/* vi.h */
/* Author:
* Steve Kirkendall
* 14407 SW Teal Blvd. #C
* Beaverton, OR 97005
* kirkenda@cs.pdx.edu
*/
#define VERSION "ELVIS 1.7, by Steve Kirkendall (30 December 1992)"
#define COPYING "This version of ELVIS is freely redistributable."
#include <errno.h>
#if TOS
# ifndef __GNUC__
# define ENOENT (-AEFILNF)
# endif
#endif
#if TOS || VMS
# include <types.h>
# define O_RDONLY 0
# define O_WRONLY 1
# define O_RDWR 2
# ifdef __GNUC__
# define S_IJDIR S_IFDIR
# endif
#else
# if OSK
# include <modes.h>
# define O_RDONLY S_IREAD
# define O_WRONLY S_IWRITE
# define O_RDWR (S_IREAD | S_IWRITE)
# define ENOENT E_PNNF
# define sprintf Sprintf
# else
# if !AMIGA
# include <sys/types.h>
# endif
# if COH_286
# include <sys/fcntl.h>
# else
# include <fcntl.h>
# endif
# endif
#endif
#ifndef O_BINARY
# define O_BINARY 0
#endif
#include "curses.h"
#include <signal.h>
#ifdef __STDC__
# include <stdio.h> /* for [v]sprintf prototype */
# include <string.h> /* for str* prototypes */
# include <stdlib.h> /* for atoi, system, malloc, free */
# include <stdarg.h> /* for vararg definitions */
# if ANY_UNIX
# include <unistd.h> /* for read, write, ... prototypes */
# include <sys/wait.h> /* for wait prototype */
# endif
#endif
/*------------------------------------------------------------------------*/
/* Miscellaneous constants. */
#define INFINITY 2000000001L /* a very large integer */
#define LONGKEY 10 /* longest possible raw :map key */
#ifndef MAXRCLEN
# define MAXRCLEN 1000 /* longest possible :@ command */
#endif
/*------------------------------------------------------------------------*/
/* These describe how temporary files are divided into blocks */
#define MAXBLKS (BLKSIZE / sizeof(unsigned short))
typedef union
{
char c[BLKSIZE]; /* for text blocks */
unsigned short n[MAXBLKS]; /* for the header block */
}
BLK;
/*------------------------------------------------------------------------*/
/* These are used manipulate BLK buffers. */
extern BLK hdr; /* buffer for the header block */
extern BLK *blkget P_((int)); /* given index into hdr.c[], reads block */
extern BLK *blkadd P_((int)); /* inserts a new block into hdr.c[] */
/*------------------------------------------------------------------------*/
/* These are used to keep track of various flags */
extern struct _viflags
{
short file; /* file flags */
}
viflags;
/* file flags */
#define NEWFILE 0x0001 /* the file was just created */
#define READONLY 0x0002 /* the file is read-only */
#define HADNUL 0x0004 /* the file contained NUL characters */
#define MODIFIED 0x0008 /* the file has been modified, but not saved */
#define NOFILE 0x0010 /* no name is known for the current text */
#define ADDEDNL 0x0020 /* newlines were added to the file */
#define HADBS 0x0040 /* backspace chars were lost from the file */
#define UNDOABLE 0x0080 /* file has been modified */
#define NOTEDITED 0x0100 /* the :file command has been used */
/* macros used to set/clear/test flags */
#define setflag(x,y) viflags.x |= y
#define clrflag(x,y) viflags.x &= ~y
#define tstflag(x,y) (viflags.x & y)
#define initflags() viflags.file = 0;
/* The options */
extern char o_autoindent[1];
extern char o_autoprint[1];
extern char o_autotab[1];
extern char o_autowrite[1];
extern char o_columns[3];
extern char o_directory[30];
extern char o_edcompatible[1];
extern char o_equalprg[80];
extern char o_errorbells[1];
extern char o_exrefresh[1];
extern char o_ignorecase[1];
extern char o_keytime[3];
extern char o_keywordprg[80];
extern char o_lines[3];
extern char o_list[1];
extern char o_number[1];
extern char o_readonly[1];
extern char o_remap[1];
extern char o_report[3];
extern char o_scroll[3];
extern char o_shell[60];
extern char o_shiftwidth[3];
extern char o_sidescroll[3];
extern char o_sync[1];
extern char o_tabstop[3];
extern char o_term[30];
