/*
* Wait for replies from id (win)
* Return 0 and the malloc'ed string when a reply is available.
* Return -1 if the window becomes invalid while waiting.
*/
int serverReadReply(VimRemotingClient *client, Window w, char **str)
{
int len;
char *s;
VimRemotingClient_ServerReply *p;
VimRemotingClient_WaitForReplyParams params = { client, w, NULL };
serverWait(client, w, waitForReply, ¶ms, -1);
if (params.result && params.result->strings.ga_len > 0) {
*str = strdup(params.result->strings.ga_data);
len = strlen(*str) + 1;
if (len < params.result->strings.ga_len) {
s = (char *) params.result->strings.ga_data;
memmove(s, s + len, params.result->strings.ga_len - len);
params.result->strings.ga_len -= len;
} else {
/* Last string read. Remove from list */
ga_clear(¶ms.result->strings);
findReply(client, w, SROP_Delete);
}
return 0;
}
return -1;
}
/// Stop using 'keymap'.
static void keymap_unload(void)
{
char_u buf[KMAP_MAXLEN + 10];
char_u *save_cpo = p_cpo;
kmap_T *kp;
if (!(curbuf->b_kmap_state & KEYMAP_LOADED)) {
return;
}
// Set 'cpoptions' to "C" to avoid line continuation.
p_cpo = (char_u *)"C";
// clear the ":lmap"s
kp = (kmap_T *)curbuf->b_kmap_ga.ga_data;
for (int i = 0; i < curbuf->b_kmap_ga.ga_len; ++i) {
vim_snprintf((char *)buf, sizeof(buf), "<buffer> %s", kp[i].from);
(void)do_map(1, buf, LANGMAP, FALSE);
xfree(kp[i].from);
xfree(kp[i].to);
}
p_cpo = save_cpo;
ga_clear(&curbuf->b_kmap_ga);
curbuf->b_kmap_state &= ~KEYMAP_LOADED;
status_redraw_curbuf();
}
/*
* Join list "l" into a string in "*gap", using separator "sep".
* When "echo_style" is TRUE use String as echoed, otherwise as inside a List.
* Return FAIL or OK.
*/
int
list_join(
garray_T *gap,
list_T *l,
char_u *sep,
int echo_style,
int restore_copyID,
int copyID)
{
garray_T join_ga;
int retval;
join_T *p;
int i;
if (l->lv_len < 1)
return OK; /* nothing to do */
ga_init2(&join_ga, (int)sizeof(join_T), l->lv_len);
retval = list_join_inner(gap, l, sep, echo_style, restore_copyID,
copyID, &join_ga);
/* Dispose each item in join_ga. */
if (join_ga.ga_data != NULL)
{
p = (join_T *)join_ga.ga_data;
for (i = 0; i < join_ga.ga_len; ++i)
{
vim_free(p->tofree);
++p;
}
ga_clear(&join_ga);
}
return retval;
}
/// Clear a growing array that contains a list of strings.
///
/// @param gap
void ga_clear_strings(garray_T *gap)
{
for (int i = 0; i < gap->ga_len; ++i) {
free(((char_u **)(gap->ga_data))[i]);
}
ga_clear(gap);
}
/*
* Encode "val" into a JSON format string.
* The result is added to "gap"
* Returns FAIL on failure and makes gap->ga_data empty.
*/
static int
json_encode_gap(garray_T *gap, typval_T *val, int options)
{
if (json_encode_item(gap, val, get_copyID(), options) == FAIL)
{
ga_clear(gap);
gap->ga_data = vim_strsave((char_u *)"");
return FAIL;
}
return OK;
}
/*
* ":menutrans".
* This function is also defined without the +multi_lang feature, in which
* case the commands are ignored.
*/
void ex_menutranslate(exarg_T *eap)
{
char_u *arg = eap->arg;
menutrans_T *tp;
char_u *from, *from_noamp, *to;
if (menutrans_ga.ga_itemsize == 0)
ga_init(&menutrans_ga, (int)sizeof(menutrans_T), 5);
/*
* ":menutrans clear": clear all translations.
