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autocmd.c
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autocmd.c
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/* vi:set ts=8 sts=4 sw=4 noet:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*/
/*
* autocmd.c: Autocommand related functions
*/
#include "vim.h"
/*
* The autocommands are stored in a list for each event.
* Autocommands for the same pattern, that are consecutive, are joined
* together, to avoid having to match the pattern too often.
* The result is an array of Autopat lists, which point to AutoCmd lists:
*
* last_autopat[0] -----------------------------+
* V
* first_autopat[0] --> Autopat.next --> Autopat.next --> NULL
* Autopat.cmds Autopat.cmds
* | |
* V V
* AutoCmd.next AutoCmd.next
* | |
* V V
* AutoCmd.next NULL
* |
* V
* NULL
*
* last_autopat[1] --------+
* V
* first_autopat[1] --> Autopat.next --> NULL
* Autopat.cmds
* |
* V
* AutoCmd.next
* |
* V
* NULL
* etc.
*
* The order of AutoCmds is important, this is the order in which they were
* defined and will have to be executed.
*/
typedef struct AutoCmd
{
char_u *cmd; // The command to be executed (NULL
// when command has been removed).
char once; // "One shot": removed after execution
char nested; // If autocommands nest here.
char last; // last command in list
sctx_T script_ctx; // script context where it is defined
struct AutoCmd *next; // next AutoCmd in list
} AutoCmd;
typedef struct AutoPat
{
struct AutoPat *next; // Next AutoPat in AutoPat list; MUST
// be the first entry.
char_u *pat; // pattern as typed (NULL when pattern
// has been removed)
regprog_T *reg_prog; // compiled regprog for pattern
AutoCmd *cmds; // list of commands to do
int group; // group ID
int patlen; // strlen() of pat
int buflocal_nr; // !=0 for buffer-local AutoPat
char allow_dirs; // Pattern may match whole path
char last; // last pattern for apply_autocmds()
} AutoPat;
//
// special cases:
// BufNewFile and BufRead are searched for ALOT (especially at startup)
// so we pre-determine their index into the event_tab[] table for fast access.
// Keep these values in sync with event_tab[]!
#define BUFNEWFILE_INDEX 9
#define BUFREAD_INDEX 10
// must be sorted by the 'value' field because it is used by bsearch()!
static keyvalue_T event_tab[] = {
KEYVALUE_ENTRY(EVENT_BUFADD, "BufAdd"),
KEYVALUE_ENTRY(EVENT_BUFADD, "BufCreate"),
KEYVALUE_ENTRY(EVENT_BUFDELETE, "BufDelete"),
KEYVALUE_ENTRY(EVENT_BUFENTER, "BufEnter"),
KEYVALUE_ENTRY(EVENT_BUFFILEPOST, "BufFilePost"),
