+ support to extendes autoclose simbols (#122)

* + support to extendes autoclose simbols

* + Documentation support autoclose

Author: Humberto Parra Vargas

README.md

@@ -54,12 +54,19 @@ Third argument to `CodeJar` is options:
   - `addClosing: boolean` automatically adds closing brackets, quotes. Default `true`.
   - `history` records history. Default `true`.
   - `window` window object. Default: `window`.
+  - `autoclose` object
+    - `open string` characters that triggers the autoclose function 
+    - `close string` characters that correspond to the opening ones and close the object.
 
 
 ```js
 const options = {
   tab: ' '.repeat(4), // default is '\t'
   indentOn: /[(\[]$/, // default is /{$/
+  autoclose: { 
+    open: `([{*`, // default is `([{'"`
+    close: `)]}*` // default is `)]}'"`
+  }
 }
 
 const jar = CodeJar(editor, highlight, options)

codejar.ts

@@ -10,6 +10,10 @@ type Options = {
   addClosing: boolean
   history: boolean
   window: typeof window
+  autoclose: {
+    open: string;
+    close: string;
+  }
 }
 
 type HistoryRecord = {
@@ -36,6 +40,10 @@ export function CodeJar(editor: HTMLElement, highlight: (e: HTMLElement, pos?: P
     addClosing: true,
     history: true,
     window: globalWindow,
+    autoclose: { 
+      open: `([{'"`, 
+      close: `)]}'"`
+    },
     ...opt,
   }
 
@@ -349,13 +357,13 @@ export function CodeJar(editor: HTMLElement, highlight: (e: HTMLElement, pos?: P
   }
 
   function handleSelfClosingCharacters(event: KeyboardEvent) {
-    const open = `([{'"`
-    const close = `)]}'"`
+    const open = options.autoclose.open;
+    const close = options.autoclose.close;
     if (open.includes(event.key)) {
       preventDefault(event)
       const pos = save()
       const wrapText = pos.start == pos.end ? '' : getSelection().toString()
-      const text = event.key + wrapText + close[open.indexOf(event.key)]
+      const text = event.key + wrapText + (close[open.indexOf(event.key)] ?? "")
       insert(text)
       pos.start++
       pos.end++