mu-www

mu-www

Utilities to generate and clean WWW-releated content. Written as a Crystal shard.

da99 users

  mu-www install # installs libxml2-dev, tidy5

Usage

  require "mu-www"

  Mu_WWW_Attr.clean("input", {"type"=>"hidden", "value"=>"my val"})
  Mu_WWW_Attr.clean("meta", {"name"=>"keywords", "content"=>" <my content> "})
  Mu_WWW_HTML.escape("my <html>")
  Mu_WWW_URI.clean("http://my.uri")

  class My_HTML
    include Mu_WWW_HTML

    def p(content : String)
      tag("p", content)
    end

    def div(attrs)
      tag("div", attrs) do
        yield
      end
    end

    def tag_attr(tag, name, val, attrs)
      case
      when tag == "div" && name == "css"
        attrs.delete "css"
        attrs["class"] = val
        attrs
      else
        super
      end
    end
  end

  My_HTML.render do
    html {
      head {
        title "My Title"
      }
      body {
        p "My text."
        div({"css"=>"my_class"}) do
          p "my text"
        end
      }
    }
  end

Linux

Install libxml2-dev Install libxml2-devel (for Void Linux)

Mu_WWW_URI.clean

I use this shard to sanitize uri/urls for src and href html attributes.

However, if you know of another uri/url sanitization shard to be used for src and href attributes, please let me know in the "issues" section so i can tell others about it.

you don't want to use this shard because it's too specific for my needs. it's very strict and only allows http, https, ftp, sftp. no mailto or other schemes. so it's basically useless for most people unless they share my views on paranoid security.

specs for this shard was inspired by:

Repository

mu-www

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  • over 7 years ago
  • April 11, 2017
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Fri, 24 Oct 2025 15:02:10 GMT

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Crystal 89.99% Shell 9.43% HTML 0.37% CSS 0.21%