刪除與正則表達式匹配的所有單詞

Question

我想從String中刪除字符序列，如"htsap://"或"ftsap://"。可能嗎？
讓我用一個例子來說明我的需求。

實際輸入字符串：

"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." 

預期的結果String：

"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." 

模式我想：（還不是很確定這是一個正確的方式）

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

和：

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

任何人都可以在這裏建議嗎？

Answer 1

由於您在示例String中轉義引號，因此我假設您正在使用Java。

你應該嘗試：

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

Here is a link到的究竟是什麼這個正則表達式匹配工作的例子！

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工作原理：

它匹配並移除的字母數字字符的任何序列（下劃線），隨後://和可能由前面"和/或之後。

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編輯：如何使用Matcher實現相同的結果？

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

使用這個表達式：

"(ftsap|htsap).//" 

而且隨着''

正則表達式替換它解釋說：

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

Debuggex Demo