@guanghechen/parse-lineno

Parse something like '1,3-10' to numbers or intervals.

Install

• npm

  npm install --save-dev @guanghechen/parse-lineno

• yarn

  yarn add --dev @guanghechen/parse-lineno

Usage

• Parse lineno string into numbers.

  import { collectNumbers } from '@guanghechen/parse-lineno'
  
  collectNumbers('')              // => []
  collectNumbers('1')             // => [1]
  collectNumbers('1-3')           // => [1, 2, 3]
  collectNumbers('3,1-2,2,2')     // => [1, 2, 3]
  collectNumbers('3,7-5,2,2')     // => [2, 3, 5, 6, 7]
  collectNumbers('2,1-3')         // => [1, 2, 3]
  collectNumbers('4,1-3')         // => [1, 2, 3, 4]
  collectNumbers('2-4,1-3,5-9')   // => [1, 2, 3, 4, 5, 6, 7, 8, 9]
  collectNumbers('2-4,1-3,6-9')   // => [1, 2, 3, 4, 6, 7, 8, 9]

• Parse lineno string into intervals.

  import { collectIntervals } from '@guanghechen/parse-lineno'
  
  collectIntervals('')              // => []
  collectIntervals('1')             // => [[1, 1]]
  collectIntervals('1-3')           // => [[1, 3]]
  collectIntervals('3,1-2,2,2')     // => [[1, 3]]
  collectIntervals('3,7-5,2,2')     // => [[2, 3], [5, 7]]
  collectIntervals('2,1-3')         // => [[1, 3]]
  collectIntervals('4,1-3')         // => [[1, 4]]
  collectIntervals('2-4,1-3,5-9')   // => [[1, 9]]
  collectIntervals('2-4,1-3,6-9')   // => [[1, 4], [6, 9]]

• Custom Separator (default is /[,\s]+/)

  collectNumbers('2#4-5#5-8', /#/)    // => [2, 4, 5, 6, 7, 8]
  
  collectIntervals('2#4-5#5-8', /#/)  // => [[2, 2], [4, 8]]