File: scan.h

package info (click to toggle)
mawk 1.3.3-17
  • links: PTS, VCS
  • area: main
  • in suites: bullseye, buster, jessie, jessie-kfreebsd, stretch, wheezy
  • size: 1,484 kB
  • ctags: 1,506
  • sloc: ansic: 13,008; yacc: 994; awk: 629; makefile: 113; sh: 107
file content (103 lines) | stat: -rw-r--r-- 2,775 bytes parent folder | download | duplicates (8)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103

/********************************************
scan.h
copyright 1991, Michael D. Brennan

This is a source file for mawk, an implementation of
the AWK programming language.

Mawk is distributed without warranty under the terms of
the GNU General Public License, version 2, 1991.
********************************************/


/* $Log: scan.h,v $
 * Revision 1.3  1995/06/18  19:42:26  mike
 * Remove some redundant declarations and add some prototypes
 *
 * Revision 1.2  1994/09/23  00:20:06  mike
 * minor bug fix: handle \ in eat_nl()
 *
 * Revision 1.1.1.1  1993/07/03  18:58:20  mike
 * move source to cvs
 *
 * Revision 5.1  1991/12/05  07:59:33  brennan
 * 1.1 pre-release
 *
*/


/* scan.h  */

#ifndef  SCAN_H_INCLUDED
#define  SCAN_H_INCLUDED   1

#include <stdio.h>

#ifndef   MAKESCAN
#include  "symtype.h"
#include  "parse.h"
#endif


extern  char scan_code[256] ;

/*  the scan codes to compactify the main switch */

#define  SC_SPACE               1
#define  SC_NL                  2
#define  SC_SEMI_COLON          3
#define  SC_FAKE_SEMI_COLON     4
#define  SC_LBRACE              5
#define  SC_RBRACE              6
#define  SC_QMARK               7
#define  SC_COLON               8
#define  SC_OR                  9
#define  SC_AND                10
#define  SC_PLUS               11
#define  SC_MINUS              12
#define  SC_MUL                13
#define  SC_DIV                14
#define  SC_MOD                15
#define  SC_POW                16
#define  SC_LPAREN             17
#define  SC_RPAREN             18
#define  SC_LBOX               19
#define  SC_RBOX               20
#define  SC_IDCHAR             21
#define  SC_DIGIT              22
#define  SC_DQUOTE             23
#define  SC_ESCAPE             24
#define  SC_COMMENT            25
#define  SC_EQUAL              26
#define  SC_NOT                27
#define  SC_LT                 28
#define  SC_GT                 29
#define  SC_COMMA              30
#define  SC_DOT                31
#define  SC_MATCH              32
#define  SC_DOLLAR             33
#define  SC_UNEXPECTED         34

#ifndef  MAKESCAN

void  PROTO(eat_nl, (void) ) ;

/* in error.c */
void  PROTO( unexpected_char, (void) ) ;

#define  ct_ret(x)  return current_token = (x)

#define  next() (*buffp ? *buffp++ : slow_next())
#define  un_next()  buffp--

#define  test1_ret(c,x,d)  if ( next() == (c) ) ct_ret(x) ;\
                           else { un_next() ; ct_ret(d) ; }

#define  test2_ret(c1,x1,c2,x2,d)   switch( next() )\
                                   { case c1: ct_ret(x1) ;\
                                     case c2: ct_ret(x2) ;\
                                     default: un_next() ;\
                                              ct_ret(d) ; }
#endif  /* ! MAKESCAN  */
#endif