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* (lib/pp.rb, lib/prettyprint.rb): define seplist in PP::PPMethods

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instead of PrettyPrint.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6032 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
akr 2004-03-27 01:46:05 +00:00
parent 3952564936
commit 4d664a098d
3 changed files with 51 additions and 39 deletions
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39
lib/prettyprint.rb
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@ -94,32 +94,6 @@ non-string formatting, etc.
--- flush
outputs buffered data.
--- seplist(list[, separator_proc[, iter_method]]) {|elt| ... }
adds a separated list.
The list is separated by comma with breakable space, by default.
seplist iterates the ((|list|)) using ((|iter_method|)).
It yields each object to the block given for seplist.
The procedure ((|separator_proc|)) is called between each yields.
If the iteration is zero times, ((|separator_proc|)) is not called at all.
If ((|separator_proc|)) is nil or not given,
(({lambda { comma_breakable }})) is used.
If ((|iter_method|)) is not given, (({:each})) is used.
For example, following 3 code fragments has similar effect.
q.seplist([1,2,3]) {|v| xxx v }
q.seplist([1,2,3], lambda { comma_breakable }, :each) {|v| xxx v }
xxx 1
q.comma_breakable
xxx 2
q.comma_breakable
xxx 3
--- first?
first? is obsoleted at 1.8.2.
@ -187,19 +161,6 @@ class PrettyPrint
@group_stack.last
end
def seplist(list, sep=nil, iter_method=:each)
sep ||= lambda { comma_breakable }
first = true
list.__send__(iter_method) {|*v|
if first
first = false
else
sep.call
end
yield(*v)
}
end
def first?
warn "PrettyPrint#first? is obsoleted at 1.8.2."
current_group.first?