refactor

1. first comment code
2. move constant to another files

Signed-off-by: Raccoon <raccoon@hackmd.io>

public/js/editorPlugins/constants.js

@@ -0,0 +1,107 @@
+import hljs from 'highlight.js'
+
+export const supportContainers = ['success', 'info', 'warning', 'danger', 'spoiler']
+export const supportCodeModes = ['javascript', 'typescript', 'jsx', 'htmlmixed', 'htmlembedded', 'css', 'xml', 'clike', 'clojure', 'ruby', 'python', 'shell', 'php', 'sql', 'haskell', 'coffeescript', 'yaml', 'pug', 'lua', 'cmake', 'nginx', 'perl', 'sass', 'r', 'dockerfile', 'tiddlywiki', 'mediawiki', 'go', 'gherkin'].concat(hljs.listLanguages())
+export const supportCharts = ['sequence', 'flow', 'graphviz', 'mermaid', 'abc', 'plantuml', 'vega', 'geo']
+export const supportHeaders = [
+  {
+    text: '# h1',
+    search: '#'
+  },
+  {
+    text: '## h2',
+    search: '##'
+  },
+  {
+    text: '### h3',
+    search: '###'
+  },
+  {
+    text: '#### h4',
+    search: '####'
+  },
+  {
+    text: '##### h5',
+    search: '#####'
+  },
+  {
+    text: '###### h6',
+    search: '######'
+  },
+  {
+    text: '###### tags: `example`',
+    search: '###### tags:'
+  }
+]
+export const supportReferrals = [
+  {
+    text: '[reference link]',
+    search: '[]'
+  },
+  {
+    text: '[reference]: https:// "title"',
+    search: '[]:'
+  },
+  {
+    text: '[^footnote link]',
+    search: '[^]'
+  },
+  {
+    text: '[^footnote reference]: https:// "title"',
+    search: '[^]:'
+  },
+  {
+    text: '^[inline footnote]',
+    search: '^[]'
+  },
+  {
+    text: '[link text][reference]',
+    search: '[][]'
+  },
+  {
+    text: '[link text](https:// "title")',
+    search: '[]()'
+  },
+  {
+    text: '![image alt][reference]',
+    search: '![][]'
+  },
+  {
+    text: '![image alt](https:// "title")',
+    search: '![]()'
+  },
+  {
+    text: '![image alt](https:// "title" =WidthxHeight)',
+    search: '![]()'
+  },
+  {
+    text: '[TOC]',
+    search: '[]'
+  }
+]
+export const supportExternals = [
+  {
+    text: '{%youtube youtubeid %}',
+    search: 'youtube'
+  },
+  {
+    text: '{%vimeo vimeoid %}',
+    search: 'vimeo'
+  },
+  {
+    text: '{%gist gistid %}',
+    search: 'gist'
+  },
+  {
+    text: '{%slideshare slideshareid %}',
+    search: 'slideshare'
+  },
+  {
+    text: '{%speakerdeck speakerdeckid %}',
+    search: 'speakerdeck'
+  },
+  {
+    text: '{%pdf pdfurl %}',
+    search: 'pdf'
+  }
+]