extern char o_flash[1];
extern char o_warn[1];
extern char o_wrapscan[1];
#ifndef CRUNCH
extern char o_beautify[1];
extern char o_exrc[1];
extern char o_mesg[1];
extern char o_more[1];
extern char o_nearscroll[3];
extern char o_novice[1];
extern char o_prompt[1];
extern char o_taglength[3];
extern char o_tags[256];
extern char o_terse[1];
extern char o_window[3];
extern char o_wrapmargin[3];
extern char o_writeany[1];
#endif
#ifndef NO_ERRLIST
extern char o_cc[30];
extern char o_make[30];
#endif
#ifndef NO_CHARATTR
extern char o_charattr[1];
#endif
#ifndef NO_DIGRAPH
extern char o_digraph[1];
extern char o_flipcase[80];
#endif
#ifndef NO_SENTENCE
extern char o_hideformat[1];
#endif
#ifndef NO_EXTENSIONS
extern char o_inputmode[1];
extern char o_ruler[1];
#endif
#ifndef NO_MAGIC
extern char o_magic[1];
#endif
#ifndef NO_MODELINES
extern char o_modelines[1];
#endif
#ifndef NO_SENTENCE
extern char o_paragraphs[30];
extern char o_sections[30];
#endif
#if MSDOS
extern char o_pcbios[1];
#endif
#ifndef NO_SHOWMATCH
extern char o_showmatch[1];
#endif
#ifndef NO_SHOWMODE
extern char o_smd[1];
#endif
#ifndef NO_TAGSTACK
extern char o_tagstack[1];
#endif
/*------------------------------------------------------------------------*/
/* These help support the single-line multi-change "undo" -- shift-U */
extern char U_text[BLKSIZE];
extern long U_line;
/*------------------------------------------------------------------------*/
/* These are used to refer to places in the text */
typedef long MARK;
#define markline(x) (long)((x) / BLKSIZE)
#define markidx(x) (int)((x) & (BLKSIZE - 1))
#define MARK_UNSET ((MARK)0)
#define MARK_FIRST ((MARK)BLKSIZE)
#define MARK_LAST ((MARK)(nlines * BLKSIZE))
#define MARK_EOF ((MARK)((nlines + 1) * BLKSIZE))
#define MARK_AT_LINE(x) ((MARK)(x) * BLKSIZE)
#define NMARKS 29
extern MARK mark[NMARKS]; /* marks a-z, plus mark ' and two temps */
extern MARK cursor; /* mark where line is */
/*------------------------------------------------------------------------*/
/* These are used to keep track of the current & previous files. */
extern long origtime; /* modification date&time of the current file */
extern char origname[256]; /* name of the current file */
extern char prevorig[256]; /* name of the preceding file */
extern long prevline; /* line number from preceding file */
/*------------------------------------------------------------------------*/
/* misc housekeeping variables & functions */
extern int tmpfd; /* fd used to access the tmp file */
extern int tmpnum; /* counter used to generate unique filenames */
extern long lnum[MAXBLKS]; /* last line# of each block */
extern long nlines; /* number of lines in the file */
extern char args[BLKSIZE]; /* file names given on the command line */
extern int argno; /* the current element of args[] */
extern int nargs; /* number of filenames in args */
extern long changes; /* counts changes, to prohibit short-cuts */
extern int significant; /* boolean: was a *REAL* change made? */
extern int exitcode; /* 0=not updated, 1=overwritten, else error */
extern BLK tmpblk; /* a block used to accumulate changes */
extern long topline; /* file line number of top line */
extern int leftcol; /* column number of left col */
#define botline (topline + LINES - 2)
#define rightcol (leftcol + COLS - (*o_number ? 9 : 1))
extern int physcol; /* physical column number that cursor is on */
extern int physrow; /* physical row number that cursor is on */
extern int exwrote; /* used to detect verbose ex commands */
extern int doingdot; /* boolean: are we doing the "." command? */
extern int doingglobal; /* boolean: are doing a ":g" command? */
extern long rptlines; /* number of lines affected by a command */
extern char *rptlabel; /* description of how lines were affected */
extern char *fetchline P_((long)); /* read a given line from tmp file */
