2 /******************************************************************************
4 * Module Name: prparser.l - Flex input file for preprocessor lexer
6 *****************************************************************************/
9 * Copyright (C) 2000 - 2015, Intel Corp.
10 * All rights reserved.
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13 * modification, are permitted provided that the following conditions
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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.
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.
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33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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45 #include "aslcompiler.h"
46 #include "prparser.y.h"
48 /* Buffer to pass strings to the parser */
50 #define STRING_SETUP strcpy (StringBuffer, PrParsertext);\
51 PrParserlval.str = StringBuffer
53 #define _COMPONENT ACPI_COMPILER
54 ACPI_MODULE_NAME ("prscanner")
57 /* Local prototypes */
71 HexNumber 0[xX][0-9a-fA-F]+
74 Identifier [a-zA-Z][0-9a-zA-Z]*
77 "/*" { if (!PrDoCommentType1 ()) {yyterminate ();} }
78 "//" { if (!PrDoCommentType2 ()) {yyterminate ();} }
80 \( return (EXPOP_PAREN_OPEN);
81 \) return (EXPOP_PAREN_CLOSE);
82 \~ return (EXPOP_ONES_COMPLIMENT);
83 \! return (EXPOP_LOGICAL_NOT);
84 \* return (EXPOP_MULTIPLY);
85 \/ return (EXPOP_DIVIDE);
86 \% return (EXPOP_MODULO);
87 \+ return (EXPOP_ADD);
88 \- return (EXPOP_SUBTRACT);
89 ">>" return (EXPOP_SHIFT_RIGHT);
90 "<<" return (EXPOP_SHIFT_LEFT);
91 \< return (EXPOP_LESS);
92 \> return (EXPOP_GREATER);
93 "<=" return (EXPOP_LESS_EQUAL);
94 ">=" return (EXPOP_GREATER_EQUAL);
95 "==" return (EXPOP_EQUAL);
96 "!=" return (EXPOP_NOT_EQUAL);
97 \& return (EXPOP_AND);
98 \^ return (EXPOP_XOR);
100 "&&" return (EXPOP_LOGICAL_AND);
101 "||" return (EXPOP_LOGICAL_OR);
103 "defined" return (EXPOP_DEFINE);
104 {Identifier} {STRING_SETUP; return (EXPOP_IDENTIFIER);}
106 <<EOF>> return (EXPOP_EOF); /* null end-of-string */
108 {Number} return (EXPOP_NUMBER);
109 {HexNumber} return (EXPOP_HEX_NUMBER);
110 {NewLine} return (EXPOP_NEW_LINE);
111 {WhiteSpace} /* Ignore */
113 . return (EXPOP_EOF);
117 * Local support functions
119 YY_BUFFER_STATE LexBuffer;
122 /******************************************************************************
124 * FUNCTION: PrInitLexer
126 * PARAMETERS: String - Input string to be parsed
128 * RETURN: TRUE if parser returns NULL. FALSE otherwise.
130 * DESCRIPTION: Initialization routine for lexer. The lexer needs
131 * a buffer to handle strings instead of a file.
133 *****************************************************************************/
140 LexBuffer = yy_scan_string (String);
141 return (LexBuffer == NULL);
145 /******************************************************************************
147 * FUNCTION: PrTerminateLexer
153 * DESCRIPTION: Termination routine for thelexer.
155 *****************************************************************************/
162 yy_delete_buffer (LexBuffer);
166 /********************************************************************************
168 * FUNCTION: PrDoCommentType1
174 * DESCRIPTION: Process a new legacy comment. Just toss it.
176 ******************************************************************************/
186 while (((c = input ()) != '*') && (c != EOF))
194 if (((c = input ()) != '/') && (c != EOF))
208 /********************************************************************************
210 * FUNCTION: PrDoCommentType2
216 * DESCRIPTION: Process a new "//" comment. Just toss it.
218 ******************************************************************************/
227 while (((c = input ()) != '\n') && (c != EOF))