Unexpected indentation after empty element and attribute

[itn3000]

Environment

• win8.1 x64
• vscode: 1.35.1
• redhat.vscode-xml: 0.7.0

Steps to reproduce

1. write empty body element and add attribute, like <A B=""/>
2. enter the end of element

Expected result

same indentation to element like here(_ is cursor)

<A B=""/>
_

Actual result

one indentation is added like here(_ is cursor)

<A B=""/>
    _

Additionally, without attribute, this is not reproduced, and formatting with Shift+Alt+f, indentation will be adjusted.

[angelozerr]

Indeed I can reproduce the problem but I don't don't know what is the problem?

• I tried to disable the vscode-xml extension and problem disappear.
• the lsp4xml doesn't manage this kind of features
• I suspect problem comes from client side in vscode-xml but I don't know where is the problem?

@xorye could you see this issue please when you will have time?

[fbricon]

Must be an issue in the increaseIndentPattern:

vscode-xml/src/extension.ts

Line 221 in 1e46c5d

increaseIndentPattern: /<([-_\.A-Za-z0-9]+)(?=\s|>)\b[^>]*>(?!.*<\/\1>)|<!--(?!.*-->)|\{[^}"']*$/,