1%{
2/******************************************************************************
3 *
4 * Module Name: dtcompilerparser.y - Bison input file for table compiler parser
5 *
6 *****************************************************************************/
7
8/*
9 * Copyright (C) 2000 - 2023, Intel Corp.
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions, and the following disclaimer,
17 *    without modification.
18 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19 *    substantially similar to the "NO WARRANTY" disclaimer below
20 *    ("Disclaimer") and any redistribution must be conditioned upon
21 *    including a substantially similar Disclaimer requirement for further
22 *    binary redistribution.
23 * 3. Neither the names of the above-listed copyright holders nor the names
24 *    of any contributors may be used to endorse or promote products derived
25 *    from this software without specific prior written permission.
26 *
27 * Alternatively, this software may be distributed under the terms of the
28 * GNU General Public License ("GPL") version 2 as published by the Free
29 * Software Foundation.
30 *
31 * NO WARRANTY
32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
35 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42 * POSSIBILITY OF SUCH DAMAGES.
43 */
44
45#include "aslcompiler.h"
46
47
48#define _COMPONENT          DT_COMPILER
49        ACPI_MODULE_NAME    ("dtcompilerparser")
50
51void *                      AslLocalAllocate (unsigned int Size);
52
53/* Bison/yacc configuration */
54
55#undef alloca
56#define alloca              AslLocalAllocate
57
58int                         DtCompilerParserlex (void);
59int                         DtCompilerParserparse (void);
60#ifdef YYBYACC
61struct YYLTYPE;
62#endif
63void                        DtCompilerParsererror (
64#ifdef YYBYACC
65				    struct YYLTYPE *loc,
66#endif
67				    char const *msg);
68extern char                 *DtCompilerParsertext;
69extern DT_FIELD             *AslGbl_CurrentField;
70
71extern int                  DtLabelByteOffset;
72extern UINT64               DtCompilerParserlineno; /* Current line number */
73
74extern UINT32               DtTokenFirstLine;
75extern UINT32               DtTokenFirstColumn;
76
77/* Bison/yacc configuration */
78
79#define yytname             DtCompilerParsername
80#define YYDEBUG             1               /* Enable debug output */
81#define YYERROR_VERBOSE     1               /* Verbose error messages */
82#define YYFLAG              -32768
83
84/* Define YYMALLOC/YYFREE to prevent redefinition errors  */
85
86#define YYMALLOC            malloc
87#define YYFREE              free
88
89%}
90
91
92%union {
93    char                *s;
94    DT_FIELD            *f;
95    DT_TABLE_UNIT       *u;
96}
97
98
99%type  <f> Table
100%token <u> DT_PARSEOP_DATA
101%token <u> DT_PARSEOP_LABEL
102%token <u> DT_PARSEOP_STRING_DATA
103%token <u> DT_PARSEOP_LINE_CONTINUATION
104%type  <u> Data
105%type  <u> Datum
106%type  <u> MultiLineData
107%type  <u> MultiLineDataList
108
109
110%%
111
112Table
113    :
114    FieldList { }
115    ;
116
117FieldList
118    : Field FieldList
119    | Field
120    ;
121
122Field
123    : DT_PARSEOP_LABEL ':' Data { DtCreateField ($1, $3, DtLabelByteOffset); }
124    ;
125
126Data
127    : MultiLineDataList        { $$ = $1; }
128    | Datum                    { $$ = $1; }
129    | Datum MultiLineDataList  { $$ = $1; } /* combine the string with strcat */
130    ;
131
132MultiLineDataList
133    : MultiLineDataList MultiLineData { $$ = DtCreateTableUnit (AcpiUtStrcat(AcpiUtStrcat($1->Value, " "), $2->Value), $1->Line, $1->Column); } /* combine the strings with strcat */
134    | MultiLineData                   { $$ = $1; }
135    ;
136
137MultiLineData
138    : DT_PARSEOP_LINE_CONTINUATION Datum { DbgPrint (ASL_PARSE_OUTPUT, "line continuation detected\n"); $$ = $2; }
139    ;
140
141Datum
142    : DT_PARSEOP_DATA        {
143                                 DbgPrint (ASL_PARSE_OUTPUT, "parser        data: [%s]\n", DtCompilerParserlval.s);
144                                 $$ = DtCreateTableUnit (AcpiUtStrdup(DtCompilerParserlval.s), DtTokenFirstLine, DtTokenFirstColumn);
145                             }
146    | DT_PARSEOP_STRING_DATA {
147                                 DbgPrint (ASL_PARSE_OUTPUT, "parser string data: [%s]\n", DtCompilerParserlval.s);
148                                 $$ = DtCreateTableUnit (AcpiUtStrdup(DtCompilerParserlval.s), DtTokenFirstLine, DtTokenFirstColumn);
149                             }
150    ;
151
152
153%%
154
155
156/*
157 * Local support functions, including parser entry point
158 */
159/******************************************************************************
160 *
161 * FUNCTION:    DtCompilerParsererror
162 *
163 * PARAMETERS:  Message             - Parser-generated error message
164 *
165 * RETURN:      None
166 *
167 * DESCRIPTION: Handler for parser errors
168 *
169 *****************************************************************************/
170
171void
172DtCompilerParsererror (
173#ifdef YYBYACC
174    struct YYLTYPE *loc,
175#endif
176    char const              *Message)
177{
178    DtError (ASL_ERROR, ASL_MSG_SYNTAX,
179        AslGbl_CurrentField, (char *) Message);
180}
181
182int
183DtCompilerParserwrap(void)
184{
185  return (1);
186}
187