On Fri, 08 Feb 2019 11:34:29 +0200 Eli Zaretskii via Unicode <[email protected]> wrote:
> > Date: Fri, 8 Feb 2019 06:40:44 +0000 > > From: Richard Wordingham via Unicode <[email protected]> > > > > > I, for one, am not to the slightest bit interested in abandoning > > > the character grid and allowing for proportional fonts. This > > > would just break a gazillion of things. > > > > The message I take from that and this thread in general is that > > Emacs and 'M-x term' are the route to take if one only has > > proportional fonts. > > Not sure why. There are terminal emulators out there which support > proportional fonts. Emacs is perhaps the only one whose terminal > emulator currently supports bidi more or less in full, but is that > related to proportional fonts? Emacs is the one I know that can be made to support Indic fonts. It's rather a big too for such a relatively minor task, which is why I implicitly called it a sledgehammer. > > What's the sledgehammer for Windows? > Not sure what you meant. "M-x term" doesn't work on Windows. So my question is, 'What do I use on Windows?' The application may be disproportionate to the function I use it for. > > Where do I find the specification for fixed-width fonts (is > > wcswidth() the core?) and how do I select the set of fonts to use? > > Do I need to use fontconfig where available? > That depends on the underlying C library and other facilities; > basically on your OS. AFAIK wcwidth will give the results consistent > with the UCD only if you use glibc. In Emacs, you have the functions > char-width and string-width that take their data from > EastAsianWidth.txt. Not sure about other facilities, and I don't > really understand what environment are you asking about -- are you > talking about C/C++ programs? I will give a concrete application. If I want to make a font that is interpretable for Tai Tham and maximally usable with VTE, what are the VTE-specific constraints for me to be able to use it for Tai Tham when using basic text utilities? For example, if VTE decides that for <cons, left-matra, above-matra> as two clusters <cons> and <left-matra, above-matra>, can I nevertheless position the above-matra above the <cons>? Richard.
