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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
%{
/******************************************************************************
*
* Module Name: dtcompilerparser.l - Flex input file for table compiler lexer
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2025, 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 MERCHANTABILITY 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 "dtcompilerparser.y.h"
#define _COMPONENT ACPI_COMPILER
ACPI_MODULE_NAME ("dtcompilerscanner")
/* handle locations */
int DtCompilerParsercolumn = 1;
int DtLabelByteOffset = 0;
int DtCompilerParserByteOffset = 0;
UINT32 DtTokenFirstLine = 0;
UINT32 DtTokenFirstColumn = 0;
#define YY_USER_ACTION \
DtTokenFirstLine = DtCompilerParserlineno; \
DtTokenFirstColumn = DtCompilerParsercolumn; \
DtCompilerParsercolumn += DtCompilerParserleng; \
DtCompilerParserByteOffset += DtCompilerParserleng; \
DbgPrint (ASL_PARSE_OUTPUT,\
"user action occurred. DtCompilerParserlloc.first_line: %u\n",\
DtTokenFirstLine);
%}
%option nounput noinput yylineno
/* Indicates a state used for parsing multiline C comments */
%x ML_COMMENT
%x DATA_STATE
WhiteSpace [ \t\v\r]+
NewLines [\n]+
/* Avoid ", \n, and [] as a part of label name. These are not valid characters of a label name */
LabelName [^ ":\n\[\]]([^":\n\[\]]*[^" :\n\[\]])?
/* Avoid ", \n, \\, and [] as a part of data. These are not valid characters of data */
Data [^ \\":\n\[\]]([^":\n\[\]\\]*[^" :\n\[\]\\])?
Text [^ ":\n][^":\n]*
Comment \[[^\n\[\]]*\]
CommentField {LabelName}{WhiteSpace}*:{WhiteSpace}{Comment}?$
%%
<DATA_STATE>{WhiteSpace}"\\\n" {
DbgPrint(ASL_PARSE_OUTPUT,"Continuation matched\n");
return (DT_PARSEOP_LINE_CONTINUATION);
}
":" {
DbgPrint(ASL_PARSE_OUTPUT, ": Matched\n");
BEGIN (DATA_STATE);
return (':');
}
<INITIAL,DATA_STATE>{WhiteSpace} { DbgPrint(ASL_PARSE_OUTPUT,"Whitespace matched\n"); }
<INITIAL,DATA_STATE>{Comment} { DbgPrint(ASL_PARSE_OUTPUT,"Comment matched\n"); }
"/*" { BEGIN (ML_COMMENT); }
<ML_COMMENT>"*/" { BEGIN (INITIAL); }
<ML_COMMENT>"*/\n" { BEGIN (INITIAL); }
<ML_COMMENT>([^*]|\n)+|. /* Ignore */
"//".* /* Ignore */
<DATA_STATE>{Data} {
char *s;
int size = strlen (DtCompilerParsertext);
s=UtLocalCacheCalloc (size + 1);
AcpiUtSafeStrncpy (s, DtCompilerParsertext, size + 1);
DtCompilerParserlval.s = s;
DbgPrint (ASL_PARSE_OUTPUT, "Data: %s\n", s);
return (DT_PARSEOP_DATA);
}
{CommentField} /* ignore */
{LabelName} {
char *s;
int size = strlen (DtCompilerParsertext);
s=UtLocalCacheCalloc (size + 1);
AcpiUtSafeStrncpy (s, DtCompilerParsertext, size + 1);
DtCompilerParserlval.u = (DT_TABLE_UNIT *) UtLocalCacheCalloc (sizeof (DT_TABLE_UNIT));
DtCompilerParserlval.u->Value = s;
DtCompilerParserlval.u->Line = DtCompilerParserlineno;
DtCompilerParserlval.u->Column = DtCompilerParsercolumn;
DtLabelByteOffset = DtCompilerParserByteOffset;
DbgPrint (ASL_PARSE_OUTPUT, "Label: %s\n", s);
return (DT_PARSEOP_LABEL);
}
<DATA_STATE>\"{Text}?\" { // remove outer quotes from the string, they are unnecessary
char *s;
int size = strlen (DtCompilerParsertext);
s=UtLocalCacheCalloc (size - 1);
AcpiUtSafeStrncpy (s, DtCompilerParsertext + 1, size - 1);
DtCompilerParserlval.s = s;
DbgPrint (ASL_PARSE_OUTPUT, "String Data: %s\n", s);
BEGIN (INITIAL);
return (DT_PARSEOP_STRING_DATA);
}
<INITIAL,DATA_STATE>{NewLines} {
DbgPrint(ASL_PARSE_OUTPUT,
"Newline matched (data state). Current line number: %u\n",DtCompilerParserlineno);
BEGIN (INITIAL); DtCompilerParsercolumn = 1;
}
%%
/*
* Local support functions
*/
void
DtCompilerInitLexer (
FILE *inFile)
{
yyin = inFile;
}
void
DtCompilerTerminateLexer (
void)
{
/*
* Flex/Bison increments the lineno for the EOF so decrement by 1 to get
* the correct number of lines.
*/
AslGbl_CurrentLineNumber = DtCompilerParserlineno - 1;
AslGbl_InputByteCount = DtCompilerParserByteOffset;
}
|
