1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
|
#ifndef TMWA_MMO_EXTRACT_HPP
#define TMWA_MMO_EXTRACT_HPP
// extract.hpp - a simple, hierarchical, tokenizer
//
// Copyright © 2012-2013 Ben Longbons <b.r.longbons@gmail.com>
//
// This file is part of The Mana World (Athena server)
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
# include "../sanity.hpp"
# include <algorithm>
# include "../strings/xstring.hpp"
# include "../generic/const_array.hpp"
# include "mmo.hpp"
# include "utils.hpp"
template<class T, typename=typename std::enable_if<std::is_integral<T>::value && !std::is_same<T, char>::value && !std::is_same<T, bool>::value>::type>
bool extract(XString str, T *iv)
{
if (!str || str.size() > 20)
return false;
if (!((str.front() == '-' && std::is_signed<T>::value)
|| ('0' <= str.front() && str.front() <= '9')))
return false;
// needs a NUL, but can't always be given one. TODO VString?
char buf[20 + 1];
std::copy(str.begin(), str.end(), buf);
buf[str.size()] = '\0';
char *end;
errno = 0;
if (std::is_signed<T>::value)
{
long long v = strtoll(buf, &end, 10);
if (errno || *end)
return false;
*iv = v;
return *iv == v;
}
else
{
unsigned long long v = strtoull(buf, &end, 10);
if (errno || *end)
return false;
*iv = v;
return *iv == v;
}
}
inline
bool extract(XString str, TimeT *tv)
{
return extract(str, &tv->value);
}
// extra typename=void to workaround some duplicate overload rule
template<class T, typename=typename std::enable_if<std::is_enum<T>::value>::type, typename=void>
bool extract(XString str, T *iv)
{
typedef typename underlying_type<T>::type U;
U v;
// defer to integer version
if (!extract(str, &v))
return false;
// TODO check bounds using enum min/max as in SSCANF
*iv = static_cast<T>(v);
return true;
}
bool extract(XString str, XString *rv);
bool extract(XString str, AString *rv);
template<uint8_t N>
bool extract(XString str, VString<N> *out)
{
if (str.size() > N)
return false;
*out = str;
return true;
}
template<class T>
class LStripper
{
public:
T impl;
};
template<class T>
LStripper<T> lstripping(T v)
{
return {v};
}
template<class T>
bool extract(XString str, LStripper<T> out)
{
return extract(str.lstrip(), out.impl);
}
// basically just a std::tuple
// but it provides its data members publically
template<char split, int n, class... T>
class Record;
template<char split, int n>
class Record<split, n>
{
};
template<char split, int n, class F, class... R>
class Record<split, n, F, R...>
{
public:
F frist;
Record<split, n - 1, R...> rest;
public:
Record(F f, R... r)
: frist(f), rest(r...)
{}
};
template<char split, class... T>
Record<split, sizeof...(T), T...> record(T... t)
{
return Record<split, sizeof...(T), T...>(t...);
}
template<char split, int n, class... T>
Record<split, n, T...> record(T... t)
{
static_assert(0 < n && n < sizeof...(T), "don't be silly");
return Record<split, n, T...>(t...);
}
template<char split, int n>
bool extract(XString str, Record<split, n>)
{
return !str;
}
template<char split, int n, class F, class... R>
bool extract(XString str, Record<split, n, F, R...> rec)
{
XString::iterator s = std::find(str.begin(), str.end(), split);
XString::iterator s2 = s;
if (s2 != str.end())
++s2;
XString head = str.xislice_h(s);
XString tail = str.xislice_t(s2);
if (s == str.end())
return (extract(head, rec.frist) && n <= 1)
|| (!head && n <= 0);
return (extract(head, rec.frist) || n <= 0)
&& extract(tail, rec.rest);
}
template<char split, class T>
struct VRecord
{
std::vector<T> *arr;
};
template<char split, class T>
VRecord<split, T> vrec(std::vector<T> *arr)
{
return {arr};
}
template<char split, class T>
bool extract(XString str, VRecord<split, T> rec)
{
if (!str)
return true;
XString::iterator s = std::find(str.begin(), str.end(), split);
rec.arr->emplace_back();
if (s == str.end())
return extract(str, &rec.arr->back());
return extract(str.xislice_h(s), &rec.arr->back())
&& extract(str.xislice_t(s + 1), rec);
}
bool extract(XString str, struct global_reg *var);
bool extract(XString str, struct item *it);
inline
bool extract(XString str, MapName *m)
{
XString::iterator it = std::find(str.begin(), str.end(), '.');
str = str.xislice_h(it);
VString<15> tmp;
bool rv = extract(str, &tmp);
*m = tmp;
return rv;
}
inline
bool extract(XString str, CharName *out)
{
VString<23> tmp;
if (extract(str, &tmp))
{
*out = CharName(tmp);
return true;
}
return false;
}
#endif // TMWA_MMO_EXTRACT_HPP
|
