🚀 Deploy v2.4.2

Bumped version due to package.lock.json issue

.all-contributorsrc

@@ -66,6 +66,33 @@
       "contributions": [
         "code"
       ]
+    },
+    {
+      "login": "Kilua99",
+      "name": "kilua99",
+      "avatar_url": "https://avatars.githubusercontent.com/u/44760686?v=4",
+      "profile": "https://github.com/Kilua99",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "GlorifiedBicycle",
+      "name": "Reland Boyle",
+      "avatar_url": "https://avatars.githubusercontent.com/u/71753585?v=4",
+      "profile": "https://github.com/GlorifiedBicycle",
+      "contributions": [
+        "doc"
+      ]
+    },
+    {
+      "login": "killua99",
+      "name": "Luigi",
+      "avatar_url": "https://avatars.githubusercontent.com/u/457822?v=4",
+      "profile": "http://killua.me/",
+      "contributions": [
+        "doc"
+      ]
     }
   ],
   "contributorsPerLine": 7

.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.
 
@@ -57,6 +59,8 @@ Which font weight of Operator Mono do you use? Also note difference between Scre
 - Node.js
 - Install _fonttools_ from https://github.com/fonttools/fonttools
   - Windows/Linux: `pip install fonttools`
+    - **NOTE**: For Windows you should use a console with administrative permissions if your Python sit under `C:\PythonX`
+    - **NOTE**: For Linux in WSL/WSL2, ensure that _fonttools_ is added to PATH after install. Alternatively, consider installing via `sudo apt install fonttools`.
   - Mac: `pip3 install fonttools`
 
 ## Installation
@@ -152,17 +156,22 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
 <!-- markdownlint-disable -->
 <table>
   <tr>
-    <td align="center"><a href="https://github.com/kiliman"><img src="https://avatars3.githubusercontent.com/u/47168?v=4" width="100px;" alt="Kiliman"/><br /><sub><b>Kiliman</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=kiliman" title="Code">💻</a> <a href="https://github.com/kiliman/operator-mono-lig/commits?author=kiliman" title="Documentation">📖</a> <a href="#design-kiliman" title="Design">🎨</a></td>
-    <td align="center"><a href="https://github.com/mskelton"><img src="https://avatars3.githubusercontent.com/u/25914066?v=4" width="100px;" alt="Mark Skelton"/><br /><sub><b>Mark Skelton</b></sub></a><br /><a href="#design-mskelton" title="Design">🎨</a></td>
-    <td align="center"><a href="https://github.com/drod3763"><img src="https://avatars2.githubusercontent.com/u/7785716?v=4" width="100px;" alt="Derick Rodriguez"/><br /><sub><b>Derick Rodriguez</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=drod3763" title="Documentation">📖</a></td>
-    <td align="center"><a href="https://github.com/amitkparekh"><img src="https://avatars3.githubusercontent.com/u/7276308?v=4" width="100px;" alt="Amit Parekh"/><br /><sub><b>Amit Parekh</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=amitkparekh" title="Documentation">📖</a> <a href="#design-amitkparekh" title="Design">🎨</a></td>
-    <td align="center"><a href="https://github.com/CandySunPlus"><img src="https://avatars0.githubusercontent.com/u/502700?v=4" width="100px;" alt="NikSun"/><br /><sub><b>NikSun</b></sub></a><br /><a href="#design-CandySunPlus" title="Design">🎨</a></td>
-    <td align="center"><a href="https://github.com/Jakob6174"><img src="https://avatars3.githubusercontent.com/u/40262817?v=4" width="100px;" alt="Jakob Pearson"/><br /><sub><b>Jakob Pearson</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=Jakob6174" title="Code">💻</a></td>
+    <td align="center"><a href="https://github.com/kiliman"><img src="https://avatars3.githubusercontent.com/u/47168?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Kiliman</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=kiliman" title="Code">💻</a> <a href="https://github.com/kiliman/operator-mono-lig/commits?author=kiliman" title="Documentation">📖</a> <a href="#design-kiliman" title="Design">🎨</a></td>
+    <td align="center"><a href="https://github.com/mskelton"><img src="https://avatars3.githubusercontent.com/u/25914066?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Mark Skelton</b></sub></a><br /><a href="#design-mskelton" title="Design">🎨</a></td>
+    <td align="center"><a href="https://github.com/drod3763"><img src="https://avatars2.githubusercontent.com/u/7785716?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Derick Rodriguez</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=drod3763" title="Documentation">📖</a></td>
+    <td align="center"><a href="https://github.com/amitkparekh"><img src="https://avatars3.githubusercontent.com/u/7276308?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Amit Parekh</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=amitkparekh" title="Documentation">📖</a> <a href="#design-amitkparekh" title="Design">🎨</a></td>
+    <td align="center"><a href="https://github.com/CandySunPlus"><img src="https://avatars0.githubusercontent.com/u/502700?v=4?s=100" width="100px;" alt=""/><br /><sub><b>NikSun</b></sub></a><br /><a href="#design-CandySunPlus" title="Design">🎨</a></td>
+    <td align="center"><a href="https://github.com/Jakob6174"><img src="https://avatars3.githubusercontent.com/u/40262817?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Jakob Pearson</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=Jakob6174" title="Code">💻</a></td>
+    <td align="center"><a href="http://killua.me/"><img src="https://avatars.githubusercontent.com/u/457822?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Luigi</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=killua99" title="Documentation">📖</a></td>
+  </tr>
+  <tr>
+    <td align="center"><a href="https://github.com/GlorifiedBicycle"><img src="https://avatars.githubusercontent.com/u/71753585?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Reland Boyle</b></sub></a><br /><a href="https://github.com/kiliman/operator-mono-lig/commits?author=GlorifiedBicycle" title="Documentation">📖</a></td>
   </tr>
 </table>
 
