0

所以我正在做一个涉及抓取数据论坛（不是垃圾邮件）的小项目。

我有一个 JS JSON 数组的问题，我不知道如何使它在 ruby​​ 中可读。

这是我从论坛中提取的示例。

\n    //<!--\n            require([\"main\"], function() {\n            require([\"PoE/Item/DeferredItemRenderer\"], function(R) { (new R([[0,{\"verified\":false,\"w\":2,\"h\":3,\"icon\":\"http:\\/\\/webcdn.pathofexile.com\\/image\\/Art\\/2DItems\\/Armours\\/BodyArmours\\/BodyStrDexInt1C.png?scale=1&v=5a4eb9d863bef835aa3d9cc9224f51a51\",\"support\":true,\"league\":\"Hardcore\",\"sockets\":[{\"group\":0,\"attr\":\"S\"},{\"group\":0,\"attr\":\"I\"},{\"group\":0,\"attr\":\"S\"},{\"group\":0,\"attr\":\"I\"},{\"group\":1,\"attr\":\"D\"},{\"group\":2,\"attr\":\"I\"}],\"name\":\"Corruption Ward\",\"typeLine\":\"Vaal Regalia\",\"identified\":true,\"properties\":[{\"name\":\"Quality\",\"values\":[[\"+20%\",1]],\"displayMode\":0},{\"name\":\"Energy Shield\",\"values\":[[\"605\",1]],\"displayMode\":0}],\"requirements\":[{\"name\":\"Level\",\"values\":[[\"68\",0]],\"displayMode\":0},{\"name\":\"Int\",\"values\":[[\"194\",0]],\"displayMode\":1}],\"explicitMods\":[\"+50 to Intelligence\",\"60% increased Energy Shield\",\"+140 to maximum Energy Shield\"],\"frameType\":2,\"socketedItems\":[]},[]],[1,{\"verified\":true,\"w\":2,\"h\":2,\"icon\":\"http:\\/\\/webcdn.pathofexile.com\\/image\\/Art\\/2DItems\\/Armours\\/Helmets\\/HelmetInt4.png?scale=1&v=0f230458eaf985d877912eae780a91fc1\",\"support\":true,\"league\":\"Hardcore\",\"sockets\":[{\"group\":0,\"attr\":\"D\"},{\"group\":0,\"attr\":\"S\"},{\"group\":1,\"attr\":\"I\"},{\"group\":1,\"attr\":\"I\"}],\"name\":\"Dusk Visage\",\"typeLine\":\"Royal Circlet\",\"identified\":true,\"properties\":[{\"name\":\"Quality\",\"values\":[[\"+20%\",1]],\"displayMode\":0},{\"name\":\"Energy Shield\",\"values\":[[\"261\",1]],\"displayMode\":0}],\"requirements\":[{\"name\":\"Level\",\"values\":[[\"65\",0]],\"displayMode\":0},{\"name\":\"Int\",\"values\":[[\"138\",0]],\"displayMode\":1}],\"explicitMods\":[\"+22 to Intelligence\",\"43% increased Energy Shield\",\"+61 to maximum Energy Shield\",\"22% increased Rarity of Items found\",\"+20% to Fire Resistance\",\"14% increased Block and Stun Recovery\"],\"frameType\":2,\"socketedItems\":[]},[]],[2,{\"verified\":false,\"w\":2,\"h\":3,\"icon\":\"http:\\/\\/webcdn.pathofexile.com\\/image\\/Art\\/2DItems\\/Armours\\/Shields\\/ShieldStrInt5.png?scale=1&v=823818e9cfc86e3ea4c642b97695932c1\",\"support\":true,\"league\":\"Hardcore\",\"sockets\":[{\"group\":0,\"attr\":\"S\"},{\"group\":1,\"attr\":\"I\"},{\"group\":2,\"attr\":\"I\"}],\"name\":\"Cataclysm Rock\",\"typeLine\":\"Angelic Kite Shield\",\"identified\":true,\"properties\":[{\"name\":\"Quality\",\"values\":[[\"+20%\",1]],\"displayMode\":0},{\"name\":\"Chance to Block\",\"values\":[[\"24%\",0]],\"displayMode\":0},{\"name\":\"Armour\",\"values\":[[\"322\",1]],\"displayMode\":0},{\"name\":\"Energy