{"id":2862,"date":"2010-11-13T18:27:51","date_gmt":"2010-11-13T22:27:51","guid":{"rendered":"http:\/\/mjtsai.com\/blog\/?p=2862"},"modified":"2010-11-13T18:27:53","modified_gmt":"2010-11-13T22:27:53","slug":"abusing-nspredicate","status":"publish","type":"post","link":"https:\/\/mjtsai.com\/blog\/2010\/11\/13\/abusing-nspredicate\/","title":{"rendered":"Abusing NSPredicate"},"content":{"rendered":"<p><a href=\"http:\/\/funwithobjc.tumblr.com\/post\/1553469975\/abusing-nspredicate\">Dave DeLong<\/a>:<\/p>\n<blockquote cite=\"http:\/\/funwithobjc.tumblr.com\/post\/1553469975\/abusing-nspredicate\"><p>One of the best things about <code>NSPredicate<\/code> is its parsing engine.  Given a well-formatted <code>NSString<\/code>, <code>NSPredicate<\/code> will turn it into a tree of <code>NSCompoundPredicate<\/code> and <code>NSComparisonPredicate<\/code> objects.  This can be used to our advantage.  If we have a string that represent some boolean expression, we can tap <code>NSPredicate<\/code> to parse it for us and give us back an organized syntax tree.<\/p><\/blockquote>","protected":false},"excerpt":{"rendered":"<p>Dave DeLong: One of the best things about NSPredicate is its parsing engine. Given a well-formatted NSString, NSPredicate will turn it into a tree of NSCompoundPredicate and NSComparisonPredicate objects. This can be used to our advantage. If we have a string that represent some boolean expression, we can tap NSPredicate to parse it for us [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"apple_news_api_created_at":"","apple_news_api_id":"","apple_news_api_modified_at":"","apple_news_api_revision":"","apple_news_api_share_url":"","apple_news_coverimage":0,"apple_news_coverimage_caption":"","apple_news_is_hidden":false,"apple_news_is_paid":false,"apple_news_is_preview":false,"apple_news_is_sponsored":false,"apple_news_maturity_rating":"","apple_news_metadata":"\"\"","apple_news_pullquote":"","apple_news_pullquote_position":"","apple_news_slug":"","apple_news_sections":"\"\"","apple_news_suppress_video_url":false,"apple_news_use_image_component":false,"footnotes":""},"categories":[4],"tags":[],"class_list":["post-2862","post","type-post","status-publish","format-standard","hentry","category-programming-category"],"apple_news_notices":[],"_links":{"self":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/2862","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/comments?post=2862"}],"version-history":[{"count":1,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/2862\/revisions"}],"predecessor-version":[{"id":2863,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/posts\/2862\/revisions\/2863"}],"wp:attachment":[{"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/media?parent=2862"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/categories?post=2862"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mjtsai.com\/blog\/wp-json\/wp\/v2\/tags?post=2862"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}