Add derived bold / italic / sans-serif / typewriter letters in Mathematical Alphanumeric Symbols block.

build-plans.toml

@@ -440,6 +440,33 @@ no-ligation = true
 snapshotFamily = 'iosevka-aile'
 quasiProportionalDiversity = 2
 
+[buildPlans.iosevka-aile.derivingVariants.mathtt.design]
+at = 'threefold'
+j = 'flat-hook-serifed'
+capital-i = 'serifed'
+capital-j = 'serifed'
+g = 'singlestorey'
+r = 'straight'
+a = 'doublestorey'
+d = 'toothed'
+u = 'toothed'
+t = 'flat-hook'
+
+[buildPlans.iosevka-aile.derivingVariants.mathtt.upright]
+i = 'serifed'
+l = 'serifed'
+f = 'flat-hook'
+
+[buildPlans.iosevka-aile.derivingVariants.mathtt.oblique]
+i = 'serifed'
+l = 'serifed'
+f = 'flat-hook'
+
+[buildPlans.iosevka-aile.derivingVariants.mathtt.italic]
+i = 'italic'
+l = 'italic'
+f = 'flat-hook-flat-tailed'
+
 [buildPlans.iosevka-aile.variants.design]
 at = 'fourfold'
 j = 'narrow'
@@ -450,18 +477,10 @@ r = 'narrow'
 a = 'doublestorey'
 d = 'toothed'
 u = 'toothed'
-
-[buildPlans.iosevka-aile.variants.upright]
 i = 'line'
 l = 'line'
-f = 'narrow'
 t = 'narrow'
-
-[buildPlans.iosevka-aile.variants.italic]
-i = 'line'
-l = 'line'
 f = 'narrow'
-t = 'narrow'
 
 [buildPlans.iosevka-aile.widths.normal]
 shape = 576
@@ -486,6 +505,10 @@ j = 'serifed'
 i = 'serifed'
 l = 'serifed'
 
+[buildPlans.iosevka-etoile.variants.oblique]
+i = 'serifed'
+l = 'serifed'
+
 [buildPlans.iosevka-etoile.variants.italic]
 i = 'italic'
 l = 'italic'
@@ -514,12 +537,40 @@ l = 'serifed'
 f = 'serifed'
 r = 'serifed'
 
+[buildPlans.iosevka-sparkle.variants.oblique]
+i = 'serifed'
+l = 'serifed'
+f = 'serifed'
+r = 'serifed'
+
 [buildPlans.iosevka-sparkle.variants.italic]
 i = 'italic'
 l = 'italic'
 f = 'tailed'
 r = 'top-serifed'
 
+[buildPlans.iosevka-sparkle.derivingVariants.mathtt.design]
+at = 'threefold'
+j = 'flat-hook-serifed'
+
+[buildPlans.iosevka-sparkle.derivingVariants.mathtt.upright]
+i = 'serifed'
+l = 'serifed'
+f = 'serifed'
+r = 'serifed'
+
+[buildPlans.iosevka-sparkle.derivingVariants.mathtt.oblique]
+i = 'serifed'
+l = 'serifed'
+f = 'serifed'
+r = 'serifed'
+
+[buildPlans.iosevka-sparkle.derivingVariants.mathtt.italic]
+i = 'italic'
+l = 'italic'
+f = 'tailed'
+r = 'top-serifed'
+
 [buildPlans.iosevka-sparkle.widths.normal]
 shape = 576
 menu  = 5

changes/4.0.0-beta.1.md

@@ -2,3 +2,4 @@
  * Fix broken serif shapes in Italic Cyrillic Small I (#717).
  * Make variant selectors for `m` and `u` have more effect on Cyrillic letters.
  * Fix incorrect serifs of Greek Small Rho (#718).
+ * Add derived bold / italic / sans-serif / typewriter letters in Mathematical Alphanumeric Symbols block.

font-src/glyphs/auto-build/composite.ptl

@@ -2,7 +2,7 @@
 $$include '../../meta/macros.ptl'
 
 import [mix linreg clamp fallback] from '../../support/utils'
-import [getGrMesh AnyDerivingCv CvDecompose] from "../../support/gr"
+import [getGrMesh AnyCv CvDecompose] from "../../support/gr"
 extern Map
 extern Set
 
