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unclosed-tag-finder

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unclosed-tag-finder

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

  • 0.0.3
  • npm
  • Socket score

Version published
Weekly downloads
72
increased by94.59%
Maintainers
1
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Unclosed Tag Finder

A library that finds unclosed html5 tags that are normally optional. These optional tags could be:

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

Install

user$ npm install unclosed-tag-finder

Usage (in short)

user$ npm install unclosed-tag-finder
user$ vi listUnclosedTags.js
#!/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
user$ ./listUnclosedTags.js test.html 
The following tags don't seem to be closed
line 7: <p>
line 8: <p>
line 10: <li>

Full example with html5 file

Create a W3C 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>

Install a W3C checker and check the file (the w3c checker above will accept the unclosed tags):

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

The page is valid. Now check the file with the listUnclosedTags.js script (see Usage):

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

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

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Package last updated on 19 Jun 2017

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