Regex.Matches c# 双引号
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Regex.Matches c# double quotes
提问by user713813
I got this code below that works for single quotes. it finds all the words between the single quotes. but how would I modify the regex to work with double quotes?
我在下面得到了适用于单引号的代码。它找到单引号之间的所有单词。但是我将如何修改正则表达式以使用双引号？
keywords is coming from a form post
关键字来自表单帖子
so
所以
keywords = 'peace "this world" would be "and then" some'
// Match all quoted fields
MatchCollection col = Regex.Matches(keywords, @"'(.*?)'");
// Copy groups to a string[] array
string[] fields = new string[col.Count];
for (int i = 0; i < fields.Length; i++)
{
fields[i] = col[i].Groups[1].Value; // (Index 1 is the first group)
}// Match all quoted fields
MatchCollection col = Regex.Matches(keywords, @"'(.*?)'");
// Copy groups to a string[] array
string[] fields = new string[col.Count];
for (int i = 0; i < fields.Length; i++)
{
fields[i] = col[i].Groups[1].Value; // (Index 1 is the first group)
}
采纳答案by Joel Etherton
You would simply replace the 'with \"and remove the literal to reconstruct it properly.
您只需替换'with\"并删除文字即可正确重建它。
MatchCollection col = Regex.Matches(keywords, "\\"(.*?)\\"");
回答by Joshua Honig
The exact same, but with double quotes in place of single quotes. Double quotes aren't special in a regex pattern. But I usually add something to make sure I'm not spanning accross multiple quoted strings in a single match, and to accomodate double-double quote escapes:
完全相同，但用双引号代替单引号。双引号在正则表达式模式中并不特殊。但我通常会添加一些内容以确保我不会在单个匹配中跨越多个带引号的字符串，并适应双双引号转义：
string pattern = @"""([^""]|"""")*""";
// or (same thing):
string pattern = "\"(^\"|\"\")*\"";
Which translates to the literal string
转换为文字字符串
"(^"|"")*"
回答by Kirill Polishchuk
Use this regex:
使用这个正则表达式：
"(.*?)"
or
或者
"([^"]*)"
In C#:
在 C# 中：
var pattern = "\"(.*?)\"";
or
或者
var pattern = "\"([^\"]*)\"";
回答by Sam Greenhalgh
Do you want to match "or '?
你想匹配"还是'？
in which case you might want to do something like this:
在这种情况下，您可能想要执行以下操作：
[Test]
public void Test()
{
string input = "peace \"this world\" would be 'and then' some";
MatchCollection matches = Regex.Matches(input, @"(?<=([\'\""])).*?(?=)");
Assert.AreEqual("this world", matches[0].Value);
Assert.AreEqual("and then", matches[1].Value);
}
