aboutsummaryrefslogtreecommitdiffstats
path: root/doc/codesnippets/doc/src/snippets/qstring/main.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'doc/codesnippets/doc/src/snippets/qstring/main.cpp')
-rw-r--r--doc/codesnippets/doc/src/snippets/qstring/main.cpp917
1 files changed, 0 insertions, 917 deletions
diff --git a/doc/codesnippets/doc/src/snippets/qstring/main.cpp b/doc/codesnippets/doc/src/snippets/qstring/main.cpp
deleted file mode 100644
index e41cf3ea3..000000000
--- a/doc/codesnippets/doc/src/snippets/qstring/main.cpp
+++ /dev/null
@@ -1,917 +0,0 @@
-/****************************************************************************
-**
-** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Nokia Corporation (qt-info@nokia.com)
-**
-** This file is part of the documentation of the Qt Toolkit.
-**
-** $QT_BEGIN_LICENSE:LGPL$
-** Commercial Usage
-** Licensees holding valid Qt Commercial licenses may use this file in
-** accordance with the Qt Commercial License Agreement provided with the
-** Software or, alternatively, in accordance with the terms contained in
-** a written agreement between you and Nokia.
-**
-** GNU Lesser General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU Lesser
-** General Public License version 2.1 as published by the Free Software
-** Foundation and appearing in the file LICENSE.LGPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU Lesser General Public License version 2.1 requirements
-** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
-**
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
-**
-** GNU General Public License Usage
-** Alternatively, this file may be used under the terms of the GNU
-** General Public License version 3.0 as published by the Free Software
-** Foundation and appearing in the file LICENSE.GPL included in the
-** packaging of this file. Please review the following information to
-** ensure the GNU General Public License version 3.0 requirements will be
-** met: http://www.gnu.org/copyleft/gpl.html.
-**
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at http://www.qtsoftware.com/contact.
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-#include <QtGui>
-#include <QApplication>
-#include <stdio.h>
-
-class Widget : public QWidget
-{
-public:
- Widget(QWidget *parent = 0)
-
- void constCharPointer()
- void constCharArray()
- void characterReference()
- void atFunction()
- void stringLiteral()
- void modify()
- void index()
- QString boolToString(bool b)
- void nullVsEmpty()
-
- void appendFunction()
- void argFunction()
- void chopFunction()
- void compareFunction()
- void compareSensitiveFunction()
- void containsFunction()
- void countFunction()
- void dataFunction()
- void endsWithFunction()
- void fillFunction()
- void fromRawDataFunction()
-
- void indexOfFunction()
- void firstIndexOfFunction()
- void insertFunction()
- void isNullFunction()
- void isEmptyFunction()
- void lastIndexOfFunction()
- void leftFunction()
- void leftJustifiedFunction()
- void leftRefFunction()
- void midFunction()
- void midRefFunction()
- void numberFunction()
-
- void prependFunction()
- void removeFunction()
- void replaceFunction()
- void reserveFunction()
- void resizeFunction()
- void rightFunction()
- void rightJustifiedFunction()
- void rightRefFunction()
- void sectionFunction()
- void setNumFunction()
- void simplifiedFunction()
-
- void sizeFunction()
- void splitFunction()
- void splitCaseSensitiveFunction()
- void sprintfFunction()
- void startsWithFunction()
- void toDoubleFunction()
- void toFloatFunction()
- void toIntFunction()
- void toLongFunction()
- void toLongLongFunction()
-
- void toLowerFunction()
- void toShortFunction()
- void toUIntFunction()
- void toULongFunction()
- void toULongLongFunction()
- void toUShortFunction()
- void toUpperFunction()
- void trimmedFunction()
- void truncateFunction()
-
- void plusEqualOperator()
- void arrayOperator()
-}
-
-Widget.Widget(QWidget *parent)
- : QWidget(parent)
-{
-}
-
-void Widget.constCharPointer()
-{
-//! [0]
- str = QString("Hello")
-//! [0]
-}
-
-void Widget.constCharArray()
-{
-//! [1]
- # NOT USED IN PYSIDE
- static const QChar data[4] = { 0x0055, 0x006e, 0x10e3, 0x03a3 }
- QString str(data, 4)
-//! [1]
-}
-
-void Widget.characterReference()
-{
-//! [2]
- str = QString()
- str.resize(2)
-
- str[0] = 'U')
- str[1] = 'n')
-//! [2]
-}
-
-void Widget.atFunction()
-{
-//! [3]
- str = QString()
-
- for i in range(str.size()):
- print str.at(i)
-//! [3]
-}
-
-void Widget.stringLiteral()
-{
-//! [4]
- str = QString()
- ...
