WIP: Starting on toggling comments.

spec/app/line-commenter-spec.coffee

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+Buffer = require 'buffer'
+Highlighter = require 'highlighter'
+LineCommenter = require 'line-commenter'
+
+describe "LineCommenter", ->
+  [buffer, lineCommenter] = []
+
+  beforeEach ->
+    buffer = new Buffer(require.resolve('fixtures/sample.js'))
+    highlighter = new Highlighter(buffer)
+    lineCommenter = new LineCommenter(highlighter)
+
+  fdescribe "toggleLineCommentsInRange", ->
+    lineCommenter.toggleLineCommentsInRange([[4, 5], [7, 8]])
+    expect(buffer.lineForRow(4)).toBe "//    while(items.length > 0) {"
+    expect(buffer.lineForRow(5)).toBe "//      current = items.shift();"
+    expect(buffer.lineForRow(6)).toBe "//      current < pivot ? left.push(current) : right.push(current);"
+    expect(buffer.lineForRow(7)).toBe "//    }"

src/app/line-commenter.coffee

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+Range = require 'range'
+
+module.exports =
+class LineCommenter
+  highlighter: null
+  buffer: null
+  aceMode: null
+
+  constructor: (@highlighter) ->
+    @buffer = @highlighter.buffer
+    @aceMode = @buffer.getMode()
+
+  toggleLineCommentsInRange: (range) ->
+    range = Range.fromObject(range)
+
+    @aceMode.tog
+