From b730f01d536b4979fa9a90df18b2855f0897321b Mon Sep 17 00:00:00 2001 From: Aditya Giridharan Date: Thu, 19 Nov 2020 22:35:59 +0530 Subject: [PATCH 1/3] add export to qasm (UI + some code) --- html/export.partial.html | 15 ++++++++--- package.json | 1 + src/ui/exports.js | 58 ++++++++++++++++++++++++++++++++++++++++ 3 files changed, 71 insertions(+), 3 deletions(-) diff --git a/html/export.partial.html b/html/export.partial.html index af7d65a9..1054cbde 100644 --- a/html/export.partial.html +++ b/html/export.partial.html @@ -20,14 +20,23 @@ 

         
 
+        

+        OpenQASM
+        

+              
+            

+            

+        

+
+
         

         Simulation Data JSON - Output amplitudes, detector results, display data, etc.
         

-             
-            
+             
+            
             
             

-            

+            

         

     
 
diff --git a/package.json b/package.json
index 07580244..01ca317a 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,7 @@
   },
   "scripts": {
     "build": "grunt build-src",
+    "build-debug": "grunt build-debug && cp ./out/quirk.html /mnt/x -f",
     "test": "grunt test",
     "test-chrome": "grunt test-chrome",
     "test-firefox": "grunt test-firefox",
diff --git a/src/ui/exports.js b/src/ui/exports.js
index 14b7bd78..a22ce021 100644
--- a/src/ui/exports.js
+++ b/src/ui/exports.js
@@ -77,6 +77,44 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
             }, 1000);
         });
 
+    const convertJsonToQasm = (jsonText) => {
+        const map = {
+            X: "x",
+            Y: "y",
+            Z: "z",
+            H: "h"
+        }
+        let qasmString = 'OPENQASM 2.0;\ninclude "qelib1.inc"\n';
+        //noinspection UnusedCatchParameterJS
+        var json = ""
+        try {
+            json = JSON.parse(jsonText)
+        }
+        catch(_) {
+            return "Invalid Circuit JSON."
+        }
+        const cols = json["cols"];
+        const numQubits = Math.max(...(cols.map((arr) => arr.length)));
+        const numCbits = cols.filter(arr => arr.includes("Measure"));
+        // HANDLE CASE WHEN No MEASUREMENTS
+        console.log(numCbits);
+        qasmString += `qreg q[${numQubits}];\n`
+        if (numCbits > 0) qasmString +=`creg c[${numCbits.length}];\n`;
+        
+        cols.forEach((col) => {
+            console.log(col)
+            col.forEach((gate, idx) => {
+                if (gate == '1') return;
+                console.log(gate);
+                var thisQasm = map[gate] + ` q[${idx}];\n`
+                qasmString += thisQasm;
+            });
+        });
+
+        return qasmString;
+
+    }
+
     // Export escaped link.
     (() => {
         const linkElement = /** @type {HTMLAnchorElement} */ document.getElementById('export-escaped-anchor');
@@ -98,6 +136,7 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
         setupButtonElementCopyToClipboard(copyButton, jsonTextElement, copyResultElement);
         revision.latestActiveCommit().subscribe(jsonText => {
             //noinspection UnusedCatchParameterJS
+            debugger;
             try {
                 let val = JSON.parse(jsonText);
                 jsonTextElement.innerText = JSON.stringify(val, null, '  ');
@@ -107,6 +146,25 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
         });
     })();
 
+    // Export QASM
+    (() => {
+        const qasmTextElement = /** @type {HTMLPreElement} */ document.getElementById('export-qasm-pre');
+        const copyButton = /** @type {HTMLButtonElement} */ document.getElementById('export-qasm-copy-button');
+        const copyResultElement = /** @type {HTMLElement} */ document.getElementById('export-qasm-copy-result');
+        setupButtonElementCopyToClipboard(copyButton, qasmTextElement, copyResultElement);
+        revision.latestActiveCommit().subscribe(jsonText => {
+            //noinspection UnusedCatchParameterJS
+            //debugger;
+            try {
+                let val = convertJsonToQasm(jsonText);
+                qasmTextElement.innerText = val;
+            } catch (_) {
+                console.error("ERROR")
+                qasmTextElement.innerText = jsonText;
+            }
+        });
+    })();
+
     // Export final output.
     (() => {
         const outputTextElement = /** @type {HTMLPreElement} */ document.getElementById('export-amplitudes-pre');

From d3fc8b68f350807373257e1029f32bc5ad9bfdc0 Mon Sep 17 00:00:00 2001
From: Aditya Giridharan 
Date: Fri, 20 Nov 2020 23:53:38 +0530
Subject: [PATCH 2/3] complete qasm export

---
 src/ui/exports.js | 175 ++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 154 insertions(+), 21 deletions(-)

diff --git a/src/ui/exports.js b/src/ui/exports.js
index a22ce021..0845a1b6 100644
--- a/src/ui/exports.js
+++ b/src/ui/exports.js
@@ -78,39 +78,173 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
         });
 