@@ -32,7 +32,7 @@ glyph-block Autobuild-Enclosure-Shared : begin
 	define [EnsureComponentGlyphT gidPart fnBuildup] : begin
 		local rs : new Set
 		local gniPart : fnBuildup gidPart
-		local grs : AnyDerivingCv.query [query-glyph gidPart]
+		local grs : AnyCv.query [query-glyph gidPart]
 		if (para.enableCvSs && grs) : foreach gr [items-of grs] : begin
 			local relatedGidPart : gr.get [query-glyph gidPart]
 			local gniRelated : fnBuildup relatedGidPart
@@ -57,7 +57,7 @@ glyph-block Autobuild-Enclosure-Shared : begin
 			local demandDecomposable : para.enableCvSs && globallyDecomposable
 			foreach part [items-of parts] : if [query-glyph part] : begin
 				local g : query-glyph part
-				local relatedGlyphs : AnyDerivingCv.query g
+				local relatedGlyphs : AnyCv.query g
 				foreach gr [items-of relatedGlyphs] : if [query-glyph : gr.get g] : begin
 					if ([query-glyph : gr.get g].advanceWidth != g.advanceWidth)
 						set demandDecomposable false
@@ -67,7 +67,7 @@ glyph-block Autobuild-Enclosure-Shared : begin
 
 			jobsOrig.push { origJobGlyphGn unicode parts :: restInfo }
 			if para.enableCvSs : begin
-				local mesh : getGrMesh parts AnyDerivingCv query-glyph
+				local mesh : getGrMesh parts AnyCv query-glyph
 				foreach {gr fromParts toParts} [items-of mesh] : do
 					local fromGn : CircNameNoCheck unicode prefix fromParts suffix
 					local toGn   : CircName        unicode prefix toParts   suffix

font-src/glyphs/auto-build/transformed.ptl

@@ -2,16 +2,15 @@
 $$include '../../meta/macros.ptl'
 
 import [linreg clamp mix fallback] from '../../support/utils'
-import [AnyDerivingCv DotlessOrNot getGrTree getGrMesh CvDecompose] from "../../support/gr"
+import [AnyCv DotlessOrNot getGrTree getGrMesh CvDecompose] from "../../support/gr"
+extern Map
 extern Set
 
 glyph-module
 
-glyph-block Autobuild-Transformed : begin
+glyph-block Autobuild-Transformed-Shared : begin
 	glyph-block-import CommonShapes
 	glyph-block-import Common-Derivatives
-	glyph-block-import Recursive-Build : Fork Miniature
-	glyph-block-import Marks : markMiddle aboveMarkBot aboveMarkTop belowMarkBot belowMarkTop
 
 	define [suggestName _name] : begin
 		local name _name
@@ -27,6 +26,7 @@ glyph-block Autobuild-Transformed : begin
 		set map.(key) amended
 		return amended
 
+	glyph-block-export extendRelatedGlyphs
 	define [extendRelatedGlyphs records suffix] : begin
 		local relatedRecords {}
 		local relSets        {}
@@ -37,7 +37,7 @@ glyph-block Autobuild-Transformed : begin
 			suggestMappedName targetNameMap srcName (srcName + '+' + suffix)
 
 			local dstName : srcName + '+' + suffix
-			local tree : getGrTree srcName {DotlessOrNot AnyDerivingCv} query-glyph
+			local tree : getGrTree srcName {DotlessOrNot AnyCv} query-glyph
 			foreach [{gr origSrcName relSrcName} : items-of tree] : if [query-glyph relSrcName] : begin
 				local origDstName : suggestMappedName targetNameMap origSrcName (origSrcName + '+' + suffix)
 				local relDstName  : suggestMappedName targetNameMap relSrcName  (relSrcName + '+' + suffix)
@@ -51,6 +51,7 @@ glyph-block Autobuild-Transformed : begin
 
 		return { [records.concat relatedRecords] relSets targetNameMap }
 
+	glyph-block-export link-relations
 	define [link-relations relSets] : begin
 		local rs : new Set
 		foreach [{gr origDstName relDstName} : items-of relSets]
@@ -59,6 +60,13 @@ glyph-block Autobuild-Transformed : begin
 				if [query-glyph relDstName] : begin
 					[query-glyph origDstName].tryBecomeMirrorOf [query-glyph relDstName] rs
 
+glyph-block Autobuild-Transformed : begin
+	glyph-block-import CommonShapes
+	glyph-block-import Common-Derivatives
+	glyph-block-import Recursive-Build : Fork Miniature
+	glyph-block-import Marks : markMiddle aboveMarkBot aboveMarkTop belowMarkBot belowMarkTop
+	glyph-block-import Autobuild-Transformed-Shared : extendRelatedGlyphs link-relations
+
 	define [createSuperscripts _records] : begin
 		local {records relSets targetNameMap} : extendRelatedGlyphs _records 'sup'
 		local pendingGlyphs : records.map : [record] => record.1
@@ -480,6 +488,99 @@ glyph-block Autobuild-Transformed : begin
 		list 0x2148 'mathbb/i'
 		list 0x2149 'mathbb/j'
 
