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
|
#include "mbl_parse_colon_pairs_list.h"
//:
// \file
// \brief Parse list of string pairs separated by colons
// \author Tim Cootes
#include <mbl/mbl_exception.h>
#include <vsl/vsl_indent.h>
#include <vcl_sstream.h>
#include <vcl_cassert.h>
//: Parse list of string pairs separated by colons
// Expects format of data string to contain pairs of
// strings, with colons between items, eg
// \verbatim
// {
// item1_0 : item2_0
// item1_1 : item2_1
// item1_2 : item2_2
// }
// \endverbatim
// Throws a mbl_exception_parse_error if it fails.
void mbl_parse_colon_pairs_list(const vcl_string& data,
vcl_vector<vcl_string>& item1,
vcl_vector<vcl_string>& item2)
{
vcl_istringstream data_stream(data);
mbl_parse_colon_pairs_list(data_stream,item1,item2);
}
//: Parse list of string pairs separated by colons
// Expects format of data string to contain pairs of
// strings, with colons between items, eg
// \verbatim
// {
// item1_0 : item2_0
// item1_1 : item2_1
// item1_2 : item2_2
// }
// \endverbatim
// Throws a mbl_exception_parse_error if it fails.
void mbl_parse_colon_pairs_list(vcl_istream& is,
vcl_vector<vcl_string>& item1,
vcl_vector<vcl_string>& item2)
{
char c;
is >> vcl_ws>>c;
if (c!='{')
{
is.clear(vcl_ios::failbit); // Set error flag
vcl_string error_msg("Expecting '{' got: '");
error_msg+=c;
error_msg+="'";
throw (mbl_exception_parse_error(error_msg));
}
// Empty lists
item1.resize(0);
item2.resize(0);
vcl_string string1,string2;
while (!is.eof())
{
// Read first item
is >> string1;
if (string1=="}") continue;
item1.push_back(string1);
// Check there is a colon
is >> vcl_ws>>c;
if (c!=':')
{
is.clear(vcl_ios::failbit); // Set error flag
vcl_string error_msg("Expecting ':' after ");
error_msg+=string1;
error_msg+=" Got `";
error_msg+=c;
error_msg+="'";
throw (mbl_exception_parse_error(error_msg));
}
// Read second item
is >> string2;
if (string2=="}")
{
is.clear(vcl_ios::failbit); // Set error flag
vcl_string error_msg("Expecting a string after ");
error_msg+=string1;
error_msg+=" : Got `}`";
throw (mbl_exception_parse_error(error_msg));
}
item2.push_back(string2);
}
if (string1!="}")
{
vcl_string error_msg("Expected list to end with a }, not ");
error_msg+=string2;
is.clear(vcl_ios::failbit); // Set error flag
throw (mbl_exception_parse_error(error_msg));
}
}
//: Writes pairs to a stream, separated by colons
// Format of output
// \verbatim
// {
// item1[0] : item2[0]
// item1[1] : item2[1]
// }
// \endverbatim
void mbl_write_colon_pairs_list(vcl_ostream& os,
const vcl_vector<vcl_string>& item1,
const vcl_vector<vcl_string>& item2)
{
assert(item1.size()==item2.size());
os<<vsl_indent()<<'{'<<vcl_endl;
vsl_indent_inc(os);
for (unsigned i=0;i<item1.size();++i)
{
os<<vsl_indent()<<item1[i]<<" : "<<item2[i]<<vcl_endl;
}
vsl_indent_dec(os);
os<<'}'<<vcl_endl;
}
|