     const convertJsonToQasm = (jsonText) => {
+        // X, Y, Z, H, S, T, Sdg, Tdg, Swap, CX, CCX, RX, RY, RZ, SX, SXdg, Measure, CRX, CRY, CRZ
         const map = {
             X: "x",
             Y: "y",
             Z: "z",
-            H: "h"
+            H: "h",
+            "Z^½": "s",
+            "Z^¼": "t",
+            "Z^-½": "sdg",
+            "Z^-¼": "tdg",
+            "Swap": "swap",
+            "•": "c",
+            "Rxft": "rx",
+            "Ryft": "ry",
+            "Rzft": "rz",
+            "X^½": "sx",
+            "X^-½": "sxdg",
+            "Measure": "measure"
         }
         let qasmString = 'OPENQASM 2.0;\ninclude "qelib1.inc"\n';
         //noinspection UnusedCatchParameterJS
         var json = ""
+
+        const handleControlGates = (arr) => {
+            var qasmStr = "";
+            const controlGate = "•";
+            const acceptedGates = {
+                1: ['H', 'X', 'Y', 'Z', 'Rxft', 'Ryft', 'Rzft', 'X^½', 'Swap'],
+                2: ['X']
+            }
+            // the way quirk works, if you have a control in any column, all gates in the column are controlled
+            var numCtrls = arr.filter(elem => elem == controlGate).length;
+            //console.log(arr.filter(elem => Object.keys(map).includes(elem)))
+            if (numCtrls > 2) throw new Error("Too many controls (max 2)");
+
+            //check for unsupported gates
+            // if (arr.filter(elem => !acceptedGates[numCtrls].includes(elem) && elem != 1 && elem != controlGate).length !== 0) {
+            //     // check for invalid control ops
+            //     //TODO - better logging?
+            //     throw new Error("Invalid circuit - some controlled operations are not supported!");
+            // }
+
+            //check for at least 1 supported gate
+            if (arr.filter(elem => elem !== controlGate && elem !== 1).length === 0) { 
+                throw new Error("Invalid circuit - controlled operation not specified!")
+            }
+            
+
+            const ctrlString = "c".repeat(numCtrls);
+            const ctrlQubits = ` q[${arr.indexOf("•")}],` + (numCtrls == 2 ? `q[${arr.lastIndexOf("•")}],` : ``);
+
+            arr.forEach((gate, idx) => {
+                //console.log(gate)
+                if (gate == controlGate || gate == 1) return;
+                //if (!acceptedGates[numCtrls].includes(gate)) throw new Error(`Unsupported control gate (${ctrlString+map[gate]})`)
+                if (typeof gate == "string") {
+                    if (!acceptedGates[numCtrls].includes(gate)) throw new Error(`Unsupported control gate (${ctrlString+gate})`)
+                    var targetQubits;
+                    if (gate == "Swap") {
+                        if (arr.filter(elem => elem == 'Swap').length != 2) throw new Error('Wrong number of swaps!');
+                        targetQubits = `q[${arr.indexOf('Swap')}],q[${arr.lastIndexOf('Swap')}];\n`;
+                        arr[arr.lastIndexOf('Swap')] = arr[arr.indexOf('Swap')] = 1;
+                    }
+                    else targetQubits = `q[${idx}];\n`;
+                    qasmStr = qasmStr + ctrlString + map[gate] + ctrlQubits + targetQubits;
+                    //console.log(qasmStr);
+                }
+                else { //parametrized gate 
+                    if(!acceptedGates[numCtrls].includes(gate["id"])) throw new Error(`Unsupported control gate (${ctrlString+gate["id"]})`)
+                    qasmStr = qasmStr + ctrlString + `${map[gate["id"]]}(${gate["arg"]})${ctrlQubits}q[${idx}];\n`;
+                    //console.log(qasmStr);
+                }
+
+            });
+            return qasmStr;
+
+        }
+
+
         try {
             json = JSON.parse(jsonText)
+            const cols = json["cols"];
+            const numQubits = Math.max(...(cols.map((arr) => arr.length)));
+            const numCbits = cols.filter(arr => arr.includes("Measure")).length;
+
+            console.log(numCbits);
+            qasmString += `qreg q[${numQubits}];\n`
+            if (numCbits > 0) qasmString +=`creg c[${numCbits}];\n`;
+            
+            var measurements = 0;
+
+            cols.forEach((col) => {
+                //var measureStr = "";
+                if (col.includes('Rxft') || col.includes('Ryft') || col.includes('Rzft'))
+                    throw new Error("R*ft gates not supported, please provide a time-independent parameter")
+
+                // if col contains controls, parse it fully and move on
+                if (col.includes("•")) {
+                    qasmString += handleControlGates(col);
+                    return;
+                }
+
+
+                // no controls left!
+                col.forEach((gate, idx) => {
+                    if (gate == 1) return;
+                    if (typeof gate == "string") {
+                        if (!Object.keys(map).includes(gate)) throw new Error("Unsupported gate!");
+                        if (gate == "Measure") {
+                            qasmString += `measure q[${idx}]->c[${measurements}];\n`;
+                            measurements = measurements + 1;
+                            return;
+                        }
+                        if (gate == "Swap") {
+                            if (col.filter(elem => elem == 'Swap').length != 2) throw new Error('Wrong number of swaps!');
+                            var targetQubits = ` q[${col.indexOf('Swap')}],q[${col.lastIndexOf('Swap')}];\n`;
+                            col[col.lastIndexOf('Swap')] = col[col.indexOf('Swap')] = 1;
+                            qasmString += map[gate] + targetQubits;
+                            return;
+                        }
+                        qasmString += map[gate] + ` q[${idx}];\n`
+                    }
+                    else if(typeof gate == "object") {
+                        if (!Object.keys(map).includes(gate["id"])) throw new Error("Unsupported gate!");
+                        qasmString += `${map[gate["id"]]}(${gate["arg"]}) q[${idx}];\n`
+                    }
+                });
+
+
+                //check for 
+                // var measurements = 0;
+                // //console.log(col)
+                // var thisQasm = ``;
+                // var controls = 0;
+                // col.forEach((gate, idx) => {
+                //     if (gate == 1) return;
+                //     if (typeof gate == "string") {
+                //         //console.log(gate);
+                //         if (gate == "Measure") {
+                //             thisQasm += `measure q[${idx}] -> c[${measurements}];\n`;
+                //             measurements = measurements + 1;
+                //             return;
+                //         }
+                //         if (gate == "•") {
+                //             thisQasm += `c`;
+                //             controls = controls + 1;
+                //             if (controls > 2) throw new Error("Too many controls");
+                //             return;
+                //         }
+    
+                //         if (controls > 0 && !(["X", "Z"].includes(gate))) throw new Error("Unsupported control gate");
+                //         controls = 0;
+                //         thisQasm += map[gate] + ` q[${idx}];\n`
+                //         qasmString += thisQasm;
+                //     }
+                //     else if(typeof gate == "object") {
+                //         //console.log(gate, "OBJ!")
+                //         thisQasm = `${map[gate[id]]}(${gate[arg]}) q[${idx}];\n`
+                //     }
+                // });
+            });
         }
-        catch(_) {
+        catch(e) {
+            console.error(e)
             return "Invalid Circuit JSON."
         }
-        const cols = json["cols"];
-        const numQubits = Math.max(...(cols.map((arr) => arr.length)));
-        const numCbits = cols.filter(arr => arr.includes("Measure"));
-        // HANDLE CASE WHEN No MEASUREMENTS
-        console.log(numCbits);
-        qasmString += `qreg q[${numQubits}];\n`
-        if (numCbits > 0) qasmString +=`creg c[${numCbits.length}];\n`;
-        
-        cols.forEach((col) => {
-            console.log(col)
-            col.forEach((gate, idx) => {
-                if (gate == '1') return;
-                console.log(gate);
-                var thisQasm = map[gate] + ` q[${idx}];\n`
-                qasmString += thisQasm;
-            });
-        });
-
+        console.log(qasmString)
         return qasmString;
 
