diff options
Diffstat (limited to 'src/nvim/autocmd.c')
| -rw-r--r-- | src/nvim/autocmd.c | 1347 |
1 files changed, 947 insertions, 400 deletions
diff --git a/src/nvim/autocmd.c b/src/nvim/autocmd.c index 9117dde089..a9e1978ac0 100644 --- a/src/nvim/autocmd.c +++ b/src/nvim/autocmd.c @@ -2,10 +2,15 @@ // it. PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com // autocmd.c: Autocommand related functions +#include <signal.h> +#include "nvim/autocmd.h" + +// #include "nvim/api/private/handle.h" + +#include "lauxlib.h" #include "nvim/api/private/helpers.h" #include "nvim/ascii.h" -#include "nvim/autocmd.h" #include "nvim/buffer.h" #include "nvim/charset.h" #include "nvim/cursor.h" @@ -13,8 +18,11 @@ #include "nvim/eval.h" #include "nvim/eval/userfunc.h" #include "nvim/ex_docmd.h" +#include "nvim/ex_getln.h" #include "nvim/fileio.h" #include "nvim/getchar.h" +#include "nvim/lua/executor.h" +#include "nvim/map.h" #include "nvim/option.h" #include "nvim/os/input.h" #include "nvim/regexp.h" @@ -28,6 +36,14 @@ # include "autocmd.c.generated.h" #endif +// Naming Conventions: +// - general autocmd behavior start with au_ +// - AutoCmd start with aucmd_ +// - Autocmd.exec stat with aucmd_exec +// - AutoPat start with aupat_ +// - Groups start with augroup_ +// - Events start with event_ + // // The autocommands are stored in a list for each event. // Autocommands for the same pattern, that are consecutive, are joined @@ -67,21 +83,20 @@ // Code for automatic commands. static AutoPatCmd *active_apc_list = NULL; // stack of active autocommands -/// List of autocmd group names -static garray_T augroups = { 0, 0, sizeof(char_u *), 10, NULL }; -#define AUGROUP_NAME(i) (((char **)augroups.ga_data)[i]) -#define BUFLOCAL_PAT_LEN 25 +// ID for associating autocmds created via nvim_create_autocmd +// Used to delete autocmds from nvim_del_autocmd +static int next_augroup_id = 1; // use get_deleted_augroup() to get this static const char *deleted_augroup = NULL; -// The ID of the current group. Group 0 is the default one. +// The ID of the current group. static int current_augroup = AUGROUP_DEFAULT; -static int au_need_clean = false; // need to delete marked patterns +// Whether we need to delete marked patterns. +// While deleting autocmds, they aren't actually remover, just marked. +static int au_need_clean = false; -static event_T last_event; -static int last_group; static int autocmd_blocked = 0; // block all autocmds static bool autocmd_nested = false; @@ -89,6 +104,33 @@ static bool autocmd_include_groups = false; static char_u *old_termresponse = NULL; +/// Iterates over all the AutoPats for a particular event +#define FOR_ALL_AUPATS_IN_EVENT(event, ap) \ + for (AutoPat *ap = first_autopat[event]; ap != NULL; ap = ap->next) // NOLINT + +/// Handles grabbing arguments from `:autocmd` such as ++once and ++nested +#define ARG_GET_FLAG(errored, cmd, flag, pattern, len) \ + if (STRNCMP(cmd, pattern, len) == 0 && ascii_iswhite((cmd)[len])) { \ + if (flag) { \ + semsg(_(e_duparg2), pattern); \ + (errored) = true; \ + } \ + (flag) = true; \ + (cmd) = skipwhite((cmd) + (len)); \ + } + +// Map of autocmd group names. +// name -> ID +static Map(String, int) augroup_map = MAP_INIT; + +static void augroup_map_del(char *name) +{ + String key = map_key(String, int)(&augroup_map, cstr_as_string(name)); + map_del(String, int)(&augroup_map, key); + api_free_string(key); +} + + static inline const char *get_deleted_augroup(void) FUNC_ATTR_ALWAYS_INLINE { if (deleted_augroup == NULL) { @@ -98,7 +140,7 @@ static inline const char *get_deleted_augroup(void) FUNC_ATTR_ALWAYS_INLINE } // Show the autocommands for one AutoPat. -static void show_autocmd(AutoPat *ap, event_T event) +static void aupat_show(AutoPat *ap) { AutoCmd *ac; @@ -107,39 +149,21 @@ static void show_autocmd(AutoPat *ap, event_T event) if (got_int) { return; } + // pattern has been removed if (ap->pat == NULL) { return; } - msg_putchar('\n'); - if (got_int) { - return; - } - if (event != last_event || ap->group != last_group) { - if (ap->group != AUGROUP_DEFAULT) { - if (AUGROUP_NAME(ap->group) == NULL) { - msg_puts_attr(get_deleted_augroup(), HL_ATTR(HLF_E)); - } else { - msg_puts_attr(AUGROUP_NAME(ap->group), HL_ATTR(HLF_T)); - } - msg_puts(" "); - } - msg_puts_attr(event_nr2name(event), HL_ATTR(HLF_T)); - last_event = event; - last_group = ap->group; - msg_putchar('\n'); - if (got_int) { - return; - } - } msg_col = 4; msg_outtrans(ap->pat); for (ac = ap->cmds; ac != NULL; ac = ac->next) { - if (ac->cmd == NULL) { // skip removed commands + // skip removed commands + if (aucmd_exec_is_deleted(ac->exec)) { continue; } + if (msg_col >= 14) { msg_putchar('\n'); } @@ -147,7 +171,7 @@ static void show_autocmd(AutoPat *ap, event_T event) if (got_int) { return; } - msg_outtrans(ac->cmd); + msg_outtrans((char_u *)aucmd_exec_to_string(ac, ac->exec)); if (p_verbose > 0) { last_set_msg(ac->script_ctx); } @@ -163,27 +187,96 @@ static void show_autocmd(AutoPat *ap, event_T event) } } +static void au_show_for_all_events(int group) +{ + FOR_ALL_AUEVENTS(event) { + au_show_for_event(group, event); + } +} + +static void au_show_for_event(int group, event_T event) +{ + // Return early if there are no autocmds for this event + if (au_event_is_empty(event)) { + return; + } + + int previous_group = AUGROUP_ERROR; + FOR_ALL_AUPATS_IN_EVENT(event, ap) { + if (group != AUGROUP_ALL && group != ap->group) { + continue; + } + + char *name = augroup_name(ap->group); + + msg_putchar('\n'); + // When switching groups, we need to show the new group information. + if (ap->group != previous_group) { + // show the group name, if it's not the default group + if (ap->group != AUGROUP_DEFAULT) { + if (name == NULL) { + msg_puts_attr(get_deleted_augroup(), HL_ATTR(HLF_E)); + } else { + msg_puts_attr(name, HL_ATTR(HLF_T)); + } + msg_puts(" "); + } + + // show the event name + msg_puts_attr(event_nr2name(event), HL_ATTR(HLF_T)); + msg_putchar('\n'); + } + + if (got_int) { + return; + } + + aupat_show(ap); + + previous_group = ap->group; + } +} + // Mark an autocommand handler for deletion. -static void au_remove_pat(AutoPat *ap) +static void aupat_del(AutoPat *ap) { XFREE_CLEAR(ap->pat); ap->buflocal_nr = -1; au_need_clean = true; } +void aupat_del_for_event_and_group(event_T event, int group) +{ + FOR_ALL_AUPATS_IN_EVENT(event, ap) { + if (ap->group == group) { + aupat_del(ap); + } + } + + au_need_clean = true; + au_cleanup(); // may really delete removed patterns/commands now +} + // Mark all commands for a pattern for deletion. -static void au_remove_cmds(AutoPat *ap) +static void aupat_remove_cmds(AutoPat *ap) { for (AutoCmd *ac = ap->cmds; ac != NULL; ac = ac->next) { - XFREE_CLEAR(ac->cmd); + aucmd_exec_free(&ac->exec); + + if (ac->desc != NULL) { + XFREE_CLEAR(ac->desc); + } } au_need_clean = true; } // Delete one command from an autocmd pattern. -static void au_del_cmd(AutoCmd *ac) +static void aucmd_del(AutoCmd *ac) { - XFREE_CLEAR(ac->cmd); + aucmd_exec_free(&ac->exec); + if (ac->desc != NULL) { + XFREE_CLEAR(ac->desc); + } au_need_clean = true; } @@ -191,16 +284,15 @@ static void au_del_cmd(AutoCmd *ac) /// This is only done when not executing autocommands. static void au_cleanup(void) { - AutoPat *ap, **prev_ap; - event_T event; + AutoPat *ap; + AutoPat **prev_ap; if (autocmd_busy || !au_need_clean) { return; } // Loop over all events. - for (event = (event_T)0; (int)event < NUM_EVENTS; - event = (event_T)((int)event + 1)) { + FOR_ALL_AUEVENTS(event) { // Loop over all autocommand patterns. prev_ap = &(first_autopat[(int)event]); for (ap = *prev_ap; ap != NULL; ap = *prev_ap) { @@ -211,9 +303,13 @@ static void au_cleanup(void) for (AutoCmd *ac = *prev_ac; ac != NULL; ac = *prev_ac) { // Remove the command if the pattern is to be deleted or when // the command has been marked for deletion. - if (ap->pat == NULL || ac->cmd == NULL) { + if (ap->pat == NULL || aucmd_exec_is_deleted(ac->exec)) { *prev_ac = ac->next; - xfree(ac->cmd); + aucmd_exec_free(&ac->exec); + if (ac->desc != NULL) { + XFREE_CLEAR(ac->desc); + } + xfree(ac); } else { has_cmd = true; @@ -224,7 +320,7 @@ static void au_cleanup(void) if (ap->pat != NULL && !has_cmd) { // Pattern was not marked for deletion, but all of its commands were. // So mark the pattern for deletion. - au_remove_pat(ap); + aupat_del(ap); } // Remove the pattern if it has been marked for deletion. @@ -250,12 +346,17 @@ static void au_cleanup(void) au_need_clean = false; } + +// Get the first AutoPat for a particular event. +AutoPat *au_get_autopat_for_event(event_T event) +{ + return first_autopat[(int)event]; +} + // Called when buffer is freed, to remove/invalidate related buffer-local // autocmds. void aubuflocal_remove(buf_T *buf) { - AutoPat *ap; - event_T event; AutoPatCmd *apc; // invalidate currently executing autocommands @@ -266,12 +367,11 @@ void aubuflocal_remove(buf_T *buf) } // invalidate buflocals looping through events - for (event = (event_T)0; (int)event < NUM_EVENTS; - event = (event_T)((int)event + 1)) { - // loop over all autocommand patterns - for (ap = first_autopat[(int)event]; ap != NULL; ap = ap->next) { + FOR_ALL_AUEVENTS(event) { + FOR_ALL_AUPATS_IN_EVENT(event, ap) { if (ap->buflocal_nr == buf->b_fnum) { - au_remove_pat(ap); + aupat_del(ap); + if (p_verbose >= 6) { verbose_enter(); smsg(_("auto-removing autocommand: %s <buffer=%d>"), @@ -284,60 +384,61 @@ void aubuflocal_remove(buf_T *buf) au_cleanup(); } -// Add an autocmd group name. +// Add an autocmd group name or return existing group matching name. // Return its ID. -static int au_new_group(char_u *name) +int augroup_add(char *name) { - int i = au_find_group(name); - if (i == AUGROUP_ERROR) { // the group doesn't exist yet, add it. - // First try using a free entry. - for (i = 0; i < augroups.ga_len; i++) { - if (AUGROUP_NAME(i) == NULL) { - break; - } - } - if (i == augroups.ga_len) { - ga_grow(&augroups, 1); - } + assert(STRICMP(name, "end") != 0); - AUGROUP_NAME(i) = xstrdup((char *)name); - if (i == augroups.ga_len) { - augroups.ga_len++; - } + int existing_id = augroup_find(name); + if (existing_id > 0) { + assert(existing_id != AUGROUP_DELETED); + return existing_id; } - return i; + if (existing_id == AUGROUP_DELETED) { + augroup_map_del(name); + } + + int next_id = next_augroup_id++; + String name_copy = cstr_to_string(name); + map_put(String, int)(&augroup_map, name_copy, next_id); + + return next_id; } -static void au_del_group(char_u *name) +/// Delete the augroup that matches name. +void augroup_del(char *name, bool stupid_legacy_mode) { - int i = au_find_group(name); + int i = augroup_find(name); if (i == AUGROUP_ERROR) { // the group doesn't exist semsg(_("E367: No such group: \"%s\""), name); } else if (i == current_augroup) { emsg(_("E936: Cannot delete the current group")); } else { - event_T event; - AutoPat *ap; - int in_use = false; - - for (event = (event_T)0; (int)event < NUM_EVENTS; - event = (event_T)((int)event + 1)) { - for (ap = first_autopat[(int)event]; ap != NULL; ap = ap->next) { - if (ap->group == i && ap->pat != NULL) { - give_warning((char_u *)_("W19: Deleting augroup that is still in use"), true); - in_use = true; - event = NUM_EVENTS; - break; + if (stupid_legacy_mode) { + FOR_ALL_AUEVENTS(event) { + FOR_ALL_AUPATS_IN_EVENT(event, ap) { + if (ap->group == i && ap->pat != NULL) { + give_warning((char_u *)_("W19: Deleting augroup that is still in use"), true); + map_put(String, int)(&augroup_map, cstr_as_string(name), AUGROUP_DELETED); + return; + } } } - } - xfree(AUGROUP_NAME(i)); - if (in_use) { - AUGROUP_NAME(i) = (char *)get_deleted_augroup(); } else { - AUGROUP_NAME(i) = NULL; + FOR_ALL_AUEVENTS(event) { + FOR_ALL_AUPATS_IN_EVENT(event, ap) { + if (ap->group == i) { + aupat_del(ap); + } + } + } } + + // Remove the group because it's not currently in use. + augroup_map_del(name); + au_cleanup(); } } @@ -346,25 +447,70 @@ static void au_del_group(char_u *name) /// @param name augroup name /// /// @return the ID or AUGROUP_ERROR (< 0) for error. -static int au_find_group(const char_u *name) +int augroup_find(const char *name) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { - for (int i = 0; i < augroups.ga_len; i++) { - if (AUGROUP_NAME(i) != NULL && AUGROUP_NAME(i) != get_deleted_augroup() - && STRCMP(AUGROUP_NAME(i), name) == 0) { - return i; - } + int existing_id = map_get(String, int)(&augroup_map, cstr_as_string((char *)name)); + if (existing_id == AUGROUP_DELETED) { + return existing_id; + } + + if (existing_id > 0) { + return existing_id; } + return AUGROUP_ERROR; } +/// Gets the name for a particular group. +char *augroup_name(int group) +{ + assert(group != 0); + + if (group == AUGROUP_DELETED) { + return (char *)get_deleted_augroup(); + } + + if (group == AUGROUP_ALL) { + group = current_augroup; + } + + // next_augroup_id is the "source of truth" about what autocmds have existed + // + // The map_size is not the source of truth because groups can be removed from + // the map. When this happens, the map size is reduced. That's why this function + // relies on next_augroup_id instead. + + // "END" is always considered the last augroup ID. + // Used for expand_get_event_name and expand_get_augroup_name + if (group == next_augroup_id) { + return "END"; + } + + // If it's larger than the largest group, then it doesn't have a name + if (group > next_augroup_id) { + return NULL; + } + + String key; + int value; + map_foreach(&augroup_map, key, value, { + if (value == group) { + return key.data; + } + }); + + // If it's not in the map anymore, then it must have been deleted. + return (char *)get_deleted_augroup(); +} + /// Return true if augroup "name" exists. /// /// @param name augroup name -bool au_has_group(const char_u *name) +bool augroup_exists(const char *name) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT { - return au_find_group(name) != AUGROUP_ERROR; + return augroup_find(name) > 0; } /// ":augroup {name}". @@ -374,20 +520,27 @@ void do_augroup(char_u *arg, int del_group) if (*arg == NUL) { emsg(_(e_argreq)); } else { - au_del_group(arg); + augroup_del((char *)arg, true); } } else if (STRICMP(arg, "end") == 0) { // ":aug end": back to group 0 current_augroup = AUGROUP_DEFAULT; } else if (*arg) { // ":aug xxx": switch to group xxx - current_augroup = au_new_group(arg); + current_augroup = augroup_add((char *)arg); } else { // ":aug": list the group names msg_start(); - for (int i = 0; i < augroups.ga_len; i++) { - if (AUGROUP_NAME(i) != NULL) { - msg_puts(AUGROUP_NAME(i)); - msg_puts(" "); + + String name; + int value; + map_foreach(&augroup_map, name, value, { + if (value > 0) { + msg_puts(name.data); + } else { + msg_puts(augroup_name(value)); } - } + + msg_puts(" "); + }); + msg_clr_eos(); msg_end(); } @@ -396,25 +549,30 @@ void do_augroup(char_u *arg, int del_group) #if defined(EXITFREE) void free_all_autocmds(void) { - for (current_augroup = -1; current_augroup < augroups.ga_len; - current_augroup++) { - do_autocmd((char_u *)"", true); - } - - for (int i = 0; i < augroups.ga_len; i++) { - char *const s = ((char **)(augroups.ga_data))[i]; - if ((const char *)s != get_deleted_augroup()) { - xfree(s); + FOR_ALL_AUEVENTS(event) { + FOR_ALL_AUPATS_IN_EVENT(event, ap) { + aupat_del(ap); } } - ga_clear(&augroups); + + au_need_clean = true; + au_cleanup(); // may really delete removed patterns/commands now + + // Delete the augroup_map, including free the data + String name; + int id; + map_foreach(&augroup_map, name, id, { + (void)id; + api_free_string(name); + }) + map_destroy(String, int)(&augroup_map); } #endif // Return the event number for event name "start". // Return NUM_EVENTS if the event name was not found. // Return a pointer to the next event name in "end". -static event_T event_name2nr(const char_u *start, char_u **end) +event_T event_name2nr(const char_u *start, char_u **end) { const char_u *p; int i; @@ -457,33 +615,6 @@ static const char *event_nr2name(event_T event) return "Unknown"; } -/// Scan over the events. "*" stands for all events. -/// true when group name was found -static char_u *find_end_event(char_u *arg, int have_group) -{ - char_u *pat; - char_u *p; - - if (*arg == '*') { - if (arg[1] && !ascii_iswhite(arg[1])) { - semsg(_("E215: Illegal character after *: %s"), arg); - return NULL; - } - pat = arg + 1; - } else { - for (pat = arg; *pat && *pat != '|' && !ascii_iswhite(*pat); pat = p) { - if ((int)event_name2nr(pat, &p) >= NUM_EVENTS) { - if (have_group) { - semsg(_("E216: No such event: %s"), pat); - } else { - semsg(_("E216: No such group or event: %s"), pat); - } - return NULL; - } - } - } - return pat; -} /// Return true if "event" is included in 'eventignore'. /// @@ -601,12 +732,12 @@ void do_autocmd(char_u *arg_in, int forceit) group = AUGROUP_ALL; // no argument, use all groups } else { // Check for a legal group name. If not, use AUGROUP_ALL. - group = au_get_grouparg(&arg); + group = arg_augroup_get(&arg); } // Scan over the events. // If we find an illegal name, return here, don't do anything. - pat = find_end_event(arg, group != AUGROUP_ALL); + pat = arg_event_skip(arg, group != AUGROUP_ALL); if (pat == NULL) { return; } @@ -643,37 +774,22 @@ void do_autocmd(char_u *arg_in, int forceit) } cmd = skipwhite(cmd); + + bool invalid_flags = false; for (size_t i = 0; i < 2; i++) { if (*cmd != NUL) { - // Check for "++once" flag. - if (STRNCMP(cmd, "++once", 6) == 0 && ascii_iswhite(cmd[6])) { - if (once) { - semsg(_(e_duparg2), "++once"); - } - once = true; - cmd = skipwhite(cmd + 6); - } + ARG_GET_FLAG(invalid_flags, cmd, once, "++once", 6); + ARG_GET_FLAG(invalid_flags, cmd, nested, "++nested", 8); - // Check for "++nested" flag. - if ((STRNCMP(cmd, "++nested", 8) == 0 && ascii_iswhite(cmd[8]))) { - if (nested) { - semsg(_(e_duparg2), "++nested"); - } - nested = true; - cmd = skipwhite(cmd + 8); - } - - // Check for the old (deprecated) "nested" flag. - if (STRNCMP(cmd, "nested", 6) == 0 && ascii_iswhite(cmd[6])) { - if (nested) { - semsg(_(e_duparg2), "nested"); - } - nested = true; - cmd = skipwhite(cmd + 6); - } + // Check the deprecated "nested" flag. + ARG_GET_FLAG(invalid_flags, cmd, nested, "nested", 6); } } + if (invalid_flags) { + return; + } + // Find the start of the commands. // Expand <sfile> in it. if (*cmd != NUL) { @@ -685,36 +801,37 @@ void do_autocmd(char_u *arg_in, int forceit) } } + bool is_showing = !forceit && *cmd == NUL; + // Print header when showing autocommands. - if (!forceit && *cmd == NUL) { + if (is_showing) { // Highlight title msg_puts_title(_("\n--- Autocommands ---")); - } - // Loop over the events. - last_event = (event_T)-1; // for listing the event name - last_group = AUGROUP_ERROR; // for listing the group name - if (*arg == '*' || *arg == NUL || *arg == '|') { - if (!forceit && *cmd != NUL) { - emsg(_(e_cannot_define_autocommands_for_all_events)); + if (*arg == '*' || *arg == '|' || *arg == NUL) { + au_show_for_all_events(group); } else { - for (event_T event = (event_T)0; event < NUM_EVENTS; - event = (event_T)(event + 1)) { + event_T event = event_name2nr(arg, &arg); + assert(event < NUM_EVENTS); + au_show_for_event(group, event); + } + } else { + if (*arg == '*' || *arg == NUL || *arg == '|') { + if (!forceit && *cmd != NUL) { + emsg(_(e_cannot_define_autocommands_for_all_events)); + } else { + do_all_autocmd_events(pat, once, nested, cmd, forceit, group); + } + } else { + while (*arg && *arg != '|' && !ascii_iswhite(*arg)) { + event_T event = event_name2nr(arg, &arg); + assert(event < NUM_EVENTS); if (do_autocmd_event(event, pat, once, nested, cmd, forceit, group) == FAIL) { break; } } } - } else { - while (*arg && *arg != '|' && !ascii_iswhite(*arg)) { - event_T event = event_name2nr(arg, &arg); - assert(event < NUM_EVENTS); - if (do_autocmd_event(event, pat, once, nested, cmd, forceit, group) - == FAIL) { - break; - } - } } if (need_free) { @@ -723,30 +840,14 @@ void do_autocmd(char_u *arg_in, int forceit) xfree(envpat); } -// Find the group ID in a ":autocmd" or ":doautocmd" argument. -// The "argp" argument is advanced to the following argument. -// -// Returns the group ID or AUGROUP_ALL. -static int au_get_grouparg(char_u **argp) +void do_all_autocmd_events(char_u *pat, bool once, int nested, char_u *cmd, bool delete, int group) { - char_u *group_name; - char_u *p; - char_u *arg = *argp; - int group = AUGROUP_ALL; - - for (p = arg; *p && !ascii_iswhite(*p) && *p != '|'; p++) { - } - if (p > arg) { - group_name = vim_strnsave(arg, (size_t)(p - arg)); - group = au_find_group(group_name); - if (group == AUGROUP_ERROR) { - group = AUGROUP_ALL; // no match, use all groups - } else { - *argp = skipwhite(p); // match, skip over group name + FOR_ALL_AUEVENTS(event) { + if (do_autocmd_event(event, pat, once, nested, cmd, delete, group) + == FAIL) { + return; } - xfree(group_name); } - return group; } // do_autocmd() for one event. @@ -756,216 +857,293 @@ static int au_get_grouparg(char_u **argp) // If *cmd == NUL: show entries. // If forceit == true: delete entries. // If group is not AUGROUP_ALL: only use this group. -static int do_autocmd_event(event_T event, char_u *pat, bool once, int nested, char_u *cmd, - int forceit, int group) +int do_autocmd_event(event_T event, char_u *pat, bool once, int nested, char_u *cmd, bool delete, + int group) + FUNC_ATTR_NONNULL_ALL { + // Cannot be used to show all patterns. See au_show_for_event or au_show_for_all_events + assert(*pat != NUL || delete); + AutoPat *ap; AutoPat **prev_ap; - AutoCmd *ac; - AutoCmd **prev_ac; - int brace_level; - char_u *endpat; int findgroup; - int allgroups; int patlen; int is_buflocal; int buflocal_nr; char_u buflocal_pat[BUFLOCAL_PAT_LEN]; // for "<buffer=X>" + bool is_adding_cmd = *cmd != NUL; + if (group == AUGROUP_ALL) { findgroup = current_augroup; } else { findgroup = group; } - allgroups = (group == AUGROUP_ALL && !forceit && *cmd == NUL); - // Show or delete all patterns for an event. - if (*pat == NUL) { - for (ap = first_autopat[event]; ap != NULL; ap = ap->next) { - if (forceit) { // delete the AutoPat, if it's in the current group - if (ap->group == findgroup) { - au_remove_pat(ap); - } - } else if (group == AUGROUP_ALL || ap->group == group) { - show_autocmd(ap, event); - } - } + // Delete all aupat for an event. + if (*pat == NUL && delete) { + aupat_del_for_event_and_group(event, findgroup); + return OK; } // Loop through all the specified patterns. - for (; *pat; pat = (*endpat == ',' ? endpat + 1 : endpat)) { - // Find end of the pattern. - // Watch out for a comma in braces, like "*.\{obj,o\}". - endpat = pat; - // ignore single comma - if (*endpat == ',') { - continue; - } - brace_level = 0; - for (; *endpat && (*endpat != ',' || brace_level || endpat[-1] == '\\'); - endpat++) { - if (*endpat == '{') { - brace_level++; - } else if (*endpat == '}') { - brace_level--; - } - } - patlen = (int)(endpat - pat); - - // detect special <buflocal[=X]> buffer-local patterns - is_buflocal = false; + patlen = (int)aucmd_pattern_length(pat); + while (patlen) { + // detect special <buffer[=X]> buffer-local patterns + is_buflocal = aupat_is_buflocal(pat, patlen); buflocal_nr = 0; - if (patlen >= 8 && STRNCMP(pat, "<buffer", 7) == 0 - && pat[patlen - 1] == '>') { - // "<buffer...