summaryrefslogtreecommitdiffstats
path: root/doc/src/snippets/qstring/main.cpp
diff options
context:
space:
mode:
authorJoona Petrell <joona.t.petrell@nokia.com>2011-02-22 04:12:05 (GMT)
committerJoona Petrell <joona.t.petrell@nokia.com>2011-02-22 04:12:05 (GMT)
commitbf9ca539dc4c5efff801856ad9d3f7e14dabad26 (patch)
treea5ae494b6e8a2b33f4345f484ba2ead04aca761e /doc/src/snippets/qstring/main.cpp
parentb254be20c03d4dbfc1803cd40dc95d52115b955c (diff)
parenta34e2ab6f50cc91a4fca5cd7fd7bd22e6495b0c1 (diff)
downloadQt-bf9ca539dc4c5efff801856ad9d3f7e14dabad26.zip
Qt-bf9ca539dc4c5efff801856ad9d3f7e14dabad26.tar.gz
Qt-bf9ca539dc4c5efff801856ad9d3f7e14dabad26.tar.bz2
Merge branch '4.7' of git://scm.dev.nokia.troll.no/qt/qt into 4.7
Conflicts: tools/qml/qml.pri
Diffstat (limited to 'doc/src/snippets/qstring/main.cpp')
-rw-r--r--doc/src/snippets/qstring/main.cpp382
1 files changed, 191 insertions, 191 deletions
diff --git a/doc/src/snippets/qstring/main.cpp b/doc/src/snippets/qstring/main.cpp
index 9aac79d..bbc9e98 100644
--- a/doc/src/snippets/qstring/main.cpp
+++ b/doc/src/snippets/qstring/main.cpp
@@ -126,22 +126,22 @@ Widget::Widget(QWidget *parent)
void Widget::constCharPointer()
{
-//! [0]
+ //! [0]
QString str = "Hello";
-//! [0]
+ //! [0]
}
void Widget::constCharArray()
{
-//! [1]
+ //! [1]
static const QChar data[4] = { 0x0055, 0x006e, 0x10e3, 0x03a3 };
QString str(data, 4);
-//! [1]
+ //! [1]
}
void Widget::characterReference()
{
-//! [2]
+ //! [2]
QString str;
str.resize(4);
@@ -149,46 +149,46 @@ void Widget::characterReference()
str[1] = QChar('n');
str[2] = QChar(0x10e3);
str[3] = QChar(0x03a3);
-//! [2]
+ //! [2]
}
void Widget::atFunction()
{
-//! [3]
+ //! [3]
QString str;
for (int i = 0; i < str.size(); ++i) {
if (str.at(i) >= QChar('a') && str.at(i) <= QChar('f'))
qDebug() << "Found character in range [a-f]";
}
-//! [3]
+ //! [3]
}
void Widget::stringLiteral()
{
-//! [4]
+ //! [4]
QString str;
if (str == "auto" || str == "extern"
|| str == "static" || str == "register") {
// ...
