Terry J. Reedy <tjre...@udel.edu> added the comment: '│' is a bit taller that ascii bar '|'; hex(ord('│')) = '0x2502'. It is a bit heavy. In this Windows Firefox box it is slightly lighter than | but in IDLE with Source Code Pro, it is slightly darder. Worse is being centered instead of on one edge.
We would have to check it with multiple fixed-ascii-pitch fonts on multiple systems before using any non-ascii char. Does it always have the exact width of ascii ' ' or easier to check, ascii '|', so that is does not change the indent? This is easily tested in the Settings dialog Font tab sample box. Paste the following │││││││││││││││ ||||||||||||||| It passes with all but one of the Windows mono fonts I tried. I may ask a tk/tkinter question on SO about other possible options. Testing this one in code: if a: # Put 1st bar on 4th space. if b: │ if c: │ │ pass if d: │ pass if a: # Put 1st bar on 5th space. if b: │ if c: │ │ pass if d: │ pass if a: # Put 1st bar on 1st space. │ if b: │ │ if c: │ │ │ pass │ if d: │ │ pass The 2nd option looks best to me. The 3rd would be easier to program, as default tab indent would always be '│ '. In any case, copied code would not be runnable code. I would add this on the Option menu between Code Context and Line Numbers. I believe only updating the markers on demand would be much easier to program than dynamically updating them with each keystroke (checking key and whether whitespace in indent area). Before merging a PR (writen by someone else), someone other than me, such as Raymond, must test it in real use both for correctness, usefulness, and aesthetics. (I anticipate that I would fail it on the latter two.) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue46666> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com