Version info

$ atom --version
Atom    : 1.38.2
Electron: 2.0.18
Chrome  : 61.0.3163.100
Node    : 8.9.3
$ apm list | grep lint
$

(Yeah, I have no package containing lint in its name installed - should I?)

Issue

When the word that is supposed to be highlighted appears twice with only a single character in between, only one of them is highlighted:

Test file:

00000000 00000000 00000000
00000000.00000000.00000000
00000000-00000000-00000000

00000000  00000000  00000000
00000000..00000000..00000000
00000000--00000000--00000000

I often sift through hexdumps, so I definitely have a use case for this.

From glancing through the code, it would seem to me that changing nonWordCharacters in search-model.js to be embedded in lookbehind and lookahead groups rather than non-capturing groups might fix the issue, but I neither have a build setup to test this, nor did I want to create a pull request without actually understanding the codebase.