KEYVALUE_ENTRY(EVENT_BUFFILEPRE, "BufFilePre"),
KEYVALUE_ENTRY(EVENT_BUFHIDDEN, "BufHidden"),
KEYVALUE_ENTRY(EVENT_BUFLEAVE, "BufLeave"),
KEYVALUE_ENTRY(EVENT_BUFNEW, "BufNew"),
KEYVALUE_ENTRY(EVENT_BUFNEWFILE, "BufNewFile"), // BUFNEWFILE_INDEX
KEYVALUE_ENTRY(EVENT_BUFREADPOST, "BufRead"), // BUFREAD_INDEX
KEYVALUE_ENTRY(EVENT_BUFREADCMD, "BufReadCmd"),
KEYVALUE_ENTRY(EVENT_BUFREADPOST, "BufReadPost"),
KEYVALUE_ENTRY(EVENT_BUFREADPRE, "BufReadPre"),
KEYVALUE_ENTRY(EVENT_BUFUNLOAD, "BufUnload"),
KEYVALUE_ENTRY(EVENT_BUFWINENTER, "BufWinEnter"),
KEYVALUE_ENTRY(EVENT_BUFWINLEAVE, "BufWinLeave"),
KEYVALUE_ENTRY(EVENT_BUFWIPEOUT, "BufWipeout"),
KEYVALUE_ENTRY(EVENT_BUFWRITEPRE, "BufWrite"),
KEYVALUE_ENTRY(EVENT_BUFWRITECMD, "BufWriteCmd"),
KEYVALUE_ENTRY(EVENT_BUFWRITEPOST, "BufWritePost"),
KEYVALUE_ENTRY(EVENT_BUFWRITEPRE, "BufWritePre"),
KEYVALUE_ENTRY(EVENT_CMDLINECHANGED, "CmdlineChanged"),
KEYVALUE_ENTRY(EVENT_CMDLINEENTER, "CmdlineEnter"),
KEYVALUE_ENTRY(EVENT_CMDLINELEAVE, "CmdlineLeave"),
KEYVALUE_ENTRY(EVENT_CMDUNDEFINED, "CmdUndefined"),
KEYVALUE_ENTRY(EVENT_CMDWINENTER, "CmdwinEnter"),
KEYVALUE_ENTRY(EVENT_CMDWINLEAVE, "CmdwinLeave"),
KEYVALUE_ENTRY(EVENT_COLORSCHEME, "ColorScheme"),
KEYVALUE_ENTRY(EVENT_COLORSCHEMEPRE, "ColorSchemePre"),
KEYVALUE_ENTRY(EVENT_COMPLETECHANGED, "CompleteChanged"),
KEYVALUE_ENTRY(EVENT_COMPLETEDONE, "CompleteDone"),
KEYVALUE_ENTRY(EVENT_COMPLETEDONEPRE, "CompleteDonePre"),
KEYVALUE_ENTRY(EVENT_CURSORHOLD, "CursorHold"),
KEYVALUE_ENTRY(EVENT_CURSORHOLDI, "CursorHoldI"),
KEYVALUE_ENTRY(EVENT_CURSORMOVED, "CursorMoved"),
KEYVALUE_ENTRY(EVENT_CURSORMOVEDC, "CursorMovedC"),
KEYVALUE_ENTRY(EVENT_CURSORMOVEDI, "CursorMovedI"),
KEYVALUE_ENTRY(EVENT_DIFFUPDATED, "DiffUpdated"),
KEYVALUE_ENTRY(EVENT_DIRCHANGED, "DirChanged"),
KEYVALUE_ENTRY(EVENT_DIRCHANGEDPRE, "DirChangedPre"),
KEYVALUE_ENTRY(EVENT_ENCODINGCHANGED, "EncodingChanged"),
KEYVALUE_ENTRY(EVENT_EXITPRE, "ExitPre"),
KEYVALUE_ENTRY(EVENT_FILEAPPENDCMD, "FileAppendCmd"),
KEYVALUE_ENTRY(EVENT_FILEAPPENDPOST, "FileAppendPost"),
KEYVALUE_ENTRY(EVENT_FILEAPPENDPRE, "FileAppendPre"),
KEYVALUE_ENTRY(EVENT_FILECHANGEDRO, "FileChangedRO"),
KEYVALUE_ENTRY(EVENT_FILECHANGEDSHELL, "FileChangedShell"),
KEYVALUE_ENTRY(EVENT_FILECHANGEDSHELLPOST, "FileChangedShellPost"),
KEYVALUE_ENTRY(EVENT_ENCODINGCHANGED, "FileEncoding"),
KEYVALUE_ENTRY(EVENT_FILEREADCMD, "FileReadCmd"),
KEYVALUE_ENTRY(EVENT_FILEREADPOST, "FileReadPost"),
KEYVALUE_ENTRY(EVENT_FILEREADPRE, "FileReadPre"),
