@example
(truncate-string-to-width "\tab\t" 12 4)
@result{} "ab"
-(truncate-string-to-width "\tab\t" 12 4 ?\ )
+(truncate-string-to-width "\tab\t" 12 4 ?\s)
@result{} " ab "
@end example
@end defun
all unused fonts as well.
@end defun
+@defvar face-font-rescale-alist
+This variable specifies scaling for certain faces. Its value should
+be a list of elements of the form
+
+@example
+(@var{fontname-regexp} . @var{scale-factor})
+@end example
+
+If @var{fontname-regexp} matches the font name that is about to be
+used, this says to choose a larger similar font according to the
+factor @var{scale-factor}. You would use this feature to normalize
+the font size if certain fonts are bigger or smaller than their
+nominal heights and widths would suggest.
+@end defvar
+
@node Face Functions
@subsection Functions for Working with Faces