-<!-- markdownlint-enable -->
+<!-- markdownlint-restore -->
 <!-- prettier-ignore-end -->
+
 <!-- ALL-CONTRIBUTORS-LIST:END -->
 
 This project follows the [all-contributors](https://github.com/all-contributors/all-contributors) specification. Contributions of any kind welcome!

build.bat

@@ -3,19 +3,25 @@ setlocal
 
 if not exist .\build\* mkdir build
 
+set flags=
+if "%1"=="--italics-hack-off" (
+	set flags=%1
+	shift
+)
 rem only build passed in font
-if not "%1%"=="" (
-	call :build_font %1
+if not "%1"=="" (
+	call :build_font %1 %flags%
 	exit /b
 )
 
 rem build all fonts
-for /d %%d in (.\ligature\*) do call :build_font %%~nd
+for /d %%d in (.\ligature\*) do call :build_font %%~nd %flags%
 exit /b
 
 
 :build_font
 set lig=%1
+set flags=%2
 set otf=%lig:Lig-=-%
 
 if not exist .\original\%otf%.otf exit /b
@@ -23,6 +29,8 @@ if not exist .\ligature\%lig%\glyphs\* exit /b
 
 @echo Building %lig%
 ttx -f .\original\%otf%.otf
-node index.js %otf%
-for %%f in (.\build\%lig%*.ttx) do ttx -f %%f
+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

@@ -4,6 +4,7 @@ mkdir -p build
 
 build_font() {
     lig="$1"
+    flags="$2"
     otf=${lig/Lig-/-}
 
     if [ ! -e "./original/$otf.otf" ]
@@ -15,22 +16,28 @@ build_font() {
         return
     fi
 
-    echo Building $1
+    echo Building "$1"
     ttx -f "./original/$otf.otf"
-    node index.js $otf
+    node index.js "$otf" "$flags"
 
-    for f in ./build/$1*.ttx ; do
-        ttx -f $f
-    done
+    ttx -f "./build/$1.ttx"
+
+    fonttools feaLib -v -o "./build/$1.otf" ./features/default.fea "./build/$1.otf"
 }
 
