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traceback.js

v0.3.0

Published

代码回溯。指定文本的位置,格式化显示选定区域

Downloads

6

Readme

traceback.js

代码回溯。指定一段文本的位置,格式化显示

预览图

使用

安装:

npm install traceback.js --save

可使用的 API 有:initrenderrenderToString

init

初始化配置并渲染源文本:

import TracebackJS from 'traceback.js';

TracebackJS.init('.traceback-js', { highlightRow: 5 });
  1. 第一个参数 selectors 为 css 选择符
  2. 第二个参数 opts 为配置对象

配置对象 opts:

// 下面的值均为默认值
{
    highlightRow: 1, // 高亮行
    start: 1, // 起始行号
    displayRows: '-5+5', // 展示规则。可以是 -1|string|object
    separator: '\n', // 分隔符。全部源文本使用它分隔成一行行
}

displayRows 展示规则:

  • -1 展示全部行
  • '-10+8' 展示前 10 行、后 8 行
  • { upward, downward } 展示前 upward 行、后 downward 行

render (底层 API)

根据源文本,返回渲染 dom:

fetch('sometext.txt')
    .then(res => res.text())
    .then((data) => {
        const $dom = TracebackJS.render(data, opts);

        insert($dom); // 可供操作的 dom
    });

renderToString

返回 html 字符串而不是添加到 dom 中。

TracebackJS.renderToString(data, { highlightRow: 4 }); // html 字符串
// '<div class="traceback-js">...</div>'
  1. 第一个参数 rawInput 为源文本
  2. 第二个参数 opts 为配置对象