Initial import from the monolithic Qt.

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 224 insertions, 0 deletions

diff --git a/doc/src/snippets/code/src_corelib_tools_qregexp.cpp b/doc/src/snippets/code/src_corelib_tools_qregexp.cpp
new file mode 100644
index 0000000000..ccb6382723
--- /dev/null
+++ b/doc/src/snippets/code/src_corelib_tools_qregexp.cpp
@@ -0,0 +1,224 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the documentation of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+//! [0]
+QRegExp rx("(\\d+)");
+QString str = "Offsets: 12 14 99 231 7";
+QStringList list;
+int pos = 0;
+
+while ((pos = rx.indexIn(str, pos)) != -1) {
+    list << rx.cap(1);
+    pos += rx.matchedLength();
+}
+// list: ["12", "14", "99", "231", "7"]
+//! [0]
+
+
+//! [1]
+QRegExp rx("*.txt");
+rx.setPatternSyntax(QRegExp::Wildcard);
+rx.exactMatch("README.txt");        // returns true
+rx.exactMatch("welcome.txt.bak");   // returns false
+//! [1]
+
+
+//! [2]
+QRegExp rx("ro+m");
+rx.setMinimal(true);
+//! [2]
+
+
+//! [3]
+QRegExp mark("\\b"      // word boundary
+              "[Mm]ark" // the word we want to match
+            );
+//! [3]
+
+
+//! [4]
+QRegExp rx("^\\d\\d?$");    // match integers 0 to 99
+rx.indexIn("123");          // returns -1 (no match)
+rx.indexIn("-6");           // returns -1 (no match)
+rx.indexIn("6");            // returns 0 (matched as position 0)
+//! [4]
+
+
+//! [5]
+QRegExp rx("^\\S+$");       // match strings without whitespace
+rx.indexIn("Hello world");  // returns -1 (no match)
+rx.indexIn("This_is-OK");   // returns 0 (matched at position 0)
+//! [5]
+
+
+//! [6]
+QRegExp rx("\\b(mail|letter|correspondence)\\b");
+rx.indexIn("I sent you an email");     // returns -1 (no match)
+rx.indexIn("Please write the letter"); // returns 17
+//! [6]
+
+
+//! [7]
+QString captured = rx.cap(1); // captured == "letter"
+//! [7]
+
+
+//! [8]
+QRegExp rx("&(?!amp;)");      // match ampersands but not &amp;
+QString line1 = "This & that";
+line1.replace(rx, "&amp;");
+// line1 == "This &amp; that"
+QString line2 = "His &amp; hers & theirs";
+line2.replace(rx, "&amp;");
+// line2 == "His &amp; hers &amp; theirs"
+//! [8]
+
+
+//! [9]
+QString str = "One Eric another Eirik, and an Ericsson. "
+              "How many Eiriks, Eric?";
+QRegExp rx("\\b(Eric|Eirik)\\b"); // match Eric or Eirik
+int pos = 0;    // where we are in the string
+int count = 0;  // how many Eric and Eirik's we've counted
+while (pos >= 0) {
+    pos = rx.indexIn(str, pos);
+    if (pos >= 0) {
+        ++pos;      // move along in str
+        ++count;    // count our Eric or Eirik
+    }
+}
+//! [9]
+
+
+//! [10]
+str = "Nokia Corporation\tqt.nokia.com\tNorway";
+QString company, web, country;
+rx.setPattern("^([^\t]+)\t([^\t]+)\t([^\t]+)$");
+if (rx.indexIn(str) != -1) {
+    company = rx.cap(1);
+    web = rx.cap(2);
+    country = rx.cap(3);
+}
+//! [10]
+
+
+//! [11]
+QStringList field = str.split("\t");
+//! [11]
+
+
+//! [12]
+QRegExp rx("*.html");
+rx.setPatternSyntax(QRegExp::Wildcard);
+rx.exactMatch("index.html");                // returns true
+rx.exactMatch("default.htm");               // returns false
+rx.exactMatch("readme.txt");                // returns false
+//! [12]
+
+
+//! [13]
+QString str = "offsets: 1.23 .50 71.00 6.00";
+QRegExp rx("\\d*\\.\\d+");    // primitive floating point matching
+int count = 0;
+int pos = 0;
+while ((pos = rx.indexIn(str, pos)) != -1) {
+    ++count;
+    pos += rx.matchedLength();
+}
+// pos will be 9, 14, 18 and finally 24; count will end up as 4
+//! [13]
+
+
+//! [14]
+QRegExp rx("(\\d+)(\\s*)(cm|inch(es)?)");
+int pos = rx.indexIn("Length: 36 inches");
+QStringList list = rx.capturedTexts();
+// list is now ("36 inches", "36", " ", "inches", "es")
+//! [14]
+
+
+//! [15]
+QRegExp rx("(\\d+)(?:\\s*)(cm|inch(?:es)?)");
+int pos = rx.indexIn("Length: 36 inches");
+QStringList list = rx.capturedTexts();
+// list is now ("36 inches", "36", "inches")
+//! [15]
+
+
+//! [16]
+QStringList list = rx.capturedTexts();
+QStringList::iterator it = list.begin();
+while (it != list.end()) {
+    myProcessing(*it);
+    ++it;
+}
+//! [16]
+
+
+//! [17]
+QRegExp rxlen("(\\d+)(?:\\s*)(cm|inch)");
+int pos = rxlen.indexIn("Length: 189cm");
+if (pos > -1) {
+    QString value = rxlen.cap(1); // "189"
+    QString unit = rxlen.cap(2);  // "cm"
+    // ...
+}
+//! [17]
+
+
+//! [18]
+QRegExp rx("/([a-z]+)/([a-z]+)");
+rx.indexIn("Output /dev/null");   // returns 7 (position of /dev/null)
+rx.pos(0);                        // returns 7 (position of /dev/null)
+rx.pos(1);                        // returns 8 (position of dev)
+rx.pos(2);                        // returns 12 (position of null)
+//! [18]
+
+
+//! [19]
+s1 = QRegExp::escape("bingo");   // s1 == "bingo"
+s2 = QRegExp::escape("f(x)");    // s2 == "f\\(x\\)"
+//! [19]
+
+
+//! [20]
+QRegExp rx("(" + QRegExp::escape(name) +
+           "|" + QRegExp::escape(alias) + ")");
+//! [20]