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ANSI codes to HTML converter

Project description


  • It can be used either as module or as a command line tool.

  • Supports most ‘m’ codes (colors and attributes).

  • The apperance can be customized using styles in a very convenient and powerful way.

    • ANSI attributes are mapped to stylable HTML classes (ansi_yellow, ansi_bright…)

    • Text sequences with the same set of ANSI attributes are enclosed in a single span with those classes activated.

    • You can define styles for a class or for a certain combination of classes

    • You can define the style depending on the enclosing container so that different styles can coexist in a single document.

  • It has been test driven developed and back2back tested.

Usage as Python module

  • deansi.styleSheet(): returns the default stylesheet for the ANSI classes you can customize.

  • deansi.deansi(consoleText): returns the HTML conversion

The following example use them to build a simple console look of the output:

import deansi

html_template = """\
.ansi_terminal {{ background-color: #222; color: #cfc; }}
<div class="ansi_terminal">{ansiText}</div>
ansiInput = "\033[31mHello World!!\033[m"

print html_template.format(
    defaultStyle = deansi.styleSheet(),
    ansiText = deansi.deansi(ansiInput),

Command line use

deansi can be used as pipe based command line tool. A quite simple use, could be:

$ ls --color | > ls.html

Besides, we can use some options to modify its behaviour:

$ --help

usage: [-h] [-s FILE] [-t FILE] [--dark] [INPUT_FILE] [OUTPUT_FILE]

Converts coloured console output into equivalent HTML

positional arguments:
  INPUT_FILE            the console input to convert (default stdin)
  OUTPUT_FILE           the file where to drop the html output (default

optional arguments:
  -h, --help            show this help message and exit
  -s FILE, --style FILE
                        use FILE as stylesheet
  -t FILE, --template FILE
                        use FILE as html template
  --dark                use the dark background style

Customizing stylesheets

The default stylesheet looks like this:

.ansi_terminal { background-color: #222; color: #cfc; }
.ansi_terminal { white-space: pre; font-family: monospace; }
.ansi_black { color: black; }
.ansi_red { color: darkred; }
.ansi_green { color: darkgreen; }
.ansi_yellow { color: orange; }
.ansi_blue { color: darkblue; }
.ansi_magenta { color: purple; }
.ansi_cyan { color: darkcyan; }
.ansi_white { color: lightgray; }
.ansi_bright.ansi_black { color: gray; }
.ansi_bright.ansi_red { color: red; }
.ansi_bright.ansi_green { color: green; }
.ansi_bright.ansi_yellow { color: yellow; }
.ansi_bright.ansi_blue { color: blue; }
.ansi_bright.ansi_magenta { color: magenta; }
.ansi_bright.ansi_cyan { color: cyan; }
.ansi_bright.ansi_white { color: white; }
.ansi_bgblack { background-color: black; }
.ansi_bgred { background-color: red; }
.ansi_bggreen { background-color: green; }
.ansi_bgyellow { background-color: yellow; }
.ansi_bgblue { background-color: blue; }
.ansi_bgmagenta { background-color: magenta; }
.ansi_bgcyan { background-color: cyan; }
.ansi_bgwhite { background-color: white; }
.ansi_bright { font-weight: bold; }
.ansi_faint { opacity: .5; }
.ansi_italic { font-style: italic; }
.ansi_underscore { text-decoration: underline; }
.ansi_blink { text-decoration: blink; }
.ansi_reverse { border: 1pt solid; }
.ansi_hide { opacity: 0; }
.ansi_strike { text-decoration: line-through; }

Because of the cascading behaviour of CSS whichever style rules after the default ones, will override those ones. For example if you want to change the yellow color when the ansi bright attribute apply, instead of applying bold font you can say:

.ansi_yellow.ansi_bright { color: #FF7; font-weight: inherit; }

If you want several behaviours in the same html you can use css magic like that:

.my_own_ansi_enviroment .ansi_inverse { font-style: italic; border: none; }

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