Merge 2023-02 LWG Motion 10

P2675R1 format's width estimation is too approximate and not forward compatible

Author: tkoeppe

source/utilities.tex

@@ -15026,20 +15026,16 @@
 The extended grapheme clusters of a string are defined by \UAX{29}.
 The estimated width of the following code points is 2:
 \begin{itemize}
-\item \ucode{1100} -- \ucode{115f}
-\item \ucode{2329} -- \ucode{232a}
-\item \ucode{2e80} -- \ucode{303e}
-\item \ucode{3040} -- \ucode{a4cf}
-\item \ucode{ac00} -- \ucode{d7a3}
-\item \ucode{f900} -- \ucode{faff}
-\item \ucode{fe10} -- \ucode{fe19}
-\item \ucode{fe30} -- \ucode{fe6f}
-\item \ucode{ff00} -- \ucode{ff60}
-\item \ucode{ffe0} -- \ucode{ffe6}
-\item \ucode{1f300} -- \ucode{1f64f}
-\item \ucode{1f900} -- \ucode{1f9ff}
-\item \ucode{20000} -- \ucode{2fffd}
-\item \ucode{30000} -- \ucode{3fffd}
+\item
+Any code point with the \tcode{East_Asian_Width="W"} or
+\tcode{East_Asian_Width="F"} Derived Extracted Property as described by
+\UAX{44}
+\item
+\ucode{4dc0} -- \ucode{4dff} (Yijing Hexagram Symbols)
+\item
+\ucode{1f300} -- \ucode{1f5ff} (Miscellaneous Symbols and Pictographs)
+\item
+\ucode{1f900} -- \ucode{1f9ff} (Supplemental Symbols and Pictographs)
 \end{itemize}
 The estimated width of other code points is 1.