Support to return enumerator when no block given

ksss · ksss · commit 4ee79a877728 · 2017-03-15T16:58:29.000+09:00
diff --git a/mrblib/string.rb b/mrblib/string.rb
@@ -10,6 +10,7 @@ class String
   #
   # ISO 15.2.10.5.15
   def each_line(rs = "\n", &block)
+    return to_enum(:each_line, rs, &block) unless block
     return block.call(self) if rs.nil?
     rs = rs.to_str
     offset = 0

Original file line number	Diff line number	Diff line change
`@@ -10,6 +10,7 @@ class String`
`10`	`10`	`#`
`11`	`11`	`# ISO 15.2.10.5.15`
`12`	`12`	`def each_line(rs = "\n", &block)`
	`13`	`+ return to_enum(:each_line, rs, &block) unless block`
`13`	`14`	`return block.call(self) if rs.nil?`
`14`	`15`	`rs = rs.to_str`
`15`	`16`	`offset = 0`