Shield\",\"values\":[[\"324\",1]],\"displayMode\":0}],\"requirements\":[{\"name\":\"Level\",\"values\":[[\"55\",0]],\"displayMode\":0},{\"name\":\"Str\",\"values\":[[\"70\",0]],\"displayMode\":1},{\"name\":\"Int\",\"values\":[[\"70\",0]],\"displayMode\":1}],\"implicitMods\":[\"+24% to all Elemental Resistances\"],\"explicitMods\":[\"108% increased Armour and Energy Shield\",\"+92 to maximum Energy Shield\",\"+37% to Cold Resistance\",\"+7% to Lightning Resistance\",\"12% increased Block and Stun Recovery\"],\"frameType\":2,\"socketedItems\":[]},[]],[3,{\"verified\":true,\"w\":2,\"h\":1,\"icon\":\"http:\\/\\/webcdn.pathofexile.com\\/image\\/Art\\/2DItems\\/Belts\\/Belt1.png?scale=1&v=a40ff49a65beb9e722af0f85159432f11\",\"support\":true,\"league\":\"Hardcore\",\"sockets\":[],\"name\":\"Rage Snare\",\"typeLine\":\"Rustic Sash\",\"identified\":true,\"requirements\":[{\"name\":\"Level\",\"values\":[[\"39\",0]],\"displayMode\":0}],\"implicitMods\":[\"21% increased Physical Damage\"],\"explicitMods\":[\"+19 to maximum Energy Shield\",\"+32% to Fire Resistance\",\"+15% to Cold Resistance\",\"+31% to Lightning Resistance\"],\"frameType\":2,\"socketedItems\":[]},[]],[4,{\"verified\":false,\"w\":2,\"h\":2,\"icon\":\"http:\\/\\/webcdn.pathofexile.com\\/image\\/Art\\/2DItems\\/Armours\\/Gloves\\/MaligarosVirtousity.png?scale=1&v=2614d1663cda7c88fa4b600c03cbc42a1\",\"support\":true,\"league\":\"Hardcore\",\"sockets\":[{\"group\":0,\"attr\":\"S\"},{\"group\":0,\"attr\":\"D\"},{\"group\":0,\"attr\":\"I\"},{\"group\":0,\"attr\":\"I\"}],\"name\":\"Maligaro's Virtuosity\",\"typeLine\":\"Deerskin Gloves\",\"identified\":true,\"properties\":[{\"name\":\"Quality\",\"values\":[[\"+20%\",1]],\"displayMode\":0},{\"name\":\"Evasion Rating\",\"values\":[[\"121\",1]],\"displayMode\":0}],\"requirements\":[{\"name\":\"Level\",\"values\":[[\"21\",0]],\"displayMode\":0},{\"name\":\"Dex\",\"values\":[[\"33\",0]],\"displayMode\":1}],\"explicitMods\":[\"+23 to Dexterity\",\"5% increased Attack Speed\",\"50% increased Global Critical Strike Chance\",\"41% increased Global Critical Strike Multiplier\",\"63% increased Evasion Rating\"],\"flavourText\":[\"Maligaro operated effortlessly,\\r\",\"with great speed and terrible consequences.\"],\"frameType\":3,\"socketedItems\":[]},[]]])).run(); });\n        });    //-->\n"
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1 回答 1

1

您的字符串中有几乎有效的 JSON 代码，但其中的引号被转义，并且它包含在一些使用该 JSON 数据的 JavaScript 代码中。

如果您去掉 JavaScript 代码并取消转义引号，您可以解析 JSON。您可以使用一些正则表达式来做到这一点。

假设您的测试数据位于名为 的文件中download.txt，则此代码将执行此操作：

#!/usr/bin/env ruby

require 'json'

input = File.read( 'download.txt' )

a = input.gsub( /[\r\n]/m, '' )  # Remove newlines
b = a.gsub( /\\"/, '"' )         # Unescape quotes
c = b.sub( /^.*\(new R\(/, '' )  # Remove JavaScript at beginning
d = c.sub( /\)\)\.run.*$/, '' )  # Remove JavaScript at end

j = JSON.parse( d )  # Now we have JSON we can parse

p j.class   # Prints Array
p j.length  # Prints 5
p j         # Prints JSON data
于 2013-06-21T17:15:07.063 回答