1 files changed, 14 insertions, 0 deletions
diff --git a/src/WWW/HW.hs b/src/WWW/HW.hs
new file mode 100644
index 0000000..0740fe6
--- /dev/null
+++ b/src/WWW/HW.hs
@@ -0,0 +1,14 @@
+module WWW.HW
+    ( removeEnv
+    , removeSolutions
+    ) where
+
+import Prolog
+
+import Text.LaTeX.Base.Syntax
+
+removeEnv :: (String -> Bool) -> LaTeX -> LaTeX
+removeEnv p = texmap (\case { TeXEnv s _ _ -> p s; _ -> False }) $ pure mempty
+
+removeSolutions :: LaTeX -> LaTeX
+removeSolutions = removeEnv (== "solution")