{"id":1085,"date":"2012-12-25T22:57:12","date_gmt":"2012-12-25T13:57:12","guid":{"rendered":"http:\/\/www.techscore.com\/blog\/?p=1085"},"modified":"2018-11-14T16:33:58","modified_gmt":"2018-11-14T07:33:58","slug":"ruby-%e3%81%a7%e3%83%9e%e3%83%ab%e3%83%81%e3%83%90%e3%82%a4%e3%83%88%e6%96%87%e5%ad%97%e3%81%ab%e5%af%be%e3%81%97%e3%81%a6-ljust-%e3%81%97%e3%81%a6%e3%82%82%e7%b6%ba%e9%ba%97%e3%81%ab%e6%8f%83","status":"publish","type":"post","link":"https:\/\/www.techscore.com\/blog\/2012\/12\/25\/ruby-%e3%81%a7%e3%83%9e%e3%83%ab%e3%83%81%e3%83%90%e3%82%a4%e3%83%88%e6%96%87%e5%ad%97%e3%81%ab%e5%af%be%e3%81%97%e3%81%a6-ljust-%e3%81%97%e3%81%a6%e3%82%82%e7%b6%ba%e9%ba%97%e3%81%ab%e6%8f%83\/","title":{"rendered":"Ruby \u3067\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u306b\u5bfe\u3057\u3066 ljust \u3057\u3066\u3082\u7dba\u9e97\u306b\u63c3\u308f\u306a\u3044\u5834\u5408"},"content":{"rendered":"

\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n

Ruby \u306e String \u30af\u30e9\u30b9\u306b\u306f\u3001ljust, rjust, center \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

\u3072\u3087\u3093\u306a\u3053\u3068\u306a\u3089\u3001ljust \u306a\u3069\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u6a5f\u4f1a\u304c\u3042\u308a\u307e\u3057\u305f\uff08\u5bb6\u8a08\u7c3f\u96c6\u8a08\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u66f8\u3044\u305f\u3060\u3051\u3067\u3059\u304c\uff08\uff3e\uff3e\uff1b\uff09\u3002<\/p>\n

 <\/p>\n

ljust, rjust, center<\/h2>\n

ljust, rjust, center \u306f\u6307\u5b9a\u3057\u305f\u6587\u5b57\u6570\u306b\u306a\u308b\u3088\u3046\u306b\u30d1\u30c7\u30a3\u30f3\u30b0\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n

\u8a00\u8449\u3067\u8aac\u660e\u3059\u308b\u3088\u308a\u3082\u5b9f\u884c\u4f8b\u3092\u898b\u3066\u3044\u305f\u3060\u3044\u305f\u65b9\u304c\u5206\u304b\u308a\u3084\u3059\u3044\u304b\u3068\u601d\u3044\u307e\u3059\u306e\u3067\u3001\u4ee5\u4e0b\u306e\u30b3\u30fc\u30c9\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n

