registers: subentry indentation different from word--number gap?

registers: subentry indentation different from word--number gap?

[Sanjoy Mahajan]

I don't think the current behavior is a bug, so the following is a
feature request:

With the following fairly minimal example

  \setupregister[index][indicator=no, distance=0.5em]

  \starttext

  ABC\index{x}DEF\index{x+yyz}

  \blank
  \placeindex
  \stoptext

the distance parameter sets (1) the hanging indentation of the 'yyz'
subentry and also (2) the distance between an entry and its pagenumber.
(That's what a look at strc-reg.mkiv shows too.)

It's a matter of taste, but my eye thinks that 0.5em is right for no. 2,
but too small for no. 1 -- whereas the default (1em) is just right for
no. 1 but too large for no. 2.

Thus, could the two dimensions be decoupled and bcome settable
indepently?  Perhaps keep 'distance' for the entry--pagenumber distance
(no. 2), which is its meaning on the wiki, and invent 'subdistance' for
the hanging indent (no. 1)?

I've just realized a cheap hack to do the same, so maybe it's not worth
messing with backward compatability by adding a new parameter.  The hack:

  \def\blah#1{#1\hskip-0.5em}
  \setupregister[index][indicator=no, distance=1em, textcommand=\blah]

-- 
-Sanjoy

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