KEYVALUE_ENTRY(EVENT_FILETYPE, "FileType"),
KEYVALUE_ENTRY(EVENT_FILEWRITECMD, "FileWriteCmd"),
KEYVALUE_ENTRY(EVENT_FILEWRITEPOST, "FileWritePost"),
KEYVALUE_ENTRY(EVENT_FILEWRITEPRE, "FileWritePre"),
KEYVALUE_ENTRY(EVENT_FILTERREADPOST, "FilterReadPost"),
KEYVALUE_ENTRY(EVENT_FILTERREADPRE, "FilterReadPre"),
KEYVALUE_ENTRY(EVENT_FILTERWRITEPOST, "FilterWritePost"),
KEYVALUE_ENTRY(EVENT_FILTERWRITEPRE, "FilterWritePre"),
KEYVALUE_ENTRY(EVENT_FOCUSGAINED, "FocusGained"),
KEYVALUE_ENTRY(EVENT_FOCUSLOST, "FocusLost"),
KEYVALUE_ENTRY(EVENT_FUNCUNDEFINED, "FuncUndefined"),
KEYVALUE_ENTRY(EVENT_GUIENTER, "GUIEnter"),
KEYVALUE_ENTRY(EVENT_GUIFAILED, "GUIFailed"),
KEYVALUE_ENTRY(EVENT_INSERTCHANGE, "InsertChange"),
KEYVALUE_ENTRY(EVENT_INSERTCHARPRE, "InsertCharPre"),
KEYVALUE_ENTRY(EVENT_INSERTENTER, "InsertEnter"),
KEYVALUE_ENTRY(EVENT_INSERTLEAVE, "InsertLeave"),
KEYVALUE_ENTRY(EVENT_INSERTLEAVEPRE, "InsertLeavePre"),
KEYVALUE_ENTRY(EVENT_KEYINPUTPRE, "KeyInputPre"),
KEYVALUE_ENTRY(EVENT_MENUPOPUP, "MenuPopup"),
KEYVALUE_ENTRY(EVENT_MODECHANGED, "ModeChanged"),
KEYVALUE_ENTRY(EVENT_OPTIONSET, "OptionSet"),
KEYVALUE_ENTRY(EVENT_OSAPPCHANGED, "OSAppearanceChanged"),
KEYVALUE_ENTRY(EVENT_QUICKFIXCMDPOST, "QuickFixCmdPost"),
KEYVALUE_ENTRY(EVENT_QUICKFIXCMDPRE, "QuickFixCmdPre"),
KEYVALUE_ENTRY(EVENT_QUITPRE, "QuitPre"),
KEYVALUE_ENTRY(EVENT_REMOTEREPLY, "RemoteReply"),
KEYVALUE_ENTRY(EVENT_SAFESTATE, "SafeState"),
KEYVALUE_ENTRY(EVENT_SAFESTATEAGAIN, "SafeStateAgain"),
KEYVALUE_ENTRY(EVENT_SESSIONLOADPOST, "SessionLoadPost"),
KEYVALUE_ENTRY(EVENT_SESSIONWRITEPOST, "SessionWritePost"),
KEYVALUE_ENTRY(EVENT_SHELLCMDPOST, "ShellCmdPost"),
KEYVALUE_ENTRY(EVENT_SHELLFILTERPOST, "ShellFilterPost"),
KEYVALUE_ENTRY(EVENT_SIGUSR1, "SigUSR1"),
KEYVALUE_ENTRY(EVENT_SOURCECMD, "SourceCmd"),
KEYVALUE_ENTRY(EVENT_SOURCEPOST, "SourcePost"),
KEYVALUE_ENTRY(EVENT_SOURCEPRE, "SourcePre"),
KEYVALUE_ENTRY(EVENT_SPELLFILEMISSING, "SpellFileMissing"),
KEYVALUE_ENTRY(EVENT_STDINREADPOST, "StdinReadPost"),
KEYVALUE_ENTRY(EVENT_STDINREADPRE, "StdinReadPre"),
KEYVALUE_ENTRY(EVENT_SWAPEXISTS, "SwapExists"),
KEYVALUE_ENTRY(EVENT_SYNTAX, "Syntax"),
KEYVALUE_ENTRY(EVENT_TABCLOSED, "TabClosed"),
KEYVALUE_ENTRY(EVENT_TABENTER, "TabEnter"),
KEYVALUE_ENTRY(EVENT_TABLEAVE, "TabLeave"),
KEYVALUE_ENTRY(EVENT_TABNEW, "TabNew"),
KEYVALUE_ENTRY(EVENT_TERMCHANGED, "TermChanged"),
KEYVALUE_ENTRY(EVENT_TERMINALOPEN, "TerminalOpen"),
KEYVALUE_ENTRY(EVENT_TERMINALWINOPEN, "TerminalWinOpen"),
