Init commit

assembler/parse.ts

@@ -0,0 +1,44 @@
+type Span = {
+	start: [number, number];
+	end: [number, number];
+	text: string;
+};
+
+type Context = {
+
+};
+
+type Token = {
+	tag: 'opcode' | 'label' | 'string' | 'number' | 'register' | 'comment' | 'whitespace' | 'newline' | ''
+	source: Span
+};
+
+type Parser = (s: string, context: Context) => [Array<Token>, string] | null;
+
+const literal = (stringLiteral) => (s, context) => s.startsWith(stringLiteral) ? [{
+	tag: 'literal',
+	source: {
+		start: context.position,
+		end: [context.position[0], context.position[1] + stringLiteral.length],
+		text: stringLiteral
+	}
+}, s.slice(stringLiteral.length)] : null;
+const wordBoundary = (s, context) => s.startsWith(' ') ? [{tag: 'whitespace', source: {start: context.position, end: [context.position[0], context.position[1] + 1], text: ' '}}, s.slice(1)] : null;
+
+// const add: Parser = (s, context) => {
+// 	seq(reg4, reg3, reg).then((d, a, b) => {
+// 		return [{
+// 			tag: 'aluInstruction',
+
+// 		}];
+// 	});
+
+
+// 	return null;
+// };
+
+export function parse(text: string) {
+
+}
+
+