红宝石正则表达式 - 阵列

Question

我有一个2-d红宝石阵列，它看起来是这样的：

(Array) - @main.each do |value| 

value[0] value[1] value[2] 

3.0.1.2  TOTAL  Pass 
3.0.1.3  TOTAL  Pass 
3.4.0.1  8K   Fail 
3.5.4.3  9K   Fail 
3.5.0.9  TOTAL  Fail 

我想将它们单独成2列，使得第一个应该有“合计”和所有行其他阵列应该有其他的一切。

Answer 1

我不太明白你的阵列的字段，但你可以使用select和拒绝：

totals = @main.select{|entry| entry == "TOTAL"} 
others = @main.reject{|entry| entry == "TOTAL"} 

对于你的每个元素的任何测试。最初的@main将保持原样，您可以使用总计和其他来访问元素。

Answer 2

你的问题没有很好地解释，但作为一个快速猜测你想，我会建议看Array.group_by什么，这是可枚举的一部分：

ary = [ 
    %w[3.0.1.2  TOTAL  Pass], 
    %w[3.0.1.3  TOTAL  Pass], 
    %w[3.4.0.1  8K   Fail], 
    %w[3.5.4.3  9K   Fail], 
    %w[3.5.0.9  TOTAL  Fail], 
] 


ary.group_by{ |a| a.last } 

返回一个哈希，用钥匙是最后一个元素的两个不同值中的子阵列：

{ 
    "Pass" => [ 
     [0] [ 
      [0] "3.0.1.2", 
      [1] "TOTAL", 
      [2] "Pass" 
     ], 
     [1] [ 
      [0] "3.0.1.3", 
      [1] "TOTAL", 
      [2] "Pass" 
     ] 
    ], 
    "Fail" => [ 
     [0] [ 
      [0] "3.4.0.1", 
      [1] "8K", 
      [2] "Fail" 
     ], 
     [1] [ 
      [0] "3.5.4.3", 
      [1] "9K", 
      [2] "Fail" 
     ], 
     [2] [ 
      [0] "3.5.0.9", 
      [1] "TOTAL", 
      [2] "Fail" 
     ] 
    ] 
} 

访问的一个或另一个是容易的：

ary.group_by{ |a| a.last }['Pass'] 
[ 
    [0] [ 
     [0] "3.0.1.2", 
     [1] "TOTAL", 
     [2] "Pass" 
    ], 
    [1] [ 
     [0] "3.0.1.3", 
     [1] "TOTAL", 
     [2] "Pass" 
    ] 
] 

或者：

ary.group_by{ |a| a.last }['Fail'] 
[ 
    [0] [ 
     [0] "3.4.0.1", 
     [1] "8K", 
     [2] "Fail" 
    ], 
    [1] [ 
     [0] "3.5.4.3", 
     [1] "9K", 
     [2] "Fail" 
    ], 
    [2] [ 
     [0] "3.5.0.9", 
     [1] "TOTAL", 
     [2] "Fail" 
    ] 
] 

Answer 3

@main = [ 
    %w[3.0.1.2  TOTAL  Pass], 
    %w[3.0.1.3  TOTAL  Pass], 
    %w[3.4.0.1  8K   Fail], 
    %w[3.5.4.3  9K   Fail], 
    %w[3.5.0.9  TOTAL  Fail], 
] 

totals, others = @main.partition{|a| a[1] == 'TOTAL'} 

# totals => [["3.0.1.2", "TOTAL", "Pass"], ["3.0.1.3", "TOTAL", "Pass"], ["3.5.0.9", "TOTAL", "Fail"]] 
# others => [["3.4.0.1", "8K", "Fail"], ["3.5.4.3", "9K", "Fail"]]