KEYVALUE_ENTRY(EVENT_TERMRESPONSE, "TermResponse"),
KEYVALUE_ENTRY(EVENT_TERMRESPONSEALL, "TermResponseAll"),
KEYVALUE_ENTRY(EVENT_TEXTCHANGED, "TextChanged"),
KEYVALUE_ENTRY(EVENT_TEXTCHANGEDI, "TextChangedI"),
KEYVALUE_ENTRY(EVENT_TEXTCHANGEDP, "TextChangedP"),
KEYVALUE_ENTRY(EVENT_TEXTCHANGEDT, "TextChangedT"),
KEYVALUE_ENTRY(EVENT_TEXTYANKPOST, "TextYankPost"),
KEYVALUE_ENTRY(EVENT_USER, "User"),
KEYVALUE_ENTRY(EVENT_VIMENTER, "VimEnter"),
KEYVALUE_ENTRY(EVENT_VIMLEAVE, "VimLeave"),
KEYVALUE_ENTRY(EVENT_VIMLEAVEPRE, "VimLeavePre"),
KEYVALUE_ENTRY(EVENT_VIMRESIZED, "VimResized"),
KEYVALUE_ENTRY(EVENT_VIMRESUME, "VimResume"),
KEYVALUE_ENTRY(EVENT_VIMSUSPEND, "VimSuspend"),
KEYVALUE_ENTRY(EVENT_WINCLOSED, "WinClosed"),
KEYVALUE_ENTRY(EVENT_WINENTER, "WinEnter"),
KEYVALUE_ENTRY(EVENT_WINLEAVE, "WinLeave"),
KEYVALUE_ENTRY(EVENT_WINNEW, "WinNew"),
KEYVALUE_ENTRY(EVENT_WINNEWPRE, "WinNewPre"),
KEYVALUE_ENTRY(EVENT_WINRESIZED, "WinResized"),
KEYVALUE_ENTRY(EVENT_WINSCROLLED, "WinScrolled")
};
static AutoPat *first_autopat[NUM_EVENTS] = {
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL
};
static AutoPat *last_autopat[NUM_EVENTS] = {
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL
};
#define AUGROUP_DEFAULT (-1) // default autocmd group
#define AUGROUP_ERROR (-2) // erroneous autocmd group
#define AUGROUP_ALL (-3) // all autocmd groups
/*
* struct used to keep status while executing autocommands for an event.
*/
struct AutoPatCmd_S
{
AutoPat *curpat; // next AutoPat to examine
AutoCmd *nextcmd; // next AutoCmd to execute
int group; // group being used
char_u *fname; // fname to match with
char_u *sfname; // sfname to match with
char_u *tail; // tail of fname
event_T event; // current event
sctx_T script_ctx; // script context where it is defined
int arg_bufnr; // Initially equal to <abuf>, set to zero when
// buf is deleted.
AutoPatCmd_T *next; // chain of active apc-s for auto-invalidation
};
static AutoPatCmd_T *active_apc_list = NULL; // stack of active autocommands
// Macro to loop over all the patterns for an autocmd event
#define FOR_ALL_AUTOCMD_PATTERNS(event, ap) \
for ((ap) = first_autopat[(int)(event)]; (ap) != NULL; (ap) = (ap)->next)
/*
* augroups stores a list of autocmd group names.
*/
static garray_T augroups = {0, 0, sizeof(char_u *), 10, NULL};
#define AUGROUP_NAME(i) (((char_u **)augroups.ga_data)[i])
// use get_deleted_augroup() to get this
static char_u *deleted_augroup = NULL;
/*
* The ID of the current group. Group 0 is the default one.
