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f5bcab4b WJ |
1 | /* vars.c */ |
2 | ||
3 | /* Author: | |
4 | * Steve Kirkendall | |
5 | * 14407 SW Teal Blvd. #C | |
6 | * Beaverton, OR 97005 | |
7 | * kirkenda@cs.pdx.edu | |
8 | */ | |
9 | ||
10 | ||
11 | /* This file contains variables which weren't happy anyplace else */ | |
12 | ||
13 | #include "config.h" | |
14 | #include "vi.h" | |
15 | ||
16 | /*------------------------------------------------------------------------*/ | |
17 | ||
18 | /* used to remember whether the file has been modified */ | |
19 | struct _viflags viflags; | |
20 | ||
21 | /* used to access the tmp file */ | |
22 | long lnum[MAXBLKS]; | |
23 | long nlines; | |
24 | int tmpfd = -1; | |
25 | int tmpnum; | |
26 | #ifndef CRUNCH | |
27 | int wset = FALSE; | |
28 | #endif | |
29 | ||
30 | /* used to keep track of the current file & alternate file */ | |
31 | long origtime; | |
32 | char origname[256]; | |
33 | char prevorig[256]; | |
34 | long prevline = 1; | |
35 | ||
36 | /* used to track various places in the text */ | |
37 | MARK mark[NMARKS]; /* marks 'a through 'z, plus mark '' */ | |
38 | MARK cursor; /* the cursor position within the file */ | |
39 | ||
40 | /* which mode of the editor we're in */ | |
41 | int mode; /* vi mode? ex mode? quitting? */ | |
42 | ||
43 | /* used to manage the args list */ | |
44 | char args[BLKSIZE]; /* list of filenames to edit */ | |
45 | int argno; /* index of current file in args list */ | |
46 | int nargs; /* number of filenames in args[] */ | |
47 | ||
48 | /* dummy var, never explicitly referenced */ | |
49 | int bavar; /* used only in BeforeAfter macros */ | |
50 | ||
51 | /* used to detect changes that invalidate cached text/blocks */ | |
52 | long changes; /* incremented when file is changed */ | |
53 | int significant; /* boolean: was a *REAL* change made? */ | |
54 | ||
55 | /* used to support the pfetch() macro */ | |
56 | int plen; /* length of the line */ | |
57 | long pline; /* line number that len refers to */ | |
58 | long pchgs; /* "changes" level that len refers to */ | |
59 | char *ptext; /* text of previous line, if valid */ | |
60 | ||
61 | /* misc temporary storage - mostly for strings */ | |
62 | BLK tmpblk; /* a block used to accumulate changes */ | |
63 | ||
64 | /* screen oriented stuff */ | |
65 | long topline; /* file line number of top line */ | |
66 | int leftcol; /* column number of left col */ | |
67 | int physcol; /* physical column number that cursor is on */ | |
68 | int physrow; /* physical row number that cursor is on */ | |
69 | ||
70 | /* used to help minimize that "[Hit a key to continue]" message */ | |
71 | int exwrote; /* Boolean: was the last ex command wordy? */ | |
72 | ||
73 | /* This variable affects the behaviour of certain functions -- most importantly | |
74 | * the input function. | |
75 | */ | |
76 | int doingdot; /* boolean: are we doing the "." command? */ | |
77 | ||
78 | /* This variable affects the behaviour of the ":s" command, and it is also | |
79 | * used to detect & prohibit nesting of ":g" commands | |
80 | */ | |
81 | int doingglobal; /* boolean: are doing a ":g" command? */ | |
82 | ||
83 | /* This variable is zeroed before a command executes, and later ORed with the | |
84 | * command's flags after the command has been executed. It is used to force | |
85 | * certain flags to be TRUE for *some* invocations of a particular command. | |
86 | * For example, "/regexp/+offset" forces the LNMD flag, and sometimes a "p" | |
87 | * or "P" command will force FRNT. | |
88 | */ | |
89 | int force_flags; | |
90 | ||
91 | /* These are used for reporting multi-line changes to the user */ | |
92 | long rptlines; /* number of lines affected by a command */ | |
93 | char *rptlabel; /* description of how lines were affected */ | |
94 | ||
95 | /* These store info that pertains to the shift-U command */ | |
96 | long U_line; /* line# of the undoable line, or 0l for none */ | |
97 | char U_text[BLKSIZE]; /* contents of the undoable line */ | |
98 | ||
99 | ||
100 | #ifndef NO_VISIBLE | |
101 | /* These are used to implement the 'v' and 'V' commands */ | |
102 | MARK V_from; /* starting point for v or V */ | |
103 | int V_linemd; /* boolean: doing line-mode version? (V, not v) */ | |
104 | #endif | |
105 | ||
106 | /* Bigger stack req'ed for TOS and TURBOC */ | |
107 | ||
108 | #if TOS | |
109 | long _stksize = 16384; | |
110 | #endif | |
111 | ||
112 | #if TURBOC | |
113 | #include <dos.h> | |
114 | extern unsigned _stklen = 16384U; | |
115 | #endif |