1%{
2/******************************************************************************
3 *
4 * Module Name: dtcompilerparser.l - Flex input file for table compiler lexer
5 *
6 *****************************************************************************/
7
8/******************************************************************************
9 *
10 * 1. Copyright Notice
11 *
12 * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp.
13 * All rights reserved.
14 *
15 * 2. License
16 *
17 * 2.1. This is your license from Intel Corp. under its intellectual property
18 * rights. You may have additional license terms from the party that provided
19 * you this software, covering your right to use that party's intellectual
20 * property rights.
21 *
22 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
23 * copy of the source code appearing in this file ("Covered Code") an
24 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
25 * base code distributed originally by Intel ("Original Intel Code") to copy,
26 * make derivatives, distribute, use and display any portion of the Covered
27 * Code in any form, with the right to sublicense such rights; and
28 *
29 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
30 * license (with the right to sublicense), under only those claims of Intel
31 * patents that are infringed by the Original Intel Code, to make, use, sell,
32 * offer to sell, and import the Covered Code and derivative works thereof
33 * solely to the minimum extent necessary to exercise the above copyright
34 * license, and in no event shall the patent license extend to any additions
35 * to or modifications of the Original Intel Code. No other license or right
36 * is granted directly or by implication, estoppel or otherwise;
37 *
38 * The above copyright and patent license is granted only if the following
39 * conditions are met:
40 *
41 * 3. Conditions
42 *
43 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
44 * Redistribution of source code of any substantial portion of the Covered
45 * Code or modification with rights to further distribute source must include
46 * the above Copyright Notice, the above License, this list of Conditions,
47 * and the following Disclaimer and Export Compliance provision. In addition,
48 * Licensee must cause all Covered Code to which Licensee contributes to
49 * contain a file documenting the changes Licensee made to create that Covered
50 * Code and the date of any change. Licensee must include in that file the
51 * documentation of any changes made by any predecessor Licensee. Licensee
52 * must include a prominent statement that the modification is derived,
53 * directly or indirectly, from Original Intel Code.
54 *
55 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
56 * Redistribution of source code of any substantial portion of the Covered
57 * Code or modification without rights to further distribute source must
58 * include the following Disclaimer and Export Compliance provision in the
59 * documentation and/or other materials provided with distribution. In
60 * addition, Licensee may not authorize further sublicense of source of any
61 * portion of the Covered Code, and must include terms to the effect that the
62 * license from Licensee to its licensee is limited to the intellectual
63 * property embodied in the software Licensee provides to its licensee, and
64 * not to intellectual property embodied in modifications its licensee may
65 * make.
66 *
67 * 3.3. Redistribution of Executable. Redistribution in executable form of any
68 * substantial portion of the Covered Code or modification must reproduce the
69 * above Copyright Notice, and the following Disclaimer and Export Compliance
70 * provision in the documentation and/or other materials provided with the
71 * distribution.
72 *
73 * 3.4. Intel retains all right, title, and interest in and to the Original
74 * Intel Code.
75 *
76 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
77 * Intel shall be used in advertising or otherwise to promote the sale, use or
78 * other dealings in products derived from or relating to the Covered Code
79 * without prior written authorization from Intel.
80 *
81 * 4. Disclaimer and Export Compliance
82 *
83 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
84 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
85 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
86 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
87 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
88 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
89 * PARTICULAR PURPOSE.
90 *
91 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
92 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
93 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
94 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
95 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
96 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
97 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
98 * LIMITED REMEDY.
99 *
100 * 4.3. Licensee shall not export, either directly or indirectly, any of this
101 * software or system incorporating such software without first obtaining any
102 * required license or other approval from the U. S. Department of Commerce or
103 * any other agency or department of the United States Government. In the
104 * event Licensee exports any such software from the United States or
105 * re-exports any such software from a foreign destination, Licensee shall
106 * ensure that the distribution and export/re-export of the software is in
107 * compliance with all laws, regulations, orders, or other restrictions of the
108 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
109 * any of its subsidiaries will export/re-export any technical data, process,
110 * software, or service, directly or indirectly, to any country for which the
111 * United States government or any agency thereof requires an export license,
112 * other governmental approval, or letter of assurance, without first obtaining
113 * such license, approval or letter.
114 *
115 *****************************************************************************
116 *
117 * Alternatively, you may choose to be licensed under the terms of the
118 * following license:
119 *
120 * Redistribution and use in source and binary forms, with or without
121 * modification, are permitted provided that the following conditions
122 * are met:
123 * 1. Redistributions of source code must retain the above copyright
124 *    notice, this list of conditions, and the following disclaimer,
125 *    without modification.
126 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
127 *    substantially similar to the "NO WARRANTY" disclaimer below
128 *    ("Disclaimer") and any redistribution must be conditioned upon
129 *    including a substantially similar Disclaimer requirement for further
130 *    binary redistribution.
131 * 3. Neither the names of the above-listed copyright holders nor the names
132 *    of any contributors may be used to endorse or promote products derived
133 *    from this software without specific prior written permission.
134 *
135 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
136 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
137 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
138 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
139 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
140 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
141 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
142 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
143 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
144 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
145 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
146 *
147 * Alternatively, you may choose to be licensed under the terms of the
148 * GNU General Public License ("GPL") version 2 as published by the Free
149 * Software Foundation.
