正则表达式分组需求：匹配含耗时、距离、ETA的目标字符串

Got it, let's sort out this regex for you! The main issues with your current attempt are likely greedy matching from .+ (which can gobble up more text than you want) and not accounting for all the variations in each segment—like optional hours/minutes, thousand separators in distances, and different unit types.

Here's the working regex that covers all your sample strings and captures the three named groups correctly:

^(?<routearrivalin>(?:\d+\s+h(?:\s+\d+\s+min)?|\d+\s+min))\s+-\s+(?<routedistance>(?:\d{1,3}(?:\.\d{3})*,\d+|\d+)\s+(?:km|m))\s+-\s+Ankunft ca\.\s+(?<routeeta>\d{2}:\d{2})$

Let's break down each part: #

• routearrivalin: This group handles all three possible time formats in your samples:

  • \d+\s+h\s+\d+\s+min: Matches full time strings like 17 h 13 min
  • \d+\s+h: Matches hour-only strings like 17 h
  • \d+\s+min: Matches minute-only strings like 13 min
    The non-capturing groups (?:...) let us group these options without creating extra capture groups.

• routedistance: This covers all distance variations:

  • \d{1,3}(?:\.\d{3})*,\d+: Matches numbers with thousand separators and decimals (like 1.443,1)
  • \d+: Matches plain integers (like 431 or 3)
  • \s+(?:km|m): Matches the unit (km or m) with a preceding space

• routeeta: This targets the time string specifically by first matching the fixed prefix Ankunft ca. , then capturing the time in HH:MM format with \d{2}:\d{2}.

Testing with your samples: #

Let's verify it works for each of your input strings:

1. Input: 17 h 13 min - 43,1 km - Ankunft ca. 11:48
   • routearrivalin: 17 h 13 min
   • routedistance: 43,1 km
   • routeeta: 11:48
2. Input: 17 h 13 min - 1.443,1 km - Ankunft ca. 11:48
   • routearrivalin: 17 h 13 min
   • routedistance: 1.443,1 km
   • routeeta: 11:48
3. Input: 13 min - 431 m - Ankunft ca. 11:48
   • routearrivalin: 13 min
   • routedistance: 431 m
   • routeeta: 11:48
4. Input: 17 h - 3 km - Ankunft ca. 09:04
   • routearrivalin: 17 h
   • routedistance: 3 km
   • routeeta: 09:04

Quick notes: #

• If your input strings might have leading/trailing whitespace, add \s* at the start (^\s*) and end (\s*$) of the regex.
• This assumes all time formats fit the three cases you provided, and distances use . as thousand separators and , as decimal separators (consistent with your samples).

内容的提问来源于stack exchange，提问作者edba