*/
static int current_augroup = AUGROUP_DEFAULT;
static int au_need_clean = FALSE; // need to delete marked patterns
static event_T event_name2nr(char_u *start, char_u **end);
static char_u *event_nr2name(event_T event);
static int au_get_grouparg(char_u **argp);
static int do_autocmd_event(event_T event, char_u *pat, int once, int nested, char_u *cmd, int forceit, int group, int flags);
static int apply_autocmds_group(event_T event, char_u *fname, char_u *fname_io, int force, int group, buf_T *buf, exarg_T *eap);
static void auto_next_pat(AutoPatCmd_T *apc, int stop_at_last);
static int au_find_group(char_u *name);
static event_T last_event;
static int last_group;
static int autocmd_blocked = 0; // block all autocmds
static char_u *
get_deleted_augroup(void)
{
if (deleted_augroup == NULL)
deleted_augroup = (char_u *)_("--Deleted--");
return deleted_augroup;
}
/*
* Show the autocommands for one AutoPat.
*/
static void
show_autocmd(AutoPat *ap, event_T event)
{
AutoCmd *ac;
// Check for "got_int" (here and at various places below), which is set
// when "q" has been hit for the "--more--" prompt
if (got_int)
return;
if (ap->pat == NULL) // pattern has been removed
return;
// Make sure no info referenced by "ap" is cleared, e.g. when a timer
// clears an augroup. Jump to "theend" after this!
// "ap->pat" may be cleared anyway.
++autocmd_busy;
msg_putchar('\n');
if (got_int)
goto theend;
if (event != last_event || ap->group != last_group)
{
if (ap->group != AUGROUP_DEFAULT)
{
if (AUGROUP_NAME(ap->group) == NULL)
msg_puts_attr((char *)get_deleted_augroup(), HL_ATTR(HLF_E));
else
msg_puts_attr((char *)AUGROUP_NAME(ap->group), HL_ATTR(HLF_T));
msg_puts(" ");
}
msg_puts_attr((char *)event_nr2name(event), HL_ATTR(HLF_T));
last_event = event;
last_group = ap->group;
msg_putchar('\n');
if (got_int)
goto theend;
}
if (ap->pat == NULL)
goto theend; // timer might have cleared the pattern or group
msg_col = 4;
msg_outtrans(ap->pat);
for (ac = ap->cmds; ac != NULL; ac = ac->next)
{
if (ac->cmd == NULL) // skip removed commands
continue;
if (msg_col >= 14)
msg_putchar('\n');
msg_col = 14;
if (got_int)
goto theend;
msg_outtrans(ac->cmd);
#ifdef FEAT_EVAL
if (p_verbose > 0)
last_set_msg(ac->script_ctx);
#endif
if (got_int)
goto theend;
if (ac->next != NULL)
{
msg_putchar('\n');
if (got_int)
goto theend;
}
}
theend:
--autocmd_busy;
}
/*
* Mark an autocommand pattern for deletion.
*/
static void
au_remove_pat(AutoPat *ap)
{
VIM_CLEAR(ap->pat);
ap->buflocal_nr = -1;
au_need_clean = TRUE;
}
/*
* Mark all commands for a pattern for deletion.
*/
static void
au_remove_cmds(AutoPat *ap)
{
AutoCmd *ac;
for (ac = ap->cmds; ac != NULL; ac = ac->next)
VIM_CLEAR(ac->cmd);
au_need_clean = TRUE;
}
// Delete one command from an autocmd pattern.
static void au_del_cmd(AutoCmd *ac)
{
VIM_CLEAR(ac->cmd);
au_need_clean = TRUE;
}
/*
* Cleanup autocommands and patterns that have been deleted.
* This is only done when not executing autocommands.
*/
static void
au_cleanup(void)
{
AutoPat *ap, **prev_ap;
AutoCmd *ac, **prev_ac;
event_T event;
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))
{
// loop over all autocommand patterns
prev_ap = &(first_autopat[(int)event]);
for (ap = *prev_ap; ap != NULL; ap = *prev_ap)
{
int has_cmd = FALSE;
// loop over all commands for this pattern
prev_ac = &(ap->cmds);
for (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)
{
*prev_ac = ac->next;
vim_free(ac->cmd);
vim_free(ac);
}
else
{
has_cmd = TRUE;
prev_ac = &(ac->next);
}
}
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);
// remove the pattern if it has been marked for deletion
if (ap->pat == NULL)
{
if (ap->next == NULL)
{
if (prev_ap == &(first_autopat[(int)event]))
last_autopat[(int)event] = NULL;
else
// this depends on the "next" field being the first in
// the struct
last_autopat[(int)event] = (AutoPat *)prev_ap;
}
*prev_ap = ap->next;
vim_regfree(ap->reg_prog);
vim_free(ap);
}
else
prev_ap = &(ap->next);
}
}
au_need_clean = FALSE;
}
/*
* Called when buffer is freed, to remove/invalidate related buffer-local
* autocmds.