- if str == "auto" or str == "extern" \
- or str == "static" or str == "register":
- # ...
-//! [4]
-}
-
-void Widget.modify()
-{
-//! [5]
- str = QString("and")
- str.prepend("rock ") # str == "rock and"
- str.append(" roll") # str == "rock and roll"
- str.replace(5, 3, "&") # str == "rock & roll"
-//! [5]
-}
-
-void Widget.index()
-{
-//! [6]
- str = QString("We must be <b>bold</b>, very <b>bold</b>")
- j = str.indexOf("<b>", 0)
- while j != -1:
- print "Found <b> tag at index position", j
- j = str.indexOf("<b>", j+1)
-//! [6]
-}
-
-//! [7]
- # Not needed in pyside
- QString Widget.boolToString(bool b)
- {
- QString result
- if (b)
- result = "True"
- else
- result = "False"
- return result
- }
-//! [7]
-
-
-void Widget.nullVsEmpty()
-{
-//! [8]
- QString().isNull() # returns true
- QString().isEmpty() # returns true
-
- QString("").isNull() # returns false
- QString("").isEmpty() # returns true
-
- QString("abc").isNull() # returns false
- QString("abc").isEmpty() # returns false
-//! [8]
-}
-
-void Widget.appendFunction()
-{
-//! [9]
- x = QString("free")
- y = QString("dom")
-
- x.append(y)
- # x == "freedom"
-//! [9]
-
-//! [10]
- x.insert(x.size(), y)
-//! [10]
-}
-
-void Widget.argFunction()
-{
-//! [11]
- i = QString(...) # current file's number
- total = QString(...) # number of files to process
- fileName = QString(...) # current file's name
-
- status = QString("Processing file %1 of %2: %3")
- .arg(i).arg(total).arg(fileName)
-//! [11]
-
-//! [12] //! [13]
- str QString()
-//! [12]
- str = QString("%1 %2")
-
- str.arg("%1f", "Hello") # returns "%1f Hello"
- str.arg("%1f").arg("Hello") # returns "Hellof %2"
-//! [13]
-
-//! [14]
- str = QString("Decimal 63 is %1 in hexadecimal")
- .arg(63, 0, 16)
- # str == "Decimal 63 is 3f in hexadecimal"
-
- QLocale.setDefault(QLocale(QLocale.English, QLocale.UnitedStates))
- str = QString("%1 %L2 %L3")
- .arg(12345)
- .arg(12345)
- .arg(12345, 0, 16)
- # str == "12345 12,345 3039"
-//! [14]
-}
-
-void Widget.chopFunction()
-{
-//! [15]
- str = QString("LOGOUT\r\n")
- str.chop(2)
- # str == "LOGOUT"
-//! [15]
-}
-
-void Widget.compareFunction()
-{
- x = QString.compare("auto", "auto") # x == 0
- y = QString.compare("auto", "car") # y < 0
- z = QString.compare("car", "auto") # z > 0
-}
-
-void Widget.compareSensitiveFunction()
-{
-//! [16]
- x = QString.compare("aUtO", "AuTo", Qt.CaseInsensitive); # x == 0
- y = QString.compare("auto", "Car", Qt.CaseSensitive); # y > 0
- z = QString.compare("auto", "Car", Qt.CaseInsensitive); # z < 0
-//! [16]
-}
-
-void Widget.containsFunction()
-{
-//! [17]
- str = QString("Peter Pan")
- str.contains("peter", Qt.CaseInsensitive) # returns true
-//! [17]
-}
-
-void Widget.countFunction()
-{
-//! [18]
- str = QString("banana and panama")
- str.count(QRegExp("a[nm]a")) # returns 4
-//! [18]
-}
-
-void Widget.dataFunction()
-{
-//! [19]
-// Not Needed
- str = QString"Hello world"
- QChar *data = str.data()
- while (!data->isNull()) {
- qDebug() << data->unicode()
- ++data
- }
-//! [19]
-}
-
-void Widget.endsWithFunction()
-{
