{"id":2884,"date":"2017-02-01T06:00:30","date_gmt":"2017-02-01T04:00:30","guid":{"rendered":"http:\/\/www.glc.us.es\/~jalonso\/exercitium\/?p=2884"},"modified":"2017-02-08T07:26:15","modified_gmt":"2017-02-08T05:26:15","slug":"subrayado-de-un-caracter","status":"publish","type":"post","link":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/subrayado-de-un-caracter\/","title":{"rendered":"Subrayado de un car\u00e1cter"},"content":{"rendered":"<p>Definir el procedimiento<\/p>\n<pre lang=\"text\">\n   subraya :: String -> Char -> IO ()\n<\/pre>\n<p>tal que (subraya cs c) escribe la cadena cs y debajo otra subrayando las ocurrencias de c. Por ejemplo,<\/p>\n<pre lang=\"text\">\n   \u03bb> subraya \"Salamanca es castellana\" 'a'\n   Salamanca es castellana\n    ^ ^ ^  ^     ^     ^ ^\n   \u03bb> subraya \"Salamanca es castellana\" 'n'\n   Salamanca es castellana\n         ^              ^ \n   \u03bb> subraya \"Salamanca es castellana\" ' '\n   Salamanca es castellana\n            ^  ^          \n<\/pre>\n<h4>Soluciones<\/h4>\n<pre lang=\"haskell\">\n-- 1\u00aa definici\u00f3n\nsubraya :: String -> Char -> IO ()\nsubraya cs c = do\n  putStrLn cs\n  putStrLn (subrayado cs c)\n\nsubrayado :: String -> Char -> String\nsubrayado cs c = map procesa cs\n  where procesa x | x == c    = '^'\n                  | otherwise = ' '\n\n-- 2\u00aa definici\u00f3n\nsubraya2 :: String -> Char -> IO ()\nsubraya2 cs c = \n  mapM_ putStrLn [cs, subrayado cs c]\n<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Definir el procedimiento subraya :: String -> Char -> IO () tal que (subraya cs c) escribe la cadena cs y debajo otra subrayando las ocurrencias de c. Por ejemplo, \u03bb> subraya \u00abSalamanca es castellana\u00bb &#8216;a&#8217; Salamanca es castellana ^ ^ ^ ^ ^ ^ ^ \u03bb> subraya \u00abSalamanca es castellana\u00bb &#8216;n&#8217; Salamanca es castellana&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"footnotes":"","_jetpack_memberships_contains_paid_content":false},"categories":[5],"tags":[311,10,364,11,312],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/2884"}],"collection":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/comments?post=2884"}],"version-history":[{"count":3,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/2884\/revisions"}],"predecessor-version":[{"id":2910,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/posts\/2884\/revisions\/2910"}],"wp:attachment":[{"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/media?parent=2884"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/categories?post=2884"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.glc.us.es\/~jalonso\/exercitium\/wp-json\/wp\/v2\/tags?post=2884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}