Problem: Cannot check the current state.
Solution: Add the state() function.
split({expr} [, {pat} [, {keepempty}]])
List make |List| from {pat} separated {expr}
sqrt({expr}) Float square root of {expr}
+state([{what}]) String current state of Vim
str2float({expr}) Float convert String to Float
str2list({expr} [, {utf8}]) List convert each character of {expr} to
ASCII/UTF8 value
If [expr] is supplied and it evaluates to a non-zero Number or
a non-empty String (|non-zero-arg|), then the full mode is
returned, otherwise only the first letter is returned.
+ Also see |state()|.
n Normal, Terminal-Normal
no Operator-pending
{only available when compiled with the |+float| feature}
+state([{what}]) *state()*
+ Return a string which contains characters indicating the
+ current state. Mostly useful in callbacks that want to do
+ work that may not always be safe. Roughly this works like:
+ - callback uses state() to check if work is safe to do.
+ If yes, then do it right away.
+ Otherwise add to work queue and add SafeState and/or
+ SafeStateAgain autocommand.
+ - When SafeState or SafeStateAgain is triggered, check with
+ state() if the work can be done now, and if yes remove it
+ from the queue and execute.
+ Also see |mode()|.
+
+ When {what} is given only characters in this string will be
+ added. E.g, this checks if the screen has scrolled: >
+ if state('s') != ''
+<
+ These characters indicate the state:
+ m halfway a mapping, :normal command, feedkeys() or
+ stuffed command
+ o operator pending or waiting for a command argument
+ a Insert mode autocomplete active
+ x executing an autocommand
+ w blocked on waiting, e.g. ch_evalexpr() and
+ ch_read(), ch_readraw() when reading json.
+ c callback invoked (repeats for recursiveness up to "ccc")
+ s screen has scrolled for messages
+
str2float({expr}) *str2float()*
Convert String {expr} to a Float. This mostly works the same
as when using a floating point number in an expression, see
* Read from RAW or NL "channel"/"part". Blocks until there is something to
* read or the timeout expires.
* When "raw" is TRUE don't block waiting on a NL.
+ * Does not trigger timers or handle messages.
* Returns what was read in allocated memory.
* Returns NULL in case of error or timeout.
*/
return msg;
}
+static int channel_blocking_wait = 0;
+
+/*
+ * Return TRUE if in a blocking wait that might trigger callbacks.
+ */
+ int
+channel_in_blocking_wait(void)
+{
+ return channel_blocking_wait > 0;
+}
+
/*
* Read one JSON message with ID "id" from "channel"/"part" and store the
* result in "rettv".
int retval = FAIL;
ch_log(channel, "Blocking read JSON for id %d", id);
+ ++channel_blocking_wait;
if (id >= 0)
channel_add_block_id(chanpart, id);
}
if (id >= 0)
channel_remove_block_id(chanpart, id);
+ --channel_blocking_wait;
return retval;
}
static void f_matchstrpos(typval_T *argvars, typval_T *rettv);
static void f_max(typval_T *argvars, typval_T *rettv);
static void f_min(typval_T *argvars, typval_T *rettv);
-static void f_mode(typval_T *argvars, typval_T *rettv);
#ifdef FEAT_MZSCHEME
static void f_mzeval(typval_T *argvars, typval_T *rettv);
#endif
{"split", 1, 3, FEARG_1, f_split},
#ifdef FEAT_FLOAT
{"sqrt", 1, 1, FEARG_1, f_sqrt},
+#endif
+ {"state", 0, 1, FEARG_1, f_state},
+#ifdef FEAT_FLOAT
{"str2float", 1, 1, FEARG_1, f_str2float},
#endif
{"str2list", 1, 2, FEARG_1, f_str2list},
/*
* Return TRUE for a non-zero Number and a non-empty String.
