Use new bulk spell-checking method in task handler

Author: maxbrunsfeld

lib/spell-check-handler.coffee

@@ -1,18 +1,29 @@
 SpellChecker = require 'spellchecker'
 
-wordRegex = /(?:^|[\s\[\]"'])([a-zA-Z]+([a-zA-Z']+[a-zA-Z])?)(?=[\s\.\[\]:,"']|$)/g
-
 module.exports = ({id, text}) ->
+  misspelledCharacterRanges = SpellChecker.checkSpelling(text)
+
   row = 0
+  rangeIndex = 0
+  characterIndex = 0
   misspellings = []
-  for line in text.split('\n')
-    while matches = wordRegex.exec(line)
-      word = matches[1]
-      continue if word in ['GitHub', 'github']
-      continue unless SpellChecker.isMisspelled(word)
+  while characterIndex < text.length and rangeIndex < misspelledCharacterRanges.length
+    lineBreakIndex = text.indexOf('\n', characterIndex)
+    if lineBreakIndex is -1
+      lineBreakIndex = Infinity
 
-      startColumn = matches.index + matches[0].length - word.length
-      endColumn = startColumn + word.length
-      misspellings.push([[row, startColumn], [row, endColumn]])
+    loop
+      range = misspelledCharacterRanges[rangeIndex]
+      if range and range.start < lineBreakIndex
+        misspellings.push([
+          [row, range.start - characterIndex],
+          [row, range.end - characterIndex]
+        ])
+        rangeIndex++
+      else
+        break
+
+    characterIndex = lineBreakIndex + 1
     row++
+
   {id, misspellings}