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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
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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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5
ChangeLog
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@ -1,3 +1,8 @@
Sat Mar 27 10:40:48 2004 Tanaka Akira <akr@m17n.org>
* (lib/pp.rb, lib/prettyprint.rb): define seplist in PP::PPMethods
instead of PrettyPrint.
Sat Mar 27 01:47:09 2004 NAKAMURA, Hiroshi <nakahiro@sarion.co.jp>
* lib/logger.rb: trim tail space of each line. no user visible change.

46
lib/pp.rb
View file

@ -88,6 +88,32 @@ PP#pp to print the object.
text ','
breakable
--- 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
= Object
--- pretty_print(pp)
is a default pretty printing method for general objects.
@ -201,6 +227,19 @@ class PP < PrettyPrint
breakable
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 pp_object(obj)
object_address_group(obj) {
seplist(obj.pretty_print_instance_variables, lambda { text ',' }) {|v|
@ -603,4 +642,11 @@ if __FILE__ == $0
end
end
end
class PPSingleLineTest < Test::Unit::TestCase
def test_hash
assert_equal("{1=>1}", PP.singleline_pp({ 1 => 1}, '')) # [ruby-core:02699]
assert_equal("[1#{', 1'*99}]", PP.singleline_pp([1]*100, ''))
end
end
end

39
lib/prettyprint.rb
View file

@ -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?