Début d'en-tête
Signification du symbole
The Start of Heading symbol was used in teletype and other communication systems to indicate the beginning of a message title. A heading usually contains metadata such as sender and recipient addresses and is used to organize the transfer of information between devices.
In modern computer systems and applications, the use of the U+0001 symbol has become rare; its functions are often replaced by other methods of encoding metadata or structuring data.
Like other control characters, this symbol has no visual representation and does not occupy space on the screen or in print. The block Pictogrammes de commande 2400–243F includes a separate symbol representing the graphic image of the header one. It's the abbreviation called SOH (Start of Heading) — ␁ .
Le symbole «Début d'en-tête» est inclus dans le sous-bloc «Contrôles C0‹ du bloc ›Latin de base et a été approuvé dans le cadre de la version Unicode 1.1 en 1993.
Synonymes
SOH.
| Nom Unicode | Start of Heading |
| Numéro Unicode | |
| Plan | 0: Plan multilingue de base |
| Bloc Unicode | Latin de base |
| Sous-bloc Unicode | Contrôles C0 |
| Version Unicode | 1.1 (1993) |
| Raccourci clavier | ^A |
| Type de support de miroir jumelé (bidi) | None |
| Exclusion de composition | No |
| Changement de cas | 0001 |
| Changement de boîtier simple | 0001 |
| scripts | Common |
| Encodage | hex | dec (bytes) | dec | binary |
|---|---|---|---|---|
| UTF-8 | 01 | 1 | 1 | 00000001 |
| UTF-16BE | 00 01 | 0 1 | 1 | 00000000 00000001 |
| UTF-16LE | 01 00 | 1 0 | 256 | 00000001 00000000 |
| UTF-32BE | 00 00 00 01 | 0 0 0 1 | 1 | 00000000 00000000 00000000 00000001 |
| UTF-32LE | 01 00 00 00 | 1 0 0 0 | 16777216 | 00000001 00000000 00000000 00000000 |
Copiez et collez ces codes pour utiliser le personnage Début d'en-tête dans du texte sur des sites web, des réseaux sociaux, des messageries ou des articles de blog.
| HTML | |
| CSS | |
| JavaScript, JSON | |
| Unix, C, PHP, JAVA | |
| Ruby, PHP | |
| Perl | |
| URL-encode |