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| author | Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com> | 2015-06-28 22:28:00 +0200 |
|---|---|---|
| committer | Łukasz Hanuszczak <lukasz.hanuszczak@gmail.com> | 2015-06-30 22:37:49 +0200 |
| commit | 311b3cc529097ef83a8212439dafcabb86534c62 (patch) | |
| tree | d83b2cc59eb4acf4b99822e2f775945091be88b0 /haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs | |
| parent | 4a6b6c18dbb6542b64f13e4f51cc0447df15a175 (diff) | |
Prevent source parser from throwing exception when lexing fails.
Diffstat (limited to 'haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs')
| -rw-r--r-- | haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs b/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs index 6e195dba..bab5ba0a 100644 --- a/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs +++ b/haddock-api/src/Haddock/Backends/Hyperlinker/Parser.hs @@ -63,7 +63,9 @@ chunk str@(c:_) chunk str | "--" `isPrefixOf` str = chunk' $ spanToNewline str | "{-" `isPrefixOf` str = chunk' $ chunkComment 0 str - | otherwise = chunk' $ head $ lex str + | otherwise = case lex str of + (tok:_) -> chunk' tok + [] -> [str] where chunk' (c, rest) = c:(chunk rest) |