Bug: Negative index not correctly displayed in error message

[avidrucker]

Error message should be "Couldn't find element -1 in vector of length 4." but instead is "Couldn't find element 1 in vector of length 4."

Note: Opening up the stacktrace in Maria gives a more accurate error message of "Error: No item -1 in vector of length 4" so, it seems that the negative sign is getting stripped/trimmed/removed somewhere.

This issue's breadcrumbs start here I believe:

maria/friendly/src/maria/friendly/messages.cljs

Line 96 in 510a638

(str "Couldn't find element %1 in vector of length %2."

Minimum bug reproduction: https://www.maria.cloud/gist/be48e97150866eb979bf638bd47b5f46

Screenshot of example reproduction:

[avidrucker]

I'm feeling suspicious of the regex used in tokenize, though it's just a hunch.

[avidrucker]

It could potentially resolve the issue to add "%-" to the regex in tokenize, though I'm not sure what this will do to the rest of the codebase without running any tests. Here's an example where I modified the regex in tokenize: https://www.maria.cloud/gist/6e003b6e80ca0a963f5ab4e340b401f8