Generating core documentation

Following the discussion about the problems of the documentation for
ruby core
available on www.ruby-doc.org, I’ve tried to understand exactly which of
the
files in the ruby source distribution contain classes/methods of the
core.
From my investigation, these files are:

numeric.c
gc.c
io.c
re.c
range.c
variable.c
dir.c
signal.c
marshal.c
error.c
compar.c
enum.c
file.c
eval.c
random.c
hash.c
math.c
pack.c
prec.c
time.c
process.c
object.c
sprintf.c
parse.y
array.c
version.c
string.c
bignum.c
struct.c
class.c

NOTE: the methods I used to select the files which belong to the core
from
those which don’t are extremely naive, so there can be some missing or
extra
files (in particular, the following files may be missing: dln.c,
dmydln.c,
dmyext.c, inits.c, lex.c, main.c, parse.c, regex.c, ruby.c, st.c,
util.c. I
looked at them, but they didn’t seem to contain ruby classes or methods,
and
no class in the generated documentation pointed to them, so I decided to
remove them).

To get the documentation for only the core of ruby, download the ruby
source
from Download Ruby, extract it and run rdoc on
the
files mentioned above (they’re only in the toplevel directory).

Stefano