如何解析ruby中的天/小时/分钟/秒？ [英] How to parse days/hours/minutes/seconds in ruby?

问题描述

是否有宝石或用于解析像4小时30分，1小时4小时等字符串的东西 - 有点像JIRA或任务计划人员的估计，也许是国际化？

  class TimeParser 
 TOKENS = {
m=> > （60），
h=> （60 * 60），
d=> （60 * 60 * 24）
} 
 
 attr_reader：time 
 
 def初始化（输入）
 @input =输入
 @time = 0 
 parse 
 end 
 $ b $ def defrse 
 @ input.scan（/（\ d +）（\w）/）。each do | amount，测量| 
 @time + = amount.to_i * TOKENS [measure] 
 end 
 end 
 end 
  

策略非常简单。将5h分解为 [5，h] ，定义多少秒h表示（ TOKENS ），并将该金额添加到 @time 中。

  TimeParser.new（1m）。time 
＃=> 60 
 
 TimeParser.new（1m wtf lol）。time 
＃=> 60 
 
 TimeParser.new（4小时30分钟）。时间
＃=> 16200 
 
 TimeParser.new（1d 4h）。time 
＃=> 100800 
  

它不应该太难处理1.5h 要么看到代码库是如此简单。

Is there a gem or something to parse strings like "4h 30m" "1d 4h" -- sort of like the estimates in JIRA or task planners, maybe, with internationalization?

解决方案

Posting a 2nd answer, as chronic (which my original answer suggested) doesn't give you timespans but timestamps.

Here's my go on a parser.

class TimeParser
  TOKENS = {
    "m" => (60),
    "h" => (60 * 60),
    "d" => (60 * 60 * 24)
  }

  attr_reader :time

  def initialize(input)
    @input = input
    @time = 0
    parse
  end

  def parse
    @input.scan(/(\d+)(\w)/).each do |amount, measure|
      @time += amount.to_i * TOKENS[measure]
    end
  end
end

The strategy is fairly simple. Split "5h" into ["5", "h"], define how many seconds "h" represents (TOKENS), and add that amount to @time.

TimeParser.new("1m").time
# => 60

TimeParser.new("1m wtf lol").time
# => 60

TimeParser.new("4h 30m").time
# => 16200

TimeParser.new("1d 4h").time
# => 100800

It shouldn't be too hard making it handle "1.5h" either, seeing the codebase is as simple as it is.

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