[Docutils-develop] [docutils:bugs] #444 Table column width rounding can result in uneven column widths

[Alex F. <afo...@us...>]

And if it's necessary for the width to be an integer for some reason, then an alternative fix could be to keep track of the accumulated error, and round up or down depending on which would minimize the error.  In this case, the column widths should get set to 13, 12, 13, 12, etc. which would distribute the error across the columns, instead of having the last column off by such a large amount.  


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** [bugs:#444] Table column width rounding can result in uneven column widths**

**Status:** open
**Created:** Thu Feb 10, 2022 06:13 AM UTC by Alex Forencich
**Last Updated:** Thu Feb 10, 2022 06:13 AM UTC
**Owner:** nobody


In the HTML generated for a table with 8 equal-width columns, the column widths in the generated colgroups are all rounded up from 12.5% to 13%, resulting in the last column being much too narrow (0.5 * 7 = 3.5, 3.5/12.5 = 0.28, so the accumulated error is almost 30%).  The fix would be to revise the rounding in `depart_colspec` in `_html_base.py` to produce at least one decimal place, instead of rounding to the nearest integer.


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