Initial import

.gitattributes

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+*	text=auto

.gitignore

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+build/
+node_modules/

.vscode/launch.json

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+{
+  // Use IntelliSense to learn about possible Node.js debug attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "node",
+      "request": "launch",
+      "name": "Launch Program",
+      "program": "${workspaceRoot}\\index.js"
+    }
+  ]
+}

README.md

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+# Operator Mono Ligatures
+
+This project will generate new OpenType fonts for *Operator Mono* that includes ligatures similar to
+those found in the popular Fira Code font.
+
+![Ligature Sample](image/sample.js.png)
+
+![Ligature Sample](image/sample.html.png)
+
+
+NOTE: Because *Operator Mono* is not a free font, you must have the original font files. This utility 
+will merge the ligature definitions into a copy of the original font. The new font family is named *Operator Mono Lig* so you can install it side-by-side with the original font.
+
+## Prerequisites
+* The original *Operator Mono* font... of course.
+* Install *fonttools* from https://github.com/fonttools/fonttools
+  * Install Python
+  * Run: `pip install fonttools`
+* Node.js
+
+## How to Install
+
+Once all the prerequisites have been installed, clone this repo.
+
+From the command line, run:
+
+```
+npm install
+```
+
+Copy your *Operator Mono* OpenType files into the `original` folder.
+
+From the command line, run:
+
+```
+build
+```
+
+This will generate the new font files int the `build` folder. You can now install these fonts on your system.
+
+
+
+
+

build.bat

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+@echo off
+
+del .\original\*.ttx
+ttx .\original\OperatorMono-Medium.otf
+ttx .\original\OperatorMono-MediumItalic.otf
+
+if not exist build\* mkdir build
+
+node index.js OperatorMono-Medium
+node index.js OperatorMono-MediumItalic
+
+del /q .\build\*.otf
+
+ttx .\build\OperatorMonoLig-Medium.ttx
+ttx .\build\OperatorMonoLig-MediumItalic.ttx

extract.bat

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+@echo off
+
+node extract.js OperatorMonoLig-Medium
+node extract.js OperatorMonoLig-MediumItalic

extract.js

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+const Promise = require('bluebird');
+const fs = Promise.promisifyAll(require('fs'));
+
+const xpath = require('xpath');
+const { DOMParser, XMLSerializer } = require('xmldom');
+const format = require('xml-formatter');
+let fontName;
+
+const regEx = /\.liga$/;
+const regExBlankLines = /^(?=\n)$|^\s*/gm;
+const regExWhitespace = /^\s+$/;
+const NodeType = {};
+NodeType.TEXT_NODE = 3;
+
+async function main() {
+  fontName = process.argv[2];
+
+  const srcFileName = `./ligature_source/${fontName}.ttx`;
+
+  console.log(`Reading file ${srcFileName}`);
+  const xml = await fs.readFileAsync(srcFileName, 'utf-8');
+  const dom = new DOMParser().parseFromString(xml);
+
+  await extractAndWrite('glyphs', extractGlyphs, dom);
+  await extractAndWrite('cmap', extractCmap, dom);
+  await extractAndWrite('classdef', extractClassDef, dom);
+  await extractAndWrite('hmtx', extractHmtx, dom);
+  await extractAndWrite('lookup', extractLookup, dom);
+  await extractAndWrite('charstrings', extractCharStrings, dom);
+
+  console.log('Done');
+}
+
+async function extractAndWrite(name, func, dom) {
+  const newDom = func(dom);
+  console.log('Finished extracting ' + name);
+
+  const fileName = `./ligature/${fontName}_${name}.xml`;
+  await fs.writeFileAsync(fileName, format(serialize(newDom)));
+  console.log('Finished writing ' + name);
+}
+
+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\n')
+        .filter(s => /\S+/.test(s))
+        .map(s => s.replace(/^\s+/g, ''))
+        .join('\n');
+
+      return node.ownerDocument.createTextNode(data);
+    }
+    return node;
+  });
+
+const extractGlyphs = dom => {
+  const newDom = new DOMParser().parseFromString('<GlyphOrder/>');
+  const glyphIds = xpath.select('/ttFont/GlyphOrder/GlyphID', dom);
+
+  glyphIds
+    .filter(node => regEx.test(node.getAttribute('name')))
+    .forEach(node => newDom.documentElement.appendChild(node));
+
+  return newDom;
+};
+
+const extractCmap = dom => {
+  const newDom = new DOMParser().parseFromString('<cmap/>');
+  const cmap = xpath.select('/ttFont/cmap/cmap_format_4', dom);
+
+  cmap.forEach(node => {
+    // for each cmap_format_4 node, need to copy map elements
+    // create and append cmap_format_4 node
+    const cmap4 = node.cloneNode(false);
+    newDom.documentElement.appendChild(cmap4);
+
+    xpath
+      .select('map', node)
+      .filter(child => regEx.test(child.getAttribute('name')))
+      .forEach(child => cmap4.appendChild(child));
+  });
+  return newDom;
+};
+
+const extractClassDef = dom => {
+  const newDom = new DOMParser().parseFromString('<GlyphClassDef/>');
+  const classDefs = xpath.select('/ttFont/GDEF/GlyphClassDef/ClassDef', dom);
+
+  classDefs
+    .filter(node => regEx.test(node.getAttribute('glyph')))
+    .forEach(node => newDom.documentElement.appendChild(node));
+
+  return newDom;
+};
+
+const extractHmtx = dom => {
+  const newDom = new DOMParser().parseFromString('<hmtx/>');
+  const mtx = xpath.select('/ttFont/hmtx/mtx', dom);
+
+  mtx
+    .filter(node => regEx.test(node.getAttribute('name')))
+    .forEach(node => newDom.documentElement.appendChild(node));
+
+  return newDom;
+};
+
+const extractLookup = dom => {
+  const newDom = new DOMParser().parseFromString('<LookupList/>');
+  const lookup = xpath.select(
+    '/ttFont/GSUB/LookupList/Lookup[@index="20"]',
+    dom,
+    true
+  );
+
+  newDom.documentElement.appendChild(lookup);
+
+  return newDom;
+};
+
+const extractCharStrings = dom => {
+  const newDom = new DOMParser().parseFromString('<CharStrings/>');
+  const charStrings = xpath.select(
+    '/ttFont/CFF/CFFFont/CharStrings/CharString',
+    dom
+  );
+
+  charStrings
+    .filter(node => regEx.test(node.getAttribute('name')))
+    .forEach(node => newDom.documentElement.appendChild(node));
+
+  return newDom;
+};
+
+main();

