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patch 8.1.0519: cannot save and restore the tag stack

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Problem:    Cannot save and restore the tag stack.
Solution:   Add gettagstack() and settagstack(). (Yegappan Lakshmanan,
            closes #3604)
This commit is contained in:
Bram Moolenaar
2018-11-11 15:21:05 +01:00
parent 8617b40159
commit f49cc60aa8
15 changed files with 494 additions and 1 deletions
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81
src/evalfunc.c
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@@ -201,6 +201,7 @@ static void f_getregtype(typval_T *argvars, typval_T *rettv);
static void f_gettabinfo(typval_T *argvars, typval_T *rettv);
static void f_gettabvar(typval_T *argvars, typval_T *rettv);
static void f_gettabwinvar(typval_T *argvars, typval_T *rettv);
static void f_gettagstack(typval_T *argvars, typval_T *rettv);
static void f_getwininfo(typval_T *argvars, typval_T *rettv);
static void f_getwinpos(typval_T *argvars, typval_T *rettv);
static void f_getwinposx(typval_T *argvars, typval_T *rettv);
@@ -361,6 +362,7 @@ static void f_setqflist(typval_T *argvars, typval_T *rettv);
static void f_setreg(typval_T *argvars, typval_T *rettv);
static void f_settabvar(typval_T *argvars, typval_T *rettv);
static void f_settabwinvar(typval_T *argvars, typval_T *rettv);
static void f_settagstack(typval_T *argvars, typval_T *rettv);
static void f_setwinvar(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_CRYPT
static void f_sha256(typval_T *argvars, typval_T *rettv);
@@ -666,6 +668,7 @@ static struct fst
{"gettabinfo", 0, 1, f_gettabinfo},
{"gettabvar", 2, 3, f_gettabvar},
{"gettabwinvar", 3, 4, f_gettabwinvar},
{"gettagstack", 0, 1, f_gettagstack},
{"getwininfo", 0, 1, f_getwininfo},
{"getwinpos", 0, 1, f_getwinpos},
{"getwinposx", 0, 0, f_getwinposx},
@@ -828,6 +831,7 @@ static struct fst
{"setreg", 2, 3, f_setreg},
{"settabvar", 3, 3, f_settabvar},
{"settabwinvar", 4, 4, f_settabwinvar},
{"settagstack", 2, 3, f_settagstack},
{"setwinvar", 3, 3, f_setwinvar},
#ifdef FEAT_CRYPT
{"sha256", 1, 1, f_sha256},
@@ -5656,6 +5660,27 @@ f_gettabwinvar(typval_T *argvars, typval_T *rettv)
getwinvar(argvars, rettv, 1);
}
/*
* "gettagstack()" function
*/
static void
f_gettagstack(typval_T *argvars, typval_T *rettv)
{
win_T *wp = curwin; // default is current window
if (rettv_dict_alloc(rettv) != OK)
return;
if (argvars[0].v_type != VAR_UNKNOWN)
{
wp = find_win_by_nr_or_id(&argvars[0]);
if (wp == NULL)
return;
}
get_tagstack(wp, rettv->vval.v_dict);
}
/*
* Returns information about a window as a dictionary.
*/
@@ -11118,6 +11143,62 @@ f_settabwinvar(typval_T *argvars, typval_T *rettv)
setwinvar(argvars, rettv, 1);
}
/*
* "settagstack()" function
*/
static void
f_settagstack(typval_T *argvars, typval_T *rettv)
{
static char *e_invact2 = N_("E962: Invalid action: '%s'");
win_T *wp;
dict_T *d;
int action = 'r';
rettv->vval.v_number = -1;
// first argument: window number or id
wp = find_win_by_nr_or_id(&argvars[0]);
if (wp == NULL)
return;
// second argument: dict with items to set in the tag stack
if (argvars[1].v_type != VAR_DICT)
{
EMSG(_(e_dictreq));
return;
}
d = argvars[1].vval.v_dict;
if (d == NULL)
return;
// third argument: action - 'a' for append and 'r' for replace.
// default is to replace the stack.
if (argvars[2].v_type == VAR_UNKNOWN)
action = 'r';
else if (argvars[2].v_type == VAR_STRING)
{
char_u *actstr;
actstr = get_tv_string_chk(&argvars[2]);
if (actstr == NULL)
return;
if ((*actstr == 'r' || *actstr == 'a') && actstr[1] == NUL)
action = *actstr;
else
{
EMSG2(_(e_invact2), actstr);
return;
}
}
else
{
EMSG(_(e_stringreq));
return;
}
if (set_tagstack(wp, d, action) == OK)
rettv->vval.v_number = 0;
}
/*
* "setwinvar()" function
*/