🚀 Deploy v2.4.1

* Fix eslint error

* Add repository to package.json

* Remove unused dependencies

* Update dev eslint deps

.eslintrc.js

@@ -1,17 +1,14 @@
 module.exports = {
   env: {
     es6: true,
-    node: true
+    node: true,
   },
-  extends: 'eslint:recommended',
+  extends: ['eslint:recommended', 'prettier'],
   parserOptions: {
-    sourceType: 'module'
+    sourceType: 'module',
   },
   rules: {
-    indent: ['error', 2],
     'linebreak-style': ['error', 'unix'],
-    quotes: ['error', 'single'],
-    semi: ['error', 'always'],
-    'no-console': 'off'
-  }
-};
+    'no-console': 'off',
+  },
+}

.gitignore

@@ -1,5 +1,5 @@
 build
 node_modules
 .idea
-.vscode/launch.json
+.vscode
 .DS_Store

.prettierrc

@@ -1,4 +1,6 @@
 {
-  "semi": true,
-  "singleQuote": true
+  "semi": false,
+  "singleQuote": true,
+  "trailingComma": "all",
+  "arrowParens": "avoid"
 }

README.md

@@ -20,6 +20,8 @@ characters properly.
 
 <img src="./images/caret-position.gif" />
 
+## 👀 <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/normal/index.html">Click here to see preview images of all ligatures</a>
+
 With the awesome help from [Mark Skelton](https://github.com/mskelton), we now have the full set of ligatures for
 the following fonts. Thanks Mark, and thanks to all of you who have been patiently waiting for these ligatures to be completed.
 

build.bat

@@ -31,4 +31,6 @@ if not exist .\ligature\%lig%\glyphs\* exit /b
 ttx -f .\original\%otf%.otf
 node index.js %otf% %flags%
 ttx -f .\build\%lig%.ttx
+fonttools feaLib -v -o ".\build\%lig%.otf" .\features\default.fea ".\build\%lig%.otf"
+
 exit /b

build.sh

@@ -16,11 +16,13 @@ build_font() {
         return
     fi
 
-    echo Building $1
+    echo Building "$1"
     ttx -f "./original/$otf.otf"
-    node index.js $otf $flags
+    node index.js "$otf" "$flags"
 
-    ttx -f ./build/$1.ttx
+    ttx -f "./build/$1.ttx"
+
+    fonttools feaLib -v -o "./build/$1.otf" ./features/default.fea "./build/$1.otf"
 }
 
 flags=
@@ -32,10 +34,10 @@ fi
 if [ -n "$1" ]
 then
     # build specified font
-    build_font $1 $flags
+    build_font "$1" "$flags"
 else
     # build all available fonts
     for d in ./ligature/*/ ; do
-        build_font $(basename $d) $flags
+        build_font "$(basename "$d")" "$flags"
     done
 fi

calt.js

@@ -0,0 +1,65 @@
+const fs = require('fs')
+
+const rules = [
+  '',
+  `
+lookup 1 {
+  sub 1 by glyph;
+} 1;`,
+  `
+lookup 1_2 {
+  ignore sub 1 1' 2;
+  ignore sub 1' 2 2;
+  sub 1.spacer 2' by glyph;
+  sub 1'       2  by 1.spacer;
+} 1_2;`,
+  `
+lookup 1_2_3 {
+  ignore sub 1 1' 2 3;
+  ignore sub 1' 2 3 3;
+  sub 1.spacer 2.spacer 3' by glyph;
+  sub 1.spacer 2'       3  by 2.spacer;
+  sub 1'       2        3  by 1.spacer;
+} 1_2_3;`,
+  `
+lookup 1_2_3_4 {
+  ignore sub 1 1' 2 3 4;
+  ignore sub 1' 2 3 4 4;
+  sub 1.spacer 2.spacer 3.spacer 4' by glyph;
+  sub 1.spacer 2.spacer 3'       4  by 3.spacer;
+  sub 1.spacer 2'       3        4  by 2.spacer;
+  sub 1'       2        3        4  by 1.spacer;
+} 1_2_3_4;`,
+]
+
+const gencalt = ligatures => {
+  let calt = 'feature calt {\n'
+  const ligs = {}
+
+  ligatures
+    .filter(l => !!l.name.match(/\.liga$/) || l.name !== l.glyph)
+    .map(l => l.glyph)
+    .sort((a, b) => {
+      const length = b.split('_').length - a.split('_').length
+      if (length !== 0) return length
+      return a < b ? -1 : 1
+    })
+    .forEach(g => {
+      g.split('.')
+        .slice(0, 1)
+        .forEach(l => {
+          if (ligs[l]) return
+          ligs[l] = true
+          const c = l.split('_')
+          let rule = rules[c.length]
+          rule = rule
+            .replace(/\d/g, m => c[parseInt(m) - 1])
+            .replace(/glyph/g, g)
+          calt += rule + '\n'
+        })
+    })
+
+  return calt + '\n} calt;\n'
+}
+
+exports.gencalt = gencalt