+glyph-block Autobuild-Transformed-Mathematical : begin
+	glyph-block-import CommonShapes
+	glyph-block-import Common-Derivatives
+	glyph-block-import Recursive-Build : Fork Miniature
+	glyph-block-import Autobuild-Transformed-Shared : extendRelatedGlyphs link-relations
+
+	define [createMathDerivedSeriesImpl groupName tfm _records] : begin
+		local { records relSets targetNameMap } : extendRelatedGlyphs _records groupName
+		local pendingGlyphs : records.map : [record] => record.1
+		local forked : Fork pendingGlyphs [para.reinit tfm]
+		foreach {unicode glyphid} [items-of records] : if [not : query-glyph targetNameMap.(glyphid)]
+			create-glyph targetNameMap.(glyphid) unicode : glyph-proc
+				include [forked.queryByName glyphid] AS_BASE ALSO_METRICS
+
+		link-relations relSets
+
+	define [boldGrade g] : begin
+		local pGrade : (900 - g) / 100
+		return : 900 - 100 * (2 / 25) * pGrade * pGrade
+	define [tfBold   a]     : begin [set a.shape.weight : boldGrade a.shape.weight]
+	define [tfItalic a]     : begin [set a.shape.slope 'italic']
+	define [tfSans   a]     : begin [set a.shape.serifs 'sans']
+	define [tfBoldItalic a] : begin [tfBold a] [tfItalic a]
+	define [tfSansBold   a]     : begin [tfSans a] [tfBold a]
+	define [tfSansItalic a]     : begin [tfSans a] [tfItalic a]
+	define [tfSansBoldItalic a] : begin [tfSans a] [tfBold a] [tfItalic a]
+	define [tfTypeWriter a] : begin
+		set a.shape.quasiProportionalDiversity 0
+		if (a.derivingVariants && a.derivingVariants.mathtt)
+			set a.variants a.derivingVariants.mathtt
+
+	define Digits     : Array.from '0123456789'
+	define UpperLatin : Array.from 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+	define LowerLatin : Array.from 'abcdefghijklmnopqrstuvwxyz'
+	define UpperGreek : Array.from 'ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡϴΣΤΥΦΧΨΩ∇'
+	define LowerGreek : Array.from 'αβγδεζηθικλμνξοπρςστυφχψω∂ϵϑϰϕϱϖ' # Some are missing though
+
+	define [CreateMathDerivatives groupName tfm base letters overrides] : begin
+		if recursive : return nothing
+		local jobs {}
+		local overrideMap : new Map (overrides || {})
+		foreach j [range 0 letters.length] : begin
+			local letter letters.(j)
+			local source : glyphStore.queryNameOfUnicode : letter.codePointAt 0
+			local dst : base + j
+			if [overrideMap.has letter] : set dst [overrideMap.get letter]
+			if source : jobs.push { dst source }
+
+		createMathDerivedSeriesImpl groupName tfm jobs
+
+	# Math bold
+	CreateMathDerivatives 'mathbf' tfBold 0x1D400 UpperLatin
+	CreateMathDerivatives 'mathbf' tfBold 0x1D41A LowerLatin
+	CreateMathDerivatives 'mathbf' tfBold 0x1D6A8 UpperGreek
+	CreateMathDerivatives 'mathbf' tfBold 0x1D6C2 LowerGreek
+	CreateMathDerivatives 'mathbf' tfBold 0x1D7CE Digits
+
+	# Math Italic
+	CreateMathDerivatives 'mathit' tfItalic 0x1D434 UpperLatin
+	CreateMathDerivatives 'mathit' tfItalic 0x1D44E LowerLatin : list { 'h' 0x210E }
+	CreateMathDerivatives 'mathit' tfItalic 0x1D6E2 UpperGreek
+	CreateMathDerivatives 'mathit' tfItalic 0x1D6FC LowerGreek
+
+	# Math Bold Italic
+	CreateMathDerivatives 'mathbi' tfBoldItalic 0x1D468 UpperLatin
+	CreateMathDerivatives 'mathbi' tfBoldItalic 0x1D482 LowerLatin
+	CreateMathDerivatives 'mathbi' tfBoldItalic 0x1D71C UpperGreek
+	CreateMathDerivatives 'mathbi' tfBoldItalic 0x1D736 LowerGreek
+
+	# Math Sans-serif
+	CreateMathDerivatives 'mathss' tfSans 0x1D5A0 UpperLatin
+	CreateMathDerivatives 'mathss' tfSans 0x1D5BA LowerLatin
+	CreateMathDerivatives 'mathss' tfSans 0x1D7E2 Digits
+
+	CreateMathDerivatives 'mathsi' tfSansItalic 0x1D608 UpperLatin
+	CreateMathDerivatives 'mathsi' tfSansItalic 0x1D622 LowerLatin
+
+	CreateMathDerivatives 'mathsb' tfSansBold 0x1D5D4 UpperLatin
+	CreateMathDerivatives 'mathsb' tfSansBold 0x1D5EE LowerLatin
+	CreateMathDerivatives 'mathsb' tfSansBold 0x1D756 UpperGreek
+	CreateMathDerivatives 'mathsb' tfSansBold 0x1D770 LowerGreek
+	CreateMathDerivatives 'mathsb' tfSansBold 0x1D7EC Digits
+
+	CreateMathDerivatives 'mathsz' tfSansBoldItalic 0x1D63C UpperLatin
+	CreateMathDerivatives 'mathsz' tfSansBoldItalic 0x1D656 LowerLatin
+	CreateMathDerivatives 'mathsz' tfSansBoldItalic 0x1D790 UpperGreek
+	CreateMathDerivatives 'mathsz' tfSansBoldItalic 0x1D7AA LowerGreek
+
+	# Math Typewriter
+	CreateMathDerivatives 'mathtt' tfTypeWriter 0x1D670 UpperLatin
+	CreateMathDerivatives 'mathtt' tfTypeWriter 0x1D68A LowerLatin
+	CreateMathDerivatives 'mathtt' tfTypeWriter 0x1D7F6 Digits
+
 glyph-block Autobuild-Rhotic : begin
 	glyph-block-import Marks : markFine
 	glyph-block-import CommonShapes

