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2023-03-18 20:26:52 +02:00
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/*
* $Id: estruct.h 13888 2004-12-01 00:37:37Z hubert $
*
* 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"
*
*
* Pine and Pico are registered trademarks of the University of Washington.
* No commercial use of these trademarks may be made without prior written
* permission of the University of Washington.
*
* Pine, Pico, and Pilot software and its included text are Copyright
* 1989-2004 by the University of Washington.
*
* The full text of our legal notices is contained in the file called
* CPYRIGHT, included with this distribution.
*
*/
/* 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 */
#ifdef MAXPATHLEN
#define NFILEN MAXPATHLEN /* # of bytes, file name */
#else
#define NFILEN 80 /* # of bytes, file name */
#endif
#define NBUFN 16 /* # of bytes, buffer name */
#define NLINE 256 /* # of bytes, line */
#define NSTRING 256 /* # of bytes, string buffers */
#define NPAT 80 /* # of bytes, pattern */
#define FARAWAY 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 defined(DOS) || defined(OS2)
#define MENU 0x2000 /* Menu command */
#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 */
#define QBOBUF 0x0004 /* Start with cursor at BOL */
#define QNODQT 0x0008 /* Don't accept double quotes */
#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 FIOSYM 9 /* File is a symbolic link */
#define FIOPER 10 /* Generic permission denied */
/* for can_access (access) function */
#define EXECUTE_ACCESS 01 /* These five are */
#define WRITE_ACCESS 02 /* for the calls */
#define READ_ACCESS 04 /* to access() */
#define ACCESS_EXISTS 00 /* <etc> */
#define EDIT_ACCESS 06 /* (this is r+w access) */
#define OWNER_ONLY 010 /* open with mode 0600 */
#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 CFSRCH 0x0008 /* Last command was WhereIs */
#define CFFLBF 0x0010 /* Last cmd was full buf fill */
#define BACKSPACE '\b' /* backspace character */
#define TAB '\t' /* tab character */
#define RETURN '\r' /* carriage return char */
#define LINE_FEED '\n' /* line feed character */
#define FORMFEED '\f' /* form feed (^L) char */
#define COMMA ',' /* comma character */
#define SPACE ' ' /* space character */
#define ESCAPE '\033' /* the escape */
#define BELL '\007' /* the bell */
#define LPAREN '(' /* left parenthesis */
#define RPAREN ')' /* right parenthesis */
#define BSLASH '\\' /* back slash */
#define QUOTE '"' /* double quote char */
#define DEL '\177' /* delete */
/*
* macros to help filter character input
*/
#define LOBIT_CHAR(C) ((C) > 0x1f && (C) < 0x7f)
#define HIBIT_CHAR(C) ((C) > 0x7f && (C) <= 0xff)
#define HIBIT_OK(C) (!(gmode & MDHBTIGN))
#define VALID_KEY(C) (LOBIT_CHAR(C) || (HIBIT_OK(C) && HIBIT_CHAR(C)))
#define ctrl(c) ((c) & 0x1f) /* control character mapping */
#define STDIN_FD 0
#define STDOUT_FD 1
#define STDERR_FD 2
/*
* Placeholders for keymenu tags used in some ports (well, only in the
* windows port for now) to turn on commands in the Menu Bar.
