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patch 8.0.1514: getting the list of changes is not easy

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Problem:    Getting the list of changes is not easy.
Solution:   Add the getchangelist() function. (Yegappan Lakshmanan,
            closes #2634)
This commit is contained in:
Bram Moolenaar
2018-02-13 13:59:59 +01:00
parent 4867974137
commit 07ad816525
7 changed files with 124 additions and 0 deletions
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54
src/evalfunc.c
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@@ -165,6 +165,7 @@ static void f_get(typval_T *argvars, typval_T *rettv);
static void f_getbufinfo(typval_T *argvars, typval_T *rettv);
static void f_getbufline(typval_T *argvars, typval_T *rettv);
static void f_getbufvar(typval_T *argvars, typval_T *rettv);
static void f_getchangelist(typval_T *argvars, typval_T *rettv);
static void f_getchar(typval_T *argvars, typval_T *rettv);
static void f_getcharmod(typval_T *argvars, typval_T *rettv);
static void f_getcharsearch(typval_T *argvars, typval_T *rettv);
@@ -607,6 +608,7 @@ static struct fst
{"getbufinfo", 0, 1, f_getbufinfo},
{"getbufline", 2, 3, f_getbufline},
{"getbufvar", 2, 3, f_getbufvar},
{"getchangelist", 1, 1, f_getchangelist},
{"getchar", 0, 1, f_getchar},
{"getcharmod", 0, 0, f_getcharmod},
{"getcharsearch", 0, 0, f_getcharsearch},
@@ -4346,6 +4348,58 @@ f_getbufvar(typval_T *argvars, typval_T *rettv)
--emsg_off;
}
/*
* "getchangelist()" function
*/
static void
f_getchangelist(typval_T *argvars, typval_T *rettv)
{
#ifdef FEAT_JUMPLIST
buf_T *buf;
int i;
list_T *l;
dict_T *d;
#endif
if (rettv_list_alloc(rettv) != OK)
return;
#ifdef FEAT_JUMPLIST
buf = find_buffer(&argvars[0]);
if (buf == NULL)
return;
l = list_alloc();
if (l == NULL)
return;
if (list_append_list(rettv->vval.v_list, l) == FAIL)
return;
/*
* The current window change list index tracks only the position in the
* current buffer change list. For other buffers, use the change list
* length as the current index.
*/
list_append_number(rettv->vval.v_list,
(varnumber_T)((buf == curwin->w_buffer)
? curwin->w_changelistidx : buf->b_changelistlen));
for (i = 0; i < buf->b_changelistlen; ++i)
{
if (buf->b_changelist[i].lnum == 0)
continue;
if ((d = dict_alloc()) == NULL)
return;
if (list_append_dict(l, d) == FAIL)
return;
dict_add_nr_str(d, "lnum", (long)buf->b_changelist[i].lnum, NULL);
dict_add_nr_str(d, "col", (long)buf->b_changelist[i].col, NULL);
# ifdef FEAT_VIRTUALEDIT
dict_add_nr_str(d, "coladd", (long)buf->b_changelist[i].coladd, NULL);
# endif
}
#endif
}
/*
* "getchar()" function
*/