2008. 10. 22. 14:48
Web
| Character | Code Points (Hex) |
Code Points (Dec) |
Why encode? | |
|---|---|---|---|---|
| Reserved characters |
Dollar ("$") Ampersand ("&") Plus ("+") Comma (",") Forward slash/Virgule ("/") Colon (":") Semi-colon (";") Equals ("=") Question mark ("?") 'At' symbol ("@") |
24 26 2B 2C 2F 3A 3B 3D 3F 40 |
36 38 43 44 47 58 59 61 63 64 |
|
| Unsafe characters |
Space | 20 | 32 | Significant sequences of spaces may be lost in some uses (especially multiple spaces) |
| Quotation marks 'Less Than' symbol ("<") 'Greater Than' symbol (">") |
22 3C 3E |
34 60 62 |
These characters are often used to delimit URLs in plain text. | |
| 'Pound' character ("#") | 23 | 35 | This is used in URLs to indicate where a fragment identifier (bookmarks/anchors in HTML) begins. | |
| Percent character ("%") | 25 | 37 | This is used to URL encode/escape other characters, so it should itself also be encoded. | |
| Misc. characters: Left Curly Brace ("{") Right Curly Brace ("}") Vertical Bar/Pipe ("|") Backslash ("\") Caret ("^") Tilde ("~") Left Square Bracket ("[") Right Square Bracket ("]") Grave Accent ("`") |
7B 7D 7C 5C 5E 7E 5B 5D 60 |
123 125 124 92 94 126 91 93 96 |
Some systems can possibly modify these characters | |