+flags=
+if [ "$1" = "--italics-hack-off" ]
+then
+    flags=$1
+    shift
+fi
 if [ -n "$1" ]
 then
     # build specified font
-    build_font $1
+    build_font "$1" "$flags"
 else
     # build all available fonts
     for d in ./ligature/*/ ; do
-        build_font $(basename $d)
+        build_font "$(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

@@ -1,288 +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 buildGsubTables = (_dom, ligature) => {
-  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);
-
-  lookupListDom = xpath.select('LookupList', gsubDom, true);
-  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="${oldIndex}"]`,
-      lookupListDom,
-      false
-    );
-    substLookups.forEach(substLookup => {
-      substLookup.setAttribute('value', newIndex);
-    });
-    lookup.setAttribute('index', newIndex++);
-    lookupListDom.appendChild(lookup);
-    lookupListDom.appendChild(lookup);
-  });
-};
-
-//const dump = dom => console.log(format(serialize(dom)));
-
-const addFeatureToScriptList = (tag, featureIndex) => {
-  scriptListDom = xpath.select('ScriptList', gsubDom, true);
-  const defaultLangSys = xpath.select(
-    `ScriptRecord/ScriptTag[@value="${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.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');
@@ -17,8 +18,12 @@ const NodeType = {};
 NodeType.TEXT_NODE = 3;
 
 let dom;
+let italicsHack = false;
 function main() {
   fontName = process.argv[2];
+  italicsHack =
+    fontName.includes('Italic') && process.argv[3] !== '--italics-hack-off';
+
   ligFontName = fontName.split('-').join('Lig-');
 
   const srcFileName = `./original/${fontName}.ttx`;
@@ -29,12 +34,12 @@ function main() {
   const profiles = getProfiles();
 
   // process settings (there may be more than one font to build)
-  profiles.forEach(profile => buildFont(profile));
+  profiles.forEach((profile) => buildFont(profile, { italicsHack }));
 
   console.log('Done');
 }
 
-const buildFont = profile => {
+const buildFont = (profile, options) => {
   // add suffix to dstFileName if present
   const dstFileName = `./build/${ligFontName}${profile.suffixWithLeadingHyphen}.ttx`;
   console.log(
@@ -44,23 +49,25 @@ const buildFont = profile => {
   const ligatures = sortLigatures(
     fs
       .readdirSync(`./ligature/${ligFontName}/glyphs`)
-      .filter(file => /\.xml$/.test(file))
-      .map(file => file.replace('.xml', ''))
+      .filter((file) => /\.xml$/.test(file))
+      .map((file) => file.replace('.xml', ''))
   )
-    .filter(name => !/\d+\.liga$/.test(name)) // skip alternates (ends with .#)
-    .filter(name => filterLigatures(name, profile.ligatures))
-    .map(name => mapLigatures(name, profile.ligatures))
-    .filter(entry => filterGlyphsExists(entry));
+    .filter((name) => !/\d+\.liga$/.test(name)) // skip alternates (ends with .#)
+    .filter((name) => filterLigatures(name, profile.ligatures))
+    .map((name) => mapLigatures(name, profile.ligatures))
+    .filter((entry) => filterGlyphsExists(entry));
 
   const ligaturesWithLIG = ligatures;
   //[...ligatures, { name: 'LIG', glyph: 'LIG' }];
 
   processPatch('names', patchNames, dom, ligatures, profile);
-  processPatch('gsub', patchGsub, dom, ligatures);
   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)));
 };
@@ -75,8 +82,8 @@ const getProfiles = () => {
         suffix: '',
         suffixWithLeadingSpace: '',
         suffixWithLeadingHyphen: '',
-        ligatures: []
-      }
+        ligatures: [],
+      },
     ];
   }
 
