读取OCaml中的URL的HTML内容 [英] Reading HTML contents of a URL in OCaml

问题描述

我想编写一个OCaml函数，它接受一个URL并返回一个由该位置HTML文件内容组成的字符串。任何想法？

非常感谢！

Best，
Surikator。

解决方案

我已经使用ocurl和nethtml完成了这两项操作

ocurl 阅读URL的内容（这里属性的吨数是最小的），

  let string_of_uri uri = 
尝试让连接= Curl.init（）和write_buff = Buffer.create 1763 in 
 Curl。 set_write函数连接
（fun x  - > Buffer.add_string write_buff x; String.length x）; 
 Curl.set_url连接uri; 
 Curl.perform连接; 
 Curl.global_cleanup（）; 
 Buffer.contents write_buff; 
加上_  - > raise（IO_ERROR uri）
  

并从 nethtml ; （您可能需要为 Nethtml.parse 设置一个DTD）

$ p $ let parse_html_string uri =
let ch = new Netchannels.input_string（string_of_uri uri）in
let docs = Nethtml.parse？return_pis：（Some false）ch
ch＃close_in（）;
docs


干杯！

I would like to write an OCaml function which takes a URL and returns a string made up of the contents of the HTML file at that location. Any ideas?

Thanks a lot!

Best, Surikator.

解决方案

I've done both of those things using ocurl and nethtml

ocurl to read the contents of the URL (tons of properties here; this is the minimum),

let string_of_uri uri = 
    try let connection = Curl.init () and write_buff = Buffer.create 1763 in
        Curl.set_writefunction connection
                (fun x -> Buffer.add_string write_buff x; String.length x);
        Curl.set_url connection uri;
        Curl.perform connection;
        Curl.global_cleanup ();
        Buffer.contents write_buff;
    with _ -> raise (IO_ERROR uri)

and from nethtml; (you might need to set up a DTD for Nethtml.parse)

let parse_html_string uri = 
    let ch = new Netchannels.input_string (string_of_uri uri) in
    let docs = Nethtml.parse ?return_pis:(Some false) ch in
    ch # close_in ();
    docs

Cheers!

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