*/
if (STRNCMP(arg, "clear", 5) == 0 && ends_excmd(*skipwhite(arg + 5))) {
tp = (menutrans_T *)menutrans_ga.ga_data;
for (int i = 0; i < menutrans_ga.ga_len; ++i) {
free(tp[i].from);
free(tp[i].from_noamp);
free(tp[i].to);
}
ga_clear(&menutrans_ga);
/* Delete all "menutrans_" global variables. */
del_menutrans_vars();
} else {
/* ":menutrans from to": add translation */
from = arg;
arg = menu_skip_part(arg);
to = skipwhite(arg);
*arg = NUL;
arg = menu_skip_part(to);
if (arg == to)
EMSG(_(e_invarg));
else {
ga_grow(&menutrans_ga, 1);
tp = (menutrans_T *)menutrans_ga.ga_data;
from = vim_strsave(from);
from_noamp = menu_text(from, NULL, NULL);
to = vim_strnsave(to, (int)(arg - to));
if (from_noamp != NULL) {
menu_translate_tab_and_shift(from);
menu_translate_tab_and_shift(to);
menu_unescape_name(from);
menu_unescape_name(to);
tp[menutrans_ga.ga_len].from = from;
tp[menutrans_ga.ga_len].from_noamp = from_noamp;
tp[menutrans_ga.ga_len].to = to;
++menutrans_ga.ga_len;
} else {
free(from);
free(from_noamp);
free(to);
}
}
}
}
static VimRemotingClient_ServerReply *findReply(VimRemotingClient *client, Window w, enum VimRemotingClient_ServerReplyOp op)
{
VimRemotingClient_ServerReply *p;
VimRemotingClient_ServerReply e;
int i;
p = (VimRemotingClient_ServerReply *) serverReply.ga_data;
i = 0;
while (i < serverReply.ga_len) {
if (p->id == w)
break;
i++, p++;
}
if (i >= serverReply.ga_len)
p = NULL;
if (p == NULL && op == SROP_Add)
{
if (serverReply.ga_growsize == 0)
ga_init2(&serverReply, sizeof(VimRemotingClient_ServerReply), 1);
if (ga_grow(&serverReply, 1) == OK)
{
p = ((VimRemotingClient_ServerReply *) serverReply.ga_data)
+ serverReply.ga_len;
e.id = w;
ga_init2(&e.strings, 1, 100);
memmove(p, &e, sizeof(e));
serverReply.ga_len++;
}
}
else if (p != NULL && op == SROP_Delete)
{
ga_clear(&p->strings);
memmove(p, p + 1, (serverReply.ga_len - i - 1) * sizeof(*p));
serverReply.ga_len--;
}
return p;
}
/*
* Split a string into parts to display in the balloon.
* Aimed at output from gdb. Attempts to split at white space, preserve quoted
* strings and make a struct look good.
* Resulting array is stored in "array" and returns the size of the array.
*/
int
split_message(char_u *mesg, pumitem_T **array)
{
garray_T ga;
char_u *p;
balpart_T *item;
int quoted = FALSE;
int height;
int line;
int item_idx;
int indent = 0;
int max_cells = 0;
int max_height = Rows / 2 - 2;
int long_item_count = 0;
int split_long_items = FALSE;
ga_init2(&ga, sizeof(balpart_T), 20);
p = mesg;
while (*p != NUL)
{
if (ga_grow(&ga, 1) == FAIL)
goto failed;
item = ((balpart_T *)ga.ga_data) + ga.ga_len;
item->start = p;
item->indent = indent;
item->cells = indent * 2;
++ga.ga_len;
while (*p != NUL)
{
if (*p == '"')
quoted = !quoted;
else if (*p == '\\' && p[1] != NUL)
++p;
else if (!quoted)
{
if ((*p == ',' && p[1] == ' ') || *p == '{' || *p == '}')
{
/* Looks like a good point to break. */
if (*p == '{')
++indent;
else if (*p == '}' && indent > 0)
--indent;
++item->cells;
p = skipwhite(p + 1);
break;
}
}
item->cells += ptr2cells(p);
p += MB_PTR2LEN(p);
}
item->bytelen = p - item->start;
if (item->cells > max_cells)
max_cells = item->cells;
long_item_count += (item->cells - 1) / BALLOON_MIN_WIDTH;
}