index.js

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+const Promise = require('bluebird');
+const fs = Promise.promisifyAll(require('fs'));
+
+const xpath = require('xpath');
+const { DOMParser, XMLSerializer } = require('xmldom');
+const format = require('xml-formatter');
+let fontName;
+let ligFontName;
+
+const regEx = /\.liga$/;
+const regExBlankLines = /^(?=\n)$|^\s*/gm;
+const regExWhitespace = /^\s+$/;
+const NodeType = {};
+NodeType.TEXT_NODE = 3;
+
+async function main() {
+  fontName = process.argv[2] || 'OperatorMono-MediumItalic';
+  ligFontName = fontName.split('-').join('Lig-');
+
+  const srcFileName = `./original/${fontName}.ttx`;
+  const dstFileName = `./build/${ligFontName}.ttx`;
+  console.log(`Reading original font file ${srcFileName}`);
+  const xml = await fs.readFileAsync(srcFileName, 'utf-8');
+  const dom = new DOMParser().parseFromString(xml);
+
+  await processPatch('names', patchNames, dom);
+  await processPatch('glyphs', patchGlyphs, dom);
+  await processPatch('cmap', patchCmap, dom);
+  await processPatch('classdef', patchClassDef, dom);
+  await processPatch('hmtx', patchHmtx, dom);
+  await processPatch('lookup', patchLookup, dom);
+  await processPatch('charstrings', patchCharStrings, dom);
+
+  //return;
+  console.log(`Writing ligature font file ${dstFileName}`);
+  await fs.writeFileAsync(dstFileName, format(serialize(dom)));
+  console.log('Done');
+}
+
+async function loadConfigAsync(name) {
+  const fileName = `./ligature/${ligFontName}_${name}.xml`;
+  const xml = await fs.readFileAsync(fileName, 'utf-8');
+  return new DOMParser().parseFromString(xml);
+}
+
+async function processPatch(name, patchFunc, dom) {
+  console.log(`Patching ${name}`);
+  await patchFunc(dom);
+}
+
+async function patchNames(dom) {
+  const configDom = await loadConfigAsync('names');
+
+  const names = xpath.select('/name/namerecord', configDom);
+  const targetName = xpath.select('/ttFont/name', dom, true);
+
+  names.forEach(node => {
+    const nameId = node.getAttribute('nameID');
+    const platformId = node.getAttribute('platformID');
+
+    // search for namerecord in target dom and replace with this one or append node
+    const target = xpath.select(
+      `/ttFont/name/namerecord[@nameID="${nameId}" and @platformID="${platformId}"]`,
+      dom,
+      true
+    );
+    if (target) {
+      target.parentNode.replaceChild(node, target);
+    } else {
+      targetName.appendChild(node);
+    }
+  });
+}
+
+async function patchGlyphs(dom) {
+  const configDom = await loadConfigAsync('glyphs');
+  // get number of glyphs in target dom
+  const targetGlyphs = xpath.select('/ttFont/GlyphOrder', dom, true);
+  const glyphsCount = xpath.select('count(GlyphID)', targetGlyphs, true);
+
+  let n = glyphsCount;
+  // get ligature glyphs
+  const glyphs = xpath.select('/GlyphOrder/GlyphID', configDom);
+  glyphs.forEach(node => {
+    node.setAttribute('id', n++);
+    targetGlyphs.appendChild(node);
+  });
+
+  // update glyph count
+  setAttribute(dom, '/ttFont/maxp/numGlyphs', 'value', n);
+}
+
+async function patchCmap(dom) {
+  const configDom = await loadConfigAsync('cmap');
+  const cmaps = xpath.select('/cmap/cmap_format_4', configDom);
+
+  cmaps.forEach(node => {
+    const platformId = node.getAttribute('platformID');
+    const platEncId = node.getAttribute('platEncID');
+
+    // search for cmap_format_4 in target dom
+    const target = xpath.select(
+      `/ttFont/cmap/cmap_format_4[@platformID="${platformId}" and @platEncID="${platEncId}"]`,
+      dom,
+      true
+    );
+    if (target) {
+      // append all map elements to target cmap_format_4
+      const maps = xpath.select('map', node);
+      maps.forEach(child => target.appendChild(child));
+    }
+  });
+}
+
+async function patchClassDef(dom) {
+  const configDom = await loadConfigAsync('classdef');
+  const glyphClassDef = xpath.select('/ttFont/GDEF/GlyphClassDef', dom, true);
+
+  const classDefs = xpath.select('/GlyphClassDef/ClassDefs', configDom);
+  classDefs.forEach(node => glyphClassDef.appendChild(node));
+}
+
+async function patchHmtx(dom) {
+  const hmtxDom = await loadConfigAsync('hmtx');
+  const targetHmtx = xpath.select('/ttFont/hmtx', dom, true);
+
+  const mtx = xpath.select('/hmtx/mtx', hmtxDom);
+  mtx.forEach(node => targetHmtx.appendChild(node));
+
+  const mtxCount = xpath.select('count(/ttFont/hmtx/mtx)', dom, true);
+  setAttribute(dom, '/ttFont/hhea/numberOfHMetrics', 'value', mtxCount);
+
+  const configDom = await loadConfigAsync('config');
+  copyConfigAttribute(dom, configDom, '/ttFont/head/xMin', 'value');
+  copyConfigAttribute(dom, configDom, '/ttFont/head/yMin', 'value');
+  copyConfigAttribute(dom, configDom, '/ttFont/head/xMax', 'value');
+  copyConfigAttribute(dom, configDom, '/ttFont/head/yMax', 'value');
+  copyConfigAttribute(dom, configDom, '/ttFont/hhea/advanceWidthMax', 'value');
+  copyConfigAttribute(dom, configDom, '/ttFont/hhea/xMaxExtent', 'value');
+  copyConfigAttribute(dom, configDom, '/ttFont/CFF/CFFFont/FontBBox', 'value');
+  copyConfigAttribute(
+    dom,
+    configDom,
+    '/ttFont/CFF/CFFFont/Private/nominalWidthX',
+    'value'
+  );
+}
+
+async function patchLookup(dom) {
+  const configDom = await loadConfigAsync('lookup');
+  const featureList = xpath.select('/ttFont/GSUB/FeatureList', dom, true);
+
+  // look for feature with FeatureTag liga
+  let featureRecord;
+  let featureTag;
+  let feature;
+  let featureTags = xpath.select(
+    '/ttFont/GSUB/FeatureList/FeatureRecord/FeatureTag[@value="liga"]',
+    dom
+  );
+
+  if (featureTags.length) {
+    featureTag = featureTags[0];
+    featureRecord = featureTag.parentNode;
+    feature = xpath.select('Feature', featureRecord, true);
+  } else {
+    // need to add feature to FeatureList
+    const featuresCount = xpath.select(
+      'count(/ttFont/GSUB/FeatureList/FeatureRecord)',
+      dom,
+      true
+    );
+
+    featureRecord = dom.createElement('FeatureRecord');
+    featureRecord.setAttribute('index', featuresCount);
+    featureTag = dom.createElement('FeatureTag');
+    featureTag.setAttribute('value', 'liga');
+    feature = dom.createElement('Feature');
+    featureRecord.appendChild(featureTag);
+    featureRecord.appendChild(feature);
+    featureList.appendChild(featureRecord);
+  }
+  let lookupListIndex = xpath.select(
+    'LookupListIndex[@value="20"]',
+    feature,
+    true
+  );
+  if (!lookupListIndex) {
+    const count = xpath.select('count(LookupListIndex)', feature, true);
+    lookupListIndex = dom.createElement('LookupListIndex');
+    lookupListIndex.setAttribute('index', count);
+    lookupListIndex.setAttribute('value', '20');
+    feature.appendChild(lookupListIndex);
+  }
+
+  // helper function for adding feature to ScriptRecord
+  const addFeature = (scriptRecord, featureRecord, lang) => {
+    if (!lang) return;
+    const index = featureRecord.getAttribute('index');
+    if (xpath.select(`FeatureIndex[@value="${index}"]`, lang, true)) return;
+
+    const count = xpath.select('count(FeatureIndex)', lang, true);
+    const featureIndex = dom.createElement('FeatureIndex');
+    featureIndex.setAttribute('index', count);
+    featureIndex.setAttribute('value', index);
+    lang.appendChild(featureIndex);
+  };
+
+  // nead to add feature  to ScriptList
+  const scriptList = xpath.select('/ttFont/GSUB/ScriptList', dom, true);
+  const scriptRecords = xpath.select('ScriptRecord', scriptList);
+  scriptRecords.forEach(node => {
+    // check for feature in DefaultLangSys
+    addFeature(
+      node,
+      featureRecord,
+      xpath.select('Script/DefaultLangSys', node, true)
+    );
+    // add features to any other languages
+    xpath
+      .select('Script/LangSysRecord/LangSys', node)
+      .forEach(lang => addFeature(node, featureRecord, lang));
+  });
+
+  // finally add LigatureSubst to Lookup index=20
+  const lookupList = xpath.select('/ttFont/GSUB/LookupList', dom, true);
+  const newLookup = xpath.select('/LookupList/Lookup', configDom, true);
+
+  let lookup = xpath.select(
+    '/ttFont/GSUB/LookupList/Lookup[@index="20"]',
+    dom,
+    true
+  );
+  if (!lookup) {
+    lookupList.appendChild(newLookup);
+  } else {
+    lookupList.replaceChild(newLookup, lookup);
+  }
+}
+
+async function patchCharStrings(dom) {
+  const configDom = await loadConfigAsync('charstrings');
+  const nameDom = await loadConfigAsync('names');
+
+  const cffFont = xpath.select('/ttFont/CFF/CFFFont', dom, true);
+
+  cffFont.setAttribute('name', ligFontName);
+  // get names from name config
+  const fullName = nameDom.documentElement.getAttribute('fullName');
+  const familyName = nameDom.documentElement.getAttribute('familyName');
+  setAttribute(cffFont, 'FullName', 'value', fullName);
+  setAttribute(cffFont, 'FamilyName', 'value', familyName);
+
+  const targetCharStrings = xpath.select('CharStrings', cffFont, true);
+
+  const charStrings = xpath.select('/CharStrings/CharString', configDom);
+  charStrings.forEach(node => targetCharStrings.appendChild(node));
+}
+
+const setAttribute = (parent, path, name, value) => {
+  var node = xpath.select(path, parent, true);
+  node.setAttribute(name, value);
+};
+
+const copyConfigAttribute = (dom, configDom, path, name) => {
+  const value = xpath.select(path, configDom, true).getAttribute(name);
+  setAttribute(dom, path, name, value);
+};
+
+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\n')
+        .filter(s => /\S+/.test(s))
+        .map(s => s.replace(/^\s+/g, ''))
+        .join('\n');
+
+      return node.ownerDocument.createTextNode(data);
+    }
+    return node;
+  });
+
+main();

