home *** CD-ROM | disk | FTP | other *** search
- /*
- * $Header: extern.h,v 1.2 86/07/14 16:44:30 arnold Exp $
- */
-
- /*
- * $Log: extern.h,v $
- * Revision 1.2 86/07/14 16:44:30 arnold
- * Removed stuff that was Georgia Tech specific.
- *
- * Revision 1.1 86/05/06 13:36:05 osadr
- * Initial revision
- *
- *
- */
-
- /*
- ** extern.h
- **
- ** external data definitions
- ** for the screen editor
- */
-
- /* Concerning line numbers: */
- extern int Line1; /* first line number on command */
- extern int Line2; /* second line number on command */
- extern int Nlines; /* number of line numbers specified */
- extern int Curln; /* current line; value of dot */
- extern int Lastln; /* last line; value of dollar */
-
-
- /* Concerning patterns: */
- extern char Pat[MAXPAT]; /* saved pattern */
-
-
- /* Concerning the text of lines: */
- extern char Txt[MAXLINE]; /* text of current line */
-
-
- /* Concerning file names: */
- extern char Savfil[MAXLINE]; /* remembered file name */
-
-
- /* Concerning line descriptors: */
- extern LINEDESC Buf[MAXBUF];
- #ifdef OLD_SCRATCH
- extern LINEDESC *Lastbf; /* last pointer used in Buf */
- extern LINEDESC *Free; /* head of free list */
- #endif
- extern LINEDESC *Line0; /* head of list of line descriptors */
-
-
- /* Concerning the 'undo' command: */
- extern LINEDESC *Limbo; /* head of limbo list for undo */
- extern int Limcnt; /* number of lines in limbo list */
-
-
- /* Concerning the scratch file: */
- extern filedes Scr; /* scratch file descriptor */
- extern unsigned Scrend; /* end of info on scratch file */
- extern char Scrname[MAXLINE]; /* name of scratch file */
- extern int Lost_lines; /* number of garbage lines in scratch file */
-
-
- /* Concerning miscellaneous variables */
- extern int Buffer_changed; /* YES if buffer changed since last write */
- extern int Errcode; /* cause of most recent error */
- extern int Saverrcode; /* cause of previous error */
- extern int Probation; /* YES if unsaved buffer can be destroyed */
- extern int Argno; /* command line argument pointer */
- extern char Last_char_scanned; /* last char scanned with ctl-s or -l */
- #ifdef HARD_TERMS
- extern int Tspeed; /* terminal speed in characters/second */
- #endif
- extern char Peekc; /* push a SKIP_RIGHT if adding delimiters */
- #ifdef BSD4_2
- extern int Reading; /* are we doing terminal input? */
- #endif
-
-
- /* Concerning options: */
- extern int Tabstops[MAXLINE]; /* array of tab stops */
- extern char Unprintable; /* char to print for unprintable chars */
- extern int Absnos; /* use absolute numbers in margin */
- extern int Nchoise; /* choice of line number for cont. display */
- extern int Overlay_col; /* initial cursor column for 'v' command */
- extern int Warncol; /* where to turn on column warning */
- extern int Firstcol; /* leftmost column to display */
- extern int Indent; /* indent col; 0=same as previous line */
- extern int Notify; /* notify user if he has mail in mail file */
- extern int Globals; /* substitutes in a global don't fail */
- extern int No_hardware; /* never use hardware insert/delete */
-
-
- #ifdef HARD_TERMS
- /* Concerning the terminal type */
- extern int Term_type; /* terminal type */
- #endif
-
-
- /* Concerning the screen format: */
- extern char Screen_image[MAXROWS][MAXCOLS];
- extern char Msgalloc[MAXCOLS]; /* column allocation of status line */
- extern int Nrows; /* number of rows on screen */
- extern int Ncols; /* number of columns on screen */
- extern int Currow; /* vertical cursor coordinate */
- extern int Curcol; /* horizontal cursor coordinate */
- extern int Toprow; /* top row of window field on screen */
- extern int Botrow; /* bottom row of window field on screen */
- extern int Cmdrow; /* row number of command line */
- extern int Topln; /* line number of first line on screen */
- extern int Insert_mode; /* flag to specify character insertion */
- extern int Invert_case; /* flag to specify case mapping on input */
- extern int First_affected; /* number of first line affected by cmd */
- extern int Rel_a; /* char to use for first alpha line number */
- extern int Rel_z; /* char to use for last alpha line number */
- extern int Scline[MAXROWS]; /* lines currently on screen (rel to Sctop) */
- extern int Sctop; /* first line currently on screen */
- extern int Sclen; /* number of lines currently on screen */
- extern char Blanks[MAXCOLS]; /* all blanks for filling in lines on screen */
- extern char Tobuf[MAXTOBUF]; /* buffer for collecting terminal output */
- extern char *Tobp; /* pointer to last used part of Tobuf */
-
-
- /* Concerning interrupts: */
- extern int Int_caught; /* caught a SIGINT from user */
- extern int Hup_caught; /* caught a SIGHUP when phone line dropped */
- #ifdef SIGTSTP
- extern int Catching_stops; /* catching or ignoring SIGTSTP's? */
- #endif
-
- /* Concerning file encryption: */
- extern int Crypting; /* doing file encryption? */
- extern char Key[KEYSIZE]; /* encryption key */
-