features/.gitignore

@@ -0,0 +1 @@
+calt.fea

features/default.fea

@@ -0,0 +1,212 @@
+languagesystem DFLT dflt;
+languagesystem latn dflt;
+
+lookup lookup_0 {
+sub zero by zero.num;
+sub one by one.num;
+sub two by two.num;
+sub three by three.num;
+sub four by four.num;
+sub five by five.num;
+sub six by six.num;
+sub seven by seven.num;
+sub eight by eight.num;
+sub nine by nine.num;
+sub slash by fraction;
+sub fraction by fraction.afrc;
+} lookup_0;
+
+lookup lookup_1 {
+sub zero by zero.den;
+sub one by one.den;
+sub two by two.den;
+sub three by three.den;
+sub four by four.den;
+sub five by five.den;
+sub six by six.den;
+sub seven by seven.den;
+sub eight by eight.den;
+sub nine by nine.den;
+sub slash by fraction;
+} lookup_1;
+
+lookup lookup_2 {
+sub L periodcentered by Ldot;
+sub l periodcentered by ldot;
+} lookup_2;
+
+
+feature case {
+sub guillemotleft by guillemotleft.cap;
+sub guillemotright by guillemotright.cap;
+sub guilsinglleft by guilsinglleft.cap;
+sub guilsinglright by guilsinglright.cap;
+sub parenleft by parenleft.cap;
+sub parenright by parenright.cap;
+sub bracketleft by bracketleft.cap;
+sub bracketright by bracketright.cap;
+sub braceleft by braceleft.cap;
+sub braceright by braceright.cap;
+} case;
+
+feature dnom {
+sub zero by zero.den;
+sub one by one.den;
+sub two by two.den;
+sub three by three.den;
+sub four by four.den;
+sub five by five.den;
+sub six by six.den;
+sub seven by seven.den;
+sub eight by eight.den;
+sub nine by nine.den;
+} dnom;
+
+feature frac {
+lookup frac0 {
+	sub [zero one two three four five six seven eight nine] slash' lookup lookup_0 [zero one two three four five six seven eight nine] ;
+} frac0;
+lookup frac1 {
+	ignore sub [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] fraction' ;
+	ignore sub fraction' [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] ;
+	sub [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] fraction' lookup lookup_0 [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] ;
+} frac1;
+lookup frac2 {
+	sub [zero one two three four five six seven eight nine]' lookup lookup_0 fraction.afrc ;
+	sub fraction.afrc [zero one two three four five six seven eight nine]' lookup lookup_1 ;
+} frac2;
+lookup frac3 {
+	sub one.num fraction.afrc two.den by onehalf;
+	sub one.num fraction.afrc three.den by onethird;
+	sub one.num fraction.afrc four.den by onequarter;
+	sub one.num fraction.afrc five.den by onefifth;
+	sub one.num fraction.afrc six.den by onesixth;
+	sub one.num fraction.afrc eight.den by oneeighth;
+	sub two.num fraction.afrc three.den by twothirds;
+	sub two.num fraction.afrc five.den by twofifths;
+	sub three.num fraction.afrc four.den by threequarters;
+	sub three.num fraction.afrc five.den by threefifths;
+	sub three.num fraction.afrc eight.den by threeeighths;
+	sub four.num fraction.afrc five.den by fourfifths;
+	sub five.num fraction.afrc six.den by fivesixths;
+	sub five.num fraction.afrc eight.den by fiveeighths;
+	sub seven.num fraction.afrc eight.den by seveneighths;
+} frac3;
+} frac;
+
+feature locl {
+script latn;
+language CAT ;
+sub l' lookup lookup_2 periodcentered' lookup lookup_2 l ;
+sub L' lookup lookup_2 periodcentered' lookup lookup_2 L ;
+} locl;
+
+feature numr {
+sub zero by zero.num;
+sub one by one.num;
+sub two by two.num;
+sub three by three.num;
+sub four by four.num;
+sub five by five.num;
+sub six by six.num;
+sub seven by seven.num;
+sub eight by eight.num;
+sub nine by nine.num;
+} numr;
+
+feature rupa {
+sub R p by R_p;
+} rupa;
+
+feature ss01 {
+sub registered by registered.alt;
+} ss01;
+
+feature salt {
+lookup salt0 {
+	sub registered by registered.alt;
+} salt0;
+lookup salt1 {
+	sub colon by colon.alt;
+} salt1;
+lookup salt2 {
+	sub bullet by bullet.alt;
+} salt2;
+lookup salt3 {
+	sub asterisk by asterisk.alt;
+} salt3;
+lookup salt4 {
+	sub zero by zero.alt;
+} salt4;
+lookup salt5 {
+	sub underscore by underscore.alt;
+} salt5;
+lookup salt6 {
+	sub [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] slash' lookup lookup_1 [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] ;
+} salt6;
+} salt;
+
+feature sinf {
+sub zero by zero.inf;
+sub one by one.inf;
+sub two by two.inf;
+sub three by three.inf;
+sub four by four.inf;
+sub five by five.inf;
+sub six by six.inf;
+sub seven by seven.inf;
+sub eight by eight.inf;
+sub nine by nine.inf;
+} sinf;
+
+feature ss03 {
+sub colon by colon.alt;
+} ss03;
+
+feature ss04 {
+sub bullet by bullet.alt;
+} ss04;
+
+feature ss05 {
+sub asterisk by asterisk.alt;
+} ss05;
+
+feature ss07 {
+sub zero by zero.alt;
+} ss07;
+
+feature ss08 {
+sub underscore by underscore.alt;
+} ss08;
+
+feature ss09 {
+sub [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] slash' lookup lookup_1 [zero one two three four five six seven eight nine zero.num one.num two.num three.num four.num five.num six.num seven.num eight.num nine.num zero.den one.den two.den three.den four.den five.den six.den seven.den eight.den nine.den] ;
+} ss09;
+
+feature subs {
+sub zero by zero.inf;
+sub one by one.inf;
+sub two by two.inf;
+sub three by three.inf;
+sub four by four.inf;
+sub five by five.inf;
+sub six by six.inf;
+sub seven by seven.inf;
+sub eight by eight.inf;
+sub nine by nine.inf;
+} subs;
+
+feature subs {
+sub zero by zero.sup;
+sub one by one.sup;
+sub two by two.sup;
+sub three by three.sup;
+sub four by four.sup;
+sub five by five.sup;
+sub six by six.sup;
+sub seven by seven.sup;
+sub eight by eight.sup;
+sub nine by nine.sup;
+} subs;
+
+include(calt.fea);

