如何将字符串拆分为相应的对象? [英] How to split a string into corresponding objects?

问题描述

为此:

const MATCH_NAME = /\s+([a-z]+)\s+/i;

function parseDates(input) {
  const parts = input.split(MATCH_NAME);
  const result = {
    dates: [],
    year: null
  };

  while (parts.length > 2) {
    const [days, month, suffix] = parts.splice(0, 2);
    result.dates.push({
      month,
      days: days.split(/\D+/),
      suffix
    });
  }

  result.year = parts[0];
  return result;
}

console.log(parseDates('12-5 November 17 May 1954 CE'));
console.log(parseDates('1 January 1976 CE'));
console.log(parseDates('12 22 March 1965'));

year obj的结尾类似于1976 CE，而CE应该在suffix中.

The year obj ends up like 1976 CE while CE should be in the suffix.

试图到达:

Month: November
  Days: 12, 5
Month: May
  Days: 17
Year: 1954
Suffix: CE

jsFiddle here

推荐答案

据我了解，您的模式是这样的:

In my understanding, your pattern is something like this:

• 您有一个用空格分隔的值列表.
• 值可以是数字或字母.
• 如果是数字，
  • 如果为<= 31，则为一天，应将其推入天数组.
  • 如果日期超过1，则可以用连字符或空格分隔.
  • 否则是一年.
  • You have a list of values separated by spaces.
  • Values can be numeric or alphabets.
  • If Numeric,
    • If <= 31, its a day and should be pushed to days array.
    • Days can be separated by hyphens or space, if more than 1.
    • Else it is year.
    • 如果后跟年份，并且长度小于3(后缀为2位数字，并且您可以使用不带日期值的Date(例如:"2007年11月"))
    • 否则是月.

    注意:如果我的理解是正确的，那么以下解决方案将为您提供帮助.如果没有，请分享不一致之处.

    Note: If my understanding is correct, then following solution will help you. If not, please share inconsistencies.

    function parseDates(input) {
      var parts = processHTMLString(input).split(/[-–,\/\s]/g);
      var result = [];
      var numRegex = /\d+/;
      var final = parts.reduce(function(temp, c) {
        if (numRegex.test(c)) {
          let num = parseInt(c);
          if (temp.year || (temp.month && num < 31)) {
            result.push(temp);
            temp = {};
          }
          temp.days = temp.days || []
          if (c.indexOf("-") >= 0) {
            temp.days = temp.days.concat(c.split("-"));
          } else if (num > 31)
            temp.year = c;
          else
            temp.days.push(c)
        } else if (c.length < 3 && temp.year) {
          temp.suffix = c
        } else {
          temp.month = c;
        }
        return temp;
      }, {});
      result.push(final);
      return result;
    }
    
    function processHTMLString(str) {
      var div = document.createElement("div");
      div.innerHTML = str;
      // This will process `&nbsp;` and any other such value.
      return div.textContent;
    }
    
    console.log(parseDates('12-5 November 2007 ce 17 May 1954 Ce'));
    console.log(parseDates('1 January 1976 CE'));
    console.log(parseDates('12 22 March 1965'));

    这篇关于如何将字符串拆分为相应的对象?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！