*/
- static int
+ int
non_zero_arg(typval_T *argvars)
{
return ((argvars[0].v_type == VAR_NUMBER
max_min(argvars, rettv, FALSE);
}
-/*
- * "mode()" function
- */
- static void
-f_mode(typval_T *argvars, typval_T *rettv)
-{
- char_u buf[4];
-
- vim_memset(buf, 0, sizeof(buf));
-
- if (time_for_testing == 93784)
- {
- /* Testing the two-character code. */
- buf[0] = 'x';
- buf[1] = '!';
- }
-#ifdef FEAT_TERMINAL
- else if (term_use_loop())
- buf[0] = 't';
-#endif
- else if (VIsual_active)
- {
- if (VIsual_select)
- buf[0] = VIsual_mode + 's' - 'v';
- else
- buf[0] = VIsual_mode;
- }
- else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE
- || State == CONFIRM)
- {
- buf[0] = 'r';
- if (State == ASKMORE)
- buf[1] = 'm';
- else if (State == CONFIRM)
- buf[1] = '?';
- }
- else if (State == EXTERNCMD)
- buf[0] = '!';
- else if (State & INSERT)
- {
- if (State & VREPLACE_FLAG)
- {
- buf[0] = 'R';
- buf[1] = 'v';
- }
- else
- {
- if (State & REPLACE_FLAG)
- buf[0] = 'R';
- else
- buf[0] = 'i';
- if (ins_compl_active())
- buf[1] = 'c';
- else if (ctrl_x_mode_not_defined_yet())
- buf[1] = 'x';
- }
- }
- else if ((State & CMDLINE) || exmode_active)
- {
- buf[0] = 'c';
- if (exmode_active == EXMODE_VIM)
- buf[1] = 'v';
- else if (exmode_active == EXMODE_NORMAL)
- buf[1] = 'e';
- }
- else
- {
- buf[0] = 'n';
- if (finish_op)
- {
- buf[1] = 'o';
- // to be able to detect force-linewise/blockwise/characterwise operations
- buf[2] = motion_force;
- }
- else if (restart_edit == 'I' || restart_edit == 'R'
- || restart_edit == 'V')
- {
- buf[1] = 'i';
- buf[2] = restart_edit;
- }
- }
-
- /* Clear out the minor mode when the argument is not a non-zero number or
- * non-empty string. */
- if (!non_zero_arg(&argvars[0]))
- buf[1] = NUL;
-
- rettv->vval.v_string = vim_strsave(buf);
- rettv->v_type = VAR_STRING;
-}
-
#if defined(FEAT_MZSCHEME) || defined(PROTO)
/*
* "mzeval()" function
// When TRUE in a safe state when starting to wait for a character.
static int was_safe = FALSE;
+static oparg_T *current_oap = NULL;
/*
- * Trigger SafeState if currently in a safe state for main_loop().
+ * Return TRUE if an operator was started but not finished yet.
+ * Includes typing a count or a register name.
*/
- static void
-may_trigger_safestate_main(oparg_T *oap)
+ int
+op_pending(void)
{
- may_trigger_safestate(
- !finish_op
- && oap->prev_opcount > 0
- && oap->prev_count0 == 0
- && oap->op_type == OP_NOP
- && oap->regname == NUL
- && restart_edit == 0);
+ return !(current_oap != NULL
+ && !finish_op
+ && current_oap->prev_opcount == 0
+ && current_oap->prev_count0 == 0
+ && current_oap->op_type == OP_NOP
+ && current_oap->regname == NUL);
}
/*
int cmdwin, /* TRUE when working in the command-line window */
int noexmode) /* TRUE when return on entering Ex mode */
{
- oparg_T oa; /* operator arguments */
- volatile int previous_got_int = FALSE; /* "got_int" was TRUE */
+ oparg_T oa; // operator arguments
+ oparg_T *prev_oap; // operator arguments
+ volatile int previous_got_int = FALSE; // "got_int" was TRUE
#ifdef FEAT_CONCEAL
- /* these are static to avoid a compiler warning */
+ // these are static to avoid a compiler warning
static linenr_T conceal_old_cursor_line = 0;
static linenr_T conceal_new_cursor_line = 0;
static int conceal_update_lines = FALSE;
#endif
+ prev_oap = current_oap;
+ current_oap = &oa;
+
#if defined(FEAT_X11) && defined(FEAT_XCLIPBOARD)
/* Setup to catch a terminating error from the X server. Just ignore
* it, restore the state and continue. This might not always work
// If nothing is pending and we are going to wait for the user to
// type a character, trigger SafeState.