}
-//! [4]
+ //! [4]
}
void Widget::modify()
{
-//! [5]
+ //! [5]
QString str = "and";
str.prepend("rock "); // str == "rock and"
str.append(" roll"); // str == "rock and roll"
str.replace(5, 3, "&"); // str == "rock & roll"
-//! [5]
+ //! [5]
}
void Widget::index()
{
-//! [6]
+ //! [6]
QString str = "We must be <b>bold</b>, very <b>bold</b>";
int j = 0;
@@ -196,25 +196,25 @@ void Widget::index()
qDebug() << "Found <b> tag at index position" << j;
++j;
}
-//! [6]
+ //! [6]
}
//! [7]
- QString Widget::boolToString(bool b)
- {
- QString result;
- if (b)
- result = "True";
- else
- result = "False";
- return result;
- }
+QString Widget::boolToString(bool b)
+{
+ QString result;
+ if (b)
+ result = "True";
+ else
+ result = "False";
+ return result;
+}
//! [7]
void Widget::nullVsEmpty()
{
-//! [8]
+ //! [8]
QString().isNull(); // returns true
QString().isEmpty(); // returns true
@@ -223,45 +223,45 @@ void Widget::nullVsEmpty()
QString("abc").isNull(); // returns false
QString("abc").isEmpty(); // returns false
-//! [8]
+ //! [8]
}
void Widget::appendFunction()
{
-//! [9]
+ //! [9]
QString x = "free";
QString y = "dom";
x.append(y);
// x == "freedom"
-//! [9]
+ //! [9]
-//! [10]
+ //! [10]
x.insert(x.size(), y);
-//! [10]
+ //! [10]
}
void Widget::argFunction()
{
-//! [11]
+ //! [11]
QString i; // current file's number
QString total; // number of files to process
QString fileName; // current file's name
QString status = QString("Processing file %1 of %2: %3")
.arg(i).arg(total).arg(fileName);
-//! [11]
+ //! [11]
-//! [12] //! [13]
+ //! [12] //! [13]
QString str;
-//! [12]
+ //! [12]
str = "%1 %2";
str.arg("%1f", "Hello"); // returns "%1f Hello"
str.arg("%1f").arg("Hello"); // returns "Hellof %2"
-//! [13]
+ //! [13]
-//! [14]
+ //! [14]
str = QString("Decimal 63 is %1 in hexadecimal")
.arg(63, 0, 16);
// str == "Decimal 63 is 3f in hexadecimal"
@@ -272,16 +272,16 @@ void Widget::argFunction()
.arg(12345)
.arg(12345, 0, 16);
// str == "12345 12,345 3039"
-//! [14]
+ //! [14]
}
void Widget::chopFunction()
{
-//! [15]
+ //! [15]
QString str("LOGOUT\r\n");
str.chop(2);
// str == "LOGOUT"
-//! [15]
+ //! [15]
}
void Widget::compareFunction()
@@ -293,251 +293,251 @@ void Widget::compareFunction()
void Widget::compareSensitiveFunction()
{
-//! [16]
+ //! [16]
int x = QString::compare("aUtO", "AuTo", Qt::CaseInsensitive); // x == 0
int y = QString::compare("auto", "Car", Qt::CaseSensitive); // y > 0
int z = QString::compare("auto", "Car", Qt::CaseInsensitive); // z < 0
-//! [16]
+ //! [16]
}
void Widget::containsFunction()
{
-//! [17]
+ //! [17]
QString str = "Peter Pan";
str.contains("peter", Qt::CaseInsensitive); // returns true
-//! [17]
+ //! [17]
}
void Widget::countFunction()
{
-//! [18]
+ //! [18]
QString str = "banana and panama";
str.count(QRegExp("a[nm]a")); // returns 4
-//! [18]
+ //! [18]
}
void Widget::dataFunction()
{
-//! [19]
+ //! [19]
QString str = "Hello world";
QChar *data = str.data();
while (!data->isNull()) {
qDebug() << data->unicode();
++data;
}
-//! [19]
+ //! [19]
}
void Widget::endsWithFunction()
{
-//! [20]
+ //! [20]
QString str = "Bananas";
str.endsWith("anas"); // returns true
str.endsWith("pple"); // returns false
-//! [20]
+ //! [20]
}
void Widget::fillFunction()
{
-//! [21]
+ //! [21]
QString str = "Berlin";
str.fill('z');
// str == "zzzzzz"
str.fill('A', 2);
// str == "AA"
-//! [21]
+ //! [21]
}
void Widget::fromRawDataFunction()
{
-//! [22]
- QRegExp pattern;
- static const QChar unicode[] = {
- 0x005A, 0x007F, 0x00A4, 0x0060,
- 0x1009, 0x0020, 0x0020};
- int size = sizeof(unicode) / sizeof(QChar);
+ //! [22]
+ QRegExp pattern;
+ static const QChar unicode[] = {
+ 0x005A, 0x007F, 0x00A4, 0x0060,
+ 0x1009, 0x0020, 0x0020};
+ int size = sizeof(unicode) / sizeof(QChar);
- QString str = QString::fromRawData(unicode, size);
- if (str.contains(QRegExp(pattern))) {
- // ...
