Adding a Printer-resident Font

The following example illustrates the steps that you need to follow when you add a new PCF, TrueType, or Type1 printer-resident font to the configuration file.

Replace the font for displaying characters in the range 0x00000021 - 0x0000007f with a TrueType font instead of the currently configured PCF font.

Before adding a new font, look at various components in the configuration file that correspond to the currently configured font, as shown next.

FontNameAlias iso88591R  PCF  /usr/openwin/lib/X11/fonts/75dpi/courR18PCF.Z
FontNameAlias iso88591B  PCF  /usr/openwin/lib/X11/fonts/75dpi/courB18PCF.Z
.
.
.
FontGroup       iso88591         PCF       iso88591R iso88591B
.
.
.
MapCode2Font    0x00000020      0x0000007f      iso88591
.
.
.
CnvCode2Font iso88591R _xuiso88591 /usr/lib/lp/locale/$LANG/mp/xuiso88591.so
CnvCode2Font iso88591B _xuiso88591 /usr/lib/lp/locale/$LANG/mp/xuiso88591.so

Suppose you selected /usr/openwin/lib/locale/ja/X11/fonts/TT/HG-MinchoL.ttf as your candidate for doing the mapping in the en_US.UTF-8 locale. Because this is a Unicode character-mapped TrueType font file, in the mapping function within the .so module you only need to have a function that directly returns the incoming ucs-2 code points.

unsigned short _ttfjis0201(unsigned short ucs2) {
                 return(ucs2);
         }

Save this in a ttfjis0201.c file. Create a shared object as follows.

cc -G -Kpic -o ttfjis0201.so ttfjis0201.c

But if you are mapping a PCF file, such as /usr/openwin/lib/locale/ja/X11/fonts/75dpi/gotmrk20.pcf.Z, then look in the fonts.dir file in the /usr/openwin/lib/locale/ja/X11/fonts/75dpi/ directory. Become familiar with the encoding, corresponding to XLFD, which is:

-sun-gothic-medium-r-normal--22-200-75-75-c-100-jisx0201.1976-0

If jisx0201 is the encoding, prepare a shared object that maps from ucs-2 to jisx0201. You need to obtain the mapping table for creating the .so module (if one is not already provided). For a Unicode locale, find the mappings from the many charsets to Unicode under ftp.unicode.org/pub/MAPPINGS/. Follow these mappings(1)(1) in order to write a xu2jis0201.c file:

 unsigned short _xu2jis0201(unsigned short ucs2) {
                         if(ucs2 >= 0x20 && ucs2 <= 0x7d )
                                 return (ucs2);
                         if(ucs2==0x203e)
                                 return (0x7e);
                         if(ucs2 >= 0xff61 && ucs2 <= 0xff9f)
                                 return (ucs2 - 0xff60 + 0xa0);
                        return(0);
                 }

When you create a mapping file, include all the UCS-2 to jisx0201 cases.

cc  -G -o xu2jis0201.so xu2jis0201.c