Fixing lint warning that came with the new version of JSCS

Also some other minor code cleanup

src/js/parser/javascript.js

@@ -78,7 +78,7 @@ export default class Parser {
 
   // Render the parsed expression to an SVG.
   render() {
-    var svg = Snap(this.container.querySelector('svg'));
+    let svg = Snap(this.container.querySelector('svg'));
 
     return this.parsed.render(svg.group())
       // Once rendering is complete, the rendered expression is positioned and

src/js/parser/javascript/charset_range.js

@@ -9,7 +9,7 @@ export default {
 
   // Renders the charset range into the currently set container
   _render() {
-    var contents = [
+    let contents = [
       this.first,
       this.container.text(0, 0, '-'),
       this.last

src/js/parser/javascript/escape.js

@@ -30,7 +30,7 @@ export default {
   },
 
   setup() {
-    var addHex;
+    let addHex;
 
     // The escape code. For an escape such as `\b` it would be "b".
     this.code = this.properties.esc.properties.code.textValue;
@@ -69,7 +69,7 @@ export default {
   7: ['Back reference (group = 7)', -1, false],
   8: ['Back reference (group = 8)', -1, false],
   9: ['Back reference (group = 9)', -1, false],
-  0() {
+  0: function() {
     if (this.arg) {
       return [`octal: ${this.arg}`, parseInt(this.arg, 8), true];
     } else {

src/js/parser/javascript/match.js

@@ -29,13 +29,9 @@ export default {
 
   // Renders the match into the currently set container.
   _render() {
-    var partPromises,
-        items;
-
     // Render each of the match fragments.
-    partPromises = _.map(this.parts, part => part.render(this.container.group()));
-
-    items = _(partPromises).compact().value();
+    let partPromises = _.map(this.parts, part => part.render(this.container.group())),
+        items = _(partPromises).compact().value();
 
     // Handle the situation where a regular expression of `()` is rendered.
     // This leads to a Match node with no fragments. Something must be rendered
@@ -66,7 +62,7 @@ export default {
   // Returns an array of SVG path strings between each item.
   // - __items__ - Array of SVG elements or nodes.
   connectorPaths(items) {
-    var prev, next;
+    let prev, next;
 
     prev = util.normalizeBBox(_.first(items).getBBox());
     return _.map(items.slice(1), item => {

src/js/parser/javascript/match_fragment.js

@@ -52,22 +52,21 @@ export default {
   // Renders label for the loop path indicating how many times the content may
   // be matched.
   loopLabel() {
-    var labelStr = this.repeat.label,
-        tooltipStr = this.repeat.tooltip,
-        label, tooltip, labelBox, box;
+    let labelStr = this.repeat.label,
+        tooltipStr = this.repeat.tooltip;
 
     if (labelStr) {
-      label = this.container.text(0, 0, [labelStr])
-        .addClass('repeat-label');
+      let label = this.container.text(0, 0, [labelStr])
+            .addClass('repeat-label'),
+          labelBox = label.getBBox(),
+          box = this.getBBox();
 
       if (tooltipStr) {
-        tooltip = this.container.el('title')
+        let tooltip = this.container.el('title')
           .append(this.container.text(0, 0, tooltipStr));
         label.append(tooltip);
       }
 
-      box = this.getBBox();
-      labelBox = label.getBBox();
       label.transform(Snap.matrix().translate(
         box.x2 - labelBox.width - (this.repeat.hasSkip ? 5 : 0),
         box.y2 + labelBox.height));

src/js/parser/javascript/node.js

@@ -116,17 +116,17 @@ export default class Node {
   //
   // - __text__ - String or array of strings to render as a label.
   renderLabel(text) {
-    var group = this.container.group()
+    let group = this.container.group()
           .addClass('label'),
         rect = group.rect(),
-        text = group.text(0, 0, _.flatten([text]));
+        label = group.text(0, 0, _.flatten([text]));
 
     return this.deferredStep()
       .then(() => {
-        let box = text.getBBox(),
+        let box = label.getBBox(),
             margin = 5;
 
-        text.transform(Snap.matrix()
+        label.transform(Snap.matrix()
           .translate(margin, box.height / 2 + 2 * margin));
 
         rect.attr({
@@ -140,12 +140,12 @@ export default class Node {
 
   // Renders a labeled box around another SVG element. Returns a Promise.
   //
-  // - __label__ - String or array of strings to label the box with.
+  // - __text__ - String or array of strings to label the box with.
   // - __content__ - SVG element to wrap in the box.
   // - __options.padding__ - Pixels of padding to place between the content and
   //    the box.
-  renderLabeledBox(label, content, options) {
-    var label = this.container.text(0, 0, _.flatten([label]))
+  renderLabeledBox(text, content, options) {
+    let label = this.container.text(0, 0, _.flatten([text]))
           .addClass(`${this.type}-label`),
         box = this.container.rect()
           .addClass(`${this.type}-box`)

src/js/parser/javascript/regexp.js

@@ -9,7 +9,7 @@ export default {
 
   // Renders the regexp into the currently set container.
   _render() {
-    var matchContainer = this.container.group()
+    let matchContainer = this.container.group()
       .addClass('regexp-matches')
       .transform(Snap.matrix()
         .translate(20, 0));
@@ -56,7 +56,7 @@ export default {
   // - __containerBox__ - Bounding box of the container.
   // - __match__ - Match node that the line will be drawn to.
   makeSide(containerBox, match) {
-    var box = match.getBBox(),
+    let box = match.getBBox(),
         distance = Math.abs(box.ay - containerBox.cy);
 
