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Define number parsing #189

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domenic opened this issue Jan 23, 2018 · 2 comments
Open

Define number parsing #189

domenic opened this issue Jan 23, 2018 · 2 comments

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@domenic
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@domenic domenic commented Jan 23, 2018

There are multiple number parsing algorithms on the platform:

It seems ideal to me if at least some of these could be shared. Maybe just between JSON and CSS, and HTML has extensions to it? I need to audit the potential differences.

@tabatkins
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@tabatkins tabatkins commented Jan 23, 2018

Note: CSS and JSON also allow exponential notation (1e2 for 100, etc) in exactly the same way.

@tabatkins
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@tabatkins tabatkins commented Jan 23, 2018

Ah, I lied - JSON and CSS are not completely identical. Per the JSON.org diagram, JSON does not allow unnecessary leading zeros (02.3 is disallowed) (besides the leading 0 in 0.XXX forms), and JSON doesn't allow a fraction without an integer part (the .XXX form).

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