genpreview.js

@@ -0,0 +1,85 @@
+const fs = require('fs')
+const { createCanvas } = require('canvas')
+
+const width = 64
+const height = 48
+const weight = 300
+
+const map = {
+  ampersand: '&',
+  bar: '|',
+  colon: ':',
+  equal: '=',
+  exclam: '!',
+  greater: '>',
+  hyphen: '-',
+  less: '<',
+  plus: '+',
+  question: '?',
+  slash: '/',
+  underscore: '_',
+  w: 'w',
+}
+
+function generateLigaturePreview(style, filename) {
+  const ligature = filename.split('.').slice(0, 1)[0]
+  const chars = ligature.split('_')
+
+  const text = chars.reduce((t, c) => t + map[c], '')
+
+  const canvas = createCanvas(width, height)
+  const context = canvas.getContext('2d')
+
+  context.fillStyle = '#000'
+  context.fillRect(0, 0, width, height)
+
+  context.font = `${weight} ${style} 18pt "Operator Mono SSm Lig"`
+  context.textAlign = 'center'
+  context.fillStyle = '#fff'
+  context.text = text
+  context.fillText(text, 32, 32)
+
+  const buffer = canvas.toBuffer('image/png')
+  console.log(ligature)
+  fs.writeFileSync(`./images/preview/${style}/${ligature}.png`, buffer)
+
+  return { text, ligature, filename: `${ligature}.png` }
+}
+
+function generate(style, filenames) {
+  let html = `<html><head>
+  <style>
+    body { background-color: #000; color: #fff; font-family: sans-serif; margin: 16px;}
+    a { color: #fff; text-decoration: none; padding: 4px;}
+    a.active {color: #000; background-color: #fff;}
+    .container { display: grid;  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
+    .ligature { display: flex; flex-direction: column; align-items: center; margin: 8px; }
+  </style>
+  </head>
+  <body>
+    <h1>Operator Mono Ligatures</h1>
+    <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/normal/index.html" class="${
+      style === 'normal' ? 'active' : ''
+    }">Normal</a> |
+    <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/italic/index.html" class="${
+      style === 'italic' ? 'active' : ''
+    }">Italic</a>
+    <div class="container">
+  `
+
+  filenames.forEach(f => {
+    const { ligature, filename } = generateLigaturePreview(style, f)
+    html += `<div class="ligature"><img src="${filename}"/><div>${ligature}</div></div>`
+  })
+
+  html += `</div></body></html>`
+
+  fs.writeFileSync(`./images/preview/${style}/index.html`, html)
+}
+
+const filenames = fs
+  .readdirSync('./ligature/OperatorMonoSSmLig-Book/glyphs')
+  .filter(f => !!f.match(/[^\d]\.liga\.xml$/))
+
+generate('normal', filenames)
+generate('italic', filenames)

genspacers.js

@@ -0,0 +1,36 @@
+const fs = require('fs');
+const lig = `<Glyph name="LIG" lsb="0" width="625">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>`;
+
+fs.readdirSync('./ligature')
+  .filter((f) => !!f.match(/^OperatorMono/))
+  .forEach((f) => {
+    console.log(f);
+    fs.readdirSync(`./ligature/${f}/glyphs`)
+      .filter((g) => !!g.match(/\.liga\.xml$/))
+      .forEach((g) => {
+        console.log(g);
+        g.split('.')
+          .slice(0, 1)
+          .forEach((l) => {
+            l.split('_').forEach((c) => {
+              const path = `./ligature/${f}/glyphs/${c}.spacer.xml`;
+              const exists = fs.existsSync(path);
+              console.log(path, exists);
+              if (exists) return;
+
+              const width = !!f.match(/SSm/) ? 625 : 600;
+              const spacer = lig
+                .replace('LIG', `${c}.spacer`)
+                .replace('625', width);
+              console.log(f, c, width);
+              fs.writeFileSync(path, spacer);
+            });
+          });
+      });
+  });

