IDML: one reader and writer for the paragraph Kashidas attribute

The paragraph Kashidas attribute is imported and exported by the Arabic
attribute code; the second copy in the paragraph defaults, which read and
wrote the same values, is gone.

crates/idml/src/export.rs

@@ -1360,9 +1360,6 @@ impl<'a> Ex<'a> {
         if let Some(v) = a.single_word_justify {
             el.set("SingleWordJustification", names::align_out(v));
         }
-        if let Some(v) = a.kashidas {
-            el.set("Kashidas", names::kashidas_out(v));
-        }
         n!(keep_with_next, "KeepWithNext");
         b!(keep_lines_together, "KeepLinesTogether");
         b!(keep_all_lines, "KeepAllLinesTogether");

crates/idml/src/import.rs

@@ -1286,7 +1286,6 @@ impl<'r> Importer<'r> {
         a.glyph_scale_max = frac("MaximumGlyphScaling");
         a.auto_leading = frac("AutoLeading");
         a.single_word_justify = e.prop("SingleWordJustification").and_then(|v| names::align_in(v.trim()));
-        a.kashidas = e.prop("Kashidas").and_then(|v| names::kashidas_in(v.trim()));
         a.keep_with_next = u("KeepWithNext");
         a.keep_lines_together = e.boolean("KeepLinesTogether");
         a.keep_all_lines = e.boolean("KeepAllLinesTogether");

crates/idml/src/names.rs

@@ -447,13 +447,6 @@ pub fn auto_size_in(s: &str) -> AutoSize {
         .find(|m| auto_size_out(*m) == s)
         .unwrap_or(AutoSize::Off)
 }
-/// Insert Kashidas (`Kashidas`): InDesign's default, or off.
-pub fn kashidas_out(on: bool) -> &'static str {
-    if on { "DefaultKashidas" } else { "KashidasOff" }
-}
-pub fn kashidas_in(s: &str) -> Option<bool> {
-    [true, false].into_iter().find(|on| kashidas_out(*on) == s)
-}
 
 /// Auto-size reference points in our 0..9 order (row-major, top-left first).
 pub const REF_POINTS: [&str; 9] = [