*/
void
aubuflocal_remove(buf_T *buf)
{
AutoPat *ap;
event_T event;
AutoPatCmd_T *apc;
// invalidate currently executing autocommands
for (apc = active_apc_list; apc; apc = apc->next)
if (buf->b_fnum == apc->arg_bufnr)
apc->arg_bufnr = 0;
// 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_ALL_AUTOCMD_PATTERNS(event, ap)
if (ap->buflocal_nr == buf->b_fnum)
{
au_remove_pat(ap);
if (p_verbose >= 6)
{
verbose_enter();
smsg(_("auto-removing autocommand: %s <buffer=%d>"),
event_nr2name(event), buf->b_fnum);
verbose_leave();
}
}
au_cleanup();
}
/*
* Add an autocmd group name.
* Return its ID. Returns AUGROUP_ERROR (< 0) for error.
*/
static int
au_new_group(char_u *name)
{
int i;
i = au_find_group(name);
if (i != AUGROUP_ERROR)
return i;
// 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) == FAIL)
return AUGROUP_ERROR;
AUGROUP_NAME(i) = vim_strsave(name);
if (AUGROUP_NAME(i) == NULL)
return AUGROUP_ERROR;
if (i == augroups.ga_len)
++augroups.ga_len;
return i;
}
static void
au_del_group(char_u *name)
{
int i;
event_T event;
AutoPat *ap;
int in_use = FALSE;
i = au_find_group(name);
if (i == AUGROUP_ERROR) // the group doesn't exist
{
semsg(_(e_no_such_group_str), name);
return;
}
if (i == current_augroup)
{
emsg(_(e_cannot_delete_current_group));
return;
}
for (event = (event_T)0; (int)event < NUM_EVENTS;
event = (event_T)((int)event + 1))
{
FOR_ALL_AUTOCMD_PATTERNS(event, ap)
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;
}
}
vim_free(AUGROUP_NAME(i));
if (in_use)
AUGROUP_NAME(i) = get_deleted_augroup();
else
AUGROUP_NAME(i) = NULL;
}
/*
* Find the ID of an autocmd group name.
* Return its ID. Returns AUGROUP_ERROR (< 0) for error.
*/
static int
au_find_group(char_u *name)
{
int i;
for (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;
return AUGROUP_ERROR;
}
/*
* Return TRUE if augroup "name" exists.
*/
int
au_has_group(char_u *name)
{
return au_find_group(name) != AUGROUP_ERROR;
}
/*
* ":augroup {name}".
*/
void
do_augroup(char_u *arg, int del_group)
{
int i;
if (del_group)
{
if (*arg == NUL)
emsg(_(e_argument_required));
else
au_del_group(arg);
}
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
{
i = au_new_group(arg);
if (i != AUGROUP_ERROR)
current_augroup = i;
}
else // ":aug": list the group names
{
msg_start();
for (i = 0; i < augroups.ga_len; ++i)
{
if (AUGROUP_NAME(i) != NULL)
{
msg_puts((char *)AUGROUP_NAME(i));
msg_puts(" ");
}
}
msg_clr_eos();
msg_end();
}
}
void
autocmd_init(void)
{
CLEAR_FIELD(aucmd_win);
}
#if defined(EXITFREE) || defined(PROTO)
void
free_all_autocmds(void)
{
char_u *s;
for (current_augroup = -1; current_augroup < augroups.ga_len;
++current_augroup)
do_autocmd(NULL, (char_u *)"", TRUE);
for (int i = 0; i < augroups.ga_len; ++i)
{
s = ((char_u **)(augroups.ga_data))[i];
if (s != get_deleted_augroup())
vim_free(s);
}
ga_clear(&augroups);
// aucmd_win[] is freed in win_free_all()
}
#endif
/*
* Return TRUE if "win" is an active entry in aucmd_win[].
