Question

我有一个字符串数组：

strings = ["\u2014 some text", "\u00A0 Foo", "Bar"]

为了获得如下所示的数组，我应该写什么语句：

strings = [" some text", " Foo", "Bar"]

我试过跟随，但没有运气：

strings.map!{|string| string.gsub!(/(Wu2014|Wu00A0)/, '')}

Answer 1

我建议删除其中一个刘海。如果您要删除所有非ASCII字符，可以尝试：

[" some text", " Foo", "Bar"]

这将替换所有非ASCII字符。对我来说，这导致：

var data1 = "ymbgaraibkfmvocpizdydugvalagaivdbfsfbepeyccqfepzvtpyxtbadkhmwmoswrcxnargtlswqemafandgkmydtimuzvjwxvlfwlhvkrgcsithaqlcvrihrwqkpjdhgfgreqoxzfvhjzojhghfwbvpfzectwwhexthbsndovxejsntmjihchaotbgcysfdaojkjldprwyrnischrgmtvjcorypvopfmegizfkvudubnejzfqffvgdoxohuinkyygbdzmshvyqyhsozwvlhevfepdvafgkqpkmcsikfyxczcovrmwqxxbnhfzcjjcpgzjjfateajnnvlbwhyppdleahgaypxidkpwmfqwqyofwdqgxhjaxvyrzupfwesmxbjszolgwqvfiozofncbohduqgiswuiyddmwlwubetyaummenkdfptjczxemryuotrrymrfdxtrebpbjtpnuhsbnovhectpjhfhahbqrfbyxggobsweefcwxpqsspyssrmdhuelkkvyjxswjwofngpwfxvknkjviiavorwyfzlnktmfwxkvwkrwdcxjfzikdyswsuxegmhtnxjraqrdchaauazfhtklxsksbhwgjphgbasfnlwqwukprgvihntsyymdrfovaszjywuqygpvjtvlsvvqbvzsmgweiayhlubnbsitvfxawhfmfiatxvqrcwjshvovxknnxnyyfexqycrlyksderlqarqhkxyaqwlwoqcribumrqjtelhwdvaiysgjlvksrfvjlcaiwrirtkkxbwgicyhvakxgdjwnwmubkiazdjkfmotglclqndqjxethoutvjchjbkoasnnfbgrnycucfpeovruguzumgmgddqwjgdvaujhyqsqtoexmnfuluaqbxoofvotvfoiexbnprrxptchmlctzgqtkivsilwgwgvpidpvasurraqfkcmxhdapjrlrnkbklwkrvoaziznlpor",
    data2 = "qhxepbshlrhoecdaodgpousbzfcqjxulatciapuftffahhlmxbufgjuxstfjvljybfxnenlacmjqoymvamphpxnolwijwcecgwbcjhgdybfffwoygikvoecdggplfohemfypxfsvdrseyhmvkoovxhdvoavsqqbrsqrkqhbtmgwaurgisloqjixfwfvwtszcxwktkwesaxsmhsvlitegrlzkvfqoiiwxbzskzoewbkxtphapavbyvhzvgrrfriddnsrftfowhdanvhjvurhljmpxvpddxmzfgwwpkjrfgqptrmumoemhfpojnxzwlrxkcafvbhlwrapubhveattfifsmiounhqusvhywnxhwrgamgnesxmzliyzisqrwvkiyderyotxhwspqrrkeczjysfujvovsfcfouykcqyjoobfdgnlswfzjmyucaxuaslzwfnetekymrwbvponiaojdqnbmboldvvitamntwnyaeppjaohwkrisrlrgwcjqqgxeqerjrbapfzurcwxhcwzugcgnirkkrxdthtbmdqgvqxilllrsbwjhwqszrjtzyetwubdrlyakzxcveufvhqugyawvkivwonvmrgnchkzdysngqdibhkyboyftxcvvjoggecjsajbuqkjjxfvynrjsnvtfvgpgveycxidhhfauvjovmnbqgoxsafknluyimkczykwdgvqwlvvgdmufxdypwnajkncoynqticfetcdafvtqszuwfmrdggifokwmkgzuxnhncmnsstffqpqbplypapctctfhqpihavligbrutxmmygiyaklqtakdidvnvrjfteazeqmbgklrgrorudayokxptswwkcircwuhcavhdparjfkjypkyxhbgwxbkvpvrtzjaetahmxevmkhdfyidhrdeejapfbafwmdqjqszwnwzgclitdhlnkaiyldwkwwzvhyorgbysyjbxsspnjdewjxbhpsvj",
    hash = Object.create(null),
    count = function (a) { hash[a] = (hash[a] || 0) + this; },
    result;

data1.split('').forEach(count, 1);
data2.split('').forEach(count, -1);

result = Object.keys(hash).filter(function (k) { return hash[k]; });

console.log(result);

Answer 2

您可能希望从字符串的开头删除所有非ASCII字符：

strings = ["\u2014 some text", "\u00A0 Foo", "Bar"]
strings.map!{|s| s.sub(/\A\P{ASCII}+/,'')} # remove non-ASCII from the start of the string

请参阅Ruby demo

或者，您可以使用

删除除字和空格之外的所有字符

strings.map!{|s| s.sub(/\A[^\w\s]+/,'')}

见this Ruby demo。

详细：

\A - 字符串开头
\P{ASCII} - 任何字符，但ASCII
[^\w\s] - 任何字符，但只有一个字（\w）或空格（\s）字符
+ - 与量化模式的一次或多次匹配的量词。

Answer 3

如果要删除非ASCII字符，则

strings.map{| s | s.encode('ASCII', 'binary', invalid: :replace, undef: :replace, replace: '')}

Answer 4

你有太多的刘海和不正确的正则表达式

尝试

strings.map{|string| string.gsub!(/(\u2014|\u00A0)/, '')}

或

strings.map!{|string| string.gsub(/(\u2014|\u00A0)/, '')}

或

new_strings = strings.map{|string| string.gsub(/(\u2014|\u00A0)/, '')}
strings = new_strings

替换Ruby中的非标准字符

4 个答案: