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Diffstat (limited to 'source/compiler/dtcompilerparser.l')
| -rw-r--r-- | source/compiler/dtcompilerparser.l | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/source/compiler/dtcompilerparser.l b/source/compiler/dtcompilerparser.l new file mode 100644 index 000000000000..0d68f41e4b2d --- /dev/null +++ b/source/compiler/dtcompilerparser.l @@ -0,0 +1,288 @@ +%{ +/****************************************************************************** + * + * Module Name: dtcompilerparser.l - Flex input file for table compiler lexer + * + *****************************************************************************/ + +/****************************************************************************** + * + * 1. Copyright Notice + * + * Some or all of this work - Copyright (c) 1999 - 2018, Intel Corp. + * All rights reserved. + * + * 2. License + * + * 2.1. This is your license from Intel Corp. under its intellectual property + * rights. You may have additional license terms from the party that provided + * you this software, covering your right to use that party's intellectual + * property rights. + * + * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a + * copy of the source code appearing in this file ("Covered Code") an + * irrevocable, perpetual, worldwide license under Intel's copyrights in the + * base code distributed originally by Intel ("Original Intel Code") to copy, + * make derivatives, distribute, use and display any portion of the Covered + * Code in any form, with the right to sublicense such rights; and + * + * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent + * license (with the right to sublicense), under only those claims of Intel + * patents that are infringed by the Original Intel Code, to make, use, sell, + * offer to sell, and import the Covered Code and derivative works thereof + * solely to the minimum extent necessary to exercise the above copyright + * license, and in no event shall the patent license extend to any additions + * to or modifications of the Original Intel Code. No other license or right + * is granted directly or by implication, estoppel or otherwise; + * + * The above copyright and patent license is granted only if the following + * conditions are met: + * + * 3. Conditions + * + * 3.1. Redistribution of Source with Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification with rights to further distribute source must include + * the above Copyright Notice, the above License, this list of Conditions, + * and the following Disclaimer and Export Compliance provision. In addition, + * Licensee must cause all Covered Code to which Licensee contributes to + * contain a file documenting the changes Licensee made to create that Covered + * Code and the date of any change. Licensee must include in that file the + * documentation of any changes made by any predecessor Licensee. Licensee + * must include a prominent statement that the modification is derived, + * directly or indirectly, from Original Intel Code. + * + * 3.2. Redistribution of Source with no Rights to Further Distribute Source. + * Redistribution of source code of any substantial portion of the Covered + * Code or modification without rights to further distribute source must + * include the following Disclaimer and Export Compliance provision in the + * documentation and/or other materials provided with distribution. In + * addition, Licensee may not authorize further sublicense of source of any + * portion of the Covered Code, and must include terms to the effect that the + * license from Licensee to its licensee is limited to the intellectual + * property embodied in the software Licensee provides to its licensee, and + * not to intellectual property embodied in modifications its licensee may + * make. + * + * 3.3. Redistribution of Executable. Redistribution in executable form of any + * substantial portion of the Covered Code or modification must reproduce the + * above Copyright Notice, and the following Disclaimer and Export Compliance + * provision in the documentation and/or other materials provided with the + * distribution. + * + * 3.4. Intel retains all right, title, and interest in and to the Original + * Intel Code. + * + * 3.5. Neither the name Intel nor any other trademark owned or controlled by + * Intel shall be used in advertising or otherwise to promote the sale, use or + * other dealings in products derived from or relating to the Covered Code + * without prior written authorization from Intel. + * + * 4. Disclaimer and Export Compliance + * + * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED + * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE + * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE, + * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY + * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY + * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A + * PARTICULAR PURPOSE. + * + * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES + * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR + * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT, + * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY + * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL + * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS + * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY + * LIMITED REMEDY. + * + * 4.3. Licensee shall not export, either directly or indirectly, any of this + * software or system incorporating such software without first obtaining any + * required license or other approval from the U. S. Department of Commerce or + * any other agency or department of the United States Government. In the + * event Licensee exports any such software from the United States or + * re-exports any such software from a foreign destination, Licensee shall + * ensure that the distribution and export/re-export of the software is in + * compliance with all laws, regulations, orders, or other restrictions of the + * U.S. Export Administration Regulations. Licensee agrees that neither it nor + * any of its subsidiaries will export/re-export any technical data, process, + * software, or service, directly or indirectly, to any country for which the + * United States government or any agency thereof requires an export license, + * other governmental approval, or letter of assurance, without first obtaining + * such license, approval or letter. + * + ***************************************************************************** + * + * Alternatively, you may choose to be licensed under the terms of the + * following license: + * + * 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. + * + * 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 + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * 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 DAMAGE. + * + * Alternatively, you may choose to be licensed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + * + *****************************************************************************/ + +#include "aslcompiler.h" +#include "dtcompilerparser.y.h" + +YYSTYPE DtCompilerlval; + +#define _COMPONENT ACPI_COMPILER + ACPI_MODULE_NAME ("dtcompilerscanner") + +/* handle locations */ + +int DtCompilerParsercolumn = 1; +int DtCompilerParserByteOffset = 0; + +#define YY_USER_ACTION \ + DtCompilerParserlloc.first_line = DtCompilerParserlloc.last_line = DtCompilerParserlineno; \ + DtCompilerParserlloc.first_column = DtCompilerParsercolumn; \ + DtCompilerParserlloc.first_byte_offset = DtCompilerParserByteOffset; \ + DtCompilerParserlloc.last_column = DtCompilerParsercolumn + DtCompilerParserleng-1; \ + DtCompilerParsercolumn += DtCompilerParserleng; \ + DtCompilerParserByteOffset += DtCompilerParserleng; \ + DbgPrint (ASL_PARSE_OUTPUT,\ + "user action occurred. DtCompilerParserlloc.first_line: %u offset: %u\n",\ + DtCompilerParserlloc.first_line, DtCompilerParserlloc.first_byte_offset); +%} + +%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.s = s; + 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; +} |