0; key_names[i] != NULL; ++i)
            {
                if (find_termcode((char_u *)key_names[i]) == NULL)
                {
                  p = TGETSTR(key_names[i], &tp);
                  /* if cursor-left == backspace, ignore it (televideo
                   * 925) */
                  if (p != NULL
                        && (*p != Ctrl_H
                            || key_names[i][0] != 'k'
                            || key_names[i][1] != 'l'))
                      add_termcode((char_u *)key_names[i], p, FALSE);
                }
            }

            if (height == 0)
                height = tgetnum("li");
            if (width == 0)
                width = tgetnum("co");

            /*
             * Get number of colors (if not done already).
             */
            if (term_str(KS_CCO) == NULL
                  || term_str(KS_CCO) == empty_option)
                set_color_count(tgetnum("Co"));

# ifndef hpux
            BC = (char *)TGETSTR("bc", &tp);
            UP = (char *)TGETSTR("up", &tp);
            p = TGETSTR("pc", &tp);
            if (p)
                PC = *p;
# endif /* hpux */
          }
      }
      else      /* try == 0 || try == 2 */
#endif /* HAVE_TGETENT */
      /*
       * Use builtin termcap
       */
      {
#ifdef HAVE_TGETENT
          /*
           * If builtin termcap was already used, there is no need to search
           * for the builtin termcap again, quit now.
           */
          if (try == 2 && builtin_first && termcap_cleared)
            break;
#endif
          /*
           * search for 'term' in builtin_termcaps[]
           */
          termp = find_builtin_term(term);
          if (termp->bt_string == NULL)   /* did not find it */
          {
#ifdef HAVE_TGETENT
            /*
             * If try == 0, first try the external termcap. If that is not
             * found we'll get back here with try == 2.
             * If termcap_cleared is set we used the external termcap,
             * don't complain about not finding the term in the builtin
             * termcap.
             */
            if (try == 0)                 /* try external one */
                continue;
            if (termcap_cleared)          /* found in external termcap */
                break;
#endif

            mch_errmsg("\r\n");
            if (error_msg != NULL)
            {
                mch_errmsg((char *)error_msg);
                mch_errmsg("\r\n");
            }
            mch_errmsg("'");
            mch_errmsg((char *)term);
            mch_errmsg(_("' not known. Available builtin terminals are:"));
            mch_errmsg("\r\n");
            for (termp = &(builtin_termcaps[0]); termp->bt_string != NULL;
                                                      ++termp)
            {
                if (termp->bt_entry == (int)KS_NAME)
                {
#ifdef HAVE_TGETENT
                  mch_errmsg("    builtin_");
#else
                  mch_errmsg("    ");
#endif
                  mch_errmsg(termp->bt_string);
                  mch_errmsg("\r\n");
                }
            }
            /* when user typed :set term=xxx, quit here */
            if (starting != NO_SCREEN)
            {
                screen_start();     /* don't know where cursor is now */
                wait_return(TRUE);
                return FAIL;
            }
            term = DEFAULT_TERM;
            mch_errmsg(_("defaulting to '"));
            mch_errmsg((char *)term);
            mch_errmsg("'\r\n");
            if (emsg_silent == 0)
            {
                screen_start();     /* don't know where cursor is now */
                out_flush();
                ui_delay(2000L, TRUE);
            }
            set_string_option_direct((char_u *)"term", -1, term,
                                                 OPT_FREE, 0);
            display_errors();
          }
          out_flush();
#ifdef HAVE_TGETENT
          if (!termcap_cleared)
          {
#endif
            clear_termoptions();        /* clear old options */
#ifdef HAVE_TGETENT
            termcap_cleared = TRUE;
          }
#endif
          parse_builtin_tcap(term);
#ifdef FEAT_GUI
          if (term_is_gui(term))
          {
            out_flush();
            gui_init();
            /* If starting the GUI failed, don't do any of the other
             * things for this terminal */
            if (!gui.in_use)
                return FAIL;
#ifdef HAVE_TGETENT
            break;            /* don't try using external termcap */
#endif
          }
#endif /* FEAT_GUI */
      }
#ifdef HAVE_TGETENT
    }
#endif

/*
 * special: There is no info in the termcap about whether the cursor
 * positioning is relative to the start of the screen or to the start of the
 * scrolling region.  We just guess here. Only msdos pcterm is known to do it
 * relative.
 */
    if (STRCMP(term, "pcterm") == 0)
      T_CCS = (char_u *)"yes";
    else
      T_CCS = empty_option;

#ifdef UNIX
/*
 * Any "stty" settings override the default for t_kb from the termcap.
 * This is in os_unix.c, because it depends a lot on the version of unix that
 * is being used.
 * Don't do this when the GUI is active, it uses "t_kb" and "t_kD" directly.
 */
#ifdef FEAT_GUI
    if (!gui.in_use)
#endif
      get_stty();
#endif

/*
 * If the termcap has no entry for 'bs' and/or 'del' and the ioctl() also
 * didn't work, use the default CTRL-H
 * The default for t_kD is DEL, unless t_kb is DEL.
 * The vim_strsave'd strings are probably lost forever, well it's only two
 * bytes.  Don't do this when the GUI is active, it uses "t_kb" and "t_kD"
 * directly.
 */
#ifdef FEAT_GUI
    if (!gui.in_use)
#endif
    {
      bs_p = find_termcode((char_u *)"kb");
      del_p = find_termcode((char_u *)"kD");
      if (bs_p == NULL || *bs_p == NUL)
          add_termcode((char_u *)"kb", (bs_p = (char_u *)CTRL_H_STR), FALSE);
      if ((del_p == NULL || *del_p == NUL) &&
                                  (bs_p == NULL || *bs_p != DEL))
          add_termcode((char_u *)"kD", (char_u *)DEL_STR, FALSE);
    }

#if defined(UNIX) || defined(VMS)
    term_is_xterm = vim_is_xterm(term);
    term_uses_xterm_mouse = vim_uses_xterm_mouse(term);
#endif

#ifdef FEAT_MOUSE
# if defined(UNIX) || defined(VMS)
#  ifdef FEAT_MOUSE_TTY
    /*
     * For Unix, set the 'ttymouse' option to the type of mouse to be used.
     * The termcode for the mouse is added as a side effect in option.c.
     */
    {
      char_u      *p;

      p = (char_u *)"";
#  ifdef FEAT_MOUSE_XTERM
#   ifdef FEAT_CLIPBOARD
#    ifdef FEAT_GUI
      if (!gui.in_use)
#    endif
          clip_init(FALSE);
#   endif
      if (term_uses_xterm_mouse)
      {
          if (use_xterm_mouse())
            p = NULL;   /* keep existing value, might be "xterm2" */
          else
            p = (char_u *)"xterm";
      }
#  endif
      if (p != NULL)
          set_option_value((char_u *)"ttym", 0L, p, 0);
      if (p == NULL
#   ifdef FEAT_GUI
            || gui.in_use
#   endif
            )
          check_mouse_termcode();   /* set mouse termcode anyway */
    }
#  endif
# else
    set_mouse_termcode(KS_MOUSE, (char_u *)"\233M");
# endif
#endif      /* FEAT_MOUSE */

#ifdef FEAT_SNIFF
    {
      char_u      name[2];

      name[0] = (int)KS_EXTRA;
      name[1] = (int)KE_SNIFF;
      add_termcode(name, (char_u *)"\233sniff", FALSE);
    }
#endif

#ifdef USE_TERM_CONSOLE
    /* DEFAULT_TERM indicates that it is the machine console. */
    if (STRCMP(term, DEFAULT_TERM) != 0)
      term_console = FALSE;
    else
    {
      term_console = TRUE;
# ifdef AMIGA
      win_resize_on();  /* enable window resizing reports */
# endif
    }
#endif

#if defined(UNIX) || defined(VMS)
    /*
     * 'ttyfast' is default on for xterm, iris-ansi and a few others.
     */
    if (vim_is_fastterm(term))
      p_tf = TRUE;
#endif
#ifdef USE_TERM_CONSOLE
    /*
     * 'ttyfast' is default on consoles
     */
    if (term_console)
      p_tf = TRUE;
#endif

    ttest(TRUE);  /* make sure we have a valid set of terminal codes */

    full_screen = TRUE;       /* we can use termcap codes from now on */
    set_term_defaults();      /* use current values as defaults */
#ifdef FEAT_TERMRESPONSE
    crv_status = CRV_GET;     /* Get terminal version later */
#endif

    /*
     * Initialize the terminal with the appropriate termcap codes.
     * Set the mouse and window title if possible.
     * Don't do this when starting, need to parse the .vimrc first, because it
     * may redefine t_TI etc.
     */
    if (starting != NO_SCREEN)
    {
      starttermcap();         /* may change terminal mode */
#ifdef FEAT_MOUSE
      setmouse();       /* may start using the mouse */
#endif
#ifdef FEAT_TITLE
      maketitle();            /* may display window title */
#endif
    }

      /* display initial screen after ttest() checking. jw. */
    if (width <= 0 || height <= 0)
    {
      /* termcap failed to report size */
      /* set defaults, in case ui_get_shellsize() also fails */
      width = 80;
#if defined(MSDOS) || defined(WIN3264)
      height = 25;          /* console is often 25 lines */
#else
      height = 24;          /* most terminals are 24 lines */
#endif
    }
    set_shellsize(width, height, FALSE);  /* may change Rows */
    if (starting != NO_SCREEN)
    {
      if (scroll_region)
          scroll_region_reset();          /* In case Rows changed */
      check_map_keycodes();   /* check mappings for terminal codes used */

#ifdef FEAT_AUTOCMD
      {
          buf_T   *old_curbuf;

          /*
           * Execute the TermChanged autocommands for each buffer that is
           * loaded.
           */
          old_curbuf = curbuf;
          for (curbuf = firstbuf; curbuf != NULL; curbuf = curbuf->b_next)
          {
            if (curbuf->b_ml.ml_mfp != NULL)
                apply_autocmds(EVENT_TERMCHANGED, NULL, NULL, FALSE,
                                                      curbuf);
          }
          if (buf_valid(old_curbuf))
            curbuf = old_curbuf;
      }
#endif
    }

#ifdef FEAT_TERMRESPONSE
    may_req_termresponse();
#endif

    return OK;
}

#if defined(FEAT_MOUSE) || defined(PROTO)

# ifdef FEAT_MOUSE_TTY
#  define HMT_NORMAL    1
#  define HMT_NETTERM   2
#  define HMT_DEC 4
#  define HMT_JSBTERM   8
#  define HMT_PTERM     16
static int has_mouse_termcode = 0;
# endif

# if (!defined(UNIX) || defined(FEAT_MOUSE_XTERM) || defined(FEAT_MOUSE_NET) \
      || defined(FEAT_MOUSE_DEC)) || defined(FEAT_MOUSE_JSB) \
      || defined(FEAT_MOUSE_PTERM) || defined(PROTO)
    void
set_mouse_termcode(n, s)
    int           n;    /* KS_MOUSE, KS_NETTERM_MOUSE or KS_DEC_MOUSE */
    char_u  *s;
{
    char_u  name[2];

    name[0] = n;
    name[1] = KE_FILLER;
    add_termcode(name, s, FALSE);
#  ifdef FEAT_MOUSE_TTY
#   ifdef FEAT_MOUSE_JSB
    if (n == KS_JSBTERM_MOUSE)
      has_mouse_termcode |= HMT_JSBTERM;
    else
#   endif
#   ifdef FEAT_MOUSE_NET
    if (n == KS_NETTERM_MOUSE)
      has_mouse_termcode |= HMT_NETTERM;
    else
#   endif
#   ifdef FEAT_MOUSE_DEC
    if (n == KS_DEC_MOUSE)
      has_mouse_termcode |= HMT_DEC;
    else
#   endif
#   ifdef FEAT_MOUSE_PTERM
    if (n == KS_PTERM_MOUSE)
      has_mouse_termcode |= HMT_PTERM;
    else
#   endif
      has_mouse_termcode |= HMT_NORMAL;
#  endif
}
# endif

# if ((defined(UNIX) || defined(VMS) || defined(OS2)) \
      && (defined(FEAT_MOUSE_XTERM) || defined(FEAT_MOUSE_DEC) \
          || defined(FEAT_MOUSE_GPM) || defined(FEAT_MOUSE_PTERM))) \
          || defined(PROTO)
    void
del_mouse_termcode(n)
    int           n;    /* KS_MOUSE, KS_NETTERM_MOUSE or KS_DEC_MOUSE */
{
    char_u  name[2];

    name[0] = n;
    name[1] = KE_FILLER;
    del_termcode(name);
#  ifdef FEAT_MOUSE_TTY
#   ifdef FEAT_MOUSE_JSB
    if (n == KS_JSBTERM_MOUSE)
      has_mouse_termcode &= ~HMT_JSBTERM;
    else
#   endif
#   ifdef FEAT_MOUSE_NET
    if (n == KS_NETTERM_MOUSE)
      has_mouse_termcode &= ~HMT_NETTERM;
    else
#   endif
#   ifdef FEAT_MOUSE_DEC
    if (n == KS_DEC_MOUSE)
      has_mouse_termcode &= ~HMT_DEC;
    else
#   endif
#   ifdef FEAT_MOUSE_PTERM
    if (n == KS_PTERM_MOUSE)
      has_mouse_termcode &= ~HMT_PTERM;
    else
#   endif
      has_mouse_termcode &= ~HMT_NORMAL;
#  endif
}
# endif
#endif

#ifdef HAVE_TGETENT
/*
 * Call tgetent()
 * Return error message if it fails, NULL if it's OK.
 */
    static char_u *
tgetent_error(tbuf, term)
    char_u  *tbuf;
    char_u  *term;
{
    int         i;

    i = TGETENT(tbuf, term);
    if (i < 0               /* -1 is always an error */
# ifdef TGETENT_ZERO_ERR
          || i == 0         /* sometimes zero is also an error */
# endif
       )
    {
      /* On FreeBSD tputs() gets a SEGV after a tgetent() which fails.  Call
       * tgetent() with the always existing "dumb" entry to avoid a crash or
       * hang. */
      (void)TGETENT(tbuf, "dumb");

      if (i < 0)
# ifdef TGETENT_ZERO_ERR
          return (char_u *)_("E557: Cannot open termcap file");
      if (i == 0)
# endif
#ifdef TERMINFO
          return (char_u *)_("E558: Terminal entry not found in terminfo");
#else
          return (char_u *)_("E559: Terminal entry not found in termcap");
#endif
    }
    return NULL;
}

