Table misalignment when there is a value with an ampersand

[valentas-kurauskas]

(Originally posted in https://github.com/IRkernel/IRkernel/issues/447.)

With R backend data.frame(letter=c("A", "B&C", "D"), number=c(1000,2,30))

Displays something like this:

letter	value
A	1000
A&B	2
C	30

The misaligned cell in html appears as <span style="white-space:pre-wrap"> 2</span>

[flying-sheep]

OK, so the pre-wrap gets introduced by this function

all matrixes/data.frames go through repr_matrix_generic

the first thing done is ellip_limit_arr(x), which introduces those spaces:

> repr:::ellip_limit_arr(data.frame(letter=c("A", "B&C", "D"), number=c(1000,2,30)))
  letter number
1 "A  "  "1000"
2 "B&C"  "   2"
3 "D  "  "  30"