Update specs and README, bump version

Author: digitalmoksha

README.md

@@ -55,6 +55,7 @@ redcarpet 3.4.0             0.0065
 - [Install](#install)
 - [Usage examples](#usage-examples)
 - [Plugins](#plugins)
+- [Upgrading](#upgrading)
 - [References / Thanks](#references--thanks)
 - [License](#license)
 
@@ -297,6 +298,44 @@ other implementations.
 
 -->
 
+## Upgrading
+
+Upgrading to `8.4.1.2` could cause some small breakage if you are using any custom plugins.  The [motion-markdown-it-plugins](https://github.com/digitalmoksha/motion-markdown-it-plugins) plugins have already been upgraded.
+
+#### charCodeAt
+
+Make sure you have
+
+```ruby
+include MarkdownIt::Common::Utils
+```
+
+at the top of your plugin file.  Then change any references to `charCodeAt`.  For example,
+
+```ruby
+state.src.charCodeAt(pos)
+```
+
+would become
+
+```ruby
+charCodeAt(state.src, pos)
+```
+
+#### slice_to_end
+
+`slice_to_end` has been removed.  Change references like this
+
+```ruby
+state.src.slice_to_end(pos)
+```
+
+to
+
+```ruby
+state.src[pos..-1]
+```
+
 ## References / Thanks
 
 Thanks to the authors of the original implementation in Javascript, [markdown-it](https://github.com/markdown-it/markdown-it):

lib/motion-markdown-it.rb

@@ -24,7 +24,6 @@
   require 'motion-markdown-it/common/utils'
   require 'motion-markdown-it/common/html_blocks'
   require 'motion-markdown-it/common/html_re'
-  require 'motion-markdown-it/common/string'
   require 'motion-markdown-it/common/simpleidn'
   require 'motion-markdown-it/helpers/parse_link_destination'
   require 'motion-markdown-it/helpers/parse_link_label'

lib/motion-markdown-it/rules_block/html_block.rb

@@ -3,6 +3,7 @@
 module MarkdownIt
   module RulesBlock
     class HtmlBlock
+      extend Common::Utils
 
       HTML_OPEN_CLOSE_TAG_RE = MarkdownIt::Common::HtmlRe::HTML_OPEN_CLOSE_TAG_RE
 

lib/motion-markdown-it/rules_block/lheading.rb

@@ -3,6 +3,7 @@
 module MarkdownIt
   module RulesBlock
     class Lheading
+      extend Common::Utils
 
       #------------------------------------------------------------------------------
       def self.lheading(state, startLine, endLine, silent = true)

lib/motion-markdown-it/rules_inline/autolink.rb

@@ -3,6 +3,7 @@
 module MarkdownIt
   module RulesInline
     class Autolink
+      extend Common::Utils
 
       EMAIL_RE    = /^<([a-zA-Z0-9.!#$\%&'*+\/=?^_`{|}~-]+@[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?(?:\.[a-zA-Z0-9](?:[a-zA-Z0-9-]{0,61}[a-zA-Z0-9])?)*)>/
       AUTOLINK_RE = /^<([a-zA-Z][a-zA-Z0-9+.\-]{1,31}):([^<>\x00-\x20]*)>/

lib/motion-markdown-it/rules_inline/backticks.rb

@@ -3,13 +3,14 @@
 module MarkdownIt
   module RulesInline
     class Backticks
+      extend Common::Utils
 
       #------------------------------------------------------------------------------
       def self.backtick(state, silent)
         pos = state.pos
         ch = charCodeAt(state.src, pos)
 
-        return false if (ch != 0x60)  #  ` 
+        return false if (ch != 0x60)  #  `
 
         start = pos
         pos  += 1

lib/motion-markdown-it/rules_inline/html_inline.rb

@@ -1,11 +1,11 @@
 # Process html tags
 #------------------------------------------------------------------------------
 module MarkdownIt
-
   module RulesInline
     class HtmlInline
+      extend Common::Utils
       include MarkdownIt::Common::HtmlRe
-      
+
       #------------------------------------------------------------------------------
       def self.isLetter(ch)
         lc = ch | 0x20    # to lower case
@@ -20,7 +20,7 @@ def self.html_inline(state, silent)
 
         # Check start
         max = state.posMax
-        if (charCodeAt(state.src, pos) != 0x3C || pos + 2 >= max)  #  < 
+        if (charCodeAt(state.src, pos) != 0x3C || pos + 2 >= max)  #  <
           return false
         end
 

lib/motion-markdown-it/rules_inline/text.rb

@@ -4,6 +4,7 @@
 module MarkdownIt
   module RulesInline
     class Text
+      extend Common::Utils
 
       # Rule to skip pure text
       # '{}$%@~+=:' reserved for extentions

lib/motion-markdown-it/version.rb

@@ -1,5 +1,5 @@
 module MotionMarkdownIt
 
-  VERSION = '8.4.1.1'
+  VERSION = '8.4.1.2'
 
 end