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/test/io_test_helper.hh b/test/io_test_helper.hh
new file mode 100644
index 0000000..ce191cf
--- /dev/null
+++ b/test/io_test_helper.hh
@@ -0,0 +1,18 @@
+#ifndef IO_TEST_HELPER_HH
+#define IO_TEST_HELPER_HH
+
+#include "io.hh" // IWYU pragma: export
+
+#include <cstddef>
+#include <memory>
+
+[[nodiscard]]
+std::unique_ptr<io::Reader> io_make_breaking(
+    std::unique_ptr<io::Reader> reader, size_t offset = 0,
+    io::ReadError error = io::ReadError::Error);
+
+[[nodiscard]]
+std::unique_ptr<io::Reader> io_make_max_block(
+    std::unique_ptr<io::Reader> reader, size_t max_block_size);
+
+#endif  // IO_TEST_HELPER_HH