Added long single line string renders badly

[ungb]

Prerequisites

• Put an X between the brackets on this line if you have done all of the following:
  • Reproduced the problem in Safe Mode: http://flight-manual.atom.io/hacking-atom/sections/debugging/#using-safe-mode
  • Followed all applicable steps in the debugging guide: http://flight-manual.atom.io/hacking-atom/sections/debugging/
  • Checked the FAQs on the message board for common solutions: https://discuss.atom.io/c/faq
  • Checked that your issue isn't already filed: https://github.com/issues?utf8=✓&q=is%3Aissue+user%3Aatom
  • Checked that there is not already an Atom package that provides the described functionality: https://atom.io/packages

Description

Loading a javascript file that has a single long line renders badly.

Steps to Reproduce

1. Open atom with a new js file by running: atom test.js
2. in test.js paste the following:

var header = 'bearer  zzzzzzzzzzzzTzzzzz0zXzzzzzzz1zzzzzzzzzzzzzSUzz1Nzz9.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.zzzzznzzzxz_zXtzz7zzzzz3zzzz8Xzszz6znzzSzzzzzuzuzzz_xNzzz2zzzz3S2zzSzzzz7z4z8zzzzz1z0zTzzzSzz3z9zzzTwXzzz7zzzzz853Szuzz2zXzzzzx40nzzuzUzz1zXnzz-zzztwzzzz7TzTnzUt17zzz928529zzz7nzXzzz5nzzzXzzzzz2zzz3zzzzzX0Z2zzzzzzTzzzzzzzz0-WzzzzzSszzXzzt6-uzzzzz698zw9zWzzUzzznzzz7zzt0ztzxxuzzNzz3Uzz8ztSuz1zzzz172N8t9-TzN3zz5zzzZz8WzXz2zzzzzUznz56zzzWzu2zz5zz2zzzzzTuznznzzzUzzzxzzntz6ztT6t6zz20zzuz4zzz2Nzxzzz65_UzUzzzzzzz01tzzXz78zzz0u4zzzWzzWtt3zzz7z6zzzX8Wzwzzzzzz6z92zzNnzzu8u1zzzzXz3zzzzS-zxzzzZzzzSzzz-z5zzTzz0zWU9zS9zzzzu852Utzsznzzz0zzzn5zz-22z3z9zzzzxzWz6zZTzzzz0z4zzzUzNt0zSzt__zTzzzzzzzznzz4Xz82zzzznznz8zzzznT1_zZt1_Wzzz7zzTz4zszzzuzzznzzzzzT9zZz9zz00zz9zzzWtZzt_zzzzW8zzzs4wz6UzUzzz7s'

Expected behavior: Renders the file looking like valid string and js(similar to what other editors render)

This is what I see in other editors(side by side comparison):

Actual behavior: [What actually happens]

Reproduces how often: [What percentage of the time does it reproduce?]
100%

Versions

Atom    : 1.25.1
Electron: 1.7.11
Chrome  : 58.0.3029.110
Node    : 7.9.0

[mikemcbride]

I think this is a known limitation of the current parser. The same thing happens when you open a minified JS file - since it's one long line, the parsing breaks at a certain character limit.

Have you tried enabling the tree sitter parser? It would fix issues like this.