app/notes/20170603-0601.md
Straight Lines
straight-lines
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There are a ton of straight lines commonly seen in English text.
- `‐` - the hyphen, used to join breaks within words or compound words
- `–` - the en-dash, used for spans of numbers or compound adjectives
- `—` - the em-dash, used in place of colons, commas, and parentheses
- `_` - the underscore, originally used to underline words by typewriters
- `|` - the vertical bar of many uses.
This doesn't even include the dozens of singular lines [available in Unicode](http://unicodelookup.com/#hyphen/1).