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Annotation of 43BSD/ucb/window/tt.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * @(#)tt.h    3.15 9/20/85
        !             3:  */
        !             4: 
        !             5: /*
        !             6:  * Copyright (c) 1983 Regents of the University of California,
        !             7:  * All rights reserved.  Redistribution permitted subject to
        !             8:  * the terms of the Berkeley Software License Agreement.
        !             9:  */
        !            10: 
        !            11: /*
        !            12:  * Interface structure for the terminal drivers.
        !            13:  */
        !            14: struct tt {
        !            15:                /* startup and cleanup */
        !            16:        int (*tt_init)();
        !            17:        int (*tt_end)();
        !            18: 
        !            19:                /* terminal functions */
        !            20:        int (*tt_move)();
        !            21:        int (*tt_insline)();
        !            22:        int (*tt_delline)();
        !            23:        int (*tt_delchar)();
        !            24:        int (*tt_write)();              /* write a whole block */
        !            25:        int (*tt_putc)();               /* write one character */
        !            26:        int (*tt_clreol)();
        !            27:        int (*tt_clreos)();
        !            28:        int (*tt_clear)();
        !            29:        int (*tt_setinsert)();          /* set insert mode */
        !            30:        int (*tt_setmodes)();           /* set display modes */
        !            31: 
        !            32:                /* internal variables */
        !            33:        char tt_modes;                  /* the current display modes */
        !            34:        char tt_nmodes;                 /* the new modes for next write */
        !            35:        char tt_insert;                 /* currently in insert mode */
        !            36:        char tt_ninsert;                /* insert mode on next write */
        !            37:        int tt_row;                     /* cursor row */
        !            38:        int tt_col;                     /* cursor column */
        !            39: 
        !            40:                /* terminal info */
        !            41:        int tt_nrow;                    /* number of display rows */
        !            42:        int tt_ncol;                    /* number of display columns */
        !            43:        char tt_hasinsert;              /* has insert character */
        !            44:        char tt_availmodes;             /* the display modes supported */
        !            45:        char tt_wrap;                   /* has auto wrap around */
        !            46:        char tt_retain;                 /* can retain below (db flag) */
        !            47: 
        !            48:                /* the frame characters */
        !            49:        short *tt_frame;
        !            50: };
        !            51: struct tt tt;
        !            52: 
        !            53: /*
        !            54:  * List of terminal drivers.
        !            55:  */
        !            56: struct tt_tab {
        !            57:        char *tt_name;
        !            58:        int tt_len;
        !            59:        int (*tt_func)();
        !            60: };
        !            61: struct tt_tab tt_tab[];
        !            62: 
        !            63: /*
        !            64:  * Clean interface to termcap routines.
        !            65:  * Too may t's.
        !            66:  */
        !            67: char tt_strings[1024];         /* string buffer */
        !            68: char *tt_strp;                 /* pointer for it */
        !            69: 
        !            70: struct tt_str {
        !            71:        char *ts_str;
        !            72:        int ts_n;
        !            73: };
        !            74: 
        !            75: struct tt_str *tttgetstr();
        !            76: struct tt_str *ttxgetstr();    /* tgetstr() and expand delays */
        !            77: 
        !            78: int tttputc();
        !            79: #define tttputs(s, n)  tputs((s)->ts_str, (n), tttputc)
        !            80: #define ttxputs(s)     ttwrite((s)->ts_str, (s)->ts_n)
        !            81: 
        !            82: /*
        !            83:  * Buffered output without stdio.
        !            84:  * These variables have different meanings from the ww_ob* variabels.
        !            85:  * But I'm too lazy to think up different names.
        !            86:  */
        !            87: char tt_ob[512];
        !            88: char *tt_obp;
        !            89: char *tt_obe;
        !            90: #define ttputc(c)      (tt_obp < tt_obe ? (*tt_obp++ = (c)) \
        !            91:                                : (ttflush(), *tt_obp++ = (c)))

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