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- /*
- * $Id: estruct.h,v 4.4 1993/08/20 00:13:58 mikes Exp $
- *
- * Program: Struct and preprocessor definitions
- *
- *
- * Michael Seibel
- * Networks and Distributed Computing
- * Computing and Communications
- * University of Washington
- * Administration Builiding, AG-44
- * Seattle, Washington, 98195, USA
- * Internet: mikes@cac.washington.edu
- *
- * Please address all bugs and comments to "pine-bugs@cac.washington.edu"
- *
- * Copyright 1991-1993 University of Washington
- *
- * Permission to use, copy, modify, and distribute this software and its
- * documentation for any purpose and without fee to the University of
- * Washington is hereby granted, provided that the above copyright notice
- * appears in all copies and that both the above copyright notice and this
- * permission notice appear in supporting documentation, and that the name
- * of the University of Washington not be used in advertising or publicity
- * pertaining to distribution of the software without specific, written
- * prior permission. This software is made available "as is", and
- * THE UNIVERSITY OF WASHINGTON DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED,
- * WITH REGARD TO THIS SOFTWARE, INCLUDING WITHOUT LIMITATION ALL IMPLIED
- * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, AND IN
- * NO EVENT SHALL THE UNIVERSITY OF WASHINGTON BE LIABLE FOR ANY SPECIAL,
- * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
- * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, TORT
- * (INCLUDING NEGLIGENCE) OR STRICT LIABILITY, ARISING OUT OF OR IN CONNECTION
- * WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * Pine and Pico are trademarks of the University of Washington.
- * No commercial use of these trademarks may be made without prior
- * written permission of the University of Washington.
- *
- */
- /* ESTRUCT: Structure and preprocesser defined for
- MicroEMACS 3.6
-
- written by Dave G. Conroy
- modified by Steve Wilhite, George Jones
- greatly modified by Daniel Lawrence
- */
-
- #ifndef ESTRUCT_H
- #define ESTRUCT_H
-
- /* Configuration options */
-
- #define CVMVAS 1 /* arguments to page forward/back in pages */
- #define NFWORD 1 /* forward word jumps to begining of word */
- #define TYPEAH 0 /* type ahead causes update to be skipped */
- #define REVSTA 1 /* Status line appears in reverse video */
-
-
- /* internal constants */
-
- #define NBINDS 50 /* max # of bound keys */
- #define NFILEN 80 /* # of bytes, file name */
- #define NBUFN 16 /* # of bytes, buffer name */
- #define NLINE 256 /* # of bytes, line */
- #define NSTRING 256 /* # of bytes, string buffers */
- #define NKBDM 256 /* # of strokes, keyboard macro */
- #define NPAT 80 /* # of bytes, pattern */
- #undef HUGE
- #define HUGE 1000 /* Huge number */
- #define NLOCKS 100 /* max # of file locks active */
-
- #define AGRAVE 0x60 /* M- prefix, Grave (LK201) */
- #define METACH 0x1B /* M- prefix, Control-[, ESC */
- #define CTMECH 0x1C /* C-M- prefix, Control-\ */
- #define EXITCH 0x1D /* Exit level, Control-] */
- #define CTRLCH 0x1E /* C- prefix, Control-^ */
- #define HELPCH 0x1F /* Help key, Control-_ */
-
- #undef CTRL
- #define CTRL 0x0100 /* Control flag, or'ed in */
- #define META 0x0200 /* Meta flag, or'ed in */
- #define CTLX 0x0400 /* ^X flag, or'ed in */
- #define SPEC 0x0800 /* special key (arrow's, etc) */
- #define FUNC 0x1000 /* special key (function keys) */
- #if MSDOS
- #define SHFT 0x2000 /* shifted (for function keys) */
- #define ALTD 0x4000 /* ALT key... */
- #endif
-
- #define QNORML 0x0000 /* Flag meaning no flag ;) */
- #define QFFILE 0x0001 /* Flag buffer for file neme */
- #define QDEFLT 0x0002 /* Flag to use default answer */
-
- #undef FALSE
- #define FALSE 0 /* False, no, bad, etc. */
- #undef TRUE
- #define TRUE 1 /* True, yes, good, etc. */
- #define ABORT 2 /* Death, ^G, abort, etc. */
-
- #define FIOSUC 0 /* File I/O, success. */
- #define FIOFNF 1 /* File I/O, file not found. */
- #define FIOEOF 2 /* File I/O, end of file. */
- #define FIOERR 3 /* File I/O, error. */
- #define FIOLNG 4 /*line longer than allowed len */
- #define FIODIR 5 /* File is a directory */
- #define FIONWT 6 /* File lacks write permission */
- #define FIONRD 7 /* File lacks read permission */
- #define FIONEX 8 /* File lacks exec permission */
-
-
- #define CFCPCN 0x0001 /* Last command was C-P, C-N */
- #define CFKILL 0x0002 /* Last command was a kill */
- #define CFFILL 0x0004 /* Last command was a kill */
-
- #define BELL 0x07 /* a bell character */
- #define TAB 0x09 /* a tab character */
-
-
- /*
- * There is a window structure allocated for every active display window. The
- * windows are kept in a big list, in top to bottom screen order, with the
- * listhead at "wheadp". Each window contains its own values of dot and mark.
- * The flag field contains some bits that are set by commands to guide
- * redisplay; although this is a bit of a compromise in terms of decoupling,
- * the full blown redisplay is just too expensive to run for every input
- * character.
