diff --git a/src/userfunc.c b/src/userfunc.c
index 7ad3388..155c4ff 100644
--- a/src/userfunc.c
+++ b/src/userfunc.c
@@ -1077,12 +1077,23 @@
 			    || checkforcmd(&p, "const", 5))))
 		{
 		    p = skipwhite(arg + 3);
-		    if (STRNCMP(p, "trim", 4) == 0)
+		    while (TRUE)
 		    {
-			// Ignore leading white space.
-			p = skipwhite(p + 4);
-			heredoc_trimmed = vim_strnsave(theline,
-						 skipwhite(theline) - theline);
+			if (STRNCMP(p, "trim", 4) == 0)
+			{
+			    // Ignore leading white space.
+			    p = skipwhite(p + 4);
+			    heredoc_trimmed = vim_strnsave(theline,
+				    skipwhite(theline) - theline);
+			    continue;
+			}
+			if (STRNCMP(p, "eval", 4) == 0)
+			{
+			    // Ignore leading white space.
+			    p = skipwhite(p + 4);
+			    continue;
+			}
+			break;
 		    }
 		    skip_until = vim_strnsave(p, skiptowhite(p) - p);
 		    getline_options = GETLINE_NONE;