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fixed-width-string

2.0.0
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  • License MIT

Terminal ANSI-aware string fit to fixed width

Package Exports

  • fixed-width-string

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (fixed-width-string) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

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Fit a string to the fixed width (length) with aware of ANSI escape codes.

Features:

  • Works well with strings with ANSI escape codes, i.e strings styled with a lib like chalk
  • Pad or truncate string if needed
  • Align string

Install

$ npm install fixed-width-string

Usage

var fixedWidthString = require('fixed-width-string');

console.log(fixedWidthString('test', 10));
// "test      "

console.log(fixedWidthString('very long string', 10));
// "very long…"

console.log(fixedWidthString('very long string', { align: 'right' }));
// "…ng string"

var chalk = require('chalk');

console.log(fixedWidthString(chalk.green('hello') + ' ' + chalk.red('world'), 8));
// "\u001b[32mhello\u001b[39m \u001b[31mw…\u001b[39m"
//
// but in terminal you'll see colored
// "hello w…"

API

fixedWidthString(str, width[, options])

options.padding

String to padding with.

Default: ' ' (one space)

console.log(fixedWidthString('test', 10));
// "test      "

console.log(fixedWidthString('test', 10, { padding: '.' }));
// "test......"

options.align

Side to align.

Values: 'left' or 'right'
Default: 'left'

console.log(fixedWidthString('test', 10));
// "test      "

console.log(fixedWidthString('test', 10, { align: 'right' }));
// "      test"

options.ellipsis

String to be placed when string is truncating.

Default: '…'

Note: To omit ellipsis, pass an empty string or falsy value for the option.

console.log(fixedWidthString('hello world', 8));
// "hello w…"

console.log(fixedWidthString('hello world', 8, { ellipsis: '~' }));
// "hello w~"

console.log(fixedWidthString('hello world', 8, { ellipsis: '...', align: 'right' }));
// "...world"

console.log(fixedWidthString('hello world', 8, { ellipsis: false, align: 'right' }));
// "lo world"

options.truncate

Side should be truncated.

Values: 'left' or 'right'
Default: 'right' when align: 'left' or 'left' when align: 'right'

console.log(fixedWidthString('hello world', 8));
// "hello w…"

console.log(fixedWidthString('hello world', 8, { truncate: 'left' }));
// "…o world"

console.log(fixedWidthString('hello world', 8, { align: 'right' }));
// "hello w…"

console.log(fixedWidthString('hello world', 8, { align: 'right', truncate: 'left' }));
// "…o world"

License

MIT