extern char *parseptrn P_((REG char *)); /* isolate a regexp in a line */
extern MARK paste P_((MARK, int, int)); /* paste from cut buffer to a given point */
extern char *wildcard P_((char *)); /* expand wildcards in filenames */
extern MARK input P_((MARK, MARK, int, int)); /* inserts characters from keyboard */
extern char *linespec P_((REG char *, MARK *)); /* finds the end of a /regexp/ string */
#define ctrl(ch) ((ch)&037)
#ifndef NO_RECYCLE
extern long allocate P_((void)); /* allocate a free block of the tmp file */
#endif
extern SIGTYPE trapint P_((int)); /* trap handler for SIGINT */
extern SIGTYPE deathtrap P_((int)); /* trap handler for deadly signals */
extern void blkdirty P_((BLK *)); /* marks a block as being "dirty" */
extern void blksync P_((void)); /* forces all "dirty" blocks to disk */
extern void blkinit P_((void)); /* resets the block cache to "empty" state */
extern void beep P_((void)); /* rings the terminal's bell */
extern void exrefresh P_((void)); /* writes text to the screen */
#ifdef __STDC__
extern void msg (char *, ...); /* writes a printf-style message to the screen */
#else
extern void msg (); /* writes a printf-style message to the screen */
#endif
extern void endmsgs P_((void)); /* if "manymsgs" is set, then scroll up 1 line */
extern void garbage P_((void)); /* reclaims any garbage blocks */
extern void redraw P_((MARK, int)); /* updates the screen after a change */
extern void resume_curses P_((int)); /* puts the terminal in "cbreak" mode */
extern void beforedo P_((int)); /* saves current revision before a new change */
extern void afterdo P_((void)); /* marks end of a beforedo() change */
extern void abortdo P_((void)); /* like "afterdo()" followed by "undo()" */
extern int undo P_((void)); /* restores file to previous undo() */
extern void dumpkey P_((int, int)); /* lists key mappings to the screen */
extern void mapkey P_((char *, char *, int, char *)); /* defines a new key mapping */
extern void redrawrange P_((long, long, long)); /* records clues from modify.c */
extern void cut P_((MARK, MARK)); /* saves text in a cut buffer */
extern void delete P_((MARK, MARK)); /* deletes text */
extern void add P_((MARK, char *)); /* adds text */
extern void change P_((MARK, MARK, char *));/* deletes text, and then adds other text */
extern void cutswitch P_((void)); /* updates cut buffers when we switch files */
extern void do_digraph P_((int, char [])); /* defines or lists digraphs */
extern void exstring P_((char *, int, int));/* execute a string as EX commands */
extern void dumpopts P_((int)); /* display current option settings on the screen */
extern void setopts P_((char *)); /* assign new values to options */
extern void saveopts P_((int)); /* save current option values to a given fd */
extern void savedigs P_((int)); /* save current non-standard digraphs to fd */
extern void savecolor P_((int)); /* save current color settings (if any) to fd */
extern void cutname P_((int)); /* select cut buffer for next cut/paste */
extern void initopts P_((void)); /* initialize options */
extern void cutend P_((void)); /* free all cut buffers & delete temp files */
extern int storename P_((char *)); /* stamp temp file with pathname of text file */
extern int tmpstart P_((char *)); /* load a text file into edit buffer */
extern int tmpsave P_((char *, int)); /* write edit buffer out to text file */
extern int tmpend P_((int)); /* call tmpsave(), and then tmpabort */
extern int tmpabort P_((int)); /* abandon the current edit buffer */
extern void savemaps P_((int, int)); /* write current :map or :ab commands to fd */
extern int ansicolor P_((int, int)); /* emit ANSI color command to terminal */
extern int filter P_((MARK, MARK, char *, int)); /* I/O though another program */
extern int getkey P_((int)); /* return a keystroke, interpretting maps */