- may_trigger_safestate_main(&oa);
+ may_trigger_safestate(!op_pending() && restart_edit == 0);
#if defined(FEAT_DIFF)
// Updating diffs from changed() does not always work properly,
if (exmode_active)
{
if (noexmode) /* End of ":global/path/visual" commands */
- return;
+ goto theend;
do_exmode(exmode_active == EXMODE_VIM);
}
else
}
}
}
+
+theend:
+ current_oap = prev_oap;
}
}
#endif
+#if defined(FEAT_EVAL) || defined(PROTO)
+
+/*
+ * "mode()" function
+ */
+ void
+f_mode(typval_T *argvars, typval_T *rettv)
+{
+ char_u buf[4];
+
+ vim_memset(buf, 0, sizeof(buf));
+
+ if (time_for_testing == 93784)
+ {
+ /* Testing the two-character code. */
+ buf[0] = 'x';
+ buf[1] = '!';
+ }
+#ifdef FEAT_TERMINAL
+ else if (term_use_loop())
+ buf[0] = 't';
+#endif
+ else if (VIsual_active)
+ {
+ if (VIsual_select)
+ buf[0] = VIsual_mode + 's' - 'v';
+ else
+ buf[0] = VIsual_mode;
+ }
+ else if (State == HITRETURN || State == ASKMORE || State == SETWSIZE
+ || State == CONFIRM)
+ {
+ buf[0] = 'r';
+ if (State == ASKMORE)
+ buf[1] = 'm';
+ else if (State == CONFIRM)
+ buf[1] = '?';
+ }
+ else if (State == EXTERNCMD)
+ buf[0] = '!';
+ else if (State & INSERT)
+ {
+ if (State & VREPLACE_FLAG)
+ {
+ buf[0] = 'R';
+ buf[1] = 'v';
+ }
+ else
+ {
+ if (State & REPLACE_FLAG)
+ buf[0] = 'R';
+ else
+ buf[0] = 'i';
+ if (ins_compl_active())
+ buf[1] = 'c';
+ else if (ctrl_x_mode_not_defined_yet())
+ buf[1] = 'x';
+ }
+ }
+ else if ((State & CMDLINE) || exmode_active)
+ {
+ buf[0] = 'c';
+ if (exmode_active == EXMODE_VIM)
+ buf[1] = 'v';
+ else if (exmode_active == EXMODE_NORMAL)
+ buf[1] = 'e';
+ }
+ else
+ {
+ buf[0] = 'n';
+ if (finish_op)
+ {
+ buf[1] = 'o';
+ // to be able to detect force-linewise/blockwise/characterwise operations
+ buf[2] = motion_force;
+ }
+ else if (restart_edit == 'I' || restart_edit == 'R'
+ || restart_edit == 'V')
+ {
+ buf[1] = 'i';
+ buf[2] = restart_edit;
+ }
+ }
+
+ /* Clear out the minor mode when the argument is not a non-zero number or
+ * non-empty string. */
+ if (!non_zero_arg(&argvars[0]))
+ buf[1] = NUL;
+
+ rettv->vval.v_string = vim_strsave(buf);
+ rettv->v_type = VAR_STRING;
+}
+
+ static void
+may_add_state_char(garray_T *gap, char_u *include, int c)
+{
+ if (include == NULL || vim_strchr(include, c) != NULL)
+ ga_append(gap, c);
+}
+
+/*
+ * "state()" function
+ */
+ void
+f_state(typval_T *argvars, typval_T *rettv)
+{
+ garray_T ga;
+ char_u *include = NULL;
+ int i;
+
+ ga_init2(&ga, 1, 20);
+ if (argvars[0].v_type != VAR_UNKNOWN)
+ include = tv_get_string(&argvars[0]);
+
+ if (!(stuff_empty() && typebuf.tb_len == 0 && scriptin[curscript] == NULL))
+ may_add_state_char(&ga, include, 'm');
+ if (op_pending())
+ may_add_state_char(&ga, include, 'o');
+ if (autocmd_busy)
+ may_add_state_char(&ga, include, 'x');
+ if (!ctrl_x_mode_none())
+ may_add_state_char(&ga, include, 'a');
+
+# ifdef FEAT_JOB_CHANNEL
+ if (channel_in_blocking_wait())
+ may_add_state_char(&ga, include, 'w');
+# endif
+ for (i = 0; i < get_callback_depth() && i < 3; ++i)
+ may_add_state_char(&ga, include, 'c');
+ if (msg_scrolled > 0)
+ may_add_state_char(&ga, include, 's');
+
+ rettv->v_type = VAR_STRING;
+ rettv->vval.v_string = ga.ga_data;
+}
+
+#endif // FEAT_EVAL
+
/*
* Get a key stroke directly from the user.
