/* ELLE - Copyright 1982, 1984 by Ken Harrenstien, SRI International * This software is quasi-public; it may be used freely with * like software, but may NOT be sold or made part of licensed * products without permission of the author. */ /* * ELLE.H Global ELLE definitions */ #ifndef EXT #define EXT extern /* Default assumes these are referencing decls */ #endif /* Make identifiers unique in 1st 6 chars as per ANSI rule for externals */ #define tvc_cin tvccin #define tvc_cdn tvccdn #define tvc_lin tvclin #define tvc_ldn tvcldn #define ev_fno1 evfno1 #define ev_fno2 evfno2 #define ev_fnn1 evfnn1 #define ev_fnn2 evfnn2 #define ask_sall asksal /* eebuff.c */ #define ask_save asksav #define buf_tmod buftmo #define buf_tmat buftma #define e_gobob egobob /* eeedit.c */ #define e_gobol egobol #define e_goeob egoeob #define e_goeol egoeol #define fill_prefix filpfx /* eefill.c */ #define fill_plen filpln #define fill_cur_line filcln #define kill_ptr kilptr /* eef3.c */ #define kill_push kilpsh #define ed_insert edinst /* eefed.c */ #define ed_insn edinsn #define ed_deln eddeln #define ed_delete eddele #define f_fillreg ffilrg /* eejust.c */ #define f_fillpara ffilpa #include "eesite.h" /* Insert site-dependent flags and parameters */ #include "sb.h" /* Insert SB package definitions */ #include "eeprof.h" /* Insert user profile definition. This is a * separate file so ELLEC can use it too. */ #include "eefidx.h" /* Insert desired function defs */ /* ELLE Compile-time parameter defaults */ #ifndef KILL_LEN #define KILL_LEN 8 /* Size of kill ring */ #endif #ifndef MAXHT #define MAXHT 72 /* Height (# lines) of largest screen we'll suport */ #endif #ifndef MAXLINE #define MAXLINE 132 /* Width (# chars) of largest screen we'll support */ #endif #ifndef FNAMELEN #define FNAMELEN 14 /* Sys-dep: Max size of last filename component */ #endif /* Check FNAMSIZ if you change this. */ #ifndef FNAMSIZ #define FNAMSIZ 100 /* Sys-dep: Max size of complete filename */ #endif /* This must be at least as large as FNAMELEN! */ #ifndef ISRCHLIM #define ISRCHLIM 50 /* Max # of chars to allow I-search on */ #endif #ifndef TOBFSIZ #define TOBFSIZ 80 /* Size of TTY output buffer */ #endif #ifndef TIBFSIZ #define TIBFSIZ 50 /* Size of TTY input buffer */ #endif #ifndef ECHOLINES #define ECHOLINES 1 /* # of lines for echo area (below mode line) */ #endif #ifndef MAXARGFILES #define MAXARGFILES 2 /* # of filename args OK at startup */ #endif /* ELLE initialized variables. * Initial values are defined in EEVINI.C, but the vars must be * declared here as well so that references from all modules will * compile correctly. */ extern char *ev_verstr; /* String: Editor name and version # */ extern int ev_filmod; /* Default file creation mode */ extern char *ev_fno1,*ev_fno2; /* Pre, postfix for "old" filenames */ extern char *ev_fnn1,*ev_fnn2; /* Pre, postfix for "new" filenames */ extern int ev_fcolumn; /* Fill Column variable */ #if FX_INDCOMM extern int ev_ccolumn; /* Comment Column variable */ #endif extern int ev_nwpct, ev_mvpct; /* New window selection percentages */ #if FX_SOWIND extern int ev_modwso; /* Initial mode window standout flag */ #endif #if FX_2MODEWINDS extern int ev_2modws; /* Initial setting of 2-mode-window flag */ #endif extern char *ev_markshow; /* String to show when Set Mark done */ extern char *ev_helpfile; /* Location of ELLE help file */ extern char *ev_profile; /* Filename of ELLE binary user profile */ extern struct profile def_prof; /* ELLE default user profile */ /* Global variables */ EXT chroff cur_dot; /* Current dot */ EXT chroff mark_dot; /* Dot for mark */ EXT int mark_p; /* flag indicating whether mark exists */ EXT int this_cmd, last_cmd; /* Command type */ EXT int unrchf; /* Stuffed character back for readcommand */ EXT int exp; /* Numeric argument for commands */ EXT int exp_p; /* Flag meaning an arg was given */ EXT int pgoal; /* Permanent goal column */ EXT int goal; EXT char *srch_str; /* Last search string specified (0 = none) */ EXT int srch_len; /* Length of srch_str string */ EXT int ask_len; /* Length of last string returned by "ask" */ EXT char *homedir; /* User's home directory */ EXT int kill_ptr; /* Index into kill ring */ extern SBSTR *kill_ring[]; /* Kill ring table (allocated in eevini) */ /* Editor Command types */ #define KILLCMD 1 /* Kill command, for kill merging */ #define ARGCMD 2 /* Argument-setter, for main loop */ #define YANKCMD 3 /* Yank command, for yankpop */ #define LINECMD 4 /* Next or previous line goal hacking */ #if IMAGEN #define INSCMD 5 /* Simple char-insert command, for autowrap */ #endif /*IMAGEN*/ /* Misc char definitions */ #define CTRL(ch) (037&ch) #define BELL ('\007') /* Will become \a in ANSI */ #define BS ('\b') #define TAB ('\t') #define LF ('\n') #define FF ('\f') #define CR ('\r') #define ESC ('\033') #define SP (' ') #define DEL ('\177') #define CB_META (0200) /* Meta bit in command char */ #define CB_EXT (0400) /* Extend bit in command char */ #define METIZER ESC #define EXTIZER CTRL('X') /* Terminal parameters - set at runtime startup */ EXT char *tv_stype; /* Terminal type string specified by user/system */ EXT int scr_ht; /* # lines of main screen area */ EXT int scr_wid; /* # columns of screen */ EXT int scr_wd0; /* scr_wid - 1 (for 0-origin stuff) */ EXT int trm_ospeed; /* Output speed index */ EXT int tvc_pos; /* Cost for absolute move (# of output chars) */ EXT int tvc_bs; /* Cost for backspace */ EXT int tvc_ci, tvc_cin; /* Char ins cost per call, cost per column */ EXT int tvc_cd, tvc_cdn; /* Char del " " " " " " */ EXT int tvc_li, tvc_lin; /* Line ins cost per call, cost per line */ EXT int tvc_ld, tvc_ldn; /* Line del " " " " " " */ EXT int trm_flags; /* Terminal capabilities - bit flags */ /* Maybe change to word vars someday (faster) */ #define TF_IDLIN 01 /* Has I/D line */ #define TF_IDCHR 02 /* Has I/D char */ #define TF_SO 04 /* Has usable standout mode */ #define TF_CLEOL 010 /* Has clear-to-eol */ #define TF_METAKEY 020 /* Has meta key */ #define TF_DIRVID 040 /* Has direct-video type interface */ /* Redisplay definitions */ EXT int curs_lin; /* Line # of current cursor (0 origin) */ EXT int curs_col; /* Column # of current cursor (0 origin) */ EXT int rd_type; /* Global var: holds redisplay "hints" */ #define redp(n) rd_type |= (n) #define RD_SCREEN 01 /* Clear everything and redisplay */ #define RD_WINDS 02 /* Check all windows for changes (b/emod) */ #define RD_MODE 04 /* Mode line has changed, update it. */ #define RD_WINRES 0400 /* Assume all of window was changed (clear b/emod) */ #define RD_MOVE 010 /* Cursor has moved */ #define RD_UPDWIN 020 /* Window fixed, must update modified screen lines */ /*#define RD_ICHR 0 *//* Hint: Char insert done */ /*#define RD_DCHR 0 *//* Hint: Char del done */ #define RD_ILIN 0100 /* Hint: Line insert done */ #define RD_DLIN 0200 /* Hint: Line del done */ /* #define RD_MOVWIN 02000 *//* Window should be re-positioned */ #define RD_FIXWIN 02000 /* Window needs fixing (call fix_wind) */ #define RD_TMOD 04000 /* Text changed in this window, check it. */ #define RD_WINCLR 010000 /* Clear window with CLEOLs (not yet) */ #define RD_CHKALL 020000 /* Check all windows for redisplay flags */ #if IMAGEN #define RD_REDO 040000 /* Just re-do the entire window, don't think */ #endif /*IMAGEN*/ /* Flags with global effects, only seen in rd_type */ #define RDS_GLOBALS (RD_SCREEN|RD_MODE|RD_WINDS|RD_CHKALL) /* Flags which are allowed per-window (in w_redp) */ #define RDS_WINFLGS (~RDS_GLOBALS) /* Flags which force FIX_WIND() to do something */ #define RDS_DOFIX (RD_WINRES|RD_TMOD|RD_FIXWIN|RD_MOVE) #define CI_CLINE '!' /* Char indicator for continued line */ #define CI_CNTRL '^' /* Char indicator for control chars */ #define CI_META '~' /* Char indicator for meta-bit (8th) set */ #define CI_TOP '|' /* Char indicator for top-bit (9th) set */ #define MAXCHAR (8+3) /* Longest char representation (TAB) + slop */ /* Definitions for screen structures */ struct scr_line { chroff sl_boff; /* Ptr to start of line's text in buffer */ int sl_len; /* # buffer chars in line (incl NL) */ char *sl_line; /* Ptr to screen image of line */ int sl_col; /* # chars in image == # columns used */ char sl_flg; /* Flags - set if this line modified */ char sl_cont; /* If line being continued on next, this */ /* contains 1 plus # extra chars (if any) */ /* stored at end of this line which shd be */ /* put at beg of next line. */ char *sl_nlin; /* New screen image line if modified flag set */ int sl_ncol; }; /* sl_flg definitions */ #define SL_MOD 01 /* New line exists, must update to it */ #define SL_EOL 02 /* Buffer line ends with EOL */ #define SL_CSO 04 /* Current screen line is in standout mode */ #define SL_NSO 010 /* New screen line is in standout mode */ #if IMAGEN #define SL_REDO 0100 /* Line should be redone completely */ #endif /*IMAGEN*/ extern struct scr_line *scr[]; /* Screen line ptrs (allocated in e_vinit) */ /* Buffer stuff */ struct buffer { SBBUF b_sb; /* MUST be 1st thing! */ struct buffer *b_next; /* ptr to next in chain */ char *b_name; /* text name */ char *b_fn; /* filename */ chroff b_dot; /* point (dot) */ int b_flags; /* misc. bits */ struct majmode *b_mode; /* Mode of buffer */ #if IMAGEN long b_mtime; /* Last file modification time */ #endif /*IMAGEN*/ }; /* b_flags definitions */ #define B_MODIFIED 01 /* Buffer is modified */ #define B_EOLCRLF 0200 /* On = CRLF mode, off = LF mode */ #if IMAGEN #define B_PERMANENT 002 /* buffer cannot be killed */ #define B_CMODE 004 /* "C" mode (HACK HACK) */ #define B_BACKEDUP 010 /* Buffer has been backed up once */ #define B_TEXTMODE 020 /* Text mode (auto-wrap, basically) */ #define B_QUERYREP 040 /* Query-replace mode (qualifier) */ #endif /*IMAGEN*/ /* Handy macro to check EOL mode */ #define eolcrlf(buf) (((struct buffer *)buf)->b_flags&B_EOLCRLF) /* Buffer pointers */ EXT struct buffer *buf_head, /* head of list of all buffers */ *cur_buf, /* buffer we are editing now */ *last_buf, /* buffer we were editing before */ *lines_buf; /* buffer for sep_win */ /* Window stuff */ struct window { struct window *w_next; /* ptr to next in chain */ int w_flags; /* Window flags */ int w_pos; /* index of top line */ int w_ht; /* number of lines */ struct buffer *w_buf; /* buffer in this window */ int w_pct; /* % of buffer window is at */ int w_redp; /* Redisplay hints */ chroff w_topldot; /* line currently at top of window */ chroff w_dot; /* Saved dot while not cur_win */ chroff w_bmod; /* Lower bound of modified text */ chroff w_emod; /* Upper bound of modified text */ /* (offset from end of buffer!) */ chroff w_oldz; /* Buffer len as of last update */ }; /* Window flags */ #define W_STANDOUT 01 /* Use terminal's standout mode for window */ #define W_MODE 02 /* This is a mode window */ /* Window pointers */ EXT struct window *win_head, /* head of list of all windows */ *cur_win, /* window we are now in */ *user_win, /* current user window */ *oth_win, /* "other" user window */ *mode_win, /* window for mode line */ *ask_win, /* window for ask (echo) area */ *sep_win; /* window for separation dashes */ /* Major Mode stuff. Each buffer has its own major mode. * Only one major mode may be in effect at any time. */ struct majmode { char *mjm_name; /* Simple for now */ }; EXT struct majmode *fun_mode; /* Fundamental mode - the default */ EXT struct majmode *cur_mode; /* Current major mode */ /* Minor modes are currently implemented by means of flag variables * which have global effects (regardless of buffer or major mode). * Each variable has the name "x_mode" where x is the name of the minor * mode. These are declared in the modules containing their support code. * In the future this may be generalized along the lines of major modes. */ /* Miscellaneous debug stuff */ EXT int dbgval; /* Set nonzero to do verify stuff */ EXT int dbg_isw; /* Set to enable interrupts if possible */ #if IMAGEN EXT int dbg_redp; /* Set to debug redisplay algorithms */ #endif /*IMAGEN*/ extern int errno; /* V7 routines for setexit/reset emulation */ #if !(V6) #include EXT jmp_buf env_main; #define setexit(a) setjmp(env_main) #define reset(a) longjmp(env_main,a) #endif /*-V6*/ /* Declare functions returning CHROFF values (offsets into a buffer) */ extern chroff e_dot(),e_nldot(),e_pldot(),e_boldot(),e_eoldot(), e_alldot(),ex_boldot(),ex_alldot(), ex_blen(),e_blen(),ex_dot(),e_wdot(); extern SBSTR *e_copyn(); /* Some other commonly needed declarations */ extern char *memalloc(), *ask(), *dottoa(), *strdup(); #if !(V6) extern char *getenv(); #endif /*-V6*/ #include "eeproto.h" /* function prototypes */