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api: nvim_command_output: direct impl

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This commit is contained in:
Justin M. Keyes
2018-01-09 10:36:25 +01:00
parent c095f83116
commit 5055d4a755
4 changed files with 99 additions and 34 deletions
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46
src/nvim/api/vim.c
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@@ -219,28 +219,38 @@ String nvim_replace_termcodes(String str, Boolean from_part, Boolean do_lt,
String nvim_command_output(String command, Error *err)
FUNC_API_SINCE(1)
{
Array args = ARRAY_DICT_INIT;
ADD(args, STRING_OBJ(copy_string(command)));
ADD(args, STRING_OBJ(cstr_to_string("silent")));
String fn = cstr_to_string("execute");
Object rv = nvim_call_function(fn, args, err);
api_free_string(fn);
api_free_array(args);
const int save_msg_silent = msg_silent;
garray_T *const save_capture_ga = capture_ga;
garray_T capture_local;
ga_init(&capture_local, 1, 80);
try_start();
msg_silent++;
capture_ga = &capture_local;
do_cmdline_cmd(command.data);
capture_ga = save_capture_ga;
msg_silent = save_msg_silent;
try_end(err);
if (ERROR_SET(err)) {
assert(rv.type == kObjectTypeNil);
return (String)STRING_INIT;
goto theend;
}
assert(rv.type == kObjectTypeString);
// execute() always(?) prepends a newline; remove it.
if (rv.data.string.size > 1) {
assert(rv.data.string.data[0] == '\n');
String *s = &rv.data.string;
s->size--;
memmove(s->data, s->data + 1, s->size);
s->data[s->size] = '\0';
if (capture_local.ga_len > 1) {
// redir always(?) prepends a newline; remove it.
char *s = capture_local.ga_data;
assert(s[0] == '\n');
memmove(s, s + 1, (size_t)capture_local.ga_len);
s[capture_local.ga_len - 1] = '\0';
return (String) { // Caller will free the memory.
.data = s,
.size = (size_t)(capture_local.ga_len - 1),
};
}
return rv.data.string;
theend:
ga_clear(&capture_local);
return (String)STRING_INIT;
}
/// Evaluates a VimL expression (:help expression).