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annotate anagram/support/agstring.h @ 17:12171da8943f

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author David A. Holland
date Tue, 31 May 2022 01:56:37 -0400
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1 /**********************************************************
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2
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3 The AnaGram Class Library
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4
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5 The AgString Class
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6 Copyright 1997 Parsifal Software. All Rights Reserved.
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7 See the file COPYING for license and usage terms.
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8
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9 ***********************************************************/
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10
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11 #ifndef AGSTRING_H
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12 #define AGSTRING_H
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13
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14 #include <string.h>
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15 #include "port.h"
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16
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17 #include "agcontainer.h"
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18
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19
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20 class AgString : public AgIndexedContainer<char> {
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21 protected:
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22 char *store;
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23
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24 void lock();
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25 void unlock();
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26 void allocate(unsigned n);
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27
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28 public:
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29 class Cut {
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30 char *store;
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31 int index;
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32
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33 void lock();
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34 void unlock();
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35
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36 public:
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37 Cut() : store(0), index(0) {}
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38 Cut(const AgString &s, const int x);
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39 ~Cut() { unlock(); }
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40 int exists() const { return store != 0; }
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41
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42 char &character() const;
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43
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44 AgString leftI() const;
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45 AgString leftX() const;
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46 AgString rightI() const;
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47 AgString rightX() const;
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48
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49 //AgString insertLeft(const AgString &s) const;
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50 //AgString insertLeft(const char *s) const;
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51 //AgString insertRight(const AgString &s) const;
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52 //AgString insertRight(const char *s) const;
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53 //String replace(const AgString &s) const;
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54 //String replace(const char *s) const;
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55 };
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56
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57 inline AgString() : store(0) {}
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58 AgString(const unsigned n);
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59
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60 AgString(const char *s);
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61 AgString(const char *s, const unsigned n);
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62 AgString(const AgString &s, const unsigned n);
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63 AgString(const AgString &s);
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64 AgString &operator = (const AgString &s);
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65 AgString &operator = (const char *s);
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66
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67 char &operator [] (const unsigned x);
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68
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69 const char &operator [] (const unsigned x) const;
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70 AgString &discardData();
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71 ~AgString();
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72
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73 AgString concat(const char *s) const;
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74 AgString concat(const AgString s) const;
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75
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76 inline int exists() const { return store != 0; }
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77 inline unsigned size() const { return store ? strlen(store) : 0; }
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78
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79 AgString &toUpper();
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80 //AgString &toLower();
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81
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82 inline char *pointer() const {
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83 return store;
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84 }
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85 inline unsigned char *unsignedPointer() const {
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86 return (unsigned char *) store;
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87 }
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88
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89 int operator < (const AgString &s) const;
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90 int operator <= (const AgString &s) const;
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91 int operator > (const AgString &s) const;
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92 int operator >= (const AgString &s) const;
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93 int operator == (const AgString &s) const;
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94 int operator != (const AgString &s) const;
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95 int iEq(const AgString &s) const;
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96
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97 int operator < (const char *s) const;
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98 int operator <= (const char *s) const;
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99 int operator > (const char *s) const;
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100 int operator >= (const char *s) const;
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101 int operator == (const char *s) const;
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102 int operator != (const char *s) const;
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103 int iEq(const char *s) const;
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104
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105 static AgString format(const char *fs, ...) PRINTFFY(1,2);
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106
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107 Cut firstCut(const char c) const;
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108 Cut lastCut(const char c) const;
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109 Cut firstCut(const char* s) const;
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110 Cut lastCut(const char* s) const;
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111 };
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112
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113 inline AgString::AgString(const AgString &s)
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114 : AgIndexedContainer<char>()
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115 {
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116 store = s.store;
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117 lock();
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118 }
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119
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120 inline AgString::~AgString() {
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121 unlock();
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122 }
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123
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124 inline AgString &AgString::discardData() {
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125 unlock();
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126 store = 0;
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127 return *this;
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128 }
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129
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130 inline AgString &AgString::operator = (const char *s) {
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131 return *this = AgString(s);
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132 }
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133
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134 #endif /* AGSTRING_H */