     }
@@ -136,7 +270,6 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
         setupButtonElementCopyToClipboard(copyButton, jsonTextElement, copyResultElement);
         revision.latestActiveCommit().subscribe(jsonText => {
             //noinspection UnusedCatchParameterJS
-            debugger;
             try {
                 let val = JSON.parse(jsonText);
                 jsonTextElement.innerText = JSON.stringify(val, null, '  ');

From 977d606b6c806ce7a9e7a04c67402f7ddc68bc26 Mon Sep 17 00:00:00 2001
From: Aditya Giridharan 
Date: Thu, 17 Dec 2020 20:24:07 +0530
Subject: [PATCH 3/3] clean up some code

---
 package-lock.json | 112 +++++++++++++++++++++++++++++++++++-----------
 src/ui/exports.js |  59 +++++-------------------
 2 files changed, 96 insertions(+), 75 deletions(-)

diff --git a/package-lock.json b/package-lock.json
index 992dd18b..b20085c3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -14,12 +14,14 @@
       "version": "14.10.1",
       "resolved": "https://registry.npmjs.org/@types/node/-/node-14.10.1.tgz",
       "integrity": "sha512-aYNbO+FZ/3KGeQCEkNhHFRIzBOUgc7QvcVNKXbfnhDkSfwUv91JsQQa10rDgKSTSLkXZ1UIyPe4FJJNVgw1xWQ==",
+      "dev": true,
       "optional": true
     },
     "@types/yauzl": {
       "version": "2.9.1",
       "resolved": "https://registry.npmjs.org/@types/yauzl/-/yauzl-2.9.1.tgz",
       "integrity": "sha512-A1b8SU4D10uoPjwb0lnHmmu8wZhR9d+9o2PKBQT2jU5YPTKsxac6M2qGAdY7VcL+dHHhARVUDmeg0rOrcd9EjA==",
+      "dev": true,
       "optional": true,
       "requires": {
         "@types/node": "*"
@@ -50,7 +52,8 @@
     "agent-base": {
       "version": "5.1.1",
       "resolved": "https://registry.npmjs.org/agent-base/-/agent-base-5.1.1.tgz",
-      "integrity": "sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g=="
+      "integrity": "sha512-TMeqbNl2fMW0nMjTEPOwe3J/PRFP4vqeoNuQMG0HlMrtm5QxKqdvAkZ1pRBQ/ulIyDD5Yq0nJ7YbdD8ey0TO3g==",
+      "dev": true
     },
     "amdefine": {
       "version": "1.0.1",
@@ -176,7 +179,8 @@
     "balanced-match": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/balanced-match/-/balanced-match-1.0.0.tgz",
-      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c="
+      "integrity": "sha1-ibTRmasr7kneFk6gK4nORi1xt2c=",
+      "dev": true
     },
     "base": {
       "version": "0.11.2",
@@ -242,7 +246,8 @@
     "base64-js": {
       "version": "1.3.1",
       "resolved": "https://registry.npmjs.org/base64-js/-/base64-js-1.3.1.tgz",
-      "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g=="
+      "integrity": "sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==",
+      "dev": true
     },
     "base64id": {
       "version": "2.0.0",
@@ -269,6 +274,7 @@
       "version": "4.0.3",
       "resolved": "https://registry.npmjs.org/bl/-/bl-4.0.3.tgz",
       "integrity": "sha512-fs4G6/Hu4/EE+F75J8DuN/0IpQqNjAdC7aEQv7Qt8MHGUH7Ckv2MwTEEeN9QehD0pfIDkMI1bkHYkKy7xHyKIg==",
+      "dev": true,
       "requires": {
         "buffer": "^5.5.0",
         "inherits": "^2.0.4",
@@ -303,6 +309,7 @@
       "version": "1.1.11",
       "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.11.tgz",
       "integrity": "sha512-iCuPHDFgrHX7H2vEI/5xpz07zSHB00TpugqhmYtVmMO6518mCuRMoOYFldEBl0g187ufozdaHgWKcYFb61qGiA==",
+      "dev": true,
       "requires": {
         "balanced-match": "^1.0.0",
         "concat-map": "0.0.1"
@@ -341,6 +348,7 @@
       "version": "5.6.0",
       "resolved": "https://registry.npmjs.org/buffer/-/buffer-5.6.0.tgz",
       "integrity": "sha512-/gDYp/UtU0eA1ys8bOs9J6a+E/KWIY+DZ+Q2WESNUA0jFRsJOc0SNUO6xJ5SGA1xueg3NL65W6s+NY5l9cunuw==",
+      "dev": true,
       "requires": {
         "base64-js": "^1.0.2",
         "ieee754": "^1.1.4"
@@ -349,7 +357,8 @@
     "buffer-crc32": {
       "version": "0.2.13",
       "resolved": "https://registry.npmjs.org/buffer-crc32/-/buffer-crc32-0.2.13.tgz",
-      "integrity": "sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI="
+      "integrity": "sha1-DTM+PwDqxQqhRUq9MO+MKl2ackI=",
+      "dev": true
     },
     "bytes": {
       "version": "3.1.0",
@@ -459,7 +468,8 @@
     "chownr": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/chownr/-/chownr-1.1.4.tgz",
-      "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg=="
+      "integrity": "sha512-jJ0bqzaylmJtVnNgzTeSOs8DPavpbYgEr/b0YL8/2GO3xJEhInFmhKMUnEJQjZumK7KXGFhUy89PrsJWlakBVg==",
+      "dev": true
     },
     "class-utils": {
       "version": "0.3.6",
@@ -573,7 +583,8 @@
     "concat-map": {
       "version": "0.0.1",
       "resolved": "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz",
-      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s="
+      "integrity": "sha1-2Klr13/Wjfd5OnMDajug1UBdR3s=",
+      "dev": true
     },
     "connect": {
       "version": "3.7.0",
@@ -700,7 +711,8 @@
     "devtools-protocol": {
       "version": "0.0.799653",
       "resolved": "https://registry.npmjs.org/devtools-protocol/-/devtools-protocol-0.0.799653.tgz",
-      "integrity": "sha512-t1CcaZbvm8pOlikqrsIM9GOa7Ipp07+4h/q9u0JXBWjPCjHdBl9KkddX87Vv9vBHoBGtwV79sYQNGnQM6iS5gg=="
+      "integrity": "sha512-t1CcaZbvm8pOlikqrsIM9GOa7Ipp07+4h/q9u0JXBWjPCjHdBl9KkddX87Vv9vBHoBGtwV79sYQNGnQM6iS5gg==",
+      "dev": true
     },
     "di": {
       "version": "0.0.1",
@@ -748,6 +760,7 @@
       "version": "1.4.4",
       "resolved": "https://registry.npmjs.org/end-of-stream/-/end-of-stream-1.4.4.tgz",
       "integrity": "sha512-+uw1inIHVPQoaVuHzRyXd21icM+cnt4CzD5rW+NC1wjOUSTOs+Te7FOv7AhN7vS9x/oIyhLP5PR1H+phQAHu5Q==",
+      "dev": true,
       "requires": {
         "once": "^1.4.0"
       }
@@ -1029,6 +1042,7 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/extract-zip/-/extract-zip-2.0.1.tgz",
       "integrity": "sha512-GDhU9ntwuKyGXdZBUgTIe+vXnWj0fppUEtMDL0+idd5Sta8TGpHssn/eusA9mrPr9qNDym6SxAYZjNvCn/9RBg==",
+      "dev": true,
       "requires": {
         "@types/yauzl": "^2.9.1",
         "debug": "^4.1.1",
@@ -1040,6 +1054,7 @@
           "version": "4.1.1",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
           "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
           "requires": {
             "ms": "^2.1.1"
           }
@@ -1047,7 +1062,8 @@
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
         }
       }
     },
@@ -1055,6 +1071,7 @@
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/fd-slicer/-/fd-slicer-1.1.0.tgz",
       "integrity": "sha1-JcfInLH5B3+IkbvmHY85Dq4lbx4=",
+      "dev": true,
       "requires": {
         "pend": "~1.2.0"
       }
@@ -1117,6 +1134,7 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/find-up/-/find-up-4.1.0.tgz",
       "integrity": "sha512-PpOwAdQ/YlXQ2vj8a3h8IipDuYRi3wceVQQGYWxNINccq40Anw7BlsEXCMbt1Zt+OLA6Fq9suIpIWD0OsnISlw==",
+      "dev": true,
       "requires": {
         "locate-path": "^5.0.0",
         "path-exists": "^4.0.0"
@@ -1204,7 +1222,8 @@
     "fs-constants": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs-constants/-/fs-constants-1.0.0.tgz",
-      "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow=="
+      "integrity": "sha512-y6OAwoSIf7FyjMIv94u+b5rdheZEjzR63GTyZJm5qh4Bi+2YgwLCcI/fPFZkL5PSixOt6ZNKm+w+Hfp/Bciwow==",
+      "dev": true
     },
     "fs-extra": {
       "version": "8.1.0",
@@ -1220,7 +1239,8 @@
     "fs.realpath": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/fs.realpath/-/fs.realpath-1.0.0.tgz",
-      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8="
+      "integrity": "sha1-FQStJSMVjKpA20onh8sBQRmU6k8=",
+      "dev": true
     },
     "fsevents": {
       "version": "2.1.3",
@@ -1239,6 +1259,7 @@
       "version": "5.2.0",
       "resolved": "https://registry.npmjs.org/get-stream/-/get-stream-5.2.0.tgz",
       "integrity": "sha512-nBF+F1rAZVCu/p7rjzgA+Yb4lfYXrpl7a6VmJrU8wF9I1CKvP/QwPNZHnOlwbTkY6dvtFIzFMSyQXbLoTQPRpA==",
+      "dev": true,
       "requires": {
         "pump": "^3.0.0"
       }
@@ -1259,6 +1280,7 @@
       "version": "7.1.6",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.6.tgz",
       "integrity": "sha512-LwaxwyZ72Lk7vZINtNNrywX0ZuLyStrdDtabefZKAY5ZGJhVtgdznluResxNmPitE0SAO+O26sWTHeKSI2wMBA==",
+      "dev": true,
       "requires": {
         "fs.realpath": "^1.0.0",
         "inflight": "^1.0.4",
@@ -1740,6 +1762,7 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/https-proxy-agent/-/https-proxy-agent-4.0.0.tgz",
       "integrity": "sha512-zoDhWrkR3of1l9QAL8/scJZyLu8j/gBkcwcaQOZh7Gyh/+uJQzGVETdgT30akuwkpL8HTRfssqI3BZuV18teDg==",
+      "dev": true,
       "requires": {
         "agent-base": "5",
         "debug": "4"
@@ -1749,6 +1772,7 @@
           "version": "4.1.1",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
           "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
           "requires": {
             "ms": "^2.1.1"
           }
@@ -1756,7 +1780,8 @@
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
         }
       }
     },
@@ -1772,7 +1797,8 @@
     "ieee754": {
       "version": "1.1.13",
       "resolved": "https://registry.npmjs.org/ieee754/-/ieee754-1.1.13.tgz",
-      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg=="
+      "integrity": "sha512-4vf7I2LYV/HaWerSo3XmlMkp5eZ83i+/CDluXi/IGTs/O1sejBNhTtnxzmRZfvOUqj7lZjqHkeTvpgSFDlWZTg==",
+      "dev": true
     },
     "indexof": {
       "version": "0.0.1",
@@ -1784,6 +1810,7 @@
       "version": "1.0.6",
       "resolved": "https://registry.npmjs.org/inflight/-/inflight-1.0.6.tgz",
       "integrity": "sha1-Sb1jMdfQLQwJvJEKEHW6gWW1bfk=",
+      "dev": true,
       "requires": {
         "once": "^1.3.0",
         "wrappy": "1"
@@ -1792,7 +1819,8 @@
     "inherits": {
       "version": "2.0.4",
       "resolved": "https://registry.npmjs.org/inherits/-/inherits-2.0.4.tgz",
-      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ=="
+      "integrity": "sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==",
+      "dev": true
     },
     "ini": {
       "version": "1.3.5",
@@ -2164,6 +2192,7 @@
       "version": "5.0.0",
       "resolved": "https://registry.npmjs.org/locate-path/-/locate-path-5.0.0.tgz",
