From 95bc908ed25be9fa597c559791cbf6d5f5a6b8ed Mon Sep 17 00:00:00 2001
From: Jose Colon Rodriguez
Date: Wed, 14 Feb 2024 12:11:07 -0400
Subject: Removed readCodePoint and StreamingGraphemeIterator

---
 src/CodePoint.zig | 50 --------------------------------------------------
 1 file changed, 50 deletions(-)

(limited to 'src/CodePoint.zig')

diff --git a/src/CodePoint.zig b/src/CodePoint.zig
index e72823b..c03ecac 100644
--- a/src/CodePoint.zig
+++ b/src/CodePoint.zig
@@ -79,53 +79,3 @@ test "CodePointIterator peek" {
     try std.testing.expectEqual(@as(?CodePoint, null), iter.peek());
     try std.testing.expectEqual(@as(?CodePoint, null), iter.next());
 }
-
-/// `readCodePoint` returns the next code point code as a `u21` in the given reader, or null at end-of-input.
-pub fn readCodePoint(reader: anytype) !?u21 {
-    var buf: [4]u8 = undefined;
-
-    buf[0] = reader.readByte() catch |err| switch (err) {
-        error.EndOfStream => return null,
-        else => return err,
-    };
-
-    if (buf[0] < 128) return @as(u21, buf[0]);
-
-    const len: u3 = switch (buf[0]) {
-        0b1100_0000...0b1101_1111 => 2,
-        0b1110_0000...0b1110_1111 => 3,
-        0b1111_0000...0b1111_0111 => 4,
-        else => return error.InvalidUtf8,
-    };
-
-    const read = try reader.read(buf[1..len]);
-
-    if (read < len - 1) return error.InvalidUtf8;
-
-    return switch (len) {
-        2 => (@as(u21, (buf[0] & 0b00011111)) << 6) | (buf[1] & 0b00111111),
-
-        3 => (((@as(u21, (buf[0] & 0b00001111)) << 6) |
-            (buf[1] & 0b00111111)) << 6) |
-            (buf[2] & 0b00111111),
-
-        4 => (((((@as(u21, (buf[0] & 0b00000111)) << 6) |
-            (buf[1] & 0b00111111)) << 6) |
-            (buf[2] & 0b00111111)) << 6) |
-            (buf[3] & 0b00111111),
-
-        else => @panic("readCodePoint invalid code point length."),
-    };
-}
-
-test "readCodePoint" {
-    var buf = "abé😹".*;
-    var fis = std.io.fixedBufferStream(&buf);
-    const reader = fis.reader();
-
-    try std.testing.expectEqual(@as(u21, 'a'), (try readCodePoint(reader)).?);
-    try std.testing.expectEqual(@as(u21, 'b'), (try readCodePoint(reader)).?);
-    try std.testing.expectEqual(@as(u21, 'é'), (try readCodePoint(reader)).?);
-    try std.testing.expectEqual(@as(u21, '😹'), (try readCodePoint(reader)).?);
-    try std.testing.expectEqual(@as(?u21, null), try readCodePoint(reader));
-}
-- 
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