-//! [22] //! [23]
- }
-//! [23]
+ QString str = QString::fromRawData(unicode, size);
+ if (str.contains(QRegExp(pattern))) {
+ // ...
+ //! [22] //! [23]
+ }
+ //! [23]
}
void Widget::indexOfFunction()
{
-//! [24]
+ //! [24]
QString x = "sticky question";
QString y = "sti";
x.indexOf(y); // returns 0
x.indexOf(y, 1); // returns 10
x.indexOf(y, 10); // returns 10
x.indexOf(y, 11); // returns -1
-//! [24]
+ //! [24]
}
void Widget::firstIndexOfFunction()
{
-//! [25]
+ //! [25]
QString str = "the minimum";
str.indexOf(QRegExp("m[aeiou]"), 0); // returns 4
-//! [25]
+ //! [25]
}
void Widget::insertFunction()
{
-//! [26]
+ //! [26]
QString str = "Meal";
str.insert(1, QString("ontr"));
// str == "Montreal"
-//! [26]
+ //! [26]
}
void Widget::isEmptyFunction()
{
-//! [27]
+ //! [27]
QString().isEmpty(); // returns true
QString("").isEmpty(); // returns true
QString("x").isEmpty(); // returns false
QString("abc").isEmpty(); // returns false
-//! [27]
+ //! [27]
}
void Widget::isNullFunction()
{
-//! [28]
+ //! [28]
QString().isNull(); // returns true
QString("").isNull(); // returns false
QString("abc").isNull(); // returns false
-//! [28]
+ //! [28]
}
void Widget::lastIndexOfFunction()
{
-//! [29]
+ //! [29]
QString x = "crazy azimuths";
QString y = "az";
x.lastIndexOf(y); // returns 6
x.lastIndexOf(y, 6); // returns 6
x.lastIndexOf(y, 5); // returns 2
x.lastIndexOf(y, 1); // returns -1
-//! [29]
+ //! [29]
-//! [30]
+ //! [30]
QString str = "the minimum";
str.lastIndexOf(QRegExp("m[aeiou]")); // returns 8
-//! [30]
+ //! [30]
}
void Widget::leftFunction()
{
-//! [31]
+ //! [31]
QString x = "Pineapple";
QString y = x.left(4); // y == "Pine"
-//! [31]
+ //! [31]
}
void Widget::leftJustifiedFunction()
{
-//! [32]
+ //! [32]
QString s = "apple";
QString t = s.leftJustified(8, '.'); // t == "apple..."
-//! [32]
+ //! [32]
-//! [33]
+ //! [33]
QString str = "Pineapple";
str = str.leftJustified(5, '.', true); // str == "Pinea"
-//! [33]
+ //! [33]
}
void Widget::midFunction()
{
-//! [34]
+ //! [34]
QString x = "Nine pineapples";
QString y = x.mid(5, 4); // y == "pine"
QString z = x.mid(5); // z == "pineapples"
-//! [34]
+ //! [34]
}
void Widget::numberFunction()
{
-//! [35]
+ //! [35]
long a = 63;
QString s = QString::number(a, 16); // s == "3f"
QString t = QString::number(a, 16).toUpper(); // t == "3F"
-//! [35]
+ //! [35]
}
void Widget::prependFunction()
{
-//! [36]
+ //! [36]
QString x = "ship";
QString y = "air";
x.prepend(y);
// x == "airship"
-//! [36]
+ //! [36]
}
void Widget::removeFunction()
{
-//! [37]
+ //! [37]
QString s = "Montreal";
s.remove(1, 4);
// s == "Meal"
-//! [37]
+ //! [37]
-//! [38]
+ //! [38]
QString t = "Ali Baba";
t.remove(QChar('a'), Qt::CaseInsensitive);
// t == "li Bb"
-//! [38]
+ //! [38]
-//! [39]
+ //! [39]
QString r = "Telephone";
r.remove(QRegExp("[aeiou]."));
// r == "The"
-//! [39]
+ //! [39]
}
void Widget::replaceFunction()
{
-//! [40]
+ //! [40]
QString x = "Say yes!";
QString y = "no";
x.replace(4, 3, y);
// x == "Say no!"