- */
- typedef struct WINDOW {
- struct WINDOW *w_wndp; /* Next window */
- struct BUFFER *w_bufp; /* Buffer displayed in window */
- struct LINE *w_linep; /* Top line in the window */
- struct LINE *w_dotp; /* Line containing "." */
- short w_doto; /* Byte offset for "." */
- struct LINE *w_markp; /* Line containing "mark" */
- short w_marko; /* Byte offset for "mark" */
- struct LINE *w_imarkp; /* INTERNAL Line with "mark" */
- short w_imarko; /* INTERNAL "mark" byte offset */
- char w_toprow; /* Origin 0 top row of window */
- char w_ntrows; /* # of rows of text in window */
- char w_force; /* If NZ, forcing row. */
- char w_flag; /* Flags. */
- } WINDOW;
-
- #define WFFORCE 0x01 /* Window needs forced reframe */
- #define WFMOVE 0x02 /* Movement from line to line */
- #define WFEDIT 0x04 /* Editing within a line */
- #define WFHARD 0x08 /* Better to a full display */
- #define WFMODE 0x10 /* Update mode line. */
-
- /*
- * Text is kept in buffers. A buffer header, described below, exists for every
- * buffer in the system. The buffers are kept in a big list, so that commands
- * that search for a buffer by name can find the buffer header. There is a
- * safe store for the dot and mark in the header, but this is only valid if
- * the buffer is not being displayed (that is, if "b_nwnd" is 0). The text for
- * the buffer is kept in a circularly linked list of lines, with a pointer to
- * the header line in "b_linep".
- * Buffers may be "Inactive" which means the files accosiated with them
- * have not been read in yet. These get read in at "use buffer" time.
- */
- typedef struct BUFFER {
- struct BUFFER *b_bufp; /* Link to next BUFFER */
- struct LINE *b_dotp; /* Link to "." LINE structure */
- short b_doto; /* Offset of "." in above LINE */
- struct LINE *b_markp; /* The same as the above two, */
- short b_marko; /* but for the "mark" */
- struct LINE *b_linep; /* Link to the header LINE */
- char b_active; /* window activated flag */
- char b_nwnd; /* Count of windows on buffer */
- char b_flag; /* Flags */
- char b_mode; /* editor mode of this buffer */
- char b_fname[NFILEN]; /* File name */
- char b_bname[NBUFN]; /* Buffer name */
- } BUFFER;
-
- #if TERMCAP || TERMINFO
- struct KBSTREE {
- char value;
- int func; /* Routine to handle it */
- struct KBSTREE *down;
- struct KBSTREE *left;
- };
- #endif
-
- #define BFTEMP 0x01 /* Internal temporary buffer */
- #define BFCHG 0x02 /* Changed since last write */
-
-
- /*
- * The starting position of a region, and the size of the region in
- * characters, is kept in a region structure. Used by the region commands.
- */
- typedef struct {
- struct LINE *r_linep; /* Origin LINE address. */
- short r_offset; /* Origin LINE offset. */
- long r_size; /* Length in characters. */
- } REGION;
-
-
- /*
- * character and attribute pair. The basic building block
- * of the editor. The bitfields may have to be changed to a char
- * and short if there are problems...
- */
- typedef struct CELL {
- unsigned int c : 8; /* Character value in cell */
- unsigned int a : 8; /* Its attributes */
- } CELL;
-
-
- /*
- * All text is kept in circularly linked lists of "LINE" structures. These
- * begin at the header line (which is the blank line beyond the end of the
- * buffer). This line is pointed to by the "BUFFER". Each line contains a the
- * number of bytes in the line (the "used" size), the size of the text array,
- * and the text. The end of line is not stored as a byte; it's implied. Future
- * additions will include update hints, and a list of marks into the line.
- */
- typedef struct LINE {
- struct LINE *l_fp; /* Link to the next line */
- struct LINE *l_bp; /* Link to the previous line */
- short l_size; /* Allocated size */
- short l_used; /* Used size */
- #ifdef HEBREW
- char l_type; /* 1 - hebrew 0 - english */
- #endif
- CELL l_text[1]; /* A bunch of characters. */
- } LINE;
-
- #define lforw(lp) ((lp)->l_fp)
- #define lback(lp) ((lp)->l_bp)
- #define lgetc(lp, n) ((lp)->l_text[(n)])
- #define lputc(lp, n, c) ((lp)->l_text[(n)]=(c))
- #define llength(lp) ((lp)->l_used)
-
- /*
- * The editor communicates with the display using a high level interface. A
- * "TERM" structure holds useful variables, and indirect pointers to routines
- * that do useful operations. The low level get and put routines are here too.
- * This lets a terminal, in addition to having non standard commands, have
- * funny get and put character code too. The calls might get changed to
- * "termp->t_field" style in the future, to make it possible to run more than
- * one terminal type.
- */
- typedef struct {
- short t_nrow; /* Number of rows. */
- short t_ncol; /* Number of columns. */
- short t_margin; /* min margin for extended lines*/
- short t_scrsiz; /* size of scroll region " */
- int (*t_open)(); /* Open terminal at the start. */
- int (*t_close)(); /* Close terminal at end. */
- int (*t_getchar)(); /* Get character from keyboard. */
- int (*t_putchar)(); /* Put character to display. */
- int (*t_flush)(); /* Flush output buffers. */
- int (*t_move)(); /* Move the cursor, origin 0. */
- int (*t_eeol)(); /* Erase to end of line. */
- int (*t_eeop)(); /* Erase to end of page. */
- int (*t_beep)(); /* Beep. */
- int (*t_rev)(); /* set reverse video state */
- } TERM;
-
- /* structure for the table of initial key bindings */
-
- typedef struct {
- short k_code; /* Key code */
- int (*k_fp)(); /* Routine to handle it */
- } KEYTAB;
-
- /* structure for the name binding table */
-
- typedef struct {
- char *n_name; /* name of function key */
- int (*n_func)(); /* function name is bound to */
- } NBIND;
-
- #endif /* ESTRUCT_H */