-//! [20]
- str = QString("Bananas")
- str.endsWith("anas") # returns true
- str.endsWith("pple") # returns false
-//! [20]
-}
-
-void Widget.fillFunction()
-{
-//! [21]
- str = QString("Berlin")
- str.fill('z')
- # str == "zzzzzz"
-
- str.fill('A', 2)
- # str == "AA"
-//! [21]
-}
-
-void Widget.fromRawDataFunction()
-{
-//! [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]
-}
-
-void Widget.indexOfFunction()
-{
-//! [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]
-}
-
-void Widget.firstIndexOfFunction()
-{
-//! [25]
- str = QString("the minimum")
- str.indexOf(QRegExp("m[aeiou]"), 0) # returns 4
-//! [25]
-}
-
-void Widget.insertFunction()
-{
-//! [26]
- str = QString("Meal")
- str.insert(1, QString("ontr"))
- # str == "Montreal"
-//! [26]
-}
-
-void Widget.isEmptyFunction()
-{
-//! [27]
- QString().isEmpty() # returns true
- QString("").isEmpty() # returns true
- QString("x").isEmpty() # returns false
- QString("abc").isEmpty() # returns false
-//! [27]
-}
-
-void Widget.isNullFunction()
-{
-//! [28]
- QString().isNull() # returns true
- QString("").isNull() # returns false
- QString("abc").isNull() # returns false
-//! [28]
-}
-
-void Widget.lastIndexOfFunction()
-{
-//! [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]
-
-//! [30]
- str = QString("the minimum")
- str.lastIndexOf(QRegExp("m[aeiou]")) # returns 8
-//! [30]
-}
-
-void Widget.leftFunction()
-{
-//! [31]
- x = QString("Pineapple")
- y = QString(x.left(4)) # y == "Pine"
-//! [31]
-}
-
-void Widget.leftJustifiedFunction()
-{
-//! [32]
- s = QString("apple")
- t = QString(s.leftJustified(8, '.')) # t == "apple..."
-//! [32]
-
-//! [33]
- str = QString("Pineapple")
- str = str.leftJustified(5, '.', True) # str == "Pinea"
-//! [33]
-}
-
-void Widget.midFunction()
-{
-//! [34]
- x = QString("Nine pineapples")
- y = QString(x.mid(5, 4)) # y == "pine"
- z = QString(x.mid(5)) # z == "pineapples"
-//! [34]
-}
-
-void Widget.numberFunction()
-{
-//! [35]
- a = 63
- s = QString.number(a, 16) # s == "3f"
- t = QString.number(a, 16).toUpper() # t == "3F"
-//! [35]
-}
-
-void Widget.prependFunction()
-{
-//! [36]
- x = QString("ship")
- y = QString("air")
- x.prepend(y)
- # x == "airship"
-//! [36]
-}
-
-void Widget.removeFunction()
-{
-//! [37]
- s = QString("Montreal")
- s.remove(1, 4)
- # s == "Meal"
-//! [37]
-
-//! [38]
- QString t = "Ali Baba"
- t.remove(QChar('a'), Qt.CaseInsensitive)
- # t == "li Bb"
-//! [38]
-
-//! [39]
- r = QString("Telephone")
- r.remove(QRegExp("[aeiou]."))
- # r == "The"
-//! [39]
-}
-
-void Widget.replaceFunction()
-{
-//! [40]
- x = QString("Say yes!")
- y = QString("no")
- x.replace(4, 3, y)
- # x == "Say no!"
-//! [40]
-
-//! [41]
- QString str = "colour behaviour flavour neighbour"
- str.replace(QString("ou"), QString("o"))
- # str == "color behavior flavor neighbor"
-//! [41]
-
-//! [42]
- s = QString("Banana")
- s.replace(QRegExp("a[mn]"), "ox")
- # s == "Boxoxa"
-//! [42]
-
-//! [43]
- t = QString("A <i>bon mot</i>.")
- t.replace(QRegExp("<i>([^<]*)</i>"), "\\emph{\\1}")
- # t == "A \\emph{bon mot}."
