patch 8.2.3503: Vim9: using g:pat:cmd is confusingv8.2.3503

Problem:    Vim9: using g:pat:cmd is confusing.
Solution:   Do not recognize g: as the :global command.  Also for s:pat:repl.
            (closes #8982)

1 files changed, 9 insertions, 0 deletions

diff --git a/src/ex_docmd.c b/src/ex_docmd.c
index 08a48305ed..072effdec4 100644
--- a/src/ex_docmd.c
+++ b/src/ex_docmd.c
@@ -3600,6 +3600,15 @@ find_ex_command(
 	    }
 	}
 
+	// "g:", "s:" and "l:" are always assumed to be a variable, thus start
+	// an expression.  A global/substitute/list command needs to use a
+	// longer name.
+	if (vim_strchr((char_u *)"gsl", *p) != NULL && p[1] == ':')
+	{
+	    eap->cmdidx = CMD_eval;
+	    return eap->cmd;
+	}
+
 	// If it is an ID it might be a variable with an operator on the next
 	// line, if the variable exists it can't be an Ex command.
 	if (p > eap->cmd && ends_excmd(*skipwhite(p))