@@ -86,8 +93,8 @@ const getProfiles = () => {
   const content = fs.readFileSync(profilePath, 'utf-8');
   content
     .split(/\r|\r\n|\n/g)
-    .filter(line => /^[#]/.test(line) === false && line.length > 0)
-    .forEach(line => {
+    .filter((line) => /^[#]/.test(line) === false && line.length > 0)
+    .forEach((line) => {
       const ch = line.trim()[0];
       if (ch === '[') {
         let name = line.substr(1, line.indexOf(']') - 1);
@@ -96,7 +103,7 @@ const getProfiles = () => {
           suffix: name === 'default' ? '' : name,
           suffixWithLeadingSpace: name === 'default' ? '' : ' ' + name,
           suffixWithLeadingHyphen: name === 'default' ? '' : '-' + name,
-          ligatures: []
+          ligatures: [],
         };
         profiles.push(profile);
       } else {
@@ -113,12 +120,12 @@ const getProfiles = () => {
 const filterLigatures = (name, mappings) => {
   // loop through mappings and return if name applies or not
   // skip if setting is !name
-  return mappings.filter(entry => entry === '!' + name).length === 0;
+  return mappings.filter((entry) => entry === '!' + name).length === 0;
 };
 
 const mapLigatures = (name, mappings) => {
   let mapping = { name, glyph: name };
-  mappings.forEach(entry => {
+  mappings.forEach((entry) => {
     const [val1, val2] = entry.split('=');
     // handle lig=altliga
     if (val1 === name) {
@@ -135,10 +142,10 @@ const filterGlyphsExists = ({ glyph }) => {
   return exists;
 };
 
-const sortLigatures = ligatures => {
+const sortLigatures = (ligatures) => {
   // sort by most glyphs then alphabetically
   const sorted = ligatures
-    .map(ligature => {
+    .map((ligature) => {
       return { count: ligature.split('_').length + 1, ligature: ligature };
     })
     .sort(
@@ -146,7 +153,7 @@ const sortLigatures = ligatures => {
         -compareProperty(a.count, b.count) || // sort by count descending
         compareProperty(a.ligature, b.ligature) // then by ligature alphabetically
     )
-    .map(entry => entry.ligature);
+    .map((entry) => entry.ligature);
   return sorted;
 };
 
@@ -158,20 +165,20 @@ const compareProperty = (a, b) => {
   }
 };
 
-const loadXml = name => {
+const loadXml = (name) => {
   const fileName = `./ligature/${ligFontName}/${name}.xml`;
   const xml = fs.readFileSync(fileName, 'utf-8');
   return new DOMParser().parseFromString(xml);
 };
 
-const processPatch = (name, patchFunc, dom, ligatures, profile) => {
+const processPatch = (name, patchFunc, dom, ligatures, profile, options) => {
   console.log(`Patching ${name}`);
-  patchFunc(dom, ligatures, profile);
+  patchFunc(dom, ligatures, profile, options);
 };
 
 const PlatformId = {
   mac: 1,
-  win: 3
+  win: 3,
 };
 
 const NameId = {
@@ -182,7 +189,7 @@ const NameId = {
   version: 5,
   postscriptName: 6,
   windowsFamilyName: 16,
-  fontStyleName: 17
+  fontStyleName: 17,
 };
 
 const patchNames = (dom, ligatures, profile) => {
@@ -253,7 +260,7 @@ const patchGlyphs = (dom, ligatures) => {
   // only import glyphs specified
   let n = glyphsCount;
   // get ligature glyphs
-  ligatures.forEach(ligature => {
+  ligatures.forEach((ligature) => {
     targetGlyphs.appendChild(
       createElementWithAttributes('GlyphID', { id: n++, name: ligature.glyph })
     );
@@ -262,18 +269,19 @@ const patchGlyphs = (dom, ligatures) => {
   setAttribute(dom, '/ttFont/maxp/numGlyphs', 'value', n);
 };
 
-const patchGsub = (dom, ligatures) => {
+const patchGsub = (dom, ligatures, options) => {
   // don't patch if no ligatures other than LIG
   if (ligatures.length <= 1) return;
+  gsub.initGsubTables(dom, options);
 