       "integrity": "sha512-t7hw9pI+WvuwNJXwk5zVHpyhIqzg2qTlklJOf0mVxGSbe3Fp2VieZcduNYjaLDoy6p9uGpQEGWG87WpMKlNq8g==",
+      "dev": true,
       "requires": {
         "p-locate": "^4.1.0"
       }
@@ -2297,7 +2326,8 @@
     "mime": {
       "version": "2.4.6",
       "resolved": "https://registry.npmjs.org/mime/-/mime-2.4.6.tgz",
-      "integrity": "sha512-RZKhC3EmpBchfTGBVb8fb+RL2cWyw/32lshnsETttkBAyAUXSGHxbEJWWRXc751DrIxG1q04b8QwMbAwkRPpUA=="
+      "integrity": "sha512-RZKhC3EmpBchfTGBVb8fb+RL2cWyw/32lshnsETttkBAyAUXSGHxbEJWWRXc751DrIxG1q04b8QwMbAwkRPpUA==",
+      "dev": true
     },
     "mime-db": {
       "version": "1.44.0",
@@ -2318,6 +2348,7 @@
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
       "integrity": "sha512-yJHVQEhyqPLUTgt9B83PXu6W3rx4MvvHvSUvToogpwoGDOUQ+yDrR0HRot+yOCdCO7u4hX3pWft6kWBBcqh0UA==",
+      "dev": true,
       "requires": {
         "brace-expansion": "^1.1.7"
       }
@@ -2352,7 +2383,8 @@
     "mkdirp-classic": {
       "version": "0.5.3",
       "resolved": "https://registry.npmjs.org/mkdirp-classic/-/mkdirp-classic-0.5.3.tgz",
-      "integrity": "sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A=="
+      "integrity": "sha512-gKLcREMhtuZRwRAfqP3RFW+TK4JqApVBtOIftVgjuABpAtpxhPGaDcfvbhNvD0B8iD1oUr/txX35NjcaY6Ns/A==",
+      "dev": true
     },
     "ms": {
       "version": "2.0.0",
@@ -2502,6 +2534,7 @@
       "version": "1.4.0",
       "resolved": "https://registry.npmjs.org/once/-/once-1.4.0.tgz",
       "integrity": "sha1-WDsap3WWHUsROsF9nFC6753Xa9E=",
+      "dev": true,
       "requires": {
         "wrappy": "1"
       }
@@ -2532,6 +2565,7 @@
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/p-limit/-/p-limit-2.3.0.tgz",
       "integrity": "sha512-//88mFWSJx8lxCzwdAABTJL2MyWB12+eIY7MDL2SqLmAkeKU9qxRvWuSyTjm3FUmpBEMuFfckAIqEaVGUDxb6w==",
+      "dev": true,
       "requires": {
         "p-try": "^2.0.0"
       }
@@ -2540,6 +2574,7 @@
       "version": "4.1.0",
       "resolved": "https://registry.npmjs.org/p-locate/-/p-locate-4.1.0.tgz",
       "integrity": "sha512-R79ZZ/0wAxKGu3oYMlz8jy/kbhsNrS7SKZ7PxEHBgJ5+F2mtFW2fK2cOtBh1cHYkQsbzFV7I+EoRKe6Yt0oK7A==",
+      "dev": true,
       "requires": {
         "p-limit": "^2.2.0"
       }
@@ -2547,7 +2582,8 @@
     "p-try": {
       "version": "2.2.0",
       "resolved": "https://registry.npmjs.org/p-try/-/p-try-2.2.0.tgz",
-      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ=="
+      "integrity": "sha512-R4nPAVTAU0B9D35/Gk3uJf/7XYbQcyohSKdvAxIRSNghFl4e71hVoGnBNQz9cWaXxO2I10KTC+3jMdvvoKw6dQ==",
+      "dev": true
     },
     "parse-filepath": {
       "version": "1.0.2",
@@ -2599,12 +2635,14 @@
     "path-exists": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/path-exists/-/path-exists-4.0.0.tgz",
-      "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w=="
+      "integrity": "sha512-ak9Qy5Q7jYb2Wwcey5Fpvg2KoAc/ZIhLSLOSBmRmygPsGwkVVt0fZa0qrtMz+m6tJTAHfZQ8FnmB4MG4LWy7/w==",
+      "dev": true
     },
     "path-is-absolute": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/path-is-absolute/-/path-is-absolute-1.0.1.tgz",
-      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18="
+      "integrity": "sha1-F0uSaHNVNP+8es5r9TpanhtcX18=",
+      "dev": true
     },
     "path-parse": {
       "version": "1.0.6",
@@ -2630,7 +2668,8 @@
     "pend": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/pend/-/pend-1.2.0.tgz",
-      "integrity": "sha1-elfrVQpng/kRUzH89GY9XI4AelA="
+      "integrity": "sha1-elfrVQpng/kRUzH89GY9XI4AelA=",
+      "dev": true
     },
     "picomatch": {
       "version": "2.2.2",
@@ -2642,6 +2681,7 @@
       "version": "4.2.0",
       "resolved": "https://registry.npmjs.org/pkg-dir/-/pkg-dir-4.2.0.tgz",
       "integrity": "sha512-HRDzbaKjC+AOWVXxAU/x54COGeIv9eb+6CkDSQoNTt4XyWoIJvuPsXizxu/Fr23EiekbtZwmh1IcIG/l/a10GQ==",
+      "dev": true,
       "requires": {
         "find-up": "^4.0.0"
       }
@@ -2664,17 +2704,20 @@
     "progress": {
       "version": "2.0.3",
       "resolved": "https://registry.npmjs.org/progress/-/progress-2.0.3.tgz",
-      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA=="
+      "integrity": "sha512-7PiHtLll5LdnKIMw100I+8xJXR5gW2QwWYkT6iJva0bXitZKa/XMrSbdmg3r2Xnaidz9Qumd0VPaMrZlF9V9sA==",
+      "dev": true
     },
     "proxy-from-env": {
       "version": "1.1.0",
       "resolved": "https://registry.npmjs.org/proxy-from-env/-/proxy-from-env-1.1.0.tgz",
-      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg=="
+      "integrity": "sha512-D+zkORCbA9f1tdWRK0RaCR3GPv50cMxcrz4X8k5LTSUD1Dkw47mKJEZQNunItRTkWwgtaUSo1RVFRIG9ZXiFYg==",
+      "dev": true
     },
     "pump": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/pump/-/pump-3.0.0.tgz",
       "integrity": "sha512-LwZy+p3SFs1Pytd/jYct4wpv49HiYCqd9Rlc5ZVdk0V+8Yzv6jR5Blk3TRmPL1ft69TxP0IMZGJ+WPFU2BFhww==",
+      "dev": true,
       "requires": {
         "end-of-stream": "^1.1.0",
         "once": "^1.3.1"
@@ -2684,6 +2727,7 @@
       "version": "5.3.0",
       "resolved": "https://registry.npmjs.org/puppeteer/-/puppeteer-5.3.0.tgz",
