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1 | /* |
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2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
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3 | * |
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4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
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5 | * |
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6 | * Crossfire TRT is free software: you can redistribute it and/or modify |
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7 | * it under the terms of the GNU General Public License as published by |
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8 | * the Free Software Foundation, either version 3 of the License, or |
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9 | * (at your option) any later version. |
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10 | * |
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11 | * This program is distributed in the hope that it will be useful, |
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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14 | * GNU General Public License for more details. |
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15 | * |
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16 | * You should have received a copy of the GNU General Public License |
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17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
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18 | * |
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19 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
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20 | */ |
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21 | |
| 1 | #ifndef SHSTR_H__ |
22 | #ifndef SHSTR_H__ |
| 2 | #define SHSTR_H__ |
23 | #define SHSTR_H__ |
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24 | |
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25 | #include <sstream> |
| 3 | |
26 | |
| 4 | #include "util.h" |
27 | #include "util.h" |
| 5 | |
28 | |
| 6 | extern int buf_overflow (const char *buf1, const char *buf2, int bufsize); |
29 | extern int buf_overflow (const char *buf1, const char *buf2, int bufsize); |
| 7 | |
30 | |
| … | |
… | |
| 27 | } |
50 | } |
| 28 | |
51 | |
| 29 | int length () const |
52 | int length () const |
| 30 | { |
53 | { |
| 31 | return length (s); |
54 | return length (s); |
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55 | } |
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56 | |
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57 | // returns wether this shared string begins with the given prefix, |
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58 | // used mainly for searched when users give only the start of a name. |
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59 | bool begins_with (const char *prefix) const |
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60 | { |
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61 | int plen = strlen (prefix); |
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62 | return !strncasecmp (s, prefix, plen) && length () >= plen; |
| 32 | } |
63 | } |
| 33 | |
64 | |
| 34 | static const char *find (const char *s); |
65 | static const char *find (const char *s); |
| 35 | static const char *intern (const char *s); |
66 | static const char *intern (const char *s); |
| 36 | |
67 | |
| … | |
… | |
| 74 | |
105 | |
| 75 | const shstr &operator =(const char *str) |
106 | const shstr &operator =(const char *str) |
| 76 | { |
107 | { |
| 77 | --refcnt (); |
108 | --refcnt (); |
| 78 | |
109 | |
| 79 | #if 0 |
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| 80 | // this optimises the important case of str == constant 0 |
110 | // this optimises the important case of str == constant 0 |
| 81 | if (is_constant (str)) |
111 | if (is_constant (str)) |
| 82 | s = str ? intern (str) : null; |
112 | s = str ? intern (str) : null; |
| 83 | else |
113 | else |
| 84 | #endif |
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| 85 | s = intern (str); |
114 | s = intern (str); |
| 86 | |
115 | |
| 87 | return *this; |
116 | return *this; |
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117 | } |
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118 | |
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119 | bool operator ==(const shstr &b) |
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120 | { |
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121 | return s == b.s; |
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122 | } |
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123 | |
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124 | bool operator !=(const shstr &b) |
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125 | { |
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126 | return !(*this == b); |
| 88 | } |
127 | } |
| 89 | }; |
128 | }; |
| 90 | |
129 | |
| 91 | inline int strlen (const shstr &sh) |
130 | inline int strlen (const shstr &sh) |
| 92 | { |
131 | { |
| 93 | return sh.length (); |
132 | return sh.length (); |
| 94 | } |
133 | } |
| 95 | |
134 | |
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135 | inline int strcmp (const shstr &a, const shstr &b) |
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136 | { |
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137 | // TODO: use this to find all the occurences of people using strcmp |
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138 | // all uses should be bogus, as we should be never interested in |
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139 | // comparing shstr's alphabetically |
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140 | #if 0 |
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141 | extern void do_not_use_strcmp_to_compare_shstr_values (); |
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142 | do_not_use_strcmp_to_compare_shstr_values (); |
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143 | #endif |
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144 | return a != b; |
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145 | } |
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146 | |
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147 | static std::ostream &operator <<(std::ostream &o, const shstr &sh) |
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148 | { |
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149 | o.write (sh.s, sh.length ()); |
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150 | return o; |
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151 | } |
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152 | |
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153 | // only good for mass comparisons to shstr objects |
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154 | struct shstr_cmp |
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155 | { |
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156 | const char *s; |
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157 | |
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158 | explicit shstr_cmp (const char *s) |
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159 | : s (shstr::find (s)) |
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160 | { |
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161 | } |
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162 | |
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163 | shstr_cmp (const shstr_cmp &sh) |
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164 | : s (sh.s) |
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165 | { |
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166 | } |
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167 | |
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168 | shstr_cmp &operator =(const shstr_cmp sh) { s = sh.s; return *this; } |
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169 | operator const char *() const { return s; } |
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170 | }; |
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171 | |
| 96 | inline bool operator ==(const shstr &a, const shstr &b) |
172 | inline bool operator ==(const shstr_cmp &a, const shstr &b) |
| 97 | { |
173 | { |
| 98 | return a.s == b.s; |
174 | return a.s == b.s; |
| 99 | } |
175 | } |
| 100 | |
176 | |
| 101 | inline bool operator !=(const shstr &a, const shstr &b) |
177 | inline bool operator ==(const shstr &a, const shstr_cmp &b) |
| 102 | { |
178 | { |
| 103 | return !(a == b); |
179 | return b == a; |
| 104 | } |
180 | } |
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181 | |
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182 | #define def(str) extern const shstr shstr_ ## str; |
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183 | # include "shstrinc.h" |
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184 | #undef def |
| 105 | |
185 | |
| 106 | #endif |
186 | #endif |
| 107 | |
187 | |
