pastel - Terminal output styling with intuitive and clean API.

•    Ruby

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Terminal output styling with intuitive and clean API that doesn't monkey patch String class. Pastel is minimal and focused to work in all terminal emulators.

terminal-themes string-styling ruby-gem terminal-emulators escape-sequences style colors

jsesc - Given some data, jsesc returns the shortest possible stringified & ASCII-safe representation of that data

•    Javascript

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For any input, jsesc generates the shortest possible valid printable-ASCII-only output. Here’s an online demo.jsesc’s output can be used instead of JSON.stringify’s to avoid mojibake and other encoding issues, or even to avoid errors when passing JSON-formatted data (which may contain U+2028 LINE SEPARATOR, U+2029 PARAGRAPH SEPARATOR, or lone surrogates) to a JavaScript parser or an UTF-8 encoder.

code-generation ecmascript stringify json ascii-safe unicode escape-sequences escape buffer map set string tool

paint - Ruby gem for ANSI terminal colors 🎨︎

•    Ruby

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Paint creates terminal colors and effects for you. It combines the strengths of term-ansicolor, rainbow, and similar projects into a simple to use, however still flexible terminal colors gem with no core extensions by default. and run bundle install.

ansi-colors rgb-colors fast true-color terminal ansi escape-sequences ruby-cli

ansiart2utf8 - Processes legacy BBS-style ANSI art (ACiDDraw, PabloDraw, etc

•    Go

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Processes legacy BBS-style ANSI art (ACiDDraw, PabloDraw, etc.) to UTF-8. Escape codes and line endings are processed for terminal friendliness.

ansi-art ansiart2utf8-processing ansi-colors escape-codes escape-sequences ansi-escape-codes ansi bbs text console console-application console-app command-line command-line-tool commandline

unescape-js - Unescape special characters encoded by JavaScript escape sequences

•    Javascript

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Unescape special characters encoded by JavaScript escape sequences

string escape-sequences javascript-escape-sequences unescape-js unescape special-characters

swift-commandlinekit - Framework supporting the development of command-line tools in Swift on macOS and Linux

•    Swift

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CommandLineKit defines different types of Flag subclasses for handling options (i.e. flags without parameters) and arguments (i.e. flags with parameters). Arguments are either singleton arguments (i.e. they have exactly one value) or they are repeated arguments (i.e. they have many values). Arguments are parameterized with a type which defines how to parse values. The framework natively supports int, double, string, and enum types, which means that in practice, just using the built-in flag classes are almost always sufficient. Nevertheless, the framework is extensible and supports arbitrary argument types. A flag is identified by a short name character and a long name string. At least one of the two needs to be defined. For instance, the "help" option could be defined by the short name "h" and the long name "help". On the command-line, a user could either use -h or --help to refer to this option; i.e. short names are prefixed with a single dash, long names are prefixed with a double dash.

cli readline escape-sequences command-line-tool flags command-line-arguments