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/* $OpenBSD: def.h,v 1.166 2020/02/09 10:13:13 florian 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 <sys/types.h>
#include <unistd.h>
#include "chrdef.h"
#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__DragonFly__)
# define LOGIN_NAME_MAX _POSIX_LOGIN_NAME_MAX
#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 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 UERROR 3 /* User Error. */
#define REVERT 4 /* Revert the buffer */
#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 or 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 */
/*
* 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 */
#define MAX_TOKEN 64
#define BUFSIZE 128 /* Size of line contents in extend.c */
/*
* Previously from sysdef.h
*/
typedef int RSIZE; /* Type for file/region sizes */
typedef short KCHAR; /* Type for internal keystrokes */
/*
* 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" */
int w_toprow; /* Origin 0 top row of window */
int w_ntrows; /* # of rows of text in window */
int 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);
/*
* Previously from sysdef.h
* Only used in struct buffer.
*/
struct fileinfo {
uid_t fi_uid;
gid_t fi_gid;
mode_t fi_mode;
struct timespec fi_mtime; /* Last modified time */
};
/*
* 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 */
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 */
#define BFDIREDDEL 0x80 /* Dired has a deleted 'D' file */
/*
* 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;
};
/*
* Previously from ttydef.h
*/
#define STANDOUT_GLITCH /* possible standout glitch */
#define putpad(str, num) tputs(str, num, ttputc)
#define KFIRST K00
#define KLAST K00
/*
* Prototypes.
*/
#ifdef __DragonFly__
void *reallocarray(void*, size_t, size_t);
#endif
/* 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);
extern 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);
int makedir(int, int);
int do_makedir(char *);
int ask_makedir(void);
/* dired.c */
struct buffer *dired_(char *);
int do_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);
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(FILE **, struct buffer *, char *);
void upmodes(struct buffer *);
size_t xbasename(char *, const char *, size_t);
int do_filevisitalt(char *);
/* line.c X */
struct line *lalloc(int);
int lrealloc(struct line *, int);
void lfree(struct line *);
void lchange(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 *);
int setcasereplace(int, int);
/* 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 *);
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);
int togglereadonlyall(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 *);
int revertbuffer(int, int);
int dorevert(void);
int diffbuffer(int, int);
struct buffer *findbuffer(char *);
/* display.c */
int vtresize(int, int, int);
void vtinit(void);
void vttidy(void);
void update(int);
int linenotoggle(int, int);
int colnotoggle(int, int);
/* echo.c X */
void eerase(void);
int eyorn(const char *);
int eynorr(const char *);
int eyesno(const char *);
void ewprintf(const char *fmt, ...);
char *eread(const char *, char *, size_t, int, ...)
__attribute__((__format__ (printf, 1, 5)));
int getxtra(struct list *, struct list *, int, int);
void free_file_list(struct list *);
/* fileio.c */
int ffropen(FILE **, const char *, struct buffer *);
void ffstat(FILE *, struct buffer *);
int ffwopen(FILE **, const char *, struct buffer *);
int ffclose(FILE *, struct buffer *);
int ffputbuf(FILE *, struct buffer *, int);
int ffgetline(FILE *, 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 *);
int backuptohomedir(int, int);
int toggleleavetmp(int, int);
char *expandtilde(const char *);
/* 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 ask_selfinsert(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);
int setlineno(int);
/* util.c X */
int showcpos(int, int);
int getcolpos(struct mgwin *);
int twiddle(int, int);
int openline(int, int);
int enewline(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);
/* tags.c X */
int findtag(int, int);
int poptag(int, int);
int tagsvisit(int, int);
int curtoken(int, int, char *);
/* cscope.c */
int cssymbol(int, int);
int csdefinition(int, int);
int csfuncalled(int, int);
int cscallerfuncs(int, int);
int csfindtext(int, int);
int csegrep(int, int);
int csfindfile(int, int);
int csfindinc(int, int);
int csnextfile(int, int);
int csnextmatch(int, int);
int csprevfile(int, int);
int csprevmatch(int, int);
int cscreatelist(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 *);
char *skipwhite(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);
int markpara(int, int);
int transposepara(int, int);
int sentencespace(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);
int transposeword(int, int);
/* 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);
int markbuffer(int, int);
int piperegion(int, int);
int shellcommand(int, int);
int pipeio(const char * const, char * const[], char * const, int,
struct buffer *);
/* 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);
/* macro.c X */
int definemacro(int, int);
int finishmacro(int, int);
int executemacro(int, int);
/* modes.c X */
int indentmode(int, int);
int fillmode(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 *);
/* 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);
/* bell.c */
void bellinit(void);
int toggleaudiblebell(int, int);
int togglevisiblebell(int, int);
int dobeep_msgs(const char *, const char *);
int dobeep_msg(const char *);
void dobeep(void);
/* interpreter.c */
int foundparen(char *);
int clearvars(void);
/*
* 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 int doaudiblebell;
extern int dovisiblebell;
extern int dblspace;
extern int allbro;
extern char cinfo[];
extern char *keystrings[];
extern char pat[NPAT];
extern char prompt[];
extern int tceeol;
extern int tcinsl;
extern int tcdell;
extern int rptcount; /* successive invocation count */
/* https://github.com/hboetes/mg/issues/7#issuecomment-475869095 */
#if defined(__APPLE__) || defined(__NetBSD__)
#define st_atim st_atimespec
#define st_ctim st_ctimespec
#define st_mtim st_mtimespec
#endif
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