Input methods
From Gentoo Wiki
An input method is a way to use any data as input, for example to use a standard Latin keyboard for writing Chinese characters. Gentoo has several input method frameworks available:
- fcitx — supporting multiple languages and IMEs, mostly for Simplified Chinese, but also other scripts
- IBus — supporting multiple languages and IMEs
- SCIM — supporting multiple languages and IMEs
- uim — supporting multiple languages and IMEs
The gentoo-zh overlay includes some more packages (and not just for Chinese).
On GTK based applications, the key sequence for hexadecimal Unicode input is Ctrl+Shift+u+<hex digit>. As an example, the unicode character ✔ which has unicode number U+2714 can be written as Ctrl+Shift+u+2714+ENTER, being rendered as ✔. IBus is needed for support in other applications.