extern int vgets P_((int, char *, int)); /* read a single line from keyboard */
extern int doexrc P_((char *)); /* execute a string as a sequence of EX commands */
extern int cb2str P_((int, char *, unsigned));/* return a string containing cut buffer's contents */
extern int ansiquit P_((void)); /* neutralize previous ansicolor() call */
extern int ttyread P_((char *, int, int)); /* read from keyboard with optional timeout */
extern int tgetent P_((char *, char *)); /* start termcap */
extern int tgetnum P_((char *)); /* get a termcap number */
extern int tgetflag P_((char *)); /* get a termcap boolean */
extern int getsize P_((int)); /* determine how big the screen is */
extern int endcolor P_((void)); /* used during color output */
extern int getabkey P_((int, char *, int));/* like getkey(), but also does abbreviations */
extern int idx2col P_((MARK, REG char *, int)); /* returns column# of a given MARK */
extern int cutneeds P_((BLK *)); /* returns bitmap of blocks needed to hold cutbuffer text */
extern void execmap P_((int, char *, int)); /* replaces "raw" keys with "mapped" keys */
#ifndef CRUNCH
extern int wset; /* boolean: has the "window" size been set? */
#endif
/*------------------------------------------------------------------------*/
/* macros that are used as control structures */
#define BeforeAfter(before, after) for((before),bavar=1;bavar;(after),bavar=0)
#define ChangeText BeforeAfter(beforedo(FALSE),afterdo())
extern int bavar; /* used only in BeforeAfter macros */
/*------------------------------------------------------------------------*/
/* These are the movement commands. Each accepts a mark for the starting */
/* location & number and returns a mark for the destination. */
extern MARK m_updnto P_((MARK, long, int)); /* k j G */
extern MARK m_right P_((MARK, long, int, int)); /* h */
extern MARK m_left P_((MARK, long)); /* l */
extern MARK m_tocol P_((MARK, long, int)); /* | */
extern MARK m_front P_((MARK, long)); /* ^ */
extern MARK m_rear P_((MARK, long)); /* $ */
extern MARK m_fword P_((MARK, long, int, int)); /* w */
extern MARK m_bword P_((MARK, long, int)); /* b */
extern MARK m_eword P_((MARK, long, int)); /* e */
extern MARK m_paragraph P_((MARK, long, int)); /* { } [[ ]] */
extern MARK m_match P_((MARK, long)); /* % */
#ifndef NO_SENTENCE
extern MARK m_sentence P_((MARK, long, int)); /* ( ) */
#endif
extern MARK m_tomark P_((MARK, long, int)); /* 'm */
#ifndef NO_EXTENSIONS
extern MARK m_wsrch P_((char *, MARK, int)); /* ^A */
#endif
extern MARK m_nsrch P_((MARK, long, int)); /* n */
extern MARK m_fsrch P_((MARK, char *)); /* /regexp */
extern MARK m_bsrch P_((MARK, char *)); /* ?regexp */
#ifndef NO_CHARSEARCH
extern MARK m__ch P_((MARK, long, int)); /* ; , */
extern MARK m_fch P_((MARK, long, int)); /* f */
extern MARK m_tch P_((MARK, long, int)); /* t */
extern MARK m_Fch P_((MARK, long, int)); /* F */
extern MARK m_Tch P_((MARK, long, int)); /* T */
#endif
extern MARK m_row P_((MARK, long, int)); /* H L M */
extern MARK m_z P_((MARK, long, int)); /* z */
extern MARK m_scroll P_((MARK, long, int)); /* ^B ^F ^E ^Y ^U ^D */
/* Some stuff that is used by movement functions... */
extern MARK adjmove P_((MARK, REG MARK, int)); /* a helper fn, used by move fns */
/* This macro is used to set the default value of cnt */
#define DEFAULT(val) if (cnt < 1) cnt = (val)
/* These are used to minimize calls to fetchline() */
extern int plen; /* length of the line */
extern long pline; /* line number that len refers to */
extern long pchgs; /* "changes" level that len refers to */
extern char *ptext; /* text of previous line, if valid */
extern void pfetch P_((long));
extern char digraph P_((int, int));
/* This is used to build a MARK that corresponds to a specific point in the
* line that was most recently pfetch'ed.
