| # cliui |
| |
|  |
| [](https://www.npmjs.com/package/cliui) |
| [](https://conventionalcommits.org) |
|  |
| |
| easily create complex multi-column command-line-interfaces. |
| |
| ## Example |
| |
| ```js |
| const ui = require('cliui')() |
| |
| ui.div('Usage: $0 [command] [options]') |
| |
| ui.div({ |
| text: 'Options:', |
| padding: [2, 0, 1, 0] |
| }) |
| |
| ui.div( |
| { |
| text: "-f, --file", |
| width: 20, |
| padding: [0, 4, 0, 4] |
| }, |
| { |
| text: "the file to load." + |
| chalk.green("(if this description is long it wraps).") |
| , |
| width: 20 |
| }, |
| { |
| text: chalk.red("[required]"), |
| align: 'right' |
| } |
| ) |
| |
| console.log(ui.toString()) |
| ``` |
| |
| ## Deno/ESM Support |
| |
| As of `v7` `cliui` supports [Deno](https://github.com/denoland/deno) and |
| [ESM](https://nodejs.org/api/esm.html#esm_ecmascript_modules): |
| |
| ```typescript |
| import cliui from "https://deno.land/x/cliui/deno.ts"; |
| |
| const ui = cliui({}) |
| |
| ui.div('Usage: $0 [command] [options]') |
| |
| ui.div({ |
| text: 'Options:', |
| padding: [2, 0, 1, 0] |
| }) |
| |
| ui.div({ |
| text: "-f, --file", |
| width: 20, |
| padding: [0, 4, 0, 4] |
| }) |
| |
| console.log(ui.toString()) |
| ``` |
| |
| <img width="500" src="screenshot.png"> |
| |
| ## Layout DSL |
| |
| cliui exposes a simple layout DSL: |
| |
| If you create a single `ui.div`, passing a string rather than an |
| object: |
| |
| * `\n`: characters will be interpreted as new rows. |
| * `\t`: characters will be interpreted as new columns. |
| * `\s`: characters will be interpreted as padding. |
| |
| **as an example...** |
| |
| ```js |
| var ui = require('./')({ |
| width: 60 |
| }) |
| |
| ui.div( |
| 'Usage: node ./bin/foo.js\n' + |
| ' <regex>\t provide a regex\n' + |
| ' <glob>\t provide a glob\t [required]' |
| ) |
| |
| console.log(ui.toString()) |
| ``` |
| |
| **will output:** |
| |
| ```shell |
| Usage: node ./bin/foo.js |
| <regex> provide a regex |
| <glob> provide a glob [required] |
| ``` |
| |
| ## Methods |
| |
| ```js |
| cliui = require('cliui') |
| ``` |
| |
| ### cliui({width: integer}) |
| |
| Specify the maximum width of the UI being generated. |
| If no width is provided, cliui will try to get the current window's width and use it, and if that doesn't work, width will be set to `80`. |
| |
| ### cliui({wrap: boolean}) |
| |
| Enable or disable the wrapping of text in a column. |
| |
| ### cliui.div(column, column, column) |
| |
| Create a row with any number of columns, a column |
| can either be a string, or an object with the following |
| options: |
| |
| * **text:** some text to place in the column. |
| * **width:** the width of a column. |
| * **align:** alignment, `right` or `center`. |
| * **padding:** `[top, right, bottom, left]`. |
| * **border:** should a border be placed around the div? |
| |
| ### cliui.span(column, column, column) |
| |
| Similar to `div`, except the next row will be appended without |
| a new line being created. |
| |
| ### cliui.resetOutput() |
| |
| Resets the UI elements of the current cliui instance, maintaining the values |
| set for `width` and `wrap`. |