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/* ESTRUCT: Structure and preprocesser defined for MicroEMACS 3.9 written by Dave G. Conroy modified by Steve Wilhite, George Jones substantially modified by Daniel Lawrence */ #ifdef LATTICE #undef LATTICE /* don't use their definitions...use ours */ #endif #ifdef MSDOS #undef MSDOS #endif #ifdef CPM #undef CPM #endif #ifdef AMIGA #undef AMIGA #endif #ifdef EGA #undef EGA #endif /* Program Identification..... PROGNAME should always be MicroEMACS for a distibrution unmodified version. People using MicroEMACS as a shell for other products should change this to reflect their product. Macros can query this via the $progname variable */ #define PROGNAME "MicroEMACS" #define VERSION "3.9" /* Machine/OS definitions */ #define AMIGA 0 /* AmigaDOS */ #define ST520 0 /* ST520, TOS */ #define MSDOS 1 /* MS-DOS */ #define V7 0 /* V7 UNIX or Coherent or BSD4.2*/ #define BSD 0 /* UNIX BSD 4.2 and ULTRIX */ #define USG 0 /* UNIX system V */ #define VMS 0 /* VAX/VMS */ #define CPM 0 /* CP/M-86 */ #define FINDER 0 /* Macintosh OS */ /* Compiler definitions */ #define UNIX 0 /* a random UNIX compiler */ #define MWC86 0 /* marc williams compiler */ #define LATTICE 0 /* Lattice 2.14 thruough 3.0 compilers */ #define AZTEC 1 /* Aztec C 3.20e */ #define MSC 0 /* MicroSoft C compile version 3 & 4 */ #define TURBO 0 /* Turbo C/MSDOS */ /* Debugging options */ #define RAMSIZE 0 /* dynamic RAM memory usage tracking */ #define RAMSHOW 0 /* auto dynamic RAM reporting */ /* Special keyboard definitions */ #define WANGPC 0 /* WangPC - mostly escape sequences */ /* Terminal Output definitions */ #define ANSI 0 /* ANSI escape sequences */ #define HP150 0 /* HP150 screen driver */ #define HP110 0 /* HP110 screen driver */ #define VMSVT 0 /* various VMS terminal entries */ #define VT52 0 /* VT52 terminal (Zenith). */ #define VT100 0 /* Handle VT100 style keypad. */ #define RAINBOW 0 /* Use Rainbow fast video. */ #define TERMCAP 0 /* Use TERMCAP */ #define IBMPC 1 /* IBM-PC CGA/MONO/EGA driver */ #define DG10 0 /* Data General system/10 */ #define TIPC 0 /* TI Profesional PC driver */ #define Z309 0 /* Zenith 100 PC family driver */ #define MAC 0 /* Macintosh */ #define ATARI 0 /* Atari 520/1040ST screen */ /* Configuration options */ #define CVMVAS 1 /* arguments to page forward/back in pages */ #define CLRMSG 0 /* space clears the message line with no insert */ #define CFENCE 1 /* fench matching in CMODE */ #define TYPEAH 1 /* type ahead causes update to be skipped */ #define DEBUGM 1 /* $debug triggers macro debugging */ #define VISMAC 0 /* update display during keyboard macros */ #define CTRLZ 0 /* add a ^Z at end of files under MSDOS only */ #define REVSTA 1 /* Status line appears in reverse video */ #define COLOR 1 /* color commands and windows */ #define FILOCK 0 /* file locking under unix BSD 4.2 */ #define ISRCH 0 /* Incremental searches like ITS EMACS */ #define WORDPRO 1 /* Advanced word processing features */ #define FLABEL 0 /* function key label code [HP150] */ #define APROP 1 /* Add code for Apropos command */ #define CRYPT 1 /* file encryption enabled? */ #define MAGIC 1 /* include regular expression matching? */ #define AEDIT 1 /* advanced editing options: en/detabbing */ #define PROC 1 /* named procedures */ #define ASCII 1 /* always using ASCII char sequences for now */ #define EBCDIC 0 /* later IBM mainfraim versions will use EBCDIC */ /* System dependant library redefinitions, structures and includes */ #if TURBO #include <dos.h> #include <mem.h> #undef peek #undef poke #define peek(a,b,c,d) movedata(a,b,FP_SEG(c),FP_OFF(c),d) #define