* Ignores mouse clicks and scrollbar events, except a click for the left
void channel_close(channel_T *channel, int invoke_close_cb);
void channel_clear(channel_T *channel);
void channel_free_all(void);
+int channel_in_blocking_wait(void);
void channel_handle_events(int only_keep_open);
int channel_any_keep_open(void);
void channel_set_nonblock(channel_T *channel, ch_part_T part);
int has_internal_func(char_u *name);
int call_internal_func(char_u *name, int argcount, typval_T *argvars, typval_T *rettv);
int call_internal_method(char_u *name, int argcount, typval_T *argvars, typval_T *rettv, typval_T *basetv);
+int non_zero_arg(typval_T *argvars);
linenr_T tv_get_lnum(typval_T *argvars);
linenr_T tv_get_lnum_buf(typval_T *argvars, buf_T *buf);
-buf_T *buflist_find_by_name(char_u *name, int curtab_only);
buf_T *tv_get_buf(typval_T *tv, int curtab_only);
buf_T *get_buf_arg(typval_T *arg);
win_T *get_optional_window(typval_T *argvars, int idx);
int vim_main2(void);
void common_init(mparm_T *paramp);
int is_not_a_term(void);
+int op_pending(void);
void may_trigger_safestate(int safe);
void state_no_longer_safe(void);
void leave_unsafe_state(void);
void check_status(buf_T *buf);
int ask_yesno(char_u *str, int direct);
int is_mouse_key(int c);
+void f_mode(typval_T *argvars, typval_T *rettv);
+void f_state(typval_T *argvars, typval_T *rettv);
int get_keystroke(void);
int get_number(int colon, int *mouse_used);
int prompt_for_number(int *mouse_used);
funccall_T *get_current_funccal(void);
void free_all_functions(void);
int func_call(char_u *name, typval_T *args, partial_T *partial, dict_T *selfdict, typval_T *rettv);
+int get_callback_depth(void);
int call_callback(callback_T *callback, int len, typval_T *rettv, int argcount, typval_T *argvars);
int call_func(char_u *funcname, int len, typval_T *rettv, int argcount_in, typval_T *argvars_in, funcexe_T *funcexe);
char_u *trans_function_name(char_u **pp, int skip, int flags, funcdict_T *fdp, partial_T **partial);
return r;
}
+static int callback_depth = 0;
+
+ int
+get_callback_depth(void)
+{
+ return callback_depth;
+}
+
/*
* Invoke call_func() with a callback.
*/
// PLUS ONE elements!
{
funcexe_T funcexe;
+ int ret;
vim_memset(&funcexe, 0, sizeof(funcexe));
funcexe.evaluate = TRUE;
funcexe.partial = callback->cb_partial;
- return call_func(callback->cb_name, len, rettv, argcount, argvars,
- &funcexe);
+ ++callback_depth;
+ ret = call_func(callback->cb_name, len, rettv, argcount, argvars, &funcexe);
+ --callback_depth;
+ return ret;
}
/*
static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 2047,
/**/
2046,
/**/
projects / vim / commitdiff