/* $OpenBSD: def.h,v 1.116 2011/01/23 00:45:03 kjell Exp $ */ /* This file is in the public domain. */ /* * This file is the general header file for all parts * of the Mg display editor. It contains all of the * general definitions and macros. It also contains some * conditional compilation flags. All of the per-system and * per-terminal definitions are in special header files. */ #include "sysdef.h" /* Order is critical. */ #include "ttydef.h" #include "chrdef.h" #ifdef NO_MACRO #ifndef NO_STARTUP #define NO_STARTUP /* NO_MACRO implies NO_STARTUP */ #endif #endif typedef int (*PF)(int, int); /* generally useful type */ /* * Table sizes, etc. */ #define NFILEN 1024 /* Length, file name. */ #define NBUFN NFILEN /* Length, buffer name. */ #define NLINE 256 /* Length, line. */ #define PBMODES 4 /* modes per buffer */ #define NKBDM 256 /* Length, keyboard macro. */ #define NPAT 80 /* Length, pattern. */ #define HUGE 1000 /* A rather large number. */ #define NSRCH 128 /* Undoable search commands. */ #define NXNAME 64 /* Length, extended command. */ #define NKNAME 20 /* Length, key names. */ #define NTIME 50 /* Length, timestamp string. */ /* * Universal. */ #define FALSE 0 /* False, no, bad, etc. */ #define TRUE 1 /* True, yes, good, etc. */ #define ABORT 2 /* Death, ^G, abort, etc. */ #define KCLEAR 2 /* clear echo area */ /* * These flag bits keep track of * some aspects of the last command. The CFCPCN * flag controls goal column setting. The CFKILL * flag controls the clearing versus appending * of data in the kill buffer. */ #define CFCPCN 0x0001 /* Last command was C-P, C-N */ #define CFKILL 0x0002 /* Last command was a kill */ #define CFINS 0x0004 /* Last command was self-insert */ /* * File I/O. */ #define FIOSUC 0 /* Success. */ #define FIOFNF 1 /* File not found. */ #define FIOEOF 2 /* End of file. */ #define FIOERR 3 /* Error. */ #define FIOLONG 4 /* long line partially read */ #define FIODIR 5 /* File is a directory */ /* * Directory I/O. */ #define DIOSUC 0 /* Success. */ #define DIOEOF 1 /* End of file. */ #define DIOERR 2 /* Error. */ /* * Display colors. */ #define CNONE 0 /* Unknown color. */ #define CTEXT 1 /* Text color. */ #define CMODE 2 /* Mode line color. */ /* * Flags for keyboard invoked functions. */ #define FFUNIV 1 /* universal argument */ #define FFNEGARG 2 /* negative only argument */ #define FFOTHARG 4 /* other argument */ #define FFARG 7 /* any argument */ #define FFRAND 8 /* Called by other function */ /* * Flags for "eread". */ #define EFFUNC 0x0001 /* Autocomplete functions. */ #define EFBUF 0x0002 /* Autocomplete buffers. */ #define EFFILE 0x0004 /* " files (maybe someday) */ #define EFAUTO 0x0007 /* Some autocompletion on */ #define EFNEW 0x0008 /* New prompt. */ #define EFCR 0x0010 /* Echo CR at end; last read. */ #define EFDEF 0x0020 /* buffer contains default args */ #define EFNUL 0x0040 /* Null Minibuffer OK */ /* * Direction of insert into kill ring */ #define KNONE 0x00 #define KFORW 0x01 /* forward insert into kill ring */ #define KBACK 0x02 /* Backwards insert into kill ring */ #define KREG 0x04 /* This is a region-based kill */ /* * This structure holds the starting position * (as a line/offset pair) and the number of characters in a * region of a buffer. This makes passing the specification * of a region around a little bit easier. */ struct region { struct line *r_linep; /* Origin line address. */ int r_offset; /* Origin line offset. */ int r_lineno; /* Origin line number */ RSIZE r_size; /* Length in characters. */ }; /* * 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" structure. Each line contains 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. */ 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 */ char *l_text; /* Content of the line */ }; /* * The rationale behind these macros is that you * could (with some editing, like changing the type of a line * link from a "struct line *" to a "REFLINE", and fixing the commands * like file reading that break the rules) change the actual * storage representation of lines to use something fancy on * machines with small address spaces. */ #define lforw(lp) ((lp)->l_fp) #define lback(lp) ((lp)->l_bp) #define lgetc(lp, n) (CHARMASK((lp)->l_text[(n)])) #define