[HN Gopher] What is the unit of a text column number? ___________________________________________________________________ What is the unit of a text column number? Author : amar-laksh Score : 14 points Date : 2021-10-19 11:41 UTC (1 days ago) (HTM) web link (www.foonathan.net) (TXT) w3m dump (www.foonathan.net) | CodeIsTheEnd wrote: | Two things: | | 1) I recently implemented truncating long lines for CLI tool and | went with a hybrid approach using both graphemes and virtual | columns -- I'd only truncate a line between graphemes, but when | counting how much space was used up I would use virtual columns. | In the case of something like , this means things tend to error | on the "safe" side of truncating a line too early if the virtual | column approach counts it as 4 columns wide rather than 2. | | 2) I wanted to test something with the scientist emoji and | managed to crash Ruby's repl, irb, simply by pasting it into the | repl and then backspacing over it. (It was clearly confused about | the position of the cursor, and the stacktrace pointed to an | error in a line_editor.rb file.) I was on Ruby 2.7.1, but it | looks like it's been fixed in 3.0.0! | wolverine876 wrote: | The title maybe should be enhanced to: "What is the Unicode unit | of a text column number?" ___________________________________________________________________ (page generated 2021-10-20 23:00 UTC)