dtparser.l revision 306536 
1%{
2/******************************************************************************
3 *
4 * Module Name: dtparser.l - Flex input file for table compiler lexer
5 *
6 *****************************************************************************/
7
8/*
9 * Copyright (C) 2000 - 2016, 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 MERCHANTIBILITY 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 <contrib/dev/acpica/compiler/aslcompiler.h>
46#include "dtparser.y.h"
47
48#define YY_NO_INPUT     /* No file input, we use strings only */
49
50#define _COMPONENT          ACPI_COMPILER
51        ACPI_MODULE_NAME    ("dtscanner")
52%}
53
54%option noyywrap
55%option nounput
56
57Number          [0-9a-fA-F]+
58HexNumber       0[xX][0-9a-fA-F]+
59DecimalNumber   0[dD][0-9]+
60LabelRef        $[a-zA-Z][0-9a-zA-Z]*
61WhiteSpace      [ \t\v\r]+
62NewLine         [\n]
63
64%%
65
66\(              return (EXPOP_PAREN_OPEN);
67\)              return (EXPOP_PAREN_CLOSE);
68\~              return (EXPOP_ONES_COMPLIMENT);
69\!              return (EXPOP_LOGICAL_NOT);
70\*              return (EXPOP_MULTIPLY);
71\/              return (EXPOP_DIVIDE);
72\%              return (EXPOP_MODULO);
73\+              return (EXPOP_ADD);
74\-              return (EXPOP_SUBTRACT);
75">>"            return (EXPOP_SHIFT_RIGHT);
76"<<"            return (EXPOP_SHIFT_LEFT);
77\<              return (EXPOP_LESS);
78\>              return (EXPOP_GREATER);
79"<="            return (EXPOP_LESS_EQUAL);
80">="            return (EXPOP_GREATER_EQUAL);
81"=="            return (EXPOP_EQUAL);
82"!="            return (EXPOP_NOT_EQUAL);
83\&              return (EXPOP_AND);
84\^              return (EXPOP_XOR);
85\|              return (EXPOP_OR);
86"&&"            return (EXPOP_LOGICAL_AND);
87"||"            return (EXPOP_LOGICAL_OR);
88<<EOF>>         return (EXPOP_EOF); /* null end-of-string */
89
90{LabelRef}      return (EXPOP_LABEL);
91{Number}        return (EXPOP_NUMBER);
92{HexNumber}     return (EXPOP_HEX_NUMBER);
93{NewLine}       return (EXPOP_NEW_LINE);
94{WhiteSpace}    /* Ignore */
95
96.               return (EXPOP_EOF);
97
98%%
99
100/*
101 * Local support functions
102 */
103YY_BUFFER_STATE         LexBuffer;
104
105/******************************************************************************
106 *
107 * FUNCTION:    DtInitLexer, DtTerminateLexer
108 *
109 * PARAMETERS:  String              - Input string to be parsed
110 *
111 * RETURN:      None
112 *
113 * DESCRIPTION: Initialization and termination routines for lexer. Lexer needs
114 *              a buffer to handle strings instead of a file.
115 *
116 *****************************************************************************/
117
118int
119DtInitLexer (
120    char                    *String)
121{
122
123    LexBuffer = yy_scan_string (String);
124    return (LexBuffer == NULL);
125}
126
127void
128DtTerminateLexer (
129    void)
130{
131
132    yy_delete_buffer (LexBuffer);
133}
134