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 - 2022, 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 */ 161 162 int DtCompilerParsercolumn = 1; 163 int DtLabelByteOffset = 0; 164 int DtCompilerParserByteOffset = 0; 165 166 UINT32 DtTokenFirstLine = 0; 167 UINT32 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 184 185 WhiteSpace [ \t\v\r]+ 186 NewLines [\n]+ 187 188 /* Avoid ", \n, and [] as a part of label name. These are not valid characters of a label name */ 189 LabelName [^ ":\n\[\]]([^":\n\[\]]*[^" :\n\[\]])? 190 191 /* Avoid ", \n, \\, and [] as a part of data. These are not valid characters of data */ 192 Data [^ \\":\n\[\]]([^":\n\[\]\\]*[^" :\n\[\]\\])? 193 194 Text [^ ":\n][^":\n]* 195 Comment \[[^\n\[\]]*\] 196 CommentField {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 */ 275 276 void 277 DtCompilerInitLexer ( 278 FILE *inFile) 279 { 280 yyin = inFile; 281 } 282 283 void 284 DtCompilerTerminateLexer ( 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