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The 'anser' npm package is a library that allows you to convert ANSI escape codes into HTML. This is particularly useful for rendering terminal output in web applications, where you want to preserve the color and style formatting.
Convert ANSI to HTML
This feature allows you to convert a string containing ANSI escape codes into an HTML string with equivalent styling. The example converts a red-colored 'Hello, World!' from ANSI to HTML.
const anser = require('anser');
const ansiString = '\u001b[31mHello, World!\u001b[0m';
const htmlString = anser.toHtml(ansiString);
console.log(htmlString); // Outputs: <span style="color:#E34C26;">Hello, World!</span>
Strip ANSI codes
This feature allows you to strip ANSI escape codes from a string, leaving just the plain text. The example removes the red color formatting from 'Hello, World!'.
const anser = require('anser');
const ansiString = '\u001b[31mHello, World!\u001b[0m';
const plainString = anser.ansiToText(ansiString);
console.log(plainString); // Outputs: Hello, World!
Escape for HTML
This feature escapes HTML special characters in a string containing ANSI escape codes. The example converts '<' and '>' to their HTML entities.
const anser = require('anser');
const ansiString = '\u001b[31mHello, <World>!\u001b[0m';
const escapedHtmlString = anser.escapeForHtml(ansiString);
console.log(escapedHtmlString); // Outputs: \u001b[31mHello, <World>!\u001b[0m
Chalk is a popular library for styling terminal strings in Node.js. Unlike 'anser', which focuses on converting ANSI codes to HTML, Chalk is primarily used for creating styled terminal output. It supports various styles and colors but does not provide HTML conversion.
The 'ansi-to-html' package is similar to 'anser' in that it converts ANSI escape codes to HTML. However, 'anser' offers more features like stripping ANSI codes and escaping for HTML, making it a more versatile choice for handling ANSI codes.
The 'strip-ansi' package is a simple utility for removing ANSI escape codes from strings. While it performs a similar function to 'anser's' ansiToText method, it lacks the additional features like HTML conversion and escaping.
A low level parser for ANSI sequences.
# Using npm
npm install --save anser
# Using yarn
yarn add anser
const Anser = require("anser");
const txt = "\u001b[38;5;196mHello\u001b[39m \u001b[48;5;226mWorld\u001b[49m";
console.log(Anser.ansiToHtml(txt));
// <span style="color:rgb(255, 0, 0)">Hello</span> <span style="background-color:rgb(255, 255, 0)">World</span>
console.log(Anser.ansiToHtml(txt, { use_classes: true }));
// <span class="ansi-palette-196-fg">Hello</span> <span class="ansi-palette-226-bg">World</span>
console.log(Anser.ansiToJson(txt));
// [ { content: '',
// fg: null,
// bg: null,
// fg_truecolor: null,
// bg_truecolor: null,
// clearLine: undefined,
// decoration: null,
// was_processed: false,
// isEmpty: [Function: isEmpty] },
// { content: 'Hello',
// fg: '255, 0, 0',
// bg: null,
// fg_truecolor: null,
// bg_truecolor: null,
// clearLine: false,
// decoration: null,
// was_processed: true,
// isEmpty: [Function: isEmpty] },
// { content: ' ',
// fg: null,
// bg: null,
// fg_truecolor: null,
// bg_truecolor: null,
// clearLine: false,
// decoration: null,
// was_processed: false,
// isEmpty: [Function: isEmpty] },
// { content: 'World',
// fg: null,
// bg: '255, 255, 0',
// fg_truecolor: null,
// bg_truecolor: null,
// clearLine: false,
// decoration: null,
// was_processed: true,
// isEmpty: [Function: isEmpty] },
// { content: '',
// fg: null,
// bg: null,
// fg_truecolor: null,
// bg_truecolor: null,
// clearLine: false,
// decoration: null,
// was_processed: false,
// isEmpty: [Function: isEmpty] } ]
When using TypeScript without --esModuleInterop enabled you can do the following:
import Anser = require('anser');
const txt = "\u001b[38;5;196mHello\u001b[39m \u001b[48;5;226mWorld\u001b[49m";
console.log(Anser.ansiToHtml(txt));
// <span style="color:rgb(255, 0, 0)">Hello</span> <span style="background-color:rgb(255, 255, 0)">World</span>
Or with --esModuleInterop enabled you can do the following:
import Anser from 'anser';
const txt = "\u001b[38;5;196mHello\u001b[39m \u001b[48;5;226mWorld\u001b[49m";
console.log(Anser.ansiToHtml(txt));
// <span style="color:rgb(255, 0, 0)">Hello</span> <span style="background-color:rgb(255, 255, 0)">World</span>
There are few ways to get help:
Add several widely used style codes
processChunk(text, options, markup)
Processes the current chunk of text.
text
: The input text.options
: An object containing the following fields:json
(Boolean): If true
, the result will be an object.use_classes
(Boolean): If true
, HTML classes will be appended to the HTML output.markup
: If false, the colors will not be parsed.json
is wanted back or string otherwise).Have an idea? Found a bug? See how to contribute.
