标点符号自动匹配,如输入"["自动匹配生成"[]"

[ChasLui]

Is your feature request related to a problem?

无

Describe the solution you'd like

代码实现

/*
   * @desc: 自动匹配标点符号
   */
  const quotes = {
    "'": "'",
    '"': '"',
    "(": ")",
    "（": "）",
    "【": "】",
    "[": "]",
    "《": "》",
    "「": "」",
    "『": "』",
    "{": "}",
    "“": "”",
    "‘": "’",
    "”": "“",
    "’": "‘",
  };

  const quotes_reverse = ["”", "’"];
  const selection = document.getSelection();

	function handleInput(ev) {
    const tagName = ev.target.tagName;
    if (tagName === 'TEXTAREA' || tagName === 'INPUT') {
      inputTextArea.call(ev.target, ev)
    } else {
      input.call(ev.target, ev)
    }
  }

  document.addEventListener('compositionend', handleInput)
  document.addEventListener('input',  handleInput)

  function inputTextArea(ev){
    const quote = quotes[ev.data];
    if (quote && (ev.inputType === "insertText" || ev.type === 'compositionend')) {
      const reverse = quotes_reverse.includes(ev.data);
      if (reverse) {
        this.setSelectionRange(this.selectionStart - 1, this.selectionEnd - 1)
      }
      this.setRangeText(quote)
      if (reverse) {
        this.setSelectionRange(this.selectionStart + 1, this.selectionEnd + 1)
      }
    }
  }

  function input(ev){
    const quote = quotes[ev.data];
    if (quote && ev.inputType === "insertText") {
      const newQuote = document.createTextNode(quote);
      const range = selection.getRangeAt(0);
      const reverse = quotes_reverse.includes(ev.data);
      if (reverse) {
        const { startContainer, startOffset, endContainer, endOffset } = range;
        range.setStart(startContainer, startOffset - 1);
        range.setEnd(endContainer, endOffset - 1);
      }
      range.insertNode(newQuote);
      if (reverse) {
        range.setStartAfter(newQuote);
      } else {
        range.setEndBefore(newQuote);
      }
      range.commonAncestorContainer.normalize();
    }
  }

Additional context

No response

[ChasLui]

Completed at #791