/usr/share/idzebra-2.0/tab/words-icu.xml is in idzebra-2.0-common 2.0.59-1ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 | <icu_chain locale="en">
<transform rule="[:Control:] Any-Remove"/>
<tokenize rule="l"/>
<transform rule="[[:WhiteSpace:][:Punctuation:]] Remove"/>
<display/>
<casemap rule="l"/>
</icu_chain>
|