*/
#define buildmark(text) (MARK)(BLKSIZE * pline + (int)((text) - ptext))
/*------------------------------------------------------------------------*/
/* These are used to handle EX commands. */
#define CMD_NULL 0 /* NOT A VALID COMMAND */
#define CMD_ABBR 1 /* "define an abbreviation" */
#define CMD_ARGS 2 /* "show me the args" */
#define CMD_APPEND 3 /* "insert lines after this line" */
#define CMD_AT 4 /* "execute a cut buffer's contents via EX" */
#define CMD_BANG 5 /* "run a single shell command" */
#define CMD_CC 6 /* "run `cc` and then do CMD_ERRLIST" */
#define CMD_CD 7 /* "change directories" */
#define CMD_CHANGE 8 /* "change some lines" */
#define CMD_COLOR 9 /* "change the default colors" */
#define CMD_COPY 10 /* "copy the selected text to a given place" */
#define CMD_DELETE 11 /* "delete the selected text" */
#define CMD_DIGRAPH 12 /* "add a digraph, or display them all" */
#define CMD_EDIT 13 /* "switch to a different file" */
#define CMD_EQUAL 14 /* "display a line number" */
#define CMD_ERRLIST 15 /* "locate the next error in a list" */
#define CMD_FILE 16 /* "show the file's status" */
#define CMD_GLOBAL 17 /* "globally search & do a command" */
#define CMD_INSERT 18 /* "insert lines before the current line" */
#define CMD_JOIN 19 /* "join the selected line & the one after" */
#define CMD_LIST 20 /* "print lines, making control chars visible" */
#define CMD_MAKE 21 /* "run `make` and then do CMD_ERRLIST" */
#define CMD_MAP 22 /* "adjust the keyboard map" */
#define CMD_MARK 23 /* "mark this line" */
#define CMD_MKEXRC 24 /* "make a .exrc file" */
#define CMD_MOVE 25 /* "move the selected text to a given place" */
#define CMD_NEXT 26 /* "switch to next file in args" */
#define CMD_NUMBER 27 /* "print lines from the file w/ line numbers" */
#define CMD_POP 28 /* "pop a position off the tagstack" */
#define CMD_PRESERVE 29 /* "act as though vi crashed" */
#define CMD_PREVIOUS 30 /* "switch to the previous file in args" */
#define CMD_PRINT 31 /* "print the selected text" */
#define CMD_PUT 32 /* "insert any cut lines before this line" */
#define CMD_QUIT 33 /* "quit without writing the file" */
#define CMD_READ 34 /* "append the given file after this line */
#define CMD_RECOVER 35 /* "recover file after vi crashes" - USE -r FLAG */
#define CMD_REWIND 36 /* "rewind to first file" */
#define CMD_SET 37 /* "set a variable's value" */
#define CMD_SHELL 38 /* "run some lines through a command" */
#define CMD_SHIFTL 39 /* "shift lines left" */
#define CMD_SHIFTR 40 /* "shift lines right" */
#define CMD_SOURCE 41 /* "interpret a file's contents as ex commands" */
#define CMD_STOP 42 /* same as CMD_SUSPEND */
#define CMD_SUBAGAIN 43 /* "repeat the previous substitution" */
#define CMD_SUBSTITUTE 44 /* "substitute text in this line" */
#define CMD_SUSPEND 45 /* "suspend the vi session" */
#define CMD_TR 46 /* "transliterate chars in the selected lines" */
#define CMD_TAG 47 /* "go to a particular tag" */
#define CMD_UNABBR 48 /* "remove an abbreviation definition" */
#define CMD_UNDO 49 /* "undo the previous command" */
#define CMD_UNMAP 50 /* "remove a key sequence map */
#define CMD_VERSION 51 /* "describe which version this is" */
#define CMD_VGLOBAL 52 /* "apply a cmd to lines NOT containing an RE" */
#define CMD_VISUAL 53 /* "go into visual mode" */
#define CMD_WQUIT 54 /* "write this file out (any case) & quit" */
#define CMD_WRITE 55 /* "write the selected(?) text to a given file" */
#define CMD_XIT 56 /* "write this file out (if modified) & quit" */
#define CMD_YANK 57 /* "copy the selected text into the cut buffer" */
