删除与正则表达式匹配的所有单词

Question

我想从"htsap://"中删除"ftsap://"或String等字符序列。有可能吗？
让我用一个例子说明我的需求。

实际输入字符串：

"Every Web page has a http unique address called a URL (Uniform Resource Locator) which identifies where it is located on the Web. For "ftsap://"example, the URL for CSM Library's home page is: "htsap://"www.smccd.edu/accounts/csmlibrary/index.htm The basic parts of a URL often provide \"clues\" to htsap://where a web page originates and who might be responsible for the information at that page or site."

预期的结果字符串：

"Every Web page has a http unique address called a URL (Uniform Resource Locator) which identifies where it is located on the Web. For example, the URL for CSM Library's home page is: www.smccd.edu/accounts/csmlibrary/index.htm The basic parts of a URL often provide \"clues\" to where a web page originates and who might be responsible for the information at that page or site."

我试过的模式:(不太确定它是正确的方式）

((.*?)(?=("htsap://|ftsap://")))

和

((.*?)(?=("htsap://|ftsap://")))(.*)

有人可以在这里建议吗？

Answer 1

由于您在样本String中撤消了引号，我假设您正在使用Java。

你应该尝试：

final String res = input.replaceAll("\"?\\w+://\"?", "");

Here is a link一个关于这个正则表达式完全匹配的工作示例！

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工作原理：

匹配并删除任何字母数字字符（和下划线）序列，然后是://，可能在"之前和/或之后。

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编辑：如何使用Matcher获得相同的结果？

final String input = "Every Web page has a http unique address called a URL (Uniform Resource Locator) which identifies where it is located on the Web. For \"ftsap://\"example, the URL for CSM Library's home page is: \"htsap://\"www.smccd.edu/accounts/csmlibrary/index.htm The basic parts of a URL often provide \"clues\" to htsap://where a web page originates and who might be responsible for the information at that page or site.";
final Pattern p = Pattern.compile("\"?\\w+://\"?");
final StringBuilder b = new StringBuilder(input);
Matcher m;
while((m = p.matcher(b.toString())).find()) {
    b.replace(m.start(), m.end(), "");
}

System.out.println(b.toString());

Answer 2

使用此正则表达式：

"(ftsap|htsap).//"

并将其替换为''

正则表达式解释说：

"(ftsap|htsap).//" with flag g

Debuggex Demo