*/
int
is_aucmd_win(win_T *win)
{
for (int i = 0; i < AUCMD_WIN_COUNT; ++i)
if (aucmd_win[i].auc_win_used && aucmd_win[i].auc_win == win)
return TRUE;
return FALSE;
}
/*
* 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(char_u *start, char_u **end)
{
char_u *p;
keyvalue_T target;
keyvalue_T *entry;
static keyvalue_T *bufnewfile = &event_tab[BUFNEWFILE_INDEX];
static keyvalue_T *bufread = &event_tab[BUFREAD_INDEX];
// the event name ends with end of line, '|', a blank or a comma
for (p = start; *p && !VIM_ISWHITE(*p) && *p != ',' && *p != '|'; ++p)
;
target.key = 0;
target.value = (char *)start;
target.length = (size_t)(p - start);
// special cases:
// BufNewFile and BufRead are searched for ALOT (especially at startup)
// so we check for them first.
if (cmp_keyvalue_value_ni(&target, bufnewfile) == 0)
entry = bufnewfile;
else
if (cmp_keyvalue_value_ni(&target, bufread) == 0)
entry = bufread;
else
entry = (keyvalue_T *)bsearch(&target, &event_tab, ARRAY_LENGTH(event_tab), sizeof(event_tab[0]), cmp_keyvalue_value_ni);
if (*p == ',')
++p;
*end = p;
return (entry == NULL) ? NUM_EVENTS : (event_T)entry->key;
}
/*
* Return the name for event "event".
*/
static char_u *
event_nr2name(event_T event)
{
int i;
#define CACHE_SIZE 12
static int cache_tab[CACHE_SIZE];
static int cache_last_index = -1;
if (cache_last_index < 0)
{
for (i = 0; i < (int)ARRAY_LENGTH(cache_tab); ++i)
cache_tab[i] = -1;
cache_last_index = ARRAY_LENGTH(cache_tab) - 1;
}
// first look in the cache
// the cache is circular. to search it we start at the most recent entry
// and go backwards wrapping around when we get to index 0.
for (i = cache_last_index; cache_tab[i] >= 0; )
{
if ((event_T)event_tab[cache_tab[i]].key == event)
return (char_u *)event_tab[cache_tab[i]].value;
if (i == 0)
i = ARRAY_LENGTH(cache_tab) - 1;
else
--i;
// are we back at the start?
if (i == cache_last_index)
break;
}
// look in the event table itself
for (i = 0; i < (int)ARRAY_LENGTH(event_tab); ++i)
{
if ((event_T)event_tab[i].key == event)
{
// store the found entry in the next position in the cache,
// wrapping around when we get to the maximum index.
if (cache_last_index == ARRAY_LENGTH(cache_tab) - 1)
cache_last_index = 0;
else
++cache_last_index;
cache_tab[cache_last_index] = i;
break;
}
}
return (i == (int)ARRAY_LENGTH(event_tab)) ? (char_u *)"Unknown" : (char_u *)event_tab[i].value;
}
/*
* Scan over the events. "*" stands for all events.
*/
static char_u *
find_end_event(
char_u *arg,
int have_group) // TRUE when group name was found
{
char_u *pat;
char_u *p;
if (*arg == '*')
{
if (arg[1] && !VIM_ISWHITE(arg[1]))
{
semsg(_(e_illegal_character_after_star_str), arg);
return NULL;
}
pat = arg + 1;
}
else
{
for (pat = arg; *pat && *pat != '|' && !VIM_ISWHITE(*pat); pat = p)
{
if ((int)event_name2nr(pat, &p) >= NUM_EVENTS)
{
if (have_group)
semsg(_(e_no_such_event_str), pat);
else
semsg(_(e_no_such_group_or_event_str), pat);
return NULL;
}
}
}
return pat;
}
/*
* Return TRUE if "event" is included in 'eventignore'.
*/
static int
event_ignored(event_T event)
{
char_u *p = p_ei;
while (*p != NUL)
{
if (STRNICMP(p, "all", 3) == 0 && (p[3] == NUL || p[3] == ','))
return TRUE;
if (event_name2nr(p, &p) == event)
return TRUE;
}
return FALSE;
}
/*
* Return OK when the contents of p_ei is valid, FAIL otherwise.