poke(a,b,c,d) movedata(FP_SEG(c),FP_OFF(c),a,b,d) #endif #if VMS #define atoi xatoi #define abs xabs #define getname xgetname #endif #if LATTICE #define unsigned #endif #if AZTEC #undef fputc #undef fgetc #if MSDOS #define fgetc a1getc #else #define fgetc agetc #endif #define fputc aputc #define int86 sysint #define intdos(a, b) sysint(33, a, b) #define inp inportb #define outp outportb struct XREG { int ax,bx,cx,dx,si,di; }; struct HREG { char al,ah,bl,bh,cl,ch,dl,dh; }; union REGS { struct XREG x; struct HREG h; }; #endif #if MSDOS & MWC86 #include <dos.h> #define int86(a, b, c) intcall(b, c, a) #define inp in struct XREG { int ax,bx,cx,dx,si,di,ds,es,flags; }; struct HREG { char al,ah,bl,bh,cl,ch,dl,dh; int ds,es,flags; }; union REGS { struct XREG x; struct HREG h; }; #endif #if MSDOS & MSC #include <dos.h> #include <memory.h> #define peek(a,b,c,d) movedata(a,b,FP_SEG(c),FP_OFF(c),d) #define poke(a,b,c,d) movedata(FP_SEG(c),FP_OFF(c),a,b,d) #define movmem(a, b, c) memcpy(b, a, c) #endif #if MSDOS & LATTICE #undef CPM #undef LATTICE #include <dos.h> #undef CPM #endif #if VMS #define unlink(a) delete(a) #endif /* define some ability flags */ #if IBMPC | Z309 #define MEMMAP 1 #else #define MEMMAP 0 #endif #if ((MSDOS) & (LATTICE | AZTEC | MSC | TURBO)) | V7 | USG | BSD #define ENVFUNC 1 #else #define ENVFUNC 0 #endif /* internal constants */ #define NBINDS 256 /* max # of bound keys */ #define NFILEN 80 /* # of bytes, file name */ #define NBUFN 16 /* # of bytes, buffer name */ #define NLINE 256 /* # of bytes, input line */ #define NSTRING 128 /* # of bytes, string buffers */ #define NKBDM 256 /* # of strokes, keyboard macro */ #define NPAT 128 /* # of bytes, pattern */ #define HUGE 1000 /* Huge number */ #define NLOCKS 100 /* max # of file locks active */ #define NCOLORS 8 /* number of supported colors */ #define KBLOCK 250 /* sizeof kill buffer chunks */ #define NBLOCK 16 /* line block chunk size */ #define NVSIZE 10 /* max #chars in a var name */ #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 (function keys) */ #ifdef FALSE #undef FALSE #endif #ifdef TRUE #undef TRUE #endif #define FALSE 0 /* False, no, bad, etc. */ #define TRUE 1 /* True, yes, good, etc. */ #define ABORT 2 /* Death, ^G, abort, etc. */ #define FAILED 3 /* not-quite fatal false return */ #define STOP 0 /* keyboard macro not in use */ #define PLAY 1 /* playing */ #define RECORD 2 /* recording */ /* Directive definitions */ #define DIF 0 #define DELSE 1 #define DENDIF 2 #define DGOTO 3 #define DRETURN 4 #define DENDM 5 #define DWHILE 6 #define DENDWHILE 7 #define DBREAK 8 #define DFORCE 9 #define NUMDIRS 10 /* * PTBEG, PTEND, FORWARD, and REVERSE are all toggle-able values for * the scan routines. */ #define PTBEG 0 /* Leave the point at the beginning on search */ #define PTEND 1 /* Leave the point at the end on search */ #define FORWARD 0 /* forward direction */ #define REVERSE 1 /* backwards direction */ #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 FIOMEM 4 /* File I/O, out of memory */ #define FIOFUN 5 /* File I/O, eod of file/bad line*/ #define CFCPCN 0x0001 /* Last command was C-P, C-N */ #define CFKILL 0x0002 /* Last command was a kill */ #define BELL 0x07 /* a bell character */ #define TAB 0x09 /* a tab character */ #if V7 | USG | BSD #define PATHCHR ':' #else #define PATHCHR ';' #endif #define INTWIDTH sizeof(int) * 3 /* Macro argument token types */ #define TKNUL 0 /* end-of-string */ #define TKARG 1 /* interactive argument */ #define TKBUF 2 /* buffer argument */ #define TKVAR 3 /* user variables */ #define TKENV 4 /* environment variables */ #define TKFUN 5 /* function.... */ #define TKDIR 6 /* directive */ #define TKLBL 7 /* line label */ #define TKLIT 8 /* numeric literal */ #define TKSTR 9 /* quoted string literal */ #define TKCMD 10 /* command name */ /* Internal defined functions */ #define nextab(a) (a & ~7) + 8 #ifdef abs #undef abs #endif /* DIFCASE represents the integer difference between upper and lower case letters. It is an xor-able value, which is fortunate, since the relative positions of upper to lower case letters is the opposite of ascii in ebcdic. */ #ifdef islower #undef islower #endif #if ASCII #define DIFCASE 0x20 #define isletter(c) (('a' <= c && 'z' >= c) || ('A' <= c && 'Z' >= c)) #define islower(c) (('a' <= c && 'z' >= c)) #endif #if EBCDIC #define DIFCASE 0x40 #define isletter(c) (('a' <= c && 'i' >= c) || ('j' <= c && 'r' >= c) || ('s' <= c && 'z' >= c) || ('A' <= c && 'I' >= c) || ('J' <= c && 'R' >= c) || ('S' <= c && 'Z' >= c)) #define islower(c) (('a' <= c && 'i' >= c) || ('j' <= c && 'r' >= c) || ('s' <= c && 'z' >= c)) #endif /* Dynamic RAM tracking and reporting redefinitions */ #if RAMSIZE #define malloc allocate #define free release #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 "." */ short w_doto; /* Byte offset for "." */ struct LINE *w_markp; /* Line containing "mark" */ short w_marko; /* Byte offset for "mark" */ 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. */ #if COLOR char w_fcolor; /* current forground color */ char w_bcolor; /* current background color */ #endif } 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. */ #define WFCOLR 0x20 /* Needs a color change */ /* * 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 associated 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 */ int b_mode; /* editor mode of this buffer */ char b_fname[NFILEN]; /* File name */ char b_bname[NBUFN]; /* Buffer name */ #if CRYPT char b_key[NPAT]; /* current encrypted key */ #endif } BUFFER; #define BFINVS 0x01 /* Internal invisable buffer */ #define BFCHG 0x02 /* Changed since last write */ /* mode flags */ #define NUMMODES 9 /* # of defined modes */ #define MDWRAP 0x0001 /* word wrap */ #define MDCMOD 0x0002 /* C indentation and fence match*/ #define MDSPELL 0x0004 /* spell error parcing */ #define MDEXACT 0x0008 /* Exact matching for searches */ #define MDVIEW 0x0010 /* read-only buffer */ #define MDOVER 0x0020 /* overwrite mode */ #define MDMAGIC 0x0040 /* regular expresions in search */ #define MDCRYPT 0x0080 /* encrytion mode active */ #define MDASAVE 0x0100 /* auto-save mode */ /* * 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; /* * 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 */ char 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)]&0xFF) #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_mrow; /* max number of rows allowable */ short t_nrow; /* current number of rows used */ short t_mcol; /* max Number of columns. */ short t_ncol; /* current Number of columns. */ short t_margin; /* min margin for extended lines*/ short t_scrsiz; /* size of scroll region " */ int t_pause; /* # times thru update to pause */ int (*t_open)(); /* Open terminal at the start. */ int (*t_close)(); /* Close terminal at end. */ int (*t_kopen)(); /* Open keyboard */ int (*t_kclose)(); /* close keyboard */ 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 */ int (*t_rez)(); /* change screen resolution */ #if COLOR int (*t_setfor)(); /* set forground color */ int (*t_setback)(); /* set background color */ #endif } TERM; /* TEMPORARY macros for terminal I/O (to be placed in a machine dependant place later) */ #define TTopen (*term.t_open) #define TTclose (*term.t_close) #define TTkopen (*term.t_kopen) #define TTkclose (*term.t_kclose) #define TTgetc (*term.t_getchar) #define TTputc (*term.t_putchar) #define TTflush (*term.t_flush) #define TTmove (*term.t_move) #define TTeeol (*term.t_eeol) #define TTeeop (*term.t_eeop) #define TTbeep (*term.t_beep) #define TTrev (*term.t_rev) #define TTrez (*term.t_rez) #if COLOR #define TTforg (*term.t_setfor) #define TTbacg (*term.t_setback) #endif /* 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; /* The editor holds deleted text chunks in the KILL buffer. The kill buffer is logically a stream of ascii characters, however due to its unpredicatable size, it gets implemented as a linked list of chunks. (The d_ prefix is for "deleted" text, as k_ was taken up by the keycode structure) */ typedef struct KILL { struct KILL *d_next; /* link to next chunk, NULL if last */ char d_chunk[KBLOCK]; /* deleted text */ } KILL; /* When emacs' command interpetor needs to get a variable's name, rather than it's value, it is passed back as a VDESC variable description structure. The v_num field is a index into the appropriate variable table. */ typedef struct VDESC { int v_type; /* type of variable */ int v_num; /* ordinal pointer to variable in list */ } VDESC; /* The !WHILE directive in the execution language needs to stack references to pending whiles. These are stored linked to each currently open procedure via a linked list of the following structure */ typedef struct WHBLOCK { LINE *w_begin; /* ptr to !while statement */ LINE *w_end; /* ptr to the !endwhile statement*/ int w_type; /* block type */ struct WHBLOCK *w_next; /* next while */ } WHBLOCK; #define BTWHILE 1 #define BTBREAK 2 /* * Incremental search defines. */ #if ISRCH #define CMDBUFLEN 256 /* Length of our command buffer */ #define IS_ABORT 0x07 /* Abort the isearch */ #define IS_BACKSP 0x08 /* Delete previous char */ #define IS_TAB 0x09 /* Tab character (allowed search char) */ #define IS_NEWLINE 0x0D /* New line from keyboard (Carriage return) */ #define IS_QUOTE 0x11 /* Quote next character */ #define IS_REVERSE 0x12 /* Search backward */ #define IS_FORWARD 0x13 /* Search forward */ #define IS_VMSQUOTE 0x16 /* VMS quote character */ #define IS_VMSFORW 0x18 /* Search forward for VMS */ #define IS_QUIT 0x1B /* Exit the search */ #define IS_RUBOUT 0x7F /* Delete previous character */ /* IS_QUIT is no longer used, the variable metac is used instead */ #endif #if MAGIC /* * Defines for the metacharacters in the regular expressions in search * routines. */ #define MCNIL 0 /* Like the '\0' for strings.*/ #define LITCHAR 1 #define ANY 2 #define CCL 3 #define NCCL 4 #define BOL 5 #define EOL 6 #define CLOSURE 256 /* An or-able value.*/ #define MASKCL CLOSURE - 1 #define MC_ANY '.' /* 'Any' character (except newline).*/ #define MC_CCL '[' /* Character class.*/ #define MC_NCCL '^' /* Negate character class.*/ #define MC_RCCL '-' /* Range in character class.*/ #define MC_ECCL ']' /* End of character class.*/ #define MC_BOL '^' /* Beginning of line.*/ #define MC_EOL '$' /* End of line.*/ #define MC_CLOSURE '*' /* Closure - does not extend past newline.*/ #define MC_ESC '\\' /* Escape - suppress meta-meaning.*/ #define BIT(n) (1 << (n)) /* An integer with one bit set.*/ #define CHCASE(c) ((c) ^ DIFCASE) /* Toggle the case of a letter.*/ /* HICHAR - 1 is the largest character we will deal with. * HIBYTE represents the number of bytes in the bitmap. */ #define HICHAR 256 #define HIBYTE HICHAR >> 3 typedef char *BITMAP; typedef struct { short int mc_type; union { int lchar; BITMAP cclmap; } u; } MC; #endif 
