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if_tcl.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.
*/
/*
* Tcl extensions by Ingo Wilken <[email protected]>
* Last modification: Wed May 10 21:28:44 CEST 2000
* