minix/commands/elvis/vars.c
2005-04-21 14:53:53 +00:00

115 lines
3.5 KiB
C
Executable file

/* vars.c */
/* Author:
* Steve Kirkendall
* 14407 SW Teal Blvd. #C
* Beaverton, OR 97005
* kirkenda@cs.pdx.edu
*/
/* This file contains variables which weren't happy anyplace else */
#include "config.h"
#include "vi.h"
/*------------------------------------------------------------------------*/
/* used to remember whether the file has been modified */
struct _viflags viflags;
/* used to access the tmp file */
long lnum[MAXBLKS];
long nlines;
int tmpfd = -1;
int tmpnum;
#ifndef CRUNCH
int wset = FALSE;
#endif
/* used to keep track of the current file & alternate file */
long origtime;
char origname[256];
char prevorig[256];
long prevline = 1;
/* used to track various places in the text */
MARK mark[NMARKS]; /* marks 'a through 'z, plus mark '' */
MARK cursor; /* the cursor position within the file */
/* which mode of the editor we're in */
int mode; /* vi mode? ex mode? quitting? */
/* used to manage the args list */
char args[BLKSIZE]; /* list of filenames to edit */
int argno; /* index of current file in args list */
int nargs; /* number of filenames in args[] */
/* dummy var, never explicitly referenced */
int bavar; /* used only in BeforeAfter macros */
/* used to detect changes that invalidate cached text/blocks */
long changes; /* incremented when file is changed */
int significant; /* boolean: was a *REAL* change made? */
/* used to support the pfetch() macro */
int plen; /* length of the line */
long pline; /* line number that len refers to */
long pchgs; /* "changes" level that len refers to */
char *ptext; /* text of previous line, if valid */
/* misc temporary storage - mostly for strings */
BLK tmpblk; /* a block used to accumulate changes */
/* screen oriented stuff */
long topline; /* file line number of top line */
int leftcol; /* column number of left col */
int physcol; /* physical column number that cursor is on */
int physrow; /* physical row number that cursor is on */
/* used to help minimize that "[Hit a key to continue]" message */
int exwrote; /* Boolean: was the last ex command wordy? */
/* This variable affects the behaviour of certain functions -- most importantly
* the input function.
*/
int doingdot; /* boolean: are we doing the "." command? */
/* This variable affects the behaviour of the ":s" command, and it is also
* used to detect & prohibit nesting of ":g" commands
*/
int doingglobal; /* boolean: are doing a ":g" command? */
/* 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.
*/
int force_flags;
/* These are used for reporting multi-line changes to the user */
long rptlines; /* number of lines affected by a command */
char *rptlabel; /* description of how lines were affected */
/* These store info that pertains to the shift-U command */
long U_line; /* line# of the undoable line, or 0l for none */
char U_text[BLKSIZE]; /* contents of the undoable line */
#ifndef NO_VISIBLE
/* These are used to implement the 'v' and 'V' commands */
MARK V_from; /* starting point for v or V */
int V_linemd; /* boolean: doing line-mode version? (V, not v) */
#endif
/* Bigger stack req'ed for TOS and TURBOC */
#if TOS
long _stksize = 16384;
#endif
#if TURBOC
#include <dos.h>
extern unsigned _stklen = 16384U;
#endif