Bram,
I accidentally called append($, 'foobar') and was surprised the string
was actually entered at the top. I did rather expect E116 invalid
arguments for function append.
So here is a patch:
diff --git a/runtime/doc/eval.txt b/runtime/doc/eval.txt
--- a/runtime/doc/eval.txt
+++ b/runtime/doc/eval.txt
@@ -3982,7 +3982,8 @@ libcallnr({libname}, {funcname}, {argume
<
*line()*
line({expr}) The result is a Number, which is the line number of the
file
- position given with {expr}. The accepted positions are:
+ position given with {expr}. Returns -1 in case of an invalid
+ position. The accepted positions are:
. the cursor position
$ the last line in the current buffer
'x position of mark x (if the mark is not set, 0 is
diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -8813,7 +8813,10 @@ f_append(argvars, rettv)
curwin->w_cursor.lnum += added;
}
else
+ {
+ EMSG(N_("E116: Invalid arguments for function append"));
rettv->vval.v_number = 1; /* Failed */
+ }
}
/*
@@ -13662,7 +13665,7 @@ f_line(argvars, rettv)
typval_T *argvars;
typval_T *rettv;
{
- linenr_T lnum = 0;
+ linenr_T lnum = -1;
pos_T *fp;
int fnum;
Best,
Christian
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