ruby - 如何编写 TSV 文件抓取器，其中“如果行包含 x，则保存”？

Question

我想打开一个 TSV（制表符分隔值）文件，并将特定行保存到一个新的 CSV（逗号分隔值）文件中。

如果该行包含'NLD'在标题为“Actor1Code”的字段中，我想将该行保存到 CSV；如果没有，我想迭代到下一行。这是我到目前为止所拥有的，但显然这还不够：

require 'csv'

CSV.open("path/to.csv", "wb") do |csv| #csv to save to
  CSV.open('data.txt', 'r', '\t').each do |row| #csv to scrape
    if row['Actor1Code'] == 'NLD'
      csv << row
    else
    end
  end
end

Answer 1

Are you sure that you're calling CSV.open correctly? The documentation seems to suggest arguments are passed in as hashes:

CSV.open('data.txt', 'r', col_sep: "\t")

The error you're seeing is probably the result of '\t' being interpreted as a hash and referenced with [].