Move around files so the repo will be organized as a monorepo.

packages/font/src/finalize/index.mjs

@@ -0,0 +1,42 @@
+import { Nwid, Wwid } from "@iosevka/glyph/relation";
+
+import { gcFont } from "./gc.mjs";
+import { finalizeGlyphs } from "./glyphs.mjs";
+
+function assignGrAndCodeRank(glyphStore, ...flatteners) {
+	for (const g of glyphStore.glyphs()) {
+		g.codeRank = 0xffffffff;
+		for (const c of glyphStore.flattenCodes(g, flatteners)) if (c < g.codeRank) g.codeRank = c;
+		g.grRank = 0;
+		for (let i = 0; i < flatteners.length; i++) if (flatteners[i].get(g)) g.grRank |= 1 << i;
+	}
+}
+function assignSubRank(glyphStore) {
+	let sr = 0;
+	for (const g of glyphStore.glyphs()) g.subRank = sr++;
+}
+
+// In FontConfig, a font is considered "monospace" if and only if all encoded non-combining
+// characters (AW > 0) have the same width. We use this method to validate whether our
+// "Fixed" subfamilies are properly built.
+function validateMonospace(para, glyphStore) {
+	let awSet = new Set();
+	for (const [u, n, g] of glyphStore.encodedEntries()) {
+		const aw = Math.round(g.advanceWidth || 0);
+		if (aw > 0) awSet.add(aw);
+	}
+	if (para.forceMonospace && awSet.size > 1) {
+		throw new Error("Unreachable! Fixed variant has wide characters");
+	}
+	if (!para.isQuasiProportional && !para.compLig && awSet.size > 2) {
+		throw new Error("Unreachable! Building monospace with more than 2 character widths");
+	}
+}
+export function finalizeFont(cache, para, glyphStore, excludedCodePoints, restFont) {
+	assignGrAndCodeRank(glyphStore, Nwid, Wwid);
+	assignSubRank(glyphStore);
+	glyphStore = gcFont(glyphStore, excludedCodePoints, restFont);
+	glyphStore = finalizeGlyphs(cache, para, glyphStore);
+	validateMonospace(para, glyphStore);
+	return glyphStore;
+}