>": Error will be printed only for addition. - // printing and removing will proceed silently. - is_buflocal = true; - if (patlen == 8) { - // "<buffer>" - buflocal_nr = curbuf->b_fnum; - } else if (patlen > 9 && pat[7] == '=') { - if (patlen == 13 && STRNICMP(pat, "<buffer=abuf>", 13) == 0) { - // "<buffer=abuf>" - buflocal_nr = autocmd_bufnr; - } else if (skipdigits(pat + 8) == pat + patlen - 1) { - // "<buffer=123>" - buflocal_nr = atoi((char *)pat + 8); - } - } - } - if (is_buflocal) { + buflocal_nr = aupat_get_buflocal_nr(pat, patlen); + // normalize pat into standard "<buffer>#N" form - snprintf((char *)buflocal_pat, - BUFLOCAL_PAT_LEN, - "<buffer=%d>", - buflocal_nr); + aupat_normalize_buflocal_pat(buflocal_pat, pat, patlen, buflocal_nr); - pat = buflocal_pat; // can modify pat and patlen - patlen = (int)STRLEN(buflocal_pat); // but not endpat + pat = buflocal_pat; + patlen = (int)STRLEN(buflocal_pat); } - // Find AutoPat entries with this pattern. When adding a command it - // always goes at or after the last one, so start at the end. - if (!forceit && *cmd != NUL && last_autopat[(int)event] != NULL) { - prev_ap = &last_autopat[(int)event]; - } else { + if (delete) { + assert(*pat != NUL); + + // Find AutoPat entries with this pattern. + // always goes at or after the last one, so start at the end. prev_ap = &first_autopat[(int)event]; - } - while ((ap = *prev_ap) != NULL) { - if (ap->pat != NULL) { - // Accept a pattern when: - // - a group was specified and it's that group, or a group was - // not specified and it's the current group, or a group was - // not specified and we are listing - // - the length of the pattern matches - // - the pattern matches. - // For <buffer[=X]>, this condition works because we normalize - // all buffer-local patterns. - if ((allgroups || ap->group == findgroup) && ap->patlen == patlen - && STRNCMP(pat, ap->pat, patlen) == 0) { - // Remove existing autocommands. - // If adding any new autocmd's for this AutoPat, don't - // delete the pattern from the autopat list, append to - // this list. - if (forceit) { - if (*cmd != NUL && ap->next == NULL) { - au_remove_cmds(ap); + while ((ap = *prev_ap) != NULL) { + if (ap->pat != NULL) { + // Accept a pattern when: + // - a group was specified and it's that group + // - the length of the pattern matches + // - the pattern matches. + // For <buffer[=X]>, this condition works because we normalize + // all buffer-local patterns. + if (ap->group == findgroup + && ap->patlen == patlen + && STRNCMP(pat, ap->pat, patlen) == 0) { + // Remove existing autocommands. + // If adding any new autocmd's for this AutoPat, don't + // delete the pattern from the autopat list, append to + // this list. + if (is_adding_cmd && ap->next == NULL) { + aupat_remove_cmds(ap); break; } - au_remove_pat(ap); - } else if (*cmd == NUL) { - // Show autocmd's for this autopat, or buflocals <buffer=X> - show_autocmd(ap, event); - } else if (ap->next == NULL) { - // Add autocmd to this autopat, if it's the last one. - break; + aupat_del(ap); } } + prev_ap = &ap->next; } - prev_ap = &ap->next; } - // Add a new command. - if (*cmd != NUL) { - // If the pattern we want to add a command to does appear at the - // end of the list (or not is not in the list at all), add the - // pattern at the end of the list. - if (ap == NULL) { - // refuse to add buffer-local ap if buffer number is invalid - if (is_buflocal - && (buflocal_nr == 0 || buflist_findnr(buflocal_nr) == NULL)) { - semsg(_("E680: <buffer=%d>: invalid buffer number "), buflocal_nr); - return FAIL; - } + if (is_adding_cmd) { + AucmdExecutable exec = AUCMD_EXECUTABLE_INIT; + exec.type = CALLABLE_EX; + exec.callable.cmd = cmd; + autocmd_register(0, event, pat, patlen, group, once, nested, NULL, exec); + } - ap = xmalloc(sizeof(AutoPat)); - ap->pat = vim_strnsave(pat, (size_t)patlen); - ap->patlen = patlen; + pat = aucmd_next_pattern(pat, (size_t)patlen); + patlen = (int)aucmd_pattern_length(pat); + } - if (is_buflocal) { - ap->buflocal_nr = buflocal_nr; - ap->reg_prog = NULL; - } else { - char_u *reg_pat; + au_cleanup(); + return OK; +} - ap->buflocal_nr = 0; - reg_pat = file_pat_to_reg_pat(pat, endpat, &ap->allow_dirs, true); - if (reg_pat != NULL) { - ap->reg_prog = vim_regcomp(reg_pat, RE_MAGIC); - } - xfree(reg_pat); - if (reg_pat == NULL || ap->reg_prog == NULL) { - xfree(ap->pat); - xfree(ap); - return FAIL; - } - } +int autocmd_register(int64_t id, event_T event, char_u *pat, int patlen, int group, bool once, + bool nested, char *desc, AucmdExecutable aucmd) +{ + // 0 is not a valid group. + assert(group != 0); - // need to initialize last_mode for the first ModeChanged autocmd - if (event == EVENT_MODECHANGED && !has_event(EVENT_MODECHANGED)) { - xfree(last_mode); - last_mode = get_mode(); - } + AutoPat *ap; + AutoPat **prev_ap; + AutoCmd *ac; + AutoCmd **prev_ac; + int is_buflocal; + int buflocal_nr; + int findgroup; + char_u buflocal_pat[BUFLOCAL_PAT_LEN]; // for "<buffer=X>" - // If the event is CursorMoved, update the last cursor position - // position to avoid immediately triggering the autocommand - if (event == EVENT_CURSORMOVED && !has_event(EVENT_CURSORMOVED)) { - curwin->w_last_cursormoved = curwin->w_cursor; - } + if (patlen > (int)STRLEN(pat)) { + return FAIL; + } - ap->cmds = NULL; - *prev_ap = ap; - last_autopat[(int)event] = ap; - ap->next = NULL; - if (group == AUGROUP_ALL) { - ap->group = current_augroup; - } else { - ap->group = group; + if (group == AUGROUP_ALL) { + findgroup = current_augroup; + } else { + findgroup = group; + } + + + // detect special <buffer[=X]> buffer-local patterns + is_buflocal = aupat_is_buflocal(pat, patlen); + buflocal_nr = 0; + + if (is_buflocal) { + buflocal_nr = aupat_get_buflocal_nr(pat, patlen); + + // normalize pat into standard "<buffer>#N" form + aupat_normalize_buflocal_pat(buflocal_pat, pat, patlen, buflocal_nr); + + pat = buflocal_pat; + patlen = (int)STRLEN(buflocal_pat); + } + + if (last_autopat[(int)event] != NULL) { + prev_ap = &last_autopat[(int)event]; + } else { + prev_ap = &first_autopat[(int)event]; + } + + while ((ap = *prev_ap) != NULL) { + if (ap->pat != NULL) { + // Accept a pattern when: + // - a group was specified and it's that group + // - the length of the pattern matches + // - the pattern matches. + // For <buffer[=X]>, this condition works because we normalize + // all buffer-local patterns. + if (ap->group == findgroup + && ap->patlen == patlen + && STRNCMP(pat, ap->pat, patlen) == 0) { + if (ap->next == NULL) { + // Add autocmd to this autopat, if it's the last one. + break; } } + } + prev_ap = &ap->next; + } + + // If the pattern we want to add a command to does appear at the + // end of the list (or not is not in the list at all), add the + // pattern at the end of the list. + if (ap == NULL) { + // refuse to add buffer-local ap if buffer number is invalid + if (is_buflocal + && (buflocal_nr == 0 || buflist_findnr(buflocal_nr) == NULL)) { + semsg(_("E680: <buffer=%d>: invalid buffer number "), buflocal_nr); + return FAIL; + } + + ap = xmalloc(sizeof(AutoPat)); + ap->pat = vim_strnsave(pat, (size_t)patlen); + ap->patlen = patlen; + + if (is_buflocal) { + ap->buflocal_nr = buflocal_nr; + ap->reg_prog = NULL; + } else { + char_u *reg_pat; - // Add the autocmd at the end of the AutoCmd list. - prev_ac = &(ap->cmds); - while ((ac = *prev_ac) != NULL) { - prev_ac = &ac->next; + ap->buflocal_nr = 0; + reg_pat = file_pat_to_reg_pat(pat, pat + patlen, &ap->allow_dirs, true); + if (reg_pat != NULL) { + ap->reg_prog = vim_regcomp(reg_pat, RE_MAGIC); + } + xfree(reg_pat); + if (reg_pat == NULL || ap->reg_prog == NULL) { + xfree(ap->pat); + xfree(ap); + return FAIL; } - ac = xmalloc(sizeof(AutoCmd)); - ac->cmd = vim_strsave(cmd); - ac->script_ctx = current_sctx; - ac->script_ctx.sc_lnum += sourcing_lnum; - ac->next = NULL; - *prev_ac = ac; - ac->once = once; - ac->nested = nested; + } + + // need to initialize last_mode for the first ModeChanged autocmd + if (event == EVENT_MODECHANGED && !has_event(EVENT_MODECHANGED)) { + xfree(last_mode); + last_mode = get_mode(); + } + + // If the event is CursorMoved, update the last cursor position + // position to avoid immediately triggering the autocommand + if (event == EVENT_CURSORMOVED && !has_event(EVENT_CURSORMOVED)) { + curwin->w_last_cursormoved = curwin->w_cursor; + } + + ap->cmds = NULL; + *prev_ap = ap; + last_autopat[(int)event] = ap; + ap->next = NULL; + if (group == AUGROUP_ALL) { + ap->group = current_augroup; + } else { + ap->group = group; } } - au_cleanup(); // may really delete removed patterns/commands now + // Add the autocmd at the end of the AutoCmd list. + prev_ac = &(ap->cmds); + while ((ac = *prev_ac) != NULL) { + prev_ac = &ac->next; + } + + ac = xmalloc(sizeof(AutoCmd)); + *prev_ac = ac; + + ac->id = id; + ac->exec = aucmd_exec_copy(aucmd); + ac->script_ctx = current_sctx; + ac->script_ctx.sc_lnum += sourcing_lnum; + ac->next = NULL; + ac->once = once; + ac->nested = nested; + ac->desc = NULL; + + // TODO(tjdevries): What to do about :autocmd and where/how to show lua stuffs there. + // perhaps: <lua>DESCRIPTION or similar + if (desc != NULL) { + ac->desc = xstrdup(desc); + } else { + ac->desc = aucmd_exec_default_desc(aucmd); + } + return OK; } +size_t aucmd_pattern_length(char_u *pat) +{ + if (*pat == NUL) { + return 0; + } + + char_u *endpat; + + for (; *pat; pat = (*endpat == ',' ? endpat + 1 : endpat)) { + // Find end of the pattern. + // Watch out for a comma in braces, like "*.\{obj,o\}". + endpat = pat; + // ignore single comma + if (*endpat == ',') { + continue; + } + int brace_level = 0; + for (; *endpat && (*endpat != ',' || brace_level || endpat[-1] == '\\'); + endpat++) { + if (*endpat == '{') { + brace_level++; + } else if (*endpat == '}') { + brace_level--; + } + } + + return (size_t)(endpat - pat); + } + + return STRLEN(pat); +} + +char_u *aucmd_next_pattern(char_u *pat, size_t patlen) +{ + pat = pat + patlen; + if (*pat == ',') { + pat = pat + 1; + } + + return pat; +} + /// Implementation of ":doautocmd [group] event [fname]". /// Return OK for success, FAIL for failure; /// @@ -981,7 +1159,7 @@ int do_doautocmd(char_u *arg, bool do_msg, bool *did_something) } // Check for a legal group name. If not, use AUGROUP_ALL. - group = au_get_grouparg(&arg); + group = arg_augroup_get(&arg); if (*arg == '*') { emsg(_("E217: Can't execute autocommands for ALL events")); @@ -990,7 +1168,7 @@ int do_doautocmd(char_u *arg, bool do_msg, bool *did_something) // Scan over the events. // If we find an illegal name, return here, don't do anything. - fname = find_end_event(arg, group != AUGROUP_ALL); + fname = arg_event_skip(arg, group != AUGROUP_ALL); if (fname == NULL) { return FAIL; } @@ -1378,8 +1556,8 @@ bool trigger_cursorhold(void) FUNC_ATTR_PURE FUNC_ATTR_WARN_UNUSED_RESULT /// @param eap Ex command arguments /// /// @return true if some commands were executed. -static bool apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io, bool force, - int group, buf_T *buf, exarg_T *eap) +bool apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io, bool force, int group, + buf_T *buf, exarg_T *eap) { char_u *sfname = NULL; // short file name char_u *tail; @@ -1402,7 +1580,7 @@ static bool apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io, proftime_T wait_time; bool did_save_redobuff = false; save_redo_T save_redo; - const bool save_KeyTyped = KeyTyped; + const bool save_KeyTyped = KeyTyped; // NOLINT // Quickly return if there are no autocommands for this event or // autocommands are blocked. @@ -1814,6 +1992,11 @@ void auto_next_pat(AutoPatCmd *apc, int stop_at_last) /// @return allocated string, or NULL for end of autocommands. char_u *getnextac(int c, void *cookie, int indent, bool do_concat) { + // These arguments are required for do_cmdline. + (void)c; + (void)indent; + (void)do_concat; + AutoPatCmd *acp = (AutoPatCmd *)cookie; char_u *retval; AutoCmd *ac; @@ -1826,7 +2009,8 @@ char_u *getnextac(int c, void *cookie, int indent, bool do_concat) // repeat until we find an autocommand to execute for (;;) { // skip removed commands - while (acp->nextcmd != NULL && acp->nextcmd->cmd == NULL) { + while (acp->nextcmd != NULL + && aucmd_exec_is_deleted(acp->nextcmd->exec)) { if (acp->nextcmd->last) { acp->nextcmd = NULL; } else { @@ -1856,14 +2040,32 @@ char_u *getnextac(int c, void *cookie, int indent, bool