1 Note that all \[charXXX] entity names have been removed from the font files.
2 They don't make sense for Unicode.
4 The following entity from the original troff manual (by Ossanna and
5 Kernighan) is unmapped:
7 bs shaded solid ball (Bell System logo, AT&T logo)
9 Character 0x002D has not been given a name because its Unicode name
10 HYPHEN-MINUS is so ambiguous that it is unusable for serious typographic
13 \[wp] has been mapped to 0x2118, because according to Unicode 4.1's
14 NamesList.txt, U+2118 SCRIPT CAPITAL P is really a Weierstrass `p',
15 neither SCRIPT not CAPITAL.
17 The following line could be added; \[space] is known to devps but is not
18 documented and not known to devdvi (actually, there is no space glyph within
23 devps maps \[a~] and `~' to `asciitilde', which is equivalent to 0x02DC, but
24 this glyph is just too small. We map them to 0x007E instead.
26 devps maps \[a^] and `^' to `circumflex', which is equivalent to 0x02C6, but
27 this glyph is just too small. We map them to 0x005E instead.
29 devps maps \[*U] to `Upsilon1', which is equivalent to 0x03D2. We map it to
32 devps maps \[*W] to `Omega', which is equivalent to either 0x2126 or 0x03A9.
35 devps maps \[*D] to `Delta', which is equivalent to either 0x2206 or 0x0394.
39 Adding Unicode characters
40 -------------------------
42 Assume you want to use a Unicode character not provided in the list, say
43 U+20AC. You need to do two things:
49 (the second column is computed as 24 * wcwidth(0x20AC)) to the file
50 R.proto, or, when groff is already installed, to the four fonts files in
51 $(prefix)/share/groff/<version>/font/devutf8/.
53 - In your source file, use the notation \[u20AC] to access it.