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
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
|
#include "csvbuilder.h"
CSVBuilder::CSVBuilder(QIODevice* target)
: m_Out(target), m_Separator(','), m_LineBreak(BREAK_CRLF)
{
m_Out.setEncoding(QStringConverter::Encoding::Utf8);
m_QuoteMode[TYPE_INTEGER] = QUOTE_NEVER;
m_QuoteMode[TYPE_FLOAT] = QUOTE_NEVER;
m_QuoteMode[TYPE_STRING] = QUOTE_ONDEMAND;
}
CSVBuilder::~CSVBuilder() {}
void CSVBuilder::setFieldSeparator(char sep)
{
char oldSeparator = m_Separator;
m_Separator = sep;
try {
checkFields(m_Fields);
} catch (const CSVException&) {
m_Separator = oldSeparator;
throw;
}
}
void CSVBuilder::setLineBreak(CSVBuilder::ELineBreak lineBreak)
{
m_LineBreak = lineBreak;
}
void CSVBuilder::setEscapeMode(CSVBuilder::EFieldType type, CSVBuilder::EQuoteMode mode)
{
m_QuoteMode[type] = mode;
}
void CSVBuilder::setFields(const std::vector<std::pair<QString, EFieldType>>& fields)
{
std::vector<QString> fieldNames;
std::map<QString, EFieldType> fieldTypes;
for (auto iter = fields.begin(); iter != fields.end(); ++iter) {
fieldNames.push_back(iter->first);
fieldTypes[iter->first] = iter->second;
}
checkFields(fieldNames);
m_Fields = fieldNames;
m_FieldTypes = fieldTypes;
m_Defaults.clear();
m_RowBuffer.clear();
}
void CSVBuilder::checkValue(const QString& field, const QVariant& value)
{
auto typeIter = m_FieldTypes.find(field);
if (typeIter == m_FieldTypes.end()) {
throw CSVException(QObject::tr("invalid field name \"%1\"").arg(field));
}
switch (typeIter->second) {
case TYPE_INTEGER: {
if (!value.canConvert<int>()) {
throw CSVException(
QObject::tr("invalid type for \"%1\" (should be integer)").arg(field));
}
} break;
case TYPE_STRING: {
if (!value.canConvert<QString>()) {
throw CSVException(
QObject::tr("invalid type for \"%1\" (should be string)").arg(field));
}
} break;
case TYPE_FLOAT: {
if (!value.canConvert<float>()) {
throw CSVException(
QObject::tr("invalid type for \"%1\" (should be float)").arg(field));
}
} break;
}
}
void CSVBuilder::setDefault(const QString& field, const QVariant& value)
{
checkValue(field, value);
m_Defaults[field] = value;
}
void CSVBuilder::writeHeader()
{
if (m_Fields.size() == 0) {
throw CSVException(QObject::tr("no fields set up yet!"));
}
for (auto iter = m_Fields.begin(); iter != m_Fields.end(); ++iter) {
if (iter != m_Fields.begin()) {
m_Out << m_Separator;
}
m_Out << *iter;
}
m_Out << lineBreak();
m_Out.flush();
}
void CSVBuilder::setRowField(const QString& field, const QVariant& value)
{
checkValue(field, value);
m_RowBuffer[field] = value;
}
void CSVBuilder::writeData(const std::map<QString, QVariant>& data, bool check)
{
QString line;
QTextStream temp(&line);
for (auto iter = m_Fields.begin(); iter != m_Fields.end(); ++iter) {
if (iter != m_Fields.begin()) {
temp << separator();
}
QVariant val;
auto valIter = data.find(*iter);
if (valIter == data.end()) {
auto defaultIter = m_Defaults.find(*iter);
if (defaultIter == m_Defaults.end()) {
throw CSVException(QObject::tr("field not set \"%1\"").arg(*iter));
} else {
val = defaultIter->second;
}
} else {
val = valIter->second;
}
if (check) {
checkValue(*iter, val);
}
switch (m_FieldTypes[*iter]) {
case TYPE_INTEGER: {
quoteInsert(temp, val.toInt());
} break;
case TYPE_FLOAT: {
quoteInsert(temp, val.toFloat());
} break;
case TYPE_STRING: {
quoteInsert(temp, val.toString());
} break;
}
}
m_Out << line << lineBreak();
m_Out.flush();
}
void CSVBuilder::quoteInsert(QTextStream& stream, int value)
{
switch (m_QuoteMode[TYPE_INTEGER]) {
case QUOTE_NEVER:
case QUOTE_ONDEMAND: {
stream << value;
} break;
case QUOTE_ALWAYS: {
stream << "\"" << value << "\"";
} break;
}
}
void CSVBuilder::quoteInsert(QTextStream& stream, float value)
{
switch (m_QuoteMode[TYPE_FLOAT]) {
case QUOTE_NEVER:
case QUOTE_ONDEMAND: {
stream << value;
} break;
case QUOTE_ALWAYS: {
stream << "\"" << value << "\"";
} break;
}
}
void CSVBuilder::quoteInsert(QTextStream& stream, const QString& value)
{
switch (m_QuoteMode[TYPE_STRING]) {
case QUOTE_NEVER: {
stream << value;
} break;
case QUOTE_ONDEMAND: {
if (value.contains("[,\r\n]")) {
stream << "\"" << value.mid(0).replace("\"", "\"\"") << "\"";
} else {
stream << value;
}
} break;
case QUOTE_ALWAYS: {
stream << "\"" << value.mid(0).replace("\"", "\"\"") << "\"";
} break;
}
}
void CSVBuilder::writeRow()
{
writeData(m_RowBuffer, false); // data was tested on input
m_RowBuffer.clear();
}
void CSVBuilder::addRow(const std::map<QString, QVariant>& data)
{
writeData(data, true);
}
void CSVBuilder::checkFields(const std::vector<QString>& fields)
{
for (auto iter = fields.begin(); iter != fields.end(); ++iter) {
if (iter->contains(m_Separator) || iter->contains('\r') || iter->contains('\n') ||
iter->contains('"')) {
throw CSVException(QObject::tr("invalid character in field \"%1\"").arg(*iter));
}
if (iter->length() == 0) {
throw CSVException(QObject::tr("empty field name"));
}
}
}
/*
if(cell.contains(KDefaultEscapeChar) || cell.contains(KDefaultNewLine)
|| cell.contains(KDefaultDelimiter)) {
m_currentLine->append(cell.replace(KDefaultNewLine,
QString(KDefaultEscapeChar) + KDefaultEscapeChar)
.prepend(KDefaultEscapeChar)
.append(KDefaultEscapeChar));
} else {
m_currentLine->append(cell);
}*/
const char* CSVBuilder::lineBreak()
{
switch (m_LineBreak) {
case BREAK_CR:
return "\r";
case BREAK_CRLF:
return "\r\n";
case BREAK_LF:
return "\n";
default:
return "\n"; // default shouldn't be necessary
}
}
const char CSVBuilder::separator()
{
return m_Separator;
}
|
