En-dash for number ranges

[samhenrigold]

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I was planning to add a line in punctuation.js to replace a hyphen between two numbers without a space with an en-dash (14-31 days → "14–31 days").

It looks like for ranges with a space, we're expecting it to be replaced with an em-dash. I'm unsure if this is by design but the test HTML (and the Chicago style) calls for an en-dash. Should this be corrected or is there a different rule for ranges with spaces that I'm missing?

Thanks!

[danielhaim1]

That sounds interesting, I would like to investigate this further. Found some very nice notes here too, I'm adding some others below:

Dash in Dates & Numbers

• Between times: 1200–1600
• Between times: 6 am–8 am
• Between days: Monday–Friday
• Between dates: 12–15 October
• Between months: June–August
• Between years: 1967–1969

Dash in any range:

• Pages 2–4
• 100–150 people

Do's and Don'ts

Don't use "From" or "To"

Don't use the word "from" or "to" if you're using a dash to show a range. If you're not using a dash, then you can use "from" and "to." Don't mix these conventions.

• Correct: Lunch break is 1200–1300.
• Correct: Lunch break is from 1200 to 1300.
• Incorrect: Lunch break is from 1200–1300.

Another example:

• Incorrect: Nelson Mandela was president of South Africa from 1994–1999.
• Correct: Nelson Mandela was president of South Africa from 1994 to 1999.
• Incorrect: Homer eats between 60–75 donuts per month.
• Correct: Homer eats between 60 and 75 donuts per month.

[samhenrigold]

I’ve been referencing this blog post a lot lately, thin spaces with an en-dash looks nice. https://clagnut.com/blog/2419

[danielhaim1]

That's a great resource. How can I help implement this?