Re: xterm -fa weirdness (9.3 and 10.0 RC_1)

[RVP <rvp%SDF.ORG@localhost>]

On Thu, 4 Jan 2024, Rhialto wrote:

> I do have in my ~/.Xresources:
>
> xterm.vt100.faceName:		Lucida Console Semi-Condensed
> xterm.vt100.faceSize:		9
> XTerm.vt100.renderFont:         false
> UXTerm.vt100.renderFont:        true

You've put the instance-names (lower-case initial char.) in .Xresources
which will override resources specified using class-names (upper-case
initial char.), so:

> This works:
>
> xterm -xrm "xterm.vt100.renderFont: true" \
>      -xrm "xterm.vt100.faceSize: 12" \
>      -xrm "xterm.vt100.faceName: C64 Pro Mono"
>
> This should be equivalent, and in fact the preferred way (when specifying
> the font specifically on the command line), but doesn't work:
>
> xterm -xrm "xterm.vt100.renderFont: true" \
>      -xrm "xterm.vt100.faceSize: 12" \
>      -fa "C64 Pro Mono"

those 2 are not equivalent. The `-fa "C64 Pro Mono"' becomes, I believe,
`XTerm.VT100.faceName: C64 Pro Mono'; and class-names are a less specific
match compared to instance-names. This is hinted at in xterm(1):

	Some poorly‐designed resource files are too specific to
	allow the command‐line options to affect the relevant widget
	values.

and more fully (though, opaquely) explained in X(7), sec. RESOURCES:

	The rules (in order of precedence) are:

	1.   An entry that contains a matching component (whether
	name, class, or "?")  takes precedence over entries that
	elide the level (that is, entries that match the level in
	a loose binding).

	2.   An  entry with a matching name takes precedence over
	both entries with a matching class and entries that match
	using "?".  An entry with a matching class takes precedence
	over entries that match using "?".

	3.   An entry preceded by a tight binding takes precedence
	over entries preceded by a loose binding.

#2 and #3 are, I think, what apply here. Use the class-name in .Xresources:

```
--- .Xresources.orig	2024-01-05 07:50:56.289131905 +0000
+++ .Xresources	2024-01-05 07:51:36.842215151 +0000
@@ -1,4 +1,4 @@
-xterm.vt100.faceName:           Lucida Console Semi-Condensed
-xterm.vt100.faceSize:           9
+XTerm.vt100.faceName:           Lucida Console Semi-Condensed
+XTerm.vt100.faceSize:           9
 XTerm.vt100.renderFont:         false
 UXTerm.vt100.renderFont:        true
```

That should work.

-RVP