The following example uses the Replace(String, String, String, RegexOptions) method to replace the local machine and drive names in a UNC path with a local file path. The regular expression uses the Environment.MachineName property to include the name of the local computer, and the Environment...
For example, splitting a string on a single hyphen causes the returned array to include an empty string in the position where two adjacent hyphens are found. If a match is found at the beginning or the end of the input string, an empty string is included at the beginning or the end of...
The functions that take a match_results object set its members to reflect whether the search succeeded and if so what the various capture groups in the regular expression captured.ExampleC++ Copy // std__regex__regex_search.cpp // compile with: /EHsc #include <regex> #include <iostream> ...
// std__regex__basic_regex.cpp// compile with: /EHsc#include<regex>#include<iostream>usingnamespacestd;intmain(){ regex::value_type elem ='x'; regex::flag_type flag = regex::grep; elem = elem;// to quiet "unused" warningsflag = flag;// constructorsregex rx0;cout<<"match(\"abc...
// std__regex__basic_regex.cpp// compile with: /EHsc#include<regex>#include<iostream>usingnamespacestd;intmain(){ regex::value_type elem ='x'; regex::flag_type flag = regex::grep; elem = elem;// to quiet "unused" warningsflag = flag;// constructorsregex rx0;cout<<"match(\"abc...
path\to\project\bin\Debug\RegexSample.dll有关详细信息,请参阅从C# 项目创建 .NET DLL。创建外部语言需要在数据库中创建外部语言。 外部语言是数据库范围内的对象,这意味着需要为要在其中使用外部语言(如 C#)的每个数据库创建外部语言。创建包含扩展名的 .zip 文件。 作为Windows 上 SQL Server 安...
It uses the RegexOptions.IgnoreCase option to ensure that the regular expression locates words beginning with both an uppercase "a" and a lowercase "a". C# Copy Run using System; using System.Text.RegularExpressions; namespace Examples { public class Example2 { public static void Main() { ...
It uses the RegexOptions.IgnoreCase option to ensure that the regular expression locates words beginning with both an uppercase "a" and a lowercase "a". C# Copy Run using System; using System.Text.RegularExpressions; namespace Examples { public class Example2 { public static void Main() { ...
to indicate negation i.e. (?!...). Let's take a look at the following regular expression (T|t)he(?!\sfat) which means: get all The or the words from the input string that are not followed by a space character and the word fat. "(T|t)he(?!\sfat)" => The fat cat sat...
Namespace: System.Text.RegularExpressions Assembly: System.Text.RegularExpressions.dll Source: Regex.cs Converts any escaped characters in the input string. C# Copy public static string Unescape (string str); Parameters str String The input string containing the text to convert. Returns String...