BSD 4_3_Net_2 release

[unix-history] / usr / src / usr.bin / window / ww.h

diff --git a/usr/src/usr.bin/window/ww.h b/usr/src/usr.bin/window/ww.h
index b91227a..9acbc8e 100644 (file)
--- a/usr/src/usr.bin/window/ww.h
+++ b/usr/src/usr.bin/window/ww.h
@@ -1,64 +1,310 @@
-/*     @(#)ww.h        1.4 83/07/19            */
+/*
+ * Copyright (c) 1983 Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Edward Wang at The University of California, Berkeley.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *     This product includes software developed by the University of
+ *     California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *     @(#)ww.h        3.63 (Berkeley) 3/2/91
+ */

 
 

-#include <stdio.h>
+#ifdef OLD_TTY

 #include <sgtty.h>
 #include <sgtty.h>

-#include "window.h"
+#else
+#include <termios.h>
+#endif
+#include <setjmp.h>
+#include <machine/endian.h>
+
+#define NWW    30              /* maximum number of windows */

 
 

+       /* a rectangle */
+struct ww_dim {
+       int nr;                 /* number of rows */
+       int nc;                 /* number of columns */
+       int t, b;               /* top, bottom */
+       int l, r;               /* left, right */
+};
+
+       /* a coordinate */
+struct ww_pos {
+       int r;                  /* row */
+       int c;                  /* column */
+};
+
+       /* the window structure */

 struct ww {
 struct ww {

-       char ww_state;          /* state of window creation */
-       char ww_mode;           /* mode used to open this window */
-       char ww_wstate;         /* state for printing charcters */
-       int ww_insert :1;       /* insert mode, for printing */
-       int ww_refresh :1;      /* force refresh after \n and others */
-       char ww_ident;
-       Win *ww_win;
-       int ww_row;             /* outside dimensions */
-       int ww_col;
-       int ww_nrow;
-       int ww_ncol;
-       int ww_irow;            /* inside dimensions */
-       int ww_icol;
-       int ww_inrow;
-       int ww_incol;
-       int ww_pty;             /* pty or socket pair */
-       int ww_tty;
-       int ww_pid;
-       struct ww *ww_next;
+               /* general flags and states */
+       char ww_state;          /* state of window */
+       char ww_oflags;         /* wwopen flags */
+
+               /* information for overlap */
+       struct ww *ww_forw;     /* doubly linked list, for overlapping info */
+       struct ww *ww_back;
+       char ww_index;          /* the window index, for wwindex[] */
+       char ww_order;          /* the overlapping order */
+
+               /* sizes and positions */
+       struct ww_dim ww_w;     /* window size and pos */
+       struct ww_dim ww_b;     /* buffer size and pos */
+       struct ww_dim ww_i;     /* the part inside the screen */
+       struct ww_pos ww_cur;   /* the cursor position, relative to ww_w */
+
+               /* arrays */
+       char **ww_win;          /* the window */
+       union ww_char **ww_buf; /* the buffer */
+       char **ww_fmap;         /* map for frame and box windows */
+       short *ww_nvis;         /* how many ww_buf chars are visible per row */
+
+               /* information for wwwrite() and company */
+       char ww_wstate;         /* state for outputting characters */
+       char ww_modes;          /* current display modes */
+       char ww_insert;         /* insert mode */
+       char ww_mapnl;          /* map \n to \r\n */
+       char ww_noupdate;       /* don't do updates in wwwrite() */
+       char ww_unctrl;         /* expand control characters */
+       char ww_nointr;         /* wwwrite() not interruptable */
+       char ww_hascursor;      /* has fake cursor */
+
+               /* things for the window process and io */
+       char ww_ispty;          /* ww_pty is really a pty, not socket pair */
+       char ww_stopped;        /* output stopped */
+       int ww_pty;             /* file descriptor of pty or socket pair */
+       int ww_socket;          /* other end of socket pair */
+       int ww_pid;             /* pid of process, if WWS_HASPROC true */
+       char ww_ttyname[11];    /* "/dev/ttyp?" */
+       char *ww_ob;            /* output buffer */
+       char *ww_obe;           /* end of ww_ob */
+       char *ww_obp;           /* current read position in ww_ob */
+       char *ww_obq;           /* current write position in ww_ob */
+
+               /* things for the user, they really don't belong here */
+       char ww_id;             /* the user window id */
+       char ww_center;         /* center the label */
+       char ww_hasframe;       /* frame it */
+       char ww_keepopen;       /* keep it open after the process dies */
+       char *ww_label;         /* the user supplied label */
+       struct ww_dim ww_alt;   /* alternate position and size */

 };
 
 };
 

+       /* state of a tty */

 struct ww_tty {
 struct ww_tty {

+#ifdef OLD_TTY

        struct sgttyb ww_sgttyb;
        struct tchars ww_tchars;
        struct ltchars ww_ltchars;
        int ww_lmode;
        int ww_ldisc;
        struct sgttyb ww_sgttyb;
        struct tchars ww_tchars;
        struct ltchars ww_ltchars;
        int ww_lmode;
        int ww_ldisc;

