diff options
Diffstat (limited to 'doc/src/snippets/code/src_corelib_tools_qregularexpression.cpp')
-rw-r--r-- | doc/src/snippets/code/src_corelib_tools_qregularexpression.cpp | 289 |
1 files changed, 0 insertions, 289 deletions
diff --git a/doc/src/snippets/code/src_corelib_tools_qregularexpression.cpp b/doc/src/snippets/code/src_corelib_tools_qregularexpression.cpp deleted file mode 100644 index cab89d9c9e..0000000000 --- a/doc/src/snippets/code/src_corelib_tools_qregularexpression.cpp +++ /dev/null @@ -1,289 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2012 Giuseppe D'Angelo <dangelog@gmail.com>. -** Contact: http://www.qt-project.org/ -** -** 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] -QRegularExpression re("a pattern"); -//! [0] - - -//! [1] -QRegularExpression re; -re.setPattern("another pattern"); -//! [1] - - -//! [2] -// matches two digits followed by a space and a word -QRegularExpression re("\\d\\d \\w+"); - -// matches a backslash -QRegularExpression re2("\\\\"); -//! [2] - - -//! [3] -QRegularExpression re("a third pattern"); -QString pattern = re.pattern(); // pattern == "a third pattern" -//! [3] - - -//! [4] -// matches "Qt rocks", but also "QT rocks", "QT ROCKS", "qT rOcKs", etc. -QRegularExpression re("Qt rocks", QRegularExpression::CaseInsensitiveOption); -//! [4] - - -//! [5] -QRegularExpression re("^\\d+$"); -re.setPatternOptions(QRegularExpression::MultilineOption); -// re matches any line in the subject string that contains only digits (but at least one) -//! [5] - - -//! [6] -QRegularExpression re = QRegularExpression("^two.*words$", QRegularExpression::MultilineOption - | QRegularExpression::DotMatchesEverythingOption); - -QRegularExpression::PatternOptions options = re.patternOptions(); -// options == QRegularExpression::MultilineOption | QRegularExpression::DotMatchesEverythingOption -//! [6] - - -//! [7] -// match two digits followed by a space and a word -QRegularExpression re("\\d\\d \\w+"); -QRegularExpressionMatch match = re.match("abc123 def"); -bool hasMatch = match.hasMatch(); // true -//! [7] - - -//! [8] -QRegularExpression re("\\d\\d \\w+"); -QRegularExpressionMatch match = re.match("abc123 def"); -if (match.hasMatch()) { - QString matched = match.captured(0); // matched == "23 def" - // ... -} -//! [8] - - -//! [9] -QRegularExpression re("\\d\\d \\w+"); -QRegularExpressionMatch match = re.match("12 abc 45 def", 1); -if (match.hasMatch()) { - QString matched = match.captured(0); // matched == "45 def" - // ... -} -//! [9] - - -//! [10] -QRegularExpression re("^(\\d\\d)/(\\d\\d)/(\\d\\d\\d\\d)$"); -QRegularExpressionMatch match = re.match("08/12/1985"); -if (match.hasMatch()) { - QString day = re.captured(1); // day == "08" - QString month = re.captured(2); // month == "12" - QString year = re.captured(3); // year == "1985" - // ... -} -//! [10] - - -//! [11] -QRegularExpression re("abc(\\d+)def"); -QRegularExpressionMatch match = re.match("XYZabc123defXYZ"); -if (match.hasMatch()) { - int startOffset = re.capturedStart(1); // startOffset == 6 - int endOffset = re.capturedEnd(1); // endOffset == 9 - // ... -} -//! [11] - - -//! [12] -QRegularExpression re("^(?<date>\\d\\d)/(?<month>\\d\\d)/(?<year>\\d\\d\\d\\d)$"); -QRegularExpressionMatch match = re.match("08/12/1985"); -if (match.hasMatch()) { - QString date = match.captured("date"); // date == "08" - QString month = match.captured("month"); // month == "12" - QString year = match.captured("year"); // year == 1985 -} -//! [12] - - -//! [13] -QRegularExpression re("(\\w+)"); -QRegularExpressionMatchIterator i = re.globalMatch("the quick fox"); -//! [13] - - -//! [14] -QStringList words; -while (i.hasNext()) { - QRegularExpressionMatch match = i.next(); - QString word = match.captured(1); - words << word; -} -// words