[ucd/unihan] Implement simplified and traditional variant

Author: eyeplum

unic/ucd/unihan/src/lib.rs

@@ -19,6 +19,9 @@ extern crate unic_char_property;
 mod readings;
 pub use readings::{definition_of, mandarin_of};
 
+mod variants;
+pub use variants::{simplified_variant_of, traditional_variant_of};
+
 use unic_ucd_version::UnicodeVersion;
 
 mod pkg_info;

unic/ucd/unihan/src/variants.rs

@@ -0,0 +1,26 @@
+// Copyright 2012-2015 The Rust Project Developers.
+// Copyright 2017 The UNIC Project Developers.
+//
+// See the COPYRIGHT file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+pub fn simplified_variant_of(ch: char) -> Option<char> {
+    data::SIMPLIFIED_VARIANT.find(ch)
+}
+
+pub fn traditional_variant_of(ch: char) -> Option<char> {
+    data::TRADITIONAL_VARIANT.find(ch)
+}
+
+mod data {
+    use unic_char_property::tables::CharDataTable;
+    pub const SIMPLIFIED_VARIANT: CharDataTable<char> =
+        include!("../tables/simplified_variant_map.rsv");
+    pub const TRADITIONAL_VARIANT: CharDataTable<char> =
+        include!("../tables/traditional_variant_map.rsv");
+}

unic/ucd/unihan/tests/basic_tests.rs

@@ -10,7 +10,12 @@
 
 extern crate unic_ucd_unihan;
 
-use unic_ucd_unihan::{definition_of, mandarin_of};
+use unic_ucd_unihan::{
+    definition_of,
+    mandarin_of,
+    simplified_variant_of,
+    traditional_variant_of,
+};
 
 #[test]
 fn test_definition() {
@@ -23,3 +28,15 @@ fn test_mandarin() {
     assert_eq!(mandarin_of('\u{0001}'), None);
     assert_eq!(mandarin_of('\u{340c}'), Some("yí"));
 }
+
+#[test]
+fn test_simplified_variant() {
+    assert_eq!(simplified_variant_of('\u{0001}'), None);
+    assert_eq!(simplified_variant_of('\u{380f}'), Some('\u{37c6}'));
+}
+
+#[test]
+fn test_traditional_variant() {
+    assert_eq!(traditional_variant_of('\u{0001}'), None);
+    assert_eq!(traditional_variant_of('\u{37c6}'), Some('\u{380f}'));
+}