From 32e14551a90e85000e41b3f0445d34d58a1431e4 Mon Sep 17 00:00:00 2001
From: Joel Klinghed <the_jk@spawned.biz>
Date: Wed, 10 Sep 2025 22:12:22 +0200
Subject: 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.
---
 test/u.cc | 42 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 42 insertions(+)

(limited to 'test/u.cc')

diff --git a/test/u.cc b/test/u.cc
index 933a4f2..de04e39 100644
--- a/test/u.cc
+++ b/test/u.cc
@@ -681,3 +681,45 @@ TEST(u16, invalid) {
     EXPECT_EQ(it, literal.end());
   }
 }
+
+TEST(u, lookup_gc) {
+  EXPECT_EQ(u::lookup_gc(0x41), u::GeneralCategory::LETTER_UPPERCASE);
+  EXPECT_EQ(u::lookup_gc(0x61), u::GeneralCategory::LETTER_LOWERCASE);
+  EXPECT_EQ(u::lookup_gc(0x1c5), u::GeneralCategory::LETTER_TITLECASE);
+  EXPECT_EQ(u::lookup_gc(0x374), u::GeneralCategory::LETTER_MODIFIER);
+  EXPECT_EQ(u::lookup_gc(0x34ff), u::GeneralCategory::LETTER_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0x483), u::GeneralCategory::MARK_NONSPACING);
+  EXPECT_EQ(u::lookup_gc(0x93b), u::GeneralCategory::MARK_SPACING_COMBINDING);
+  EXPECT_EQ(u::lookup_gc(0x20de), u::GeneralCategory::MARK_SPACING_ENCLOSING);
+
+  EXPECT_EQ(u::lookup_gc(0xa620), u::GeneralCategory::NUMBER_DIGIT);
+  EXPECT_EQ(u::lookup_gc(0xa6e6), u::GeneralCategory::NUMBER_LETTER);
+  EXPECT_EQ(u::lookup_gc(0xa830), u::GeneralCategory::NUMBER_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0xfe33), u::GeneralCategory::PUNCTUATION_CONNECTOR);
+  EXPECT_EQ(u::lookup_gc(0xfe58), u::GeneralCategory::PUNCTUATION_DASH);
+  EXPECT_EQ(u::lookup_gc(0xff08), u::GeneralCategory::PUNCTUATION_OPEN);
+  EXPECT_EQ(u::lookup_gc(0xff09), u::GeneralCategory::PUNCTUATION_CLOSE);
+  EXPECT_EQ(u::lookup_gc(0xab), u::GeneralCategory::PUNCTUATION_INITIAL_QUOTE);
+  EXPECT_EQ(u::lookup_gc(0xbb), u::GeneralCategory::PUNCTUATION_FINAL_QUOTE);
+  EXPECT_EQ(u::lookup_gc(0xff1a), u::GeneralCategory::PUNCTUATION_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0xd7), u::GeneralCategory::SYMBOL_MATH);
+  EXPECT_EQ(u::lookup_gc(0x58f), u::GeneralCategory::SYMBOL_CURRENCY);
+  EXPECT_EQ(u::lookup_gc(0x5e), u::GeneralCategory::SYMBOL_MODIFIER);
+  EXPECT_EQ(u::lookup_gc(0xf03), u::GeneralCategory::SYMBOL_OTHER);
+
+  EXPECT_EQ(u::lookup_gc(0x20), u::GeneralCategory::SEPARATOR_SPACE);
+  EXPECT_EQ(u::lookup_gc(0x2028), u::GeneralCategory::SEPARATOR_LINE);
+  EXPECT_EQ(u::lookup_gc(0x2029), u::GeneralCategory::SEPARATOR_PARAGRAPH);
+
+  EXPECT_EQ(u::lookup_gc(0xa), u::GeneralCategory::OTHER_CONTROL);
+  EXPECT_EQ(u::lookup_gc(0x202d), u::GeneralCategory::OTHER_FORMAT);
+  EXPECT_EQ(u::lookup_gc(0xd800), u::GeneralCategory::OTHER_SURROGATE);
+  EXPECT_EQ(u::lookup_gc(0xdbff), u::GeneralCategory::OTHER_SURROGATE);
+  EXPECT_EQ(u::lookup_gc(0xdfff), u::GeneralCategory::OTHER_SURROGATE);
+  EXPECT_EQ(u::lookup_gc(0xe000), u::GeneralCategory::OTHER_PRIVATE_USE);
+
+  EXPECT_EQ(u::lookup_gc(0xffffffff), u::GeneralCategory::OTHER_UNASSIGNED);
+}
-- 
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