contains "the", "quick", "fox" -//! [14] - - -//! [15] -QString pattern("^(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec) \\d\\d?, \\d\\d\\d\\d$"); -QRegularExpression re(pattern); - -QString input("Jan 21,"); -QRegularExpressionMatch match = re.match(input, 0, QRegularExpressionMatch::PartialPreferCompleteMatch); -bool hasMatch = match.hasMatch(); // false -bool hasPartialMatch = match.hasPartialMatch(); // true -//! [15] - - -//! [16] -QString input("Dec 8, 1985"); -QRegularExpressionMatch match = re.match(input, 0, QRegularExpressionMatch::PartialPreferCompleteMatch); -bool hasMatch = match.hasMatch(); // true -bool hasPartialMatch = match.hasPartialMatch(); // false -//! [16] - - -//! [17] -QRegularExpression re("abc\\w+X|def"); -QRegularExpressionMatch match = re.match("abcdef", 0, QRegularExpressionMatch::PartialPreferCompleteMatch); -bool hasMatch = match.hasMatch(); // true -bool hasPartialMatch = match.hasPartialMatch(); // false -QString captured = match.captured(0); // captured == "def" -//! [17] - - -//! [18] -QRegularExpression re("abc\\w+X|defY"); -QRegularExpressionMatch match = re.match("abcdef", 0, QRegularExpressionMatch::PartialPreferCompleteMatch); -bool hasMatch = match.hasMatch(); // false -bool hasPartialMatch = match.hasPartialMatch(); // true -QString captured = match.captured(0); // captured == "abcdef" -//! [18] - - -//! [19] -QRegularExpression re("abc|ab"); -QRegularExpressionMatch match = re.match("ab", 0, QRegularExpressionMatch::PartialPreferFirstMatch); -bool hasMatch = match.hasMatch(); // false -bool hasPartialMatch = match.hasPartialMatch(); // true -//! [19] - - -//! [20] -QRegularExpression re("abc(def)?"); -QRegularExpressionMatch match = re.match("abc", 0, QRegularExpressionMatch::PartialPreferFirstMatch); -bool hasMatch = match.hasMatch(); // false -bool hasPartialMatch = match.hasPartialMatch(); // true -//! [20] - -//! [21] -QRegularExpression re("(abc)*"); -QRegularExpressionMatch match = re.match("abc", 0, QRegularExpressionMatch::PartialPreferFirstMatch); -bool hasMatch = match.hasMatch(); // false -bool hasPartialMatch = match.hasPartialMatch(); // true -//! [21] - -//! [22] -QRegularExpression invalidRe("(unmatched|parenthesis"); -bool isValid = invalidRe.isValid(); // false -//! [22] - -//! [23] -QRegularExpression invalidRe("(unmatched|parenthesis"); -if (!invalidRe.isValid()) { - QString errorString = invalidRe.errorString(); // errorString == "missing )" - int errorOffset = invalidRe.patternErrorOffset(); // errorOffset == 22 - // ... -} -//! [23] - -//! [24] -QRegularExpression re("^this pattern must match exactly$"); -//! [24] - -//! [25] -QString p("a .*|pattern"); -QRegularExpression re("\\A(?:" + p + ")\\z"); // re matches exactly the pattern string p -//! [25] - -//! [26] -QString escaped = QRegularExpression::escape("a(x) = f(x) + g(x)"); -// escaped == "a\\(x\\)\\ \\=\\ f\\(x\\)\\ \\+\\ g\\(x\\)" -//! [26] - -//! [27] -QString pattern = "(" + QRegularExpression::escape(name) + - "|" + QRegularExpression::escape(nickname) + ")"; -QRegularExpression re(pattern); -//! [27] - -//! [28] -QRegularExpressionMatch match = re.match(...); -for (int i = 0; i <= match.lastCapturedIndex(); ++i) { - QString captured = match.captured(i); - // ... -} -//! [28] - -//! [29] -QRegularExpression("(\d\d) (?<name>\w+)"); -QRegularExpressionMatch match = re.match("23 Jordan"); -if (match.hasMatch()) { - QString number = match.captured(1); // first == "23" - QString name = match.captured("name"); // name == "Jordan" -} -//! [29] - -//! [30] -// extracts the words -QRegularExpression re("(\w+)"); -QString subject("the quick fox"); -QRegularExpressionMatchIterator i = re.globalMatch(subject); -while (i.hasNext()) { - QRegularExpressionMatch match = i.next(); - // ... -} -//! [30] - - |