BSD 4_4 release

[unix-history] / usr / src / usr.bin / ex / ex_tty.h

diff --git a/usr/src/usr.bin/ex/ex_tty.h b/usr/src/usr.bin/ex/ex_tty.h
index 0dc41fd..12e0fa8 100644 (file)
--- a/usr/src/usr.bin/ex/ex_tty.h
+++ b/usr/src/usr.bin/ex/ex_tty.h
@@ -1,4 +1,14 @@
-/* Copyright (c) 1979 Regents of the University of California */
+/*-
+ * Copyright (c) 1980, 1993
+ *     The Regents of the University of California.  All rights reserved.
+ *
+ * This module is believed to contain source code proprietary to AT&T.
+ * Use and redistribution is subject to the Berkeley Software License
+ * Agreement and your Software Agreement with AT&T (Western Electric).
+ *
+ *     @(#)ex_tty.h    8.1 (Berkeley) 6/9/93
+ */
+

 /*
  * Capabilities from termcap
  *
 /*
  * Capabilities from termcap
  *


@@ -25,102 +35,163 @@
  * before the capability to say 12 milliseconds per affected whatever
  * (currently always line).  Capabilities where this makes sense say P*.
  */
  * before the capability to say 12 milliseconds per affected whatever
  * (currently always line).  Capabilities where this makes sense say P*.
  */

-char   tspace[256];            /* Space for capability strings */
-char   *aoftspace;             /* Address of tspace for relocation */
+var    char    tspace[1024];   /* Space for capability strings */
+var    char    *aoftspace;     /* Address of tspace for relocation */

 
 

-char   *AL;                    /* P* Add new blank line */
-char   *BC;                    /*    Back cursor */
-char   *BT;                    /* P  Back tab */
-char   *CD;                    /* P* Clear to end of display */
-char   *CE;                    /* P  Clear to end of line */
-char   *CL;                    /* P* Clear screen */
-char   *CM;                    /* P  Cursor motion */
-char   *DC;                    /* P* Delete character */
-char   *DL;                    /* P* Delete line sequence */
-char   *DM;                    /*    Delete mode (enter)  */
-char   *DO;                    /*    Down line sequence */
-char   *ED;                    /*    End delete mode */
-char   *EI;                    /*    End insert mode */
-char   *F0,*F1,*F2,*F3,*F4,*F5,*F6,*F7,*F8,*F9;
+var    char    *AL;            /* P* Add new blank line */
+var    char    *AL_PARM;       /* P* Add n new blank lines */
+extern char    *BC;            /*    Back cursor */
+var    char    *BT;            /* P  Back tab */
+var    char    *CD;            /* P* Clear to end of display */
+var    char    *CE;            /* P  Clear to end of line */
+var    char    *CL;            /* P* Clear screen */
+var    char    *CM;            /* PG Cursor motion */
+var    char    *CS;            /* PG Change scrolling region (vt100) */
+var    char    *xCR;           /* P  Carriage return */
+var    char    *DC;            /* P* Delete character */
+var    char    *DL;            /* P* Delete line sequence */
+var    char    *DL_PARM;       /* P* Delete n lines */
+var    char    *DM;            /*    Delete mode (enter)  */
+var    char    *DO;            /*    Down line sequence */
+var    char    *DOWN_PARM;     /*    Down n lines */
+var    char    *ED;            /*    End delete mode */
+var    char    *EI;            /*    End insert mode */
+var    char    *F0,*F1,*F2,*F3,*F4,*F5,*F6,*F7,*F8,*F9;

                                /*    Strings sent by various function keys */
                                /*    Strings sent by various function keys */

