Nicolas Martyanoff

Contrarian software engineer. Hire me to solve your technical problems.

website: https://n16f.net
company: https://exograd.com
github: https://github.com/galdor

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Last Notes

2025-06-29 17:59:15 GMT

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frustrating sure, but mostly scary due to the quantity of software written in Go that may have subtle bugs due to these issues.

2025-06-29 16:10:17 GMT

Still more #Go horrifying discoveries: net/url is non-conforming, it will happily parse a URL where the authority does not contain a host, e.g. "http://:80". No it is not valid, RFC 3986 3.2. is pretty clear about it.
Worse, the net/http client will happily accept this kind of URL, defaulting to a local address but with an absolutely invalid Host header field set to ":80" in this example (see RFC 9110 7.2., the host is not optional).
As usual, developers do not read specifications.

2025-03-15 18:18:31 GMT

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DEFCUSTOM is for values customizable by the user. In modules, you have a lot of values which are not supposed to be customizable (e.g. regexps used by font-locks) but must be easy to redefine when you're working on the module.

2025-03-15 17:28:47 GMT

Let us add DEFAPARAMETER to the long list of features #Emacs Lisp is missing compared to #CommonLisp. ELisp only has DEFVAR, which does not modify the binding if it already exists. Perfect to keep a state. But for a lot of top-level values, you want DEFPARAMETER, which creates or updates a binding.
Module development with DEFVAR only is really frustrating, forced to manually call SETQ each time you want to change a value.