Add support for the 'kern' table

This supports only the kern0 subtable type, and we should probably add a nice builder to make this a bit easier.
googlefonts · Oct 21, 2024 · 2e49402 · 2e49402
1 parent 528277e
commit 2e49402
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diff --git a/font-test-data/src/kern.rs b/font-test-data/src/kern.rs
@@ -0,0 +1,17 @@
+// from https://github.com/fonttools/fonttools/blob/729b3d2960efd3/Tests/ttLib/tables/_k_e_r_n_test.py#L9
+#[rustfmt::skip]
+pub static KERN_VER_0_FMT_0_DATA: &[u8] = &[
+    0x00, 0x00, // "0000 "  #  0: version=0
+    0x00, 0x01, // "0001 "  #  2: nTables=1
+    0x00, 0x00, // "0000 "  #  4: version=0 (bogus field, unused)
+    0x00, 0x20, // "0020 "  #  6: length=32
+    0x00,       // "00 "  #  8: format=0
+    0x01,       // "01 "  #  9: coverage=1
+    0x00, 0x03, // "0003 "  # 10: nPairs=3
+    0x00, 0x0C, // "000C "  # 12: searchRange=12
+    0x00, 0x01, // "0001 "  # 14: entrySelector=1
+    0x00, 0x06, // "0006 "  # 16: rangeShift=6
+    0x00, 0x04, 0x00, 0x0C, 0xFF, 0xD8, // "0004 000C FFD8 "  # 18: l=4, r=12, v=-40
+    0x00, 0x04, 0x00, 0x1C, 0x00, 0x28, // "0004 001C 0028 "  # 24: l=4, r=28, v=40
+    0x00, 0x05, 0x00, 0x28, 0xFF, 0xCE, // "0005 0028 FFCE "  # 30: l=5, r=40, v=-50
+];
diff --git a/font-test-data/src/lib.rs b/font-test-data/src/lib.rs
@@ -5,6 +5,7 @@ pub mod gdef;
 pub mod gpos;
 pub mod gsub;
 pub mod ift;
+pub mod kern;
 pub mod layout;
 
 pub static CMAP12_FONT1: &[u8] = include_bytes!("../test_data/ttf/cmap12_font1.ttf");