unclosed-tag-finder

A library to find unclosed html5 tags, that are normally optional.

0.0.10
npm

Version published: 7 years ago

Weekly downloads: 72; increased by94.59%

Maintainers: 1

Weekly downloads

Created: 7 years ago

Source

Unclosed Tag Finder

A library that finds unclosed html5 tags that are normally optional (via W3C check). These optional tags could be:

html
head
body
p
dt
dd
li
option
thead
th
tbody
tr
td
tfoot
colgroup

Installation

user$ npm install unclosed-tag-finder -g

Usage (the command line version)

Create a valid html5 file (but with some unclosed tags)

user$ vi w3cValid.html

<!DOCTYPE html>
<html>
    <head>
        <title>test</title>
    </head>
    <body>
        <p>123
        <p>456
        <ul>
            <li>123
        </ul>
    </body>
</html>

Check the html5 file with a w3c checker of your choice

user$ npm install html-validator-cli -g
user$ html-validator --file=w3cValid.html 
Page is valid

user$ xmllint --html --noout w3cValid.html

The page is valid.

Find unclosed tags within this valid html5 file

user$ unclosed-tag-finder w3cValid.html                                                                  
The following tags don't seem to be closed
line 7: <p>
line 8: <p>
line 10: <li>

Although the html file is valid, we found some unclosed html5 tags.

Use this library inside your own scripts

#!/usr/bin/env node

/* load some libraries */
var unclosedTagFinder = require('unclosed-tag-finder');
var fs = require('fs');

var finder = new unclosedTagFinder.builder();

/* check command line arguments */
if (process.argv.length < 3) {
    console.error('No file to validate was given. Abort..');
    process.exit(1);
}

/* read given file */
fs.readFile(process.argv[2], 'utf-8', function(err, html) {                                                                                                                                               
    if (err) {
        console.log(err);
        process.exit(1);
        return;
    }   

    var unclosedTags = finder.getUnclosedTags(html);

    if (unclosedTags.length == 0) {
        console.info('Congratulations! No unclosed tags.');
    } else {
        if (unclosedTags.length == 1) {
            console.info('The following tag doesn\'t seem to be closed');
        } else {
            console.info('The following tags don\'t seem to be closed');
        }   

        for (var i = 0; i < unclosedTags.length; i++) {
            console.info('line ' + unclosedTags[i].line + ': ' + unclosedTags[i].full);
        }   
    }
});

user$ chmod 775 listUnclosedTags.js

Now check the file with the listUnclosedTags.js script:

user$ ./listUnclosedTags.js w3cValid.html
The following tags don't seem to be closed
line 7: <p>
line 8: <p>
line 10: <li>

More informations and source code

More informations and the source code you will find at GitHub

License

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Package last updated on 19 Jun 2017

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