/*
 * Some versions of tgetstr() have been reported to return -1 instead of NULL.
 * Fix that here.
 */
    static char_u *
vim_tgetstr(s, pp)
    char    *s;
    char_u  **pp;
{
    char    *p;

    p = tgetstr(s, (char **)pp);
    if (p == (char *)-1)
      p = NULL;
    return (char_u *)p;
}
#endif /* HAVE_TGETENT */

#if defined(HAVE_TGETENT) && (defined(UNIX) || defined(__EMX__) || defined(VMS) || defined(MACOS_X))
/*
 * Get Columns and Rows from the termcap. Used after a window signal if the
 * ioctl() fails. It doesn't make sense to call tgetent each time if the "co"
 * and "li" entries never change. But on some systems this works.
 * Errors while getting the entries are ignored.
 */
    void
getlinecol(cp, rp)
    long    *cp;  /* pointer to columns */
    long    *rp;  /* pointer to rows */
{
    char_u  tbuf[TBUFSZ];

    if (T_NAME != NULL && *T_NAME != NUL && tgetent_error(tbuf, T_NAME) == NULL)
    {
      if (*cp == 0)
          *cp = tgetnum("co");
      if (*rp == 0)
          *rp = tgetnum("li");
    }
}
#endif /* defined(HAVE_TGETENT) && defined(UNIX) */

/*
 * Get a string entry from the termcap and add it to the list of termcodes.
 * Used for <t_xx> special keys.
 * Give an error message for failure when not sourcing.
 * If force given, replace an existing entry.
 * Return FAIL if the entry was not found, OK if the entry was added.
 */
    int
add_termcap_entry(name, force)
    char_u  *name;
    int         force;
{
    char_u  *term;
    int         key;
    struct builtin_term *termp;
#ifdef HAVE_TGETENT
    char_u  *string;
    int         i;
    int         builtin_first;
    char_u  tbuf[TBUFSZ];
    char_u  tstrbuf[TBUFSZ];
    char_u  *tp = tstrbuf;
    char_u  *error_msg = NULL;
#endif

/*
 * If the GUI is running or will start in a moment, we only support the keys
 * that the GUI can produce.
 */
#ifdef FEAT_GUI
    if (gui.in_use || gui.starting)
      return gui_mch_haskey(name);
#endif

    if (!force && find_termcode(name) != NULL)      /* it's already there */
      return OK;

    term = T_NAME;
    if (term == NULL || *term == NUL)         /* 'term' not defined yet */
      return FAIL;

    if (term_is_builtin(term))                /* name starts with "builtin_" */
    {
      term += 8;
#ifdef HAVE_TGETENT
      builtin_first = TRUE;
#endif
    }
#ifdef HAVE_TGETENT
    else
      builtin_first = p_tbi;
#endif

#ifdef HAVE_TGETENT
/*
 * We can get the entry from the builtin termcap and from the external one.
 * If 'ttybuiltin' is on or the terminal name starts with "builtin_", try
 * builtin termcap first.
 * If 'ttybuiltin' is off, try external termcap first.
 */
    for (i = 0; i < 2; ++i)
    {
      if (!builtin_first == i)
#endif
      /*
       * Search in builtin termcap
       */
      {
          termp = find_builtin_term(term);
          if (termp->bt_string != NULL)   /* found it */
          {
            key = TERMCAP2KEY(name[0], name[1]);
            while (termp->bt_entry != (int)KS_NAME)
            {
                if ((int)termp->bt_entry == key)
                {
                  add_termcode(name, (char_u *)termp->bt_string,
                                            term_is_8bit(term));
                  return OK;
                }
                ++termp;
            }
          }
      }
#ifdef HAVE_TGETENT
      else
      /*
       * Search in external termcap
       */
      {
          error_msg = tgetent_error(tbuf, term);
          if (error_msg == NULL)
          {
            string = TGETSTR((char *)name, &tp);
            if (string != NULL && *string != NUL)
            {
                add_termcode(name, string, FALSE);
                return OK;
            }
          }
      }
    }
#endif

    if (sourcing_name == NULL)
    {
#ifdef HAVE_TGETENT
      if (error_msg != NULL)
          EMSG(error_msg);
      else
#endif
          EMSG2(_("E436: No \"%s\" entry in termcap"), name);
    }
    return FAIL;
}

    static int
term_is_builtin(name)
    char_u  *name;
{
    return (STRNCMP(name, "builtin_", (size_t)8) == 0);
}

/*
 * Return TRUE if terminal "name" uses CSI instead of <Esc>[.
 * Assume that the terminal is using 8-bit controls when the name contains
 * "8bit", like in "xterm-8bit".
 */
    int
term_is_8bit(name)
    char_u  *name;
{
    return (detected_8bit || strstr((char *)name, "8bit") != NULL);
}

/*
 * Translate terminal control chars from 7-bit to 8-bit:
 * <Esc>[ -> CSI
 * <Esc>] -> <M-C-]>
 * <Esc>O -> <M-C-O>
 */
    static int
term_7to8bit(p)
    char_u  *p;
{
    if (*p == ESC)
    {
      if (p[1] == '[')
          return CSI;
      if (p[1] == ']')
          return 0x9d;
      if (p[1] == 'O')
          return 0x8f;
    }
    return 0;
}

#ifdef FEAT_GUI
    int
term_is_gui(name)
    char_u  *name;
{
    return (STRCMP(name, "builtin_gui") == 0 || STRCMP(name, "gui") == 0);
}
#endif

#if !defined(HAVE_TGETENT) || defined(AMIGA) || defined(PROTO)

    char_u *
tltoa(i)
    unsigned long i;
{
    static char_u buf[16];
    char_u  *p;

    p = buf + 15;
    *p = '\0';
    do
    {
      --p;
      *p = (char_u) (i % 10 + '0');
      i /= 10;
    }
    while (i > 0 && p > buf);
    return p;
}
#endif

#ifndef HAVE_TGETENT

/*
 * minimal tgoto() implementation.
 * no padding and we only parse for %i %d and %+char
 */
static char *tgoto __ARGS((char *, int, int));

    static char *
tgoto(cm, x, y)
    char *cm;
    int x, y;
{
    static char buf[30];
    char *p, *s, *e;

    if (!cm)
      return "OOPS";
    e = buf + 29;
    for (s = buf; s < e && *cm; cm++)
    {
      if (*cm != '%')
      {
          *s++ = *cm;
          continue;
      }
      switch (*++cm)
      {
      case 'd':
          p = (char *)tltoa((unsigned long)y);
          y = x;
          while (*p)
            *s++ = *p++;
          break;
      case 'i':
          x++;
          y++;
          break;
      case '+':
          *s++ = (char)(*++cm + y);
          y = x;
          break;
      case '%':
          *s++ = *cm;
          break;
      default:
          return "OOPS";
      }
    }
    *s = '\0';
    return buf;
}

#endif /* HAVE_TGETENT */

/*
 * Set the terminal name and initialize the terminal options.
 * If "name" is NULL or empty, get the terminal name from the environment.
 * If that fails, use the default terminal name.
 */
    void
termcapinit(name)
    char_u *name;
{
    char_u  *term;

    if (name != NULL && *name == NUL)
      name = NULL;          /* empty name is equal to no name */
    term = name;

#ifdef __BEOS__
    /*
     * TERM environment variable is normally set to 'ansi' on the Bebox;
     * Since the BeBox doesn't quite support full ANSI yet, we use our
     * own custom 'ansi-beos' termcap instead, unless the -T option has
     * been given on the command line.
     */
    if (term == NULL
             && strcmp((char *)mch_getenv((char_u *)"TERM"), "ansi") == 0)
      term = DEFAULT_TERM;
#endif
#ifndef MSWIN
    if (term == NULL)
      term = mch_getenv((char_u *)"TERM");
#endif
    if (term == NULL || *term == NUL)
      term = DEFAULT_TERM;
    set_string_option_direct((char_u *)"term", -1, term, OPT_FREE, 0);

    /* Set the default terminal name. */
    set_string_default("term", term);
    set_string_default("ttytype", term);

    /*
     * Avoid using "term" here, because the next mch_getenv() may overwrite it.
     */
    set_termname(T_NAME != NULL ? T_NAME : term);
}

/*
 * the number of calls to ui_write is reduced by using the buffer "out_buf"
 */
#ifdef DOS16
# define OUT_SIZE 255         /* only have 640K total... */
#else
# ifdef FEAT_GUI_W16
#  define OUT_SIZE      1023        /* Save precious 1K near data */
# else
#  define OUT_SIZE      2047
# endif
#endif
          /* Add one to allow mch_write() in os_win32.c to append a NUL */
static char_u           out_buf[OUT_SIZE + 1];
static int        out_pos = 0;      /* number of chars in out_buf */

/*
 * out_flush(): flush the output buffer
 */
    void
out_flush()
{
    int         len;

    if (out_pos != 0)
    {
      /* set out_pos to 0 before ui_write, to avoid recursiveness */
      len = out_pos;
      out_pos = 0;
      ui_write(out_buf, len);
    }
}

#if defined(FEAT_MBYTE) || defined(PROTO)
/*
 * Sometimes a byte out of a multi-byte character is written with out_char().
 * To avoid flushing half of the character, call this function first.
 */
    void
out_flush_check()
{
    if (enc_dbcs != 0 && out_pos >= OUT_SIZE - MB_MAXBYTES)
      out_flush();
}
#endif

#ifdef FEAT_GUI
/*
 * out_trash(): Throw away the contents of the output buffer
 */
    void
out_trash()
{
    out_pos = 0;
}
#endif

/*
 * out_char(c): put a byte into the output buffer.
 *          Flush it if it becomes full.
 * This should not be used for outputting text on the screen (use functions
 * like msg_puts() and screen_putchar() for that).
 */
    void
out_char(c)
    unsigned      c;
{
#if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(MACOS_X_UNIX)
    if (c == '\n')      /* turn LF into CR-LF (CRMOD doesn't seem to do this) */
      out_char('\r');
#endif

    out_buf[out_pos++] = c;

    /* For testing we flush each time. */
    if (out_pos >= OUT_SIZE || p_wd)
      out_flush();
}

static void out_char_nf __ARGS((unsigned));

/*
 * out_char_nf(c): like out_char(), but don't flush when p_wd is set
 */
    static void
out_char_nf(c)
    unsigned      c;
{
#if defined(UNIX) || defined(VMS) || defined(AMIGA) || defined(MACOS_X_UNIX)
    if (c == '\n')      /* turn LF into CR-LF (CRMOD doesn't seem to do this) */
      out_char_nf('\r');
#endif

    out_buf[out_pos++] = c;

    if (out_pos >= OUT_SIZE)
      out_flush();
}

/*
 * A never-padding out_str.
 * use this whenever you don't want to run the string through tputs.
 * tputs above is harmless, but tputs from the termcap library
 * is likely to strip off leading digits, that it mistakes for padding
 * information, and "%i", "%d", etc.
 * This should only be used for writing terminal codes, not for outputting
 * normal text (use functions like msg_puts() and screen_putchar() for that).
 */
    void
out_str_nf(s)
    char_u *s;
{
    if (out_pos > OUT_SIZE - 20)  /* avoid terminal strings being split up */
      out_flush();
    while (*s)
      out_char_nf(*s++);

    /* For testing we write one string at a time. */
    if (p_wd)
      out_flush();
}

/*
 * out_str(s): Put a character string a byte at a time into the output buffer.
 * If HAVE_TGETENT is defined use the termcap parser. (jw)
 * This should only be used for writing terminal codes, not for outputting
 * normal text (use functions like msg_puts() and screen_putchar() for that).
 */
    void
out_str(s)
    char_u   *s;
{
    if (s != NULL && *s)
    {
#ifdef FEAT_GUI
      /* Don't use tputs() when GUI is used, ncurses crashes. */
      if (gui.in_use)
      {
          out_str_nf(s);
          return;
      }
#endif
      /* avoid terminal strings being split up */
      if (out_pos > OUT_SIZE - 20)
          out_flush();
#ifdef HAVE_TGETENT
      tputs((char *)s, 1, TPUTSFUNCAST out_char_nf);
#else
      while (*s)
          out_char_nf(*s++);
#endif

      /* For testing we write one string at a time. */
      if (p_wd)
          out_flush();
    }
}

/*
 * cursor positioning using termcap parser. (jw)
 */
    void
term_windgoto(row, col)
    int         row;
    int         col;
{
    OUT_STR(tgoto((char *)T_CM, col, row));
}

    void
term_cursor_right(i)
    int         i;
{
    OUT_STR(tgoto((char *)T_CRI, 0, i));
}

    void
term_append_lines(line_count)
    int         line_count;
{
    OUT_STR(tgoto((char *)T_CAL, 0, line_count));
}

    void
term_delete_lines(line_count)
    int         line_count;
{
    OUT_STR(tgoto((char *)T_CDL, 0, line_count));
}

#if defined(HAVE_TGETENT) || defined(PROTO)
    void
term_set_winpos(x, y)
    int         x;
    int         y;
{
    /* Can't handle a negative value here */
    if (x < 0)
      x = 0;
    if (y < 0)
      y = 0;
    OUT_STR(tgoto((char *)T_CWP, y, x));
}

    void
term_set_winsize(width, height)
    int         width;
    int         height;
{
    OUT_STR(tgoto((char *)T_CWS, height, width));
}
#endif

    void
term_fg_color(n)
    int         n;
{
    /* Use "AF" termcap entry if present, "Sf" entry otherwise */
    if (*T_CAF)
      term_color(T_CAF, n);
    else if (*T_CSF)
      term_color(T_CSF, n);
}

    void
term_bg_color(n)
    int         n;
{
    /* Use "AB" termcap entry if present, "Sb" entry otherwise */
    if (*T_CAB)
      term_color(T_CAB, n);
    else if (*T_CSB)
      term_color(T_CSB, n);
}

    static void
term_color(s, n)
    char_u  *s;
    int           n;
{
    char    buf[20];
    int i = 2;    /* index in s[] just after <Esc>[ or CSI */

