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ex_getln: Do not crash with :append/:insert/:change

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This change effectively disables history for lines inserted using this method. 
Not a big problem since it does not work for them in Vim in first place.

Also solves a bug(?): ex_window() run while in :append mode opens search history 
in Vim for some reason. Now it opens empty cmdline window.
This commit is contained in:
ZyX
2016-04-29 19:10:50 +03:00
parent 126e475807
commit 37f1ee0084
2 changed files with 65 additions and 8 deletions
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19
src/nvim/ex_getln.c
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@@ -289,7 +289,9 @@ static uint8_t *command_line_enter(int firstc, long count, int indent)
if (ccline.cmdbuff != NULL) {
// Put line in history buffer (":" and "=" only when it was typed).
if (ccline.cmdlen && s->firstc != NUL
if (s->histype != HIST_INVALID
&& ccline.cmdlen
&& s->firstc != NUL
&& (s->some_key_typed || s->histype == HIST_SEARCH)) {
add_to_history(s->histype, ccline.cmdbuff, true,
s->histype == HIST_SEARCH ? s->firstc : NUL);
@@ -1268,7 +1270,7 @@ static int command_line_handle_key(CommandLineState *s)
case K_KPAGEUP:
case K_PAGEDOWN:
case K_KPAGEDOWN:
if (hislen == 0 || s->firstc == NUL) {
if (s->histype == HIST_INVALID || hislen == 0 || s->firstc == NUL) {
// no history
return command_line_not_changed(s);
}
@@ -4294,7 +4296,7 @@ static HistoryType hist_char2type(const int c)
return HIST_SEARCH;
}
default: {
assert(false);
return HIST_INVALID;
}
}
// Silence -Wreturn-type
@@ -4485,7 +4487,7 @@ HistoryType get_histtype(const char_u *const name, const size_t len,
{
// No argument: use current history.
if (len == 0) {
return return_default ? HIST_DEFAULT :hist_char2type(ccline.cmdfirstc);
return return_default ? HIST_DEFAULT : hist_char2type(ccline.cmdfirstc);
}
for (HistoryType i = 0; history_names[i] != NULL; i++) {
@@ -4519,8 +4521,10 @@ add_to_history (
histentry_T *hisptr;
int len;
if (hislen == 0) /* no history */
if (hislen == 0 || histype == HIST_INVALID) { // no history
return;
}
assert(histype != HIST_DEFAULT);
if (cmdmod.keeppatterns && histype == HIST_SEARCH)
return;
@@ -4991,7 +4995,6 @@ static int ex_window(void)
win_T *wp;
int i;
linenr_T lnum;
int histtype;
garray_T winsizes;
char_u typestr[2];
int save_restart_edit = restart_edit;
@@ -5040,7 +5043,7 @@ static int ex_window(void)
/* Showing the prompt may have set need_wait_return, reset it. */
need_wait_return = FALSE;
histtype = hist_char2type(cmdwin_type);
const int histtype = hist_char2type(cmdwin_type);
if (histtype == HIST_CMD || histtype == HIST_DEBUG) {
if (p_wc == TAB) {
add_map((char_u *)"<buffer> <Tab> <C-X><C-V>", INSERT);
@@ -5055,7 +5058,7 @@ static int ex_window(void)
/* Fill the buffer with the history. */
init_history();
if (hislen > 0) {
if (hislen > 0 && histtype != HIST_INVALID) {
i = hisidx[histtype];
if (i >= 0) {
lnum = 0;