font-src/glyphs/common/derivatives.ptl

@@ -16,8 +16,11 @@ glyph-block Common-Derivatives : begin
 		foreach { kPrime prime } para.variants.primes : foreach h [prime.variants.values] : begin
 			local suffix : h.resolveFor para follow
 			if (suffix && transform && transform.(suffix)) : set suffix transform.(suffix)
-			if (suffix && h.tag && h.rank) : begin
+			if suffix : begin
-				[Cv h.tag h.rank].set g ([fallback name follow] + '.' + suffix)
+				local dstName : [fallback name follow] + '.' + suffix
+				local dst : glyphStore.queryByName dstName
+				if dst : g.dependsOn dst
+				if (h.tag && h.rank) : [Cv h.tag h.rank].set g dstName
 
 	define [select-variant] : params [name unicode [to-name name] transform [follow name]] : begin
 		if [not : glyph-is-needed name] : return nothing

font-src/index.js

@@ -13,14 +13,14 @@ const ApplyLigationData = require("./support/ligation-data");
 const { createGrDisplaySheet } = require("./support/gr");
 
 module.exports = async function main(argv) {
-	const para = await getParameters(argv);
+	const paraT = await getParameters();
-	const { font, glyphStore } = BuildFont(para);
+	const { font, glyphStore } = BuildFont(paraT(argv));
 	if (argv.oCharMap) await saveCharMap(argv, glyphStore);
 	if (argv.o) await saveTTF(argv, font);
 };
 
 // Parameter preparation
-async function getParameters(argv) {
+async function getParameters() {
 	const PARAMETERS_TOML = path.resolve(__dirname, "../params/parameters.toml");
 	const WEIGHTS_TOML = path.resolve(__dirname, "../params/shape-weight.toml");
 	const WIDTHS_TOML = path.resolve(__dirname, "../params/shape-width.toml");
@@ -38,6 +38,7 @@ async function getParameters(argv) {
 	const rawVariantsData = await tryParseToml(VARIANTS_TOML);
 	const rawLigationData = await tryParseToml(LIGATIONS_TOML);
 
+	function reinit(argv) {
 		let para = Parameters.init(parametersData, argv);
 		VariantData.apply(rawVariantsData, para, argv);
 		ApplyLigationData(rawLigationData, para, argv);
@@ -54,7 +55,15 @@ async function getParameters(argv) {
 			width: argv.menu.width - 0,
 			slope: argv.menu.slope
 		};
+
+		para.reinit = function (tf) {
+			const argv1 = JSON.parse(JSON.stringify(argv));
+			tf(argv1, argv);
+			return reinit(argv1);
+		};
 		return para;
+	}
+	return reinit;
 }
 
 async function tryParseToml(str) {

font-src/support/parameters.js

@@ -24,6 +24,7 @@ function apply(sink, parametersData, styles, blendArgs) {
 	for (const item of styles) intro(parametersData, item, blendArgs, sink);
 }
 
+// eslint-disable-next-line complexity
 function intro(source, style, blendArgs, sink) {
 	let hive = source[style];
 	if (!hive) return;

verdafile.js

@@ -166,7 +166,7 @@ const FontInfoOf = computed.group("metadata:font-info-of", async (target, fileNa
 	return {
 		name: fileName,
 		variants: bp.variants || null,
-		ligations: bp["ligations"] || null,
+		derivingVariants: bp.derivingVariants,
 		featureControl: {
 			noCvSs: bp["no-cv-ss"] || false,
 			noLigation: bp["no-ligation"] || false