QRegularExpressionre("^(\\d\\d)/(\\d\\d)/(\\d\\d\\d\\d)$");QRegularExpressionMatchmatch=re.match("08/12/1985");if(match.hasMatch()) {QStringday=match.captured(1);// day == "08"QStringmonth=match.captured(2);// month == "12"QStringyear=match.captured(3);// year =...
bool exactMatch(const QString &str) const:判断给定字符串是否与当前模式完全匹配。 int indexIn(const QString &str, int offset = 0, CaretMode caretMode = CaretAtZero) const:返回匹配的起始索引位置,如果未找到匹配则返回-1。 bool isEmpty() const:判断是否为空模式。 bool isMinimal() const:判断...
QRegularExpression::PatternOptionsoption=re.patternOptions(); 1. 2. 模式选项 示例: QRegularExpressionre("^(\\d\\d)/(\\d\\d)/(\\d\\d\\d\\d)$"); QRegularExpressionMatchmatch=re.match("08/12/1985"); if(match.hasMatch()) { QStringmatched=match.captured(0); QStringday=match.ca...
The first part of the example builds a regular expression that represents the format of a standard email address. Using that expression, the example then searches the information for the email address of one of the group of friends. Contact information for Janice is in row 2 of thecontactscell...
Normally, when one searches for a sub-string in a string, there has to be an exact match. Hence, if one searches for a sub-string "abc" then the string being searched for has to contain these exact letters in the same exact sequence for a match to be found. One can extend the sea...
RE2::FullMatch(s, "re") RE2::PartialMatch(s, "^re$") Does the regular expression match a substring of the string? RE2::PartialMatch(s, "re") Does the regular expression match a substring of the string? If so, where? RE2::PartialMatch(s, "(re)", &match) Does the regular...
echo "$word does not match the pattern\n"; } } In the$wordsarray, we have five words. $pattern = "/.even/"; Here we define the search pattern. The pattern is a string. The regular expression is placed within delimiters. The delimiters are mandatory. In our case, we use forward sl...
Regular expressions vary in complexity, but once you understand the basics of how they are constructed, you can decipher or create any regular expression. String Literals The most basic form of pattern matching is the match of a string literal. For example, if the regular expression is EMP ...
Exact String Matching If you need exact matches you will need another type of modifier. Let’s see an example so you can see what I’m talking about: # We want to find if this string is exactly four letters long, this will # still match because it has more than four, but it's no...
~QRegularExpression() int captureCount() const QString errorString() const QRegularExpressionMatchIterator globalMatch(const QString &subject, int offset = 0, QRegularExpression::MatchType matchType = NormalMatch, QRegularExpression::MatchOptions matchOptions = NoMatchOption) const QRegularExpressionMa...