Add unicode general category lookup

Generate the lookup tables from UnicodeData.txt, do to that,
add gen_ugc, which uses csv, buffers, line, io and other modules
to do the job.

1 files changed, 18 insertions, 0 deletions

diff --git a/src/u.hh b/src/u.hh
index 101dec8..7cf835b 100644
--- a/src/u.hh
+++ b/src/u.hh
@@ -1,6 +1,8 @@
 #ifndef U_HH
 #define U_HH
 
+#include "ugc.hh" // IWYU pragma: export
+
 namespace u {
 
 enum class ReadError : uint8_t {
@@ -14,6 +16,22 @@ enum class ReadErrorReplace : uint8_t {
   Incomplete, // Too few bytes
 };
 
+enum class Version : uint8_t {
+  u6_2_0,
+  u8_0_0,
+  u10_0_0,
+  u11_0_0,
+  u12_1_0,
+  u13_0_0,
+  u14_0_0,
+  u15_0_0,
+  u15_1_0,
+  u16_0_0,
+  LATEST = u16_0_0,
+};
+
+GeneralCategory lookup_gc(uint32_t code, Version version = Version::LATEST);
+
 }  // namespace u
 
 #endif  // U_HH