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Re: Help with sxml simple parser for the quicklisp importer

From: Ricardo Wurmus
Subject: Re: Help with sxml simple parser for the quicklisp importer
Date: Wed, 23 Jan 2019 15:22:59 +0100
User-agent: mu4e 1.0; emacs 26.1 
Hi,

> (define (get-homepage name)
>   "Get the latest meta release file. From the links in this we extract all
> other information we need."
>   (call-with-temporary-output-file
>    (lambda (temp port)
>      (and (url-fetch (homepage name) temp)
>           (xml->sxml (get-string-all port))))))

Aside: you don’t need to use “get-string-all”; “xml->sxml” can read
directly from a port.

> But it errors out with:
>
>  sxml/simple.scm:143:4: In procedure loop:
> Throw to key `parser-error' with args `(#<input: string 23c45b0>
> "[GIMatch] broken for " (END . head) " while expecting " END link)'.

I fetched the document.  Here’s the part that it barfs on:

--8<---------------cut here---------------start------------->8---
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <title>1am | Quickdocs</title>
  <link rel="stylesheet" type="text/css" href="/css/LigatureSymbols/style.css" 
/>
  
<link rel="stylesheet" type="text/css" media="screen" href="/css/main.css">

  <script type="text/javascript" src="/js/jquery-1.9.1.min.js"></script>
  <script type="text/javascript" src="/js/underscore-min.js"></script>
  <script type="text/javascript" src="/js/quickdocs.js"></script>
</head>
…
--8<---------------cut here---------------end--------------->8---

The second “link” tag opens but is never closed.  This may be valid
HTML, but it is not valid XML, which is what xml->sxml expects.

--
Ricardo
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