-  ligatures.forEach(ligature => {
+  ligatures.forEach((ligature) => {
     // build gsub tables
-    gsub.buildGsubTables(dom, ligature);
+    gsub.buildGsubTables(dom, ligature, options);
   });
   gsub.finalizeGsubTables();
 };
 
-const patchHmtx = dom => {
+const patchHmtx = (dom) => {
   const mtxCount = xpath.select('count(/ttFont/hmtx/mtx)', dom, true);
   setAttribute(dom, '/ttFont/hhea/numberOfHMetrics', 'value', mtxCount);
 
@@ -306,7 +314,7 @@ const patchCharStrings = (dom, ligatures) => {
   );
   const targetGsubrs = xpath.select('/ttFont/CFF/GlobalSubrs', dom, true);
   const fingerprints = {};
-  ligatures.forEach(ligature => {
+  ligatures.forEach((ligature) => {
     console.log(
       `* ${ligature.name}${
         ligature.name === ligature.glyph ? '' : ' => ' + ligature.glyph
@@ -318,11 +326,11 @@ const patchCharStrings = (dom, ligatures) => {
 
     const subrs = {
       sourcePath: '/Glyph/Subrs',
-      target: targetSubrs
+      target: targetSubrs,
     };
     const gsubrs = {
       sourcePath: '/Glyph/GlobalSubrs',
-      target: targetGsubrs
+      target: targetGsubrs,
     };
 
     patchCharStringSubrs(glyphDom, node, fingerprints, subrs, gsubrs);
@@ -332,16 +340,16 @@ const patchCharStrings = (dom, ligatures) => {
       createElementWithAttributes('mtx', {
         name: ligature.glyph,
         width: glyphDom.getAttribute('width'),
-        lsb: glyphDom.getAttribute('lsb')
+        lsb: glyphDom.getAttribute('lsb'),
       })
     );
     const code = glyphDom.getAttribute('code');
     if (code) {
-      Array.from(targetCmaps).forEach(node => {
+      Array.from(targetCmaps).forEach((node) => {
         node.appendChild(
           createElementWithAttributes('map', {
             code,
-            name: ligature.glyph
+            name: ligature.glyph,
           })
         );
       });
@@ -354,7 +362,7 @@ const patchCharStringSubrs = (glyphDom, node, fingerprints, subrs, gsubrs) => {
 
   const lines = node.childNodes[0].textContent.split(/\r|\r\n|\n/g);
   const newLines = [];
-  lines.forEach(line => {
+  lines.forEach((line) => {
     if (line.trim().length === 0) return;
     const matches = line.match(/(.*?)\{([0-9a-z]+)\} (callsubr|callgsubr)$/);
     if (matches != null) {
@@ -403,21 +411,21 @@ const copyConfigAttribute = (dom, configDom, path, name) => {
 
 const createElementWithAttributes = (tagName, attributes) => {
   const element = dom.createElement(tagName);
-  Object.entries(attributes).forEach(attribute => {
+  Object.entries(attributes).forEach((attribute) => {
     element.setAttribute(attribute[0], attribute[1]);
   });
   return element;
 };
 
 //const dump = dom => console.log(serialize(dom));
-const serialize = dom =>
-  new XMLSerializer().serializeToString(dom, false, node => {
+const serialize = (dom) =>
+  new XMLSerializer().serializeToString(dom, false, (node) => {
     if (node.nodeType === NodeType.TEXT_NODE) {
       if (regExWhitespace.test(node.data)) return null;
       const data = node.data
         .split(/\r|\r\n|\n/g)
-        .filter(s => /\S+/.test(s))
-        .map(s => s.replace(/^\s+/g, ''))
+        .filter((s) => /\S+/.test(s))
+        .map((s) => s.replace(/^\s+/g, ''))
         .join(os.EOL);
 
       return node.ownerDocument.createTextNode(data);

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>