A QtCreator-Plugin that automatically switch your IME according to the content of current line.

Create a build directory and run

cmake -DCMAKE_PREFIX_PATH=<path_to_qtcreator> -DCMAKE_BUILD_TYPE=RelWithDebInfo <path_to_plugin_source>
cmake --build .

where <path_to_qtcreator> is the relative or absolute path to a Qt Creator build directory, or to a combined binary and development package (Windows / Linux), or to the Qt Creator.app/Contents/Resources/ directory of a combined binary and development package (macOS), and <path_to_plugin_source> is the relative or absolute path to this plugin directory.

Run a compatible Qt Creator with the additional command line argument

-pluginpath <path_to_plugin>

where <path_to_plugin> is the path to the resulting plugin library in the build directory (<plugin_build>/lib/qtcreator/plugins on Windows and Linux, <plugin_build>/Qt Creator.app/Contents/PlugIns on macOS).

You might want to add -temporarycleansettings (or -tcs) to ensure that the opened Qt Creator instance cannot mess with your user-global Qt Creator settings.

When building and running the plugin from Qt Creator, you can use

-pluginpath "%{buildDir}/lib/qtcreator/plugins" -tcs

on Windows and Linux, or

-pluginpath "%{buildDir}/Qt Creator.app/Contents/PlugIns" -tcs

for the Command line arguments field in the run settings.