remove special-casing for arabic control characters affecting a span …

…of numbers, which are sometimes zero-width and sometimes not
JuliaStrings · May 4, 2018 · 2097dec · 2097dec
1 parent 0e6eba7
commit 2097dec
Show file tree

Hide file tree

Showing 2 changed files with 3,207 additions and 3,206 deletions.
diff --git a/data/charwidths.jl b/data/charwidths.jl
@@ -114,9 +114,11 @@ end
 for c in keys(CharWidths)
     cat = catcode(c)
 
-    # make sure format control character (category Cf) have width 0,
-    # except for the Arabic characters 0x06xx (see unicode std 6.2, sec. 8.2)
-    if cat==UTF8proc.UTF8PROC_CATEGORY_CF && c ∉ [0x0601,0x0602,0x0603,0x06dd]
+    # make sure format control character (category Cf) have width 0
+    # (some of these, like U+0601, can have a width in some cases
+    #  but normally act like prepended combining marks.  U+fff9 etc
+    #  are also odd, but have zero width in typical terminal contexts)
+    if cat==UTF8proc.UTF8PROC_CATEGORY_CF
         CharWidths[c]=0
     end