1 karl 1.20 //%2006////////////////////////////////////////////////////////////////////////
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2 mike 1.8 //
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3 karl 1.17 // Copyright (c) 2000, 2001, 2002 BMC Software; Hewlett-Packard Development
4 // Company, L.P.; IBM Corp.; The Open Group; Tivoli Systems.
5 // Copyright (c) 2003 BMC Software; Hewlett-Packard Development Company, L.P.;
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6 karl 1.16 // IBM Corp.; EMC Corporation, The Open Group.
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7 karl 1.17 // Copyright (c) 2004 BMC Software; Hewlett-Packard Development Company, L.P.;
8 // IBM Corp.; EMC Corporation; VERITAS Software Corporation; The Open Group.
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9 karl 1.18 // Copyright (c) 2005 Hewlett-Packard Development Company, L.P.; IBM Corp.;
10 // EMC Corporation; VERITAS Software Corporation; The Open Group.
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11 karl 1.20 // Copyright (c) 2006 Hewlett-Packard Development Company, L.P.; IBM Corp.;
12 // EMC Corporation; Symantec Corporation; The Open Group.
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13 mike 1.8 //
14 // Permission is hereby granted, free of charge, to any person obtaining a copy
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15 kumpf 1.12 // of this software and associated documentation files (the "Software"), to
16 // deal in the Software without restriction, including without limitation the
17 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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18 mike 1.8 // sell copies of the Software, and to permit persons to whom the Software is
19 // furnished to do so, subject to the following conditions:
20 //
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21 kumpf 1.12 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
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22 mike 1.8 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
23 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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24 kumpf 1.12 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
25 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
26 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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27 mike 1.8 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
29 //
30 //==============================================================================
31 //
32 // Author: Bob Blair (bblair@bmc.com)
33 //
34 // Modified By:
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35 jim.wunderlich 1.19 // Jim Wunderlich (Jim_Wunderlich@prodigy.net)
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36 mike 1.8 //
37 //%/////////////////////////////////////////////////////////////////////////////
38
39
40 //
41 // Header for a class to generate CIMValue objects from String values
42 //
43 //
44 //
45 // This is a generic parser class from which controllers for particular
46 // yacc parsers can be derived. It keeps enough state information that
47 // you should be able to get by without a reentrant parser. You should
48 // compile both parser and lexer with a C++ compiler, although there
49 // is no need to generate a C++ lexer.
50 //
51 // The include file and compile-from-String techniques used here are
52 // supported only by bison and flex.
53 //
54
55 #ifndef _PARSER_H_
56 #define _PARSER_H_
57 mike 1.8
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58 marek 1.15 #include <Pegasus/Common/Config.h>
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59 mike 1.8 #include <cstdio>
60 #include <Pegasus/Common/String.h>
61 #include <Pegasus/Common/Stack.h>
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62 kumpf 1.13 #include <Pegasus/Compiler/Linkage.h>
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63 jim.wunderlich 1.19 #include <Pegasus/Common/FileSystem.h>
64
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65 mike 1.8
66 PEGASUS_USING_STD;
67 PEGASUS_USING_PEGASUS;
68
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69 kumpf 1.9 #define CIMMOF_CONSTANT_VALUE 1
70 #define CIMMOF_ARRAY_VALUE 2
71 #define CIMMOF_REFERENCE_VALUE 3
72 #define CIMMOF_NULL_VALUE 4
73
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74 jim.wunderlich 1.19 // #define DEBUG_INCLUDE // enables include file processing debug printout
75
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76 kumpf 1.9 typedef struct typedInitializerValue {
77 Uint16 type;
78 const String *value;
79 } TYPED_INITIALIZER_VALUE;
80
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81 mike 1.8 struct bufstate {
82 void *buffer_state; // the YY_BUFFER_STATE of the stacked context
83 String filename; // the name of the file open in the stacked context
84 int lineno; // the line number of the file
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85 jim.wunderlich 1.19 String filenamePath; //the path of the file open in the stacked context
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86 mike 1.8 };
87
88 class PEGASUS_COMPILER_LINKAGE parser {
89 private:
90 unsigned int _buffer_size; // the value of the YY_BUFFER_SIZE macro
91 Stack<bufstate*> _include_stack; // a stack of YY_BUFFER_STATEs
92 String _current_filename; // name of the file being parsed
93 unsigned int _lineno; // current line number in the file
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94 jim.wunderlich 1.19 String _current_filenamePath; // path of the file being parsed
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95 mike 1.8 protected:
96 void push_statebuff(bufstate *statebuff) { _include_stack.push(statebuff); }
97 bufstate *pop_statebuff();
98 public:
99
100 // Constructor, destructor
101 parser() : _buffer_size(16384), _lineno(0) {;}
102 virtual ~parser() {;}
103
104 virtual int parse() = 0; // call the parser main yy_parse()
105 virtual int wrap(); // handle the end of the current stream
106
107 int setInputBufferFromName(const String &filename); // start parsing this file
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108 kumpf 1.14 virtual int setInputBuffer(const FILE *f,
109 Boolean closeCurrent) = 0; // start parsing this handle
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110 mike 1.8 // int setInputBuffer(const char *buf); // start parsing this String
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111 kumpf 1.14 virtual int setInputBuffer(void *buffstate,
112 Boolean closeCurrent) = 0; // start parsing this buffer
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113 mike 1.8
114 // given a file stream, treat it as an include file
115 virtual int enterInlineInclude(const FILE *f) = 0;
116 virtual int wrapCurrentBuffer() = 0;
117
118 unsigned int get_buffer_size() { return _buffer_size; }
119 void set_buffer_size(unsigned int siz) { _buffer_size = siz; }
120
121 // We keep track of the filename associated with the current input
122 // buffer so we can report on it.
123 void set_current_filename(const String &filename)
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124 jim.wunderlich 1.19 {
125 _current_filename = filename;
126
127 #ifdef DEBUG_INCLUDE
128 cout << "cimmof parser - setting path = " << get_current_filenamePath() << endl; // DEBUG
129 #endif // DEBUG_INCLUDE
130
131 String includePathTemp = FileSystem::extractFilePath(filename);
132
133 // ************************************************************
134 // if the filename path consisted of just the file name
135 // becasue it is in the current directory then extractFilePath
136 // returns just the filename rather than "dot". The following
137 // test is to prevent adding file names to the include path.
138 // ****************************************************************
139 if (includePathTemp == filename)
140 {
141 includePathTemp = ".";
142 }
143
144 set_current_filenamePath(includePathTemp);
145 jim.wunderlich 1.19
146 #ifdef DEBUG_INCLUDE
147 cout << "cimmof parser set filename = " << filename
148 << " include path = " << get_current_filenamePath()
149 << endl; // DEBUG
150 #endif // DEBUG_INCLUDE
151 }
152
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153 mike 1.8 const String &get_current_filename() const { return _current_filename; }
154
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155 jim.wunderlich 1.19 // We keep track of the filename path associated with the current input
156 // buffer so we can use it to search for include files in that same directory
157 void set_current_filenamePath(const String &filenamePath)
158 { _current_filenamePath = filenamePath; }
159
160 const String &get_current_filenamePath() const { return _current_filenamePath; }
161
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162 mike 1.8 // Ditto the line number
163 void set_lineno(int n) { _lineno = n; }
164 void increment_lineno() { ++_lineno; }
165 unsigned int get_lineno() const { return _lineno; }
166
167 // This is the main entry point for parser error logging
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168 kumpf 1.10 virtual void log_parse_error(char *token, const char *errmsg) const;
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169 mike 1.8 };
170 #endif
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