-char   *HO;                    /*    Home cursor */
-char   *IC;                    /* P  Insert character */
-char   *IM;                    /*    Insert mode (give as ':im=:' if 'ic' */
-char   *IP;                    /* P* Insert pad after char ins'd using IM+IE */
-char   *KD;                    /*    Keypad down arrow */
-char   *KE;                    /*    Keypad don't xmit */
-char   *KH;                    /*    Keypad home key */
-char   *KL;                    /*    Keypad left arrow */
-char   *KR;                    /*    Keypad right arrow */
-char   *KS;                    /*    Keypad start xmitting */
-char   *KU;                    /*    Keypad up arrow */
-char   *LL;                    /*    Quick to last line, column 0 */
-char   *ND;                    /*    Non-destructive space */
-char   PC;                     /*    Pad character */
-char   *SE;                    /*    Standout end (may leave space) */
-char   *SF;                    /* P  Scroll forwards */
-char   *SO;                    /*    Stand out begin (may leave space) */
-char   *SR;                    /* P  Scroll backwards */
-char   *TA;                    /* P  Tab (other than ^I or with padding) */
-char   *TE;                    /*    Terminal end sequence */
-char   *TI;                    /*    Terminal initial sequence */
-char   *UP;                    /*    Upline */
-char   *VB;                    /*    Visible bell */
-char   *VE;                    /*    Visual end sequence */
-char   *VS;                    /*    Visual start sequence */
-bool   AM;                     /* Automatic margins */
-bool   BS;                     /* Backspace works */
-bool   CA;                     /* Cursor addressible */
-bool   DA;                     /* Display may be retained above */
-bool   DB;                     /* Display may be retained below */
-bool   EO;                     /* Can erase overstrikes with ' ' */
-bool   GT;                     /* Gtty indicates tabs */
-bool   HC;                     /* Hard copy terminal */
-bool   HZ;                     /* Hazeltine ~ braindamage */
-bool   IN;                     /* Insert-null blessing */
-bool   MI;                     /* can move in insert mode */
-bool   NC;                     /* No Cr - \r snds \r\n then eats \n (dm2500) */
-bool   OS;                     /* Overstrike works */
-bool   UL;                     /* Underlining works even though !os */
-bool   XN;                     /* A newline gets eaten after wrap (concept) */
-bool   XT;                     /* Tabs are destructive */
+var    char    *HO;            /*    Home cursor */
+var    char    *IC;            /* P  Insert character */
+var    char    *IM;            /*    Insert mode (give as ':im=:' if 'ic' */
+var    char    *IP;            /* P* Insert pad after char ins'd using IM+IE */
+var    char    *KD;            /*    Keypad down arrow */
+var    char    *KE;            /*    Keypad don't xmit */
+var    char    *KH;            /*    Keypad home key */
+var    char    *KL;            /*    Keypad left arrow */
+var    char    *KR;            /*    Keypad right arrow */
+var    char    *KS;            /*    Keypad start xmitting */
+var    char    *KU;            /*    Keypad up arrow */
+var    char    *LEFT_PARM;     /*    Left n chars */
+var    char    *LL;            /*    Quick to last line, column 0 */
+var    char    *ND;            /*    Non-destructive space */
+var    char    *RIGHT_PARM;    /*    Right n spaces */
+var    char    *xNL;           /*    Line feed (new line) */
+extern char    PC;             /*    Pad character */
+var    char    *RC;            /*    Restore cursor from last SC */
+var    char    *SC;            /*    Save cursor */
+var    char    *SE;            /*    Standout end (may leave space) */
+var    char    *SF;            /* P  Scroll forwards */
+var    char    *SO;            /*    Stand out begin (may leave space) */
+var    char    *SR;            /* P  Scroll backwards */
+var    char    *TA;            /* P  Tab (other than ^I or with padding) */
+var    char    *TE;            /*    Terminal end sequence */
+var    char    *TI;            /*    Terminal initial sequence */
+extern char    *UP;            /*    Upline */
+var    char    *UP_PARM;       /*    Up n lines */
+var    char    *VB;            /*    Visible bell */
+var    char    *VE;            /*    Visual end sequence */
+var    char    *VS;            /*    Visual start sequence */
+var    bool    AM;             /* Automatic margins */
+var    bool    BS;             /* Backspace works */
+var    bool    CA;             /* Cursor addressible */
+var    bool    DA;             /* Display may be retained above */
+var    bool    DB;             /* Display may be retained below */
+var    bool    EO;             /* Can erase overstrikes with ' ' */
+var    bool    GT;             /* Gtty indicates tabs */
+var    bool    HC;             /* Hard copy terminal */
+var    bool    HZ;             /* Hazeltine ~ braindamage */
+var    bool    IN;             /* Insert-null blessing */
+var    bool    MI;             /* can move in insert mode */
+var    bool    NC;             /* No Cr - \r snds \r\n then eats \n (dm2500) */
+var    bool    NS;             /* No scroll - linefeed at bottom won't scroll */
+var    bool    OS;             /* Overstrike works */
+var    bool    UL;             /* Underlining works even though !os */
+var    bool    XB;             /* Beehive (no escape key, simulate with f1) */
+var    bool    XN;             /* A newline gets eaten after wrap (concept) */
+var    bool    XT;             /* Tabs are destructive */
+var    bool    XX;             /* Tektronix 4025 insert line */

        /* X? is reserved for severely nauseous glitches */
        /* If there are enough of these we may need bit masks! */
 
 /*
  * From the tty modes...
  */
        /* X? is reserved for severely nauseous glitches */
        /* If there are enough of these we may need bit masks! */
 
 /*
  * From the tty modes...
  */

-bool   NONL;                   /* Terminal can't hack linefeeds doing a CR */
-bool   UPPERCASE;              /* Ick! */
-short  LINES;                  /* Number of lines on screen */
-short  COLUMNS;
-short  OCOLUMNS;               /* Save COLUMNS for a hack in open mode */
+var    bool    NONL;           /* Terminal can't hack linefeeds doing a CR */
+var    bool    UPPERCASE;      /* Ick! */
+extern short   LINES;          /* Number of lines on screen */
+extern short   COLUMNS;
+var    short   OCOLUMNS;       /* Save COLUMNS for a hack in open mode */
+#ifdef TIOCGWINSZ
+var    struct winsize winsz;   /* Save window size for stopping comparisons */
+#endif
+
+var    short   outcol;         /* Where the cursor is */
+var    short   outline;

