beautifier/js-beautify

& TO & amp;

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#880 opened on Feb 20, 2016

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 (2 comments) (0 reactions) (0 assignees)JavaScript (8,342 stars) (1,460 forks)batch import
good first issuetype: enhancement

Description

For example if you try to beautify this line:

<script>
for(i=0;i<A.sampleRate/2;i++)cB[i]=(((i*13+(((i>>3)&amp;1221)+133)*(i>>2))&amp;255)/128-.4)/(i*.00002+1)*(Math.cos(i*i*.0000003+i*0.40321+j)%0.412)*12;
</script>

The &amp; will turn into & amp;.

btw. this was taken from @notch http://doodle.notch.net/unmandelboxing/withsound.html

Contributor guide

Tech stack
javascripthtml
Domain
tooling
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-2 days
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
mostly clear
Prerequisites
JavaScriptHTML entity handlingbasic beautifier internals
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate the HTML beautifier module in js beautify to understand how it processes script tags and HTML entities. Focus on the logic that replaces HTML entities like &amp; and ensure they are not being incorrectly split into & amp;. Check for any existing tests related to entity handling in mixed HTML/JS content and consider creating a minimal reproduction case.