height = 2 + ga.ga_len;
/* If there are long items and the height is below the limit: split lines */
if (long_item_count > 0 && height + long_item_count <= max_height)
{
split_long_items = TRUE;
height += long_item_count;
}
/* Limit to half the window height, it has to fit above or below the mouse
* position. */
if (height > max_height)
height = max_height;
*array = (pumitem_T *)alloc_clear((unsigned)sizeof(pumitem_T) * height);
if (*array == NULL)
goto failed;
/* Add an empty line above and below, looks better. */
(*array)->pum_text = vim_strsave((char_u *)"");
(*array + height - 1)->pum_text = vim_strsave((char_u *)"");
for (line = 1, item_idx = 0; line < height - 1; ++item_idx)
{
int skip;
int thislen;
int copylen;
int ind;
int cells;
item = ((balpart_T *)ga.ga_data) + item_idx;
for (skip = 0; skip < item->bytelen; skip += thislen)
{
if (split_long_items && item->cells >= BALLOON_MIN_WIDTH)
{
cells = item->indent * 2;
for (p = item->start + skip; p < item->start + item->bytelen;
p += MB_PTR2LEN(p))
if ((cells += ptr2cells(p)) > BALLOON_MIN_WIDTH)
break;
thislen = p - (item->start + skip);
}
else
thislen = item->bytelen;
/* put indent at the start */
p = alloc(thislen + item->indent * 2 + 1);
for (ind = 0; ind < item->indent * 2; ++ind)
p[ind] = ' ';
/* exclude spaces at the end of the string */
for (copylen = thislen; copylen > 0; --copylen)
if (item->start[skip + copylen - 1] != ' ')
break;
vim_strncpy(p + ind, item->start + skip, copylen);
(*array)[line].pum_text = p;
item->indent = 0; /* wrapped line has no indent */
++line;
}
}
ga_clear(&ga);
return height;
failed:
ga_clear(&ga);
return 0;
}
/*
* Decode one item and put it in "res". If "res" is NULL only advance.
* Must already have skipped white space.
*
* Return FAIL for a decoding error (and give an error).
* Return MAYBE for an incomplete message.
*/
static int
json_decode_item(js_read_T *reader, typval_T *res, int options)
{
char_u *p;
int len;
int retval;
garray_T stack;
typval_T item;
typval_T *cur_item;
json_dec_item_T *top_item;
char_u key_buf[NUMBUFLEN];
ga_init2(&stack, sizeof(json_dec_item_T), 100);
cur_item = res;
init_tv(&item);
if (res != NULL)
init_tv(res);
fill_numbuflen(reader);
p = reader->js_buf + reader->js_used;
for (;;)
{
top_item = NULL;
if (stack.ga_len > 0)
{
top_item = ((json_dec_item_T *)stack.ga_data) + stack.ga_len - 1;
json_skip_white(reader);
p = reader->js_buf + reader->js_used;
if (*p == NUL)
{
retval = MAYBE;
if (top_item->jd_type == JSON_OBJECT)
/* did get the key, clear it */
clear_tv(&top_item->jd_key_tv);
goto theend;
}
if (top_item->jd_type == JSON_OBJECT_KEY
|| top_item->jd_type == JSON_ARRAY)
{
/* Check for end of object or array. */
if (*p == (top_item->jd_type == JSON_ARRAY ? ']' : '}'))
{
++reader->js_used; /* consume the ']' or '}' */
--stack.ga_len;
if (stack.ga_len == 0)
{
retval = OK;
goto theend;
}
if (cur_item != NULL)
cur_item = &top_item->jd_tv;
goto item_end;
}
}
}
if (top_item != NULL && top_item->jd_type == JSON_OBJECT_KEY
&& (options & JSON_JS)
&& reader->js_buf[reader->js_used] != '"'
&& reader->js_buf[reader->js_used] != '\''
&& reader->js_buf[reader->js_used] != '['
&& reader->js_buf[reader->js_used] != '{')
{
char_u *key;
/* accept an object key that is not in quotes */
