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
|
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Language" content="en-us">
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="GENERATOR" content="Microsoft FrontPage 6.0">
<meta name="ProgId" content="FrontPage.Editor.Document">
<title>Boost Token Iterator</title>
</head>
<body bgcolor="#FFFFFF" text="#000000" link="#0000EE" vlink="#551A8B" alink=
"#FF0000">
<p><img src="../../boost.png" alt="C++ Boost" width="277" height=
"86"><br></p>
<h1 align="center">Token Iterator</h1>
<pre>
template <
class TokenizerFunc = char_delimiters_separator<char>,
class Iterator = std::string::const_iterator,
class Type = std::string
>
class token_iterator_generator
</pre>
<pre>
template<class Type, class Iterator, class TokenizerFunc>
typename token_iterator_generator<TokenizerFunc,Iterator,Type>::type
make_token_iterator(Iterator begin, Iterator end,const TokenizerFunc& fun)
</pre>
<p>The token iterator serves to provide an iterator view of the tokens in a
parsed sequence.</p>
<h2>Example</h2>
<pre>
/// simple_example_5.cpp
#include<iostream>
#include<boost/token_iterator.hpp>
#include<string>
int main(){
using namespace std;
using namespace boost;
string s = "12252001";
int offsets[] = {2,2,4};
offset_separator f(offsets, offsets+3);
typedef token_iterator_generator<offset_separator>::type Iter;
Iter beg = make_token_iterator<string>(s.begin(),s.end(),f);
Iter end = make_token_iterator<string>(s.end(),s.end(),f);
// The above statement could also have been what is below
// Iter end;
for(;beg!=end;++beg){
cout << *beg << "\n";
}
}
</pre>
<p> </p>
<h3>Template Parameters</h3>
<table border="1" summary="">
<tr>
<th>Parameter</th>
<th>Description</th>
</tr>
<tr>
<td><tt>TokenizerFunc</tt></td>
<td>The TokenizerFunction used to parse the sequence.</td>
</tr>
<tr>
<td><tt>Iterator</tt></td>
<td>The type of the iterator the specifies the sequence.</td>
</tr>
<tr>
<td><tt>Type</tt></td>
<td>The type of the token, typically string.</td>
</tr>
</table>
<h2>Model of</h2>
<p>The category of Iterator, up to and including Forward Iterator. Anything
higher will get scaled down to Forward Iterator.</p>
<h2>Related Types</h2>
<table border="1" summary="">
<tr>
<td>
<p align="center"><strong>Type</strong></p>
</td>
<td>
<p align="center"><strong>Remarks</strong></p>
</td>
</tr>
<tr>
<td>token_iterator_generator::type</td>
<td>The type of the token iterator.</td>
</tr>
</table>
<h2>Creation</h2>
<pre>
template<class Type, class Iterator, class TokenizerFunc>
typename token_iterator_generator<TokenizerFunc,Iterator,Type>::type
make_token_iterator(Iterator begin, Iterator end,const TokenizerFunc& fun)
</pre>
<table border="1" summary="">
<tr>
<td>
<p align="center"><strong>Parameter</strong></p>
</td>
<td>
<p align="center"><strong>Description</strong></p>
</td>
</tr>
<tr>
<td>begin</td>
<td>The beginning of the sequence to be parsed.</td>
</tr>
<tr>
<td>end</td>
<td>Past the end of the sequence to be parsed.</td>
</tr>
<tr>
<td>fun</td>
<td>A functor that is a model of TokenizerFunction</td>
</tr>
</table>
<p> </p>
<hr>
<p><a href="http://validator.w3.org/check?uri=referer"><img border="0" src=
"http://www.w3.org/Icons/valid-html401" alt="Valid HTML 4.01 Transitional"
height="31" width="88"></a></p>
<p>Revised
<!--webbot bot="Timestamp" s-type="EDITED" s-format="%d %B, %Y" startspan -->25
December, 2006<!--webbot bot="Timestamp" endspan i-checksum="38518" --></p>
<p><i>Copyright © 2001 John R. Bandela</i></p>
<p><i>Distributed under the Boost Software License, Version 1.0. (See
accompanying file <a href="../../LICENSE_1_0.txt">LICENSE_1_0.txt</a> or
copy at <a href=
"http://www.boost.org/LICENSE_1_0.txt">http://www.boost.org/LICENSE_1_0.txt</a>)</i></p>
</body>
</html>
|