    /* Special handling of 16 colors, because termcap can't handle it */
    /* Also accept "\e[3%dm" for TERMINFO, it is sometimes used */
    /* Also accept CSI instead of <Esc>[ */
    if (n >= 8 && t_colors >= 16
            && ((s[0] == ESC && s[1] == '[') || (s[0] == CSI && (i = 1) == 1))
            && s[i] != NUL
            && (STRCMP(s + i + 1, "%p1%dm") == 0
              || STRCMP(s + i + 1, "%dm") == 0)
            && (s[i] == '3' || s[i] == '4'))
    {
      sprintf(buf,
#ifdef TERMINFO
            "%s%s%%p1%%dm",
#else
            "%s%s%%dm",
#endif
            i == 2 ? IF_EB("\033[", ESC_STR "[") : "\233",
            s[i] == '3' ? (n >= 16 ? "38;5;" : "9")
                      : (n >= 16 ? "48;5;" : "10"));
      OUT_STR(tgoto(buf, 0, n >= 16 ? n : n - 8));
    }
    else
      OUT_STR(tgoto((char *)s, 0, n));
}

#if (defined(FEAT_TITLE) && (defined(UNIX) || defined(OS2) || defined(VMS) || defined(MACOS_X))) || defined(PROTO)
/*
 * Generic function to set window title, using t_ts and t_fs.
 */
    void
term_settitle(title)
    char_u  *title;
{
    /* t_ts takes one argument: column in status line */
    OUT_STR(tgoto((char *)T_TS, 0, 0));   /* set title start */
    out_str_nf(title);
    out_str(T_FS);                  /* set title end */
    out_flush();
}
#endif

/*
 * Make sure we have a valid set or terminal options.
 * Replace all entries that are NULL by empty_option
 */
    void
ttest(pairs)
    int     pairs;
{
    check_options();              /* make sure no options are NULL */

    /*
     * MUST have "cm": cursor motion.
     */
    if (*T_CM == NUL)
      EMSG(_("E437: terminal capability \"cm\" required"));

    /*
     * if "cs" defined, use a scroll region, it's faster.
     */
    if (*T_CS != NUL)
      scroll_region = TRUE;
    else
      scroll_region = FALSE;

    if (pairs)
    {
      /*
       * optional pairs
       */
      /* TP goes to normal mode for TI (invert) and TB (bold) */
      if (*T_ME == NUL)
          T_ME = T_MR = T_MD = T_MB = empty_option;
      if (*T_SO == NUL || *T_SE == NUL)
          T_SO = T_SE = empty_option;
      if (*T_US == NUL || *T_UE == NUL)
          T_US = T_UE = empty_option;
      if (*T_CZH == NUL || *T_CZR == NUL)
          T_CZH = T_CZR = empty_option;

      /* T_VE is needed even though T_VI is not defined */
      if (*T_VE == NUL)
          T_VI = empty_option;

      /* if 'mr' or 'me' is not defined use 'so' and 'se' */
      if (*T_ME == NUL)
      {
          T_ME = T_SE;
          T_MR = T_SO;
          T_MD = T_SO;
      }

      /* if 'so' or 'se' is not defined use 'mr' and 'me' */
      if (*T_SO == NUL)
      {
          T_SE = T_ME;
          if (*T_MR == NUL)
            T_SO = T_MD;
          else
            T_SO = T_MR;
      }

      /* if 'ZH' or 'ZR' is not defined use 'mr' and 'me' */
      if (*T_CZH == NUL)
      {
          T_CZR = T_ME;
          if (*T_MR == NUL)
            T_CZH = T_MD;
          else
            T_CZH = T_MR;
      }

      /* "Sb" and "Sf" come in pairs */
      if (*T_CSB == NUL || *T_CSF == NUL)
      {
          T_CSB = empty_option;
          T_CSF = empty_option;
      }

      /* "AB" and "AF" come in pairs */
      if (*T_CAB == NUL || *T_CAF == NUL)
      {
          T_CAB = empty_option;
          T_CAF = empty_option;
      }

      /* if 'Sb' and 'AB' are not defined, reset "Co" */
      if (*T_CSB == NUL && *T_CAB == NUL)
          T_CCO = empty_option;

      /* Set 'weirdinvert' according to value of 't_xs' */
      p_wiv = (*T_XS != NUL);
    }
    need_gather = TRUE;

    /* Set t_colors to the value of t_Co. */
    t_colors = atoi((char *)T_CCO);
}

#if (defined(FEAT_GUI) && (defined(FEAT_MENU) || !defined(USE_ON_FLY_SCROLL))) \
      || defined(PROTO)
/*
 * Represent the given long_u as individual bytes, with the most significant
 * byte first, and store them in dst.
 */
    void
add_long_to_buf(val, dst)
    long_u  val;
    char_u  *dst;
{
    int         i;
    int         shift;

    for (i = 1; i <= sizeof(long_u); i++)
    {
      shift = 8 * (sizeof(long_u) - i);
      dst[i - 1] = (char_u) ((val >> shift) & 0xff);
    }
}

static int get_long_from_buf __ARGS((char_u *buf, long_u *val));

/*
 * Interpret the next string of bytes in buf as a long integer, with the most
 * significant byte first.  Note that it is assumed that buf has been through
 * inchar(), so that NUL and K_SPECIAL will be represented as three bytes each.
 * Puts result in val, and returns the number of bytes read from buf
 * (between sizeof(long_u) and 2 * sizeof(long_u)), or -1 if not enough bytes
 * were present.
 */
    static int
get_long_from_buf(buf, val)
    char_u  *buf;
    long_u  *val;
{
    int         len;
    char_u  bytes[sizeof(long_u)];
    int         i;
    int         shift;

    *val = 0;
    len = get_bytes_from_buf(buf, bytes, (int)sizeof(long_u));
    if (len != -1)
    {
      for (i = 0; i < sizeof(long_u); i++)
      {
          shift = 8 * (sizeof(long_u) - 1 - i);
          *val += (long_u)bytes[i] << shift;
      }
    }
    return len;
}
#endif

#if defined(FEAT_GUI) \
    || (defined(FEAT_MOUSE) && (!defined(UNIX) || defined(FEAT_MOUSE_XTERM)))
/*
 * Read the next num_bytes bytes from buf, and store them in bytes.  Assume
 * that buf has been through inchar().    Returns the actual number of bytes used
 * from buf (between num_bytes and num_bytes*2), or -1 if not enough bytes were
 * available.
 */
    static int
get_bytes_from_buf(buf, bytes, num_bytes)
    char_u  *buf;
    char_u  *bytes;
    int         num_bytes;
{
    int         len = 0;
    int         i;
    char_u  c;

    for (i = 0; i < num_bytes; i++)
    {
      if ((c = buf[len++]) == NUL)
          return -1;
      if (c == K_SPECIAL)
      {
          if (buf[len] == NUL || buf[len + 1] == NUL)     /* cannot happen? */
            return -1;
          if (buf[len++] == (int)KS_ZERO)
            c = NUL;
          ++len;  /* skip KE_FILLER */
          /* else it should be KS_SPECIAL, and c already equals K_SPECIAL */
      }
      else if (c == CSI && buf[len] == KS_EXTRA
                                     && buf[len + 1] == (int)KE_CSI)
          /* CSI is stored as CSI KS_SPECIAL KE_CSI to avoid confusion with
           * the start of a special key, see add_to_input_buf_csi(). */
          len += 2;
      bytes[i] = c;
    }
    return len;
}
#endif

/*
 * Check if the new shell size is valid, correct it if it's too small.
 */
    void
check_shellsize()
{
    if (Columns < MIN_COLUMNS)
      Columns = MIN_COLUMNS;
    if (Rows < min_rows())    /* need room for one window and command line */
      Rows = min_rows();
}

/*
 * Invoked just before the screen structures are going to be (re)allocated.
 */
    void
win_new_shellsize()
{
    static int    old_Rows = 0;
    static int    old_Columns = 0;

    if (old_Rows != Rows || old_Columns != Columns)
      ui_new_shellsize();
    if (old_Rows != Rows)
    {
      /* if 'window' uses the whole screen, keep it using that */
      if (p_window == old_Rows - 1 || old_Rows == 0)
          p_window = Rows - 1;
      old_Rows = Rows;
      shell_new_rows(); /* update window sizes */
    }
    if (old_Columns != Columns)
    {
      old_Columns = Columns;
#ifdef FEAT_VERTSPLIT
      shell_new_columns();    /* update window sizes */
#endif
    }
}

/*
 * Call this function when the Vim shell has been resized in any way.
 * Will obtain the current size and redraw (also when size didn't change).
 */
    void
shell_resized()
{
    set_shellsize(0, 0, FALSE);
}

/*
 * Check if the shell size changed.  Handle a resize.
 * When the size didn't change, nothing happens.
 */
    void
shell_resized_check()
{
    int           old_Rows = Rows;
    int           old_Columns = Columns;

    (void)ui_get_shellsize();
    check_shellsize();
    if (old_Rows != Rows || old_Columns != Columns)
      shell_resized();
}

/*
 * Set size of the Vim shell.
 * If 'mustset' is TRUE, we must set Rows and Columns, do not get the real
 * window size (this is used for the :win command).
 * If 'mustset' is FALSE, we may try to get the real window size and if
 * it fails use 'width' and 'height'.
 */
    void
set_shellsize(width, height, mustset)
    int         width, height;
    int         mustset;
{
    static int          busy = FALSE;

    /*
     * Avoid recursiveness, can happen when setting the window size causes
     * another window-changed signal.
     */
    if (busy)
      return;

    if (width < 0 || height < 0)    /* just checking... */
      return;

    if (State == HITRETURN || State == SETWSIZE) /* postpone the resizing */
    {
      State = SETWSIZE;
      return;
    }

    ++busy;

#ifdef AMIGA
    out_flush();      /* must do this before mch_get_shellsize() for
                         some obscure reason */
#endif

    if (mustset || (ui_get_shellsize() == FAIL && height != 0))
    {
      Rows = height;
      Columns = width;
      check_shellsize();
      ui_set_shellsize(mustset);
    }
    else
      check_shellsize();

    /* The window layout used to be adjusted here, but it now happens in
     * screenalloc() (also invoked from screenclear()).  That is because the
     * "busy" check above may skip this, but not screenalloc(). */

    if (State != ASKMORE && State != EXTERNCMD && State != CONFIRM)
      screenclear();
    else
      screen_start();       /* don't know where cursor is now */

    if (starting != NO_SCREEN)
    {
#ifdef FEAT_TITLE
      maketitle();
#endif
      changed_line_abv_curs();
      invalidate_botline();

      /*
       * We only redraw when it's needed:
       * - While at the more prompt or executing an external command, don't
       *   redraw, but position the cursor.
       * - While editing the command line, only redraw that.
       * - in Ex mode, don't redraw anything.
       * - Otherwise, redraw right now, and position the cursor.
       * Always need to call update_screen() or screenalloc(), to make
       * sure Rows/Columns and the size of ScreenLines[] is correct!
       */
      if (State == ASKMORE || State == EXTERNCMD || State == CONFIRM
                                               || exmode_active)
      {
          screenalloc(FALSE);
          repeat_message();
      }
      else
      {
#ifdef FEAT_SCROLLBIND
          if (curwin->w_p_scb)
            do_check_scrollbind(TRUE);
#endif
          if (State & CMDLINE)
          {
            update_screen(NOT_VALID);
            redrawcmdline();
          }
          else
          {
            update_topline();
#if defined(FEAT_INS_EXPAND)
            if (pum_visible())
            {
                redraw_later(NOT_VALID);
                ins_compl_show_pum(); /* This includes the redraw. */
            }
            else
#endif
                update_screen(NOT_VALID);
            if (redrawing())
                setcursor();
          }
      }
      cursor_on();          /* redrawing may have switched it off */
    }
    out_flush();
    --busy;
}

/*
 * Set the terminal to TMODE_RAW (for Normal mode) or TMODE_COOK (for external
 * commands and Ex mode).
 */
    void
settmode(tmode)
    int      tmode;
{
#ifdef FEAT_GUI
    /* don't set the term where gvim was started to any mode */
    if (gui.in_use)
      return;
#endif

    if (full_screen)
    {
      /*
       * When returning after calling a shell we want to really set the
       * terminal to raw mode, even though we think it already is, because
       * the shell program may have reset the terminal mode.
       * When we think the terminal is normal, don't try to set it to
       * normal again, because that causes problems (logout!) on some
       * machines.
       */
      if (tmode != TMODE_COOK || cur_tmode != TMODE_COOK)
      {
#ifdef FEAT_TERMRESPONSE
          /* May need to check for T_CRV response and termcodes, it doesn't
           * work in Cooked mode, an external program may get them. */
          if (tmode != TMODE_RAW && crv_status == CRV_SENT)
            (void)vpeekc_nomap();
          check_for_codes_from_term();
#endif
#ifdef FEAT_MOUSE_TTY
          if (tmode != TMODE_RAW)
            mch_setmouse(FALSE);          /* switch mouse off */
#endif
          out_flush();
          mch_settmode(tmode);    /* machine specific function */
          cur_tmode = tmode;
#ifdef FEAT_MOUSE
          if (tmode == TMODE_RAW)
            setmouse();             /* may switch mouse on */
#endif
          out_flush();
      }
#ifdef FEAT_TERMRESPONSE
      may_req_termresponse();
#endif
    }
}

    void
starttermcap()
{
    if (full_screen && !termcap_active)
    {
      out_str(T_TI);                /* start termcap mode */
      out_str(T_KS);                /* start "keypad transmit" mode */
      out_flush();
      termcap_active = TRUE;
      screen_start();               /* don't know where cursor is now */
#ifdef FEAT_TERMRESPONSE
      may_req_termresponse();
      /* Immediately check for a response.  If t_Co changes, we don't want
       * to redraw with wrong colors first. */
      check_for_codes_from_term();
#endif
    }
}

    void
stoptermcap()
{
    screen_stop_highlight();
    reset_cterm_colors();
    if (termcap_active)
    {
#ifdef FEAT_TERMRESPONSE
      /* May need to check for T_CRV response. */
      if (crv_status == CRV_SENT)
          (void)vpeekc_nomap();
      /* Check for termcodes first, otherwise an external program may get
       * them. */
      check_for_codes_from_term();
#endif
      out_str(T_KE);                /* stop "keypad transmit" mode */
      out_flush();
      termcap_active = FALSE;
      cursor_on();                  /* just in case it is still off */
      out_str(T_TE);                /* stop termcap mode */
      screen_start();               /* don't know where cursor is now */
      out_flush();
    }
}

