cpp_introduction/Cpp_Introduction/Exercises/STL_PhoneBook/PhoneBookVector.cpp at master · pelocpp/cpp_introduction · GitHub

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
// ===============================================================================
// PhoneBookVector.h
// ===============================================================================

#include "PhoneBookVector.h"

#include <algorithm>
#include <iomanip>
#include <iostream>
#include <numeric>
#include <sstream>

namespace PhoneBook
{
    // getter
    std::size_t PhoneBookVector::size() const
    {
        return m_entries.size();
    }

    // public interface
    bool PhoneBookVector::insert(const std::string& first, const std::string& last, std::size_t number)
    {
        if (contains(first, last)) {
            return false;
        }

        Entry entry(first, last, number);
        m_entries.push_back(entry);

        return true;
    }

    bool PhoneBookVector::update(const std::string& first, const std::string& last, std::size_t number)
    {
        MatchName name(first, last);

        std::vector<Entry>::iterator pos = std::find_if(
            m_entries.begin(),
            m_entries.end(),
            name
        );

        if (pos == m_entries.end()) {
            return false;
        }
        else {
            (*pos).m_number = number;
            return true;
        }

        return true;
    }

    bool PhoneBookVector::search(const std::string& first, const std::string& last, std::size_t& number) const
    {
        MatchName name(first, last);

        std::vector<Entry>::const_iterator pos = std::find_if(
            m_entries.begin(),
            m_entries.end(),
            name
        );

        if (pos == m_entries.end()) {
            return false;
        }
        else {
            const Entry& result = *pos;
            number = result.m_number;
            return true;
        }
    }

    bool PhoneBookVector::contains(const std::string& first, const std::string& last) const
    {
        MatchName name(first, last);

        std::vector<Entry>::const_iterator pos = std::find_if(
            m_entries.begin(),
            m_entries.end(),
            name
        );

        return pos != m_entries.end();
    }

    bool PhoneBookVector::remove(const std::string& first, const std::string& last)
    {
        MatchName name(first, last);

        std::vector<Entry>::iterator pos = std::find_if(
            m_entries.begin(),
            m_entries.end(),
            name
        );

        if (pos == m_entries.end()) {
            return false;
        }
        else {
            m_entries.erase(pos);
            return true;
        }
    }

    // ---------------------------------------------------------------------------

    std::string PhoneBookVector::entryToString(const Entry& entry)
    {
        return entry.m_first + " " + entry.m_last;
    }

    std::forward_list<std::string> PhoneBookVector::getNames() const
    {
        std::forward_list<std::string> list;

        std::transform(
            m_entries.begin(),
            m_entries.end(),
            std::front_insert_iterator<std::forward_list<std::string>>(list),
            entryToString
        );

        return list;
    }

    // ---------------------------------------------------------------------------

    std::string PhoneBookVector::append(const std::string& first, const Entry& next)
    {
        static int counter = 0;
        counter++;

        std::string name = next.m_first + " " + next.m_last;

        std::ostringstream ss;
        ss << std::setfill('0') << std::setw(2) << counter
           << ": " << std::setfill(' ') << std::setw(16) << std::left << name << " Phone: "
           << next.m_number << std::endl;

        return first + ss.str();
    }

    std::string PhoneBookVector::toString() const {

        std::string s = std::accumulate(
            m_entries.begin(),
            m_entries.end(),
            std::string(),
            append
        );

        return s;
    };

    // ---------------------------------------------------------------------------

    void PhoneBookVector::printEntry(const Entry& entry)
    {
        std::cout << entry.m_first << " " << entry.m_last << ": " << entry.m_number << std::endl;
    }

    void PhoneBookVector::print() const
    {
        std::for_each(
            m_entries.begin(),
            m_entries.end(),
            printEntry
        );
    }
}

// ===============================================================================
// End-of-File
// ===============================================================================