ligature/OperatorMonoLig-MediumItalic_charstrings.xml

@@ -0,0 +1,130 @@
+<CharStrings>
+    <CharString name="ampersand_ampersand.liga">
+        107 385.31746 184.40079 rmoveto
+4.36612 -7.70291 4.56085 -7.80026 4.75555 -7.89761 -49.33333 -50 -44 -25 -38.66667 0 -34.66667 0 -17.33333 19.66667 0 39.33333 0 52 36 61.33333 72 70.66667 11.63492 -43.63095 20.77249 -48.19974 29.91005 -52.76852 rrcurveto
+358.73317 -8.25699 rmoveto
+2.9023 -5.00752 2.98312 -5.04793 3.06395 -5.08835 -49.33333 -50 -44 -25 -38.66667 0 -34.66667 0 -17.33333 19.66667 0 39.33333 0 52 36 61.33333 72 70.66667 12.23906 -45.8965 22.35022 -50.95206 32.46135 -56.00764 rrcurveto
+143.94937 -196.1438 rmoveto
+89 65 rlineto
+-42 46 -35.66667 44 -29.33333 42 38 46.66667 39.33333 58 40.66667 69.33333 rrcurveto
+-88 31 rlineto
+-24.66667 -48.66667 -25.66666 -44 -26.66667 -39.33333 -28.66667 52 -19.33333 51.33333 -10 50.66667 31.33333 29.33333 24.33334 30 17.33333 30.66667 17.33333 30.66667 8.66667 26.33333 0 22 0 22 -6.83333 16.66667 -13.66667 11.33333 -13.66667 11.33333 -17.83333 5.66667 -22 0 rrcurveto
+-32.66667 0 -30.16666 -18.16667 -27.66667 -36.33333 -27.66667 -36.33333 -13.83333 -45.5 0 -54.66667 0 -12 0.33333 -9.33333 0.66667 -6.66667 -85.33333 -68.66667 -57.29137 -67.4156 -29.24939 -66.16457 -42.08394 74.16457 -25.3753 61.74895 -8.66667 49.33333 31.33333 29.33333 24.33334 30 17.33333 30.66667 rrcurveto
+17.33333 30.66667 8.66667 26.33333 0 22 0 22 -6.83333 16.66667 -13.66667 11.33333 -13.66667 11.33333 -17.83333 5.66667 -22 0 -32.66667 0 -30.16666 -18.16667 -27.66667 -36.33333 -27.66667 -36.33333 -13.83333 -45.5 0 -54.66667 0 -12 0.33333 -9.33333 0.66667 -6.66667 rrcurveto
+-129.33333 -104 -64.66667 -100.66667 0 -97.33333 0 -39.33333 10.66667 -31.16667 21.33333 -23 21.33333 -23 30.33334 -11.5 39.33333 0 65.33333 0 69.33334 34.66667 73.33333 69.33333 rrcurveto
+33 -47 rlineto
+30.66667 -38.66667 37.33333 -19.33333 44 0 64.6701 0 69.66667 35 74.66322 70 28 -39.33333 30.66667 -38.33334 33.33333 -37.33333 rrcurveto
+endchar
+    </CharString>
+    <CharString name="bar_bar.liga">
+        107 442.49721 378 rmoveto
+65.50279 335 -102 -3 -174 -892 101 0 rlineto
+433 892 rmoveto
+-64.76233 -332 -109.23767 -560 101 0 175 895 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_equal.liga">
+        107 1051 456 rmoveto
+-940 0 -19 -91 941 0 rlineto
+-24 -129 rmoveto
+-941 0 -19 -91 941 0 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_equal_equal.liga">
+        657 1601 527 rmoveto
+-1450 0 -19 -91 1451 0 rlineto
+-64 -240 rmoveto
+-1451 0 -19 -91 1451 0 rlineto
+-1408 163 rmoveto
+1451 0 18 91 -1450 0 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_equal_greater.liga">
+        657 1188 -22 rmoveto
+373 251 17 91 -281 291 -74 -72 83.33333 -83 -1195.33333 0 -19 -91 1305.69879 0 75.30121 -75 -2 -11 -65.2963 -43 -1337.7037 0 -19 -91 1218.51852 0 -124.51852 -82 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_greater.liga">
+        107 652 -22 rmoveto
+373 251 17 91 -281 291 -74 -72 83.33333 -83 -659.33333 0 -19 -91 769.69879 0 75.30121 -75 -2 -11 -65.2963 -43 -801.7037 0 -19 -91 682.51852 0 -124.51852 -82 rlineto
+endchar
+    </CharString>
+    <CharString name="exclam_equal.liga">
+        107 1009 236 rmoveto
+-428 0 88 129 364 0 18 91 -320 0 159 234 -89 36 -184 -270 -506 0 -19 -91 462 0 -88 -129 -398 0 -19 -91 355 0 rlineto
+-208 -305 96 -28 227 333 471 0 rlineto
+endchar
+    </CharString>
+    <CharString name="exclam_equal_equal.liga">
+        657 1022 726 rmoveto
+-135.886 -199 -735.114 0 -19 -91 691.97517 0 -52.57901 -77 -660.39616 0 -19 -91 617.25734 0 -49.16478 -72 -592.09254 0 -19 -91 548.95372 0 -180.95372 -265 96 -28 199.56036 293 rlineto
+787.43964 0 19 91 -744.46014 0 49.03873 72 719.42142 0 18 91 -675.44191 0 52.4442 77 644.99773 0 18 91 -601.01822 0 111.01822 163 rlineto
+endchar
+    </CharString>
+    <CharString name="greater_equal.liga">
+        107 247 -32 rmoveto
+30 -84 562 271 18 103 rlineto
+-569 -161 rmoveto
+553 261 17 91 -461 291 -74 -72 430 -249 -2 -11 -508 -226 rlineto
+endchar
+    </CharString>
+    <CharString name="hyphen_greater.liga">
+        107 628 -22 rmoveto
+373 251 17 91 -281 291 -74 -72 195.78313 -195 -758.78313 0 -18 -93 786.48148 0 -285.48148 -188 rlineto
+endchar
+    </CharString>
+    <CharString name="hyphen_hyphen.liga">
+        107 497 251 rmoveto
+17 93 -301 0 -18 -93 rlineto
+409 93 rmoveto
+-18 -93 302 0 17 93 rlineto
+endchar
+    </CharString>
+    <CharString name="hyphen_hyphen_greater.liga">
+        657 1178 -22 rmoveto
+373 251 17 91 -281 291 -74 -72 196 -195 -1309 0 -18 -93 1336 0 -285 -188 rlineto
+endchar
+    </CharString>
+    <CharString name="less_equal.liga">
+        107 256 171 rmoveto
+481 -299 66 67 -527 329 rlineto
+563 467 rmoveto
+-534 -295 -16 -91 440 -249 74 72 -409 208 2 10 488 261 rlineto
+endchar
+    </CharString>
+    <CharString name="less_equal_equal.liga">
+        657 1592 456 rmoveto
+-1183.31798 0 107.31798 71 -45 84 -374 -251 -16 -91 280 -291 74 72 -94.62 95 1190.62 0 19 91 -1300.256 0 -63.744 64 2 10 83.13364 55 1302.86636 0 rlineto
+endchar
+    </CharString>
+    <CharString name="less_exclam_hyphen_x2.liga">
+        1207 2119 344 rmoveto
+-1169 0 -18 -93 1170 0 rlineto
+-1631 360 rmoveto
+-374 -251 -16 -91 280 -291 74 72 -200 201 369 0 17 93 -382 0 277 183 rlineto
+213 -282 rmoveto
+72 hlineto
+4 17.33333 20.16667 73.16667 36.33333 129 36.33333 129 19.83334 70.83333 3.33333 12.66667 rrcurveto
+-140 hlineto
+-2.66667 -14 -8.5 -71.33333 -14.33333 -128.66667 -14.33333 -128.66667 -8.83334 -72.66666 -3.33333 -16.66667 rrcurveto
+77 -114 rmoveto
+-135 0 -26 -131 135 0 rlineto
+endchar
+    </CharString>
+    <CharString name="less_hyphen.liga">
+        107 472 611 rmoveto
+-374 -251 -16 -91 280 -291 74 72 -200.196 201 765.196 0 17 93 -777.60829 0 276.60829 183 rlineto
+endchar
+    </CharString>
+    <CharString name="less_hyphen_hyphen.liga">
+        657 472 611 rmoveto
+-374 -251 -16 -91 280 -291 74 72 -200.196 201 1315.196 0 17 93 -1327.60829 0 276.60829 183 rlineto
+endchar
+    </CharString>
+    <CharString name="plus_plus.liga">
+        107 981 252 rmoveto
+19 91 -173 0 35 179 -97 0 -35 -179 -170 0 -1 0 -172 0 35 179 -97 0 -35 -179 -171 0 -19 -91 173 0 -35 -179 rlineto
+97 0 35 179 170 0 1 0 172 0 -35 -179 97 0 35 179 rlineto
+endchar
+    </CharString>
+</CharStrings>

