Include markdown-it-smartArrow. Toggle it via settings and disable it by default since it might affect HTML comments in markdown

browser/components/MarkdownEditor.js

@@ -283,6 +283,7 @@ class MarkdownEditor extends React.Component {
           indentSize={editorIndentSize}
           scrollPastEnd={config.preview.scrollPastEnd}
           smartQuotes={config.preview.smartQuotes}
+          smartArrows={config.previw.smartArrows}
           breaks={config.preview.breaks}
           sanitize={config.preview.sanitize}
           ref='preview'

browser/components/MarkdownPreview.js

@@ -336,6 +336,7 @@ export default class MarkdownPreview extends React.Component {
     if (prevProps.value !== this.props.value) this.rewriteIframe()
     if (prevProps.smartQuotes !== this.props.smartQuotes ||
         prevProps.sanitize !== this.props.sanitize ||
+        prevProps.smartArrows !== this.props.smartArrows ||
         prevProps.breaks !== this.props.breaks) {
       this.initMarkdown()
       this.rewriteIframe()
@@ -590,5 +591,6 @@ MarkdownPreview.propTypes = {
   showCopyNotification: PropTypes.bool,
   storagePath: PropTypes.string,
   smartQuotes: PropTypes.bool,
+  smartArrows: PropTypes.bool,
   breaks: PropTypes.bool
 }

browser/components/MarkdownSplitEditor.js

@@ -131,6 +131,7 @@ class MarkdownSplitEditor extends React.Component {
           lineNumber={config.preview.lineNumber}
           scrollPastEnd={config.preview.scrollPastEnd}
           smartQuotes={config.preview.smartQuotes}
+          smartArrows={config.preview.smartArrows}
           breaks={config.preview.breaks}
           sanitize={config.preview.sanitize}
           ref='preview'

browser/lib/markdown.js

@@ -2,6 +2,7 @@ import markdownit from 'markdown-it'
 import sanitize from './markdown-it-sanitize-html'
 import emoji from 'markdown-it-emoji'
 import math from '@rokt33r/markdown-it-math'
+import smartArrows from 'markdown-it-smartarrows'
 import _ from 'lodash'
 import ConfigManager from 'browser/main/lib/ConfigManager'
 import katex from 'katex'
@@ -214,6 +215,10 @@ class Markdown {
       return true
     })
 
+    if (config.preview.smartArrows) {
+      this.md.use(smartArrows)
+    }
+
     // Add line number attribute for scrolling
     const originalRender = this.md.renderer.render
     this.md.renderer.render = (tokens, options, env) => {

browser/main/lib/ConfigManager.js

@@ -59,6 +59,7 @@ export const DEFAULT_CONFIG = {
     scrollPastEnd: false,
     smartQuotes: true,
     breaks: true,
+    smartArrows: false,
     sanitize: 'STRICT' // 'STRICT', 'ALLOW_STYLES', 'NONE'
   },
   blog: {

browser/main/modals/PreferencesModal/UiTab.js

@@ -98,6 +98,7 @@ class UiTab extends React.Component {
         scrollPastEnd: this.refs.previewScrollPastEnd.checked,
         smartQuotes: this.refs.previewSmartQuotes.checked,
         breaks: this.refs.previewBreaks.checked,
+        smartArrows: this.refs.previewSmartArrows.checked,
         sanitize: this.refs.previewSanitize.value
       }
     }
@@ -487,6 +488,16 @@ class UiTab extends React.Component {
               {i18n.__('Render newlines in Markdown paragraphs as <br>')}
             </label>
           </div>
+          <div styleName='group-checkBoxSection'>
+            <label>
+              <input onChange={(e) => this.handleUIChange(e)}
+                checked={this.state.config.preview.smartArrows}
+                ref='previewSmartArrows'
+                type='checkbox'
+              />&nbsp;
+              {i18n.__('Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.')}
+            </label>
+          </div>
 
           <div styleName='group-section'>
             <div styleName='group-section-label'>

locales/da.json

@@ -150,5 +150,6 @@
 	"Sanitization": "Sanitization",
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/de.json

@@ -205,5 +205,6 @@
 	"Unnamed": "Unbenannt",
 	"Rename": "Umbenennen",
 	"Folder Name": "Ordnername",
-	"No tags": "Keine Tags"
+	"No tags": "Keine Tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/en.json

@@ -174,5 +174,6 @@
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Render newlines in Markdown paragraphs as <br>": "Render newlines in Markdown paragraphs as <br>",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/es-ES.json

@@ -150,5 +150,6 @@
 	"Sanitization": "Saneamiento",
 	"Only allow secure html tags (recommended)": "Solo permitir etiquetas html seguras (recomendado)",
 	"Allow styles": "Permitir estilos",
-	"Allow dangerous html tags": "Permitir etiquetas html peligrosas"
+	"Allow dangerous html tags": "Permitir etiquetas html peligrosas",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/fa.json

@@ -153,5 +153,6 @@
     "Sanitization": "پاکسازی کردن",
     "Only allow secure html tags (recommended)": "(فقط  تگ های امن اچ تی ام ال مجاز اند.(پیشنهاد میشود",
     "Allow styles": "حالت های مجاز",
-    "Allow dangerous html tags": "تگ های خطرناک اچ‌ تی ام ال مجاز اند"
+    "Allow dangerous html tags": "تگ های خطرناک اچ‌ تی ام ال مجاز اند",
+    "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/fr.json

