1 karl 1.18 //%2005////////////////////////////////////////////////////////////////////////
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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 mike 1.8 //
12 // Permission is hereby granted, free of charge, to any person obtaining a copy
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13 kumpf 1.12 // of this software and associated documentation files (the "Software"), to
14 // deal in the Software without restriction, including without limitation the
15 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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16 mike 1.8 // sell copies of the Software, and to permit persons to whom the Software is
17 // furnished to do so, subject to the following conditions:
18 //
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19 kumpf 1.12 // THE ABOVE COPYRIGHT NOTICE AND THIS PERMISSION NOTICE SHALL BE INCLUDED IN
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20 mike 1.8 // ALL COPIES OR SUBSTANTIAL PORTIONS OF THE SOFTWARE. THE SOFTWARE IS PROVIDED
21 // "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
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22 kumpf 1.12 // LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
23 // PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
24 // HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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25 mike 1.8 // ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 //
28 //==============================================================================
29 //
30 // Author: Bob Blair (bblair@bmc.com)
31 //
32 // Modified By:
33 //
34 //%/////////////////////////////////////////////////////////////////////////////
35
36
37 //
38 // Header for a class to generate CIMValue objects from String values
39 //
40 //
41 //
42 // This is a generic parser class from which controllers for particular
43 // yacc parsers can be derived. It keeps enough state information that
44 // you should be able to get by without a reentrant parser. You should
45 // compile both parser and lexer with a C++ compiler, although there
46 mike 1.8 // is no need to generate a C++ lexer.
47 //
48 // The include file and compile-from-String techniques used here are
49 // supported only by bison and flex.
50 //
51
52 #ifndef _PARSER_H_
53 #define _PARSER_H_
54
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55 marek 1.15 #include <Pegasus/Common/Config.h>
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56 mike 1.8 #include <cstdio>
57 #include <Pegasus/Common/String.h>
58 #include <Pegasus/Common/Stack.h>
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59 kumpf 1.13 #include <Pegasus/Compiler/Linkage.h>
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60 mike 1.8
61 PEGASUS_USING_STD;
62 PEGASUS_USING_PEGASUS;
63
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64 kumpf 1.9 #define CIMMOF_CONSTANT_VALUE 1
65 #define CIMMOF_ARRAY_VALUE 2
66 #define CIMMOF_REFERENCE_VALUE 3
67 #define CIMMOF_NULL_VALUE 4
68
69 typedef struct typedInitializerValue {
70 Uint16 type;
71 const String *value;
72 } TYPED_INITIALIZER_VALUE;
73
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74 mike 1.8 struct bufstate {
75 void *buffer_state; // the YY_BUFFER_STATE of the stacked context
76 String filename; // the name of the file open in the stacked context
77 int lineno; // the line number of the file
78 };
79
80 class PEGASUS_COMPILER_LINKAGE parser {
81 private:
82 unsigned int _buffer_size; // the value of the YY_BUFFER_SIZE macro
83 Stack<bufstate*> _include_stack; // a stack of YY_BUFFER_STATEs
84 String _current_filename; // name of the file being parsed
85 unsigned int _lineno; // current line number in the file
86 protected:
87 void push_statebuff(bufstate *statebuff) { _include_stack.push(statebuff); }
88 bufstate *pop_statebuff();
89 public:
90
91 // Constructor, destructor
92 parser() : _buffer_size(16384), _lineno(0) {;}
93 virtual ~parser() {;}
94
95 mike 1.8 virtual int parse() = 0; // call the parser main yy_parse()
96 virtual int wrap(); // handle the end of the current stream
97
98 int setInputBufferFromName(const String &filename); // start parsing this file
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99 kumpf 1.14 virtual int setInputBuffer(const FILE *f,
100 Boolean closeCurrent) = 0; // start parsing this handle
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101 mike 1.8 // int setInputBuffer(const char *buf); // start parsing this String
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102 kumpf 1.14 virtual int setInputBuffer(void *buffstate,
103 Boolean closeCurrent) = 0; // start parsing this buffer
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104 mike 1.8
105 // given a file stream, treat it as an include file
106 virtual int enterInlineInclude(const FILE *f) = 0;
107 virtual int wrapCurrentBuffer() = 0;
108
109 unsigned int get_buffer_size() { return _buffer_size; }
110 void set_buffer_size(unsigned int siz) { _buffer_size = siz; }
111
112 // We keep track of the filename associated with the current input
113 // buffer so we can report on it.
114 void set_current_filename(const String &filename)
115 { _current_filename = filename; }
116 const String &get_current_filename() const { return _current_filename; }
117
118 // Ditto the line number
119 void set_lineno(int n) { _lineno = n; }
120 void increment_lineno() { ++_lineno; }
121 unsigned int get_lineno() const { return _lineno; }
122
123 // This is the main entry point for parser error logging
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124 kumpf 1.10 virtual void log_parse_error(char *token, const char *errmsg) const;
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125 mike 1.8 };
126 #endif
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