ligature/OperatorMonoLig-MediumItalic_classdef.xml

@@ -0,0 +1,20 @@
+<GlyphClassDef>
+    <ClassDef glyph="ampersand_ampersand.liga" class="2"/>
+    <ClassDef glyph="bar_bar.liga" class="2"/>
+    <ClassDef glyph="equal_equal.liga" class="2"/>
+    <ClassDef glyph="equal_equal_equal.liga" class="2"/>
+    <ClassDef glyph="equal_equal_greater.liga" class="2"/>
+    <ClassDef glyph="equal_greater.liga" class="2"/>
+    <ClassDef glyph="exclam_equal.liga" class="2"/>
+    <ClassDef glyph="exclam_equal_equal.liga" class="2"/>
+    <ClassDef glyph="greater_equal.liga" class="2"/>
+    <ClassDef glyph="hyphen_greater.liga" class="2"/>
+    <ClassDef glyph="hyphen_hyphen.liga" class="2"/>
+    <ClassDef glyph="hyphen_hyphen_greater.liga" class="2"/>
+    <ClassDef glyph="less_equal.liga" class="2"/>
+    <ClassDef glyph="less_equal_equal.liga" class="2"/>
+    <ClassDef glyph="less_exclam_hyphen_x2.liga" class="2"/>
+    <ClassDef glyph="less_hyphen.liga" class="2"/>
+    <ClassDef glyph="less_hyphen_hyphen.liga" class="2"/>
+    <ClassDef glyph="plus_plus.liga" class="2"/>
+</GlyphClassDef>

ligature/OperatorMonoLig-MediumItalic_cmap.xml

@@ -0,0 +1,42 @@
+<cmap>
+    <cmap_format_4 platformID="0" platEncID="3" language="0">
+        <map code="0xe600" name="exclam_equal.liga"/>
+        <map code="0xe601" name="equal_equal.liga"/>
+        <map code="0xe602" name="equal_greater.liga"/>
+        <map code="0xe603" name="greater_equal.liga"/>
+        <map code="0xe604" name="less_equal.liga"/>
+        <map code="0xe605" name="equal_equal_equal.liga"/>
+        <map code="0xe606" name="exclam_equal_equal.liga"/>
+        <map code="0xe607" name="ampersand_ampersand.liga"/>
+        <map code="0xe608" name="bar_bar.liga"/>
+        <map code="0xe609" name="plus_plus.liga"/>
+        <map code="0xe60a" name="hyphen_hyphen.liga"/>
+        <map code="0xe60b" name="equal_equal_greater.liga"/>
+        <map code="0xe60c" name="hyphen_greater.liga"/>
+        <map code="0xe60d" name="hyphen_hyphen_greater.liga"/>
+        <map code="0xe60e" name="less_hyphen.liga"/>
+        <map code="0xe60f" name="less_hyphen_hyphen.liga"/>
+        <map code="0xe610" name="less_equal_equal.liga"/>
+        <map code="0xe611" name="less_exclam_hyphen_x2.liga"/>
+    </cmap_format_4>
+    <cmap_format_4 platformID="3" platEncID="1" language="0">
+        <map code="0xe600" name="exclam_equal.liga"/>
+        <map code="0xe601" name="equal_equal.liga"/>
+        <map code="0xe602" name="equal_greater.liga"/>
+        <map code="0xe603" name="greater_equal.liga"/>
+        <map code="0xe604" name="less_equal.liga"/>
+        <map code="0xe605" name="equal_equal_equal.liga"/>
+        <map code="0xe606" name="exclam_equal_equal.liga"/>
+        <map code="0xe607" name="ampersand_ampersand.liga"/>
+        <map code="0xe608" name="bar_bar.liga"/>
+        <map code="0xe609" name="plus_plus.liga"/>
+        <map code="0xe60a" name="hyphen_hyphen.liga"/>
+        <map code="0xe60b" name="equal_equal_greater.liga"/>
+        <map code="0xe60c" name="hyphen_greater.liga"/>
+        <map code="0xe60d" name="hyphen_hyphen_greater.liga"/>
+        <map code="0xe60e" name="less_hyphen.liga"/>
+        <map code="0xe60f" name="less_hyphen_hyphen.liga"/>
+        <map code="0xe610" name="less_equal_equal.liga"/>
+        <map code="0xe611" name="less_exclam_hyphen_x2.liga"/>
+    </cmap_format_4>
+</cmap>

