No scope defined for bold/italic definition characters

[sdalmonte]

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

There’s no scope defined for the underscores/asterisks used to mark text as italic or bold. This makes it impossible to style these characters independently of the text they contain.

Steps to Reproduce

1. Create a GFM document.
2. Mark text as _italic_, *italic*, __bold__, or **bold**.

Expected behavior:

<span class="syntax--markup syntax--italic syntax--gfm">
  <span class="syntax--punctuation syntax--definition syntax--begin syntax--gfm">_</span>
  italic
  <span class="syntax--punctuation syntax--definition syntax--end syntax--gfm">_</span>
</span>
<span class="syntax--markup syntax--italic syntax--gfm">
  <span class="syntax--punctuation syntax--definition syntax--begin syntax--gfm">*</span>
  italic
  <span class="syntax--punctuation syntax--definition syntax--end syntax--gfm">*</span>
</span>
<span class="syntax--markup syntax--bold syntax--gfm">
  <span class="syntax--punctuation syntax--definition syntax--begin syntax--gfm">__</span>
  bold
  <span class="syntax--punctuation syntax--definition syntax--end syntax--gfm">__</span>
</span>
<span class="syntax--markup syntax--bold syntax--gfm">
  <span class="syntax--punctuation syntax--definition syntax--begin syntax--gfm">**</span>
  bold
  <span class="syntax--punctuation syntax--definition syntax--end syntax--gfm">**</span>
</span>

Actual behavior:

<span class="syntax--markup syntax--italic syntax--gfm">_italic_</span>
<span class="syntax--markup syntax--italic syntax--gfm">*italic*</span>
<span class="syntax--markup syntax--bold syntax--gfm">__bold__</span>
<span class="syntax--markup syntax--bold syntax--gfm">**bold**</span>

Reproduces how often:
100% of the time

Versions

macOS 10.12.6
Atom    : 1.32.0
Electron: 2.0.9
Chrome  : 61.0.3163.100
Node    : 8.9.3
apm  2.1.2
npm  6.2.0
node 8.9.3 x64
atom 1.32.0
python 2.7.10
git 2.14.3

Additional Information

See also #101.