Liblouis User's and Programmer's Manual
2.6.2 Emphasis indicators ¶
In order to understand the capabilities of Liblouis for emphasis handling we have to look at the different kinds of indicators that exist and the different scopes. There are various indicators to mark the beginning of emphasis. Where the emphasis ends depends on the type of start indicator (the scope) and on the possible occurrence of an end indicator. Sometimes an indicator appears in the middle of an emphasized part in order to change the current scope.
Which indicators Liblouis uses in which situation depends on the specific combination of indicators that are defined in the table.