do_concat) if (p_verbose >= 9) { verbose_enter_scroll(); - smsg(_("autocommand %s"), ac->cmd); + smsg(_("autocommand %s"), aucmd_exec_to_string(ac, ac->exec)); msg_puts("\n"); // don't overwrite this either verbose_leave_scroll(); } - retval = vim_strsave(ac->cmd); + + if (ac->exec.type == CALLABLE_CB) { + typval_T argsin = TV_INITIAL_VALUE; + typval_T rettv = TV_INITIAL_VALUE; + callback_call(&ac->exec.callable.cb, 0, &argsin, &rettv); + + // Major Hack Alert: + // We just return "not-null" and continue going. + // This would be a good candidate for a refactor. You would need to refactor: + // 1. do_cmdline to accept something besides a string + // OR + // 2. make where we call do_cmdline for autocmds not have to return anything, + // and instead we loop over all the matches and just execute one-by-one. + // However, my expectation woudl be that could be expensive. + retval = vim_strsave((char_u *)""); + } else { + retval = vim_strsave(ac->exec.callable.cmd); + } + // Remove one-shot ("once") autocmd in anticipation of its execution. if (ac->once) { - au_del_cmd(ac); + aucmd_del(ac); } autocmd_nested = ac->nested; current_sctx = ac->script_ctx; @@ -1928,19 +2130,12 @@ bool has_autocmd(event_T event, char_u *sfname, buf_T *buf) FUNC_ATTR_WARN_UNUSE // Function given to ExpandGeneric() to obtain the list of autocommand group // names. -char_u *get_augroup_name(expand_T *xp, int idx) +char_u *expand_get_augroup_name(expand_T *xp, int idx) { - if (idx == augroups.ga_len) { // add "END" add the end - return (char_u *)"END"; - } - if (idx >= augroups.ga_len) { // end of list - return NULL; - } - if (AUGROUP_NAME(idx) == NULL || AUGROUP_NAME(idx) == get_deleted_augroup()) { - // skip deleted entries - return (char_u *)""; - } - return (char_u *)AUGROUP_NAME(idx); + // Required for ExpandGeneric + (void)xp; + + return (char_u *)augroup_name(idx + 1); } /// @param doautocmd true for :doauto*, false for :autocmd @@ -1952,7 +2147,7 @@ char_u *set_context_in_autocmd(expand_T *xp, char_u *arg, int doautocmd) // check for a group name, skip it if present autocmd_include_groups = false; p = arg; - group = au_get_grouparg(&arg); + group = arg_augroup_get(&arg); // If there only is a group name that's what we expand. if (*arg == NUL && group != AUGROUP_ALL && !ascii_iswhite(arg[-1])) { @@ -1993,16 +2188,25 @@ char_u *set_context_in_autocmd(expand_T *xp, char_u *arg, int doautocmd) } // Function given to ExpandGeneric() to obtain the list of event names. -char_u *get_event_name(expand_T *xp, int idx) +char_u *expand_get_event_name(expand_T *xp, int idx) { - if (idx < augroups.ga_len) { // First list group names, if wanted - if (!autocmd_include_groups || AUGROUP_NAME(idx) == NULL - || AUGROUP_NAME(idx) == get_deleted_augroup()) { - return (char_u *)""; // skip deleted entries + // xp is a required parameter to be used with ExpandGeneric + (void)xp; + + + // List group names + char *name = augroup_name(idx + 1); + if (name != NULL) { + // skip when not including groups or skip deleted entries + if (!autocmd_include_groups || name == get_deleted_augroup()) { + return (char_u *)""; } - return (char_u *)AUGROUP_NAME(idx); + + return (char_u *)name; } - return (char_u *)event_names[idx - augroups.ga_len].name; + + // List event names + return (char_u *)event_names[idx - next_augroup_id].name; } /// Check whether given autocommand is supported @@ -2045,7 +2249,7 @@ bool au_exists(const char *const arg) FUNC_ATTR_WARN_UNUSED_RESULT } // First, look for an autocmd group name. - group = au_find_group((char_u *)arg_save); + group = augroup_find(arg_save); char *event_name; if (group == AUGROUP_ERROR) { // Didn't match a group name, assume the first argument is an event. @@ -2109,3 +2313,346 @@ theend: xfree(arg_save); return retval; } + +// Checks if a pattern is buflocal +bool aupat_is_buflocal(char_u *pat, int patlen) +{ + return patlen >= 8 + && STRNCMP(pat, "<buffer", 7) == 0 + && (pat)[patlen - 1] == '>'; +} + +int aupat_get_buflocal_nr(char_u *pat, int patlen) +{ + assert(aupat_is_buflocal(pat, patlen)); + + // "<buffer>" + if (patlen == 8) { + return curbuf->b_fnum; + } + + if (patlen > 9 && (pat)[7] == '=') { + // "<buffer=abuf>" + if (patlen == 13 && STRNICMP(pat, "<buffer=abuf>", 13) == 0) { + return autocmd_bufnr; + } + + // "<buffer=123>" + if (skipdigits(pat + 8) == pat + patlen - 1) { + return atoi((char *)pat + 8); + } + } + + return 0; +} + +// normalize buffer pattern +void aupat_normalize_buflocal_pat(char_u *dest, char_u *pat, int patlen, int buflocal_nr) +{ + assert(aupat_is_buflocal(pat, patlen)); + + if (buflocal_nr == 0) { + buflocal_nr = curbuf->handle; + } + + // normalize pat into standard "<buffer>#N" form + snprintf((char *)dest, + BUFLOCAL_PAT_LEN, + "<buffer=%d>", + buflocal_nr); +} + +int autocmd_delete_event(int group, event_T event, char_u *pat) + FUNC_ATTR_NONNULL_ALL +{ + return do_autocmd_event(event, pat, false, false, (char_u *)"", true, group); +} + +/// Deletes an autocmd by ID. +/// Only autocmds created via the API have IDs associated with them. There +/// is no way to delete a specific autocmd created via :autocmd +void autocmd_delete_id(int64_t id) +{ + FOR_ALL_AUEVENTS(event) { + FOR_ALL_AUPATS_IN_EVENT(event, ap) { + for (AutoCmd *ac = ap->cmds; ac != NULL; ac = ac->next) { + if (ac->id == id) { + aucmd_del(ac); + } + } + } + } +} + +// =========================================================================== +// AucmdExecutable Functions +// =========================================================================== +char *aucmd_exec_default_desc(AucmdExecutable acc) +{ + size_t msglen = 100; + + switch (acc.type) { + case CALLABLE_CB: + switch (acc.callable.cb.type) { + case kCallbackLua: { + char *msg = (char *)xmallocz(msglen); + snprintf(msg, msglen, "<Lua function %d>", acc.callable.cb.data.luaref); + return msg; + } + case kCallbackFuncref: { + // TODO(tjdevries): Is this enough space for this? + char *msg = (char *)xmallocz(msglen); + snprintf(msg, msglen, "<vim function: %s>", acc.callable.cb.data.funcref); + return msg; + } + case kCallbackPartial: { + char *msg = (char *)xmallocz(msglen); + snprintf(msg, msglen, "<vim partial: %s>", acc.callable.cb.data.partial->pt_name); + return msg; + } + default: + return NULL; + } + default: + return NULL; + } + + abort(); +} +char *aucmd_exec_to_string(AutoCmd *ac, AucmdExecutable acc) +{ + switch (acc.type) { + case CALLABLE_EX: + return (char *)acc.callable.cmd; + case CALLABLE_CB: + return ac->desc; + case CALLABLE_NONE: + return "This is not possible"; + } + + abort(); +} + +void aucmd_exec_free(AucmdExecutable *acc) +{ + switch (acc->type) { + case CALLABLE_EX: + XFREE_CLEAR(acc->callable.cmd); + break; + case CALLABLE_CB: + callback_free(&acc->callable.cb); + break; + case CALLABLE_NONE: + return; + } + + acc->type = CALLABLE_NONE; +} + +AucmdExecutable aucmd_exec_copy(AucmdExecutable src) +{ + AucmdExecutable dest = AUCMD_EXECUTABLE_INIT; + + switch (src.type) { + case CALLABLE_EX: + dest.type = CALLABLE_EX; + dest.callable.cmd = vim_strsave(src.callable.cmd); + return dest; + case CALLABLE_CB: + dest.type = CALLABLE_CB; + callback_copy(&dest.callable.cb, &src.callable.cb); + return dest; + case CALLABLE_NONE: + return dest; + } + + abort(); +} + +bool aucmd_exec_is_deleted(AucmdExecutable acc) +{ + switch (acc.type) { + case CALLABLE_EX: + return acc.callable.cmd == NULL; + case CALLABLE_CB: + return callback_is_freed(acc.callable.cb); + case CALLABLE_NONE: + return true; + } + + abort(); +} + +bool au_event_is_empty(event_T event) +{ + return first_autopat[event] == NULL; +} + +// Arg Parsing Functions + +/// Scan over the events. "*" stands for all events. +/// true when group name was found +static char_u *arg_event_skip(char_u *arg, int have_group) +{ + char_u *pat; + char_u *p; + + if (*arg == '*') { + if (arg[1] && !ascii_iswhite(arg[1])) { + semsg(_("E215: Illegal character after *: %s"), arg); + return NULL; + } + pat = arg + 1; + } else { + for (pat = arg; *pat && *pat != '|' && !ascii_iswhite(*pat); pat = p) { + if ((int)event_name2nr(pat, &p) >= NUM_EVENTS) { + if (have_group) { + semsg(_("E216: No such event: %s"), pat); + } else { + semsg(_("E216: No such group or event: %s"), pat); + } + return NULL; + } + } + } + return pat; +} + +// Find the group ID in a ":autocmd" or ":doautocmd" argument. +// The "argp" argument is advanced to the following argument. +// +// Returns the group ID or AUGROUP_ALL. +static int arg_augroup_get(char_u **argp) +{ + char_u *group_name; + char_u *p; + char_u *arg = *argp; + int group = AUGROUP_ALL; + + for (p = arg; *p && !ascii_iswhite(*p) && *p != '|'; p++) { + } + if (p > arg) { + group_name = vim_strnsave(arg, (size_t)(p - arg)); + group = augroup_find((char *)group_name); + if (group == AUGROUP_ERROR) { + group = AUGROUP_ALL; // no match, use all groups + } else { + *argp = skipwhite(p); // match, skip over group name + } + xfree(group_name); + } + return group; +} + + +// UI Enter +void do_autocmd_uienter(uint64_t chanid, bool attached) +{ + static bool recursive = false; + + if (recursive) { + return; // disallow recursion + } + recursive = true; + + save_v_event_T save_v_event; + dict_T *dict = get_v_event(&save_v_event); + assert(chanid < VARNUMBER_MAX); + tv_dict_add_nr(dict, S_LEN("chan"), (varnumber_T)chanid); + tv_dict_set_keys_readonly(dict); + apply_autocmds(attached ? EVENT_UIENTER : EVENT_UILEAVE, + NULL, NULL, false, curbuf); + restore_v_event(dict, &save_v_event); + + recursive = false; +} + +// FocusGained + +static void focusgained_event(void **argv) +{ + bool *gainedp = argv[0]; + do_autocmd_focusgained(*gainedp); + xfree(gainedp); +} + +void autocmd_schedule_focusgained(bool gained) +{ + bool *gainedp = xmalloc(sizeof(*gainedp)); + *gainedp = gained; + loop_schedule_deferred(&main_loop, + event_create(focusgained_event, 1, gainedp)); +} + +static void do_autocmd_focusgained(bool gained) +{ + static bool recursive = false; + static Timestamp last_time = (time_t)0; + bool need_redraw = false; + + if (recursive) { + return; // disallow recursion + } + recursive = true; + need_redraw |= apply_autocmds((gained ? EVENT_FOCUSGAINED : EVENT_FOCUSLOST), + NULL, NULL, false, curbuf); + + // When activated: Check if any file was modified outside of Vim. + // Only do this when not done within the last two seconds as: + // 1. Some filesystems have modification time granularity in seconds. Fat32 + // has a granularity of 2 seconds. + // 2. We could get multiple notifications in a row. + if (gained && last_time + (Timestamp)2000 < os_now()) { + need_redraw = check_timestamps(true); + last_time = os_now(); + } + + if (need_redraw) { + // Something was executed, make sure the cursor is put back where it + // belongs. + need_wait_return = false; + + if (State & CMDLINE) { + redrawcmdline(); + } else if ((State & NORMAL) || (State & INSERT)) { + if (must_redraw != 0) { + update_screen(0); + } + + setcursor(); + } + + ui_flush(); + } + + if (need_maketitle) { + maketitle(); + } + + recursive = false; +} + +// initialization + +void init_default_autocmds(void) +{ + // open terminals when opening files that start with term:// +#define PROTO "term://" + do_cmdline_cmd("augroup nvim_terminal"); + do_cmdline_cmd("autocmd BufReadCmd " PROTO "* ++nested " + "if !exists('b:term_title')|call termopen(" + // Capture the command string + "matchstr(expand(\"<amatch>\"), " + "'\\c\\m" PROTO "\\%(.\\{-}//\\%(\\d\\+:\\)\\?\\)\\?\\zs.*'), " + // capture the working directory + "{'cwd': expand(get(matchlist(expand(\"<amatch>\"), " + "'\\c\\m" PROTO "\\(.\\{-}\\)//'), 1, ''))})" + "|endif"); + do_cmdline_cmd("augroup END"); +#undef PROTO + + // limit syntax synchronization in the command window + do_cmdline_cmd("augroup nvim_cmdwin"); + do_cmdline_cmd("autocmd! CmdwinEnter [:>] syntax sync minlines=1 maxlines=1"); + do_cmdline_cmd("augroup END"); +} |