如何让正则表达式忽略 URL 字符串？
我有以下正则表达式，通过用分号分隔字符串来创建值的哈希值：
Hash["photo:chase jarvis".scan(/(.*)\:(.*)/)]
// {'photo' => 'chase jarvis'}
但我也希望能够在字符串中包含 URL 并识别它，以便它在哈希值一侧维护 URL 部分，即：
Hash["photo:http://www.chasejarvis.com".scan(/(.*)\:(.*)/)]
// Results in {'photo:http' => '//www.chasejarvis.com'}
我当然想要：
Hash["photo:chase jarvis".scan(/ ... /)]
// {'photo' => 'http://www.chasejarvis.com'}
I have the following Regexp to create a hash of values by separating a string at a semicolon:
Hash["photo:chase jarvis".scan(/(.*)\:(.*)/)]
// {'photo' => 'chase jarvis'}
But I also want to be able to have URL's in the string and recognize it so it maintains the URL part in the value side of the hash i.e:
Hash["photo:http://www.chasejarvis.com".scan(/(.*)\:(.*)/)]
// Results in {'photo:http' => '//www.chasejarvis.com'}
I want, of course:
Hash["photo:chase jarvis".scan(/ ... /)]
// {'photo' => 'http://www.chasejarvis.com'}
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如果您只想匹配第一个冒号，可以将
(.*)\:(.*)更改为([^:]*)\:(.*)。或者，您可以使其成为非贪婪匹配，但我更喜欢说“不是冒号”。
If you only want to match up to first colon you could change
(.*)\:(.*)to([^:]*)\:(.*).Alternatively, you could make it a non-greedy match, but I prefer saying "not colon".
如何查出一个人的姓氏和名字？
将
chasejarvis更改为chase和jarvis可能无法实现，除非您有解决方案。您已经知道项目中每个人的名字了吗？没有人拥有像
charvisdjarvis这样的中间名首字母（假设名字是“Charvis D. Jarvis”。）？How do figure out a person's family name and first name?
Changing
chasejarvistochaseandjarvismight not be possible unless you have a solution for that.Do you already know everyone's name in your project? Nobody is having the initial of a middle name like
charvisdjarvis(assuming the name is "Charvis D. Jarvis".)?