Support experimental spell checking feature (en-US only), can be enabled by the YAML meta option

public/js/extra.js

@@ -84,12 +84,14 @@ function parseMeta(md, edit, view, toc, tocAffix) {
     var lang = null;
     var dir = null;
     var breaks = true;
+    var spellcheck = false;
     if (md && md.meta) {
         var meta = md.meta;
         robots = meta.robots;
         lang = meta.lang;
         dir = meta.dir;
         breaks = meta.breaks;
+        spellcheck = meta.spellcheck;
     }
     //robots meta
     var robotsMeta = $('meta[name=robots]');
@@ -131,6 +133,18 @@ function parseMeta(md, edit, view, toc, tocAffix) {
     } else {
         md.options.breaks = true;
     }
+    // spell check
+    if (typeof editor === 'object') {
+        var mode = null;
+        if (typeof spellcheck === 'boolean' && spellcheck) {
+            mode = 'spell-checker';
+        } else {
+            mode = 'gfm';
+        }
+        if (mode && mode !== editor.getOption('mode')) {
+            editor.setOption('mode', mode);
+        }
+    }
 }
 
 var viewAjaxCallback = null;

public/js/index.js

@@ -253,6 +253,7 @@ var textit = document.getElementById("textit");
 if (!textit) throw new Error("There was no textit area!");
 var editor = CodeMirror.fromTextArea(textit, {
     mode: 'gfm',
+    backdrop: 'gfm',
     keyMap: "sublime",
     viewportMargin: viewportMargin,
     styleActiveLine: true,

public/vendor/codemirror-spell-checker/en_US.aff

@@ -0,0 +1,205 @@
+SET UTF-8
+TRY esianrtolcdugmphbyfvkwzESIANRTOLCDUGMPHBYFVKWZ'
+ICONV 1
+ICONV ’ '
+NOSUGGEST !
+
+# ordinal numbers
+COMPOUNDMIN 1
+# only in compounds: 1th, 2th, 3th
+ONLYINCOMPOUND c
+# compound rules:
+# 1. [0-9]*1[0-9]th (10th, 11th, 12th, 56714th, etc.)
+# 2. [0-9]*[02-9](1st|2nd|3rd|[4-9]th) (21st, 22nd, 123rd, 1234th, etc.)
+COMPOUNDRULE 2
+COMPOUNDRULE n*1t
+COMPOUNDRULE n*mp
+WORDCHARS 0123456789
+
+PFX A Y 1
+PFX A   0     re         .
+
+PFX I Y 1
+PFX I   0     in         .
+
+PFX U Y 1
+PFX U   0     un         .
+
+PFX C Y 1
+PFX C   0     de          .
+
+PFX E Y 1
+PFX E   0     dis         .
+
+PFX F Y 1
+PFX F   0     con         .
+
+PFX K Y 1
+PFX K   0     pro         .
+
+SFX V N 2
+SFX V   e     ive        e
+SFX V   0     ive        [^e]
+
+SFX N Y 3
+SFX N   e     ion        e
+SFX N   y     ication    y 
+SFX N   0     en         [^ey] 
+
+SFX X Y 3
+SFX X   e     ions       e
+SFX X   y     ications   y
+SFX X   0     ens        [^ey]
+
+SFX H N 2
+SFX H   y     ieth       y
+SFX H   0     th         [^y] 
+
+SFX Y Y 1
+SFX Y   0     ly         .
+
+SFX G Y 2
+SFX G   e     ing        e
+SFX G   0     ing        [^e] 
+
+SFX J Y 2
+SFX J   e     ings       e
+SFX J   0     ings       [^e]
+
+SFX D Y 4
+SFX D   0     d          e
+SFX D   y     ied        [^aeiou]y
+SFX D   0     ed         [^ey]
+SFX D   0     ed         [aeiou]y
+
+SFX T N 4
+SFX T   0     st         e
+SFX T   y     iest       [^aeiou]y
+SFX T   0     est        [aeiou]y
+SFX T   0     est        [^ey]
+
+SFX R Y 4
+SFX R   0     r          e
+SFX R   y     ier        [^aeiou]y
+SFX R   0     er         [aeiou]y
+SFX R   0     er         [^ey]
+
+SFX Z Y 4
+SFX Z   0     rs         e
+SFX Z   y     iers       [^aeiou]y
+SFX Z   0     ers        [aeiou]y
+SFX Z   0     ers        [^ey]
+
+SFX S Y 4
+SFX S   y     ies        [^aeiou]y
+SFX S   0     s          [aeiou]y
+SFX S   0     es         [sxzh]
+SFX S   0     s          [^sxzhy]
+
+SFX P Y 3
+SFX P   y     iness      [^aeiou]y
+SFX P   0     ness       [aeiou]y
+SFX P   0     ness       [^y]
+
+SFX M Y 1
+SFX M   0     's         .
+
+SFX B Y 3
+SFX B   0     able       [^aeiou]
+SFX B   0     able       ee
+SFX B   e     able       [^aeiou]e
+
+SFX L Y 1
+SFX L   0     ment       .
+
+REP 90
+REP a ei
+REP ei a
+REP a ey
+REP ey a
+REP ai ie
+REP ie ai
+REP alot a_lot
+REP are air
+REP are ear
+REP are eir
+REP air are
+REP air ere
+REP ere air
+REP ere ear
+REP ere eir
+REP ear are
+REP ear air
+REP ear ere
+REP eir are
+REP eir ere
+REP ch te
+REP te ch
+REP ch ti
+REP ti ch
+REP ch tu
+REP tu ch
+REP ch s
+REP s ch
+REP ch k
+REP k ch
+REP f ph
+REP ph f
+REP gh f
+REP f gh
+REP i igh
+REP igh i
+REP i uy
+REP uy i
+REP i ee
+REP ee i
+REP j di
+REP di j
+REP j gg
+REP gg j
+REP j ge
+REP ge j
+REP s ti
+REP ti s
+REP s ci
+REP ci s
+REP k cc
+REP cc k
+REP k qu
+REP qu k
+REP kw qu
+REP o eau
+REP eau o
+REP o ew
+REP ew o
+REP oo ew
+REP ew oo
+REP ew ui
+REP ui ew
+REP oo ui
+REP ui oo
+REP ew u
+REP u ew
+REP oo u
+REP u oo
+REP u oe
+REP oe u
+REP u ieu
+REP ieu u
+REP ue ew
+REP ew ue
+REP uff ough
+REP oo ieu
+REP ieu oo
+REP ier ear
+REP ear ier
+REP ear air
+REP air ear
+REP w qu
+REP qu w
+REP z ss
+REP ss z
+REP shun tion
+REP shun sion
+REP shun cion
+REP size cise