ligature/OperatorMonoLig-MediumItalic_config.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ttFont>
+	<head>
+		<xMin value="-75"/>
+		<yMin value="-364"/>
+		<xMax value="2119"/>
+		<yMax value="1137"/>
+	</head>
+	<hhea>
+		<advanceWidthMax value="2200"/>
+		<xMaxExtent value="2119"/>
+	</hhea>
+	<CFF>
+		<CFFFont>
+			<FontBBox value="-75 -364 2119 1137"/>
+			<Private>
+				<nominalWidthX value="993"/>
+			</Private>
+		</CFFFont>
+	</CFF>
+</ttFont>

ligature/OperatorMonoLig-MediumItalic_glyphs.xml

@@ -0,0 +1,20 @@
+<GlyphOrder>
+    <GlyphID id="383" name="exclam_equal.liga"/>
+    <GlyphID id="384" name="equal_equal.liga"/>
+    <GlyphID id="385" name="equal_greater.liga"/>
+    <GlyphID id="386" name="greater_equal.liga"/>
+    <GlyphID id="387" name="less_equal.liga"/>
+    <GlyphID id="388" name="equal_equal_equal.liga"/>
+    <GlyphID id="389" name="exclam_equal_equal.liga"/>
+    <GlyphID id="390" name="ampersand_ampersand.liga"/>
+    <GlyphID id="391" name="bar_bar.liga"/>
+    <GlyphID id="392" name="plus_plus.liga"/>
+    <GlyphID id="393" name="hyphen_hyphen.liga"/>
+    <GlyphID id="394" name="equal_equal_greater.liga"/>
+    <GlyphID id="395" name="hyphen_greater.liga"/>
+    <GlyphID id="396" name="hyphen_hyphen_greater.liga"/>
+    <GlyphID id="397" name="less_hyphen.liga"/>
+    <GlyphID id="398" name="less_hyphen_hyphen.liga"/>
+    <GlyphID id="399" name="less_equal_equal.liga"/>
+    <GlyphID id="400" name="less_exclam_hyphen_x2.liga"/>
+</GlyphOrder>

ligature/OperatorMonoLig-MediumItalic_hmtx.xml

@@ -0,0 +1,20 @@
+<hmtx>
+    <mtx name="ampersand_ampersand.liga" width="1100" lsb="111"/>
+    <mtx name="bar_bar.liga" width="1100" lsb="232"/>
+    <mtx name="equal_equal.liga" width="1100" lsb="49"/>
+    <mtx name="equal_equal_equal.liga" width="1650" lsb="49"/>
+    <mtx name="equal_equal_greater.liga" width="1650" lsb="49"/>
+    <mtx name="equal_greater.liga" width="1100" lsb="49"/>
+    <mtx name="exclam_equal.liga" width="1100" lsb="49"/>
+    <mtx name="exclam_equal_equal.liga" width="1650" lsb="49"/>
+    <mtx name="greater_equal.liga" width="1100" lsb="243"/>
+    <mtx name="hyphen_greater.liga" width="1100" lsb="82"/>
+    <mtx name="hyphen_hyphen.liga" width="1100" lsb="195"/>
+    <mtx name="hyphen_hyphen_greater.liga" width="1650" lsb="82"/>
+    <mtx name="less_equal.liga" width="1100" lsb="256"/>
+    <mtx name="less_equal_equal.liga" width="1650" lsb="81"/>
+    <mtx name="less_exclam_hyphen_x2.liga" width="2200" lsb="81"/>
+    <mtx name="less_hyphen.liga" width="1100" lsb="82"/>
+    <mtx name="less_hyphen_hyphen.liga" width="1650" lsb="82"/>
+    <mtx name="plus_plus.liga" width="1100" lsb="100"/>
+</hmtx>

ligature/OperatorMonoLig-MediumItalic_lookup.xml

@@ -0,0 +1,43 @@
+<LookupList>
+    <Lookup index="20">
+        <LookupType value="4"/>
+        <LookupFlag value="0"/>
+        <!-- SubTableCount=1 -->
+        <LigatureSubst index="0" Format="1">
+            <LigatureSet glyph="ampersand">
+                <Ligature components="ampersand" glyph="ampersand_ampersand.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="bar">
+                <Ligature components="bar" glyph="bar_bar.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="equal">
+                <Ligature components="equal,greater" glyph="equal_equal_greater.liga"/>
+                <Ligature components="equal,equal" glyph="equal_equal_equal.liga"/>
+                <Ligature components="greater" glyph="equal_greater.liga"/>
+                <Ligature components="equal" glyph="equal_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="exclam">
+                <Ligature components="equal,equal" glyph="exclam_equal_equal.liga"/>
+                <Ligature components="equal" glyph="exclam_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="greater">
+                <Ligature components="equal" glyph="greater_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="hyphen">
+                <Ligature components="hyphen,greater" glyph="hyphen_hyphen_greater.liga"/>
+                <Ligature components="hyphen" glyph="hyphen_hyphen.liga"/>
+                <Ligature components="greater" glyph="hyphen_greater.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="less">
+                <Ligature components="exclam,hyphen,hyphen" glyph="less_exclam_hyphen_x2.liga"/>
+                <Ligature components="hyphen,hyphen" glyph="less_hyphen_hyphen.liga"/>
+                <Ligature components="equal,equal" glyph="less_equal_equal.liga"/>
+                <Ligature components="hyphen" glyph="less_hyphen.liga"/>
+                <Ligature components="equal" glyph="less_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="plus">
+                <Ligature components="plus" glyph="plus_plus.liga"/>
+            </LigatureSet>
+        </LigatureSubst>
+    </Lookup>
+</LookupList>

ligature/OperatorMonoLig-MediumItalic_names.xml

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<name fullName="Operator Mono Lig Medium Italic" familyName="Operator Mono Lig">
+  <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Operator Mono Lig
+  </namerecord>
+  <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Medium Italic
+  </namerecord>
+  <namerecord nameID="3" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    H&amp;Co: Operator Mono Lig Medium Italic: 1.200
+  </namerecord>
+  <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Operator Mono Lig Medium Italic
+  </namerecord>
+  <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    OperatorMonoLig-MediumItalic
+  </namerecord>
+  <namerecord nameID="16" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Operator Mono Lig
+  </namerecord>
+  <namerecord nameID="17" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Medium Italic
+  </namerecord>
+  <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+    Operator Mono Lig Medium
+  </namerecord>
+  <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+    Italic
+  </namerecord>
+  <namerecord nameID="3" platformID="3" platEncID="1" langID="0x409">
+    H&amp;Co: Operator Mono Lig Medium Italic: 1.200
+  </namerecord>
+  <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+    Operator Mono Lig Medium Italic
+  </namerecord>
+  <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+    OperatorMonoLig-MediumItalic
+  </namerecord>
+  <namerecord nameID="16" platformID="3" platEncID="1" langID="0x409">
+    Operator Mono Lig
+  </namerecord>
+  <namerecord nameID="17" platformID="3" platEncID="1" langID="0x409">
+    Medium Italic
+  </namerecord>
+</name>

