Fix the metrics of wide characters, making Extended families compatible with FontConfig’s “dual” width (#1247).

changes/10.4.0.md

@@ -1,3 +0,0 @@
- * Change the shape of Eng (`U+014A`) into "N with Hook", to follow Unicode code chart (#1239).
- * Increase shoulder arc thickness of lowercase `r` for better thickness contrast (#1243).
- * Fixed width and removal logic for Long Leftwards Arrow (`U+27F5`) and Long Rightwards Arrow (`U+27F6`) (#1245).

changes/11.0.0.md

@@ -0,0 +1,4 @@
+ * \[**Breaking**\] Fix the metrics of wide characters, making Extended families compatible with FontConfig’s “dual” width (#1247).
+ * \[**Breaking**\] Fixed width and removal logic for Long Leftwards Arrow (`U+27F5`) and Long Rightwards Arrow (`U+27F6`) (#1245).
+ * Change the shape of Eng (`U+014A`) into "N with Hook", to follow Unicode code chart (#1239).
+ * Increase shoulder arc thickness of lowercase `r` for better thickness contrast (#1243).

font-src/gen/finalize/index.js

@@ -31,11 +31,16 @@ function assignSubRank(glyphStore) {
 //  (AW > 0) have the same width. We use this method to validate whether our "Fixed" subfamilies
 //  are properly built.
 function validateMonospace(para, glyphStore) {
-	if (!para.forceMonospace) return;
 	let awSet = new Set();
 	for (const [u, g] of glyphStore.encodedEntries()) {
 		const aw = Math.round(g.advanceWidth || 0);
 		if (aw > 0) awSet.add(aw);
 	}
-	if (awSet.size > 1) throw new Error("Unreachable! Fixed variant has wide characters");
+	if (para.forceMonospace && awSet.size > 1) {
+		throw new Error("Unreachable! Fixed variant has wide characters");
+	}
+	if (!para.isQuasiProportional && awSet.size > 2) {
+		console.log(awSet);
+		throw new Error("Unreachable! Fixed variant has wide characters");
+	}
 }

font-src/meta/aesthetics.ptl

@@ -123,7 +123,7 @@ export : define [calculateMetrics para] : begin
 	define OneBalance : fallback para.onebalance 0
 
 	# derived metrics
-	define WideWidth0 : if para.isQuasiProportional (Width * 2) UPM
+	define WideWidth0 : if para.isQuasiProportional UPM (Width * 2)
 	define WideWidth1 : if (para.spacing >= 1) WideWidth0 Width
 	define WideWidth2 : if (para.spacing >= 2) WideWidth0 Width
 	define WideWidth3 : if (para.spacing >= 3) WideWidth0 Width

package-lock.json

@@ -1,6 +1,6 @@
 {
   "name": "iosevka",
-  "version": "10.4.0",
+  "version": "11.0.0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "iosevka",
-  "version": "10.4.0",
+  "version": "11.0.0",
   "main": "./font-src/index.js",
   "scripts": {
     "build": "node utility/ensure-verda-exists && verda -f verdafile.js",