1275970ScyNote that all \[charXXX] entity names have been removed from the font files. 2275970ScyThey don't make sense for Unicode. 3275970Scy 4275970ScyThe following entity from the original troff manual (by Ossanna and 5275970ScyKernighan) is unmapped: 6275970Scy 7275970Scy bs shaded solid ball (Bell System logo, AT&T logo) 8275970Scy 9330567SgordonCharacter 0x002D has not been given a name because its Unicode name 10275970ScyHYPHEN-MINUS is so ambiguous that it is unusable for serious typographic 11275970Scyuse. 12275970Scy 13275970Scy\[wp] has been mapped to 0x2118, because according to Unicode 4.1's 14275970ScyNamesList.txt, U+2118 SCRIPT CAPITAL P is really a Weierstrass `p', 15275970Scyneither SCRIPT not CAPITAL. 16275970Scy 17330567SgordonThe following line could be added; \[space] is known to devps but is not 18330567Sgordondocumented and not known to devdvi (actually, there is no space glyph within 19275970Scythe TeX system). 20275970Scy 21275970Scy space 24 0 0x0020 22275970Scy 23275970Scydevps maps \[a~] and `~' to `asciitilde', which is equivalent to 0x02DC, but 24275970Scythis glyph is just too small. We map them to 0x007E instead. 25275970Scy 26275970Scydevps maps \[a^] and `^' to `circumflex', which is equivalent to 0x02C6, but 27275970Scythis glyph is just too small. We map them to 0x005E instead. 28275970Scy 29275970Scydevps maps \[*U] to `Upsilon1', which is equivalent to 0x03D2. We map it to 30275970Scy0x03A5 instead. 31275970Scy 32275970Scydevps maps \[*W] to `Omega', which is equivalent to either 0x2126 or 0x03A9. 33275970ScyWe map it to 0x03A9. 34275970Scy 35275970Scydevps maps \[*D] to `Delta', which is equivalent to either 0x2206 or 0x0394. 36275970ScyWe map it to 0x0394. 37275970Scy 38275970Scy 39275970ScyAdding Unicode characters 40275970Scy------------------------- 41275970Scy 42275970ScyAssume you want to use a Unicode character not provided in the list, say 43275970ScyU+20AC. You need to do two things: 44275970Scy 45275970Scy- Add a line 46275970Scy 47275970Scy u20AC 24 0 0x20AC 48275970Scy 49275970Scy (the second column is computed as 24 * wcwidth(0x20AC)) to the file 50275970Scy R.proto, or, when groff is already installed, to the four fonts files in 51275970Scy $(prefix)/share/groff/<version>/font/devutf8/. 52275970Scy 53275970Scy- In your source file, use the notation \[u20AC] to access it. 54275970Scy