@@ -150,5 +150,6 @@
 	"Sanitization": "Sanitization",
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/hu.json

@@ -174,5 +174,6 @@
 	"Only allow secure html tags (recommended)": "Csak a biztonságos html tag-ek engedélyezése (ajánlott)",
 	"Render newlines in Markdown paragraphs as <br>": "Az újsor karaktert <br> soremelésként jelenítse meg a Markdown jegyzetekben",
 	"Allow styles": "Stílusok engedélyezése",
-	"Allow dangerous html tags": "Veszélyes html tag-ek engedélyezése"
+	"Allow dangerous html tags": "Veszélyes html tag-ek engedélyezése",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/it.json

@@ -153,5 +153,6 @@
 	"Sanitization": "Bonifica",
 	"Only allow secure html tags (recommended)": "Consenti solo tag HTML sicuri (raccomandato)",
 	"Allow styles": "Consenti stili",
-	"Allow dangerous html tags": "Consenti tag HTML pericolosi"
+	"Allow dangerous html tags": "Consenti tag HTML pericolosi",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }"

locales/ja.json

@@ -150,5 +150,6 @@
 	"Sanitization": "サニタイズ",
 	"Only allow secure html tags (recommended)": "安全なHTMLタグのみ利用を許可する（推奨）",
 	"Allow styles": "スタイルを許可する",
-	"Allow dangerous html tags": "安全でないHTMLタグの利用を許可する"
+	"Allow dangerous html tags": "安全でないHTMLタグの利用を許可する",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/ko.json

@@ -156,5 +156,6 @@
 	"Sanitization": "허용 태그 범위",
 	"Only allow secure html tags (recommended)": "안전한 HTML 태그만 허용 (추천)",
 	"Allow styles": "style 태그, 속성까지 허용",
-	"Allow dangerous html tags": "모든 위험한 태그 허용"
+	"Allow dangerous html tags": "모든 위험한 태그 허용",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/no.json

@@ -149,5 +149,6 @@
 	"Sanitization": "Sanitization",
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/pl.json

@@ -149,5 +149,6 @@
 	"Sanitization": "Sanitization",
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/pt-BR.json

@@ -149,5 +149,6 @@
 	"Sanitization": "Sanitização",
 	"Only allow secure html tags (recommended)": "Permitir apenas tags html seguras (recomendado)",
 	"Allow styles": "Permitir estilos",
-	"Allow dangerous html tags": "Permitir tags html perigosas"
+	"Allow dangerous html tags": "Permitir tags html perigosas",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/pt-PT.json

@@ -149,5 +149,6 @@
 	"Sanitization": "Sanitization",
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/ru.json

@@ -146,5 +146,6 @@
 	"Russian": "Русский",
 	"Editor Rulers": "Editor Rulers",
 	"Enable": "Enable",
-	"Disable": "Disable"
+	"Disable": "Disable",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/sq.json

@@ -148,5 +148,6 @@
 	"Sanitization": "Sanitization",
 	"Only allow secure html tags (recommended)": "Only allow secure html tags (recommended)",
 	"Allow styles": "Allow styles",
-	"Allow dangerous html tags": "Allow dangerous html tags"
+	"Allow dangerous html tags": "Allow dangerous html tags",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/zh-CN.json

@@ -148,5 +148,6 @@
 	"Sanitization": "代码处理",
 	"Only allow secure html tags (recommended)": "只允许安全的html标签(推荐)",
 	"Allow styles": "允许样式",
-	"Allow dangerous html tags": "允许危险的html标签"
+	"Allow dangerous html tags": "允许危险的html标签",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

locales/zh-TW.json

@@ -148,5 +148,6 @@
 	"Sanitization": "過濾 HTML 程式碼",
 	"Only allow secure html tags (recommended)": "只允許安全的 HTML 標籤 (建議)",
 	"Allow styles": "允許樣式",
-	"Allow dangerous html tags": "允許危險的 HTML 標籤"
+	"Allow dangerous html tags": "允許危險的 HTML 標籤",
+	"Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown.": "Convert textual arrows to beautiful signs. ⚠ This will interfere with using HTML comments in your Markdown."
 }

package.json

@@ -79,6 +79,7 @@
     "markdown-it-multimd-table": "^2.0.1",
     "markdown-it-named-headers": "^0.0.4",
     "markdown-it-plantuml": "^0.3.0",
+    "markdown-it-smartarrows": "^1.0.1",
     "md5": "^2.0.0",
     "mdurl": "^1.0.1",
     "moment": "^2.10.3",

yarn.lock

@@ -5430,6 +5430,10 @@ markdown-it-plantuml@^0.3.0:
   version "0.3.2"
   resolved "https://registry.yarnpkg.com/markdown-it-plantuml/-/markdown-it-plantuml-0.3.2.tgz#f93a49bdfc8417b0df3c88700445f53487e57356"
 
+markdown-it-smartarrows@^1.0.1:
+  version "1.0.1"
+  resolved "https://registry.yarnpkg.com/markdown-it-smartarrows/-/markdown-it-smartarrows-1.0.1.tgz#b570e9c0ff9812e0db6ace19afa5ba12b64bb9a7"
+
 markdown-it@^5.0.3:
   version "5.1.0"
   resolved "https://registry.yarnpkg.com/markdown-it/-/markdown-it-5.1.0.tgz#25286b8465bac496f3f1b77eed544643e9bd718d"