Associate a GtkSourceLanguage with the buffer. If language is
not-NULL and syntax highlighting is enabled (see gtk_source_buffer_set_highlight_syntax()),
the syntax patterns defined in language will be used to highlight the text
contained in the buffer. If language is NULL, the text contained in the
buffer is not highlighted.
The buffer holds a reference to language.
Associate a GtkSourceLanguage with the buffer. If language is not-NULL and syntax highlighting is enabled (see gtk_source_buffer_set_highlight_syntax()), the syntax patterns defined in language will be used to highlight the text contained in the buffer. If language is NULL, the text contained in the buffer is not highlighted. The buffer holds a reference to language.