紅寶石正則表達式 - 陣列

Question

我有一個2-d紅寶石陣列，它看起來是這樣的：

(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 

我想將它們單獨成2列，使得第一個應該有「合計」和所有行其他陣列應該有其他的一切。

Answer 1

我不太明白你的陣列的字段，但你可以使用select和拒絕：

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

對於你的每個元素的任何測試。最初的@main將保持原樣，您可以使用總計和其他來訪問元素。

Answer 2

你的問題沒有很好地解釋，但作爲一個快速猜測你想，我會建議看Array.group_by什麼，這是可枚舉的一部分：

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 } 

返回一個哈希，用鑰匙是最後一個元素的兩個不同值中的子陣列：

{ 
    "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" 
     ] 
    ] 
} 

訪問的一個或另一個是容易的：

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"]]