gsub.js

@@ -1,313 +0,0 @@
-const xpath = require('xpath');
-const NodeType = {};
-NodeType.TEXT_NODE = 3;
-
-let dom;
-let gsubDom;
-let scriptListDom;
-let featureListDom;
-let lookupListDom;
-let featureDom;
-let lookupIndex = 0;
-let chainIndex = 0;
-const substLookupMap = {};
-
-const initGsubTables = (_dom, options) => {
-  dom = _dom;
-
-  gsubDom = xpath.select('ttFont/GSUB', dom, true);
-
-  // look for 'calt' feature
-  featureListDom = xpath.select('FeatureList', gsubDom, true);
-  lookupListDom = xpath.select('LookupList', gsubDom, true);
-
-  if (options.italicsHack) {
-    // remove all features from FeatureList
-    Array.from(featureListDom.childNodes).forEach((c) => {
-      featureListDom.removeChild(c);
-    });
-
-    Array.from(xpath.select('ttFont/GSUB//FeatureIndex', dom)).forEach((c) => {
-      c.parentNode.removeChild(c);
-    });
-
-    // remove all lookups from LookupList
-    Array.from(lookupListDom.childNodes).forEach((c) =>
-      lookupListDom.removeChild(c)
-    );
-  }
-};
-
-const buildGsubTables = (_dom, ligature, options) => {
-  dom = _dom;
-
-  if (/_/.test(ligature.glyph) === false) {
-    // not a ligature, so see if glyph exists in font (as substitute)
-    const glyphNode = xpath.select(
-      `ttFont/GlyphOrder/GlyphID[@name="${ligature.name}"]`,
-      dom,
-      true
-    );
-    if (!glyphNode) {
-      return;
-    }
-  }
-
-  const glyphs = ligature.name.replace(/\.liga$/, '').split('_');
-  const isSingleGlyph = glyphs.length == 1;
-
-  gsubDom = xpath.select('ttFont/GSUB', dom, true);
-
-  // look for 'calt' feature
-  featureListDom = xpath.select('FeatureList', gsubDom, true);
-
-  let featureRecord;
-  const featureTag = xpath.select(
-    'FeatureRecord/FeatureTag[@value="calt"]',
-    featureListDom,
-    true
-  );
-  if (!featureTag) {
-    const featureListCount = xpath.select(
-      'count(FeatureRecord)',
-      featureListDom,
-      true
-    );
-    featureRecord = createElementWithAttributes('FeatureRecord', {
-      index: featureListCount,
-    });
-    featureRecord.appendChild(
-      createElementWithAttributes('FeatureTag', { value: 'calt' })
-    );
-    featureRecord.appendChild(dom.createElement('Feature'));
-    featureListDom.appendChild(featureRecord);
-  } else {
-    featureRecord = featureTag.parentNode;
-  }
-  featureDom = xpath.select('Feature', featureRecord, true);
-
-  const featureIndex = featureRecord.getAttribute('index');
-
-  // add feature to scriptlist for DFLT and latn if not present
-  addFeatureToScriptList('DFLT', featureIndex);
-  addFeatureToScriptList('latn', featureIndex);
-
-  lookupIndex = xpath.select('count(Lookup)', lookupListDom, true);
-
-  const lookupDom = createElementWithAttributes('Lookup', {
-    index: lookupIndex++,
-  });
-  appendChildren(
-    lookupDom,
-    createElementWithAttributes('LookupType', { value: isSingleGlyph ? 1 : 6 }),
-    createElementWithAttributes('LookupFlag', { value: 0 })
-  );
-
-  // add contextual lookup to feature
-  const featureLookupCount = xpath.select(
-    'count(LookupListIndex)',
-    featureDom,
-    true
-  );
-  featureDom.appendChild(
-    createElementWithAttributes('LookupListIndex', {
-      index: featureLookupCount,
-      value: lookupDom.getAttribute('index'),
-    })
-  );
-
-  if (isSingleGlyph) {
-    lookupDom.appendChild(
-      getSubstLookup(ligature.name, ligature.glyph, lookupDom)
-    );
-  } else {
-    lookupDom.appendChild(buildBacktrackFirst(glyphs));
-    lookupDom.appendChild(buildLookAheadLast(glyphs));
-    lookupDom.appendChild(buildLigatureSubst(glyphs, ligature.glyph));
-    // remaining context
-    for (let n = glyphs.length - 2; n >= 0; n--) {
-      lookupDom.appendChild(
-        buildChainContext(getLIGs(n), [glyphs[n]], glyphs.slice(n + 1), 'LIG')
-      );
-    }
-  }
-  lookupListDom.appendChild(lookupDom);
-};
-
-const finalizeGsubTables = () => {
-  // get current LookupList count
-  let newIndex = xpath.select('count(Lookup)', lookupListDom, true);
-
-  // append added lookups
-  Object.entries(substLookupMap).forEach(([, lookup]) => {
-    // fixup existing lookups with new index
-    const oldIndex = lookup.getAttribute('index');
-    const substLookups = xpath.select(
-      `//ChainContextSubst/SubstLookupRecord/LookupListIndex[@value="${oldIndex}"]`,
-      lookupListDom,
-      false
-    );
-    substLookups.forEach((substLookup) => {
-      substLookup.setAttribute('value', newIndex);
-    });
-    lookup.setAttribute('index', newIndex++);
-    lookupListDom.appendChild(lookup);
-  });
-};
-
-//const dump = dom => console.log(format(serialize(dom)));
-
-const addFeatureToScriptList = (tag, featureIndex) => {
-  scriptListDom = xpath.select('ScriptList', gsubDom, true);
-  const defaultLangSys = xpath.select(
-    `ScriptRecord/ScriptTag[@value="${tag}"]/../Script/DefaultLangSys`,
-    scriptListDom,
-    true
-  );
-  const featureIndexNode = xpath.select(
-    `FeatureIndex[@value=${featureIndex}]`,
-    defaultLangSys,
-    true
-  );
-  if (!featureIndexNode) {
-    const count = xpath.select('count(FeatureIndex)', defaultLangSys, true);
-    defaultLangSys.appendChild(
-      createElementWithAttributes('FeatureIndex', {
-        index: count,
-        value: featureIndex,
-      })
-    );
-  }
-};
-
-const buildBacktrackFirst = (glyphs) => {
-  // backtrack = first glyph
-  // input = first glphy
-  // lookAhead = [1..n]
-  return buildChainContext([glyphs[0]], [glyphs[0]], glyphs.slice(1));
-};
-
-const buildLookAheadLast = (glyphs) => {
-  // backtrack = none
-  // input = first glyph
-  // lookAhead = [1..n] + [n]
-  return buildChainContext(
-    [],
-    [glyphs[0]],
-    [...glyphs.slice(1), glyphs.slice(-1)]
-  );
-};
-
-const buildLigatureSubst = (glyphs, lookup) => {
-  // backtrack = LIG * n-1
-  // input = last glyph
-  // lookAhead = none
-  return buildChainContext(
-    getLIGs(glyphs.length - 1),
-    glyphs.slice(-1),
-    [],
-    lookup
-  );
-};
-
-const getLIGs = (length) => new Array(length).fill('LIG', 0, length);
-
-const buildChainContext = (backtrack, input, lookAhead, substitute) => {
-  const chainDom = createElementWithAttributes('ChainContextSubst', {
-    index: chainIndex++,
-    Format: 3,
-  });
-
-  buildCoverage(chainDom, 'BacktrackCoverage', backtrack);
-  buildCoverage(chainDom, 'InputCoverage', input);
-  buildCoverage(chainDom, 'LookAheadCoverage', lookAhead);
-
-  if (substitute) {
-    const lookup = getSubstLookup(input[0], substitute);
-    const listIndex = lookup.getAttribute('index');
-    const substLookupRecordDom = chainDom.appendChild(
-      createElementWithAttributes('SubstLookupRecord', { index: 0 })
-    );
-    appendChildren(
-      substLookupRecordDom,
-      createElementWithAttributes('SequenceIndex', { value: 0 }),
-      createElementWithAttributes('LookupListIndex', { value: listIndex })
-    );
-  }
-  return chainDom;
-};
-
-const buildCoverage = (chainDom, tagName, coverage) => {
-  if (coverage) {
-    coverage.forEach((glyph, i) => {
-      const coverageDom = createElementWithAttributes(tagName, {
-        index: i++,
-        Format: 1,
-      });
-      coverageDom.appendChild(
-        createElementWithAttributes('Glyph', { value: glyph })
-      );
-      chainDom.appendChild(coverageDom);
-    });
-  }
-};
-
-const getSubstLookup = (input, output, lookupDom) => {
-  if (!lookupDom) {
-    lookupDom = substLookupMap[output];
-  }
-
-  if (!lookupDom) {
-    lookupDom = createElementWithAttributes('Lookup', {
-      index: Object.keys(substLookupMap).length + 1,
-    });
-    lookupDom.appendChild(
-      createElementWithAttributes('LookupType', { value: 1 })
-    );
-    lookupDom.appendChild(
-      createElementWithAttributes('LookupFlag', { value: 0 })
-    );
-    substLookupMap[output] = lookupDom;
-  }
-
-  let singleSubstDom = xpath.select('SingleSubst', lookupDom, true);
-
-  if (!singleSubstDom) {
-    singleSubstDom = createElementWithAttributes('SingleSubst', {
-      index: 0,
-      Format: 2,
-    });
-    lookupDom.appendChild(singleSubstDom);
-  }
-
-  // look for input subst
-  const substitionDom = xpath.select(
-    `Substitution[@in="${input}"]`,
-    singleSubstDom,
-    true
-  );
-  if (!substitionDom) {
-    singleSubstDom.appendChild(
-      createElementWithAttributes('Substitution', { in: input, out: output })
-    );
-  }
-  return lookupDom;
-};
-
-const createElementWithAttributes = (tagName, attributes) => {
-  const element = dom.createElement(tagName);
-  Object.entries(attributes).forEach((attribute) => {
-    element.setAttribute(attribute[0], attribute[1]);
-  });
-  return element;
-};
-
-const appendChildren = (node, ...children) => {
-  children.forEach((child) => node.appendChild(child));
-};
-
-//const serialize = dom => new XMLSerializer().serializeToString(dom);
-
-exports.initGsubTables = initGsubTables;
-exports.buildGsubTables = buildGsubTables;
-exports.finalizeGsubTables = finalizeGsubTables;