'123'.ljust(10, '*')\r\n'123456'.ljust(10, '*')\r\n'123456789'.ljust(10, '*')<\/pre>\n
\u51fa\u529b\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
\"a\"<\/a><\/p>\n
\u8981\u3059\u308b\u306b\u30c6\u30ad\u30b9\u30c8\u51fa\u529b\u3059\u308b\u6642\u306b\u3001\u6a2a\u5e45\u3092\u7dba\u9e97\u306b\u63c3\u3048\u305f\u3044\u5834\u5408\u306b\u4f7f\u7528\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3067\u3059\u3002<\/p>\n
ljust \u306f\u5de6\u63c3\u3048\u3001rjust \u306f\u53f3\u63c3\u3048\u3001center \u306f\u4e2d\u592e\u63c3\u3048\u3067\u3059\u3002<\/p>\n
\u4ee5\u4e0b\u306e\u5b9f\u884c\u4f8b\u3092\u898b\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
'123'.rjust(10, '*')\r\n'123'.center(10, '*')\r\n'123'.ljust(10, '*')<\/pre>\n
\u51fa\u529b\u306f\u6b21\u306e\u901a\u308a\u3067\u3059\u3002<\/p>\n
\"b\"<\/a><\/p>\n
 <\/p>\n
\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3092\u542b\u3080\u5834\u5408<\/h2>\n
\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3092\u542b\u3080\u5834\u5408\u306f\u3001\u7dba\u9e97\u306b\u6a2a\u5e45\u304c\u63c3\u308f\u306a\u3044\u3067\u3059\u3002<\/p>\n
puts '\u30eb\u30d1\u30f33\u4e16'.ljust(15, '*')\r\nputs '\u9244\u4eba28\u53f7'.ljust(15, '*')\r\nputs '\u30de\u30b8\u30f3\u30ac\u30fcZ'.ljust(15, '*')<\/pre>\n
\u51fa\u529b\u3092\u898b\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u30ac\u30bf\u30ac\u30bf\u306b\u306a\u3063\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002<\/p>\n
\"c\"<\/a><\/p>\n
\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u66f8\u3044\u3066\u307f\u307e\u3057\u305f\u3002<\/p>\n
class String\r\n\r\n  def mb_ljust(width, padding=' ')\r\n    output_width = each_char.map{|c| c.bytesize == 1 ? 1 : 2}.reduce(0, &:+)\r\n    padding_size = [0, width - output_width].max\r\n    self + padding * padding_size\r\n  end\r\n\r\nend<\/pre>\n
\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u306b\u5bfe\u5fdc\u3057\u305f ljust \u3068\u3044\u3046\u3053\u3068\u3067\u3001mb_ljust \u3068\u3044\u3046\u540d\u524d\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u51e6\u7406\u5185\u5bb9\u3068\u3057\u3066\u306f\u3001\u6587\u5b57\u3054\u3068\u306b\u898b\u3066\u3044\u304d\u3001\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u306a\u3089\u6a2a\u5e45 2\u3001\u305d\u308c\u4ee5\u5916\u306f\u6a2a\u5e45 1 \u3068\u3057\u3066\u3001\u8868\u793a\u3055\u308c\u308b\u6642\u306e\u5e45\u3092\u6c42\u3081\u307e\u3059\uff08output_width\uff09\u3002<\/p>\n
\u305d\u3057\u3066\u30d1\u30c7\u30a3\u30f3\u30b0\u306e\u30b5\u30a4\u30ba\u3092\u6c42\u3081\u307e\u3059\uff08padding_size\uff09\u3002<\/p>\n
\u305d\u3057\u3066\u3001\u6700\u5f8c\u306b\u30d1\u30c7\u30a3\u30f3\u30b0\u3057\u305f\u6587\u5b57\u5217\u3092\u8fd4\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
\u203b\u5f15\u6570\u306e padding \u306b\u30de\u30eb\u30c1\u30d0\u30a4\u30c8\u6587\u5b57\u3092\u6e21\u3055\u308c\u308b\u30b1\u30fc\u30b9\u306f\u30b5\u30dd\u30fc\u30c8\u5916\u3067\u3059\u306e\u3067\u3042\u3057\u304b\u3089\u305a\uff08\uff3e\uff3e\uff1b<\/p>\n
\u305d\u308c\u3067\u306f\u5b9a\u7fa9\u3057\u305f mb_ljust \u3092\u4f7f\u7528\u3057\u3066\u307f\u307e\u3059\u3002<\/p>\n
puts '\u30eb\u30d1\u30f33\u4e16'.mb_ljust(15, '*')\r\nputs '\u9244\u4eba28\u53f7'.mb_ljust(15, '*')\r\nputs '\u30de\u30b8\u30f3\u30ac\u30fcZ'.mb_ljust(15, '*')<\/pre>\n
\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3001\u7dba\u9e97\u306b\u6a2a\u5e45\u304c\u63c3\u3044\u307e\u3057\u305f\u3002<\/p>\n
\"d\"<\/a><\/p>\n
\u203b\u5f53\u7136\u306a\u304c\u3089\u7b49\u5e45\u30d5\u30a9\u30f3\u30c8\u3067\u8868\u793a\u3059\u308b\u3053\u3068\u3092\u524d\u63d0\u3068\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
\u3053\u3093\u306b\u3061\u306f\u3001\u9234\u6728\u3067\u3059\u3002<\/p>\n
Ruby \u306e String \u30af\u30e9\u30b9\u306b\u306f\u3001ljust, rjust, center \u3068\u3044\u3046\u30e1\u30bd\u30c3\u30c9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n
\u3072\u3087\u3093\u306a\u3053\u3068\u306a\u3089\u3001ljust \u306a\u3069\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u6a5f\u4f1a\u304c\u3042\u308a\u307e\u3057\u305f\uff08\u5bb6\u8a08\u7c3f\u96c6\u8a08\u30b9\u30af\u30ea\u30d7\u30c8\u3092\u66f8\u3044\u305f\u3060\u3051\u3067\u3059\u304c\uff08\uff3e\uff3e\uff1b\uff09\u3002
\u7d9a\u304d\u3092\u8aad\u3080...<\/a><\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[18],"tags":[24],"_links":{"self":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1085"}],"collection":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/comments?post=1085"}],"version-history":[{"count":1,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1085\/revisions"}],"predecessor-version":[{"id":17997,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/posts\/1085\/revisions\/17997"}],"wp:attachment":[{"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/media?parent=1085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/categories?post=1085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.techscore.com\/blog\/wp-json\/wp\/v2\/tags?post=1085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}