-//! [40]
+ //! [40]
-//! [41]
+ //! [41]
QString str = "colour behaviour flavour neighbour";
str.replace(QString("ou"), QString("o"));
// str == "color behavior flavor neighbor"
-//! [41]
+ //! [41]
-//! [42]
+ //! [42]
QString s = "Banana";
s.replace(QRegExp("a[mn]"), "ox");
// s == "Boxoxa"
-//! [42]
+ //! [42]
-//! [43]
+ //! [43]
QString t = "A <i>bon mot</i>.";
t.replace(QRegExp("<i>([^<]*)</i>"), "\\emph{\\1}");
// t == "A \\emph{bon mot}."
-//! [43]
+ //! [43]
-//! [86]
+ //! [86]
QString equis = "xxxxxx";
equis.replace("xx", "x");
// equis == "xxx"
-//! [86]
+ //! [86]
}
void Widget::reserveFunction()
{
-//! [44]
+ //! [44]
QString result;
int maxSize;
bool condition;
@@ -549,59 +549,59 @@ void Widget::reserveFunction()
result.append(nextChar);
result.squeeze();
-//! [44]
+ //! [44]
}
void Widget::resizeFunction()
{
-//! [45]
+ //! [45]
QString s = "Hello world";
s.resize(5);
// s == "Hello"
s.resize(8);
// s == "Hello???" (where ? stands for any character)
-//! [45]
+ //! [45]
-//! [46]
+ //! [46]
QString t = "Hello";
t += QString(10, 'X');
// t == "HelloXXXXXXXXXX"
-//! [46]
+ //! [46]
-//! [47]
+ //! [47]
QString r = "Hello";
r = r.leftJustified(10, ' ');
// r == "Hello "
-//! [47]
+ //! [47]
}
void Widget::rightFunction()
{
-//! [48]
+ //! [48]
QString x = "Pineapple";
QString y = x.right(5); // y == "apple"
-//! [48]
+ //! [48]
}
void Widget::rightJustifiedFunction()
{
-//! [49]
+ //! [49]
QString s = "apple";
QString t = s.rightJustified(8, '.'); // t == "...apple"
-//! [49]
+ //! [49]
-//! [50]
+ //! [50]
QString str = "Pineapple";
str = str.rightJustified(5, '.', true); // str == "Pinea"
-//! [50]
+ //! [50]
}
void Widget::sectionFunction()
{
-//! [51] //! [52]
+ //! [51] //! [52]
QString str;
-//! [51]
+ //! [51]
QString csv = "forename,middlename,surname,phone";
QString path = "/usr/local/bin/myapp"; // First field is empty
QString::SectionFlag flag = QString::SectionSkipEmpty;
@@ -610,83 +610,83 @@ void Widget::sectionFunction()
str = csv.section(',', 2, 2); // str == "surname"
str = path.section('/', 3, 4); // str == "bin/myapp"
str = path.section('/', 3, 3, flag); // str == "myapp"
-//! [52]
+ //! [52]
-//! [53]
+ //! [53]
str = csv.section(',', -3, -2); // str == "middlename,surname"
str = path.section('/', -1); // str == "myapp"
-//! [53]
+ //! [53]
-//! [54]
+ //! [54]
QString data = "forename**middlename**surname**phone";
str = data.section("**", 2, 2); // str == "surname"
str = data.section("**", -3, -2); // str == "middlename**surname"
-//! [54]
+ //! [54]
-//! [55]
+ //! [55]
QString line = "forename\tmiddlename surname \t \t phone";
QRegExp sep("\\s+");
str = line.section(sep, 2, 2); // s == "surname"
str = line.section(sep, -3, -2); // s == "middlename surname"
-//! [55]
+ //! [55]
}
void Widget::setNumFunction()
{
-//! [56]
+ //! [56]
QString str;
str.setNum(1234); // str == "1234"
-//! [56]
+ //! [56]
}
void Widget::simplifiedFunction()
{
-//! [57]
+ //! [57]
QString str = " lots\t of\nwhitespace\r\n ";
str = str.simplified();