ligature/OperatorMonoLig-Medium_charstrings.xml

@@ -0,0 +1,139 @@
+<CharStrings>
+    <CharString name="ampersand_ampersand.liga">
+        107 270.7619 245 rmoveto
+21.46031 -26 57.77777 -70 rlineto
+-30.66667 -48 -33.66666 -24 -36.66667 0 -22.66667 0 -17.5 7.5 -12.33333 15 -12.33333 15 -6.16667 19.16667 0 23.33333 0 43.33333 22.66667 39.33334 45.33333 35.33333 rrcurveto
+494.49207 -43 rmoveto
+20.63492 -25 47.87302 -58 rlineto
+-30.66667 -48 -33.66666 -24 -36.66667 0 -22.66667 0 -17.5 7.5 -12.33333 15 -12.33333 15 -6.16667 19.16667 0 23.33333 0 43.33333 22.66667 39.33334 45.33333 35.33333 rrcurveto
+191 256 rmoveto
+-7 102 rlineto
+-102.81816 1.3353 -73.66667 -18 -44.51517 -37.3353 -40 -33.54839 -20 -40.66667 0 -47.78494 0 -35.33333 18.66667 -43 37.33333 -50.66667 -88.66667 -55.33333 -44.33333 -65 0 -74.66667 0 -12 1 -11.66667 2 -11.33333 -18 22 -23.66667 29.33333 -29.33333 36.66667 rrcurveto
+36 66.66667 27.66667 69.66666 19.33333 72.66667 rrcurveto
+-94 11 rlineto
+-9.33333 -47.33333 -15 -51.33334 -20.66667 -55.33333 -6.66667 8 -18.16666 21.16667 -29.66667 34.33333 -29.66667 34.33333 -22.66666 28.33334 -15.66667 22.33333 -15.66667 22.33333 -7.83333 19.5 0 16.66667 0 26.66667 12.66667 19.5 25.33333 12.33333 25.33333 12.33333 46 4.5 66.66667 -3.33333 rrcurveto
+-7 102 rlineto
+-102.81816 1.3353 -73.66667 -18 -44.51517 -37.3353 -40 -33.54839 -20 -40.66667 0 -47.78494 0 -35.33333 18.66667 -43 37.33333 -50.66667 -88.66667 -55.33333 -44.33333 -65 0 -74.66667 0 -43.33333 13.16667 -35.16667 26.33333 -27 26.33333 -27 37.83334 -13.5 49.33333 0 rrcurveto
+69.33333 0 58.33334 33.33333 47.33333 66.66667 46.66667 -64.66667 94.66666 -33.33333 142.66667 -2 69.33333 0 58.33334 33.33333 47.33333 66.66667 19.33333 -24 26 -33.66667 32.66667 -43.33333 rrcurveto
+91 69 rlineto
+-12.66667 16 -35.33333 43.66667 -58 71.33333 36 66.66667 27.66667 69.66666 19.33333 72.66667 rrcurveto
+-94 11 rlineto
+-9.33333 -47.33333 -15 -51.33334 -20.66667 -55.33333 -6.66667 8 -18.16666 21.16667 -29.66667 34.33333 -29.66667 34.33333 -22.66666 28.33334 -15.66667 22.33333 -15.66667 22.33333 -7.83333 19.5 0 16.66667 0 26.66667 12.66667 19.5 25.33333 12.33333 25.33333 12.33333 46 4.5 66.66667 -3.33333 rrcurveto
+endchar
+    </CharString>
+    <CharString name="bar_bar.liga">
+        107 672 709 rmoveto
+-892 105 901 vlineto
+-454 -9 rmoveto
+-892 105 901 vlineto
+410 -1418 rmoveto
+0 vmoveto
+endchar
+    </CharString>
+    <CharString name="equal_equal.liga">
+        107 1028 458 rmoveto
+-956 -2 0 -94 956 2 rlineto
+-126 vmoveto
+-956 -2 0 -94 956 2 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_equal_equal.liga">
+        657 72 526 rmoveto
+0 -94 1506 2 0 94 rlineto
+-331 vmoveto
+-1506 -2 0 -94 1506 2 rlineto
+-1506 159 rmoveto
+1506 2 0 94 -1506 -2 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_equal_greater.liga">
+        657 1245 -20 rmoveto
+333 273 0 93 -328 271 -62 -80 99 -79 -1215 -2 0 -94 1332 2 74 -59 0 -11 -70 -56 -1336 -2 0 -94 1219 2 -106 -86 rlineto
+endchar
+    </CharString>
+    <CharString name="equal_greater.liga">
+        107 695 -20 rmoveto
+333 273 0 93 -328 271 -62 -80 99 -79 -665 -2 0 -94 782 2 74 -59 0 -11 -70 -56 -786 -2 0 -94 669 2 -106 -86 rlineto
+endchar
+    </CharString>
+    <CharString name="exclam_equal.liga">
+        107 1028 238 rmoveto
+-457 -1 65 126 392 1 0 94 -344 -1 121 238 -96 46 -145 -284 -492 -1 0 -94 445 1 -65 -126 -380 -1 0 -94 333 1 rlineto
+-153 -300 96 -43 175 343 505 1 rlineto
+endchar
+    </CharString>
+    <CharString name="exclam_equal_equal.liga">
+        657 969 741 rmoveto
+-109 -214 -788 -1 0 -94 740 1 -38 -76 -702 -1 0 -94 654 1 -34 -67 -620 -1 0 -94 572 1 -132 -259 96 -43 154 302 rlineto
+816 1 0 94 -768 -1 34 67 734 1 0 94 -686 -1 39 76 647 1 0 94 -599 -1 86 168 rlineto
+endchar
+    </CharString>
+    <CharString name="greater_equal.liga">
+        107 308 -101 rmoveto
+534 262 -2 96 -583 -292 rlineto
+60 131 rmoveto
+523 257 0 126 -518 254 -62 -80 480 -232 0 -11 -483 -236 rlineto
+endchar
+    </CharString>
+    <CharString name="hyphen_greater.liga">
+        107 695 -24 rmoveto
+333 273 0 93 -328 271 -62 -80 235 -188 -801 0 0 -95 806 0 -243 -196 rlineto
+endchar
+    </CharString>
+    <CharString name="hyphen_hyphen.liga">
+        107 910 345 rmoveto
+-320 -95 312 hlineto
+-392 95 rmoveto
+-320 -95 312 hlineto
+endchar
+    </CharString>
+    <CharString name="hyphen_hyphen_greater.liga">
+        657 1245 -24 rmoveto
+333 273 0 93 -328 271 -62 -80 235 -188 -1351 0 0 -95 1356 0 -243 -196 rlineto
+endchar
+    </CharString>
+    <CharString name="less_equal.liga">
+        107 791 -101 rmoveto
+-534 262 2 96 583 -292 rlineto
+-60 131 rmoveto
+-523 257 0 126 518 254 62 -80 -480 -232 0 -11 483 -236 rlineto
+endchar
+    </CharString>
+    <CharString name="less_equal_equal.liga">
+        657 405 -20 rmoveto
+-333 273 0 93 328 271 62 -80 -99 -79 1215 -2 0 -94 -1332 2 -74 -59 0 -11 70 -56 1336 -2 0 -94 -1219 2 106 -86 rlineto
+endchar
+    </CharString>
+    <CharString name="less_exclam_hyphen_x2.liga">
+        1207 -98 852 rmoveto
+1025 -507 rmoveto
+-9 -95 1194 0 8 95 rlineto
+-1502 hmoveto
+-383.28206 0 236.28206 190 -60 79 -331 -272 0 -93 329 -273 63 80 -242.08546 194 380.08546 0 rlineto
+120 -5 rmoveto
+74 hlineto
+0.66667 15.33333 6.66666 72.33334 12.66667 129.33333 12.66667 129.33333 6.66666 71.66667 0.66667 14 rrcurveto
+-142 hlineto
+0 -14 4.66667 -71.5 9.33333 -129 9.33333 -129 4.66667 -72.5 0 -16 rrcurveto
+105 -114 rmoveto
+-144 0 -3 -131 143 0 rlineto
+endchar
+    </CharString>
+    <CharString name="less_hyphen.liga">
+        107 405 -24 rmoveto
+-333 273 0 93 328 271 62 -80 -235 -188 801 0 0 -95 -806 0 243 -196 rlineto
+endchar
+    </CharString>
+    <CharString name="less_hyphen_hyphen.liga">
+        657 405 -24 rmoveto
+-333 273 0 93 328 271 62 -80 -235 -188 1351 0 0 -95 -1356 0 243 -196 rlineto
+endchar
+    </CharString>
+    <CharString name="plus_plus.liga">
+        107 983 251 rmoveto
+93 -168 178 -99 -178 -163 vlineto
+-6 0 -162 0 0 178 -99 0 0 -178 -169 0 0 -93 169 0 0 -178 99 0 0 178 162 0 6 0 163 0 0 -178 rlineto
+99 178 hlineto
+endchar
+    </CharString>
+</CharStrings>

