September is the only month abbreviated with four letters

[eronconi]

Hello all,

I've noticed that month abbreviations hardcoded in include/spdlog/pattern_formatter-inl.h use three letters for all months except September, which is abbreviated with Sept.

This makes logs misaligned when the month changes to/from September, and makes logs misaligned to other logs created with *nix tools/sprintf which uses three letter abbreviations for all months.

Is there a particular reason for this? Thanks!

[tt4g]

The %b flag is defined only as “Abbreviated month name” and there is no requirement for three characters, so both Sep and Sept are correct.

https://github.com/gabime/spdlog/wiki/3.-Custom-formatting#pattern-flags

| %b | Abbreviated month name | "Aug" |

Use the %3!b flag if you want to align to 3 letters: https://github.com/gabime/spdlog/wiki/3.-Custom-formatting#aligning

[eronconi]

Thanks for the suggestion, I didn't thought to use alignment feature to truncate the name. It works great.

However, while there are no requirements on "Abbreviated month name", I still find quite odd to have that exception.

[gabime]

https://web.library.yale.edu/cataloging/months#:~:text=sept.%2Fset.,nov.