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bin/gems/Ascii85-2.0.1/README.md

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+**Status**: This project is feature-complete. With the exception of fixes to reported bugs, no further development will take place.
+
+# Ascii85
+
+## Description
+
+Ascii85 is a Ruby gem that provides methods for encoding/decoding Adobe's
+binary-to-text encoding of the same name.
+
+See the Adobe PostScript Language Reference ([archived version][PLRM]) page 131
+and [Wikipedia](https://en.wikipedia.org/wiki/Ascii85) for more information
+about the format.
+
+[PLRM]: https://web.archive.org/web/20161222092741/https://www.adobe.com/products/postscript/pdfs/PLRM.pdf
+
+
+## Installation
+
+`$ gem install Ascii85`
+
+> [!IMPORTANT]
+> Note that the gem name is capitalized.
+
+
+## Usage
+
+```ruby
+require 'ascii85'
+
+Ascii85.encode("Ruby")
+=> "<~;KZGo~>"
+
+Ascii85.decode("<~;KZGo~>")
+=> "Ruby"
+
+Ascii85.extract("Foo<~;KZGo~>Bar")
+=> ";KZGo"
+
+Ascii85.decode_raw(";KZGo")
+=> "Ruby"
+```
+
+In addition, `Ascii85.encode` can take a second parameter that specifies the
+length of the returned lines. The default is 80; use `false` for unlimited.
+
+`Ascii85.decode` expects the input to be enclosed in `<~` and `~>` — it
+ignores everything outside of these, while `Ascii85.decode_raw` assumes that
+the entire String passed in is encoded in Ascii85. If you need to, you can use
+`Ascii85.extract` to find and extract the first substring of the input that is
+enclosed by the `<~` and `~>` delimiters.
+
+The output of `Ascii85.decode` and `Ascii85.decode_raw` will be a String that
+has the `ASCII-8BIT` encoding, so you may have to use `String#force_encoding` to
+convert it to the desired encoding.
+
+For further options, see the [Documentation](https://www.rubydoc.info/gems/Ascii85/).
+
+
+## Command-line utility
+
+This gem includes `ascii85`, a command-line utility modeled after `base64` from
+the GNU coreutils. It can be used to encode/decode Ascii85 directly from the
+command-line:
+
+```
+Usage: ascii85 [OPTIONS] [FILE]
+Encodes or decodes FILE or STDIN using Ascii85 and writes to STDOUT.
+    -w, --wrap COLUMN                Wrap lines at COLUMN. Default is 80, use 0 for no wrapping
+    -d, --decode                     Decode the input
+    -h, --help                       Display this help and exit
+    -V, --version                    Output version information
+```
+
+
+## License
+
+Ascii85 is distributed under the MIT License. See the accompanying LICENSE file
+for details.