A new commit to the ParseJS GitHub repository was made.
It fixes a critical bug related to the output the function returned.
The intended behavior.
parse_string usually returns an array that contains either a length-one-string (char) or symbol.
A symbol is inserted into the returned array IF a symbol is found. - I.e. if you pass the arguments: "test + test", ["test"] two symbols containing the description test will be inserted.
Otherwise, if a valid token isn't found, it will insert the current character
So, all together, if you pass in "test + test", ["test"], you should (and WILL) get [Symbol(test), ' ', '+', ' ', Symbol(test)].
The bug.
The bug is that "ghost" characters would be inserted into the output array if a token candidate didn't match the potential token in the string.
A visual demonstration of the bug.
This is a before and after of the bug fix:


Thanks for your attention!
Cheers!
Cheers!
Top comments (0)