lputc(lp, n, c) ((lp)->l_text[(n)]=(c)) #define llength(lp) ((lp)->l_used) #define ltext(lp) ((lp)->l_text) /* * All repeated structures are kept as linked lists of structures. * All of these start with a LIST structure (except lines, which * have their own abstraction). This will allow for * later conversion to generic list manipulation routines should * I decide to do that. It does mean that there are four extra * bytes per window. I feel that this is an acceptable price, * considering that there are usually only one or two windows. */ struct list { union { struct mgwin *l_wp; struct buffer *x_bp; /* l_bp is used by struct line */ struct list *l_nxt; } l_p; char *l_name; }; /* * Usual hack - to keep from uglifying the code with lotsa * references through the union, we #define something for it. */ #define l_next l_p.l_nxt /* * 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. */ struct mgwin { struct list w_list; /* List header */ struct buffer *w_bufp; /* Buffer displayed in window */ struct line *w_linep; /* Top line in the window */ struct line *w_dotp; /* Line containing "." */ struct line *w_markp; /* Line containing "mark" */ int w_doto; /* Byte offset for "." */ int 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_frame; /* #lines to reframe by. */ char w_rflag; /* Redisplay Flags. */ char w_flag; /* Flags. */ struct line *w_wrapline; int w_dotline; /* current line number of dot */ int w_markline; /* current line number of mark */ }; #define w_wndp w_list.l_p.l_wp #define w_name w_list.l_name /* * Window redisplay flags are set by command processors to * tell the display system what has happened to the buffer * mapped by the window. Setting "WFFULL" is always a safe thing * to do, but it may do more work than is necessary. Always try * to set the simplest action that achieves the required update. * Because commands set bits in the "w_flag", update will see * all change flags, and do the most general one. */ #define WFFRAME 0x01 /* Force reframe. */ #define WFMOVE 0x02 /* Movement from line to line. */ #define WFEDIT 0x04 /* Editing within a line. */ #define WFFULL 0x08 /* Do a full display. */ #define WFMODE 0x10 /* Update mode line. */ /* * Window flags */ #define WNONE 0x00 /* No special window options. */ #define WEPHEM 0x01 /* Window is ephemeral. */ struct undo_rec; TAILQ_HEAD(undoq, undo_rec); /* * 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_headp". */ struct buffer { struct list b_list; /* buffer list pointer */ struct buffer *b_altb; /* Link to alternate buffer */ struct line *b_dotp; /* Link to "." line structure */ struct line *b_markp; /* ditto for mark */ struct line *b_headp; /* Link to the header line */ struct maps_s *b_modes[PBMODES]; /* buffer modes */ int b_doto; /* Offset of "." in above line */ int b_marko; /* ditto for the "mark" */ short b_nmodes; /* number of non-fundamental modes */ char b_nwnd; /* Count of windows on buffer */ char b_flag; /* Flags */ char b_fname[NFILEN]; /* File name */ char b_cwd[NFILEN]; /* working directory */ struct fileinfo b_fi; /* File attributes */ struct undoq b_undo; /* Undo actions list */ int b_undopos; /* Where we were during last undo */ struct undo_rec *b_undoptr; int b_dotline; /* Line number of dot */ int b_markline; /* Line number of mark */ int b_lines; /* Number of lines in file */ }; #define b_bufp b_list.l_p.x_bp #define b_bname b_list.l_name /* Some helper macros, in case they ever change to functions */ #define bfirstlp(buf) (lforw((buf)->b_headp)) #define blastlp(buf) (lback((buf)->b_headp)) #define BFCHG 0x01 /* Changed. */ #define BFBAK 0x02 /* Need to make a backup. */ #ifdef NOTAB #define BFNOTAB 0x04 /* no tab mode */ #endif #define BFOVERWRITE 0x08 /* overwrite mode */ #define BFREADONLY 0x10 /* read only mode */ #define BFDIRTY 0x20 /* Buffer was modified elsewhere */ #define BFIGNDIRTY 0x40 /* Ignore modifications */ /* * This structure holds information about recent actions for the Undo command. */ struct undo_rec { TAILQ_ENTRY(undo_rec) next; enum { INSERT = 1, DELETE, BOUNDARY, MODIFIED, DELREG } type; struct region region; int pos; char *content; }; /* * Prototypes. */ /* tty.c X */ void ttinit(void); void ttreinit(void); void tttidy(void); void ttmove(int, int); void tteeol(void); void