       "integrity": "sha512-GjqMk5GRro3TO0sw3QMsF1H7n+/jaK2OW45qMvqjYUyJ7y4oA//9auy969HHhTG3HZXaMxY/NWXF/NXlAFIvtw==",
+      "dev": true,
       "requires": {
         "debug": "^4.1.0",
         "devtools-protocol": "0.0.799653",
@@ -2703,6 +2747,7 @@
           "version": "4.1.1",
           "resolved": "https://registry.npmjs.org/debug/-/debug-4.1.1.tgz",
           "integrity": "sha512-pYAIzeRo8J6KPEaJ0VWOh5Pzkbw/RetuzehGM7QRRX5he4fPHx2rdKMB256ehJCkX+XRQm16eZLqLNS8RSZXZw==",
+          "dev": true,
           "requires": {
             "ms": "^2.1.1"
           }
@@ -2710,7 +2755,8 @@
         "ms": {
           "version": "2.1.2",
           "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.2.tgz",
-          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w=="
+          "integrity": "sha512-sGkPx+VjMtmA6MX27oA4FBFELFCZZ4S4XqeGOXCv68tT+jb3vk/RyaKWP0PTKyWtmLSM0b+adUTEvbs1PEaH2w==",
+          "dev": true
         }
       }
     },
@@ -2748,6 +2794,7 @@
       "version": "3.6.0",
       "resolved": "https://registry.npmjs.org/readable-stream/-/readable-stream-3.6.0.tgz",
       "integrity": "sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==",
+      "dev": true,
       "requires": {
         "inherits": "^2.0.3",
         "string_decoder": "^1.1.1",
@@ -2853,6 +2900,7 @@
       "version": "3.0.2",
       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-3.0.2.tgz",
       "integrity": "sha512-JZkJMZkAGFFPP2YqXZXPbMlMBgsxzE8ILs4lMIX/2o0L9UBw9O/Y3o6wFw/i9YLapcUJWwqbi3kdxIPdC62TIA==",
+      "dev": true,
       "requires": {
         "glob": "^7.1.3"
       }
@@ -2866,7 +2914,8 @@
     "safe-buffer": {
       "version": "5.2.1",
       "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
-      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ=="
+      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
+      "dev": true
     },
     "safe-regex": {
       "version": "1.1.0",
@@ -3340,6 +3389,7 @@
       "version": "1.3.0",
       "resolved": "https://registry.npmjs.org/string_decoder/-/string_decoder-1.3.0.tgz",
       "integrity": "sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==",
+      "dev": true,
       "requires": {
         "safe-buffer": "~5.2.0"
       }
@@ -3366,6 +3416,7 @@
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/tar-fs/-/tar-fs-2.1.0.tgz",
       "integrity": "sha512-9uW5iDvrIMCVpvasdFHW0wJPez0K4JnMZtsuIeDI7HyMGJNxmDZDOCQROr7lXyS+iL/QMpj07qcjGYTSdRFXUg==",
+      "dev": true,
       "requires": {
         "chownr": "^1.1.1",
         "mkdirp-classic": "^0.5.2",
@@ -3377,6 +3428,7 @@
       "version": "2.1.4",
       "resolved": "https://registry.npmjs.org/tar-stream/-/tar-stream-2.1.4.tgz",
       "integrity": "sha512-o3pS2zlG4gxr67GmFYBLlq+dM8gyRGUOvsrHclSkvtVtQbjV0s/+ZE8OpICbaj8clrX3tjeHngYGP7rweaBnuw==",
+      "dev": true,
       "requires": {
         "bl": "^4.0.3",
         "end-of-stream": "^1.4.1",
@@ -3388,7 +3440,8 @@
     "through": {
       "version": "2.3.8",
       "resolved": "https://registry.npmjs.org/through/-/through-2.3.8.tgz",
-      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU="
+      "integrity": "sha1-DdTJ/6q8NXlgsbckEV1+Doai4fU=",
+      "dev": true
     },
     "tmp": {
       "version": "0.2.1",
@@ -3507,6 +3560,7 @@
       "version": "1.4.3",
       "resolved": "https://registry.npmjs.org/unbzip2-stream/-/unbzip2-stream-1.4.3.tgz",
       "integrity": "sha512-mlExGW4w71ebDJviH16lQLtZS32VKqsSfk80GCfUlwT/4/hNRFsoscrF/c++9xinkMzECL1uL9DDwXqFWkruPg==",
+      "dev": true,
       "requires": {
         "buffer": "^5.2.1",
         "through": "^2.3.8"
@@ -3613,7 +3667,8 @@
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
+      "dev": true
     },
     "utils-merge": {
       "version": "1.0.1",
@@ -3682,12 +3737,14 @@
     "wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
-      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8=",
+      "dev": true
     },
     "ws": {
       "version": "7.3.1",
       "resolved": "https://registry.npmjs.org/ws/-/ws-7.3.1.tgz",
-      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA=="
+      "integrity": "sha512-D3RuNkynyHmEJIpD2qrgVkc9DQ23OrN/moAwZX4L8DfvszsJxpjQuUq3LMx6HoYji9fbIOBY18XWBsAux1ZZUA==",
+      "dev": true
     },
     "xmlhttprequest-ssl": {
       "version": "1.5.5",
@@ -3734,6 +3791,7 @@
       "version": "2.10.0",
       "resolved": "https://registry.npmjs.org/yauzl/-/yauzl-2.10.0.tgz",
       "integrity": "sha1-x+sXyT4RLLEIb6bY5R+wZnt5pfk=",
+      "dev": true,
       "requires": {
         "buffer-crc32": "~0.2.3",
         "fd-slicer": "~1.1.0"
diff --git a/src/ui/exports.js b/src/ui/exports.js
index 0845a1b6..92a24e29 100644
--- a/src/ui/exports.js
+++ b/src/ui/exports.js
@@ -97,7 +97,7 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
             "X^-½": "sxdg",
             "Measure": "measure"
         }
-        let qasmString = 'OPENQASM 2.0;\ninclude "qelib1.inc"\n';
+        let qasmString = 'OPENQASM 2.0;include "qelib1.inc";';//here
         //noinspection UnusedCatchParameterJS
         var json = ""
 
