Use this function to escape the following characters: \n, \r, \t and \.
Free the resources allocated by GtkSourceView. For example it unrefs the singleton objects.
Initializes the GtkSourceView library (e.g. for the internationalization).
Use this function before Source.searchSettingsSetSearchText, to unescape the following sequences of characters: \n, \r, \t and \\. The purpose is to easily write those characters in a search entry.