 
 

-short  outcol;                 /* Where the cursor is */
-short  outline;
+var    short   destcol;        /* Where the cursor should be */
+var    short   destline;

 
 

-short  destcol;                /* Where the cursor should be */
-short  destline;
+/*
+ * There are several kinds of tty drivers to contend with.  These include:
+ * (1) V6:             no CBREAK, no ioctl.  (Include PWB V1 here).
+ * (2) V7 research:    has CBREAK, has ioctl, and has the tchars (TIOCSETC)
+ *                     business to change start, stop, etc. chars.
+ * (3) USG V2:         Basically like V6 but RAW mode is like V7 RAW.
+ *                     (We treat it as V6.)
+ * (4) USG V3:         equivalent to V7 but totally incompatible.
+ * (5)  Berkeley:      has ltchars in addition to all of V7.
+ *
+ * The following attempts to decide what we are on, and declare
+ * some variables in the appropriate format.  The wierd looking one (ttymode)
+ * is the thing we pass to ex_sTTY and family to turn "RAW" mode on or off
+ * when we go into or out of visual mode.  In V7/V6 it's just the flags word
+ * to stty.  In USG V3 it's the whole tty structure.
+ */
+#ifdef USG3TTY                 /* USG V3 */
+  var  struct  termio tty;     /* Use this one structure to change modes */
+  typedef      struct termio ttymode;  /* Mode to contain tty flags */
+
+#else                          /* All others */
+  var  struct  sgttyb tty;     /* Always stty/gtty using this one structure */
+  typedef      int ttymode;    /* Mode to contain tty flags */
+# ifdef        TIOCSETC        /* V7 */
+   var struct  tchars ottyc, nttyc;    /* For V7 character masking */
+# endif
+# ifdef                TIOCLGET        /* Berkeley */
+   var struct  ltchars olttyc, nlttyc; /* More of tchars style stuff */
+# endif

 
 

-#ifdef         TIOCSETC
-struct tchars ottyc, nttyc;    /* For V7 character masking */

 #endif
 #endif

-struct sgttyb tty;             /* Always stty/gtty using this one structure */
-bool   normtty;                /* Have to restor normal mode from normf */
-int    normf;                  /* Restore tty flags to this (someday) */

 
 

-short  WBOT;
-short  WECHO;
+var    ttymode normf;          /* Restore tty flags to this (someday) */
+var    bool    normtty;        /* Have to restore normal mode from normf */
+
+ttymode ostart(), setty(), unixex();

 
 

-short  costCM;
+var    short   costCM; /* # chars to output a typical CM, with padding etc. */
+var    short   costSR; /* likewise for scroll reverse */
+var    short   costAL; /* likewise for insert line */
+var    short   costDP; /* likewise for DOWN_PARM */
+var    short   costLP; /* likewise for LEFT_PARM */
+var    short   costRP; /* likewise for RIGHT_PARM */

 
 

-#define MAXNOMACS      32      /* max number of macros */
-#define MAXCHARMACS    512     /* max # of chars total in macros */
+#ifdef VMUNIX
+# define MAXNOMACS     128     /* max number of macros of each kind */
+# define MAXCHARMACS   2048    /* max # of chars total in macros */
+#else
+# define MAXNOMACS     32      /* max number of macros of each kind */
+# define MAXCHARMACS   512     /* max # of chars total in macros */
+#endif

 struct maps {
        char *cap;      /* pressing button that sends this.. */
        char *mapto;    /* .. maps to this string */
        char *descr;    /* legible description of key */
 };
 struct maps {
        char *cap;      /* pressing button that sends this.. */
        char *mapto;    /* .. maps to this string */
        char *descr;    /* legible description of key */
 };

-struct maps arrows[MAXNOMACS]; /* macro defs - 1st 5 built in */
-char   mapspace[MAXCHARMACS];
-char   *msnext;        /* next free location in mapspace */
+var    struct maps arrows[MAXNOMACS];  /* macro defs - 1st 5 built in */
+var    struct maps immacs[MAXNOMACS];  /* for while in insert mode */
+var    struct maps abbrevs[MAXNOMACS]; /* for word abbreviations */
+var    int     ldisc;                  /* line discipline for ucb tty driver */
+var    char    mapspace[MAXCHARMACS];
+var    char    *msnext;        /* next free location in mapspace */
+var    int     maphopcnt;      /* check for infinite mapping loops */
+var    bool    anyabbrs;       /* true if abbr or unabbr has been done */
+var    char    ttynbuf[20];    /* result of ttyname() */
+var    int     ttymesg;        /* original mode of users tty */