From:  John Lenz <>
Date:  12 Feb 2015 07:19:27 Hong Kong Time

Re: what does "column" mean?


Hmmm, this limits its general applicability but at this point it should be
what the browser interprets as columns, which would be code units.  If you
propose some text for the spec, I'll add the clarification.

On Sat, Dec 13, 2014 at 6:09 PM, Brian Slesinsky 

> The sourcemap spec is defined in terms of column and line numbers, but it
> doesn't define what a column means. Is this measured in Unicode code points
> or 16-bit code units?
> If implementors aren't thinking about this, I'd guess that we're working in
> code units by default, at least for JavaScript and Java.
> What do compilers do?
> - Brian
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