Korean language and computers

The writing system of the Korean language is a syllabic alphabet of character parts (jamo) organized into character blocks (geulja) representing syllables. The character parts cannot be written from left to right on the computer, as in many Western languages. Every possible syllable in Korean would have to be rendered as syllable blocks by a font, or each character part would have to be encoded separately. Unicode has both options; the character parts ᄒ (h) and ᅡ (a), and the combined syllable 하 (ha), are encoded. ISO/IEC 2022Extended Unix Code#EUC-KRKPS 9566GB 12052 and List of modern Hangul characters in ISO/IEC 2022–compliant national character set standards In RFC 1557, a method known as ISO-2022-KR for seven-bit encoding of Korean characters in email was described. Where eight bits are allowed, EUC-KR encoding is preferred. These two encodings combine US-ASCII (ISO 646) with the Korean standard KS X 1001:1992 (previously named KS C 5601:1987). Another character set, KPS 9566 (similar to KS X 1001), is used in North Korea. The international Unicode standard contains special characters for the Korean language in the hangul phonetic system. Unicode supports two methods. The method used by Microsoft Windows is to have each of the 11,172 syllable combinations as code and a preformed font character. The other method encodes letters (jamos) and lets the software combine them correctly. The Windows method requires more font memory but allows better shapes, since it is complicated to create stylistically correct combinations (preferable for documents). Another possibility is stacking a sequence of medial(s) (jungseong) and a sequence of final(s) (jongseong) or a Middle Korean pitch mark (if needed) on top of the sequence of initial(s) (choseong) if the font has medial and final jamos with zero-width spacing inserted to the left of the cursor or caret, thus appearing in the right place below (or to the right of) the initial.

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Concepts associés (4)

Écriture manuscrite horizontale et verticale en Asie orientale

Une multitude de manuscrits peuvent être rédigés à l’horizontale ou à la verticale. Les manuscrits en chinois mandarin, japonais et coréen peuvent s’écrire en s’orientant le long de ces deux axes, car elles consistent, principalement d’unités logographiques ou syllabiques déconnectées, chacun occupant un espace cubique, permettant ainsi une flexibilité directionnelle dans lequel le texte peut s’écrire, horizontalement de gauche à droite, horizontalement de droite à gauche, verticalement de haut en bas, et verticalement de bas en haut.

Vietnamese language and computers

The Vietnamese language is written with a Latin script with diacritics (accent tones) which requires several accommodations when typing on phone or computers. Software-based systems are a form of writing Vietnamese on phones or computers with software that can be installed on the device or from third-party software such as UniKey. Telex is the oldest input method devised to encode the Vietnamese language with its tones. Other input methods may also include VNI (Number key-based keyboard) and VIQR.

Méthode de saisie

vignette|Saisie logiciellement assistée de caractères chinois. Une méthode de saisie, également méthode d'entrée (de l'input method), est un programme ou un composant d'un système d'exploitation qui permet aux utilisateurs d'un ordinateur de saisir des caractères complexes et des symboles, tels que les caractères chinois, l'alphabet coréen, le système d'écriture japonais ou ceux de langues d'origine indienne (sanskrit, tamoul, tibétain, etc.), à l'aide d'un clavier occidental classique.