[glyphlist.txt] Add support for glyphlist.txt

gendata/glyphlist.awk

@@ -0,0 +1,9 @@
+# NOTE: This script must remain compatible with BSD awk and GNU awk
+
+BEGIN {
+  FS=";"
+}
+
+# /^[0-9A-F]{4};/ should work but FreeBSD awk as of 12.1 doesn't support {}
+# https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=54410
+/^[0-9A-Za-z._-]+;[0-9A-F]+/ { printf("%12c0x%s => Some(Cow::from(\"%s\")), %"12+maxglyphname-length($1)-length($2)"s%s\n", " ", $2, $1, "", "// "$3) }

gendata/glyphlist_footer.rs.template

@@ -0,0 +1,9 @@
+        _ => None,
+    }
+}
+
+impl<'a> GlyphNameOpt<'a> for LegacyAdobeGlyphList {
+    fn glyph_name_opt(c: char) -> Option<Cow<'a, str>> {
+        self::glyph_name_opt(c)
+    }
+}

gendata/glyphlist_header.rs.template

@@ -0,0 +1,7 @@
+pub struct LegacyAdobeGlyphList;
+
+use std::borrow::Cow;
+use super::GlyphNameOpt;
+
+fn glyph_name_opt<'a>(c: char) -> Option<Cow<'a, str>> {
+    match c as u32 {

gendata/longest_glyphlist.awk

@@ -0,0 +1,9 @@
+BEGIN {
+  FS=";"
+}
+
+/^[0-9A-Fa-z._]+;/ { maxglyphname=length($1) > maxglyphname ? length($1) : maxglyphname; }
+
+END {
+  print maxglyphname
+}