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URLTO GUIDE

How trimming affects duplicate matching

Trimming can make previously different lines match. Review the option for indentation-sensitive data.

URLTO editorial · Updated

Duplicate-line removal · series03 / 10

Input and processing example

Compare it yourself · Illustrative example

입력 / Input: "A" · " A "
trim 끔 / off: 두 줄 유지 / both retained
trim 켬 / on: A 한 줄 / one A

Steps to verify

  • Check whether edge spaces matter.
  • Compare results with each setting.
  • Review lines needing exact preservation.

How to interpret the result

Trimming affects line edges, not every internal space. Changing the option can also change the output text.

Deciding what to do next

Check formatting before trimming code, aligned tables or identifiers. Compare ordinary lists for unintended changes too.

Feature scope

Keep first-occurrence order while removing matching strings, with trim and empty-line options and case-sensitive comparison, not semantic merging.

Frequently asked questions

Are internal spaces collapsed?

It trims edges and does not merge internal-string meaning.

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