ligature/OperatorMonoLig-Medium_classdef.xml

@@ -0,0 +1,20 @@
+<GlyphClassDef>
+    <ClassDef glyph="ampersand_ampersand.liga" class="2"/>
+    <ClassDef glyph="bar_bar.liga" class="2"/>
+    <ClassDef glyph="equal_equal.liga" class="1"/>
+    <ClassDef glyph="equal_equal_equal.liga" class="2"/>
+    <ClassDef glyph="equal_equal_greater.liga" class="2"/>
+    <ClassDef glyph="equal_greater.liga" class="2"/>
+    <ClassDef glyph="exclam_equal.liga" class="1"/>
+    <ClassDef glyph="exclam_equal_equal.liga" class="2"/>
+    <ClassDef glyph="greater_equal.liga" class="2"/>
+    <ClassDef glyph="hyphen_greater.liga" class="2"/>
+    <ClassDef glyph="hyphen_hyphen.liga" class="2"/>
+    <ClassDef glyph="hyphen_hyphen_greater.liga" class="2"/>
+    <ClassDef glyph="less_equal.liga" class="2"/>
+    <ClassDef glyph="less_equal_equal.liga" class="2"/>
+    <ClassDef glyph="less_exclam_hyphen_x2.liga" class="1"/>
+    <ClassDef glyph="less_hyphen.liga" class="2"/>
+    <ClassDef glyph="less_hyphen_hyphen.liga" class="2"/>
+    <ClassDef glyph="plus_plus.liga" class="2"/>
+</GlyphClassDef>

ligature/OperatorMonoLig-Medium_cmap.xml

@@ -0,0 +1,42 @@
+<cmap>
+    <cmap_format_4 platformID="0" platEncID="3" language="0">
+        <map code="0xe600" name="exclam_equal.liga"/>
+        <map code="0xe601" name="equal_equal.liga"/>
+        <map code="0xe602" name="equal_greater.liga"/>
+        <map code="0xe603" name="greater_equal.liga"/>
+        <map code="0xe604" name="less_equal.liga"/>
+        <map code="0xe605" name="equal_equal_equal.liga"/>
+        <map code="0xe606" name="exclam_equal_equal.liga"/>
+        <map code="0xe607" name="ampersand_ampersand.liga"/>
+        <map code="0xe608" name="bar_bar.liga"/>
+        <map code="0xe609" name="plus_plus.liga"/>
+        <map code="0xe60a" name="hyphen_hyphen.liga"/>
+        <map code="0xe60b" name="equal_equal_greater.liga"/>
+        <map code="0xe60c" name="hyphen_greater.liga"/>
+        <map code="0xe60d" name="hyphen_hyphen_greater.liga"/>
+        <map code="0xe60e" name="less_hyphen.liga"/>
+        <map code="0xe60f" name="less_hyphen_hyphen.liga"/>
+        <map code="0xe610" name="less_equal_equal.liga"/>
+        <map code="0xe611" name="less_exclam_hyphen_x2.liga"/>
+    </cmap_format_4>
+    <cmap_format_4 platformID="3" platEncID="1" language="0">
+        <map code="0xe600" name="exclam_equal.liga"/>
+        <map code="0xe601" name="equal_equal.liga"/>
+        <map code="0xe602" name="equal_greater.liga"/>
+        <map code="0xe603" name="greater_equal.liga"/>
+        <map code="0xe604" name="less_equal.liga"/>
+        <map code="0xe605" name="equal_equal_equal.liga"/>
+        <map code="0xe606" name="exclam_equal_equal.liga"/>
+        <map code="0xe607" name="ampersand_ampersand.liga"/>
+        <map code="0xe608" name="bar_bar.liga"/>
+        <map code="0xe609" name="plus_plus.liga"/>
+        <map code="0xe60a" name="hyphen_hyphen.liga"/>
+        <map code="0xe60b" name="equal_equal_greater.liga"/>
+        <map code="0xe60c" name="hyphen_greater.liga"/>
+        <map code="0xe60d" name="hyphen_hyphen_greater.liga"/>
+        <map code="0xe60e" name="less_hyphen.liga"/>
+        <map code="0xe60f" name="less_hyphen_hyphen.liga"/>
+        <map code="0xe610" name="less_equal_equal.liga"/>
+        <map code="0xe611" name="less_exclam_hyphen_x2.liga"/>
+    </cmap_format_4>
+</cmap>

ligature/OperatorMonoLig-Medium_config.xml

@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ttFont>
+	<head>
+		<xMin value="-10"/>
+		<yMin value="-294"/>
+		<xMax value="2120"/>
+		<yMax value="1150"/>
+	</head>
+	<hhea>
+		<advanceWidthMax value="2200"/>
+		<xMaxExtent value="2120"/>
+	</hhea>
+	<CFF>
+		<CFFFont>
+			<FontBBox value="-10 -294 2120 1150"/>
+			<Private>
+				<nominalWidthX value="993"/>
+			</Private>
+		</CFFFont>
+	</CFF>
+</ttFont>

ligature/OperatorMonoLig-Medium_glyphs.xml

@@ -0,0 +1,20 @@
+<GlyphOrder>
+    <GlyphID id="383" name="exclam_equal.liga"/>
+    <GlyphID id="384" name="equal_equal.liga"/>
+    <GlyphID id="385" name="equal_greater.liga"/>
+    <GlyphID id="386" name="greater_equal.liga"/>
+    <GlyphID id="387" name="less_equal.liga"/>
+    <GlyphID id="388" name="equal_equal_equal.liga"/>
+    <GlyphID id="389" name="exclam_equal_equal.liga"/>
+    <GlyphID id="390" name="ampersand_ampersand.liga"/>
+    <GlyphID id="391" name="bar_bar.liga"/>
+    <GlyphID id="392" name="plus_plus.liga"/>
+    <GlyphID id="393" name="hyphen_hyphen.liga"/>
+    <GlyphID id="394" name="equal_equal_greater.liga"/>
+    <GlyphID id="395" name="hyphen_greater.liga"/>
+    <GlyphID id="396" name="hyphen_hyphen_greater.liga"/>
+    <GlyphID id="397" name="less_hyphen.liga"/>
+    <GlyphID id="398" name="less_hyphen_hyphen.liga"/>
+    <GlyphID id="399" name="less_equal_equal.liga"/>
+    <GlyphID id="400" name="less_exclam_hyphen_x2.liga"/>
+</GlyphOrder>

