Hi, At Tue, 19 Feb 2002 19:51:54 +0530 (IST), Aravind Menon wrote:
> > Hi, > I do not exactly wish to do the entire handling of Indic script. We have > already modified a part of Xlib (the XDrawString and similar functions) to > handle input in a different manner when it is ISCII encoded (ISCII is an > 8-bit encoding for Indic scripts and is compatible with ascii). This > modification is, at best, ad hoc. I imagine your work is related to character -> glyph conversion. Is that right? > We wanted to introduce UTF-8 support for Indic scripts by > modifying lcUTF8.c and introducing appropriate converters in lcUniConv. These > converters convert UTF-8 encoded text into ISCII. The ISCII text is then > appropriately handled by the modified XDrawString. > I introduced a new locale 'DEVANAGARI', and wrote a UTF to ISCII > converter for it. When XmbDrawString is called with UTF encoded DEVANAGARI text, > the conversion is working fine, but the correct font is not getting loaded. In > fact, XCreateFontSet returns DEVANAGARI as a missing charset inspite of the fact > the required font is installed in the system. What font name you use? I imagine Devanagari will need more glyph codepoints than character codepoints. Since these X11 functions assume the character encoding to be *glyph* index, I think some radical redesign would be needed for X font mechanism to support Devanagari. It is because X's font mechanism including XFontStruct, XFontSet, and Xft all assume that character and glyph correspond one-to-one. I once have seen Indic ISCII fonts which, in reality, have more glyphs than ISCII codepoints. We need to have some orthodox codepoint for such expression forms. And, I remember these fonts have '-*-iso8859-1' names, which is a bad idea against the idea of FontSet. --- Tomohiro KUBOTA <[EMAIL PROTECTED]> http://www.debian.or.jp/~kubota/ "Introduction to I18N" http://www.debian.org/doc/manuals/intro-i18n/ _______________________________________________ I18n mailing list [EMAIL PROTECTED] http://XFree86.Org/mailman/listinfo/i18n