#define CMD_DEBUG 58 /* access to internal data structures */
#define CMD_VALIDATE 59 /* check for internal consistency */
typedef int CMD;
extern void ex P_((void));
extern void vi P_((void));
extern void doexcmd P_((char *));
extern void cmd_append P_((MARK, MARK, CMD, int, char *));
extern void cmd_args P_((MARK, MARK, CMD, int, char *));
#ifndef NO_AT
extern void cmd_at P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_cd P_((MARK, MARK, CMD, int, char *));
#ifndef NO_COLOR
extern void cmd_color P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_delete P_((MARK, MARK, CMD, int, char *));
#ifndef NO_DIGRAPH
extern void cmd_digraph P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_edit P_((MARK, MARK, CMD, int, char *));
#ifndef NO_ERRLIST
extern void cmd_errlist P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_file P_((MARK, MARK, CMD, int, char *));
extern void cmd_global P_((MARK, MARK, CMD, int, char *));
extern void cmd_join P_((MARK, MARK, CMD, int, char *));
extern void cmd_mark P_((MARK, MARK, CMD, int, char *));
#ifndef NO_ERRLIST
extern void cmd_make P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_map P_((MARK, MARK, CMD, int, char *));
#ifndef NO_MKEXRC
extern void cmd_mkexrc P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_next P_((MARK, MARK, CMD, int, char *));
#ifndef NO_TAGSTACK
extern void cmd_pop P_((MARK, MARK, CMD, int, char *));
#endif
extern void cmd_print P_((MARK, MARK, CMD, int, char *));
extern void cmd_put P_((MARK, MARK, CMD, int, char *));
extern void cmd_read P_((MARK, MARK, CMD, int, char *));
extern void cmd_set P_((MARK, MARK, CMD, int, char *));
extern void cmd_shell P_((MARK, MARK, CMD, int, char *));
extern void cmd_shift P_((MARK, MARK, CMD, int, char *));
extern void cmd_source P_((MARK, MARK, CMD, int, char *));
extern void cmd_substitute P_((MARK, MARK, CMD, int, char *));
extern void cmd_tag P_((MARK, MARK, CMD, int, char *));
extern void cmd_undo P_((MARK, MARK, CMD, int, char *));
extern void cmd_version P_((MARK, MARK, CMD, int, char *));
extern void cmd_write P_((MARK, MARK, CMD, int, char *));
extern void cmd_xit P_((MARK, MARK, CMD, int, char *));
extern void cmd_move P_((MARK, MARK, CMD, int, char *));
#ifdef DEBUG
extern void cmd_debug P_((MARK, MARK, CMD, int, char *));
extern void cmd_validate P_((MARK, MARK, CMD, int, char *));
#endif
#ifdef SIGTSTP
extern void cmd_suspend P_((MARK, MARK, CMD, int, char *));
#endif
/*----------------------------------------------------------------------*/
/* These are used to handle VI commands */
extern MARK v_1ex P_((MARK, char *)); /* : */
extern MARK v_mark P_((MARK, long, int)); /* m */
extern MARK v_quit P_((void)); /* Q */
extern MARK v_redraw P_((void)); /* ^L ^R */
extern MARK v_ulcase P_((MARK, long)); /* ~ */
extern MARK v_undo P_((MARK)); /* u */
extern MARK v_xchar P_((MARK, long, int)); /* x X */
extern MARK v_replace P_((MARK, long, int));/* r */
extern MARK v_overtype P_((MARK)); /* R */
extern MARK v_selcut P_((MARK, long, int)); /* " */
extern MARK v_paste P_((MARK, long, int)); /* p P */
extern MARK v_yank P_((MARK, MARK)); /* y Y */
extern MARK v_delete P_((MARK, MARK)); /* d D */
extern MARK v_join P_((MARK, long)); /* J */
extern MARK v_insert P_((MARK, long, int)); /* a A i I o O */
extern MARK v_change P_((MARK, MARK)); /* c C */
extern MARK v_subst P_((MARK, long)); /* s */
extern MARK v_lshift P_((MARK, MARK)); /* < */
extern MARK v_rshift P_((MARK, MARK)); /* > */
extern MARK v_reformat P_((MARK, MARK)); /* = */
