　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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sh-3ll 1.0

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

Current File : //opt/alt/ruby18/share/ri/1.8/system/String/scan-i.yaml

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

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Both forms iterate through <em>str</em>, matching the pattern (which may be a <tt>Regexp</tt> or a <tt>String</tt>). For each match, a result is generated and either added to the result array or passed to the block. If the pattern contains no groups, each individual result consists of the matched string, <tt>$&amp;</tt>. If the pattern contains groups, each individual result is itself an array containing one entry per group.
- !ruby/struct:SM::Flow::VERB 
  body: "   a = &quot;cruel world&quot;\n   a.scan(/\\w+/)        #=&gt; [&quot;cruel&quot;, &quot;world&quot;]\n   a.scan(/.../)        #=&gt; [&quot;cru&quot;, &quot;el &quot;, &quot;wor&quot;]\n   a.scan(/(...)/)      #=&gt; [[&quot;cru&quot;], [&quot;el &quot;], [&quot;wor&quot;]]\n   a.scan(/(..)(..)/)   #=&gt; [[&quot;cr&quot;, &quot;ue&quot;], [&quot;l &quot;, &quot;wo&quot;]]\n"
- !ruby/struct:SM::Flow::P 
  body: "And the block form:"
- !ruby/struct:SM::Flow::VERB 
  body: "   a.scan(/\\w+/) {|w| print &quot;&lt;&lt;#{w}&gt;&gt; &quot; }\n   print &quot;\\n&quot;\n   a.scan(/(.)(.)/) {|x,y| print y, x }\n   print &quot;\\n&quot;\n"
- !ruby/struct:SM::Flow::P 
  body: <em>produces:</em>
- !ruby/struct:SM::Flow::VERB 
  body: "   &lt;&lt;cruel&gt;&gt; &lt;&lt;world&gt;&gt;\n   rceu lowlr\n"
full_name: String#scan
is_singleton: false
name: scan
params: |
  str.scan(pattern)                         => array
  str.scan(pattern) {|match, ...| block }   => str

visibility: public