I am almost sure this question was already asked somewhere (I couldn't find it). Still why my em dash and the word proceeding it are typeset out of margins?

enter image description here

the source is


Has it something to do with the hyphenation of the word proliferation?

I am using the package microtype if it matters and I tried what suggested in this answer (although the problem is slightly different).

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    I belive that this is a "feature" of the microtype package. – Peter Grill Mar 5 '14 at 4:54
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    was it this one: How can I make my dash work with microtype? – cmhughes Mar 5 '14 at 5:18
  • @cmhughes Mmm, maybe But then according to the answer I need to define a new command \Dash while I am not using any command but ---. Any way around? – Francesco Mar 5 '14 at 5:21
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    Without seeing the complete paragraph it's next to impossible to diagnose, let alone remedy, the situation. The result you currently have, as unattractive as it is, is probably the least-bad solution for the paragraph. Do you have some very long and/or unbreakable words elsewhere in the paragraph? Please consider posting an MWE rather than a screenshot. – Mico Mar 5 '14 at 6:10
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    @Francesco -- looking at the bit out output you show, even if the em dash goes to a new line, the line ending with "proliferation" will be overfull, so it would probably be better to allow hyphenation within that word. the question cited by cmhughes gives the appropriate method for that. and no, there really isn't any other practical way than defining a new command. – barbara beeton Mar 5 '14 at 21:40

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