(html_element -> [html_element]) -> [html_element] -> [html_element]
Map a function over a list and concatenate the results.
Map a function over all the elements of a container and concatenate the resulting lists.
Same as >>=, but with the arguments interchanged.
Extend a generic MonadPlus transformation by a type-specific case
This generalizes the list-based filter function.
Make a generic monadic transformation for MonadPlus; use "const mzero" (i.e., failure) instead of return as default.
Catches any expection thrown by a CGI action, and uses the given exception handler if an exception is thrown.
Deprecated: Use catchCGI instead.
Map each element of a structure to an action, evaluate these actions from left to right, and ignore the results.
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