libzypp: zypp-core/parser/json/JsonString.h Source File

libzypp 17.38.15

JsonString.h
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1/*---------------------------------------------------------------------\
2| ____ _ __ __ ___ |
3| |__ / \ / / . \ . \ |
4| / / \ V /| _/ _/ |
5| / /__ | | | | | | |
6| /_____||_| |_| |_| |
7| |
8\---------------------------------------------------------------------*/
9#ifndef ZYPP_CORE_PARSER_JSON_JSON_STRING_DEFINED
10#define ZYPP_CORE_PARSER_JSON_JSON_STRING_DEFINED
11
12#include <string>
13#include <ostream>
14
15#include <zypp-core/Globals.h>
16
17namespace zypp::json {
18
19 namespace detail
20 {
21 inline std::string strEncode( std::string val_r )
22 {
23 typedef unsigned char uchar;
24
25 std::string::size_type add = 2; // enclosing "s
26 for( const auto &r : val_r )
27 {
28 if ( uchar(r) < 32u )
29 {
30 switch ( r )
31 {
32 case '\b':
33 case '\f':
34 case '\n':
35 case '\r':
36 case '\t':
37 add += 1; // "\c"
38 break;
39 default:
40 add += 5; // "\uXXXX"
41 break;
42 }
43 }
44 else
45 {
46 switch ( r )
47 {
48 case '"':
49 case '/':
50 case '\\':
51 add += 1; // \-escape
52 break;
53 }
54 }
55 }
56
57 val_r.resize( val_r.size() + add, '@' );
58 auto w( val_r.rbegin() );
59 auto r( w + add );
60
61 *w++ = '"';
62 for ( ; r != val_r.rend(); ++r )
63 {
64 if ( uchar(*r) < 32u )
65 {
66 static const char * digit = "0123456789abcdef";
67 switch ( *r )
68 {
69 case '\b': // "\c"
70 *w++ = 'b';
71 *w++ = '\\';
72 break;
73 case '\f': // "\c"
74 *w++ = 'f';
75 *w++ = '\\';
76 break;
77 case '\n': // "\c"
78 *w++ = 'n';
79 *w++ = '\\';
80 break;
81 case '\r': // "\c"
82 *w++ = 'r';
83 *w++ = '\\';
84 break;
85 case '\t': // "\c"
86 *w++ = 't';
87 *w++ = '\\';
88 break;
89 default: // "\uXXXX"
90 *w++ = digit[uchar(*r) % 15];
91 *w++ = digit[uchar(*r) / 16];
92 *w++ = '0';
93 *w++ = '0';
94 *w++ = 'u';
95 *w++ = '\\';
96 break;
97 }
98 }
99 else
100 {
101 switch ( (*w++ = *r) )
102 {
103 case '"':
104 case '/':
105 case '\\': // \-escape
106 *w++ = '\\';
107 break;
108 }
109 }
110 }
111 *w++ = '"';
112 return val_r;
113 }
114 } // namespace detail
115
116 class ZYPP_API String {
117
118 public:
119 String() = default; //default false
120 ~String() = default;
121
122 String( const std::string &val ) : _value(val) { }
123 String( std::string &&val ) : _value( std::move(val) ) { }
124
125 String( std::nullptr_t ) : _value( "" ) {}
126
127 String( const char * val_r ) : _value( val_r ? val_r : "" ) {}
128
129 String( const String & ) = default;
130 String( String && ) = default;
131 String &operator=(const String &) = default;
132 String &operator=(String &&) = default;
133
134 String &operator=(const std::string &set ) {
135 _value = set;
136 return *this;
137 }
138
139 operator std::string() const {
140 return _value;
141 }
142
144 std::string asJSON() const
145 { return detail::strEncode(_value); }
146
148 std::ostream & dumpOn( std::ostream & str ) const
149 { return str << asJSON(); }
150
151 bool operator< ( const String &other ) const {
152 return _value < other._value;
153 }
154
155 friend bool operator== ( const String &lhs, const String &rhs ) {
156 return lhs._value == rhs._value;
157 }
158
159 private:
160 std::string _value;
161
162 };
163
165 inline ZYPP_API std::ostream & operator<<( std::ostream & str, const String & obj )
166 {
167 return obj.dumpOn( str );
168 }
169
170}
171#endif
Globals.h
Provides API related macros.
zypp::json::String
Definition JsonString.h:116
zypp::json::String::String
String(std::string &&val)
Definition JsonString.h:123
zypp::json::String::String
String(const std::string &val)
Definition JsonString.h:122
zypp::json::String::String
String(String &&)=default
zypp::json::String::String
String(std::nullptr_t)
Definition JsonString.h:125
zypp::json::String::operator=
String & operator=(const std::string &set)
Definition JsonString.h:134
zypp::json::String::String
String(const char *val_r)
Definition JsonString.h:127
zypp::json::String::~String
~String()=default
zypp::json::String::operator=
String & operator=(const String &)=default
zypp::json::String::_value
std::string _value
Definition JsonString.h:160
zypp::json::String::operator=
String & operator=(String &&)=default
zypp::json::String::asJSON
std::string asJSON() const
JSON representation.
Definition JsonString.h:144
zypp::json::String::String
String(const String &)=default
zypp::json::String::String
String()=default
zypp::json::String::dumpOn
std::ostream & dumpOn(std::ostream &str) const
Stream output.
Definition JsonString.h:148
std
Definition ansi.h:855
str
String related utilities and Regular expression matching.
zypp::json::detail
Definition JsonString.h:20
zypp::json::detail::strEncode
std::string strEncode(std::string val_r)
Definition JsonString.h:21
zypp::json
Definition TargetImpl.cc:153
zypp::json::operator<<
ZYPP_API std::ostream & operator<<(std::ostream &str, const Bool &obj)
relates: Bool Stream output
Definition JsonBool.h:59
zypp::ZYPP_API
const Arch Arch_empty ZYPP_API
relates: Arch This is an empty Arch represented by an empty string.
Definition Arch.h:173