【Codewars python 4kyu】: Breadcrumb Generator

小菜鸟快飞

于 2019-09-07 11:12:23 发布

阅读量500

点赞数

分类专栏： Codewars 文章标签： codewars python Breadcrumb Generator 4kyu

本文链接：https://blog.youkuaiyun.com/qq_36362028/article/details/100547787

版权

该博客介绍了如何为 Codewars 的 4kyu 题目 'Breadcrumb Generator' 编写一个面包屑导航函数。函数接收 URL，将根路径标记为 'Home'，并构建一个链接到相应路径的面包屑菜单。文章详细说明了处理 URL、元素截断、文件扩展名处理和特殊情况的规则，并提供了多个示例。最后，博主分享了代码实现。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

问题描述:

As breadcrumb menùs are quite popular today, I won't digress much on explaining them, leaving the wiki link to do all the dirty work in my place.

What might not be so trivial is instead to get a decent breadcrumb from your current url. For this kata, your purpose is to create a function that takes a url, strips the first part (labelling it always HOME) and then builds it making each element but the last a <a> element linking to the relevant path; last has to be a <span> element getting the active class.

All elements need to be turned to uppercase and separated by a separator, given as the second parameter of the function; the last element can terminate in some common extension like .html, .htm, .php or .asp; if the name of the last element is index.something, you treat it as if it wasn't there, sending users automatically to the upper level folder.

A few examples can be more helpful than thousands of words of explanation, so here you have them:

generate_bc("mysite.com/pictures/holidays.html", " : ") == '<a href="/">HOME</a> : <a href="/pictures/">PICTURES</a> : <span class="active">HOLIDAYS</span>'
generate_bc("www.codewars.c

最低0.47元/天解锁文章