// str == "lots of whitespace";
-//! [57]
+ //! [57]
}
void Widget::sizeFunction()
{
-//! [58]
+ //! [58]
QString str = "World";
int n = str.size(); // n == 5
str.data()[0]; // returns 'W'
str.data()[4]; // returns 'd'
str.data()[5]; // returns '\0'
-//! [58]
+ //! [58]
}
void Widget::splitFunction()
{
-//! [59]
+ //! [59]
QString str;
QStringList list;
str = "Some text\n\twith strange whitespace.";
list = str.split(QRegExp("\\s+"));
// list: [ "Some", "text", "with", "strange", "whitespace." ]
-//! [59]
+ //! [59]
-//! [60]
+ //! [60]
str = "This time, a normal English sentence.";
list = str.split(QRegExp("\\W+"), QString::SkipEmptyParts);
// list: [ "This", "time", "a", "normal", "English", "sentence" ]
-//! [60]
+ //! [60]
-//! [61]
+ //! [61]
str = "Now: this sentence fragment.";
list = str.split(QRegExp("\\b"));
// list: [ "", "Now", ": ", "this", " ", "sentence", " ", "fragment", "." ]
-//! [61]
+ //! [61]
}
void Widget::splitCaseSensitiveFunction()
{
-//! [62]
+ //! [62]
QString str = "a,,b,c";
QStringList list1 = str.split(",");
@@ -694,241 +694,241 @@ void Widget::splitCaseSensitiveFunction()
QStringList list2 = str.split(",", QString::SkipEmptyParts);
// list2: [ "a", "b", "c" ]
-//! [62]
+ //! [62]
}
void Widget::sprintfFunction()
{
-//! [63]
+ //! [63]
size_t BufSize;
char buf[BufSize];
::snprintf(buf, BufSize, "%lld", 123456789LL);
QString str = QString::fromAscii(buf);
-//! [63]
+ //! [63]
-//! [64]
+ //! [64]
QString result;
QTextStream(&result) << "pi = " << 3.14;
// result == "pi = 3.14"
-//! [64]
+ //! [64]
}
void Widget::startsWithFunction()
{
-//! [65]
+ //! [65]
QString str = "Bananas";
str.startsWith("Ban"); // returns true
str.startsWith("Car"); // returns false
-//! [65]
+ //! [65]
}
void Widget::toDoubleFunction()
{
-//! [66]
+ //! [66]
QString str = "1234.56";
double val = str.toDouble(); // val == 1234.56
-//! [66]
+ //! [66]
-//! [67]
+ //! [67]
bool ok;
double d;
d = QString( "1234.56e-02" ).toDouble(&ok); // ok == true, d == 12.3456
-//! [67]
+ //! [67]
-//! [68] //! [69]
+ //! [68] //! [69]
QLocale::setDefault(QLocale::C);
d = QString( "1234,56" ).toDouble(&ok); // ok == false
-//! [68]
+ //! [68]
d = QString( "1234.56" ).toDouble(&ok); // ok == true, d == 1234.56
-//! [69] //! [70]
+ //! [69] //! [70]
QLocale::setDefault(QLocale::German);
d = QString( "1234,56" ).toDouble(&ok); // ok == true, d == 1234.56
d = QString( "1234.56" ).toDouble(&ok); // ok == true, d == 1234.56
-//! [70]
+ //! [70]
QLocale::setDefault(QLocale::C);
d = QString( "1,234,567.89" ).toDouble(&ok); // ok == false
}
void Widget::toFloatFunction()
{
-//! [71]
+ //! [71]
QString str1 = "1234.56";
str1.toFloat(); // returns 1234.56
bool ok;
QString str2 = "R2D2";
str2.toFloat(&ok); // returns 0.0, sets ok to false
-//! [71]
+ //! [71]
}
void Widget::toIntFunction()
{
-//! [72]
+ //! [72]
QString str = "FF";
bool ok;
int hex = str.toInt(&ok, 16); // hex == 255, ok == true
int dec = str.toInt(&ok, 10); // dec == 0, ok == false
-//! [72]
+ //! [72]
}
void Widget::toLongFunction()