     // Only need to draw side lines if the match is more than 15 pixels from
@@ -79,7 +79,7 @@ export default {
   // - __containerBox__ - Bounding box of the container.
   // - __match__ - Match node that the line will be drawn to.
   makeCurve(containerBox, match) {
-    var box = match.getBBox(),
+    let box = match.getBBox(),
         distance = Math.abs(box.ay - containerBox.cy);
 
     if (distance >= 15) {
@@ -109,7 +109,7 @@ export default {
   // - __containerBox__ - Bounding box of the container.
   // - __match__ - Match node that the line will be drawn to.
   makeConnector(containerBox, match) {
-    var box = match.getBBox();
+    let box = match.getBBox();
 
     return `M0,${box.ay}h${box.ax}M${box.ax2},${box.ay}H${containerBox.width}`;
   },

src/js/parser/javascript/repeat.js

@@ -76,7 +76,7 @@ export default {
   // Returns the path spec to render the line that skips over the content for
   // fragments that are optionally matched.
   skipPath(box) {
-    var paths = [];
+    let paths = [];
 
     if (this.hasSkip) {
       let vert = Math.max(0, box.ay - box.y - 10),
@@ -96,7 +96,7 @@ export default {
   // Returns the path spec to render the line that repeats the content for
   // fragments that are matched more than once.
   loopPath(box) {
-    var paths = [];
+    let paths = [];
 
     if (this.hasLoop) {
       let vert = box.y2 - box.ay - 10;

src/js/parser/javascript/root.js

@@ -14,7 +14,7 @@ export default {
 
   // Renders the root into the currently set container.
   _render() {
-    var flagText;
+    let flagText;
 
     // Render a label for any flags that have been set of the expression.
     if (this.flags.length > 0) {
@@ -24,8 +24,6 @@ export default {
     // Render the content of the regular expression.
     return this.regexp.render(this.container.group())
       .then(() => {
-        let box;
-
         // Move rendered regexp to account for flag label and to allow for
         // decorative elements.
         if (flagText) {
@@ -36,7 +34,7 @@ export default {
             .translate(10, 0));
         }
 
-        box = this.regexp.getBBox();
+        let box = this.regexp.getBBox();
 
         // Render decorative elements.
         this.container.path(`M${box.ax},${box.ay}H0M${box.ax2},${box.ay}H${box.x2 + 10}`);

src/js/parser/javascript/subexp.js

@@ -34,7 +34,7 @@ export default {
     // **NOTE:** `this.label()` **MUST** be called here, in _render, and before
     // any child nodes are rendered. This is to keep the group numbers in the
     // correct order.
-    var label = this.label();
+    let label = this.label();
 
     // Render the contained regexp.
     return this.regexp.render(this.container.group())

src/js/regexper.js

@@ -63,7 +63,7 @@ export default class Regexper {
 
   // Event handler for URL hash changes. Starts rendering of the expression.
   hashchangeListener() {
-    var expr = this._getHash();
+    let expr = this._getHash();
 
     if (expr instanceof Error) {
       this.state = 'has-error';
@@ -85,11 +85,9 @@ export default class Regexper {
 
   // Detect if https://bugzilla.mozilla.org/show_bug.cgi?id=483304 is in effect
   detectBuggyHash() {
-    var url;
-
     if (typeof window.URL === 'function') {
       try {
-        url = new URL('http://regexper.com/#%25');
+        let url = new URL('http://regexper.com/#%25');
         this.buggyHash = (url.hash === '#%');
       }
       catch(e) {
@@ -108,9 +106,8 @@ export default class Regexper {
   // automated testing, but also does some basic error handling for malformed
   // URLs.
   _getHash() {
-    var hash;
     try {
-      hash = location.hash.slice(1)
+      let hash = location.hash.slice(1)
       return this.buggyHash ? hash : decodeURIComponent(hash);
     }
     catch(e) {
@@ -155,7 +152,7 @@ export default class Regexper {
 
   // Update the URLs of the 'download' and 'permalink' links.
   updateLinks() {
-    var classes = _.without(this.links.className.split(' '), ['hide-download', 'hide-permalink']);
+    let classes = _.without(this.links.className.split(' '), ['hide-download', 'hide-permalink']);
 
     // Create the 'download' image URL.
     try {
@@ -192,7 +189,7 @@ export default class Regexper {
   //
   // - __expression__ - Regular expression to render
   renderRegexp(expression) {
-    var parseError = false,
+    let parseError = false,
         startTime, endTime;
 
     // When a render is already in progress, cancel it and try rendering again