images/preview/italic/index.html

@@ -0,0 +1,15 @@
+<html><head>
+  <style>
+    body { background-color: #000; color: #fff; font-family: sans-serif; margin: 16px;}
+    a { color: #fff; text-decoration: none; padding: 4px;}
+    a.active {color: #000; background-color: #fff;}
+    .container { display: grid;  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
+    .ligature { display: flex; flex-direction: column; align-items: center; margin: 8px; }
+  </style>
+  </head>
+  <body>
+    <h1>Operator Mono Ligatures</h1>
+    <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/normal/index.html" class="">Normal</a> |
+    <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/italic/index.html" class="active">Italic</a>
+    <div class="container">
+  <div class="ligature"><img src="ampersand_ampersand.png"/><div>ampersand_ampersand</div></div><div class="ligature"><img src="bar_bar.png"/><div>bar_bar</div></div><div class="ligature"><img src="bar_greater.png"/><div>bar_greater</div></div><div class="ligature"><img src="colon_equal.png"/><div>colon_equal</div></div><div class="ligature"><img src="equal_equal.png"/><div>equal_equal</div></div><div class="ligature"><img src="equal_equal_equal.png"/><div>equal_equal_equal</div></div><div class="ligature"><img src="equal_equal_greater.png"/><div>equal_equal_greater</div></div><div class="ligature"><img src="equal_greater.png"/><div>equal_greater</div></div><div class="ligature"><img src="equal_less_less.png"/><div>equal_less_less</div></div><div class="ligature"><img src="exclam_equal.png"/><div>exclam_equal</div></div><div class="ligature"><img src="exclam_equal_equal.png"/><div>exclam_equal_equal</div></div><div class="ligature"><img src="greater_equal.png"/><div>greater_equal</div></div><div class="ligature"><img src="greater_equal_greater.png"/><div>greater_equal_greater</div></div><div class="ligature"><img src="greater_greater_equal.png"/><div>greater_greater_equal</div></div><div class="ligature"><img src="hyphen_greater.png"/><div>hyphen_greater</div></div><div class="ligature"><img src="hyphen_hyphen.png"/><div>hyphen_hyphen</div></div><div class="ligature"><img src="hyphen_hyphen_greater.png"/><div>hyphen_hyphen_greater</div></div><div class="ligature"><img src="less_bar.png"/><div>less_bar</div></div><div class="ligature"><img src="less_equal.png"/><div>less_equal</div></div><div class="ligature"><img src="less_equal_equal.png"/><div>less_equal_equal</div></div><div class="ligature"><img src="less_equal_greater.png"/><div>less_equal_greater</div></div><div class="ligature"><img src="less_equal_less.png"/><div>less_equal_less</div></div><div class="ligature"><img src="less_exclam_hyphen_hyphen.png"/><div>less_exclam_hyphen_hyphen</div></div><div class="ligature"><img src="less_hyphen.png"/><div>less_hyphen</div></div><div class="ligature"><img src="less_hyphen_greater.png"/><div>less_hyphen_greater</div></div><div class="ligature"><img src="less_hyphen_hyphen.png"/><div>less_hyphen_hyphen</div></div><div class="ligature"><img src="less_slash.png"/><div>less_slash</div></div><div class="ligature"><img src="plus_equal.png"/><div>plus_equal</div></div><div class="ligature"><img src="plus_plus.png"/><div>plus_plus</div></div><div class="ligature"><img src="question_question.png"/><div>question_question</div></div><div class="ligature"><img src="slash_greater.png"/><div>slash_greater</div></div><div class="ligature"><img src="underscore_underscore.png"/><div>underscore_underscore</div></div><div class="ligature"><img src="w_w_w.png"/><div>w_w_w</div></div></div></body></html>