@@ -110,7 +110,6 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
             }
             // the way quirk works, if you have a control in any column, all gates in the column are controlled
             var numCtrls = arr.filter(elem => elem == controlGate).length;
-            //console.log(arr.filter(elem => Object.keys(map).includes(elem)))
             if (numCtrls > 2) throw new Error("Too many controls (max 2)");
 
             //check for unsupported gates
@@ -130,7 +129,6 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
             const ctrlQubits = ` q[${arr.indexOf("•")}],` + (numCtrls == 2 ? `q[${arr.lastIndexOf("•")}],` : ``);
 
             arr.forEach((gate, idx) => {
-                //console.log(gate)
                 if (gate == controlGate || gate == 1) return;
                 //if (!acceptedGates[numCtrls].includes(gate)) throw new Error(`Unsupported control gate (${ctrlString+map[gate]})`)
                 if (typeof gate == "string") {
@@ -138,16 +136,16 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
                     var targetQubits;
                     if (gate == "Swap") {
                         if (arr.filter(elem => elem == 'Swap').length != 2) throw new Error('Wrong number of swaps!');
-                        targetQubits = `q[${arr.indexOf('Swap')}],q[${arr.lastIndexOf('Swap')}];\n`;
+                        targetQubits = `q[${arr.indexOf('Swap')}],q[${arr.lastIndexOf('Swap')}];`;//here
                         arr[arr.lastIndexOf('Swap')] = arr[arr.indexOf('Swap')] = 1;
                     }
-                    else targetQubits = `q[${idx}];\n`;
+                    else targetQubits = `q[${idx}];`;//here
                     qasmStr = qasmStr + ctrlString + map[gate] + ctrlQubits + targetQubits;
                     //console.log(qasmStr);
                 }
                 else { //parametrized gate 
                     if(!acceptedGates[numCtrls].includes(gate["id"])) throw new Error(`Unsupported control gate (${ctrlString+gate["id"]})`)
-                    qasmStr = qasmStr + ctrlString + `${map[gate["id"]]}(${gate["arg"]})${ctrlQubits}q[${idx}];\n`;
+                    qasmStr = qasmStr + ctrlString + `${map[gate["id"]]}(${gate["arg"]})${ctrlQubits}q[${idx}];`;//here
                     //console.log(qasmStr);
                 }
 