-//! [43]
-
-//! [86]
- QString equis = "xxxxxx"
- equis.replace("xx", "x")
- # equis == "xxx"
-//! [86]
-}
-
-void Widget.reserveFunction()
-{
-//! [44]
- result = QString()
- maxSize = 44
-
- result.reserve(maxSize)
- while condition:
- result.append(nextChar)
-
- result.squeeze()
-//! [44]
-}
-
-void Widget.resizeFunction()
-{
-//! [45]
- s = QString("Hello world")
- s.resize(5)
- # s == "Hello"
-
- s.resize(8)
- # s == "Hello???" (where ? stands for any character)
-//! [45]
-
-//! [46]
- t = QString("Hello")
- t += QString(10, 'X')
- # t == "HelloXXXXXXXXXX"
-//! [46]
-
-//! [47]
- r = QString("Hello")
- r = r.leftJustified(10, ' ')
- # r == "Hello "
-//! [47]
-}
-
-void Widget.rightFunction()
-{
-//! [48]
- x = QString("Pineapple")
- y = x.right(5) # y == "apple"
-//! [48]
-}
-
-void Widget.rightJustifiedFunction()
-{
-//! [49]
- s = QString("apple")
- t = s.rightJustified(8, '.') # t == "...apple"
-//! [49]
-
-//! [50]
- str = QString("Pineapple")
- str = str.rightJustified(5, '.', True) # str == "Pinea"
-//! [50]
-}
-
-void Widget.sectionFunction()
-{ // NOT NEEDED
-//! [51] //! [52]
- QString str
-//! [51]
- QString csv = "forename,middlename,surname,phone"
- QString path = "/usr/local/bin/myapp"; # First field is empty
- QString.SectionFlag flag = QString.SectionSkipEmpty
-
-
- str = csv.section(',', 2, 2); # str == "surname"
- str = path.section('/', 3, 4); # str == "bin/myapp"
- str = path.section('/', 3, 3, flag); # str == "myapp"
-//! [52]
-
-//! [53]
- str = csv.section(',', -3, -2); # str == "middlename,surname"
- str = path.section('/', -1); # str == "myapp"
-//! [53]
-
-//! [54]
- QString data = "forename**middlename**surname**phone"
-
- str = data.section("**", 2, 2); # str == "surname"
- str = data.section("**", -3, -2); # str == "middlename**surname"
-//! [54]
-
-//! [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]
-}
-
-void Widget.setNumFunction()
-{
-//! [56]
- str = QString()
- str.setNum(1234) # str == "1234"
-//! [56]
-}
-
-void Widget.simplifiedFunction()
-{
-//! [57]
- str = QString(" lots\t of\nwhitespace\r\n ")
- str = str.simplified()
- # str == "lots of whitespace"
-//! [57]
-}
-
-void Widget.sizeFunction()
-{
-//! [58]
- str = QString("World")
- n = str.size() # n == 5
-//! [58]
-}
-
-void Widget.splitFunction()
-{
-//! [59]
- str = QString("Some text\n\twith strange whitespace.")
- list = str.split(QRegExp("\\s+")) # A QStringList
- # list: [ "Some", "text", "with", "strange", "whitespace." ]
-//! [59]
-
-//! [60]
- str = QString("This time, a normal English sentence.")
- list = str.split(QRegExp("\\W+"), QString.SkipEmptyParts)
- # list: [ "This", "time", "a", "normal", "English", "sentence" ]
-//! [60]
-
-//! [61]
- str = QString("Now: this sentence fragment.")
- list = str.split(QRegExp("\\b"))
- # list: [ "", "Now", ": ", "this", " ", "sentence", " ", "fragment", "." ]
-//! [61]
-}
-
-void Widget.splitCaseSensitiveFunction()
-{
-//! [62]
- str = QString("a,,b,c")
-
- list1 = str.split(",")
- # list1: [ "a", "", "b", "c" ]
-
- list2 = str.split(",", QString.SkipEmptyParts)
- # list2: [ "a", "b", "c" ]
-//! [62]
-}
-
-void Widget.sprintfFunction()
-{
-//! [63]
- size_t BufSize
- char buf[BufSize]
-
- .snprintf(buf, BufSize, "%lld", 123456789LL)
- QString str = QString.fromAscii(buf)
-//! [63]
-
-//! [64]
- QString result
- QTextStream(&result) << "pi = " << 3.14
- # result == "pi = 3.14"
-//! [64]
-}
-
-void Widget.startsWithFunction()
-{
-//! [65]
- QString str = "Bananas"
- str.startsWith("Ban") # returns true
- str.startsWith("Car") # returns false
-//! [65]
-}
-
-void Widget.toDoubleFunction()
-{
-//! [66]
- str = QString("1234.56")
- val = str.toDouble()[0] # val == 1234.56
