Dashes can occur in different lengths. As far as this difference is recognized, they are represented as the following hexadecimal Unicode entities:

Sign Entity Description
- U+002D Hyphen/syllable hyphen/minus character (HYPHEN-MINUS)
U+2012 Numeral dash (FIGURE DASH)
U+2013 En dash (EN DASH)
U+2014 Em dash (EM DASH)

If it is not possible to distinguish the length of the dash, it shall be recorded as an en dash.