| 263 |
dpurdie |
1 |
/*
|
|
|
2 |
CPP V5 -- global variable definitions.
|
|
|
3 |
|
|
|
4 |
Source: glb.c
|
|
|
5 |
Started: April 2, 1986
|
|
|
6 |
Version: January 20, 1988; May 21, 1988
|
|
|
7 |
|
|
|
8 |
Written by Edward K. Ream.
|
|
|
9 |
This software is in the public domain.
|
|
|
10 |
|
|
|
11 |
See the read.me file for disclaimer and other information.
|
|
|
12 |
*/
|
|
|
13 |
#define no_extern 1
|
|
|
14 |
#include "cpp.h"
|
|
|
15 |
|
|
|
16 |
/*
|
|
|
17 |
========= increase stack size ========
|
|
|
18 |
*/
|
|
|
19 |
#ifdef TURBOC
|
|
|
20 |
extern unsigned _stklen = 0xf000;
|
|
|
21 |
#endif
|
|
|
22 |
|
|
|
23 |
/*
|
|
|
24 |
========= global variables =========
|
|
|
25 |
*/
|
|
|
26 |
|
|
|
27 |
/*
|
|
|
28 |
The variable ch should be allocated a register if possible.
|
|
|
29 |
*/
|
|
|
30 |
char ch = '@'; /* The NEXT character. */
|
|
|
31 |
|
|
|
32 |
/*
|
|
|
33 |
User options.
|
|
|
34 |
*/
|
|
|
35 |
bool nest_flag = FALSE; /* TRUE = allow nested comments. */
|
|
|
36 |
bool com_flag = FALSE; /* TRUE = leave comments in output. */
|
|
|
37 |
bool slc_flag = TRUE; /* TRUE = allow single-line comments. */
|
|
|
38 |
|
|
|
39 |
/*
|
|
|
40 |
----- PREPROCESSOR AND TOKENS -----
|
|
|
41 |
*/
|
|
|
42 |
bool m_flag = FALSE; /* TRUE if expanding a macro. */
|
|
|
43 |
char macro_buf[MAX_RTEXT]; /* Final macro buffer. */
|
|
|
44 |
char * p_rescan; /* Pointer into rescan_buf[]. */
|
|
|
45 |
|
|
|
46 |
long t_errcount = 0; /* Number of errors seen. */
|
|
|
47 |
|
|
|
48 |
/*
|
|
|
49 |
The code assumes that no token or string will ever be longer than
|
|
|
50 |
MAX_SYMBOL. If that ever is not so the program may crash. Thus,
|
|
|
51 |
MAX_SYMBOL should be very large -- say 1000 or more.
|
|
|
52 |
*/
|
|
|
53 |
en_tokens
|
|
|
54 |
token = NULL_TOK; /* The token itself or it's class. */
|
|
|
55 |
char t_symbol [MAX_SYMBOL]; /* The spelling of the token. */
|
|
|
56 |
int t_length; /* The length of the token (in the text)*/
|
|
|
57 |
long t_value; /* Value of integer constants. */
|
|
|
58 |
int t_subtype; /* The subtype of token class. */
|
|
|
59 |
|
|
|
60 |
/*
|
|
|
61 |
The following globals are set ONLY by the system module.
|
|
|
62 |
They are picked up and used by the preprocessor and the
|
|
|
63 |
parser.
|
|
|
64 |
*/
|
|
|
65 |
char * t_file = NULL; /* Name of current input file. */
|
|
|
66 |
int t_line = 0; /* Line number within file. */
|
|
|
67 |
int t_inlevel = -1; /* Current input file level. */
|
|
|
68 |
|
|
|
69 |
/*
|
|
|
70 |
Globals for use internally to the token routines.
|
|
|
71 |
*/
|
|
|
72 |
bool t_ifstack [MAX_IF]; /* Stack for nexted #if's */
|
|
|
73 |
int t_iflevel = 0; /* Nesting depth of #if's */
|
|
|
74 |
|
|
|
75 |
/*
|
|
|
76 |
Defines for the path table.
|
|
|
77 |
This table is used to search for #include files.
|
|
|
78 |
*/
|
|
|
79 |
char * paths [MAX_PATHS]; /* Pointers to path names. */
|
|
|
80 |
int n_paths = 0; /* Number of paths defined. */
|