#if defined(FEAT_TERMRESPONSE) || defined(PROTO)
/*
 * Request version string (for xterm) when needed.
 * Only do this after switching to raw mode, otherwise the result will be
 * echoed.
 * Only do this after startup has finished, to avoid that the response comes
 * while executing "-c !cmd" or even after "-c quit".
 * Only do this after termcap mode has been started, otherwise the codes for
 * the cursor keys may be wrong.
 * Only do this when 'esckeys' is on, otherwise the response causes trouble in
 * Insert mode.
 * On Unix only do it when both output and input are a tty (avoid writing
 * request to terminal while reading from a file).
 * The result is caught in check_termcode().
 */
    void
may_req_termresponse()
{
    if (crv_status == CRV_GET
          && cur_tmode == TMODE_RAW
          && starting == 0
          && termcap_active
          && p_ek
# ifdef UNIX
          && isatty(1)
          && isatty(read_cmd_fd)
# endif
          && *T_CRV != NUL)
    {
      out_str(T_CRV);
      crv_status = CRV_SENT;
      /* check for the characters now, otherwise they might be eaten by
       * get_keystroke() */
      out_flush();
      (void)vpeekc_nomap();
    }
}
#endif

/*
 * Return TRUE when saving and restoring the screen.
 */
    int
swapping_screen()
{
    return (full_screen && *T_TI != NUL);
}

#ifdef FEAT_MOUSE
/*
 * setmouse() - switch mouse on/off depending on current mode and 'mouse'
 */
    void
setmouse()
{
# ifdef FEAT_MOUSE_TTY
    int         checkfor;
# endif

# ifdef FEAT_MOUSESHAPE
    update_mouseshape(-1);
# endif

# ifdef FEAT_MOUSE_TTY /* Should be outside proc, but may break MOUSESHAPE */
#  ifdef FEAT_GUI
    /* In the GUI the mouse is always enabled. */
    if (gui.in_use)
      return;
#  endif
    /* be quick when mouse is off */
    if (*p_mouse == NUL || has_mouse_termcode == 0)
      return;

    /* don't switch mouse on when not in raw mode (Ex mode) */
    if (cur_tmode != TMODE_RAW)
    {
      mch_setmouse(FALSE);
      return;
    }

#  ifdef FEAT_VISUAL
    if (VIsual_active)
      checkfor = MOUSE_VISUAL;
    else
#  endif
      if (State == HITRETURN || State == ASKMORE || State == SETWSIZE)
      checkfor = MOUSE_RETURN;
    else if (State & INSERT)
      checkfor = MOUSE_INSERT;
    else if (State & CMDLINE)
      checkfor = MOUSE_COMMAND;
    else if (State == CONFIRM || State == EXTERNCMD)
      checkfor = ' '; /* don't use mouse for ":confirm" or ":!cmd" */
    else
      checkfor = MOUSE_NORMAL;    /* assume normal mode */

    if (mouse_has(checkfor))
      mch_setmouse(TRUE);
    else
      mch_setmouse(FALSE);
# endif
}

/*
 * Return TRUE if
 * - "c" is in 'mouse', or
 * - 'a' is in 'mouse' and "c" is in MOUSE_A, or
 * - the current buffer is a help file and 'h' is in 'mouse' and we are in a
 *   normal editing mode (not at hit-return message).
 */
    int
mouse_has(c)
    int         c;
{
    char_u  *p;

    for (p = p_mouse; *p; ++p)
      switch (*p)
      {
          case 'a': if (vim_strchr((char_u *)MOUSE_A, c) != NULL)
                    return TRUE;
                  break;
          case MOUSE_HELP: if (c != MOUSE_RETURN && curbuf->b_help)
                         return TRUE;
                       break;
          default: if (c == *p) return TRUE; break;
      }
    return FALSE;
}

/*
 * Return TRUE when 'mousemodel' is set to "popup" or "popup_setpos".
 */
    int
mouse_model_popup()
{
    return (p_mousem[0] == 'p');
}
#endif

/*
 * By outputting the 'cursor very visible' termcap code, for some windowed
 * terminals this makes the screen scrolled to the correct position.
 * Used when starting Vim or returning from a shell.
 */
    void
scroll_start()
{
    if (*T_VS != NUL)
    {
      out_str(T_VS);
      out_str(T_VE);
      screen_start();               /* don't know where cursor is now */
    }
}

static int cursor_is_off = FALSE;

/*
 * Enable the cursor.
 */
    void
cursor_on()
{
    if (cursor_is_off)
    {
      out_str(T_VE);
      cursor_is_off = FALSE;
    }
}

/*
 * Disable the cursor.
 */
    void
cursor_off()
{
    if (full_screen)
    {
      if (!cursor_is_off)
          out_str(T_VI);          /* disable cursor */
      cursor_is_off = TRUE;
    }
}

#if defined(CURSOR_SHAPE) || defined(PROTO)
/*
 * Set cursor shape to match Insert mode.
 */
    void
term_cursor_shape()
{
    static int showing_insert_mode = MAYBE;

    if (!full_screen || *T_CSI == NUL || *T_CEI == NUL)
      return;

    if (State & INSERT)
    {
      if (showing_insert_mode != TRUE)
          out_str(T_CSI);         /* Insert mode cursor */
      showing_insert_mode = TRUE;
    }
    else
    {
      if (showing_insert_mode != FALSE)
          out_str(T_CEI);         /* non-Insert mode cursor */
      showing_insert_mode = FALSE;
    }
}
#endif

/*
 * Set scrolling region for window 'wp'.
 * The region starts 'off' lines from the start of the window.
 * Also set the vertical scroll region for a vertically split window.  Always
 * the full width of the window, excluding the vertical separator.
 */
    void
scroll_region_set(wp, off)
    win_T   *wp;
    int           off;
{
    OUT_STR(tgoto((char *)T_CS, W_WINROW(wp) + wp->w_height - 1,
                                           W_WINROW(wp) + off));
#ifdef FEAT_VERTSPLIT
    if (*T_CSV != NUL && wp->w_width != Columns)
      OUT_STR(tgoto((char *)T_CSV, W_WINCOL(wp) + wp->w_width - 1,
                                                 W_WINCOL(wp)));
#endif
    screen_start();               /* don't know where cursor is now */
}

/*
 * Reset scrolling region to the whole screen.
 */
    void
scroll_region_reset()
{
    OUT_STR(tgoto((char *)T_CS, (int)Rows - 1, 0));
#ifdef FEAT_VERTSPLIT
    if (*T_CSV != NUL)
      OUT_STR(tgoto((char *)T_CSV, (int)Columns - 1, 0));
#endif
    screen_start();               /* don't know where cursor is now */
}


/*
 * List of terminal codes that are currently recognized.
 */

static struct termcode
{
    char_u  name[2];        /* termcap name of entry */
    char_u  *code;          /* terminal code (in allocated memory) */
    int         len;        /* STRLEN(code) */
    int         modlen;     /* length of part before ";*~". */
} *termcodes = NULL;

static int  tc_max_len = 0; /* number of entries that termcodes[] can hold */
static int  tc_len = 0;     /* current number of entries in termcodes[] */

static int termcode_star __ARGS((char_u *code, int len));

    void
clear_termcodes()
{
    while (tc_len > 0)
      vim_free(termcodes[--tc_len].code);
    vim_free(termcodes);
    termcodes = NULL;
    tc_max_len = 0;

#ifdef HAVE_TGETENT
    BC = (char *)empty_option;
    UP = (char *)empty_option;
    PC = NUL;                 /* set pad character to NUL */
    ospeed = 0;
#endif

    need_gather = TRUE;       /* need to fill termleader[] */
}

#define ATC_FROM_TERM 55

/*
 * Add a new entry to the list of terminal codes.
 * The list is kept alphabetical for ":set termcap"
 * "flags" is TRUE when replacing 7-bit by 8-bit controls is desired.
 * "flags" can also be ATC_FROM_TERM for got_code_from_term().
 */
    void
add_termcode(name, string, flags)
    char_u  *name;
    char_u  *string;
    int           flags;
{
    struct termcode *new_tc;
    int               i, j;
    char_u      *s;
    int               len;

    if (string == NULL || *string == NUL)
    {
      del_termcode(name);
      return;
    }

    s = vim_strsave(string);
    if (s == NULL)
      return;

    /* Change leading <Esc>[ to CSI, change <Esc>O to <M-O>. */
    if (flags != 0 && flags != ATC_FROM_TERM && term_7to8bit(string) != 0)
    {
      mch_memmove(s, s + 1, STRLEN(s));
      s[0] = term_7to8bit(string);
    }
    len = (int)STRLEN(s);

    need_gather = TRUE;       /* need to fill termleader[] */

    /*
     * need to make space for more entries
     */
    if (tc_len == tc_max_len)
    {
      tc_max_len += 20;
      new_tc = (struct termcode *)alloc(
                      (unsigned)(tc_max_len * sizeof(struct termcode)));
      if (new_tc == NULL)
      {
          tc_max_len -= 20;
          return;
      }
      for (i = 0; i < tc_len; ++i)
          new_tc[i] = termcodes[i];
      vim_free(termcodes);
      termcodes = new_tc;
    }

    /*
     * Look for existing entry with the same name, it is replaced.
     * Look for an existing entry that is alphabetical higher, the new entry
     * is inserted in front of it.
     */
    for (i = 0; i < tc_len; ++i)
    {
      if (termcodes[i].name[0] < name[0])
          continue;
      if (termcodes[i].name[0] == name[0])
      {
          if (termcodes[i].name[1] < name[1])
            continue;
          /*
           * Exact match: May replace old code.
           */
          if (termcodes[i].name[1] == name[1])
          {
            if (flags == ATC_FROM_TERM && (j = termcode_star(
                            termcodes[i].code, termcodes[i].len)) > 0)
            {
                /* Don't replace ESC[123;*X or ESC O*X with another when
                 * invoked from got_code_from_term(). */
                if (len == termcodes[i].len - j
                      && STRNCMP(s, termcodes[i].code, len - 1) == 0
                      && s[len - 1]
                           == termcodes[i].code[termcodes[i].len - 1])
                {
                  /* They are equal but for the ";*": don't add it. */
                  vim_free(s);
                  return;
                }
            }
            else
            {
                /* Replace old code. */
                vim_free(termcodes[i].code);
                --tc_len;
                break;
            }
          }
      }
      /*
       * Found alphabetical larger entry, move rest to insert new entry
       */
      for (j = tc_len; j > i; --j)
          termcodes[j] = termcodes[j - 1];
      break;
    }

    termcodes[i].name[0] = name[0];
    termcodes[i].name[1] = name[1];
    termcodes[i].code = s;
    termcodes[i].len = len;

    /* For xterm we recognize special codes like "ESC[42;*X" and "ESC O*X" that
     * accept modifiers. */
    termcodes[i].modlen = 0;
    j = termcode_star(s, len);
    if (j > 0)
      termcodes[i].modlen = len - 1 - j;
    ++tc_len;
}

/*
 * Check termcode "code[len]" for ending in ;*X, <Esc>O*X or <M-O>*X.
 * The "X" can be any character.
 * Return 0 if not found, 2 for ;*X and 1 for O*X and <M-O>*X.
 */
    static int
termcode_star(code, len)
    char_u  *code;
    int           len;
{
    /* Shortest is <M-O>*X.  With ; shortest is <CSI>1;*X */
    if (len >= 3 && code[len - 2] == '*')
    {
      if (len >= 5 && code[len - 3] == ';')
          return 2;
      if ((len >= 4 && code[len - 3] == 'O') || code[len - 3] == 'O' + 128)
          return 1;
    }
    return 0;
}

    char_u  *
find_termcode(name)
    char_u  *name;
{
    int         i;

    for (i = 0; i < tc_len; ++i)
      if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
          return termcodes[i].code;
    return NULL;
}

#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
    char_u *
get_termcode(i)
    int         i;
{
    if (i >= tc_len)
      return NULL;
    return &termcodes[i].name[0];
}
#endif

    void
del_termcode(name)
    char_u  *name;
{
    int         i;

    if (termcodes == NULL)    /* nothing there yet */
      return;

    need_gather = TRUE;       /* need to fill termleader[] */

    for (i = 0; i < tc_len; ++i)
      if (termcodes[i].name[0] == name[0] && termcodes[i].name[1] == name[1])
      {
          del_termcode_idx(i);
          return;
      }
    /* not found. Give error message? */
}

    static void
del_termcode_idx(idx)
    int           idx;
{
    int           i;

    vim_free(termcodes[idx].code);
    --tc_len;
    for (i = idx; i < tc_len; ++i)
      termcodes[i] = termcodes[i + 1];
}

#ifdef FEAT_TERMRESPONSE
/*
 * Called when detected that the terminal sends 8-bit codes.
 * Convert all 7-bit codes to their 8-bit equivalent.
 */
    static void
switch_to_8bit()
{
    int           i;
    int           c;

    /* Only need to do something when not already using 8-bit codes. */
    if (!term_is_8bit(T_NAME))
    {
      for (i = 0; i < tc_len; ++i)
      {
          c = term_7to8bit(termcodes[i].code);
          if (c != 0)
          {
            mch_memmove(termcodes[i].code + 1, termcodes[i].code + 2,
                                     STRLEN(termcodes[i].code + 1));
            termcodes[i].code[0] = c;
          }
      }
      need_gather = TRUE;           /* need to fill termleader[] */
    }
    detected_8bit = TRUE;
}
#endif

#ifdef CHECK_DOUBLE_CLICK
static linenr_T orig_topline = 0;
# ifdef FEAT_DIFF
static int orig_topfill = 0;
# endif
#endif
#if (defined(FEAT_WINDOWS) && defined(CHECK_DOUBLE_CLICK)) || defined(PROTO)
/*
 * Checking for double clicks ourselves.
 * "orig_topline" is used to avoid detecting a double-click when the window
 * contents scrolled (e.g., when 'scrolloff' is non-zero).
 */
/*
 * Set orig_topline.  Used when jumping to another window, so that a double
 * click still works.
 */
    void
set_mouse_topline(wp)
    win_T   *wp;
{
    orig_topline = wp->w_topline;
# ifdef FEAT_DIFF
    orig_topfill = wp->w_topfill;
# endif
}
#endif

