Allow % formating like in C like languages or fstring like python

[gekkowrld]

Describe the feature

C like languages allow the user to "manipulate" strings using '%' e.g "%s" for strings, "%d" for decimals and so on. Python also has the same feature using .format() and f-strings.

Use Case

andika() currently only supports arbitrary number of arguments but no way of organizing them as per user needs.

Adding this will enable the user to do like:

fanya i = 0

fanya jina = jaza("Unaitwa nani rafiki? ")

wakati (i <= 5) {
		andika("Rafiki %s hii ni %d", jina, i)
		i++
}

(the same case with f-strings)

Proposed Solution

The golang and or python implementation details can be of use:

• Golang fmt
• Python f-string
• Formatted output (GNU)
• GNU C vprintf (used by printf and family) source code (for reference purposes)
• The Open Group Base Specifications Issue 7, 2018 edition for dprintf, fprintf, printf, snprintf, sprintf

This are previous implementation details, not all the formatting will be copied over.

Other Information

No response

Acknowledgements

• This feature might incur a breaking change
• I may be able to implement this feature request

Version used

v0.5.1 (compiled from source with modifications from #80)

Environment details (OS name and version, etc.)

GO VERSION: go version go1.22.1 linux/amd64
Kernel: 6.8.1-arch1-1
Shell: Bash
OS: Arch Linux x86_64