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Ways to print escape characters in C#
The following are the escape characters in C# and the display column suggests how to use and print them in C# −
| Escape Character | Description | Pattern | Display |
|---|---|---|---|
| \a | Matches a bell character, \u0007. | \a | "\u0007" in "Warning!" + '\u0007' |
| \b | In a character class, matches a backspace, \u0008. | [\b]{3,} | "\b\b\b\b" in "\b\b\b\b" |
| \t | Matches a tab, \u0009. | (\w+)\t | "Name\t", "Addr\t" in "Name\tAddr\t" |
| \r | Matches a carriage return, \u000D. (\r is not equivalent to the newline character, .) | \r (\w+) | "\r Hello" in "\r\Hello World." |
| \v | Matches a vertical tab, \u000B. | [\v]{2,} | "\v\v\v" in "\v\v\v" |
| \f | Matches a form feed, \u000C. | [\f]{2,} | "\f\f\f" in "\f\f\f" |
| Matches a new line, \u000A. | \r (\w+) | "\r Hello" in "\r\Hello World." | |
| \e | Matches an escape, \u001B. | \e | "\x001B" in "\x001B" |
nn | Uses octal representation to specify a character (nnn consists of up to three digits). | \w\040\w | "a b", "c d" in "a bc d" |
| \x nn | Uses hexadecimal representation to specify a character (nn consists of exactly two digits).exactly two digits). | \w\x20\w | \w\x20\w |
| \c X\c x | Matches the ASCII control character that is specified by X or x, where X or x is the letter of the control character. | \cC | "\x0003" in "\x0003" (Ctrl-C) |
| \u nnnn | Matches a Unicode character by using hexadecimal representation (exactly four digits, as represented by nnnn). | \w\u0020\w | "a b", "c d" in "a bc d" |
| \ | When followed by a character that is not recognized as an escaped character, matches that character. | \d+[\+-x\*]\d+\d+[\+-x\*\d+ | "2+2" and "3*9" in "(2+2) * 3*9" |
The following is an example showing how to use some of the escape characters in C# −
Examaple
using System;
using System.Collections.Generic;
class Demo {
static void Main() {
Console.WriteLine("Warning!" + '\u0007');
Console.WriteLine("Demo Text \t Demo Text");
Console.WriteLine("This is it!
This is on the next line!");
}
}Output
Warning! Demo Text Demo Text This is it! This is on the next line!
Updated on: 20-Jun-2020
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