[英]Match a string against multiple patterns
How can I match a string against multiple patterns using regular expression in ruby. 如何在ruby中使用正则表达式将字符串与多个模式匹配。
I am trying to see if a string is included in an array of prefixes, This is not working but I think it demonstrates at least what I am trying to do. 我试图看一个字符串是否包含在前缀数组中,这不起作用,但我认为它至少证明了我要做的事情。
# example:
# prefixes.include?("Mrs. Kirsten Hess")
prefixes.include?(name) # should return true / false
prefixes = [
/Ms\.?/i,
/Miss/i,
/Mrs\.?/i,
/Mr\.?/i,
/Master/i,
/Rev\.?/i,
/Reverend/i,
/Fr\.?/i,
/Father/i,
/Dr\.?/i,
/Doctor/i,
/Atty\.?/i,
/Attorney/i,
/Prof\.?/i,
/Professor/i,
/Hon\.?/i,
/Honorable/i,
/Pres\.?/i,
/President/i,
/Gov\.?/i,
/Governor/i,
/Coach/i,
/Ofc\.?/i,
/Officer/i,
/Msgr\.?/i,
/Monsignor/i,
/Sr\.?/i,
/Sister\.?/i,
/Br\.?/i,
/Brother/i,
/Supt\.?/i,
/Superintendent/i,
/Rep\.?/i,
/Representative/i,
/Sen\.?/i,
/Senator/i,
/Amb\.?/i,
/Ambassador/i,
/Treas\.?/i,
/Treasurer/i,
/Sec\.?/i,
/Secretary/i,
/Pvt\.?/i,
/Private/i,
/Cpl\.?/i,
/Corporal/i,
/Sgt\.?/i,
/Sargent/i,
/Adm\.?/i,
/Administrative/i,
/Maj\.?/i,
/Major/i,
/Capt\.?/i,
/Captain/i,
/Cmdr\.?/i,
/Commander/i,
/Lt\.?/i,
/Lieutenant/i,
/^Lt Col\.?$/i,
/^Lieutenant Col$/i,
/Col\.?/i,
/Colonel/i,
/Gen\.?/i,
/General/i
]
Use Regexp.union
to combine them: 使用Regexp.union
将它们组合在一起:
union(pats_ary) → new_regexp union(pats_ary)→new_regexp
Return a
Regexp
object that is the union of the given patterns , ie, will match any of its parts. 返回一个Regexp
对象,它是给定模式的并集 ,即匹配任何部分。
So this will do: 所以这将做:
re = Regexp.union(prefixes)
then you use re
as your regex: 然后你用re
作为你的正则表达式:
if name.match(re)
#...
If you can use a single string, it might be faster to write a regex containing the possible values. 如果可以使用单个字符串,则编写包含可能值的正则表达式可能会更快。
eg 例如
/(Mr\.|Mrs\.| ... )/.match(name)
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