images/preview/normal/index.html

@@ -0,0 +1,15 @@
+<html><head>
+  <style>
+    body { background-color: #000; color: #fff; font-family: sans-serif; margin: 16px;}
+    a { color: #fff; text-decoration: none; padding: 4px;}
+    a.active {color: #000; background-color: #fff;}
+    .container { display: grid;  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
+    .ligature { display: flex; flex-direction: column; align-items: center; margin: 8px; }
+  </style>
+  </head>
+  <body>
+    <h1>Operator Mono Ligatures</h1>
+    <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/normal/index.html" class="active">Normal</a> |
+    <a href="https://htmlpreview.github.io/?https://github.com/kiliman/operator-mono-lig/blob/master/images/preview/italic/index.html" class="">Italic</a>
+    <div class="container">
+  <div class="ligature"><img src="ampersand_ampersand.png"/><div>ampersand_ampersand</div></div><div class="ligature"><img src="bar_bar.png"/><div>bar_bar</div></div><div class="ligature"><img src="bar_greater.png"/><div>bar_greater</div></div><div class="ligature"><img src="colon_equal.png"/><div>colon_equal</div></div><div class="ligature"><img src="equal_equal.png"/><div>equal_equal</div></div><div class="ligature"><img src="equal_equal_equal.png"/><div>equal_equal_equal</div></div><div class="ligature"><img src="equal_equal_greater.png"/><div>equal_equal_greater</div></div><div class="ligature"><img src="equal_greater.png"/><div>equal_greater</div></div><div class="ligature"><img src="equal_less_less.png"/><div>equal_less_less</div></div><div class="ligature"><img src="exclam_equal.png"/><div>exclam_equal</div></div><div class="ligature"><img src="exclam_equal_equal.png"/><div>exclam_equal_equal</div></div><div class="ligature"><img src="greater_equal.png"/><div>greater_equal</div></div><div class="ligature"><img src="greater_equal_greater.png"/><div>greater_equal_greater</div></div><div class="ligature"><img src="greater_greater_equal.png"/><div>greater_greater_equal</div></div><div class="ligature"><img src="hyphen_greater.png"/><div>hyphen_greater</div></div><div class="ligature"><img src="hyphen_hyphen.png"/><div>hyphen_hyphen</div></div><div class="ligature"><img src="hyphen_hyphen_greater.png"/><div>hyphen_hyphen_greater</div></div><div class="ligature"><img src="less_bar.png"/><div>less_bar</div></div><div class="ligature"><img src="less_equal.png"/><div>less_equal</div></div><div class="ligature"><img src="less_equal_equal.png"/><div>less_equal_equal</div></div><div class="ligature"><img src="less_equal_greater.png"/><div>less_equal_greater</div></div><div class="ligature"><img src="less_equal_less.png"/><div>less_equal_less</div></div><div class="ligature"><img src="less_exclam_hyphen_hyphen.png"/><div>less_exclam_hyphen_hyphen</div></div><div class="ligature"><img src="less_hyphen.png"/><div>less_hyphen</div></div><div class="ligature"><img src="less_hyphen_greater.png"/><div>less_hyphen_greater</div></div><div class="ligature"><img src="less_hyphen_hyphen.png"/><div>less_hyphen_hyphen</div></div><div class="ligature"><img src="less_slash.png"/><div>less_slash</div></div><div class="ligature"><img src="plus_equal.png"/><div>plus_equal</div></div><div class="ligature"><img src="plus_plus.png"/><div>plus_plus</div></div><div class="ligature"><img src="question_question.png"/><div>question_question</div></div><div class="ligature"><img src="slash_greater.png"/><div>slash_greater</div></div><div class="ligature"><img src="underscore_underscore.png"/><div>underscore_underscore</div></div><div class="ligature"><img src="w_w_w.png"/><div>w_w_w</div></div></div></body></html>

index.js

@@ -1,10 +1,11 @@
+// @ts-nocheck
 const fs = require('fs');
 const os = require('os');
 if (!os.EOL) {
   os.EOL = process.platform === 'win32' ? '\r\n' : '\n';
 }
 