ligature/OperatorMonoLig-Medium_hmtx.xml

@@ -0,0 +1,20 @@
+<hmtx>
+    <mtx name="ampersand_ampersand.liga" width="1100" lsb="72"/>
+    <mtx name="bar_bar.liga" width="1100" lsb="323"/>
+    <mtx name="equal_equal.liga" width="1100" lsb="72"/>
+    <mtx name="equal_equal_equal.liga" width="1650" lsb="72"/>
+    <mtx name="equal_equal_greater.liga" width="1650" lsb="72"/>
+    <mtx name="equal_greater.liga" width="1100" lsb="72"/>
+    <mtx name="exclam_equal.liga" width="1100" lsb="72"/>
+    <mtx name="exclam_equal_equal.liga" width="1650" lsb="72"/>
+    <mtx name="greater_equal.liga" width="1100" lsb="257"/>
+    <mtx name="hyphen_greater.liga" width="1100" lsb="72"/>
+    <mtx name="hyphen_hyphen.liga" width="1100" lsb="190"/>
+    <mtx name="hyphen_hyphen_greater.liga" width="1650" lsb="72"/>
+    <mtx name="less_equal.liga" width="1100" lsb="257"/>
+    <mtx name="less_equal_equal.liga" width="1650" lsb="72"/>
+    <mtx name="less_exclam_hyphen_x2.liga" width="2200" lsb="80"/>
+    <mtx name="less_hyphen.liga" width="1100" lsb="72"/>
+    <mtx name="less_hyphen_hyphen.liga" width="1650" lsb="72"/>
+    <mtx name="plus_plus.liga" width="1100" lsb="117"/>
+</hmtx>

ligature/OperatorMonoLig-Medium_lookup.xml

@@ -0,0 +1,42 @@
+<LookupList>
+    <Lookup index="20">
+        <LookupType value="4"/>
+        <LookupFlag value="0"/>
+        <!-- SubTableCount=1 -->
+        <LigatureSubst index="0" Format="1">
+            <LigatureSet glyph="ampersand">
+                <Ligature components="ampersand" glyph="ampersand_ampersand.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="bar">
+                <Ligature components="bar" glyph="bar_bar.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="equal">
+                <Ligature components="equal,greater" glyph="equal_equal_greater.liga"/>
+                <Ligature components="equal,equal" glyph="equal_equal_equal.liga"/>
+                <Ligature components="greater" glyph="equal_greater.liga"/>
+                <Ligature components="equal" glyph="equal_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="exclam">
+                <Ligature components="equal,equal" glyph="exclam_equal_equal.liga"/>
+                <Ligature components="equal" glyph="exclam_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="greater">
+                <Ligature components="equal" glyph="greater_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="hyphen">
+                <Ligature components="hyphen,greater" glyph="hyphen_hyphen_greater.liga"/>
+                <Ligature components="greater" glyph="hyphen_greater.liga"/>
+                <Ligature components="hyphen" glyph="hyphen_hyphen.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="less">
+                <Ligature components="equal,equal" glyph="less_equal_equal.liga"/>
+                <Ligature components="hyphen,hyphen" glyph="less_hyphen_hyphen.liga"/>
+                <Ligature components="hyphen" glyph="less_hyphen.liga"/>
+                <Ligature components="equal" glyph="less_equal.liga"/>
+            </LigatureSet>
+            <LigatureSet glyph="plus">
+                <Ligature components="plus" glyph="plus_plus.liga"/>
+            </LigatureSet>
+        </LigatureSubst>
+    </Lookup>
+</LookupList>

ligature/OperatorMonoLig-Medium_names.xml

@@ -0,0 +1,45 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<name fullName="Operator Mono Lig Medium" familyName="Operator Mono Lig">
+  <namerecord nameID="1" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Operator Mono Lig
+  </namerecord>
+  <namerecord nameID="2" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Medium
+  </namerecord>
+  <namerecord nameID="3" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    H&amp;Co: Operator Mono Lig Medium: 1.200
+  </namerecord>
+  <namerecord nameID="4" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Operator Mono Lig Medium
+  </namerecord>
+  <namerecord nameID="6" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    OperatorMonoLig-Medium
+  </namerecord>
+  <namerecord nameID="16" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Operator Mono Lig
+  </namerecord>
+  <namerecord nameID="17" platformID="1" platEncID="0" langID="0x0" unicode="True">
+    Medium
+  </namerecord>
+  <namerecord nameID="1" platformID="3" platEncID="1" langID="0x409">
+    Operator Mono Lig Medium
+  </namerecord>
+  <namerecord nameID="2" platformID="3" platEncID="1" langID="0x409">
+		Regular
+	</namerecord>
+  <namerecord nameID="3" platformID="3" platEncID="1" langID="0x409">
+    H&amp;Co: Operator Mono Lig Medium: 1.200
+  </namerecord>
+  <namerecord nameID="4" platformID="3" platEncID="1" langID="0x409">
+    Operator Mono Lig Medium
+  </namerecord>
+  <namerecord nameID="6" platformID="3" platEncID="1" langID="0x409">
+    OperatorMonoLig-Medium
+  </namerecord>
+  <namerecord nameID="16" platformID="3" platEncID="1" langID="0x409">
+    Operator Mono Lig
+  </namerecord>
+  <namerecord nameID="17" platformID="3" platEncID="1" langID="0x409">
+    Medium
+  </namerecord>
+</name>

original/.gitignore

@@ -0,0 +1,2 @@
+*
+!.gitignore

package-lock.json

@@ -0,0 +1,52 @@
+{
+  "name": "operator-mono-lig",
+  "version": "1.0.0",
+  "lockfileVersion": 1,
+  "requires": true,
+  "dependencies": {
+    "bluebird": {
+      "version": "3.5.0",
+      "resolved": "https://registry.npmjs.org/bluebird/-/bluebird-3.5.0.tgz",
+      "integrity": "sha1-eRQg1/VR7qKJdFOop3ZT+WYG1nw="
+    },
+    "debug": {
+      "version": "2.6.8",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
+      "integrity": "sha1-5zFTHKLt4n0YgiJCfaF4IdaP9Pw=",
+      "requires": {
+        "ms": "2.0.0"
+      }
+    },
+    "ms": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
+      "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
+    },
+    "xml-formatter": {
+      "version": "1.0.1",
+      "resolved": "https://registry.npmjs.org/xml-formatter/-/xml-formatter-1.0.1.tgz",
+      "integrity": "sha1-OAgz3dC86iwJht7+u6cfhDhPNT0=",
+      "requires": {
+        "xml-parser-xo": "2.1.3"
+      }
+    },
+    "xml-parser-xo": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/xml-parser-xo/-/xml-parser-xo-2.1.3.tgz",
+      "integrity": "sha1-TqjrhW36TddcSrVLJRVY3grcHGE=",
+      "requires": {
+        "debug": "2.6.8"
+      }
+    },
+    "xmldom": {
+      "version": "0.1.27",
+      "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.27.tgz",
+      "integrity": "sha1-1QH5ezvbQDr4757MIFcxh6rawOk="
+    },
+    "xpath": {
+      "version": "0.0.24",
+      "resolved": "https://registry.npmjs.org/xpath/-/xpath-0.0.24.tgz",
+      "integrity": "sha1-Gt4WLhzFI8jTn8fQavwW6iFvKfs="
+    }
+  }
+}

package.json

@@ -0,0 +1,17 @@
+{
+  "name": "operator-mono-lig",
+  "version": "1.0.0",
+  "description": "Patch Operator Mono font to include ligatures",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "kiliman@gmail.com",
+  "license": "ISC",
+  "dependencies": {
+    "bluebird": "^3.5.0",
+    "xml-formatter": "^1.0.1",
+    "xmldom": "^0.1.27",
+    "xpath": "0.0.24"
+  }
+}