[Rd] pre summary: mapping of colornames into hsv?

[Jens Oehlschlägel-Akiyoshi]

etc/colors.big doesn't do the job currently, as:

  colors.big maps 455 names to rgb in S syntax
  rgb.txt maps 657 names to rgb in C syntax, but unlike colors() it has
mixed upper and lower case

The C source has the information twice
  rgb.c maps 657 names to rgb (mixed upper and lower case)
  graphics.c maps 657 names tp colorstrings (lower case only)

internal name2col() and R colors() accesses those in graphics.c

I tend to create a R representation which copies the info from graphics.c,
unless someone plans to export
internal name2col() to become an official R function, which of course would
be a less redundant solution.

Regards


Jens


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