What is the best way to divide a string into chunks of no more than 2000 characters each at the end of

Here is a brief excerpt from a string variable labeled results ...

2017-09-18  920.0100  922.0800  910.5999  915.0000  1294800
2017-09-15  924.6599  926.4899  916.3599  920.2899  2505400
2017-09-14  931.2500  932.7700  924.0000  925.1099  1397600
2017-09-13  930.6599  937.2500  929.8599  935.0900  1102600
2017-09-12  932.5900  933.4799  923.8610  932.0700  1134400
2017-09-11  934.2500  938.3800  926.9199  929.0800  1267000
2017-09-08  936.4899  936.9899  924.8800  926.5000  995100
2017-09-07  931.7299  936.4099  923.6199  935.9500  1212700

I am trying to break it into an array with each segment being around 2000 characters long and ending at the conclusion of a line. Currently, I am using the following code snippet but it splits each item in the array in the middle of a line.

var parts = results.match(/[\s\S]{1,2000}/g);
javascriptarraysregexmatch

Answer №1

If you want to make sure that each match contains up to 2000 characters, you can utilize the following code:

let segments = matches.match(/[\s\S]{1,2000}$/gm);

Additional Information

  • [\s\S]{1,2000} - Any character between 1 and 2000 times, as many as possible,
  • $ - Indicates end of line
  • /gm - Enables matching multiple occurrences (g) and ensures $ matches end of a line(m).

Answer №2

Snippet of Code

View the code in action here

[\s\S]{1,200}(?:\v|$)

Explanation of Code

  • This regex will match any character between 1 and 200 times
  • It will then match either a vertical whitespace character \v or the end of the string/file $

If needed, adjust the range from 200 to 2000 depending on your specific requirements.

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