Smart Common Input Method

Smart Common Input Method

Stable release	1.4.18 / July 31, 2017; 6 years ago (2017-07-31)
Written in	C
Type	Input method
License	GNU GPL, GNU LGPL
Website	github.com/scim-im/scim

The Smart Common Input Method (SCIM) is a platform for inputting more than thirty languages on computers, including Chinese-Japanese-Korean style character languages (CJK), and many European languages. It is used for POSIX-style operating systems including Linux and BSD. Its purposes are to provide a simple and powerful common interface for users from any country, and to provide a clear architecture for programming, so as to reduce time required to develop individual input methods.

Goals

The main goals of the SCIM project include:

• To act as a unified frontend for current available input method libraries. Bindings to uim and m17n [1] library are available (as of August 2007).
• To act as a language engine of IIIMF (an input method framework).
• To support as many input method protocols/interfaces as existing and in common use.
• To support multiple operating systems. (Currently, only POSIX-style operating systems are available.)

Some of the input methods managed by SCIM

Architecture

SCIM was originally written in the C++ language but has moved to pure C since 1.4.14.^[1] It abstracts the input method interface to several classes and attempts to simplify the classes and make them more independent from each other. With the simpler and more independent interfaces, developers can write their own input methods in fewer lines of code.

SCIM is a modularized IM platform, and as such, components can be implemented as dynamically loadable modules, thus can be loaded during runtime at will. For example, input methods written for SCIM could be IMEngine modules, and users can use such IMEngine modules combined with different interface modules (FrontEnd) in different environments without rewrite or recompile of the IMEngine modules, reducing the compile time or development time of the project.

SCIM is a high-level library, similar to XIM or IIIMF; however, SCIM claims to be simpler than either of those IM platforms. SCIM also claims that it can be used alongside XIM or IIIMF. SCIM can also be used to extend the input method interface of existing application toolkits, such as GTK+, Qt and Clutter via IMmodules.^[2]

Related projects

SKIM is a separate project aimed at integrating SCIM more tightly into the K Desktop Environment, by providing a GUI panel (named scim-panel-kde as an alternative to scim-panel-gtk), a KConfig config module and setup dialogs for itself and the SCIM module libscim. It also has its own plugin system which supports on-demand loadable actions.

t-latn-pre and t-latn-post are two input methods that provide an easy way for composing accented characters, either by preceding regular characters with diacritic marks (in the case of t-latn-pre), or by adding the marks subsequently (in the case of t-latn-post). Their main advantage is the large number of composed characters from different languages that can be entered this way, rendering it unnecessary to install, for example, separate keyboard layouts.^[3] These input methods are available for SCIM through the M17n library.

See also

• Input method
• IBus
• List of input methods for UNIX platforms
• uim

References

External links

• m17n Multilingualization

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