[493c477] | 1 | /* emacs edit mode for this file is -*- C++ -*- */ |
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[341696] | 2 | /* $Id$ */ |
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[2dd068] | 3 | |
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[e4fe2b] | 4 | #include "config.h" |
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[9d7aaa] | 5 | |
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[2dd068] | 6 | #include <string.h> |
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| 7 | #include <stdlib.h> |
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| 8 | |
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[650f2d8] | 9 | #include "cf_assert.h" |
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[9d7aaa] | 10 | |
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[2dd068] | 11 | #include "cf_defs.h" |
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| 12 | #include "parseutil.h" |
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| 13 | |
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| 14 | class PUtilBase |
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| 15 | { |
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| 16 | public: |
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| 17 | PUtilBase() {}; |
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| 18 | virtual ~PUtilBase() {} |
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| 19 | virtual PUtilBase * copy() const = 0; |
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| 20 | virtual CanonicalForm getval() const = 0; |
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| 21 | virtual int getintval() const = 0; |
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| 22 | virtual bool isInt() const = 0; |
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| 23 | virtual bool isCF() const = 0; |
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| 24 | virtual bool isVar() const = 0; |
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| 25 | }; |
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| 26 | |
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| 27 | class PUtilInt : public PUtilBase |
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| 28 | { |
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| 29 | private: |
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| 30 | int val; |
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| 31 | public: |
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| 32 | PUtilInt() { val = 0; } |
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| 33 | PUtilInt( int i ) { val = i; } |
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| 34 | ~PUtilInt() {} |
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| 35 | PUtilBase * copy() const { return new PUtilInt( val ); } |
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| 36 | CanonicalForm getval() const { return CanonicalForm( val ); } |
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| 37 | int getintval() const { return val; } |
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| 38 | bool isInt() const { return true; } |
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| 39 | bool isCF() const { return false; } |
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| 40 | bool isVar() const { return false; } |
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| 41 | }; |
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| 42 | |
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| 43 | class PUtilCF : public PUtilBase |
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| 44 | { |
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| 45 | private: |
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| 46 | CanonicalForm val; |
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| 47 | public: |
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| 48 | PUtilCF() { val = 0; } |
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| 49 | PUtilCF( const CanonicalForm & cf ) { val = cf; } |
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| 50 | ~PUtilCF() {} |
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| 51 | PUtilBase * copy() const { return new PUtilCF( val ); } |
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| 52 | CanonicalForm getval() const { return val; } |
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| 53 | int getintval() const { return val.intval(); } |
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| 54 | bool isInt() const { return false; } |
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| 55 | bool isCF() const { return true; } |
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| 56 | bool isVar() const { return false; } |
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| 57 | }; |
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| 58 | |
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| 59 | class PUtilVar : public PUtilBase |
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| 60 | { |
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| 61 | private: |
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| 62 | Variable val; |
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| 63 | public: |
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| 64 | PUtilVar() { val = Variable(); } |
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| 65 | PUtilVar( const Variable & v ) { val = v; } |
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| 66 | ~PUtilVar() {} |
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| 67 | PUtilBase * copy() const { return new PUtilVar( val ); } |
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| 68 | CanonicalForm getval() const { return CanonicalForm( val ); } |
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| 69 | int getintval() const { return 0; } |
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| 70 | bool isInt() const { return false; } |
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| 71 | bool isCF() const { return false; } |
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| 72 | bool isVar() const { return true; } |
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| 73 | }; |
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| 74 | |
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| 75 | class PUtilFactory |
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| 76 | { |
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| 77 | public: |
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| 78 | static PUtilBase * create( ) { return new PUtilInt( 0 ); } |
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| 79 | static PUtilBase * create( int val ) { return new PUtilInt( val ); } |
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| 80 | static PUtilBase * create( const CanonicalForm & cf ) { return new PUtilCF( cf ); } |
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| 81 | static PUtilBase * create( const Variable & v ) { return new PUtilVar( v ); } |
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| 82 | static PUtilBase * create( const char * str ) |
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| 83 | { |
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| 84 | if ( strlen( str ) < 9 ) |
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| 85 | return new PUtilInt( atoi( str ) ); |
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| 86 | else |
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| 87 | return new PUtilCF( CanonicalForm( str ) ); |
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| 88 | } |
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| 89 | }; |
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| 90 | |
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| 91 | ParseUtil::ParseUtil() |
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| 92 | { |
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| 93 | value = PUtilFactory::create(); |
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| 94 | } |
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| 95 | |
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| 96 | ParseUtil::ParseUtil( const ParseUtil &pu ) |
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| 97 | { |
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| 98 | value = pu.value->copy(); |
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| 99 | } |
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| 100 | |
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| 101 | ParseUtil::ParseUtil( const CanonicalForm &f ) |
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| 102 | { |
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| 103 | value = PUtilFactory::create( f ); |
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| 104 | } |
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| 105 | |
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| 106 | ParseUtil::ParseUtil( int i ) |
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| 107 | { |
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| 108 | value = PUtilFactory::create( i ); |
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| 109 | } |
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| 110 | |
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| 111 | ParseUtil::ParseUtil( char * str ) |
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| 112 | { |
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| 113 | value = PUtilFactory::create( str ); |
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| 114 | } |
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| 115 | |
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| 116 | ParseUtil::~ParseUtil() |
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| 117 | { |
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| 118 | delete value; |
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| 119 | } |
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| 120 | |
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| 121 | ParseUtil& ParseUtil::operator= ( const ParseUtil &pu ) |
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| 122 | { |
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| 123 | if ( this != &pu ) { |
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| 124 | delete value; |
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| 125 | value = pu.value->copy(); |
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| 126 | } |
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| 127 | return *this; |
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| 128 | } |
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| 129 | |
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| 130 | ParseUtil& ParseUtil::operator= ( const CanonicalForm &f ) |
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| 131 | { |
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| 132 | delete value; |
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| 133 | value = PUtilFactory::create( f ); |
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| 134 | return *this; |
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| 135 | } |
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| 136 | |
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| 137 | ParseUtil& ParseUtil::operator= ( int i ) |
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| 138 | { |
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| 139 | delete value; |
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| 140 | value = PUtilFactory::create( i ); |
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| 141 | return *this; |
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| 142 | } |
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| 143 | |
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| 144 | ParseUtil& ParseUtil::operator= ( const Variable & v ) |
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| 145 | { |
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| 146 | delete value; |
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| 147 | value = PUtilFactory::create( v ); |
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| 148 | return *this; |
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| 149 | } |
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| 150 | |
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| 151 | CanonicalForm ParseUtil::getval() |
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| 152 | { |
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| 153 | return value->getval(); |
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| 154 | } |
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| 155 | |
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| 156 | int ParseUtil::getintval() |
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| 157 | { |
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| 158 | return value->getintval(); |
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| 159 | } |
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