key = p = reader->js_buf + reader->js_used;
while (*p != NUL && *p != ':' && *p > ' ')
++p;
if (cur_item != NULL)
{
cur_item->v_type = VAR_STRING;
cur_item->vval.v_string = vim_strnsave(key, (int)(p - key));
top_item->jd_key = cur_item->vval.v_string;
}
reader->js_used += (int)(p - key);
}
else
{
switch (*p)
{
case '[': /* start of array */
if (top_item && top_item->jd_type == JSON_OBJECT_KEY)
{
retval = FAIL;
break;
}
if (ga_grow(&stack, 1) == FAIL)
{
retval = FAIL;
break;
}
if (cur_item != NULL && rettv_list_alloc(cur_item) == FAIL)
{
cur_item->v_type = VAR_SPECIAL;
cur_item->vval.v_number = VVAL_NONE;
retval = FAIL;
break;
}
++reader->js_used; /* consume the '[' */
top_item = ((json_dec_item_T *)stack.ga_data)
+ stack.ga_len;
top_item->jd_type = JSON_ARRAY;
++stack.ga_len;
if (cur_item != NULL)
{
top_item->jd_tv = *cur_item;
cur_item = &item;
}
continue;
case '{': /* start of object */
if (top_item && top_item->jd_type == JSON_OBJECT_KEY)
{
retval = FAIL;
break;
}
if (ga_grow(&stack, 1) == FAIL)
{
retval = FAIL;
break;
}
if (cur_item != NULL && rettv_dict_alloc(cur_item) == FAIL)
{
cur_item->v_type = VAR_SPECIAL;
cur_item->vval.v_number = VVAL_NONE;
retval = FAIL;
break;
}
++reader->js_used; /* consume the '{' */
top_item = ((json_dec_item_T *)stack.ga_data)
+ stack.ga_len;
top_item->jd_type = JSON_OBJECT_KEY;
++stack.ga_len;
if (cur_item != NULL)
{
top_item->jd_tv = *cur_item;
cur_item = &top_item->jd_key_tv;
}
continue;
case '"': /* string */
retval = json_decode_string(reader, cur_item, *p);
break;
case '\'':
if (options & JSON_JS)
retval = json_decode_string(reader, cur_item, *p);
else
{
EMSG(_(e_invarg));
retval = FAIL;
}
break;
case ',': /* comma: empty item */
if ((options & JSON_JS) == 0)
{
EMSG(_(e_invarg));
retval = FAIL;
break;
}
/* FALLTHROUGH */
case NUL: /* empty */
if (cur_item != NULL)
{
cur_item->v_type = VAR_SPECIAL;
cur_item->vval.v_number = VVAL_NONE;
}
retval = OK;
break;
default:
if (VIM_ISDIGIT(*p) || *p == '-')
{
#ifdef FEAT_FLOAT
char_u *sp = p;
if (*sp == '-')
{
++sp;
if (*sp == NUL)
{
retval = MAYBE;
break;
}
if (!VIM_ISDIGIT(*sp))
{
EMSG(_(e_invarg));
retval = FAIL;
break;
}
}
sp = skipdigits(sp);
if (*sp == '.' || *sp == 'e' || *sp == 'E')
{
if (cur_item == NULL)
{
float_T f;
len = string2float(p, &f);
}
else
{
cur_item->v_type = VAR_FLOAT;
len = string2float(p, &cur_item->vval.v_float);
}
}
else
#endif
{
varnumber_T nr;
vim_str2nr(reader->js_buf + reader->js_used,
NULL, &len, 0, /* what */
&nr, NULL, 0);
if (cur_item != NULL)
{
cur_item->v_type = VAR_NUMBER;
cur_item->vval.v_number = nr;
}
}
reader->js_used += len;
retval = OK;
break;
}
if (STRNICMP((char *)p, "false", 5) == 0)
{
reader->js_used += 5;
if (cur_item != NULL)
{
cur_item->v_type = VAR_SPECIAL;
cur_item->vval.v_number = VVAL_FALSE;
}
retval = OK;
break;
}
if (STRNICMP((char *)p, "true", 4) == 0)
{
reader->js_used += 4;
if (cur_item != NULL)
{
cur_item->v_type = VAR_SPECIAL;
cur_item->vval.v_number = VVAL_TRUE;
}
retval = OK;
break;
}
if (STRNICMP((char *)p, "null", 4) == 0)
{
reader->js_used += 4;
if (cur_item != NULL)
{
cur_item->v_type = VAR_SPECIAL;
cur_item->vval.v_number = VVAL_NULL;
}
retval = OK;
break;
}
#ifdef FEAT_FLOAT