-//! [66]
-
-//! [67]
- d, ok = QString( "1234.56e-02" ).toDouble() # ok == true, d == 12.3456
-//! [67]
-
-//! [68] //! [69]
- QLocale.setDefault(QLocale.C)
- d, ok = QString( "1234,56" ).toDouble() # ok == false
-//! [68]
- d, ok = QString( "1234.56" ).toDouble() # ok == true, d == 1234.56
-
-//! [69] //! [70]
- QLocale.setDefault(QLocale.German)
- d, ok = QString( "1234,56" ).toDouble() # ok == true, d == 1234.56
- d, ok = QString( "1234.56" ).toDouble() # ok == true, d == 1234.56
-
-//! [70]
- QLocale.setDefault(QLocale.C)
- d, ok = QString( "1,234,567.89" ).toDouble() # ok == false
-}
-
-void Widget.toFloatFunction()
-{
-//! [71]
- str1 = QString("1234.56")
- str1.toFloat() # returns (1234.56, True)
-
- str2 = QString("R2D2")
- str2.toFloat() # returns (0.0, False)
-//! [71]
-}
-
-void Widget.toIntFunction()
-{
-//! [72]
- str = QString("FF")
- hex, ok = str.toInt(16) # hex == 255, ok == true
- dec, ok = str.toInt(10) # dec == 0, ok == false
-//! [72]
-}
-
-void Widget.toLongFunction()
-{
-//! [73]
- str = QString("FF")
-
- hex, ok = str.toLong(16) # hex == 255, ok == true
- dec, ok = str.toLong(10) # dec == 0, ok == false
-//! [73]
-}
-
-void Widget.toLongLongFunction()
-{
-//! [74]
- str = QString("FF")
-
- hex, ok = str.toLongLong(16) # hex == 255, ok == true
- dec, ok = str.toLongLong(10) # dec == 0, ok == false
-//! [74]
-}
-
-void Widget.toLowerFunction()
-{
-//! [75]
- str = QString("TROlltECH")
- str = str.toLower() # str == "trolltech"
-//! [75]
-}
-
-void Widget.toShortFunction()
-{
-//! [76]
- str = QString("FF")
-
- hex, ok = str.toShort(16) # hex == 255, ok == true
- dec, ok = str.toShort(10) # dec == 0, ok == false
-//! [76]
-}
-
-void Widget.toUIntFunction()
-{
-//! [77]
- str = QString("FF")
-
- hex, ok = str.toUInt(16) # hex == 255, ok == true
- dec, ok = str.toUInt(10) # dec == 0, ok == false
-//! [77]
-}
-
-void Widget.toULongFunction()
-{
-//! [78]
- str = QString("FF")
-
- hex, ok = str.toULong(16) # hex == 255, ok == true
- dec, ok = str.toULong(10) # dec == 0, ok == false
-//! [78]
-}
-
-void Widget.toULongLongFunction()
-{
-//! [79]
- QString str = "FF"
-
- hex, ok = str.toULongLong(16) # hex == 255, ok == true
- dec, ok = str.toULongLong(10) # dec == 0, ok == false
-//! [79]
-}
-
-void Widget.toUShortFunction()
-{
-//! [80]
- str = QString("FF")
-
- hex, ok = str.toUShort(16) # hex == 255, ok == true
- dec, ok = str.toUShort(10) # dec == 0, ok == false
-//! [80]
-}
-
-void Widget.toUpperFunction()
-{
-//! [81]
- str = QString("TeXt")
- str = str.toUpper() # str == "TEXT"
-//! [81]
-}
-
-void Widget.trimmedFunction()
-{
-//! [82]
- str = QString(" lots\t of\nwhitespace\r\n ")
- str = str.trimmed()
- # str == "lots\t of\nwhitespace"
-//! [82]
-}
-
-void Widget.truncateFunction()
-{
-//! [83]
- str = QString("Vladivostok")
- str.truncate(4)
- # str == "Vlad"
-//! [83]
-}
-
-void Widget.plusEqualOperator()
-{
-//! [84]
- x = QString("free")
- y = QString("dom")
- x += y
- # x == "freedom"
-//! [84]
-}
-
-void Widget.arrayOperator()
-{
-//! [85]
- str = QString(...)
-
- if (str[0] == QChar('?'))
- str[0] = QChar('_')
-//! [85]
-}
-
-void Widget.midRefFunction()
-{
-//! [midRef]
- x = QString("Nine pineapples")
- y = x.midRef(5, 4) # y == "pine"
- z = x.midRef(5) # z == "pineapples"
-//! [midRef]
-}
-
-void Widget.leftRefFunction()
-{
-//! [leftRef]
- x = QString("Pineapple")
- y = x.leftRef(4) # y == "Pine"
-//! [leftRef]
-}
-
-void Widget.rightRefFunction()
-{
-//! [rightRef]
- x = QString("Pineapple")
- y = x.rightRef(5) # y == "apple"
-//! [rightRef]
-}
-
-
-int main(int argc, char *argv[])
-{
- QApplication app(argc, argv)
- Widget widget
- widget.show()
- return app.exec()
-}