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API: nvim_source_output

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- Similar to nvim_source but will capture the output
- Add meaningful VimL tracebacks for nvim_source
- Handle got_int
- Add error reporting
This commit is contained in:
Vikram Pal
2019-10-09 18:34:37 +05:30
committed by Justin M. Keyes
parent 276c2da286
commit bd43e011b5
3 changed files with 111 additions and 12 deletions
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55
src/nvim/api/vim.c
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@@ -73,14 +73,63 @@ void api_vim_free_all_mem(void)
map_free(String, handle_T)(namespace_ids);
}
void nvim_source(String command, Error *err)
FUNC_API_SINCE(7)
/// Executes a multiline block of ex-commands from a string.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @param src String containing the ex-commands
/// @param[out] err Error details (Vim error), if any
void nvim_source(String src, Error *err) FUNC_API_SINCE(7)
{
try_start();
do_source_str(command.data);
do_source_str(src.data, "nvim_source(..)");
try_end(err);
}
/// Executes a multiline block of ex-commands from a string and returns its
/// (non-error) output. Shell |:!| output is not captured.
///
/// On execution error: fails with VimL error, does not update v:errmsg.
///
/// @param src String containing the ex-commands
/// @param[out] err Error details (Vim error), if any
String nvim_source_output(String src, Error *err) FUNC_API_SINCE(7)
{
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_source_str(src.data, "nvim_source_output(..)");
capture_ga = save_capture_ga;
msg_silent = save_msg_silent;
try_end(err);
if (ERROR_SET(err)) {
goto theend;
}
if (capture_local.ga_len > 1) {
String s = (String){
.data = capture_local.ga_data,
.size = (size_t)capture_local.ga_len,
};
// redir usually (except :echon) prepends a newline.
if (s.data[0] == '\n') {
memmove(s.data, s.data + 1, s.size - 1);
s.data[s.size - 1] = '\0';
s.size = s.size - 1;
}
return s; // Caller will free the memory.
}
theend:
ga_clear(&capture_local);
return (String)STRING_INIT;
}
/// Executes an ex-command.
///
/// On execution error: fails with VimL error, does not update v:errmsg.