if (STRNICMP((char *)p, "NaN", 3) == 0)
{
reader->js_used += 3;
if (cur_item != NULL)
{
cur_item->v_type = VAR_FLOAT;
cur_item->vval.v_float = NAN;
}
retval = OK;
break;
}
if (STRNICMP((char *)p, "Infinity", 8) == 0)
{
reader->js_used += 8;
if (cur_item != NULL)
{
cur_item->v_type = VAR_FLOAT;
cur_item->vval.v_float = INFINITY;
}
retval = OK;
break;
}
#endif
/* check for truncated name */
len = (int)(reader->js_end - (reader->js_buf + reader->js_used));
if (
(len < 5 && STRNICMP((char *)p, "false", len) == 0)
#ifdef FEAT_FLOAT
|| (len < 8 && STRNICMP((char *)p, "Infinity", len) == 0)
|| (len < 3 && STRNICMP((char *)p, "NaN", len) == 0)
#endif
|| (len < 4 && (STRNICMP((char *)p, "true", len) == 0
|| STRNICMP((char *)p, "null", len) == 0)))
retval = MAYBE;
else
retval = FAIL;
break;
}
/* We are finished when retval is FAIL or MAYBE and when at the
* toplevel. */
if (retval == FAIL)
break;
if (retval == MAYBE || stack.ga_len == 0)
goto theend;
if (top_item != NULL && top_item->jd_type == JSON_OBJECT_KEY
&& cur_item != NULL)
{
top_item->jd_key = get_tv_string_buf_chk(cur_item, key_buf);
if (top_item->jd_key == NULL)
{
clear_tv(cur_item);
EMSG(_(e_invarg));
retval = FAIL;
goto theend;
}
}
}
item_end:
top_item = ((json_dec_item_T *)stack.ga_data) + stack.ga_len - 1;
switch (top_item->jd_type)
{
case JSON_ARRAY:
if (res != NULL)
{
listitem_T *li = listitem_alloc();
if (li == NULL)
{
clear_tv(cur_item);
retval = FAIL;
goto theend;
}
li->li_tv = *cur_item;
list_append(top_item->jd_tv.vval.v_list, li);
}
if (cur_item != NULL)
cur_item = &item;
json_skip_white(reader);
p = reader->js_buf + reader->js_used;
if (*p == ',')
++reader->js_used;
else if (*p != ']')
{
if (*p == NUL)
retval = MAYBE;
else
{
EMSG(_(e_invarg));
retval = FAIL;
}
goto theend;
}
break;
case JSON_OBJECT_KEY:
json_skip_white(reader);
p = reader->js_buf + reader->js_used;
if (*p != ':')
{
if (cur_item != NULL)
clear_tv(cur_item);
if (*p == NUL)
retval = MAYBE;
else
{
EMSG(_(e_invarg));
retval = FAIL;
}
goto theend;
}
++reader->js_used;
json_skip_white(reader);
top_item->jd_type = JSON_OBJECT;
if (cur_item != NULL)
cur_item = &item;
break;
case JSON_OBJECT:
if (cur_item != NULL
&& dict_find(top_item->jd_tv.vval.v_dict,
top_item->jd_key, -1) != NULL)
{
EMSG2(_("E938: Duplicate key in JSON: \"%s\""),
top_item->jd_key);
clear_tv(&top_item->jd_key_tv);
clear_tv(cur_item);
retval = FAIL;
goto theend;
}
if (cur_item != NULL)
{
dictitem_T *di = dictitem_alloc(top_item->jd_key);
clear_tv(&top_item->jd_key_tv);
if (di == NULL)
{
clear_tv(cur_item);
retval = FAIL;
goto theend;
}
di->di_tv = *cur_item;
di->di_tv.v_lock = 0;
if (dict_add(top_item->jd_tv.vval.v_dict, di) == FAIL)
{
dictitem_free(di);
retval = FAIL;
goto theend;
}
}
json_skip_white(reader);
p = reader->js_buf + reader->js_used;
if (*p == ',')
++reader->js_used;
else if (*p != '}')
{
if (*p == NUL)
retval = MAYBE;
else
{
EMSG(_(e_invarg));
retval = FAIL;
}
goto theend;
}
top_item->jd_type = JSON_OBJECT_KEY;
if (cur_item != NULL)
cur_item = &top_item->jd_key_tv;
break;
}
}
/* Get here when parsing failed. */
if (res != NULL)
{
clear_tv(res);
res->v_type = VAR_SPECIAL;
res->vval.v_number = VVAL_NONE;
}
EMSG(_(e_invarg));
theend:
ga_clear(&stack);
return retval;
}
static int
