A Python module and command-line utility for converting .ANS format ANSI art to HTML

Last update: Oct 16, 2022

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Overview

ansipants

A Python module and command-line utility for converting .ANS format ANSI art to HTML.

Installation

pip install ansipants

Command-line usage

python -m ansipants input.ans > output.html

For additional options, run python -m ansipants --help.

The output is a fragment of HTML, in UTF-8 encoding, intended to be inserted into a preformatted text element such as

...

. Further styling is up to you - for the proper MS-DOS experience, The Ultimate Oldschool PC Font Pack by VileR is recommended.

Python API

Example code:

from ansipants import ANSIDecoder

with open('input.ans', 'rt', encoding='cp437') as f:
    decoder = ANSIDecoder(f)

print(decoder.as_html())

class ansipants.ANSIDecoder(stream=None, width=80, strict=False)

Parameters:

stream - the ANSI input data as a file-like object. This should be opened for reading in text mode, which means you'll need to specify the appropriate encoding - for ANSI art created for DOS this will most likely be cp437.
width - the number of columns the text should wrap at
strict - If True, the decoder will raise an ansipants.ANSIDecodeError exception on any unrecognised or malformed escape codes; if False, it will skip past them.

ANSIDecoder.as_html()

Returns the HTML output as a string.

ANSIDecoder.as_html_lines()

Returns the HTML output as an iterator, yielding one line at a time.

Author

Matt Westcott [email protected]

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Comments

Underline control codes not supported

In the new ansi renderer, what I call "Amiga ansi" - escape codes used in Amiga specific text files are not rendered correctly. Even the Windows commandline does a decent job of this, so perhaps it is possible/relatively easy to implement?

Windows 11 command line:

Demozoo currently:

Native Amiga:

opened by glennlunder 4
Something wrong with newlines locations

There are some files with mystically wrong newlines locations. Especially, for this board.

For example, there's a file called HOLIC5.ANS. It currently looks in Demozoo like this:

However, BedroomLAN's converter can't render it at all for the unknown reason:

But there are some images from Defacto2, 16colors and other Ansilove-based resources, included Ansilove itself, where everything is totally fine: (this image took from Defacto2, there're some extra lines in the end of the file but the other part looks as it should)

Everything is also OK with the 'type' tool in Windows 10 (I'm sorry for this highlighted 'A'):

According on 16colors, this isn't an ansimation. When I'm trying to understand how the code works, there's some code between the latest '·' and '█▀▀▀█' which is the top of the word "BBS": [2H[s [u[0;34m where is an escape symbol.

There are some known codes for me - [0;34m is a blue text, [s and [u are something like cursor position manipulations. BUT [2H is @!#?@!. There are at least 7 matches of [2 in this file, but no one gives me any idea what it should be.

There are some more examples in the same BBS. All raw files are available in Defacto2 (MAY BE NSFW).

opened by m100bit 0

Releases(v0.1.2)

v0.1.2(Dec 20, 2021)
Implement escape sequence for underline

Ignore spaces in escape sequence arguments

Source code(tar.gz)
Source code(zip)
v0.1.1(Dec 6, 2021)
Add support for printable characters with codepoints < 0x20

Implement escape sequences for save/restore cursor

Fix: Use correct colour palette as per http://answers.google.com/answers/threadview/id/126097.html

Fix: Bright flag should not apply to background colour

Fix: Fix 'move cursor' escape sequence to be 1-based rather than 0-based

Source code(tar.gz)
Source code(zip)
v0.1(Dec 6, 2021)

Initial release.
Source code(tar.gz)
Source code(zip)

Owner

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