[Bug 44338] New: cmd: Brackets are no deliminiter in the condition part of the if command.

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=44338

            Bug ID: 44338
           Summary: cmd: Brackets are no deliminiter in the condition part
                    of the if command.
           Product: Wine
           Version: 3.0-rc5
          Hardware: x86-64
                OS: Linux
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: cmd
          Assignee: wine-bugs at winehq.org
          Reporter: bernhardu at mailbox.org
      Distribution: ---

Created attachment 60213
  --> https://bugs.winehq.org/attachment.cgi?id=60213
cmd: Change parsing of the if command to avoid parsing the operators.

Found while trying to look into #44236.
There a batch script is executed that contains lines as this:
---
if (%1)==(p) start /W  " "  "%SFDIR%WSFplot" wr2300.t35 3
---

This returns an error like this:
---
Syntax error
Can't recognize 'p' as an internal or external command, or batch script.
---

It looks like native does handle the brackets differently when contained
inside the condition part of the if command.

Attached is a patch that tries to skip the parsing in WCMD_ReadAndParseLine
of that part. Therefore it moves most of the content of WCMD_if into a
helper and calls that to estimate how long the condition part is.

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