extern MARK v_filter P_((MARK, MARK)); /* ! */
extern MARK v_status P_((void)); /* ^G */
extern MARK v_switch P_((void)); /* ^^ */
extern MARK v_tag P_((char *, MARK, long)); /* ^] */
extern MARK v_xit P_((MARK, long, int)); /* ZZ */
extern MARK v_undoline P_((MARK)); /* U */
extern MARK v_again P_((MARK, MARK)); /* & */
#ifndef NO_EXTENSIONS
extern MARK v_keyword P_((char *, MARK, long)); /* K */
extern MARK v_increment P_((char *, MARK, long)); /* * */
#endif
#ifndef NO_ERRLIST
extern MARK v_errlist P_((MARK)); /* * */
#endif
#ifndef NO_AT
extern MARK v_at P_((MARK, long, int)); /* @ */
#endif
#ifdef SIGTSTP
extern MARK v_suspend P_((void)); /* ^Z */
#endif
#ifndef NO_POPUP
extern MARK v_popup P_((MARK, MARK)); /* \ */
#endif
#ifndef NO_TAGSTACK
extern MARK v_pop P_((MARK, long, int)); /* ^T */
#endif
/*----------------------------------------------------------------------*/
/* These flags describe the quirks of the individual visual commands */
#define NO_FLAGS 0x00
#define MVMT 0x01 /* this is a movement command */
#define PTMV 0x02 /* this can be *part* of a movement command */
#define FRNT 0x04 /* after move, go to front of line */
#define INCL 0x08 /* include last char when used with c/d/y */
#define LNMD 0x10 /* use line mode of c/d/y */
#define NCOL 0x20 /* this command can't change the column# */
#define NREL 0x40 /* this is "non-relative" -- set the '' mark */
#define SDOT 0x80 /* set the "dot" variables, for the "." cmd */
#define FINL 0x100 /* final testing, more strict! */
#define NWRP 0x200 /* no line-wrap (used for 'w' and 'W') */
#ifndef NO_VISIBLE
# define VIZ 0x400 /* commands which can be used with 'v' */
#else
# define VIZ 0
#endif
/* This variable is zeroed before a command executes, and later ORed with the
* command's flags after the command has been executed. It is used to force
* certain flags to be TRUE for *some* invocations of a particular command.
* For example, "/regexp/+offset" forces the LNMD flag, and sometimes a "p"
* or "P" command will force FRNT.
*/
extern int force_flags;
/*----------------------------------------------------------------------*/
/* These describe what mode we're in */
#define MODE_EX 1 /* executing ex commands */
#define MODE_VI 2 /* executing vi commands */
#define MODE_COLON 3 /* executing an ex command from vi mode */
#define MODE_QUIT 4
extern int mode;
#define WHEN_VICMD 1 /* getkey: we're reading a VI command */
#define WHEN_VIINP 2 /* getkey: we're in VI's INPUT mode */
#define WHEN_VIREP 4 /* getkey: we're in VI's REPLACE mode */
#define WHEN_EX 8 /* getkey: we're in EX mode */
#define WHEN_MSG 16 /* getkey: we're at a "more" prompt */
#define WHEN_POPUP 32 /* getkey: we're in the pop-up menu */
#define WHEN_REP1 64 /* getkey: we're getting a single char for 'r' */
#define WHEN_CUT 128 /* getkey: we're getting a cut buffer name */
#define WHEN_MARK 256 /* getkey: we're getting a mark name */
#define WHEN_CHAR 512 /* getkey: we're getting a destination for f/F/t/T */
#define WHEN_INMV 4096 /* in input mode, interpret the key in VICMD mode */
#define WHEN_FREE 8192 /* free the keymap after doing it once */
#define WHENMASK (WHEN_VICMD|WHEN_VIINP|WHEN_VIREP|WHEN_REP1|WHEN_CUT|WHEN_MARK|WHEN_CHAR)
#ifndef NO_VISIBLE
extern MARK V_from;
extern int V_linemd;
extern MARK v_start P_((MARK m, long cnt, int cmd));
#endif
#ifdef DEBUG
# define malloc(size) dbmalloc(size, __FILE__, __LINE__)
# define free(ptr) dbfree(ptr, __FILE__, __LINE__)
# define checkmem() dbcheckmem(__FILE__, __LINE__)
extern char *dbmalloc P_((int, char *, int));
#else
# define checkmem()
#endif