Escape strings containing font glyphs (Nerd Font compatibility) #221

Job	Run time
ycat	5s
Coverage	19s
Test in i386 (ubuntu-latest, 1.19)	27s
Test with -race (ubuntu-latest, 1.19)	15s
Test in i386 (ubuntu-latest, 1.20)	21s
Test with -race (ubuntu-latest, 1.20)	14s
Test in i386 (ubuntu-latest, 1.21)	13s
Test with -race (ubuntu-latest, 1.21)	26s
Test in i386 (windows-latest, 1.19)	49s
Test with -race (macos-latest, 1.19)	18s
Test in i386 (windows-latest, 1.20)	50s
Test with -race (macos-latest, 1.20)	19s
Test in i386 (windows-latest, 1.21)	1m 21s
Test with -race (macos-latest, 1.21)	22s
Test with -race (windows-latest, 1.19)	56s
Test with -race (windows-latest, 1.20)	2m 2s
Test with -race (windows-latest, 1.21)	2m 43s
	12m 0s

Provide feedback