tteeop(void); void ttbeep(void); void ttinsl(int, int, int); void ttdell(int, int, int); void ttwindow(int, int); void ttnowindow(void); void ttcolor(int); void ttresize(void); volatile sig_atomic_t winch_flag; /* ttyio.c */ void ttopen(void); int ttraw(void); void ttclose(void); int ttcooked(void); int ttputc(int); void ttflush(void); int ttgetc(void); int ttwait(int); int charswaiting(void); /* dir.c */ void dirinit(void); int changedir(int, int); int showcwdir(int, int); int getcwdir(char *, size_t); /* dired.c */ struct buffer *dired_(char *); /* file.c X */ int fileinsert(int, int); int filevisit(int, int); int filevisitalt(int, int); int filevisitro(int, int); int poptofile(int, int); struct buffer *findbuffer(char *); int readin(char *); int insertfile(char *, char *, int); int filewrite(int, int); int filesave(int, int); int buffsave(struct buffer *); int makebkfile(int, int); int writeout(struct buffer *, char *); void upmodes(struct buffer *); size_t xbasename(char *, const char *, size_t); /* line.c X */ struct line *lalloc(int); int lrealloc(struct line *, int); void lfree(struct line *); void lchange(int); int linsert_str(const char *, int); int linsert(int, int); int lnewline_at(struct line *, int); int lnewline(void); int ldelete(RSIZE, int); int ldelnewline(void); int lreplace(RSIZE, char *); char * linetostr(const struct line *); /* yank.c X */ void kdelete(void); int kinsert(int, int); int kremove(int); int kchunk(char *, RSIZE, int); int killline(int, int); int yank(int, int); /* window.c X */ struct mgwin *new_window(struct buffer *); void free_window(struct mgwin *); int reposition(int, int); int redraw(int, int); int do_redraw(int, int, int); int nextwind(int, int); int prevwind(int, int); int onlywind(int, int); int splitwind(int, int); int enlargewind(int, int); int shrinkwind(int, int); int delwind(int, int); /* buffer.c */ int togglereadonly(int, int); struct buffer *bfind(const char *, int); int poptobuffer(int, int); int killbuffer(struct buffer *); int killbuffer_cmd(int, int); int savebuffers(int, int); int listbuffers(int, int); int addlinef(struct buffer *, char *, ...); #define addline(bp, text) addlinef(bp, "%s", text) int anycb(int); int bclear(struct buffer *); int showbuffer(struct buffer *, struct mgwin *, int); int augbname(char *, const char *, size_t); struct mgwin *popbuf(struct buffer *, int); int bufferinsert(int, int); int usebuffer(int, int); int notmodified(int, int); int popbuftop(struct buffer *, int); int getbufcwd(char *, size_t); int checkdirty(struct buffer *); /* display.c */ int vtresize(int, int, int); void vtinit(void); void vttidy(void); void update(void); int linenotoggle(int, int); /* echo.c X */ void eerase(void); int eyorn(const char *); int eyesno(const char *); void ewprintf(const char *fmt, ...); char *ereply(const char *, char *, size_t, ...); char *eread(const char *, char *, size_t, int, ...); int getxtra(struct list *, struct list *, int, int); void free_file_list(struct list *); /* fileio.c */ int ffropen(const char *, struct buffer *); void ffstat(struct buffer *); int ffwopen(const char *, struct buffer *); int ffclose(struct buffer *); int ffputbuf(struct buffer *); int ffgetline(char *, int, int *); int fbackupfile(const char *); char *adjustname(const char *, int); char *startupfile(char *); int copy(char *, char *); struct list *make_file_list(char *); int fisdir(const char *); int fchecktime(struct buffer *); int fupdstat(struct buffer *); /* kbd.c X */ int do_meta(int, int); int bsmap(int, int); void ungetkey(int); int getkey(int); int doin(void); int rescan(int, int); int universal_argument(int, int); int digit_argument(int, int); int negative_argument(int, int); int selfinsert(int, int); int quote(int, int); /* main.c */ int ctrlg(int, int); int quit(int, int); /* ttyio.c */ void panic(char *); /* cinfo.c */ char *getkeyname(char *, size_t, int); /* basic.c */ int gotobol(int, int); int backchar(int, int); int gotoeol(int, int); int forwchar(int, int); int gotobob(int, int); int gotoeob(int, int); int forwline(int, int); int backline(int, int); void setgoal(void); int getgoal(struct line *); int forwpage(int, int); int backpage(int, int); int forw1page(int, int); int back1page(int, int); int