[FEATURE REQUEST] Improve dotfile parsing

[MrDevel0per]

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[MrDevel0per]

Mentioning issue #1, which may be fixed by improving parsing

[MrDevel0per]

For example, if I create a line that starts with function and not alias or #, I get an error with parsing. That is unacceptable - we may want to look at the ZSH parser impl.