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lines-and-columns

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lines-and-columns

Maps lines and columns to character offsets and back.

  • 2.0.4
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What is lines-and-columns?

The lines-and-columns npm package is used to map between lines and columns to character offsets within a string, which is particularly useful when dealing with source code or any structured text format where line and column positions are commonly used.

What are lines-and-columns's main functionalities?

Index to Position

This feature allows you to convert a line and column position into a character offset index. It is useful when you have a line and column number and you want to find the corresponding position in a flat string.

{"const LinesAndColumns = require('lines-and-columns');\nconst lines = new LinesAndColumns('Hello\nWorld');\nconst location = lines.indexForLocation({ line: 1, column: 2 }); // returns 9"}

Position to Index

This feature allows you to convert a character offset index back into a line and column position. It is useful when you have an index in a string and you need to find out which line and column it corresponds to.

{"const LinesAndColumns = require('lines-and-columns');\nconst lines = new LinesAndColumns('Hello\nWorld');\nconst position = lines.locationForIndex(7); // returns { line: 1, column: 0 }"}

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Package last updated on 07 Nov 2023

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