bbansi 0.2

Module with print and input that convert pseudo-BBCode into ANSI. It also includes a flip option that improves the .capitalize(), .lower(), .title(), and .upper() methods, and adds an invert option.

BBANSI

Module with custom print and input functions that convert pseudo-BBCode into ANSI escape codes. It also includes a flip function that improves the standard string methods (.capitalize(), .lower(), .title(), and .upper()) and adds an invert option, all while preserving ANSI codes.

Installation

From PyPI:

pip install bbansi

From APT as root or with sudo:

Add APT Key with curl:

curl -fsSL https://pablinet.github.io/apt/pablinet.gpg -o /etc/apt/trusted.gpg.d/pablinet.gpg```

Add APT Key with wget:

wget -O /etc/apt/trusted.gpg.d/pablinet.gpg https://pablinet.github.io/apt/pablinet.gpg

Update and install:

apt update && apt install python3-bbansi

If you encounter any errors, please check the project's GitHub repository.

Command-line Interface (APT Version)

The APT installation includes seven executable commands that accept BBANSI tags:

ef (emulates the echo command)

capital

capitalize

invert

lower

title

upper

For more information on the usage of these commands, use ef -h or --help.

Usage

from bbansi import flip, input, print

print (flip('[kb]wELCOME TO THIS EXAMPLE', 'invert'), reset=True)
name = input ('r [b]What is your name? ')
print (f'Your name is [171,15]{flip(name, 'capitalize')}[]')

Expected Output

Here's a preview of the output, both in its raw ANSI form and as it would appear in a terminal.

Raw Output:

'\x1b[5;1mWelcome to this example\x1b[0m'
'\x1b[1mWhat is your name?\x1b[0m pavel'
'Your name is \x1b[38;5;171;48;5;15mPavel

print function

The print function has been extended with four optional parameters: delay, wrap, reset and ansi.

• delay: The parameter delay must match the pattern /[0-9]+(\.[0-9]+)?/.
  When provided, the output is printed character by character with a delay of delay seconds between each character.

• wrap: A boolean. If set to True, it activates "word wrapper" mode by word.

• reset: When set to True, the ANSI reset sequence '\x1b\[0m' is automatically appended to the end of the output, ensuring that subsequent text does not retain any applied styling.

• ansi: When set to True, the ANSI escape codes are rendered explicitly in the output, similar to the behavior of the repr() function.

input function

The only addition to this customized input function is the ability to automatically reset styles and colors by prefixing the prompt message with -r.

Example: name \= input ('-r [b]What is your name?')

Tags

Tag open	Tag close	ANSI open	ANSI Close	Description
[b]¹	[/b]¹	'\x1b[1m'	'\x1b[22m'	Bold
[d]¹	[/d]¹	'\x1b[2m'	'\x1b[22m'	Dim
[i]¹	[/i]¹	'\x1b[3m'	'\x1b[23m'	Italic
[u]¹	[/u]¹	'\x1b[4m'	'\x1b[24m'	Underline
[k]¹	[/k]¹	'\x1b[5m'	'\x1b[25m'	Blink
[r]¹	[/r]¹	'\x1b[7m'	'\x1b[27m'	Reverse video
[h]¹	[/h]¹	'\x1b[8m'	'\x1b[8m'	Hidden text
[s]¹	[/s]¹	'\x1b[9m'	'\x1b[29m'	Strike out
[FG,BG]²	[-1,256]²	'\x1b[38;5;FG;48;5;BGm'	'\x1b[39;49m'	Text color and bacground color
[FG]²	[354]²	'\x1b[38;5;FGm'	'\x1b[39m'	Only text color
[,BG]²	[,-1]²	'\x1b[48;5;BGm'	'\x1b[49m'	Only background color
···	[]	···	'\x1b[0m'	All reset

¹Multiple ANSI styles can be combined, e.g., [biuk].
²The values for FG and BG must be integers within the inclusive range of 0 to 255. Any value outside this range will reset the corresponding color.

Escapes

\\ Backslash

\a Alert BELL

\b Backspace

\c Produce no further output

\e Escape

\f Form feed

\n New line

\r Carriage return

\t Horizontal tab

\v Vertical tab

\0NNN Byte with octal value NNN (1 to 3 digits)

\xHH Byte with hexadecimal value HH (1 to 2 digits)

[[ Opening square bracket

]] Closing square bracket

flip function

The flip function addresses a key limitation of standard string methods like .capitalize(), .lower(), and .title(): it correctly handles ANSI styling codes and non-alphabetic characters, preserving the codes while accurately modifying the text.

Examples

Standard string methods:

>>> string = '¡hello world!'
>>> print (string.capitalize())
¡hello world!  # The 'h' remains lowercase

>>> string = '\x1b[1mhello world\x1b[0m'
>>> print (repr(string.title()))
'\x1b[1Mhello World\x1b[0M'  # ANSI codes are incorrectly altered

>>> print (repr(string.upper()))
'\x1b[1MHELLO WORLD\x1b[0M'  # ANSI codes are affected

With the flip function:

>>> string = '¡hello world!'
>>> print (flip(string, 'capitalize')
¡Hello world!  # Correctly capitalizes the first alphabetic character

>>> string = '\x1b[1mhello WOrld\x1b[0m'
>>> print (flip(string, 'capital')
'\x1b[1mHello world\x1b[0m'  # Proper casing, ANSI preserved

>>> print (flip(string, 'invert')
'\x1b[1mHELLO woRLD\x1b[0m'  # Inverts current case

>>> print (flip(string, 'title'))
'\x1b[1mHello World\x1b[0m'  # Proper title case

>>> print (flip(string, 'upper'))
'\x1b[1mHELLO WORLD\x1b[0m'  # All caps, ANSI untouched

You can also use the first letter of each option (capitalize, invert, lower, title, or upper) for a more concise syntax.

>>> string = '¡hello world!'
>>> print (flip(string, 'c')
¡Hello world!  # Correctly capitalizes the first alphabetic character

>>> string = '\x1b[1mhello WOrld\x1b[0m'
>>> print (flip(string, 'c')
'\x1b[1mHello world\x1b[0m'  # Proper casing, ANSI preserved

>>> print (flip(string, 'i')
'\x1b[1mHELLO woRLD\x1b[0m'  # Inverts current case

>>> print (flip(string, 't'))
'\x1b[1mHello World\x1b[0m'  # Proper title case

>>> print (flip(string, 'u'))
'\x1b[1mHELLO WORLD\x1b[0m'  # All caps, ANSI untouched