home *** CD-ROM | disk | FTP | other *** search
- /*
- * 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
- */
-
- #ifdef OLD_TTY
- #include <sgtty.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 {
- /* 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 {
- #ifdef OLD_TTY
- struct sgttyb ww_sgttyb;
- struct tchars ww_tchars;
- struct ltchars ww_ltchars;
- int ww_lmode;
- int ww_ldisc;
- #else
- struct termios ww_termios;
- #endif
- int ww_fflags;
- };
-
- 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
- #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;
- };
-
- /* parts of ww_char */
- #define WWC_CMASK 0x00ff
- #define WWC_MMASK 0xff00
- #define WWC_MSHIFT 8
-
- /* 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();
- 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))
-