/*
 * Check if typebuf.tb_buf[] contains a terminal key code.
 * Check from typebuf.tb_buf[typebuf.tb_off] to typebuf.tb_buf[typebuf.tb_off
 * + max_offset].
 * Return 0 for no match, -1 for partial match, > 0 for full match.
 * With a match, the match is removed, the replacement code is inserted in
 * typebuf.tb_buf[] and the number of characters in typebuf.tb_buf[] is
 * returned.
 * When "buf" is not NULL, it is used instead of typebuf.tb_buf[]. "buflen" is
 * then the length of the string in buf[].
 */
    int
check_termcode(max_offset, buf, buflen)
    int           max_offset;
    char_u  *buf;
    int           buflen;
{
    char_u  *tp;
    char_u  *p;
    int           slen = 0;   /* init for GCC */
    int           modslen;
    int           len;
    int           offset;
    char_u  key_name[2];
    int           modifiers;
    int           key;
    int           new_slen;
    int           extra;
    char_u  string[MAX_KEY_CODE_LEN + 1];
    int           i, j;
    int           idx = 0;
#ifdef FEAT_MOUSE
# if !defined(UNIX) || defined(FEAT_MOUSE_XTERM) || defined(FEAT_GUI)
    char_u  bytes[6];
    int           num_bytes;
# endif
    int           mouse_code = 0;       /* init for GCC */
    int           is_click, is_drag;
    int           wheel_code = 0;
    int           current_button;
    static int    held_button = MOUSE_RELEASE;
    static int    orig_num_clicks = 1;
    static int    orig_mouse_code = 0x0;
# ifdef CHECK_DOUBLE_CLICK
    static int    orig_mouse_col = 0;
    static int    orig_mouse_row = 0;
    static struct timeval  orig_mouse_time = {0, 0};
                              /* time of previous mouse click */
    struct timeval  mouse_time;           /* time of current mouse click */
    long    timediff;         /* elapsed time in msec */
# endif
#endif
    int           cpo_koffset;
#ifdef FEAT_MOUSE_GPM
    extern int    gpm_flag; /* gpm library variable */
#endif

    cpo_koffset = (vim_strchr(p_cpo, CPO_KOFFSET) != NULL);

    /*
     * Speed up the checks for terminal codes by gathering all first bytes
     * used in termleader[].  Often this is just a single <Esc>.
     */
    if (need_gather)
      gather_termleader();

    /*
     * Check at several positions in typebuf.tb_buf[], to catch something like
     * "x<Up>" that can be mapped. Stop at max_offset, because characters
     * after that cannot be used for mapping, and with @r commands
     * typebuf.tb_buf[]
     * can become very long.
     * This is used often, KEEP IT FAST!
     */
    for (offset = 0; offset < max_offset; ++offset)
    {
      if (buf == NULL)
      {
          if (offset >= typebuf.tb_len)
            break;
          tp = typebuf.tb_buf + typebuf.tb_off + offset;
          len = typebuf.tb_len - offset;  /* length of the input */
      }
      else
      {
          if (offset >= buflen)
            break;
          tp = buf + offset;
          len = buflen - offset;
      }

      /*
       * Don't check characters after K_SPECIAL, those are already
       * translated terminal chars (avoid translating ~@^Hx).
       */
      if (*tp == K_SPECIAL)
      {
          offset += 2;  /* there are always 2 extra characters */
          continue;
      }

      /*
       * Skip this position if the character does not appear as the first
       * character in term_strings. This speeds up a lot, since most
       * termcodes start with the same character (ESC or CSI).
       */
      i = *tp;
      for (p = termleader; *p && *p != i; ++p)
          ;
      if (*p == NUL)
          continue;

      /*
       * Skip this position if p_ek is not set and tp[0] is an ESC and we
       * are in Insert mode.
       */
      if (*tp == ESC && !p_ek && (State & INSERT))
          continue;

      key_name[0] = NUL;      /* no key name found yet */
      key_name[1] = NUL;      /* no key name found yet */
      modifiers = 0;          /* no modifiers yet */

#ifdef FEAT_GUI
      if (gui.in_use)
      {
          /*
           * GUI special key codes are all of the form [CSI xx].
           */
          if (*tp == CSI)         /* Special key from GUI */
          {
            if (len < 3)
                return -1;        /* Shouldn't happen */
            slen = 3;
            key_name[0] = tp[1];
            key_name[1] = tp[2];
          }
      }
      else
#endif /* FEAT_GUI */
      {
          for (idx = 0; idx < tc_len; ++idx)
          {
            /*
             * Ignore the entry if we are not at the start of
             * typebuf.tb_buf[]
             * and there are not enough characters to make a match.
             * But only when the 'K' flag is in 'cpoptions'.
             */
            slen = termcodes[idx].len;
            if (cpo_koffset && offset && len < slen)
                continue;
            if (STRNCMP(termcodes[idx].code, tp,
                             (size_t)(slen > len ? len : slen)) == 0)
            {
                if (len < slen)           /* got a partial sequence */
                  return -1;        /* need to get more chars */

                /*
                 * When found a keypad key, check if there is another key
                 * that matches and use that one.  This makes <Home> to be
                 * found instead of <kHome> when they produce the same
                 * key code.
                 */
                if (termcodes[idx].name[0] == 'K'
                               && VIM_ISDIGIT(termcodes[idx].name[1]))
                {
                  for (j = idx + 1; j < tc_len; ++j)
                      if (termcodes[j].len == slen &&
                            STRNCMP(termcodes[idx].code,
                                  termcodes[j].code, slen) == 0)
                      {
                        idx = j;
                        break;
                      }
                }

                key_name[0] = termcodes[idx].name[0];
                key_name[1] = termcodes[idx].name[1];
                break;
            }

            /*
             * Check for code with modifier, like xterm uses:
             * <Esc>[123;*X  (modslen == slen - 3)
             * Also <Esc>O*X and <M-O>*X (modslen == slen - 2).
             * When there is a modifier the * matches a number.
             * When there is no modifier the ;* or * is omitted.
             */
            if (termcodes[idx].modlen > 0)
            {
                modslen = termcodes[idx].modlen;
                if (cpo_koffset && offset && len < modslen)
                  continue;
                if (STRNCMP(termcodes[idx].code, tp,
                        (size_t)(modslen > len ? len : modslen)) == 0)
                {
                  int       n;

                  if (len <= modslen)     /* got a partial sequence */
                      return -1;          /* need to get more chars */

                  if (tp[modslen] == termcodes[idx].code[slen - 1])
                      slen = modslen + 1; /* no modifiers */
                  else if (tp[modslen] != ';' && modslen == slen - 3)
                      continue;     /* no match */
                  else
                  {
                      /* Skip over the digits, the final char must
                       * follow. */
                      for (j = slen - 2; j < len && isdigit(tp[j]); ++j)
                        ;
                      ++j;
                      if (len < j)  /* got a partial sequence */
                        return -1;  /* need to get more chars */
                      if (tp[j - 1] != termcodes[idx].code[slen - 1])
                        continue;   /* no match */

                      /* Match!  Convert modifier bits. */
                      n = atoi((char *)tp + slen - 2) - 1;
                      if (n & 1)
                        modifiers |= MOD_MASK_SHIFT;
                      if (n & 2)
                        modifiers |= MOD_MASK_ALT;
                      if (n & 4)
                        modifiers |= MOD_MASK_CTRL;
                      if (n & 8)
                        modifiers |= MOD_MASK_META;

                      slen = j;
                  }
                  key_name[0] = termcodes[idx].name[0];
                  key_name[1] = termcodes[idx].name[1];
                  break;
                }
            }
          }
      }

#ifdef FEAT_TERMRESPONSE
      if (key_name[0] == NUL)
      {
          /* Check for xterm version string: "<Esc>[>{x};{vers};{y}c".  Also
           * eat other possible responses to t_RV, rxvt returns
           * "<Esc>[?1;2c".  Also accept CSI instead of <Esc>[.
           * mrxvt has been reported to have "+" in the version. Assume
           * the escape sequence ends with a letter or one of "{|}~". */
          if (*T_CRV != NUL && ((tp[0] == ESC && tp[1] == '[' && len >= 3)
                                     || (tp[0] == CSI && len >= 2)))
          {
            j = 0;
            extra = 0;
            for (i = 2 + (tp[0] != CSI); i < len
                        && !(tp[i] >= '{' && tp[i] <= '~')
                        && !ASCII_ISALPHA(tp[i]); ++i)
                if (tp[i] == ';' && ++j == 1)
                  extra = atoi((char *)tp + i + 1);
            if (i == len)
                return -1;          /* not enough characters */

            /* eat it when at least one digit and ending in 'c' */
            if (i > 2 + (tp[0] != CSI) && tp[i] == 'c')
            {
                crv_status = CRV_GOT;

                /* If this code starts with CSI, you can bet that the
                 * terminal uses 8-bit codes. */
                if (tp[0] == CSI)
                  switch_to_8bit();

                /* rxvt sends its version number: "20703" is 2.7.3.
                 * Ignore it for when the user has set 'term' to xterm,
                 * even though it's an rxvt. */
                if (extra > 20000)
                  extra = 0;

                if (tp[1 + (tp[0] != CSI)] == '>' && j == 2)
                {
                  /* if xterm version >= 95 use mouse dragging */
                  if (extra >= 95)
                      set_option_value((char_u *)"ttym", 0L,
                                           (char_u *)"xterm2", 0);
                  /* if xterm version >= 141 try to get termcap codes */
                  if (extra >= 141)
                  {
                      check_for_codes = TRUE;
                      need_gather = TRUE;
                      req_codes_from_term();
                  }
                }
# ifdef FEAT_EVAL
                set_vim_var_string(VV_TERMRESPONSE, tp, i + 1);
# endif
# ifdef FEAT_AUTOCMD
                apply_autocmds(EVENT_TERMRESPONSE,
                                       NULL, NULL, FALSE, curbuf);
# endif
                key_name[0] = (int)KS_EXTRA;
                key_name[1] = (int)KE_IGNORE;
                slen = i + 1;
            }
          }

          /* Check for '<Esc>P1+r<hex bytes><Esc>\'.  A "0" instead of the
           * "1" means an invalid request. */
          else if (check_for_codes
                && ((tp[0] == ESC && tp[1] == 'P' && len >= 2)
                  || tp[0] == DCS))
          {
            j = 1 + (tp[0] != DCS);
            for (i = j; i < len; ++i)
                if ((tp[i] == ESC && tp[i + 1] == '\\' && i + 1 < len)
                      || tp[i] == STERM)
                {
                  if (i - j >= 3 && tp[j + 1] == '+' && tp[j + 2] == 'r')
                      got_code_from_term(tp + j, i);
                  key_name[0] = (int)KS_EXTRA;
                  key_name[1] = (int)KE_IGNORE;
                  slen = i + 1 + (tp[i] == ESC);
                  break;
                }

            if (i == len)
                return -1;          /* not enough characters */
          }
      }
#endif

      if (key_name[0] == NUL)
          continue;         /* No match at this position, try next one */

      /* We only get here when we have a complete termcode match */

#ifdef FEAT_MOUSE
# ifdef FEAT_GUI
      /*
       * Only in the GUI: Fetch the pointer coordinates of the scroll event
       * so that we know which window to scroll later.
       */
      if (gui.in_use
            && key_name[0] == (int)KS_EXTRA
            && (key_name[1] == (int)KE_X1MOUSE
                || key_name[1] == (int)KE_X2MOUSE
                || key_name[1] == (int)KE_MOUSEDOWN
                || key_name[1] == (int)KE_MOUSEUP))
      {
          num_bytes = get_bytes_from_buf(tp + slen, bytes, 4);
          if (num_bytes == -1)      /* not enough coordinates */
            return -1;
          mouse_col = 128 * (bytes[0] - ' ' - 1) + bytes[1] - ' ' - 1;
          mouse_row = 128 * (bytes[2] - ' ' - 1) + bytes[3] - ' ' - 1;
          slen += num_bytes;
      }
      else
# endif
      /*
       * If it is a mouse click, get the coordinates.
       */
      if (key_name[0] == (int)KS_MOUSE
# ifdef FEAT_MOUSE_JSB
            || key_name[0] == (int)KS_JSBTERM_MOUSE
# endif
# ifdef FEAT_MOUSE_NET
            || key_name[0] == (int)KS_NETTERM_MOUSE
# endif
# ifdef FEAT_MOUSE_DEC
            || key_name[0] == (int)KS_DEC_MOUSE
# endif
# ifdef FEAT_MOUSE_PTERM
            || key_name[0] == (int)KS_PTERM_MOUSE
# endif
            )
      {
          is_click = is_drag = FALSE;

# if !defined(UNIX) || defined(FEAT_MOUSE_XTERM) || defined(FEAT_GUI)
          if (key_name[0] == (int)KS_MOUSE)
          {
            /*
             * For xterm and MSDOS we get "<t_mouse>scr", where
             *  s == encoded button state:
             *       0x20 = left button down
             *       0x21 = middle button down
             *       0x22 = right button down
             *       0x23 = any button release
             *       0x60 = button 4 down (scroll wheel down)
             *       0x61 = button 5 down (scroll wheel up)
             *    add 0x04 for SHIFT
             *    add 0x08 for ALT
             *    add 0x10 for CTRL
             *    add 0x20 for mouse drag (0x40 is drag with left button)
             *  c == column + ' ' + 1 == column + 33
             *  r == row + ' ' + 1 == row + 33
             *
             * The coordinates are passed on through global variables.
             * Ugly, but this avoids trouble with mouse clicks at an
             * unexpected moment and allows for mapping them.
             */
            for (;;)
            {
#ifdef FEAT_GUI
                if (gui.in_use)
                {
                  /* GUI uses more bits for columns > 223 */
                  num_bytes = get_bytes_from_buf(tp + slen, bytes, 5);
                  if (num_bytes == -1)    /* not enough coordinates */
                      return -1;
                  mouse_code = bytes[0];
                  mouse_col = 128 * (bytes[1] - ' ' - 1)
                                           + bytes[2] - ' ' - 1;
                  mouse_row = 128 * (bytes[3] - ' ' - 1)
                                           + bytes[4] - ' ' - 1;
                }
                else
#endif
                {
                  num_bytes = get_bytes_from_buf(tp + slen, bytes, 3);
                  if (num_bytes == -1)    /* not enough coordinates */
                      return -1;
                  mouse_code = bytes[0];
                  mouse_col = bytes[1] - ' ' - 1;
                  mouse_row = bytes[2] - ' ' - 1;
                }
                slen += num_bytes;