-       int ww_pgrp;
+#else
+       struct termios ww_termios;
+#endif
+       int ww_fflags;

 };
 
 };
 

-       /* ww_state values */
-#define WW_INITIAL     0
-#define WW_HASPROC     1
-#define WW_INCHILD     2
-#define WW_DEAD                3
-
-       /* ww_mode values */
-#define WW_PTY         0               /* has pty */
-#define WW_SOCKET      1               /* has socket pair */
-#define WW_NONE                2               /* has nothing */
-
-#ifndef CTRL
-#define CTRL(c)        ('c'&0x1f)
+union ww_char {
+       short c_w;              /* as a word */
+       struct {
+#if BYTE_ORDER == LITTLE_ENDIAN || BYTE_ORDER == PDP_ENDIAN
+               char C_c;       /* the character part */
+               char C_m;       /* the mode part */

 #endif
 #endif

+#if BYTE_ORDER == BIG_ENDIAN
+               char C_m;       /* the mode part */
+               char C_c;       /* the character part */
+#endif
+       } c_un;
+};
+#define c_c c_un.C_c
+#define c_m c_un.C_m
+
+       /* for display update */
+struct ww_update {
+       int best_gain;
+       int best_col;
+       int gain;
+};

 
 

-extern struct ww *wwhead, *curwin;
-extern struct ww_tty wwoldtty, wwnewtty;
-extern int wwnwrite;
+       /* parts of ww_char */
+#define WWC_CMASK      0x00ff
+#define WWC_MMASK      0xff00
+#define WWC_MSHIFT     8

 
 

-#define wwputchar(c)   wwputc((c), curwin)
-#define wwputstr(s)    wwputs((s), curwin)
-#define wwsetcursor(r,c) (WRCurRow = (r), WRCurCol = (c))
-#define wwflush()      Wrefresh(1)
+       /* c_m bits */
+#define WWM_REV                0x01    /* reverse video */
+#define WWM_BLK                0x02    /* blinking */
+#define WWM_UL         0x04    /* underlined */
+#define WWM_GRP                0x08    /* graphics */
+#define WWM_DIM                0x10    /* half intensity */
+#define WWM_USR                0x20    /* user specified mode */
+#define WWM_GLS                0x40    /* window only, glass, i.e., transparent */

 
 