-const gsub = require('./gsub');
+const calt = require('./calt');
 
 const xpath = require('xpath');
 const { DOMParser, XMLSerializer } = require('xmldom');
@@ -60,11 +61,13 @@ const buildFont = (profile, options) => {
   //[...ligatures, { name: 'LIG', glyph: 'LIG' }];
 
   processPatch('names', patchNames, dom, ligatures, profile);
-  processPatch('gsub', patchGsub, dom, ligatures, options);
   processPatch('charstrings', patchCharStrings, dom, ligaturesWithLIG);
   processPatch('glyphs', patchGlyphs, dom, ligaturesWithLIG);
   processPatch('hmtx', patchHmtx, dom);
 
+  const feature = calt.gencalt(ligatures);
+  fs.writeFileSync('./features/calt.fea', feature);
+
   console.log(`Writing ligature font file ${dstFileName}`);
   fs.writeFileSync(dstFileName, format(serialize(dom)));
 };

ligature/OperatorMonoLig-Book/glyphs/ampersand.spacer.xml

@@ -0,0 +1,7 @@
+<Glyph name="ampersand.spacer" lsb="0" width="600">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>

ligature/OperatorMonoLig-Book/glyphs/bar.spacer.xml

@@ -0,0 +1,7 @@
+<Glyph name="bar.spacer" lsb="0" width="600">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>

ligature/OperatorMonoLig-Book/glyphs/bar_bar.liga.xml

@@ -1,12 +1,10 @@
 <Glyph name="bar_bar.liga" lsb="-211" width="550">
     <CharString>
         -211 75 275 75 vstem
-        -136 710 rmoveto
-        -75 -6 rlineto
-        -886 75 vlineto
-        350 892 rmoveto
-        -75 -6 rlineto
-        -886 75 vlineto
+        -211 704 rmoveto
+        -886 75 892 vlineto
+        275 -6 rmoveto
+        -886 75 892 vlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/bar_greater.liga.xml

@@ -1,15 +1,15 @@
 <Glyph name="bar_greater.liga" lsb="-261" width="550">
     <CharString>
         -261 75 468 74 vstem
-        -186 710 rmoveto
-        -75 -6 rlineto
+        -261 704 rmoveto
         -886 75 vlineto
         541 440 rlineto
         69 vlineto
-        -74 -40 rmoveto
-        -467 -376 rlineto
+        -541 383 rlineto
+        -799 vmoveto
         709 vlineto
         467 -323 rlineto
+        -10 vlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/colon.spacer.xml

@@ -0,0 +1,7 @@
+<Glyph name="colon.spacer" lsb="0" width="600">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>

ligature/OperatorMonoLig-Book/glyphs/colon_equal.liga.xml

@@ -2,20 +2,18 @@
     <CharString>
         151 69 153 69 hstem
         -297 658 vstem
-        -297 354 rmoveto
-        118 hlineto
+        -179 354 rmoveto
         2 117 rlineto
         -119 hlineto
-        657 -98 rmoveto
-        1 69 rlineto
-        -424 -69 hlineto
-        -235 -245 rmoveto
-        118 hlineto
+        -1 -117 rlineto
+        659 88 rmoveto
+        -424 -69 423 hlineto
+        -540 -245 rmoveto
         2 117 rlineto
         -119 hlineto
-        657 -94 rmoveto
-        1 69 rlineto
-        -424 -69 hlineto
+        -1 -117 rlineto
+        659 92 rmoveto
+        -424 -69 423 hlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal.spacer.xml

@@ -0,0 +1,7 @@
+<Glyph name="equal.spacer" lsb="0" width="600">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>

ligature/OperatorMonoLig-Book/glyphs/equal_equal.2.liga.xml

@@ -2,18 +2,14 @@
     <CharString>
         151 69 153 69 hstem
         -472 944 vstem
-        -49 373 rmoveto
-        1 69 rlineto
-        -424 -69 hlineto
-        943 hmoveto
-        1 69 rlineto
-        -414 -69 hlineto
-        -107 -222 rmoveto
-        1 69 rlineto
-        -424 -69 hlineto
-        943 hmoveto
-        1 69 rlineto
-        -414 -69 hlineto
+        -48 442 rmoveto
+        -424 -69 423 hlineto
+        521 69 rmoveto
+        -414 -69 413 hlineto
+        -519 -153 rmoveto
+        -424 -69 423 hlineto
+        521 69 rmoveto
+        -414 -69 413 hlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal_equal.liga.xml

@@ -2,12 +2,10 @@
     <CharString>
         151 69 153 69 hstem
         -472 944 vstem
-        471 373 rmoveto
-        1 69 rlineto
-        -944 -69 hlineto
-        943 -222 rmoveto
-        1 69 rlineto
-        -944 -69 hlineto
+        472 442 rmoveto
+        -944 -69 943 hlineto
+        1 -153 rmoveto
+        -944 -69 943 hlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal_equal_equal.2.liga.xml

@@ -2,24 +2,18 @@
     <CharString>
         151 69 153 69 hstem
         -1022 1494 vstem
-        -579 373 rmoveto
-        1 69 rlineto
-        -444 -69 hlineto
-        968 hmoveto
-        1 69 rlineto
-        -444 -69 hlineto
-        968 hmoveto
-        1 69 rlineto
-        -444 -69 hlineto
-        -607 -222 rmoveto
-        1 69 rlineto
-        -444 -69 hlineto
-        968 hmoveto
-        1 69 rlineto
-        -444 -69 hlineto
-        968 hmoveto
-        1 69 rlineto
-        -444 -69 hlineto
+        -578 442 rmoveto
+        -444 -69 443 hlineto
+        526 69 rmoveto
+        -444 -69 443 hlineto
+        526 69 rmoveto
+        -444 -69 443 hlineto
+        -1049 -153 rmoveto
+        -444 -69 443 hlineto
+        526 69 rmoveto
+        -444 -69 443 hlineto
+        526 69 rmoveto
+        -444 -69 443 hlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal_equal_equal.liga.xml