                /* If the following bytes is also a mouse code and it has
                 * the same code, dump this one and get the next.  This
                 * makes dragging a whole lot faster. */
#ifdef FEAT_GUI
                if (gui.in_use)
                  j = 3;
                else
#endif
                  j = termcodes[idx].len;
                if (STRNCMP(tp, tp + slen, (size_t)j) == 0
                      && tp[slen + j] == mouse_code
                      && tp[slen + j + 1] != NUL
                      && tp[slen + j + 2] != NUL
#ifdef FEAT_GUI
                      && (!gui.in_use
                        || (tp[slen + j + 3] != NUL
                              && tp[slen + j + 4] != NUL))
#endif
                      )
                  slen += j;
                else
                  break;
            }

#  if !defined(MSWIN) && !defined(MSDOS)
            /*
             * Handle mouse events.
             * Recognize the xterm mouse wheel, but not in the GUI, the
             * Linux console with GPM and the MS-DOS or Win32 console
             * (multi-clicks use >= 0x60).
             */
            if (mouse_code >= MOUSEWHEEL_LOW
#   ifdef FEAT_GUI
                  && !gui.in_use
#   endif
#   ifdef FEAT_MOUSE_GPM
                  && gpm_flag == 0
#   endif
                  )
            {
                /* Keep the mouse_code before it's changed, so that we
                 * remember that it was a mouse wheel click. */
                wheel_code = mouse_code;
            }
#   ifdef FEAT_MOUSE_XTERM
            else if (held_button == MOUSE_RELEASE
#    ifdef FEAT_GUI
                  && !gui.in_use
#    endif
                  && (mouse_code == 0x23 || mouse_code == 0x24))
            {
                /* Apparently used by rxvt scroll wheel. */
                wheel_code = mouse_code - 0x23 + MOUSEWHEEL_LOW;
            }
#   endif

#   if defined(UNIX) && defined(FEAT_MOUSE_TTY)
            else if (use_xterm_mouse() > 1)
            {
                if (mouse_code & MOUSE_DRAG_XTERM)
                  mouse_code |= MOUSE_DRAG;
            }
#   endif
#   ifdef FEAT_XCLIPBOARD
            else if (!(mouse_code & MOUSE_DRAG & ~MOUSE_CLICK_MASK))
            {
                if ((mouse_code & MOUSE_RELEASE) == MOUSE_RELEASE)
                  stop_xterm_trace();
                else
                  start_xterm_trace(mouse_code);
            }
#   endif
#  endif
          }
# endif /* !UNIX || FEAT_MOUSE_XTERM */
# ifdef FEAT_MOUSE_NET
          if (key_name[0] == (int)KS_NETTERM_MOUSE)
          {
            int mc, mr;

            /* expect a rather limited sequence like: balancing {
             * \033}6,45\r
             * '6' is the row, 45 is the column
             */
            p = tp + slen;
            mr = getdigits(&p);
            if (*p++ != ',')
                return -1;
            mc = getdigits(&p);
            if (*p++ != '\r')
                return -1;

            mouse_col = mc - 1;
            mouse_row = mr - 1;
            mouse_code = MOUSE_LEFT;
            slen += (int)(p - (tp + slen));
          }
# endif     /* FEAT_MOUSE_NET */
# ifdef FEAT_MOUSE_JSB
          if (key_name[0] == (int)KS_JSBTERM_MOUSE)
          {
            int mult, val, iter, button, status;

            /* JSBTERM Input Model
             * \033[0~zw uniq escape sequence
             * (L-x)  Left button pressed - not pressed x not reporting
             * (M-x)  Middle button pressed - not pressed x not reporting
             * (R-x)  Right button pressed - not pressed x not reporting
             * (SDmdu)  Single , Double click, m mouse move d button down
             *                                     u button up
             *  ###   X cursor position padded to 3 digits
             *  ###   Y cursor position padded to 3 digits
             * (s-x)  SHIFT key pressed - not pressed x not reporting
             * (c-x)  CTRL key pressed - not pressed x not reporting
             * \033\\ terminateing sequence
             */

            p = tp + slen;
            button = mouse_code = 0;
            switch (*p++)
            {
                case 'L': button = 1; break;
                case '-': break;
                case 'x': break; /* ignore sequence */
                default:  return -1; /* Unknown Result */
            }
            switch (*p++)
            {
                case 'M': button |= 2; break;
                case '-': break;
                case 'x': break; /* ignore sequence */
                default:  return -1; /* Unknown Result */
            }
            switch (*p++)
            {
                case 'R': button |= 4; break;
                case '-': break;
                case 'x': break; /* ignore sequence */
                default:  return -1; /* Unknown Result */
            }
            status = *p++;
            for (val = 0, mult = 100, iter = 0; iter < 3; iter++,
                                                mult /= 10, p++)
                if (*p >= '0' && *p <= '9')
                  val += (*p - '0') * mult;
                else
                  return -1;
            mouse_col = val;
            for (val = 0, mult = 100, iter = 0; iter < 3; iter++,
                                                mult /= 10, p++)
                if (*p >= '0' && *p <= '9')
                  val += (*p - '0') * mult;
                else
                  return -1;
            mouse_row = val;
            switch (*p++)
            {
                case 's': button |= 8; break;  /* SHIFT key Pressed */
                case '-': break;  /* Not Pressed */
                case 'x': break;  /* Not Reporting */
                default:  return -1; /* Unknown Result */
            }
            switch (*p++)
            {
                case 'c': button |= 16; break;  /* CTRL key Pressed */
                case '-': break;  /* Not Pressed */
                case 'x': break;  /* Not Reporting */
                default:  return -1; /* Unknown Result */
            }
            if (*p++ != '\033')
                return -1;
            if (*p++ != '\\')
                return -1;
            switch (status)
            {
                case 'D': /* Double Click */
                case 'S': /* Single Click */
                  if (button & 1) mouse_code |= MOUSE_LEFT;
                  if (button & 2) mouse_code |= MOUSE_MIDDLE;
                  if (button & 4) mouse_code |= MOUSE_RIGHT;
                  if (button & 8) mouse_code |= MOUSE_SHIFT;
                  if (button & 16) mouse_code |= MOUSE_CTRL;
                  break;
                case 'm': /* Mouse move */
                  if (button & 1) mouse_code |= MOUSE_LEFT;
                  if (button & 2) mouse_code |= MOUSE_MIDDLE;
                  if (button & 4) mouse_code |= MOUSE_RIGHT;
                  if (button & 8) mouse_code |= MOUSE_SHIFT;
                  if (button & 16) mouse_code |= MOUSE_CTRL;
                  if ((button & 7) != 0)
                  {
                      held_button = mouse_code;
                      mouse_code |= MOUSE_DRAG;
                  }
                  is_drag = TRUE;
                  showmode();
                  break;
                case 'd': /* Button Down */
                  if (button & 1) mouse_code |= MOUSE_LEFT;
                  if (button & 2) mouse_code |= MOUSE_MIDDLE;
                  if (button & 4) mouse_code |= MOUSE_RIGHT;
                  if (button & 8) mouse_code |= MOUSE_SHIFT;
                  if (button & 16) mouse_code |= MOUSE_CTRL;
                  break;
                case 'u': /* Button Up */
                  if (button & 1)
                      mouse_code |= MOUSE_LEFT | MOUSE_RELEASE;
                  if (button & 2)
                      mouse_code |= MOUSE_MIDDLE | MOUSE_RELEASE;
                  if (button & 4)
                      mouse_code |= MOUSE_RIGHT | MOUSE_RELEASE;
                  if (button & 8)
                      mouse_code |= MOUSE_SHIFT;
                  if (button & 16)
                      mouse_code |= MOUSE_CTRL;
                  break;
                default: return -1; /* Unknown Result */
            }

            slen += (p - (tp + slen));
          }
# endif /* FEAT_MOUSE_JSB */
# ifdef FEAT_MOUSE_DEC
          if (key_name[0] == (int)KS_DEC_MOUSE)
          {
             /* The DEC Locator Input Model
            * Netterm delivers the code sequence:
            *  \033[2;4;24;80&w  (left button down)
            *  \033[3;0;24;80&w  (left button up)
            *  \033[6;1;24;80&w  (right button down)
            *  \033[7;0;24;80&w  (right button up)
            * CSI Pe ; Pb ; Pr ; Pc ; Pp & w
            * Pe is the event code
            * Pb is the button code
            * Pr is the row coordinate
            * Pc is the column coordinate
            * Pp is the third coordinate (page number)
            * Pe, the event code indicates what event caused this report
            *    The following event codes are defined:
            *    0 - request, the terminal received an explicit request
            *      for a locator report, but the locator is unavailable
            *    1 - request, the terminal received an explicit request
            *      for a locator report
            *    2 - left button down
            *    3 - left button up
            *    4 - middle button down
            *    5 - middle button up
            *    6 - right button down
            *    7 - right button up
            *    8 - fourth button down
            *    9 - fourth button up
            *    10 - locator outside filter rectangle
            * Pb, the button code, ASCII decimal 0-15 indicating which
            *   buttons are down if any. The state of the four buttons
            *   on the locator correspond to the low four bits of the
            *   decimal value,
            *   "1" means button depressed
            *   0 - no buttons down,
            *   1 - right,
            *   2 - middle,
            *   4 - left,
            *   8 - fourth
            * Pr is the row coordinate of the locator position in the page,
            *   encoded as an ASCII decimal value.
            *   If Pr is omitted, the locator position is undefined
            *   (outside the terminal window for example).
            * Pc is the column coordinate of the locator position in the
            *   page, encoded as an ASCII decimal value.
            *   If Pc is omitted, the locator position is undefined
            *   (outside the terminal window for example).
            * Pp is the page coordinate of the locator position
            *   encoded as an ASCII decimal value.
            *   The page coordinate may be omitted if the locator is on
            *   page one (the default).  We ignore it anyway.
            */
            int Pe, Pb, Pr, Pc;

            p = tp + slen;

            /* get event status */
            Pe = getdigits(&p);
            if (*p++ != ';')
                return -1;

            /* get button status */
            Pb = getdigits(&p);
            if (*p++ != ';')
                return -1;

            /* get row status */
            Pr = getdigits(&p);
            if (*p++ != ';')
                return -1;

            /* get column status */
            Pc = getdigits(&p);

            /* the page parameter is optional */
            if (*p == ';')
            {
                p++;
                (void)getdigits(&p);
            }
            if (*p++ != '&')
                return -1;
            if (*p++ != 'w')
                return -1;

            mouse_code = 0;
            switch (Pe)
            {
            case  0: return -1; /* position request while unavailable */
            case  1: /* a response to a locator position request includes
                      the status of all buttons */
                   Pb &= 7;   /* mask off and ignore fourth button */
                   if (Pb & 4)
                       mouse_code  = MOUSE_LEFT;
                   if (Pb & 2)
                       mouse_code  = MOUSE_MIDDLE;
                   if (Pb & 1)
                       mouse_code  = MOUSE_RIGHT;
                   if (Pb)
                   {
                       held_button = mouse_code;
                       mouse_code |= MOUSE_DRAG;
                       WantQueryMouse = TRUE;
                   }
                   is_drag = TRUE;
                   showmode();
                   break;
            case  2: mouse_code = MOUSE_LEFT;
                   WantQueryMouse = TRUE;
                   break;
            case  3: mouse_code = MOUSE_RELEASE | MOUSE_LEFT;
                   break;
            case  4: mouse_code = MOUSE_MIDDLE;
                   WantQueryMouse = TRUE;
                   break;
            case  5: mouse_code = MOUSE_RELEASE | MOUSE_MIDDLE;
                   break;
            case  6: mouse_code = MOUSE_RIGHT;
                   WantQueryMouse = TRUE;
                   break;
            case  7: mouse_code = MOUSE_RELEASE | MOUSE_RIGHT;
                   break;
            case  8: return -1; /* fourth button down */
            case  9: return -1; /* fourth button up */
            case 10: return -1; /* mouse outside of filter rectangle */
            default: return -1; /* should never occur */
            }

            mouse_col = Pc - 1;
            mouse_row = Pr - 1;

            slen += (int)(p - (tp + slen));
          }
# endif /* FEAT_MOUSE_DEC */
# ifdef FEAT_MOUSE_PTERM
          if (key_name[0] == (int)KS_PTERM_MOUSE)
          {
            int button, num_clicks, action, mc, mr;

            p = tp + slen;

            action = getdigits(&p);
            if (*p++ != ';')
                return -1;

            mouse_row = getdigits(&p);
            if (*p++ != ';')
                return -1;
            mouse_col = getdigits(&p);
            if (*p++ != ';')
                return -1;

            button = getdigits(&p);
            mouse_code = 0;

            switch( button )
            {
                case 4: mouse_code = MOUSE_LEFT; break;
                case 1: mouse_code = MOUSE_RIGHT; break;
                case 2: mouse_code = MOUSE_MIDDLE; break;
                default: return -1;
            }

            switch( action )
            {
                case 31: /* Initial press */
                  if (*p++ != ';')
                      return -1;

                  num_clicks = getdigits(&p); /* Not used */
                  break;

                case 32: /* Release */
                  mouse_code |= MOUSE_RELEASE;
                  break;

                case 33: /* Drag */
                  held_button = mouse_code;
                  mouse_code |= MOUSE_DRAG;
                  break;

                default:
                  return -1;
            }

            if (*p++ != 't')
                return -1;

            slen += (p - (tp + slen));
          }
# endif /* FEAT_MOUSE_PTERM */

          /* Interpret the mouse code */
          current_button = (mouse_code & MOUSE_CLICK_MASK);
          if (current_button == MOUSE_RELEASE
# ifdef FEAT_MOUSE_XTERM
                && wheel_code == 0
# endif
                )
          {
            /*
             * If we get a mouse drag or release event when
             * there is no mouse button held down (held_button ==
             * MOUSE_RELEASE), produce a K_IGNORE below.
             * (can happen when you hold down two buttons
             * and then let them go, or click in the menu bar, but not
             * on a menu, and drag into the text).
             */
            if ((mouse_code & MOUSE_DRAG) == MOUSE_DRAG)
                is_drag = TRUE;
            current_button = held_button;
          }
          else if (wheel_code == 0)
          {
# ifdef CHECK_DOUBLE_CLICK
#  ifdef FEAT_MOUSE_GPM
#   ifdef FEAT_GUI
            /*
             * Only for Unix, when GUI or gpm is not active, we handle
             * multi-clicks here.
             */
            if (gpm_flag == 0 && !gui.in_use)
#   else
            if (gpm_flag == 0)
#   endif
#  else
#   ifdef FEAT_GUI
            if (!gui.in_use)
#   endif
#  endif
            {
                /*
                 * Compute the time elapsed since the previous mouse click.
                 */
                gettimeofday(&mouse_time, NULL);
                timediff = (mouse_time.tv_usec
                                  - orig_mouse_time.tv_usec) / 1000;
                if (timediff < 0)
                  --orig_mouse_time.tv_sec;
                timediff += (mouse_time.tv_sec
                                   - orig_mouse_time.tv_sec) * 1000;
                orig_mouse_time = mouse_time;
                if (mouse_code == orig_mouse_code
                      && timediff < p_mouset
                      && orig_num_clicks != 4
                      && orig_mouse_col == mouse_col
                      && orig_mouse_row == mouse_row
                      && ((orig_topline == curwin->w_topline
#ifdef FEAT_DIFF
                            && orig_topfill == curwin->w_topfill
#endif
                        )
#ifdef FEAT_WINDOWS
                        /* Double click in tab pages line also works
                         * when window contents changes. */
                        || (mouse_row == 0 && firstwin->w_winrow > 0)
#endif
                         )
                      )
                  ++orig_num_clicks;
                else
                  orig_num_clicks = 1;
                orig_mouse_col = mouse_col;
                orig_mouse_row = mouse_row;
                orig_topline = curwin->w_topline;
#ifdef FEAT_DIFF
                orig_topfill = curwin->w_topfill;
#endif
            }
#  if defined(FEAT_GUI) || defined(FEAT_MOUSE_GPM)
            else
                orig_num_clicks = NUM_MOUSE_CLICKS(mouse_code);
#  endif
# else
            orig_num_clicks = NUM_MOUSE_CLICKS(mouse_code);
# endif
            is_click = TRUE;
            orig_mouse_code = mouse_code;
          }
          if (!is_drag)
            held_button = mouse_code & MOUSE_CLICK_MASK;