{
-//! [73]
+ //! [73]
QString str = "FF";
bool ok;
long hex = str.toLong(&ok, 16); // hex == 255, ok == true
long dec = str.toLong(&ok, 10); // dec == 0, ok == false
-//! [73]
+ //! [73]
}
void Widget::toLongLongFunction()
{
-//! [74]
+ //! [74]
QString str = "FF";
bool ok;
qint64 hex = str.toLongLong(&ok, 16); // hex == 255, ok == true
qint64 dec = str.toLongLong(&ok, 10); // dec == 0, ok == false
-//! [74]
+ //! [74]
}
void Widget::toLowerFunction()
{
-//! [75]
+ //! [75]
QString str = "Qt by NOKIA";
str = str.toLower(); // str == "qt by nokia"
-//! [75]
+ //! [75]
}
void Widget::toShortFunction()
{
-//! [76]
+ //! [76]
QString str = "FF";
bool ok;
short hex = str.toShort(&ok, 16); // hex == 255, ok == true
short dec = str.toShort(&ok, 10); // dec == 0, ok == false
-//! [76]
+ //! [76]
}
void Widget::toUIntFunction()
{
-//! [77]
+ //! [77]
QString str = "FF";
bool ok;
uint hex = str.toUInt(&ok, 16); // hex == 255, ok == true
uint dec = str.toUInt(&ok, 10); // dec == 0, ok == false
-//! [77]
+ //! [77]
}
void Widget::toULongFunction()
{
-//! [78]
+ //! [78]
QString str = "FF";
bool ok;
ulong hex = str.toULong(&ok, 16); // hex == 255, ok == true
ulong dec = str.toULong(&ok, 10); // dec == 0, ok == false
-//! [78]
+ //! [78]
}
void Widget::toULongLongFunction()
{
-//! [79]
+ //! [79]
QString str = "FF";
bool ok;
quint64 hex = str.toULongLong(&ok, 16); // hex == 255, ok == true
quint64 dec = str.toULongLong(&ok, 10); // dec == 0, ok == false
-//! [79]
+ //! [79]
}
void Widget::toUShortFunction()
{
-//! [80]
+ //! [80]
QString str = "FF";
bool ok;
ushort hex = str.toUShort(&ok, 16); // hex == 255, ok == true
ushort dec = str.toUShort(&ok, 10); // dec == 0, ok == false
-//! [80]
+ //! [80]
}
void Widget::toUpperFunction()
{
-//! [81]
+ //! [81]
QString str = "TeXt";
str = str.toUpper(); // str == "TEXT"
-//! [81]
+ //! [81]
}
void Widget::trimmedFunction()
{
-//! [82]
+ //! [82]
QString str = " lots\t of\nwhitespace\r\n ";
str = str.trimmed();
// str == "lots\t of\nwhitespace"
-//! [82]
+ //! [82]
}
void Widget::truncateFunction()
{
-//! [83]
+ //! [83]
QString str = "Vladivostok";
str.truncate(4);
// str == "Vlad"
-//! [83]
+ //! [83]
}
void Widget::plusEqualOperator()
{
-//! [84]
+ //! [84]
QString x = "free";
QString y = "dom";
x += y;
// x == "freedom"
-//! [84]
+ //! [84]
}
void Widget::arrayOperator()
{
-//! [85]
+ //! [85]
QString str;
if (str[0] == QChar('?'))
str[0] = QChar('_');
-//! [85]
+ //! [85]
}
void Widget::midRefFunction()
{
-//! [midRef]
+ //! [midRef]
QString x = "Nine pineapples";
QStringRef y = x.midRef(5, 4); // y == "pine"
QStringRef z = x.midRef(5); // z == "pineapples"
-//! [midRef]
+ //! [midRef]
}
void Widget::leftRefFunction()
{
-//! [leftRef]
+ //! [leftRef]
QString x = "Pineapple";
QStringRef y = x.leftRef(4); // y == "Pine"
-//! [leftRef]
+ //! [leftRef]
}
void Widget::rightRefFunction()
{
-//! [rightRef]
+ //! [rightRef]
QString x = "Pineapple";
QStringRef y = x.rightRef(5); // y == "apple"
-//! [rightRef]
+ //! [rightRef]
}