/**************************************************************************** ** ** Copyright (C) 2016 The Qt Company Ltd. ** Contact: https://www.qt.io/licensing/ ** ** This file is part of the documentation of Qt for Python. ** ** $QT_BEGIN_LICENSE:BSD$ ** Commercial License Usage ** Licensees holding valid commercial Qt licenses may use this file in ** accordance with the commercial license agreement provided with the ** Software or, alternatively, in accordance with the terms contained in ** a written agreement between you and The Qt Company. For licensing terms ** and conditions see https://www.qt.io/terms-conditions. For further ** information use the contact form at https://www.qt.io/contact-us. ** ** BSD License Usage ** Alternatively, 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 The Qt Company Ltd 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] rx = QRegExp("(\\d+)") txt = "Offsets: 12 14 99 231 7" lst = [] pos = rx.indexIn(txt, 0) while pos != -1: lst.append(rx.cap(1)) pos += rx.matchedLength() pos = rx.indexIn(txt, pos) # lst: ["12", "14", "99", "231", "7"] //! [0] //! [1] rx = QRegExp("*.txt") rx.setPatternSyntax(QRegExp.Wildcard) rx.exactMatch("README.txt") # returns True rx.exactMatch("welcome.txt.bak") # returns False //! [1] //! [2] rx = QRegExp("ro+m") rx.setMinimal(True) //! [2] //! [3] mark = QRegExp("\\b" # word boundary "[Mm]ark" # the word we want to match ) //! [3] //! [4] rx = QRegExp("^\\d\\d?$") # match integers 0 to 99 rx.indexIn("123") # returns -1 (no match) rx.indexIn("-6") # returns -1 (no match) rx.indexIn("6") # returns 0 (matched as position 0) //! [4] //! [5] rx = QRegExp("^\\S+$") # 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] rx = QRegExp("\\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] captured = rx.cap(1) # captured == "letter" //! [7] //! [8] rx = QRegExp("&(?!amp;)") # match ampersands but not & line1 = QString("This & that") line1.replace(rx, "&") # line1 == "This & that" line2 = QString("His & hers & theirs") line2.replace(rx, "&") # line2 == "His & hers & theirs" //! [8] //! [9] txt = QString("One Eric another Eirik, and an Ericsson. How many Eiriks, Eric?") rx = QRegExp("\\b(Eric|Eirik)\\b") # match Eric or Eirik pos = 0 # where we are in the string count = 0 # how many Eric and Eirik's we've counted while pos >= 0: pos = rx.indexIn(txt, pos) if pos >= 0: pos += 1 # move along in str count += 1 # count our Eric or Eirik //! [9] //! [10] txt = "The Qt Company Ltd\tqt.io\tFinland" rx.setPattern("^([^\t]+)\t([^\t]+)\t([^\t]+)$"); if rx.indexIn(txt) != -1: company = rx.cap(1) web = rx.cap(2) country = rx.cap(3) //! [10] //! [11] field = txt.split("\t") //! [11] //! [12] rx = QRegExp("*.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] txt = QString("offsets: 1.23 .50 71.00 6.00") rx = QRegExp("\\d*\\.\\d+") # primitive floating point matching count = 0 pos = rx.indexIn(txt, 0) while pos != -1: count += 1 pos += rx.matchedLength() pos = rx.indexIn(txt, pos) # pos will be 9, 14, 18 and finally 24; count will end up as 4 //! [13] //! [14] rx = QRegExp("(\\d+)(\\s*)(cm|inch(es)?)") pos = rx.indexIn("Length: 36 inches") lst = rx.capturedTexts() # lst is now ("36 inches", "36", " ", "inches", "es") //! [14] //! [15] rx = QRegExp("(\\d+)(?:\\s*)(cm|inch(?:es)?)") pos = rx.indexIn("Length: 36 inches") lst = rx.capturedTexts() # lst is now ("36 inches", "36", "inches") //! [15] //! [16] for a in rx.capturedTexts(): myProcessing(a) //! [16] //! [17] rxlen = QRegExp("(\\d+)(?:\\s*)(cm|inch)") pos = rxlen.indexIn("Length: 189cm") if pos > -1: value = rxlen.cap(1) # "189" unit = rxlen.cap(2) # "cm" //! [17] //! [18] rx = QRegExp("/([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] rx = QRegExp("(" + QRegExp.escape(name) + "|" + QRegExp.escape(alias) + ")") //! [20]