          /*
           * Translate the actual mouse event into a pseudo mouse event.
           * First work out what modifiers are to be used.
           */
          if (orig_mouse_code & MOUSE_SHIFT)
            modifiers |= MOD_MASK_SHIFT;
          if (orig_mouse_code & MOUSE_CTRL)
            modifiers |= MOD_MASK_CTRL;
          if (orig_mouse_code & MOUSE_ALT)
            modifiers |= MOD_MASK_ALT;
          if (orig_num_clicks == 2)
            modifiers |= MOD_MASK_2CLICK;
          else if (orig_num_clicks == 3)
            modifiers |= MOD_MASK_3CLICK;
          else if (orig_num_clicks == 4)
            modifiers |= MOD_MASK_4CLICK;

          /* Work out our pseudo mouse event */
          key_name[0] = (int)KS_EXTRA;
          if (wheel_code != 0)
            key_name[1] = (wheel_code & 1)
                              ? (int)KE_MOUSEUP : (int)KE_MOUSEDOWN;
          else
            key_name[1] = get_pseudo_mouse_code(current_button,
                                             is_click, is_drag);
      }
#endif /* FEAT_MOUSE */

#ifdef FEAT_GUI
      /*
       * If using the GUI, then we get menu and scrollbar events.
       *
       * A menu event is encoded as K_SPECIAL, KS_MENU, KE_FILLER followed by
       * four bytes which are to be taken as a pointer to the vimmenu_T
       * structure.
       *
       * A tab line event is encoded as K_SPECIAL KS_TABLINE nr, where "nr"
       * is one byte with the tab index.
       *
       * A scrollbar event is K_SPECIAL, KS_VER_SCROLLBAR, KE_FILLER followed
       * by one byte representing the scrollbar number, and then four bytes
       * representing a long_u which is the new value of the scrollbar.
       *
       * A horizontal scrollbar event is K_SPECIAL, KS_HOR_SCROLLBAR,
       * KE_FILLER followed by four bytes representing a long_u which is the
       * new value of the scrollbar.
       */
# ifdef FEAT_MENU
      else if (key_name[0] == (int)KS_MENU)
      {
          long_u  val;

          num_bytes = get_long_from_buf(tp + slen, &val);
          if (num_bytes == -1)
            return -1;
          current_menu = (vimmenu_T *)val;
          slen += num_bytes;

          /* The menu may have been deleted right after it was used, check
           * for that. */
          if (check_menu_pointer(root_menu, current_menu) == FAIL)
          {
            key_name[0] = KS_EXTRA;
            key_name[1] = (int)KE_IGNORE;
          }
      }
# endif
# ifdef FEAT_GUI_TABLINE
      else if (key_name[0] == (int)KS_TABLINE)
      {
          /* Selecting tabline tab or using its menu. */
          num_bytes = get_bytes_from_buf(tp + slen, bytes, 1);
          if (num_bytes == -1)
            return -1;
          current_tab = (int)bytes[0];
          if (current_tab == 255)   /* -1 in a byte gives 255 */
            current_tab = -1;
          slen += num_bytes;
      }
      else if (key_name[0] == (int)KS_TABMENU)
      {
          /* Selecting tabline tab or using its menu. */
          num_bytes = get_bytes_from_buf(tp + slen, bytes, 2);
          if (num_bytes == -1)
            return -1;
          current_tab = (int)bytes[0];
          current_tabmenu = (int)bytes[1];
          slen += num_bytes;
      }
# endif
# ifndef USE_ON_FLY_SCROLL
      else if (key_name[0] == (int)KS_VER_SCROLLBAR)
      {
          long_u  val;

          /* Get the last scrollbar event in the queue of the same type */
          j = 0;
          for (i = 0; tp[j] == CSI && tp[j + 1] == KS_VER_SCROLLBAR
                                         && tp[j + 2] != NUL; ++i)
          {
            j += 3;
            num_bytes = get_bytes_from_buf(tp + j, bytes, 1);
            if (num_bytes == -1)
                break;
            if (i == 0)
                current_scrollbar = (int)bytes[0];
            else if (current_scrollbar != (int)bytes[0])
                break;
            j += num_bytes;
            num_bytes = get_long_from_buf(tp + j, &val);
            if (num_bytes == -1)
                break;
            scrollbar_value = val;
            j += num_bytes;
            slen = j;
          }
          if (i == 0)         /* not enough characters to make one */
            return -1;
      }
      else if (key_name[0] == (int)KS_HOR_SCROLLBAR)
      {
          long_u  val;

          /* Get the last horiz. scrollbar event in the queue */
          j = 0;
          for (i = 0; tp[j] == CSI && tp[j + 1] == KS_HOR_SCROLLBAR
                                         && tp[j + 2] != NUL; ++i)
          {
            j += 3;
            num_bytes = get_long_from_buf(tp + j, &val);
            if (num_bytes == -1)
                break;
            scrollbar_value = val;
            j += num_bytes;
            slen = j;
          }
          if (i == 0)         /* not enough characters to make one */
            return -1;
      }
# endif /* !USE_ON_FLY_SCROLL */
#endif /* FEAT_GUI */

      /*
       * Change <xHome> to <Home>, <xUp> to <Up>, etc.
       */
      key = handle_x_keys(TERMCAP2KEY(key_name[0], key_name[1]));

      /*
       * Add any modifier codes to our string.
       */
      new_slen = 0;           /* Length of what will replace the termcode */
      if (modifiers != 0)
      {
          /* Some keys have the modifier included.  Need to handle that here
           * to make mappings work. */
          key = simplify_key(key, &modifiers);
          if (modifiers != 0)
          {
            string[new_slen++] = K_SPECIAL;
            string[new_slen++] = (int)KS_MODIFIER;
            string[new_slen++] = modifiers;
          }
      }

      /* Finally, add the special key code to our string */
      key_name[0] = KEY2TERMCAP0(key);
      key_name[1] = KEY2TERMCAP1(key);
      if (key_name[0] == KS_KEY)
          string[new_slen++] = key_name[1];     /* from ":set <M-b>=xx" */
      else
      {
          string[new_slen++] = K_SPECIAL;
          string[new_slen++] = key_name[0];
          string[new_slen++] = key_name[1];
      }
      string[new_slen] = NUL;
      extra = new_slen - slen;
      if (buf == NULL)
      {
          if (extra < 0)
            /* remove matched chars, taking care of noremap */
            del_typebuf(-extra, offset);
          else if (extra > 0)
            /* insert the extra space we need */
            ins_typebuf(string + slen, REMAP_YES, offset, FALSE, FALSE);

          /*
           * Careful: del_typebuf() and ins_typebuf() may have reallocated
           * typebuf.tb_buf[]!
           */
          mch_memmove(typebuf.tb_buf + typebuf.tb_off + offset, string,
                                              (size_t)new_slen);
      }
      else
      {
          if (extra < 0)
            /* remove matched characters */
            mch_memmove(buf + offset, buf + offset - extra,
                                 (size_t)(buflen + offset + extra));
          else if (extra > 0)
            /* insert the extra space we need */
            mch_memmove(buf + offset + extra, buf + offset,
                                       (size_t)(buflen - offset));
          mch_memmove(buf + offset, string, (size_t)new_slen);
      }
      return (len + extra + offset);
    }

    return 0;                     /* no match found */
}

/*
 * Replace any terminal code strings in from[] with the equivalent internal
 * vim representation.  This is used for the "from" and "to" part of a
 * mapping, and the "to" part of a menu command.
 * Any strings like "<C-UP>" are also replaced, unless 'cpoptions' contains
 * '<'.
 * K_SPECIAL by itself is replaced by K_SPECIAL KS_SPECIAL KE_FILLER.
 *
 * The replacement is done in result[] and finally copied into allocated
 * memory. If this all works well *bufp is set to the allocated memory and a
 * pointer to it is returned. If something fails *bufp is set to NULL and from
 * is returned.
 *
 * CTRL-V characters are removed.  When "from_part" is TRUE, a trailing CTRL-V
 * is included, otherwise it is removed (for ":map xx ^V", maps xx to
 * nothing).  When 'cpoptions' does not contain 'B', a backslash can be used
 * instead of a CTRL-V.
 */
    char_u *
replace_termcodes(from, bufp, from_part, do_lt, special)
    char_u  *from;
    char_u  **bufp;
    int           from_part;
    int           do_lt;            /* also translate <lt> */
    int           special;    /* always accept <key> notation */
{
    int           i;
    int           slen;
    int           key;
    int           dlen = 0;
    char_u  *src;
    int           do_backslash;     /* backslash is a special character */
    int           do_special; /* recognize <> key codes */
    int           do_key_code;      /* recognize raw key codes */
    char_u  *result;    /* buffer for resulting string */

    do_backslash = (vim_strchr(p_cpo, CPO_BSLASH) == NULL);
    do_special = (vim_strchr(p_cpo, CPO_SPECI) == NULL) || special;
    do_key_code = (vim_strchr(p_cpo, CPO_KEYCODE) == NULL);

    /*
     * Allocate space for the translation.  Worst case a single character is
     * replaced by 6 bytes (shifted special key), plus a NUL at the end.
     */
    result = alloc((unsigned)STRLEN(from) * 6 + 1);
    if (result == NULL)       /* out of memory */
    {
      *bufp = NULL;
      return from;
    }

    src = from;

    /*
     * Check for #n at start only: function key n
     */
    if (from_part && src[0] == '#' && VIM_ISDIGIT(src[1]))  /* function key */
    {
      result[dlen++] = K_SPECIAL;
      result[dlen++] = 'k';
      if (src[1] == '0')
          result[dlen++] = ';';     /* #0 is F10 is "k;" */
      else
          result[dlen++] = src[1];  /* #3 is F3 is "k3" */
      src += 2;
    }

    /*
     * Copy each byte from *from to result[dlen]
     */
    while (*src != NUL)
    {
      /*
       * If 'cpoptions' does not contain '<', check for special key codes,
       * like "<C-S-MouseLeft>"
       */
      if (do_special && (do_lt || STRNCMP(src, "<lt>", 4) != 0))
      {
#ifdef FEAT_EVAL
          /*
           * Replace <SID> by K_SNR <script-nr> _.
           * (room: 5 * 6 = 30 bytes; needed: 3 + <nr> + 1 <= 14)
           */
          if (STRNICMP(src, "<SID>", 5) == 0)
          {
            if (current_SID <= 0)
                EMSG(_(e_usingsid));
            else
            {
                src += 5;
                result[dlen++] = K_SPECIAL;
                result[dlen++] = (int)KS_EXTRA;
                result[dlen++] = (int)KE_SNR;
                sprintf((char *)result + dlen, "%ld", (long)current_SID);
                dlen += (int)STRLEN(result + dlen);
                result[dlen++] = '_';
                continue;
            }
          }
#endif

          slen = trans_special(&src, result + dlen, TRUE);
          if (slen)
          {
            dlen += slen;
            continue;
          }
      }

      /*
       * If 'cpoptions' does not contain 'k', see if it's an actual key-code.
       * Note that this is also checked after replacing the <> form.
       * Single character codes are NOT replaced (e.g. ^H or DEL), because
       * it could be a character in the file.
       */
      if (do_key_code)
      {
          i = find_term_bykeys(src);
          if (i >= 0)
          {
            result[dlen++] = K_SPECIAL;
            result[dlen++] = termcodes[i].name[0];
            result[dlen++] = termcodes[i].name[1];
            src += termcodes[i].len;
            /* If terminal code matched, continue after it. */
            continue;
          }
      }

#ifdef FEAT_EVAL
      if (do_special)
      {
          char_u  *p, *s, len;

          /*
           * Replace <Leader> by the value of "mapleader".
           * Replace <LocalLeader> by the value of "maplocalleader".
           * If "mapleader" or "maplocalleader" isn't set use a backslash.
           */
          if (STRNICMP(src, "<Leader>", 8) == 0)
          {
            len = 8;
            p = get_var_value((char_u *)"g:mapleader");
          }
          else if (STRNICMP(src, "<LocalLeader>", 13) == 0)
          {
            len = 13;
            p = get_var_value((char_u *)"g:maplocalleader");
          }
          else
          {
            len = 0;
            p = NULL;
          }
          if (len != 0)
          {
            /* Allow up to 8 * 6 characters for "mapleader". */
            if (p == NULL || *p == NUL || STRLEN(p) > 8 * 6)
                s = (char_u *)"\\";
            else
                s = p;
            while (*s != NUL)
                result[dlen++] = *s++;
            src += len;
            continue;
          }
      }
#endif

      /*
       * Remove CTRL-V and ignore the next character.
       * For "from" side the CTRL-V at the end is included, for the "to"
       * part it is removed.
       * If 'cpoptions' does not contain 'B', also accept a backslash.
       */
      key = *src;
      if (key == Ctrl_V || (do_backslash && key == '\\'))
      {
          ++src;                    /* skip CTRL-V or backslash */
          if (*src == NUL)
          {
            if (from_part)
                result[dlen++] = key;
            break;
          }
      }

#ifdef FEAT_MBYTE
      /* skip multibyte char correctly */
      for (i = (*mb_ptr2len)(src); i > 0; --i)
#endif
      {
          /*
           * If the character is K_SPECIAL, replace it with K_SPECIAL
           * KS_SPECIAL KE_FILLER.
           * If compiled with the GUI replace CSI with K_CSI.
           */
          if (*src == K_SPECIAL)
          {
            result[dlen++] = K_SPECIAL;
            result[dlen++] = KS_SPECIAL;
            result[dlen++] = KE_FILLER;
          }
# ifdef FEAT_GUI
          else if (*src == CSI)
          {
            result[dlen++] = K_SPECIAL;
            result[dlen++] = KS_EXTRA;
            result[dlen++] = (int)KE_CSI;
          }
# endif
          else
            result[dlen++] = *src;
          ++src;
      }
    }
    result[dlen] = NUL;

    /*
     * Copy the new string to allocated memory.
     * If this fails, just return from.
     */
    if ((*bufp = vim_strsave(result)) != NULL)
      from = *bufp;
    vim_free(result);
    return from;
}

/*
 * Find a termcode with keys 'src' (must be NUL terminated).
 * Return the index in termcodes[], or -1 if not found.
 */
    int
find_term_bykeys(src)
    char_u  *src;
{
    int           i;
    int           slen;

    for (i = 0; i < tc_len; ++i)
    {
      slen = termcodes[i].len;
      if (slen > 1 && STRNCMP(termcodes[i].code, src, (size_t)slen) == 0)
          return i;
    }
    return -1;
}

/*
 * Gather the first characters in the terminal key codes into a string.
 * Used to speed up check_termcode().
 */
    static void
gather_termleader()
{
    int         i;
    int         len = 0;

#ifdef FEAT_GUI
    if (gui.in_use)
      termleader[len++] = CSI;    /* the GUI codes are not in termcodes[] */
#endif
#ifdef FEAT_TERMRESPONSE
    if (check_for_codes)
      termleader[len++] = DCS;    /* the termcode response starts with DCS
                               in 8-bit mode */
#endif
    termleader[len] = NUL;

    for (i = 0; i < tc_len; ++i)
      if (vim_strchr(termleader, termcodes[i].code[0]) == NULL)
      {
          termleader[len++] = termcodes[i].code[0];
          termleader[len] = NUL;
      }

    need_gather = FALSE;
}

/*
 * Show all termcodes (for ":set termcap")
 * This code looks a lot like showoptions(), but is different.
 */
    void
show_termcodes()
{
    int           col;
    int           *items;
    int           item_count;
    int           run;
    int           row, rows;
    int           cols;
    int           i;
    int           len;

#define INC3 27       /* try to make three columns */
#define INC2 40       /* try to make two columns */
#define GAP 2         /* spaces between columns */

    if (tc_len == 0)        /* no terminal codes (must be GUI) */
      return;
    items = (int *)alloc((unsigned)(sizeof(int) * tc_len));
    if (items == NULL)
      return;

    /* Highlight title */
    MSG_PUTS_TITLE(_("\n--- Terminal keys ---"));

    /*
     * do the loop two times:
     * 1. display the short items (non-strings and short strings)
     * 2. display the medium items (medium length strings)
     * 3. display the long items (remaining strings)
     */
    for (run = 1; run <= 3 && !got_int; ++run)
    {
      /*
       * collect the items in items[]
       */
      item_count = 0;
      for (i = 0; i < tc_len; i++)
      {
          len = show_one_termcode(termcodes[i].name,
                                        termcodes[i].code, FALSE);
          if (len <= INC3 - GAP ? run == 1
                  : len <= INC2 - GAP ? run == 2
                  : run == 3)
            items[item_count++] = i;
      }

      /*
       * display the items
       */
      if (run <= 2)
      {
          cols = (Columns + GAP) / (run == 1 ? INC3 : INC2);
          if (cols == 0)
            cols = 1;
          rows = (item_count + cols - 1) / cols;
      }
      else  /* run == 3 */
          rows = item_count;
      for (row = 0; row < rows && !got_int; ++row)
      {
          msg_putchar('\n');              /* go to next line */
          if (got_int)              /* 'q' typed in more */
            break;
          col = 0;
          for (i = row; i < item_count; i += rows)
          {
            msg_col = col;                /* make columns */
            show_one_termcode(termcodes[items[i]].name,
                                    termcodes[items[i]].code, TRUE);
            if (run == 2)
                col += INC2;
            else
                col += INC3;
          }
          out_flush();
          ui_breakcheck();
      }
    }
    vim_free(items);
}

/*
 * Show one termcode entry.
 * Output goes into IObuff[]
 */
    int
show_one_termcode(name, code, printit)
    char_u  *name;
    char_u  *code;
    int         printit;
{
    char_u  *p;
    int           len;

    if (name[0] > '~')
    {
      IObuff[0] = ' ';
      IObuff[1] = ' ';
      IObuff[2] = ' ';
      IObuff[3] = ' ';
    }
    else
    {
      IObuff[0] = 't';
      IObuff[1] = '_';
      IObuff[2] = name[0];
      IObuff[3] = name[1];
    }
    IObuff[4] = ' ';

    p = get_special_key_name(TERMCAP2KEY(name[0], name[1]), 0);
    if (p[1] != 't')
      STRCPY(IObuff + 5, p);
    else
      IObuff[5] = NUL;
    len = (int)STRLEN(IObuff);
    do
      IObuff[len++] = ' ';
    while (len < 17);
    IObuff[len] = NUL;
    if (code == NULL)
      len += 4;
    else
      len += vim_strsize(code);

    if (printit)
    {
      msg_puts(IObuff);
      if (code == NULL)
          msg_puts((char_u *)"NULL");
      else
          msg_outtrans(code);
    }
    return len;
}

#if defined(FEAT_TERMRESPONSE) || defined(PROTO)
/*
 * For Xterm >= 140 compiled with OPT_TCAP_QUERY: Obtain the actually used
 * termcap codes from the terminal itself.
 * We get them one by one to avoid a very long response string.
 */
static int xt_index_in = 0;
static int xt_index_out = 0;

    static void
req_codes_from_term()
{
    xt_index_out = 0;
    xt_index_in = 0;
    req_more_codes_from_term();
}

    static void
req_more_codes_from_term()
{
    char    buf[11];
    int           old_idx = xt_index_out;

    /* Don't do anything when going to exit. */
    if (exiting)
      return;

    /* Send up to 10 more requests out than we received.  Avoid sending too
     * many, there can be a buffer overflow somewhere. */
    while (xt_index_out < xt_index_in + 10 && key_names[xt_index_out] != NULL)
    {
      sprintf(buf, "\033P+q%02x%02x\033\\",
                  key_names[xt_index_out][0], key_names[xt_index_out][1]);
      out_str_nf((char_u *)buf);
      ++xt_index_out;
    }

    /* Send the codes out right away. */
    if (xt_index_out != old_idx)
      out_flush();
}

/*
 * Decode key code response from xterm: '<Esc>P1+r<name>=<string><Esc>\'.
 * A "0" instead of the "1" indicates a code that isn't supported.
 * Both <name> and <string> are encoded in hex.
 * "code" points to the "0" or "1".
 */
    static void
got_code_from_term(code, len)
    char_u  *code;
    int           len;
{
#define XT_LEN 100
    char_u  name[3];
    char_u  str[XT_LEN];
    int           i;
    int           j = 0;
    int           c;

    /* A '1' means the code is supported, a '0' means it isn't.
     * When half the length is > XT_LEN we can't use it.
     * Our names are currently all 2 characters. */
    if (code[0] == '1' && code[7] == '=' && len / 2 < XT_LEN)
    {
      /* Get the name from the response and find it in the table. */
      name[0] = hexhex2nr(code + 3);
      name[1] = hexhex2nr(code + 5);
      name[2] = NUL;
      for (i = 0; key_names[i] != NULL; ++i)
      {
          if (STRCMP(key_names[i], name) == 0)
          {
            xt_index_in = i;
            break;
          }
      }
      if (key_names[i] != NULL)
      {
          for (i = 8; (c = hexhex2nr(code + i)) >= 0; i += 2)
            str[j++] = c;
          str[j] = NUL;
          if (name[0] == 'C' && name[1] == 'o')
          {
            /* Color count is not a key code. */
            i = atoi((char *)str);
            if (i != t_colors)
            {
                /* Nr of colors changed, initialize highlighting and
                 * redraw everything.  This causes a redraw, which usually
                 * clears the message.  Try keeping the message if it
                 * might work. */
                set_keep_msg_from_hist();
                set_color_count(i);
                init_highlight(TRUE, FALSE);
                redraw_later(CLEAR);
            }
          }
          else
          {
            /* First delete any existing entry with the same code. */
            i = find_term_bykeys(str);
            if (i >= 0)
                del_termcode_idx(i);
            add_termcode(name, str, ATC_FROM_TERM);
          }
      }
    }

    /* May request more codes now that we received one. */
    ++xt_index_in;
    req_more_codes_from_term();
}

/*
 * Check if there are any unanswered requests and deal with them.
 * This is called before starting an external program or getting direct
 * keyboard input.  We don't want responses to be send to that program or
 * handled as typed text.
 */
    static void
check_for_codes_from_term()
{
    int           c;

    /* If no codes requested or all are answered, no need to wait. */
    if (xt_index_out == 0 || xt_index_out == xt_index_in)
      return;

    /* Vgetc() will check for and handle any response.
     * Keep calling vpeekc() until we don't get any responses. */
    ++no_mapping;
    ++allow_keys;
    for (;;)
    {
      c = vpeekc();
      if (c == NUL)         /* nothing available */
          break;

      /* If a response is recognized it's replaced with K_IGNORE, must read
       * it from the input stream.  If there is no K_IGNORE we can't do
       * anything, break here (there might be some responses further on, but
       * we don't want to throw away any typed chars). */
      if (c != K_SPECIAL && c != K_IGNORE)
          break;
      c = vgetc();
      if (c != K_IGNORE)
      {
          vungetc(c);
          break;
      }
    }
    --no_mapping;
    --allow_keys;
}
#endif

#if defined(FEAT_CMDL_COMPL) || defined(PROTO)
/*
 * Translate an internal mapping/abbreviation representation into the
 * corresponding external one recognized by :map/:abbrev commands;
 * respects the current B/k/< settings of 'cpoption'.
 *
 * This function is called when expanding mappings/abbreviations on the
 * command-line, and for building the "Ambiguous mapping..." error messæge.
 *
 * It uses a growarray to build the translation string since the
 * latter can be wider than the original description. The caller has to
 * free the string afterwards.
 *
 * Returns NULL when there is a problem.
 */
    char_u *
translate_mapping(str, expmap)
    char_u  *str;
    int           expmap;  /* TRUE when expanding mappings on command-line */
{
    garray_T      ga;
    int           c;
    int           modifiers;
    int           cpo_bslash;
    int           cpo_special;
    int           cpo_keycode;

    ga_init(&ga);
    ga.ga_itemsize = 1;
    ga.ga_growsize = 40;

    cpo_bslash = (vim_strchr(p_cpo, CPO_BSLASH) != NULL);
    cpo_special = (vim_strchr(p_cpo, CPO_SPECI) != NULL);
    cpo_keycode = (vim_strchr(p_cpo, CPO_KEYCODE) == NULL);

    for (; *str; ++str)
    {
      c = *str;
      if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)
      {
          modifiers = 0;
          if (str[1] == KS_MODIFIER)
          {
            str++;
            modifiers = *++str;
            c = *++str;
          }
          if (cpo_special && cpo_keycode && c == K_SPECIAL && !modifiers)
          {
            int   i;

            /* try to find special key in termcodes */
            for (i = 0; i < tc_len; ++i)
                if (termcodes[i].name[0] == str[1]
                                  && termcodes[i].name[1] == str[2])
                  break;
            if (i < tc_len)
            {
                ga_concat(&ga, termcodes[i].code);
                str += 2;
                continue; /* for (str) */
            }
          }
          if (c == K_SPECIAL && str[1] != NUL && str[2] != NUL)
          {
            if (expmap && cpo_special)
            {
                ga_clear(&ga);
                return NULL;
            }
            c = TO_SPECIAL(str[1], str[2]);
            if (c == K_ZERO)  /* display <Nul> as ^@ */
                c = NUL;
            str += 2;
          }
          if (IS_SPECIAL(c) || modifiers) /* special key */
          {
            if (expmap && cpo_special)
            {
                ga_clear(&ga);
                return NULL;
            }
            ga_concat(&ga, get_special_key_name(c, modifiers));
            continue; /* for (str) */
          }
      }
      if (c == ' ' || c == '\t' || c == Ctrl_J || c == Ctrl_V
          || (c == '<' && !cpo_special) || (c == '\\' && !cpo_bslash))
          ga_append(&ga, cpo_bslash ? Ctrl_V : '\\');
      if (c)
          ga_append(&ga, c);
    }
    ga_append(&ga, NUL);
    return (char_u *)(ga.ga_data);
}
#endif

#if (defined(WIN3264) && !defined(FEAT_GUI)) || defined(PROTO)
static char ksme_str[20];
static char ksmr_str[20];
static char ksmd_str[20];

/*
 * For Win32 console: update termcap codes for existing console attributes.
 */
    void
update_tcap(attr)
    int attr;
{
    struct builtin_term *p;

    p = find_builtin_term(DEFAULT_TERM);
    sprintf(ksme_str, IF_EB("\033|%dm", ESC_STR "|%dm"), attr);
    sprintf(ksmd_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
                             attr | 0x08);  /* FOREGROUND_INTENSITY */
    sprintf(ksmr_str, IF_EB("\033|%dm", ESC_STR "|%dm"),
                         ((attr & 0x0F) << 4) | ((attr & 0xF0) >> 4));

    while (p->bt_string != NULL)
    {
      if (p->bt_entry == (int)KS_ME)
        p->bt_string = &ksme_str[0];
      else if (p->bt_entry == (int)KS_MR)
        p->bt_string = &ksmr_str[0];
      else if (p->bt_entry == (int)KS_MD)
        p->bt_string = &ksmd_str[0];
      ++p;
    }
}
#endif

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