*/
#ifndef KS_OSDATAVAR
#define KS_OSDATAVAR
#define KS_OSDATAGET(X)
#define KS_OSDATASET(X, Y)
#define KS_NONE
#define KS_VIEW
#define KS_EXPUNGE
#define KS_ZOOM
#define KS_SORT
#define KS_HDRMODE
#define KS_MAINMENU
#define KS_FLDRLIST
#define KS_FLDRINDEX
#define KS_COMPOSER
#define KS_PREVPAGE
#define KS_PREVMSG
#define KS_NEXTMSG
#define KS_ADDRBOOK
#define KS_WHEREIS
#define KS_PRINT
#define KS_REPLY
#define KS_FORWARD
#define KS_BOUNCE
#define KS_DELETE
#define KS_UNDELETE
#define KS_FLAG
#define KS_SAVE
#define KS_EXPORT
#define KS_TAKEADDR
#define KS_SELECT
#define KS_APPLY
#define KS_POSTPONE
#define KS_SEND
#define KS_CANCEL
#define KS_ATTACH
#define KS_TOADDRBOOK
#define KS_READFILE
#define KS_JUSTIFY
#define KS_ALTEDITOR
#define KS_GENERALHELP
#define KS_SCREENHELP
#define KS_EXIT
#define KS_NEXTPAGE
#define KS_SAVEFILE
#define KS_CURPOSITION
#define KS_GOTOFLDR
#define KS_JUMPTOMSG
#define KS_RICHHDR
#define KS_EXITMODE
#define KS_REVIEW
#define KS_KEYMENU
#define KS_SELECTCUR
#define KS_UNDO
#define KS_SPELLCHK
#endif
/*
* 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 "." */
int w_doto; /* Byte offset for "." */
struct LINE *w_markp; /* Line containing "mark" */
int w_marko; /* Byte offset for "mark" */
struct LINE *w_imarkp; /* INTERNAL Line with "mark" */
int w_imarko; /* INTERNAL "mark" byte offset */
signed char w_toprow; /* Origin 0 top row of window */
signed 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 */
int b_doto; /* Offset of "." in above LINE */
struct LINE *b_markp; /* The same as the above two, */
int b_marko; /* but for the "mark" */
struct LINE *b_linep; /* Link to the header LINE */
long b_linecnt; /* Lines in buffer (mswin only) */
long b_mode; /* editor mode of this buffer */
char b_active; /* window activated flag */
char b_nwnd; /* Count of windows on buffer */
char b_flag; /* Flags */
char b_fname[NFILEN]; /* File name */
char b_bname[NBUFN]; /* Buffer name */
} BUFFER;
#define BFTEMP 0x01 /* Internal temporary buffer */
#define BFCHG 0x02 /* Changed since last write */
#define BFWRAPOPEN 0x04 /* Wordwrap should open new line */
/*
* 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. */
int 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;
#define RGBLEN 11
#define MAXCOLORLEN 11 /* longest string a color can be */
typedef struct COLOR_PAIR {
char fg[MAXCOLORLEN+1];
char bg[MAXCOLORLEN+1];
} COLOR_PAIR;
#define COL_BLACK 0
#define COL_RED 1
#define COL_GREEN 2
#define COL_YELLOW 3
#define COL_BLUE 4
#define COL_MAGENTA 5
#define COL_CYAN 6
#define COL_WHITE 7
#define DEFAULT_NORM_FORE COL_BLACK
#define DEFAULT_NORM_BACK COL_CYAN
/* flags for pico_set_color() */
#define PSC_NONE 0x0
#define PSC_NORM 0x1
#define PSC_REV 0x2
#define PSC_RET 0x4 /* return an allocated copy of previous color */
/* flags for color_options */
#define COLOR_ANSI8_OPT 0x01
#define COLOR_ANSI16_OPT 0x02
/* styles for pico_apply_rev_color() */
#define IND_COL_FLIP 0
#define IND_COL_REV 1
#define IND_COL_FG 2
#define IND_COL_FG_NOAMBIG 3
#define IND_COL_BG 4
#define IND_COL_BG_NOAMBIG 5
/*
* 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 */
int l_size; /* Allocated size */
int l_used; /* Used size */
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 - 1. */
short t_ncol; /* Number of columns. */
short t_margin; /* min margin for extended lines*/
short t_scrsiz; /* size of scroll region " */
short t_mrow; /* Number of rows in menu */
int (*t_open)(); /* Open terminal at the start. */
int (*t_terminalinfo)(); /* Set up terminal info */
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;
/* sturcture used for key menu painting */
typedef struct {
char *name; /* key to display */
char *label; /* function name key envokes */
KS_OSDATAVAR /* port-specific data */
} KEYMENU;
typedef struct {
char *name; /* key to display */
char *label; /* function name key envokes */
int key; /* what to watch for and return */
KS_OSDATAVAR /* port-specific data */
} EXTRAKEYS;
typedef struct lmlist {
char *dir;
char *fname;
char size[32];
struct lmlist *next;
} LMLIST;
typedef struct VIDEO {
short v_flag; /* Flags */
CELL v_text[1]; /* Screen data. */
} VIDEO;
typedef struct _file_io_data {
FILE *fp; /* stdio stream into file */
long flags; /* state flags */
char *name; /* pointer to file name */
} FIOINFO;
#define FIOINFO_READ 0x01
#define FIOINFO_WRITE 0x02
#ifdef MOUSE
/* Test if mouse position (R, C) is in menu item (X) */
#define M_ACTIVE(R, C, X) (((unsigned)(R)) >= (X)->tl.r \
&& ((unsigned)(R)) <= (X)->br.r \
&& ((unsigned)(C)) >= (X)->tl.c \
&& ((unsigned)(C)) < (X)->br.c)
#endif /* MOUSE */
#endif /* ESTRUCT_H */