*/
int
check_ei(void)
{
char_u *p = p_ei;
while (*p)
{
if (STRNICMP(p, "all", 3) == 0 && (p[3] == NUL || p[3] == ','))
{
p += 3;
if (*p == ',')
++p;
}
else if (event_name2nr(p, &p) == NUM_EVENTS)
return FAIL;
}
return OK;
}
# if defined(FEAT_SYN_HL) || defined(PROTO)
/*
* Add "what" to 'eventignore' to skip loading syntax highlighting for every
* buffer loaded into the window. "what" must start with a comma.
* Returns the old value of 'eventignore' in allocated memory.
*/
char_u *
au_event_disable(char *what)
{
char_u *new_ei;
char_u *save_ei;
size_t p_ei_len;
p_ei_len = STRLEN(p_ei);
save_ei = vim_strnsave(p_ei, p_ei_len);
if (save_ei == NULL)
return NULL;
new_ei = vim_strnsave(p_ei, p_ei_len + STRLEN(what));
if (new_ei == NULL)
{
vim_free(save_ei);
return NULL;
}
if (*what == ',' && *p_ei == NUL)
STRCPY(new_ei, what + 1);
else
STRCAT(new_ei, what);
set_string_option_direct((char_u *)"ei", -1, new_ei,
OPT_FREE, SID_NONE);
vim_free(new_ei);
return save_ei;
}
void
au_event_restore(char_u *old_ei)
{
if (old_ei != NULL)
{
set_string_option_direct((char_u *)"ei", -1, old_ei,
OPT_FREE, SID_NONE);
vim_free(old_ei);
}
}
# endif // FEAT_SYN_HL
/*
* do_autocmd() -- implements the :autocmd command. Can be used in the
* following ways:
*
* :autocmd <event> <pat> <cmd> Add <cmd> to the list of commands that
* will be automatically executed for <event>
* when editing a file matching <pat>, in
* the current group.
* :autocmd <event> <pat> Show the autocommands associated with
* <event> and <pat>.
* :autocmd <event> Show the autocommands associated with
* <event>.
* :autocmd Show all autocommands.
* :autocmd! <event> <pat> <cmd> Remove all autocommands associated with
* <event> and <pat>, and add the command
* <cmd>, for the current group.
* :autocmd! <event> <pat> Remove all autocommands associated with
* <event> and <pat> for the current group.
* :autocmd! <event> Remove all autocommands associated with
* <event> for the current group.
* :autocmd! Remove ALL autocommands for the current
* group.
*
* Multiple events and patterns may be given separated by commas. Here are
* some examples:
* :autocmd bufread,bufenter *.c,*.h set tw=0 smartindent noic
* :autocmd bufleave * set tw=79 nosmartindent ic infercase
*
* :autocmd * *.c show all autocommands for *.c files.
*
* Mostly a {group} argument can optionally appear before <event>.
* "eap" can be NULL.
*/
void
do_autocmd(exarg_T *eap, char_u *arg_in, int forceit)
{
char_u *arg = arg_in;
char_u *pat;
char_u *envpat = NULL;
char_u *cmd;
int cmd_need_free = FALSE;
event_T event;
char_u *tofree = NULL;
int nested = FALSE;
int once = FALSE;
int group;
int i;
int flags = 0;
if (*arg == '|')
{
eap->nextcmd = arg + 1;
arg = (char_u *)"";
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);
if (arg == NULL) // out of memory
return;
}
/*
* Scan over the events.
* If we find an illegal name, return here, don't do anything.
*/
pat = find_end_event(arg, group != AUGROUP_ALL);
if (pat == NULL)
return;
pat = skipwhite(pat);
if (*pat == '|')
{
eap->nextcmd = pat + 1;
pat = (char_u *)"";
cmd = (char_u *)"";
}
else
{
/*
* Scan over the pattern. Put a NUL at the end.
*/
cmd = pat;
while (*cmd && (!VIM_ISWHITE(*cmd) || cmd[-1] == '\\'))