diff --git a/build.zig b/build.zig index 33a49af..b4bfc0e 100644 --- a/build.zig +++ b/build.zig @@ -38,6 +38,7 @@ pub fn build(b: *std.Build) void { .target = target, .optimize = optimize, }); + lib_unit_tests.root_module.addImport("ziglyph", ziglyph.module("ziglyph")); const run_lib_unit_tests = b.addRunArtifact(lib_unit_tests); diff --git a/src/parser.zig b/src/parser.zig index b285d3a..cb8bcc2 100644 --- a/src/parser.zig +++ b/src/parser.zig @@ -2,6 +2,8 @@ const std = @import("std"); const testing = std.testing; const Event = @import("event.zig").Event; const Key = @import("Key.zig"); +const CodePointIterator = @import("ziglyph").CodePointIterator; +const graphemeBreak = @import("ziglyph").graphemeBreak; const log = std.log.scoped(.parser); @@ -77,10 +79,27 @@ pub fn parse(input: []const u8) !Result { state = .escape; continue; }, - 0x20...0x7E => .{ .codepoint = b }, + // 0x20...0x7E => .{ .codepoint = b }, 0x7F => .{ .codepoint = Key.backspace }, - // TODO: graphemes - else => .{ .codepoint = b }, + else => blk: { + // TODO: iterate codepoints to find a complete grapheme. + // For now we are just taking the first codepoint and + // throwing a warning. I think we'll end up mapping a + // u21 to a look-aside table of graphemes, I just need + // to implement that table somewhere and give access to + // it here. + var iter: CodePointIterator = .{ .bytes = input[i..] }; + // return null if we don't have a valid codepoint + const cp = iter.next() orelse return .{ .event = null, .n = 0 }; + if (iter.next()) |next_cp| { + var break_state: u3 = 0; + if (!graphemeBreak(cp.code, next_cp.code, &break_state)) { + log.warn("grapheme support not implemented yet", .{}); + } + } + i += cp.len - 1; + break :blk .{ .codepoint = cp.code }; + }, }; return .{ .event = .{ .key_press = key }, @@ -512,3 +531,41 @@ test "parse: kitty: a without text reporting" { try testing.expectEqual(5, result.n); try testing.expectEqual(expected_event, result.event); } + +test "parse: single codepoint" { + const input = "🙂"; + const result = try parse(input); + const expected_key: Key = .{ + .codepoint = 0x1F642, + }; + const expected_event: Event = .{ .key_press = expected_key }; + + try testing.expectEqual(4, result.n); + try testing.expectEqual(expected_event, result.event); +} + +test "parse: single codepoint with more in buffer" { + const input = "🙂a"; + const result = try parse(input); + const expected_key: Key = .{ + .codepoint = 0x1F642, + }; + const expected_event: Event = .{ .key_press = expected_key }; + + try testing.expectEqual(4, result.n); + try testing.expectEqual(expected_event, result.event); +} + +test "parse: multiple codepoint grapheme" { + // TODO: this test is passing but throws a warning. Not sure how we'll + // handle graphemes yet + const input = "👩‍🚀"; + const result = try parse(input); + const expected_key: Key = .{ + .codepoint = 0x1F469, + }; + const expected_event: Event = .{ .key_press = expected_key }; + + try testing.expectEqual(4, result.n); + try testing.expectEqual(expected_event, result.event); +}