150 *
151 *****************************************************************************/
152
153#include <contrib/dev/acpica/compiler/aslcompiler.h>
154#include "dtcompilerparser.y.h"
155
156
157#define _COMPONENT          ACPI_COMPILER
158        ACPI_MODULE_NAME    ("dtcompilerscanner")
159
160/* handle locations */
161
162int DtCompilerParsercolumn = 1;
163int DtLabelByteOffset = 0;
164int DtCompilerParserByteOffset = 0;
165
166UINT32 DtTokenFirstLine = 0;
167UINT32 DtTokenFirstColumn = 0;
168
169#define YY_USER_ACTION \
170            DtTokenFirstLine = DtCompilerParserlineno; \
171            DtTokenFirstColumn = DtCompilerParsercolumn; \
172            DtCompilerParsercolumn += DtCompilerParserleng; \
173            DtCompilerParserByteOffset += DtCompilerParserleng; \
174            DbgPrint (ASL_PARSE_OUTPUT,\
175                "user action occurred. DtCompilerParserlloc.first_line: %u\n",\
176                DtTokenFirstLine);
177%}
178
179%option nounput noinput yylineno
180
181    /* Indicates a state used for parsing multiline C comments */
182%x ML_COMMENT
183%x DATA_STATE
184
185WhiteSpace      [ \t\v\r]+
186NewLines        [\n]+
187
188    /* Avoid ", \n, and [] as a part of label name. These are not valid characters of a label name */
189LabelName       [^ ":\n\[\]]([^":\n\[\]]*[^" :\n\[\]])?
190
191    /* Avoid ", \n, \\, and [] as a part of data. These are not valid characters of data */
192Data            [^ \\":\n\[\]]([^":\n\[\]\\]*[^" :\n\[\]\\])?
193
194Text            [^ ":\n][^":\n]*
195Comment         \[[^\n\[\]]*\]
196CommentField    {LabelName}{WhiteSpace}*:{WhiteSpace}{Comment}?$
197
198
199%%
200
201<DATA_STATE>{WhiteSpace}"\\\n" {
202        DbgPrint(ASL_PARSE_OUTPUT,"Continuation matched\n");
203        return (DT_PARSEOP_LINE_CONTINUATION);
204    }
205
206":" {
207        DbgPrint(ASL_PARSE_OUTPUT, ": Matched\n");
208        BEGIN (DATA_STATE);
209        return (':');
210    }
211
212<INITIAL,DATA_STATE>{WhiteSpace} { DbgPrint(ASL_PARSE_OUTPUT,"Whitespace matched\n"); }
213
214<INITIAL,DATA_STATE>{Comment}    { DbgPrint(ASL_PARSE_OUTPUT,"Comment matched\n"); }
215
216"/*"                     { BEGIN (ML_COMMENT); }
217<ML_COMMENT>"*/"         { BEGIN (INITIAL); }
218<ML_COMMENT>"*/\n"       { BEGIN (INITIAL); }
219<ML_COMMENT>([^*]|\n)+|. /* Ignore */
220"//".*                   /* Ignore */
221
222
223<DATA_STATE>{Data} {
224      char *s;
225      int size = strlen (DtCompilerParsertext);
226      s=UtLocalCacheCalloc (size + 1);
227      AcpiUtSafeStrncpy (s, DtCompilerParsertext, size + 1);
228      DtCompilerParserlval.s = s;
229      DbgPrint (ASL_PARSE_OUTPUT, "Data: %s\n", s);
230      return (DT_PARSEOP_DATA);
231}
232
233{CommentField}  /* ignore */
234
235{LabelName} {
236    char *s;
237    int size = strlen (DtCompilerParsertext);
238    s=UtLocalCacheCalloc (size + 1);
239    AcpiUtSafeStrncpy (s, DtCompilerParsertext, size + 1);
240    DtCompilerParserlval.u = (DT_TABLE_UNIT *) UtLocalCacheCalloc (sizeof (DT_TABLE_UNIT));
241    DtCompilerParserlval.u->Value = s;
242    DtCompilerParserlval.u->Line = DtCompilerParserlineno;
243    DtCompilerParserlval.u->Column = DtCompilerParsercolumn;
244    DtLabelByteOffset = DtCompilerParserByteOffset;
245    DbgPrint (ASL_PARSE_OUTPUT, "Label: %s\n", s);
246    return (DT_PARSEOP_LABEL);
247}
248
249
250<DATA_STATE>\"{Text}?\" { // remove outer quotes from the string, they are unnecessary
251    char *s;
252    int size = strlen (DtCompilerParsertext);
253    s=UtLocalCacheCalloc (size - 1);
254    AcpiUtSafeStrncpy (s, DtCompilerParsertext + 1, size - 1);
255    DtCompilerParserlval.s = s;
256    DbgPrint (ASL_PARSE_OUTPUT, "String Data: %s\n", s);
257    BEGIN (INITIAL);
258    return (DT_PARSEOP_STRING_DATA);
259}
260
261
262<INITIAL,DATA_STATE>{NewLines} {
263    DbgPrint(ASL_PARSE_OUTPUT,
264        "Newline matched (data state). Current line number: %u\n",DtCompilerParserlineno);
265    BEGIN (INITIAL); DtCompilerParsercolumn = 1;
266}
267
268
269%%
270
271
272/*
273 * Local support functions
274 */
275
276void
277DtCompilerInitLexer (
278    FILE                *inFile)
279{
280    yyin = inFile;
281}
282
283void
284DtCompilerTerminateLexer (
285    void)
286{
287    /*
288     * Flex/Bison increments the lineno for the EOF so decrement by 1 to get
289     * the correct number of lines.
290     */
291    AslGbl_CurrentLineNumber = DtCompilerParserlineno - 1;
292    AslGbl_InputByteCount = DtCompilerParserByteOffset;
293}
294