[ucd] Add new segment component

Add `unic-ucd-segment` component with initial implementation of three
main segmentation-related properties:
* `Grapheme_Cluster_Break`,
* `Word_Break`, and
* `Sentence_Break`.

Current implementation uses `char_property!()` macro for
`EnumeratedCharProperty` implementation, which only supports
`TotalCharProperty`.

Since the `Other` (abbr: `XX`) value in all these properties are notions
of non-existance of breaking property, we want to switch to
`PartialCharProperty` domain type and use `Option<enum>`. This is left
as a separate step because it needs changes to the macro.

unic/ucd/Cargo.toml

@@ -20,10 +20,11 @@ unic-ucd-age = { path = "age/", version = "0.6.0" }
 unic-ucd-bidi = { path = "bidi/", version = "0.6.0" }
 unic-ucd-case = { path = "case/", version = "0.6.0" }
 unic-ucd-category = { path = "category/", version = "0.6.0" }
-unic-ucd-ident = { path = "ident/", version = "0.6.0" }
 unic-ucd-core = { path = "core/", version = "0.6.0" }
+unic-ucd-ident = { path = "ident/", version = "0.6.0" }
 unic-ucd-name = { path = "name/", version = "0.6.0" }
 unic-ucd-normal = { path = "normal/", version = "0.6.0", features = ["unic-ucd-category"] }
+unic-ucd-segment = { path = "segment/", version = "0.6.0" }
 
 [dev-dependencies]
 unic-utils = { path = "../utils/", version = "0.6.0" }

unic/ucd/segment/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "unic-ucd-segment"
+version = "0.6.0"
+authors = ["The UNIC Project Developers"]
+repository = "https://github.com/behnam/rust-unic/"
+license = "MIT/Apache-2.0"
+description = "UNIC - Unicode Character Database - Segmentation Properties"
+keywords = ["text", "unicode", "character-property", "segmentation", "grapheme"]
+categories = ["internationalization", "text-processing", "parsing", "rendering"]
+
+# No tests/benches that depends on /data/
+exclude = []
+
+[badges]
+travis-ci = { repository = "behnam/rust-unic", branch = "master" }
+
+[dependencies]
+unic-char-property = { path = "../../char/property/", version = "0.6.0" }
+unic-char-range = { path = "../../char/range", version = "0.6.0" }
+unic-ucd-core = { path = "../core/", version = "0.6.0" }
+unic-utils = { path = "../../utils/", version = "0.6.0" }