　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 sh-3ll

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DIR:/opt/alt/ruby18/share/ri/1.8/system/Regexp/

Current File : //opt/alt/ruby18/share/ri/1.8/system/Regexp/union-c.yaml

--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Return a <tt>Regexp</tt> object that is the union of the given <em>pattern</em>s, i.e., will match any of its parts. The <em>pattern</em>s can be Regexp objects, in which case their options will be preserved, or Strings. If no patterns are given, returns <tt>/(?!)/</tt>.
- !ruby/struct:SM::Flow::VERB 
  body: "   Regexp.union                         #=&gt; /(?!)/\n   Regexp.union(&quot;penzance&quot;)             #=&gt; /penzance/\n   Regexp.union(&quot;a+b*c&quot;)                #=&gt; /a+b*c/\n   Regexp.union(&quot;skiing&quot;, &quot;sledding&quot;)   #=&gt; /skiing|sledding/\n   Regexp.union([&quot;skiing&quot;, &quot;sledding&quot;]) #=&gt; /skiing|sledding/\n   Regexp.union(/dogs/, /cats/i)        #=&gt; /(?-mix:dogs)|(?i-mx:cats)/\n"
full_name: Regexp::union
is_singleton: true
name: union
params: |
  Regexp.union(pat1, pat2, ...)            => new_regexp
  Regexp.union(pats_ary)                   => new_regexp

visibility: public