CSharp C# Regular Expression REPLACE example
See also CSharp C# Regular Expression RegExp for SEARCH and REPLACE with examples Notepad++ and Visual Studio
using System;
using System.Text.RegularExpressions;
class Stuff4
{
static void Main()
{
/*
Before: A hiker is not a climber
After : A hotter is not a climber
[replace "iker" with
"otter"]
- This example passes in the
string "A hiker is not a climber",
- Then we pass in a RegEx search
pattern "(.*)(iker)(.*)" that:
Takes any character any
number of times until we find "iker" so
it will return "A
h" as the first find (a/k/a $1).
And "iker" will be
$2. Finally, any character, after
"iker", any
number of times, which is
" is not a climber" (a/k/a $3)
- Then we pass in a RegEx string
that describes how we want the matches
reconstructed with
"$1otter$3":
- Start by picking up $1:
"A h"
- Then add the arbitrary
string "otter" (and skip $2 ["iker"]
- Finally, add $3: "
is not a climber"
- We get the reconstructed
string: "A hotter is not a climber"
*
* ACTUAL OUTPUT:
A hiker is not a climber
A hotter is not a climber
*/
string inputNow = "A hiker is not a climber";
string outputNow = Regex.Replace(inputNow, "(.*)(iker)(.*)", "$1otter$3");
Console.WriteLine(inputNow);
Console.WriteLine(outputNow);
Console.ReadLine();
}
}
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