+       /* ww_state values */
+#define WWS_INITIAL    0       /* just opened */
+#define WWS_HASPROC    1       /* has process on pty */
+#define WWS_DEAD       3       /* child died */
+
+       /* flags for ww_fmap */
+#define WWF_U          0x01
+#define WWF_R          0x02
+#define WWF_D          0x04
+#define WWF_L          0x08
+#define WWF_MASK       (WWF_U|WWF_R|WWF_D|WWF_L)
+#define WWF_LABEL      0x40
+#define WWF_TOP                0x80
+
+       /* flags to wwopen() */
+#define WWO_PTY                0x01            /* want pty */
+#define WWO_SOCKET     0x02            /* want socket pair */
+#define WWO_REVERSE    0x04            /* make it all reverse video */
+#define WWO_GLASS      0x08            /* make it all glass */
+#define WWO_FRAME      0x10            /* this is a frame window */
+
+       /* special ww_index value */
+#define WWX_NOBODY     NWW
+
+       /* error codes */
+#define WWE_NOERR      0
+#define WWE_SYS                1               /* system error */
+#define WWE_NOMEM      2               /* out of memory */
+#define WWE_TOOMANY    3               /* too many windows */
+#define WWE_NOPTY      4               /* no more ptys */
+#define WWE_SIZE       5               /* bad window size */
+#define WWE_BADTERM    6               /* bad terminal type */
+#define WWE_CANTDO     7               /* dumb terminal */
+
+       /* wwtouched[] bits, there used to be more than one */
+#define WWU_TOUCHED    0x01            /* touched */
+
+       /* the window structures */
+struct ww wwhead;
+struct ww *wwindex[NWW + 1];           /* last location is for wwnobody */
+struct ww wwnobody;
+
+       /* tty things */
+struct ww_tty wwoldtty;                /* the old (saved) terminal settings */
+struct ww_tty wwnewtty;                /* the new (current) terminal settings */
+struct ww_tty wwwintty;                /* the terminal settings for windows */
+char *wwterm;                  /* the terminal name */
+char wwtermcap[1024];          /* place for the termcap */
+
+       /* generally useful variables */
+int wwnrow, wwncol;            /* the screen size */
+char wwavailmodes;             /* actually supported modes */
+char wwcursormodes;            /* the modes for the fake cursor */
+char wwwrap;                   /* terminal has auto wrap around */
+int wwdtablesize;              /* result of getdtablesize() call */
+char **wwsmap;                 /* the screen map */
+union ww_char **wwos;          /* the old (current) screen */
+union ww_char **wwns;          /* the new (desired) screen */
+char *wwtouched;               /* wwns changed flags */
+struct ww_update *wwupd;       /* for display update */
+int wwospeed;                  /* output baud rate, copied from wwoldtty */
+int wwbaud;                    /* wwospeed converted into actual number */
+int wwcursorrow, wwcursorcol;  /* where we want the cursor to be */
+int wwerrno;                   /* error number */
+
+       /* statistics */
+int wwnflush, wwnwr, wwnwre, wwnwrz, wwnwrc;
+int wwnwwr, wwnwwra, wwnwwrc;
+int wwntokdef, wwntokuse, wwntokbad, wwntoksave, wwntokc;
+int wwnupdate, wwnupdline, wwnupdmiss;
+int wwnupdscan, wwnupdclreol, wwnupdclreos, wwnupdclreosmiss, wwnupdclreosline;
+int wwnread, wwnreade, wwnreadz, wwnreadc;
+int wwnwread, wwnwreade, wwnwreadz, wwnwreadd, wwnwreadc, wwnwreadp;
+int wwnselect, wwnselecte, wwnselectz;
+
+       /* quicky macros */
+#define wwsetcursor(r,c) (wwcursorrow = (r), wwcursorcol = (c))
+#define wwcurtowin(w)  wwsetcursor((w)->ww_cur.r, (w)->ww_cur.c)
+#define wwunbox(w)     wwunframe(w)
+#define wwclreol(w,r,c)        wwclreol1((w), (r), (c), 0)
+#define wwredrawwin(w) wwredrawwin1((w), (w)->ww_i.t, (w)->ww_i.b, 0)
+#define wwupdate()     wwupdate1(0, wwnrow);
+
+       /* things for handling input */
+void wwrint();         /* interrupt handler */
+struct ww *wwcurwin;   /* window to copy input into */
+char *wwib;            /* input (keyboard) buffer */
+char *wwibe;           /* wwib + sizeof buffer */
+char *wwibp;           /* current read position in buffer */
+char *wwibq;           /* current write position in buffer */
+#define wwgetc()       (wwibp < wwibq ? *wwibp++ & 0x7f : -1)
+#define wwpeekc()      (wwibp < wwibq ? *wwibp & 0x7f : -1)
+#define wwungetc(c)    (wwibp > wwib ? *--wwibp = (c) : -1)
+
+       /* things for short circuiting wwiomux() */
+char wwintr;           /* interrupting */
+char wwsetjmp;         /* want a longjmp() from wwrint() and wwchild() */
+jmp_buf wwjmpbuf;      /* jmpbuf for above */
+#define wwinterrupt()  wwintr
+#define wwsetintr()    do { wwintr = 1; if (wwsetjmp) longjmp(wwjmpbuf, 1); } \
+                       while (0)
+#define wwclrintr()    (wwintr = 0)
+
+       /* the window virtual terminal */
+#define WWT_TERM       "window-v2"
+#define WWT_TERMCAP    "WW|window-v2|window program version 2:\
+       :am:bs:da:db:ms:pt:cr=^M:nl=^J:bl=^G:ta=^I:\
+       :cm=\\EY%+ %+ :le=^H:nd=\\EC:up=\\EA:do=\\EB:ho=\\EH:\
+       :cd=\\EJ:ce=\\EK:cl=\\EE:me=\\Er^?:"
+#define WWT_REV                "se=\\ErA:so=\\EsA:mr=\\EsA:"
+#define WWT_BLK                "BE=\\ErB:BS=\\EsB:mb=\\EsB:"
+#define WWT_UL         "ue=\\ErD:us=\\EsD:"
+#define WWT_GRP                "ae=\\ErH:as=\\EsH:"
+#define WWT_DIM                "HE=\\ErP:HS=\\EsP:mh=\\EsP:"
+#define WWT_USR                "XE=\\Er`:XS=\\Es`:"
+#define WWT_ALDL       "al=\\EL:dl=\\EM:"
+#define WWT_IMEI       "im=\\E@:ei=\\EO:ic=:mi:" /* XXX, ic for emacs bug */
+#define WWT_IC         "ic=\\EP:"
+#define WWT_DC         "dc=\\EN:"
+char wwwintermcap[1024];       /* terminal-specific but window-independent
+                                  part of the window termcap */
+
+       /* our functions */

 struct ww *wwopen();
 struct ww *wwopen();

-struct ww *wwfind();
-int wwchild();
+void wwchild();
+void wwsuspend();
+char **wwalloc();
+char *wwerror();
+
+       /* c library functions */
+char *malloc();
+char *calloc();
+char *getenv();
+char *tgetstr();
+char *rindex();
+char *strcpy();
+char *strcat();
+
+#undef MIN
+#undef MAX
+#define MIN(x, y)      ((x) > (y) ? (y) : (x))
+#define MAX(x, y)      ((x) > (y) ? (x) : (y))