@@ -160,12 +158,12 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
         try {
             json = JSON.parse(jsonText)
             const cols = json["cols"];
+            if (cols.length === 0) return "Empty circuit";
             const numQubits = Math.max(...(cols.map((arr) => arr.length)));
             const numCbits = cols.filter(arr => arr.includes("Measure")).length;
 
-            console.log(numCbits);
-            qasmString += `qreg q[${numQubits}];\n`
-            if (numCbits > 0) qasmString +=`creg c[${numCbits}];\n`;
+            qasmString += `qreg q[${numQubits}];`;//here
+            if (numCbits > 0) qasmString +=`creg c[${numCbits}];`;//here
             
             var measurements = 0;
 
@@ -187,66 +185,31 @@ function initExports(revision, mostRecentStats, obsIsAnyOverlayShowing) {
                     if (typeof gate == "string") {
                         if (!Object.keys(map).includes(gate)) throw new Error("Unsupported gate!");
                         if (gate == "Measure") {
-                            qasmString += `measure q[${idx}]->c[${measurements}];\n`;
+                            qasmString += `measure q[${idx}]->c[${measurements}];`;//here
                             measurements = measurements + 1;
                             return;
                         }
                         if (gate == "Swap") {
                             if (col.filter(elem => elem == 'Swap').length != 2) throw new Error('Wrong number of swaps!');
-                            var targetQubits = ` q[${col.indexOf('Swap')}],q[${col.lastIndexOf('Swap')}];\n`;
+                            var targetQubits = ` q[${col.indexOf('Swap')}],q[${col.lastIndexOf('Swap')}];`;//here
                             col[col.lastIndexOf('Swap')] = col[col.indexOf('Swap')] = 1;
                             qasmString += map[gate] + targetQubits;
                             return;
                         }
-                        qasmString += map[gate] + ` q[${idx}];\n`
+                        qasmString += map[gate] + ` q[${idx}];`;//here
                     }
                     else if(typeof gate == "object") {
                         if (!Object.keys(map).includes(gate["id"])) throw new Error("Unsupported gate!");
-                        qasmString += `${map[gate["id"]]}(${gate["arg"]}) q[${idx}];\n`
+                        qasmString += `${map[gate["id"]]}(${gate["arg"]}) q[${idx}];`;//here
                     }
                 });
-
-
-                //check for 
-                // var measurements = 0;
-                // //console.log(col)
-                // var thisQasm = ``;
-                // var controls = 0;
-                // col.forEach((gate, idx) => {
-                //     if (gate == 1) return;
-                //     if (typeof gate == "string") {
-                //         //console.log(gate);
-                //         if (gate == "Measure") {
-                //             thisQasm += `measure q[${idx}] -> c[${measurements}];\n`;
-                //             measurements = measurements + 1;
-                //             return;
-                //         }
-                //         if (gate == "•") {
-                //             thisQasm += `c`;
-                //             controls = controls + 1;
-                //             if (controls > 2) throw new Error("Too many controls");
-                //             return;
-                //         }
-    
-                //         if (controls > 0 && !(["X", "Z"].includes(gate))) throw new Error("Unsupported control gate");
-                //         controls = 0;
-                //         thisQasm += map[gate] + ` q[${idx}];\n`
-                //         qasmString += thisQasm;
-                //     }
-                //     else if(typeof gate == "object") {
-                //         //console.log(gate, "OBJ!")
-                //         thisQasm = `${map[gate[id]]}(${gate[arg]}) q[${idx}];\n`
-                //     }
-                // });
             });
         }
         catch(e) {
             console.error(e)
             return "Invalid Circuit JSON."
         }
-        console.log(qasmString)
         return qasmString;
-
     }
 
     // Export escaped link.