Add parser support for keys and indices

source/ona/kym/Ast.zig

@@ -351,14 +351,6 @@ fn parse_factor(self: *Self) ParseError!Expression {
 							break: parse .{.table_literal = table_literal};
 						},
 
-						.symbol_bracket_left => {
-							self.tokenizer.skip_newlines();
-
-							if (self.tokenizer.token != .symbol_equals) {
-								return self.report("expected expression after identifier");
-							}
-						},
-
 						.symbol_period => {
 							self.tokenizer.step();
 
@@ -370,15 +362,11 @@ fn parse_factor(self: *Self) ParseError!Expression {
 							self.tokenizer.skip_newlines();
 
 							if (self.tokenizer.token != .symbol_equals) {
-								return self.report("expected `=` after key");
+								return self.report("expected `=` after symbol");
 							}
 
 							self.tokenizer.skip_newlines();
 
-							if (self.tokenizer.token == .end) {
-								return self.report("unexpected end after `=`");
-							}
-
 							try table_literal.push_one(.{
 								.value_expression = try self.parse_expression(),
 								.key_expression = .{.symbol_literal = identifier},
@@ -397,6 +385,41 @@ fn parse_factor(self: *Self) ParseError!Expression {
 							}
 						},
 
+						.symbol_bracket_left => {
+							self.tokenizer.step();
+
+							const index_expression = try self.parse_expression();
+
+							if (self.tokenizer.token != .symbol_bracket_right) {
+								return self.report("expected `]` expression");
+							}
+
+							self.tokenizer.skip_newlines();
+
+							if (self.tokenizer.token != .symbol_equals) {
+								return self.report("expected `=` after `]`");
+							}
+
+							self.tokenizer.skip_newlines();
+
+							try table_literal.push_one(.{
+								.value_expression = try self.parse_expression(),
+								.key_expression = index_expression,
+							});
+
+							switch (self.tokenizer.token) {
+								.symbol_comma => self.tokenizer.skip_newlines(),
+
+								.symbol_brace_right => {
+									self.tokenizer.skip_newlines();
+
+									break: parse .{.table_literal = table_literal};
+								},
+
+								else => return self.report("expected `,` or `}` after expression"),
+							}
+						},
+
 						else => return self.report("expected `}` or fields in table literal"),
 					}
 				}

source/ona/kym/tokens.zig

@@ -287,6 +287,20 @@ pub const Tokenizer = struct {
 					return;
 				},
 
+				'[' => {
+					self.token = .symbol_bracket_left;
+					cursor += 1;
+
+					return;
+				},
+
+				']' => {
+					self.token = .symbol_bracket_right;
+					cursor += 1;
+
+					return;
+				},
+
 				',' => {
 					self.token = .symbol_comma;
 					cursor += 1;