Ini.hpp
3.04 KB
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
#pragma once
// Distributed under the LGPL v2.1 license. See accompanying
// file LICENSE or https://github.com/henryiii/CLI11 for details.
#include <fstream>
#include <string>
#include <iostream>
#include <algorithm>
#include "CLI/StringTools.hpp"
namespace CLI {
namespace detail {
inline std::string inijoin(std::vector<std::string> args) {
std::ostringstream s;
size_t start = 0;
for (const auto& arg : args) {
if(start++ > 0)
s << " ";
auto it = std::find_if(arg.begin(), arg.end(), [](char ch){ return std::isspace<char>(ch , std::locale());});
if(it == arg.end())
s << arg;
else if(arg.find("\"") == std::string::npos)
s << "\"" << arg << "\"";
else
s << "\'" << arg << "\'";
}
return s.str();
}
struct ini_ret_t {
/// This is the full name with dots
std::string fullname;
/// Listing of inputs
std::vector<std::string> inputs;
/// Current parent level
size_t level = 0;
/// Return parent or empty string, based on level
///
/// Level 0, a.b.c would return a
/// Level 1, a.b.c could return b
std::string parent () const {
std::vector<std::string> plist = detail::split(fullname, '.');
if(plist.size() > (level+1))
return plist[level];
else
return "";
}
/// Return name
std::string name () const {
std::vector<std::string> plist = detail::split(fullname, '.');
return plist.at(plist.size()-1);
}
};
/// Internal parsing function
std::vector<ini_ret_t> parse_ini(std::istream &input) {
std::string name, line;
std::string section = "default";
std::vector<ini_ret_t> output;
while(getline(input, line)) {
std::vector<std::string> items;
detail::trim(line);
size_t len = line.length();
if(len > 1 && line[0] == '[' && line[len-1] == ']') {
section = line.substr(1,len-2);
} else if (len > 0 && line[0] != ';') {
output.emplace_back();
ini_ret_t& out = output.back();
// Find = in string, split and recombine
auto pos = line.find("=");
if(pos != std::string::npos) {
name = detail::trim_copy(line.substr(0,pos));
std::string item = detail::trim_copy(line.substr(pos+1));
items = detail::split_up(item);
} else {
name = detail::trim_copy(line);
items = {"ON"};
}
if(detail::to_lower(section) == "default")
out.fullname = name;
else
out.fullname = section + "." + name;
out.inputs.insert(std::end(out.inputs), std::begin(items), std::end(items));
}
}
return output;
}
/// Parse an INI file, throw an error (ParseError:INIParseError or FileError) on failure
std::vector<ini_ret_t> parse_ini(const std::string &name) {
std::ifstream input{name};
if(!input.good())
throw FileError(name);
return parse_ini(input);
}
}
}