aboutsummaryrefslogtreecommitdiff
path: root/compiler/dtparser.l
blob: 0dd30e15de3dc60561a47b559b70ee5c4d38e256 (plain) (blame)
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
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
%{
/******************************************************************************
 *
 * Module Name: dtparser.l - Flex input file for table compiler lexer
 *
 *****************************************************************************/

/*
 * Copyright (C) 2000 - 2011, Intel Corp.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 */

#include "aslcompiler.h"
#include "dtparser.y.h"

#define YY_NO_INPUT     /* No file input, we use strings only */

#define _COMPONENT          ACPI_COMPILER
        ACPI_MODULE_NAME    ("dtscanner")
%}

%option noyywrap
%option nounput

Number          [0-9a-fA-F]+
HexNumber       0[xX][0-9a-fA-F]+
DecimalNumber   0[dD][0-9]+
LabelRef        $[a-zA-Z][0-9a-zA-Z]*
WhiteSpace      [ \t\v\r]+
NewLine         [\n]

%%

\(              return (EXPOP_PAREN_OPEN);
\)              return (EXPOP_PAREN_CLOSE);
\~              return (EXPOP_ONES_COMPLIMENT);
\!              return (EXPOP_LOGICAL_NOT);
\*              return (EXPOP_MULTIPLY);
\/              return (EXPOP_DIVIDE);
\%              return (EXPOP_MODULO);
\+              return (EXPOP_ADD);
\-              return (EXPOP_SUBTRACT);
">>"            return (EXPOP_SHIFT_RIGHT);
"<<"            return (EXPOP_SHIFT_LEFT);
\<              return (EXPOP_LESS);
\>              return (EXPOP_GREATER);
"<="            return (EXPOP_LESS_EQUAL);
">="            return (EXPOP_GREATER_EQUAL);
"=="            return (EXPOP_EQUAL);
"!="            return (EXPOP_NOT_EQUAL);
\&              return (EXPOP_AND);
\^              return (EXPOP_XOR);
\|              return (EXPOP_OR);
"&&"            return (EXPOP_LOGICAL_AND);
"||"            return (EXPOP_LOGICAL_OR);
<<EOF>>         return (EXPOP_EOF); /* null end-of-string */

{LabelRef}      return (EXPOP_LABEL);
{Number}        return (EXPOP_NUMBER);
{HexNumber}     return (EXPOP_HEX_NUMBER);
{NewLine}       return (EXPOP_NEW_LINE);
{WhiteSpace}    /* Ignore */

.               return (EXPOP_EOF);

%%

/*
 * Local support functions
 */
YY_BUFFER_STATE         LexBuffer;

/******************************************************************************
 *
 * FUNCTION:    DtInitLexer, DtTerminateLexer
 *
 * PARAMETERS:  String              - Input string to be parsed
 *
 * RETURN:      None
 *
 * DESCRIPTION: Initialization and termination routines for lexer. Lexer needs
 *              a buffer to handle strings instead of a file.
 *
 *****************************************************************************/

int
DtInitLexer (
    char                    *String)
{

    LexBuffer = yy_scan_string (String);
    return (LexBuffer == NULL);
}

void
DtTerminateLexer (
    void)
{

    yy_delete_buffer (LexBuffer);
}