00_file

File input

TeX hyphenation patterns look like this:

% this is a comment
\patterns{
pattern  % could have comments on lines
another
maybe many words per line}  % that brace ends the patterns
\hyphenation{ % and now the exceptions
word
anoth-er
}

assert read_patterns(r'''

\patterns{
1ba alous1
1be % foobar
ch2r}
\hyphenation{
saippua-kauppias
}
'''.splitlines()) == (['1ba', 'alous1', '1be', 'ch2r'], ['saippua-kauppias'])