pagenext(int, int); void isetmark(void); int setmark(int, int); int clearmark(int, int); int swapmark(int, int); int gotoline(int, int); /* random.c X */ int showcpos(int, int); int getcolpos(void); int twiddle(int, int); int openline(int, int); int newline(int, int); int deblank(int, int); int justone(int, int); int delwhite(int, int); int delleadwhite(int, int); int deltrailwhite(int, int); int lfindent(int, int); int indent(int, int); int forwdel(int, int); int backdel(int, int); int space_to_tabstop(int, int); int backtoindent(int, int); int joinline(int, int); /* extend.c X */ int insert(int, int); int bindtokey(int, int); int localbind(int, int); int redefine_key(int, int); int unbindtokey(int, int); int localunbind(int, int); int extend(int, int); int evalexpr(int, int); int evalbuffer(int, int); int evalfile(int, int); int load(const char *); int excline(char *); /* help.c X */ int desckey(int, int); int wallchart(int, int); int help_help(int, int); int apropos_command(int, int); /* paragraph.c X */ int gotobop(int, int); int gotoeop(int, int); int fillpara(int, int); int killpara(int, int); int fillword(int, int); int setfillcol(int, int); /* word.c X */ int backword(int, int); int forwword(int, int); int upperword(int, int); int lowerword(int, int); int capword(int, int); int delfword(int, int); int delbword(int, int); int inword(void); /* region.c X */ int killregion(int, int); int copyregion(int, int); int lowerregion(int, int); int upperregion(int, int); int prefixregion(int, int); int setprefix(int, int); int region_get_data(struct region *, char *, int); void region_put_data(const char *, int); /* search.c X */ int forwsearch(int, int); int backsearch(int, int); int searchagain(int, int); int forwisearch(int, int); int backisearch(int, int); int queryrepl(int, int); int forwsrch(void); int backsrch(void); int readpattern(char *); /* spawn.c X */ int spawncli(int, int); /* ttykbd.c X */ void ttykeymapinit(void); void ttykeymaptidy(void); /* match.c X */ int showmatch(int, int); /* version.c X */ int showversion(int, int); #ifndef NO_MACRO /* macro.c X */ int definemacro(int, int); int finishmacro(int, int); int executemacro(int, int); #endif /* !NO_MACRO */ /* modes.c X */ int indentmode(int, int); int fillmode(int, int); int blinkparen(int, int); #ifdef NOTAB int notabmode(int, int); #endif /* NOTAB */ int overwrite_mode(int, int); int set_default_mode(int,int); #ifdef REGEX /* re_search.c X */ int re_forwsearch(int, int); int re_backsearch(int, int); int re_searchagain(int, int); int re_queryrepl(int, int); int replstr(int, int); int setcasefold(int, int); int delmatchlines(int, int); int delnonmatchlines(int, int); int cntmatchlines(int, int); int cntnonmatchlines(int, int); #endif /* REGEX */ /* undo.c X */ void free_undo_record(struct undo_rec *); int undo_dump(int, int); int undo_enabled(void); int undo_enable(int, int); int undo_add_boundary(int, int); void undo_add_modified(void); int undo_add_insert(struct line *, int, int); int undo_add_delete(struct line *, int, int, int); int undo_boundary_enable(int, int); int undo_add_change(struct line *, int, int); int undo(int, int); /* autoexec.c X */ int auto_execute(int, int); PF *find_autoexec(const char *); int add_autoexec(const char *, const char *); /* mail.c X */ void mail_init(void); /* cmode.c X */ int cmode(int, int); int cc_brace(int, int); int cc_char(int, int); int cc_tab(int, int); int cc_indent(int, int); int cc_lfindent(int, int); /* grep.c X */ int next_error(int, int); int globalwdtoggle(int, int); int compile(int, int); /* * Externals. */ extern struct buffer *bheadp; extern struct buffer *curbp; extern struct mgwin *curwp; extern struct mgwin *wheadp; extern int thisflag; extern int lastflag; extern int curgoal; extern int startrow; extern int epresf; extern int sgarbf; extern int mode; extern int nrow; extern int ncol; extern int ttrow; extern int ttcol; extern int tttop; extern int ttbot; extern int tthue; extern int defb_nmodes; extern int defb_flag; extern const char cinfo[]; extern char *keystrings[]; extern char pat[NPAT]; #ifndef NO_DPROMPT extern char prompt[]; #endif /* !NO_DPROMPT */ /* * Globals. */ int tceeol; int tcinsl; int tcdell; int rptcount; /* successive invocation count */