[BUG] Formatting operation removes spaces around operator, making code invalid

[galtm]

Describe the bug
When I use XQuery > Format code on a certain function, some spaces get removed such that the code is no longer valid. The problem might be related to a code comment near the code that becomes invalid.

Expected behavior
The code should be formatted differently but should still produce the same behavior.

To Reproduce

1. Enter this code in eXide:

xquery version "3.1";

declare function local:myfcn(
  $arg as xs:integer
  ) as xs:string* {
  
  (:
    Multiple-line comment that is
    not in eXist-db style
  :)
  if ($arg gt 0)
  then 'positive'
  else 'nonpositive'
};

local:myfcn(1)

2. Select all the text (or only the function declaration)
3. Select XQuery > Format code

The function declaration now looks like this, with no spaces around the gt operator:

declare function local:myfcn($arg as xs:integer)
as xs:string*
{
    (:
     : Multiple-line comment that is
     : not in eXist-db style
     :)if($arggt0)then'positive'else'nonpositive'};

Screenshot

Context (please always complete the following information):

• OS: Windows 10
• eXist-db Version: 6.2.0
• Java Version:

openjdk version "11.0.16" 2022-07-19 LTS
OpenJDK Runtime Environment Microsoft-38106 (build 11.0.16+8-LTS)
OpenJDK 64-Bit Server VM Microsoft-38106 (build 11.0.16+8-LTS, mixed mode)

• App Version: 3.5.0

Additional context

• How is eXist-db installed? I'm a new eXist-db user and I followed instructions at https://exist-db.org/exist/apps/doc/basic-installation .
• Any custom changes in e.g. conf.xml? Not that I know of.

[joewiz]

@galtm Thank you for the report! This sounds like a bug indeed. It is likely in the upstream project that @wolfgangmm drew on when he contributed the feature. That project, xqlint, has since changed its architecture in a way that makes it incompatible with eXide. Thus, I am not hopeful that a fix will be easy. (I, at least, lack the javascript skills that would be necessary to investigate the bug.) If we confirm the problem is irreparable, the solution may be to remove the feature, lest it cause damage to people's code.

[galtm]

@joewiz, Thanks for looking at this so quickly and for setting my expectations about the feasibility of a fix.