GML is a user interface markup language. It is a declarative language for designing user interface for GTK.
gml - translator that gets the description of the user interface written in the GML language and translates into a C code with using the GTK libraries.
dnf install automake libtool bison flex gtk3-develapt install git automake bison flex libgtk-3-dev libtool-bingit clone https://github.com/trifonovkv/gml.git
cd gml
make -f Makefile.dist
./configure
make./src/gml./src/example/window/window
./src/example/header_bar/header_bar
./src/example/scrolled_window/scrolled_window