json_decode_string(js_read_T *reader, typval_T *res, int quote)
{
garray_T ga;
int len;
char_u *p;
int c;
varnumber_T nr;
if (res != NULL)
ga_init2(&ga, 1, 200);
p = reader->js_buf + reader->js_used + 1; /* skip over " or ' */
while (*p != quote)
{
/* The JSON is always expected to be utf-8, thus use utf functions
* here. The string is converted below if needed. */
if (*p == NUL || p[1] == NUL
#ifdef FEAT_MBYTE
|| utf_ptr2len(p) < utf_byte2len(*p)
#endif
)
{
/* Not enough bytes to make a character or end of the string. Get
* more if possible. */
if (reader->js_fill == NULL)
break;
len = (int)(reader->js_end - p);
reader->js_used = (int)(p - reader->js_buf);
if (!reader->js_fill(reader))
break; /* didn't get more */
p = reader->js_buf + reader->js_used;
reader->js_end = reader->js_buf + STRLEN(reader->js_buf);
continue;
}
if (*p == '\\')
{
c = -1;
switch (p[1])
{
case '\\': c = '\\'; break;
case '"': c = '"'; break;
case 'b': c = BS; break;
case 't': c = TAB; break;
case 'n': c = NL; break;
case 'f': c = FF; break;
case 'r': c = CAR; break;
case 'u':
if (reader->js_fill != NULL
&& (int)(reader->js_end - p) < NUMBUFLEN)
{
reader->js_used = (int)(p - reader->js_buf);
if (reader->js_fill(reader))
{
p = reader->js_buf + reader->js_used;
reader->js_end = reader->js_buf
+ STRLEN(reader->js_buf);
}
}
nr = 0;
len = 0;
vim_str2nr(p + 2, NULL, &len,
STR2NR_HEX + STR2NR_FORCE, &nr, NULL, 4);
p += len + 2;
if (0xd800 <= nr && nr <= 0xdfff
&& (int)(reader->js_end - p) >= 6
&& *p == '\\' && *(p+1) == 'u')
{
varnumber_T nr2 = 0;
/* decode surrogate pair: \ud812\u3456 */
len = 0;
vim_str2nr(p + 2, NULL, &len,
STR2NR_HEX + STR2NR_FORCE, &nr2, NULL, 4);
if (0xdc00 <= nr2 && nr2 <= 0xdfff)
{
p += len + 2;
nr = (((nr - 0xd800) << 10) |
((nr2 - 0xdc00) & 0x3ff)) + 0x10000;
}
}
if (res != NULL)
{
#ifdef FEAT_MBYTE
char_u buf[NUMBUFLEN];
buf[utf_char2bytes((int)nr, buf)] = NUL;
ga_concat(&ga, buf);
#else
ga_append(&ga, (int)nr);
#endif
}
break;
default:
/* not a special char, skip over \ */
++p;
continue;
}
if (c > 0)
{
p += 2;
if (res != NULL)
ga_append(&ga, c);
}
}
else
{
#ifdef FEAT_MBYTE
len = utf_ptr2len(p);
#else
len = 1;
#endif
if (res != NULL)
{
if (ga_grow(&ga, len) == FAIL)
{
ga_clear(&ga);
return FAIL;
}
mch_memmove((char *)ga.ga_data + ga.ga_len, p, (size_t)len);
ga.ga_len += len;
}
p += len;
}
}
reader->js_used = (int)(p - reader->js_buf);
if (*p == quote)
{
++reader->js_used;
if (res != NULL)
{
ga_append(&ga, NUL);
res->v_type = VAR_STRING;
#if defined(FEAT_MBYTE) && defined(USE_ICONV)
if (!enc_utf8)
{
vimconv_T conv;
/* Convert the utf-8 string to 'encoding'. */
conv.vc_type = CONV_NONE;
convert_setup(&conv, (char_u*)"utf-8", p_enc);
if (conv.vc_type != CONV_NONE)
{
res->vval.v_string =
string_convert(&conv, ga.ga_data, NULL);
vim_free(ga.ga_data);
}
convert_setup(&conv, NULL, NULL);
}
else
#endif
res->vval.v_string = ga.ga_data;
}
return OK;
}
if (res != NULL)
{
res->v_type = VAR_SPECIAL;
res->vval.v_number = VVAL_NONE;
ga_clear(&ga);
}
return MAYBE;
}
int os_call_shell(char_u *cmd, ShellOpts opts, char_u *extra_shell_arg)
{
uv_stdio_container_t proc_stdio[3];
uv_process_options_t proc_opts;
uv_process_t proc;
uv_pipe_t proc_stdin, proc_stdout;
uv_write_t write_req;