public/vendor/codemirror-spell-checker/spell-checker.min.css

@@ -0,0 +1,7 @@
+/**
+ * codemirror-spell-checker v1.0.6
+ * Copyright Next Step Webs, Inc.
+ * @link https://github.com/NextStepWebs/codemirror-spell-checker
+ * @license MIT
+ */
+.CodeMirror .cm-spell-error:not(.cm-url):not(.cm-comment):not(.cm-tag):not(.cm-word){border-bottom:1px dashed rgba(255,0,0,.8)}

public/views/foot.ejs

@@ -31,6 +31,7 @@
 <script src="<%- url %>/vendor/codemirror/codemirror.min.js" defer></script>
 <script src="<%- url %>/vendor/inlineAttachment/inline-attachment.js" defer></script>
 <script src="<%- url %>/vendor/inlineAttachment/codemirror.inline-attachment.js" defer></script>
+<script src="<%- url %>/vendor/codemirror-spell-checker/spell-checker.min.js" defer></script>
 <!--ot-->
 <script src="<%- url %>/vendor/ot/ot.min.js" defer></script>
 <!--others-->

public/views/head.ejs

@@ -23,6 +23,7 @@
 <% } %>
 <link rel="stylesheet" href="<%- url %>/vendor/jquery-ui/jquery-ui.min.css">
 <link rel="stylesheet" href="<%- url %>/vendor/codemirror/lib/codemirror.css">
+<link rel="stylesheet" href="<%- url %>/vendor/codemirror-spell-checker/spell-checker.min.css">
 <link rel="stylesheet" href="<%- url %>/vendor/codemirror/addon/fold/foldgutter.css">
 <link rel="stylesheet" href="<%- url %>/vendor/codemirror/addon/display/fullscreen.css">
 <link rel="stylesheet" href="<%- url %>/vendor/codemirror/addon/dialog/dialog.css">