| 1 | #ifndef SHSTR_H__ |
1 | #ifndef SHSTR_H__ |
| 2 | #define SHSTR_H__ |
2 | #define SHSTR_H__ |
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3 | |
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4 | #include <sstream> |
| 3 | |
5 | |
| 4 | #include "util.h" |
6 | #include "util.h" |
| 5 | |
7 | |
| 6 | extern int buf_overflow (const char *buf1, const char *buf2, int bufsize); |
8 | extern int buf_overflow (const char *buf1, const char *buf2, int bufsize); |
| 7 | |
9 | |
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| 27 | } |
29 | } |
| 28 | |
30 | |
| 29 | int length () const |
31 | int length () const |
| 30 | { |
32 | { |
| 31 | return length (s); |
33 | return length (s); |
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34 | } |
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35 | |
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36 | // returns wether this shared string begins with the given prefix, |
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37 | // used mainly for searched when users give only the start of a name. |
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38 | bool begins_with (const char *prefix) const |
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39 | { |
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40 | int plen = strlen (prefix); |
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41 | return !strncasecmp (s, prefix, plen) && length () >= plen; |
| 32 | } |
42 | } |
| 33 | |
43 | |
| 34 | static const char *find (const char *s); |
44 | static const char *find (const char *s); |
| 35 | static const char *intern (const char *s); |
45 | static const char *intern (const char *s); |
| 36 | |
46 | |
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| 74 | |
84 | |
| 75 | const shstr &operator =(const char *str) |
85 | const shstr &operator =(const char *str) |
| 76 | { |
86 | { |
| 77 | --refcnt (); |
87 | --refcnt (); |
| 78 | |
88 | |
| 79 | #if 0 |
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| 80 | // this optimises the important case of str == constant 0 |
89 | // this optimises the important case of str == constant 0 |
| 81 | if (is_constant (str)) |
90 | if (is_constant (str)) |
| 82 | s = str ? intern (str) : null; |
91 | s = str ? intern (str) : null; |
| 83 | else |
92 | else |
| 84 | #endif |
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| 85 | s = intern (str); |
93 | s = intern (str); |
| 86 | |
94 | |
| 87 | return *this; |
95 | return *this; |
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96 | } |
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97 | |
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98 | bool operator ==(const shstr &b) |
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99 | { |
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100 | return s == b.s; |
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101 | } |
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102 | |
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103 | bool operator !=(const shstr &b) |
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104 | { |
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105 | return !(*this == b); |
| 88 | } |
106 | } |
| 89 | }; |
107 | }; |
| 90 | |
108 | |
| 91 | inline int strlen (const shstr &sh) |
109 | inline int strlen (const shstr &sh) |
| 92 | { |
110 | { |
| 93 | return sh.length (); |
111 | return sh.length (); |
| 94 | } |
112 | } |
| 95 | |
113 | |
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114 | inline int strcmp (const shstr &a, const shstr &b) |
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115 | { |
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116 | // TODO: use this to find all the occurences of people using strcmp |
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117 | // all uses should be bogus, as we should be never interested in |
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118 | // comparing shstr's alphabetically |
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119 | #if 0 |
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120 | extern void do_not_use_strcmp_to_compare_shstr_values (); |
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121 | do_not_use_strcmp_to_compare_shstr_values (); |
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122 | #endif |
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123 | return a != b; |
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124 | } |
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125 | |
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126 | static std::ostream &operator <<(std::ostream &o, const shstr &sh) |
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127 | { |
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128 | o.write (sh.s, sh.length ()); |
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129 | return o; |
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130 | } |
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131 | |
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132 | // only good for mass comparisons to shstr objects |
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133 | struct shstr_cmp |
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134 | { |
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135 | const char *s; |
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136 | |
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137 | explicit shstr_cmp (const char *s) |
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138 | : s (shstr::find (s)) |
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139 | { |
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140 | } |
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141 | |
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142 | shstr_cmp (const shstr_cmp &sh) |
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143 | : s (sh.s) |
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144 | { |
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145 | } |
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146 | |
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147 | shstr_cmp &operator =(const shstr_cmp sh) { s = sh.s; return *this; } |
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148 | operator const char *() const { return s; } |
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149 | }; |
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150 | |
| 96 | inline bool operator ==(const shstr &a, const shstr &b) |
151 | inline bool operator ==(const shstr_cmp &a, const shstr &b) |
| 97 | { |
152 | { |
| 98 | return a.s == b.s; |
153 | return a.s == b.s; |
| 99 | } |
154 | } |
| 100 | |
155 | |
| 101 | inline bool operator !=(const shstr &a, const shstr &b) |
156 | inline bool operator ==(const shstr &a, const shstr_cmp &b) |
| 102 | { |
157 | { |
| 103 | return !(a == b); |
158 | return b == a; |
| 104 | } |
159 | } |
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160 | |
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161 | extern const shstr undead_name; /* Used in hit_player() in main.c */ |
| 105 | |
162 | |
| 106 | #endif |
163 | #endif |
| 107 | |
164 | |