int expected_exits = 1;
ProcessData pdata = {
.reading = false,
.exited = 0,
.old_mode = cur_tmode,
.old_state = State,
.shell_stdin = (uv_stream_t *)&proc_stdin,
.wbuffer = NULL,
};
out_flush();
if (opts & kShellOptCooked) {
// set to normal mode
settmode(TMODE_COOK);
}
// While the child is running, ignore terminating signals
signal_reject_deadly();
// Create argv for `uv_spawn`
// TODO(tarruda): we can use a static buffer for small argument vectors. 1024
// bytes should be enough for most of the commands and if more is necessary
// we can allocate a another buffer
proc_opts.args = shell_build_argv(cmd, extra_shell_arg);
proc_opts.file = proc_opts.args[0];
proc_opts.exit_cb = exit_cb;
// Initialize libuv structures
proc_opts.stdio = proc_stdio;
proc_opts.stdio_count = 3;
// Hide window on Windows :)
proc_opts.flags = UV_PROCESS_WINDOWS_HIDE;
proc_opts.cwd = NULL;
proc_opts.env = NULL;
// The default is to inherit all standard file descriptors(this will change
// when the UI is moved to an external process)
proc_stdio[0].flags = UV_INHERIT_FD;
proc_stdio[0].data.fd = 0;
proc_stdio[1].flags = UV_INHERIT_FD;
proc_stdio[1].data.fd = 1;
proc_stdio[2].flags = UV_INHERIT_FD;
proc_stdio[2].data.fd = 2;
if (opts & (kShellOptHideMess | kShellOptExpand)) {
// Ignore the shell stdio(redirects to /dev/null on unixes)
proc_stdio[0].flags = UV_IGNORE;
proc_stdio[1].flags = UV_IGNORE;
proc_stdio[2].flags = UV_IGNORE;
} else {
State = EXTERNCMD;
if (opts & kShellOptWrite) {
// Write from the current buffer into the process stdin
uv_pipe_init(uv_default_loop(), &proc_stdin, 0);
write_req.data = &pdata;
proc_stdio[0].flags = UV_CREATE_PIPE | UV_READABLE_PIPE;
proc_stdio[0].data.stream = (uv_stream_t *)&proc_stdin;
}
if (opts & kShellOptRead) {
// Read from the process stdout into the current buffer
uv_pipe_init(uv_default_loop(), &proc_stdout, 0);
proc_stdout.data = &pdata;
proc_stdio[1].flags = UV_CREATE_PIPE | UV_WRITABLE_PIPE;
proc_stdio[1].data.stream = (uv_stream_t *)&proc_stdout;
ga_init(&pdata.ga, 1, BUFFER_LENGTH);
}
}
if (uv_spawn(uv_default_loop(), &proc, &proc_opts)) {
// Failed, probably due to `sh` not being executable
if (!emsg_silent) {
MSG_PUTS(_("\nCannot execute shell "));
msg_outtrans(p_sh);
msg_putchar('\n');
}
return proc_cleanup_exit(&pdata, &proc_opts, opts);
}
// Assign the flag address after `proc` is initialized by `uv_spawn`
proc.data = &pdata;
if (opts & kShellOptWrite) {
// Queue everything for writing to the shell stdin
write_selection(&write_req);
expected_exits++;
}
if (opts & kShellOptRead) {
// Start the read stream for the shell stdout
uv_read_start((uv_stream_t *)&proc_stdout, alloc_cb, read_cb);
expected_exits++;
}
// Keep running the loop until all three handles are completely closed
while (pdata.exited < expected_exits) {
uv_run(uv_default_loop(), UV_RUN_ONCE);
if (got_int) {
// Forward SIGINT to the shell
// TODO(tarruda): for now this is only needed if the terminal is in raw
// mode, but when the UI is externalized we'll also need it, so leave it
// here
uv_process_kill(&proc, SIGINT);
got_int = false;
}
}
if (opts & kShellOptRead) {
if (pdata.ga.ga_len > 0) {
// If there's an unfinished line in the growable array, append it now.