I open-source almost everything I can, and I try to reply to everyone needing help using these projects. Obviously, this takes time. You can integrate and use these projects in your applications for free! You can even change the source code and redistribute (even resell it).
However, if you get some profit from this or just want to encourage me to continue creating stuff, there are few ways you can do it:
Starring and sharing the projects you like :rocket:
—I love books! I will remember you after years if you buy me one. :grin: :book:
—You can make one-time donations via PayPal. I'll probably buy a coffee tea. :tea:
—Set up a recurring monthly donation and you will get interesting news about what I'm doing (things that I don't share with everyone).
Bitcoin—You can send me bitcoins at this address (or scanning the code below): 1P9BRsmazNQcuyTxEqveUsnf5CERdq35V6
Thanks! :heart:
This project is highly based on ansi_up
, by @drudru. Thanks! :cake:
If you are using this library in one of your projects, add it in this list. :sparkles:
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@ajaykewat/myboilerplate
@ali5049/react-native-buttons
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@brantalikp/rn-resize
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@classyllama/code-style
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@codewars/jest-reporter
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@corelmax/react-native-my2c2p-sdk
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@cubejs-client/playground
@curvenote/ansi-to-react
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@distasy/react-native-fix
@ehyland-org/react-error-overlay
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@felipesimmi/react-native-datalogic-module
@geeky-apo/react-native-advanced-clipboard
@glyw/react-native-tabbed-section-list
@hbglobal/react-native-actions-shortcuts
@hemith/react-native-tnk
@heora/cubejs-client-playground
@hitomeng/ide-debug-mod
@hjopel/react-native
@idas1/ui-component-lib
@jfilipe-sparta/react-native-module_2
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@kui-shell/plugin-client-common
@labiebhn_/react-native-multiplier
@lehuyaa/my-assets
@leonchabbey/react-native-tvos
@navabi/react-native-ssl-pinning
@naze/error
@ndjoe/react-native-bluetooth-escpos-printer
@next/react-dev-overlay
@nonfx/flow-log
@npm_fluentco/adflow-react-native-sdk
@office-iss/react-native-win32
@oiti/rn-liveness2d
@ollion/flow-log
@openpolitica/matomo-next
@opensumi/ide-debug
@pandaninjas3017/react-native
@phong95/react-native-multiple-image-picker
@plansys/react-dev-utils
@popbot/react-native-macos
@praella/localisationist
@prague-digi/react-error-overlay
@prozilla-os/terminal
@react-native-ui-design/button
@redux-devtools/inspector-monitor-trace-tab
@routebuddies/react-native-mapbox-navigation
@ryfow/react-native-windows
@saad27/react-native-bottom-tab-tour
@sebastien_rts/react-native-tvos
@sephriot/react-native-persistable-uri
@shuvi/error-overlay
@sidghimire/react-native-mapbox-navigation
@soyjak/utils
@sridharetikala/react-native-rn-lib-custom-components
@status-im/react-native-transparent-video
@suen/react-native-tvos
@taingo97/react-native-bluetooth-escpos-printer
@taingo97/react-native-bluetooth-xprinter
@taingo97/react-native-expo-key-rsa-kt
@taingo97/react-native-generate-key-rsa
@taingo97/react-native-key-rsa
@taingo97/react-native-print-xprinter
@taingo97/react-native-printer-imin
@taingo97/react-native-rsa-expo
@taingo97/react-native-sunmi-printer
@taingo97/react-native-telpo-printer
@tasumaniadiabori/react-native-draggable-flatlist
@tg1518/react-native-lewin-aliyunplayer
@th3rdwave/react-native
@theia/console
@thinxviewx/core-rn
@throttleup/gatsby
@tlgeo/react-native-gdal
@trackier/react-native-trackier
@unforgiven/react-native
@viankakrisna/react-dev-utils
@viankakrisna/react-error-overlay
@vidit-me/react-native-wheely
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@zotasys/native
@zrnik/react-native
act_mvvm_shop_cart
ada-pack
adyen-rn
affinidi-auth-sdk-kernel
ansi-html-themed
ansi-log-renderer
ansi-to-json
ansi-to-react
ansi-to-react-18
ansi-to-react-with-options
ansi-to-vue3
ansicolor-utils
archlibrary
awesome-module-kd
biometric-st
birken-react-native-community-image-editor
bn-react-native
callstack-task-react-dev-utils
callstack-task-react-error-overlay
checkbox-component
cycle-dev-utils
dogandev-simple-toast
dulcet-error-overlay
fawaterak-online-payment
fluent.adflow.reactnativesdk
fluent.adflow.reactnativesdk-alpha
fmsl
framework_test_library_sixdee
framework_test_library_sixdee_new
framework_test_library_sixdee_new_new
gamification-integration-new
gatsby
gaurav-react-native-loop
genz-native-elements
ipynb2html
ipynb2html-fix
jordy-frijters-test-lib
jrennsoh88-react-native-scroll-indicator
khaled-salem-custom-components
kunai
lambda-dev-utils
linklog
mesh-devtool
multi-term
native-apple-login
native-date-picker-module
native-google-login
native-kakao-login
native-modal-damage-vehicle
new-awesome-4321
nove-repository
npm_one_12_34_1_
npm_one_1_2_3
npm_one_2_2
npm_qwerty
nuclide
nuclide-commons-ui
payutesting
pnm-yph-react-native-custom-components
procrealms-client