@@ -1,16 +1,13 @@
 <Glyph name="equal_equal_equal.liga" lsb="-1022" width="550">
     <CharString>
         40 69 153 69 153 69 hstem
-        -1022 1494 cntrmask 11100000
-        471 484 rmoveto
-        1 69 rlineto
-        -1494 -69 hlineto
-        1493 -222 rmoveto
-        1 69 rlineto
-        -1494 -69 hlineto
-        1493 -222 rmoveto
-        1 69 rlineto
-        -1494 -69 hlineto
+        -1022 1494 vstem
+        472 553 rmoveto
+        -1494 -69 1493 hlineto
+        1 -153 rmoveto
+        -1494 -69 1493 hlineto
+        1 -153 rmoveto
+        -1494 -69 1493 hlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal_equal_greater.liga.xml

@@ -2,8 +2,8 @@
     <CharString>
         151 69 153 69 hstem
         -1022 394 1019 74 vstem
-        138 602 rmoveto
-        -47 -58 124 -102 rlineto
+        91 544 rmoveto
+        124 -102 rlineto
         -1237 -69 1321 hlineto
         92 -76 rlineto
         -10 vlineto
@@ -11,6 +11,7 @@
         -1332 -69 1249 hlineto
         -140 -116 45 -57 333 280 rlineto
         69 vlineto
+        -327 275 rlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal_greater.liga.xml

@@ -2,8 +2,8 @@
     <CharString>
         151 69 153 69 hstemhm
         -472 937 -74 74 hintmask 11100000
-        138 602 rmoveto
-        -47 -58 124 -102 rlineto
+        91 544 rmoveto
+        124 -102 rlineto
         -687 -69 771 hlineto
         hintmask 11010000
         92 -76 rlineto
@@ -13,6 +13,7 @@
         -782 -69 699 hlineto
         -140 -116 45 -57 333 280 rlineto
         69 vlineto
+        -327 275 rlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/equal_less_less.liga.xml

@@ -2,8 +2,8 @@
     <CharString>
         151 69 153 69 hstemhm
         -1022 1486 -688 75 235 75 hintmask 11011000
-        -149 297 rmoveto
-        299 248 -45 58 -191 -161 rlineto
+        150 545 rmoveto
+        -45 58 -191 -161 rlineto
         hintmask 11100000
         -936 -69 854 hlineto
         hintmask 11011000
@@ -15,13 +15,15 @@
         206 -173 46 57 rlineto
         hintmask 11011000
         -303 252 rlineto
-        310 hmoveto
         10 vlineto
+        310 hmoveto
         299 248 -45 58 -329 -277 rlineto
         -69 vlineto
         332 -279 rlineto
         hintmask 11100000
         46 57 rlineto
+        hintmask 11011000
+        -303 252 rlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/exclam.spacer.xml

@@ -0,0 +1,7 @@
+<Glyph name="exclam.spacer" lsb="0" width="600">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>

ligature/OperatorMonoLig-Book/glyphs/exclam_equal.liga.xml

@@ -2,8 +2,7 @@
     <CharString>
         -189 915 -575 69 153 69 hstemhm
         -472 944 -762 534 hintmask 00110000
-        76 373 rmoveto
-        395 hlineto
+        471 373 rmoveto
         1 69 rlineto
         -360 hlineto
         hintmask 00101000
@@ -24,6 +23,7 @@
         512 hlineto
         1 69 rlineto
         -477 hlineto
+        81 153 rlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/exclam_equal_equal.liga.xml

@@ -1,24 +1,23 @@
 <Glyph name="exclam_equal_equal.liga" lsb="-1022" width="550">
     <CharString>
         -189 915 -686 69 153 69 153 69 hstemhm
-        -1022 1494 -1012 534 cntrmask 01110000
-        hintmask 01111000
-        471 262 rmoveto
-        1 69 rlineto
+        -1022 1494 -1012 534 hintmask 00111000
+        472 331 rmoveto
         -668 hlineto
         80 153 rlineto
         587 hlineto
         1 69 rlineto
         -552 hlineto
-        hintmask 01110100
+        hintmask 00110100
         74 141 rlineto
         hintmask 10000100
         -69 32 rlineto
-        hintmask 01110100
+        hintmask 00110100
         -91 -173 rlineto
         -856 -69 820 hlineto
         -80 -153 rlineto
         -740 -69 703 hlineto
+        hintmask 01110100
         -80 -153 rlineto
         -623 -69 587 hlineto
         -105 -200 rlineto
@@ -30,6 +29,7 @@
         1 69 rlineto
         -785 hlineto
         80 153 rlineto
+        704 hlineto
         endchar
     </CharString>
     <Subrs/>

ligature/OperatorMonoLig-Book/glyphs/greater.spacer.xml

@@ -0,0 +1,7 @@
+<Glyph name="greater.spacer" lsb="0" width="600">
+<CharString>
+    endchar
+</CharString>
+<Subrs/>
+<GlobalSubrs/>
+</Glyph>

ligature/OperatorMonoLig-Book/glyphs/greater_equal.2.liga.xml

@@ -2,14 +2,14 @@
     <CharString>
         493 -141 69 390 69 hstem
         -308 615 vstem
-        -308 95 rmoveto
-        -79 vlineto
+        -308 16 rmoveto
         615 302 rlineto
         69 vlineto
         -574 280 -37 -63 512 -247 rlineto
         -10 vlineto
-        99 -488 rmoveto
-        69 -615 -69 vlineto
+        -516 -252 rlineto
+        615 -167 rmoveto
+        -615 -69 615 hlineto
         endchar
     </CharString>
     <Subrs/>