append_ga_line(&pdata.ga);
// remember that the NL was missing
curbuf->b_no_eol_lnum = curwin->w_cursor.lnum;
} else {
curbuf->b_no_eol_lnum = 0;
}
ga_clear(&pdata.ga);
}
if (opts & kShellOptWrite) {
free(pdata.wbuffer);
}
return proc_cleanup_exit(&pdata, &proc_opts, opts);
}
static int tokenize(char_u *str, char **argv)
{
int argc = 0, len;
char_u *p = str;
while (*p != NUL) {
len = word_length(p);
if (argv != NULL) {
// Fill the slot
argv[argc] = xmalloc(len + 1);
memcpy(argv[argc], p, len);
argv[argc][len] = NUL;
}
argc++;
p += len;
p = skipwhite(p);
}
return argc;
}
static int
json_decode_string(js_read_T *reader, typval_T *res)
{
garray_T ga;
int len;
char_u *p;
int c;
long nr;
char_u buf[NUMBUFLEN];
if (res != NULL)
ga_init2(&ga, 1, 200);
p = reader->js_buf + reader->js_used + 1; /* skip over " */
while (*p != '"')
{
if (*p == NUL || p[1] == NUL
#ifdef FEAT_MBYTE
|| utf_ptr2len(p) < utf_byte2len(*p)
#endif
)
{
if (reader->js_fill == NULL)
break;
len = (int)(reader->js_end - p);
reader->js_used = (int)(p - reader->js_buf);
if (!reader->js_fill(reader))
break; /* didn't get more */
p = reader->js_buf + reader->js_used;
reader->js_end = reader->js_buf + STRLEN(reader->js_buf);
continue;
}
if (*p == '\\')
{
c = -1;
switch (p[1])
{
case '\\': c = '\\'; break;
case '"': c = '"'; break;
case 'b': c = BS; break;
case 't': c = TAB; break;
case 'n': c = NL; break;
case 'f': c = FF; break;
case 'r': c = CAR; break;
case 'u':
if (reader->js_fill != NULL
&& (int)(reader->js_end - p) < NUMBUFLEN)
{
reader->js_used = (int)(p - reader->js_buf);
if (reader->js_fill(reader))
{
p = reader->js_buf + reader->js_used;
reader->js_end = reader->js_buf
+ STRLEN(reader->js_buf);
}
}
vim_str2nr(p + 2, NULL, &len,
STR2NR_HEX + STR2NR_FORCE, &nr, NULL, 4);
p += len + 2;
if (res != NULL)
{
#ifdef FEAT_MBYTE
buf[(*mb_char2bytes)((int)nr, buf)] = NUL;
ga_concat(&ga, buf);
#else
ga_append(&ga, nr);
#endif
}
break;
default:
/* not a special char, skip over \ */
++p;
continue;
}
if (c > 0)
{
p += 2;
if (res != NULL)
ga_append(&ga, c);
}
}
else
{
len = MB_PTR2LEN(p);
if (res != NULL)
{
if (ga_grow(&ga, len) == FAIL)
{
ga_clear(&ga);
return FAIL;
}
mch_memmove((char *)ga.ga_data + ga.ga_len, p, (size_t)len);
ga.ga_len += len;
}
p += len;
}
}
reader->js_used = (int)(p - reader->js_buf);
if (*p == '"')
{
++reader->js_used;
if (res != NULL)
{
res->v_type = VAR_STRING;
res->vval.v_string = ga.ga_data;
}
return OK;
}
if (res != NULL)
{
res->v_type = VAR_SPECIAL;
res->vval.v_number = VVAL_NONE;
ga_clear(&ga);
}
return MAYBE;
}
void
blob_free(blob_T *b)
{
ga_clear(&b->bv_ga);
vim_free(b);
}