raact-native-arunramya151
reac-native-arun-ramya-test
react-ansi
react-ansi-eighteen
react-dev-utils-custom-hmr
react-dev-utils-extra
react-dev-utils-sebfl-update
react-error-guard
react-error-overlay-canary
react-error-overlay-dangerous
react-ipynb-renderer-katex
react-native
react-native-adarsh_react_native_video_player
react-native-addition
react-native-android-native-view
react-native-android-scoped-storage
react-native-android-video-player-view
react-native-animate-text
react-native-ansi-view
react-native-app-bubble
react-native-app-integrity-checksum
react-native-arps-authorize-net
react-native-arun-ramya-test
react-native-arunjeyam1987
react-native-arunmeena1987
react-native-arunramya151
react-native-auth-service-client
react-native-aventonfacetec-aventon
react-native-awesome-android-123
react-native-awesome-android-123-zeotap
react-native-awesome-module-dharmesh
react-native-awesome-module-latest
react-native-awesome-module-two
react-native-azure-communication-services
react-native-badge-control
react-native-basic-app
react-native-basic-screen
react-native-biometric-authenticate
react-native-bleccs-components
react-native-bluetooth-device-detect
react-native-bridge-package
react-native-bubble-chart
react-native-build-vesion-getter
react-native-check-component
react-native-chenaar
react-native-components-design
react-native-conekta-card-tokenizer
react-native-contact-list
react-native-cplus
react-native-create-video-thumbnail
react-native-ctp-odp
react-native-custom-poccomponent
react-native-custom-poccomponent-next
react-native-datacapture-core
react-native-dff-components-demo
react-native-dhp-printer
react-native-dimensions-layout
react-native-dish
react-native-dm-player
react-native-dsphoto-module
react-native-dummy-view
react-native-escape
react-native-expendable-view
react-native-expo-read-sms-ts-kf
react-native-fedlight-dsm
react-native-firebase-messaging
react-native-flyy
react-native-get-countries
react-native-ghn-ekyc
react-native-hlf-wrapper
react-native-innity-2
react-native-innity-remaster
react-native-input-library
react-native-is7
react-native-jsi-device-info
react-native-kakao-maps
react-native-klarify-ios
react-native-klarify-ui
react-native-klc
react-native-lib-test-rn-1
react-native-library-testing-422522
react-native-line-login-android
react-native-login-demo-test
react-native-lowlatency
react-native-loyalty-platforms
react-native-macos
react-native-manh-test
react-native-manual-ios-sdk
react-native-meon-edoc
react-native-meonsdk
react-native-meontool
react-native-modal-progress-bar
react-native-module-for-testing
react-native-multi-bluetooth-printer
react-native-multiplier-altroncoso
react-native-multiplier-component
react-native-multiplier-demo
react-native-multiplier2
react-native-multiply
react-native-multiply-component
react-native-multiselector
react-native-mun-kit
react-native-my-first-try-arun-ramya
react-native-mymap
react-native-native-audio-engine
react-native-native-ios-test1
react-native-nativewind
react-native-nghia-sharering
react-native-nice-learning
react-native-nyx-printer
react-native-offline-notice
react-native-okhttp-fork
react-native-omental-framework
react-native-onramp
react-native-otp-custom-library
react-native-patch-java
react-native-paynow-generator
react-native-payu-payment-testing
react-native-plugpag-wrapper
react-native-pme-loading
react-native-priya-demo-button
react-native-progress-arrow
react-native-pulsator-native
react-native-rabbitmq-all
react-native-radio-bic-group-lib
react-native-reanimated-sortable-list
react-native-recent-framework-update
react-native-remote-clover
react-native-responsive-helper
react-native-responsive-size
react-native-return-usb-data
react-native-rn-common-components-example
react-native-rn-icons-library
react-native-rn-tolkaplayer
react-native-rom-components
react-native-rtn-ips-poslin-test
react-native-sandycomponent
react-native-savczuk-feature-library
react-native-sayhello-module
react-native-screen-idle-timer
react-native-scroll-tab-to-index
react-native-sf
react-native-shared-gesture
react-native-sharing-intent
react-native-simple-timeline
react-native-sixdee_test_lib
react-native-smartcall-videodemo
react-native-sp-test-common
react-native-sunmi-printer-hk
react-native-swal
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react-native-tejab41097-sample-library
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react-native-test-comlibrary
react-native-test-module-hhh
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react-native-test-view
react-native-testweb
react-native-ticker-tape
react-native-tilt-ble
react-native-tone-framework
react-native-tones
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react-native-transtracker-library
react-native-tvos
react-native-tvos-nz
react-native-ui-components-library
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FAQs
A low level parser for ANSI sequences.
The npm package anser receives a total of 963,773 weekly downloads. As such, anser popularity was classified as popular.
We found that anser demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 1 open source maintainer collaborating on the project.
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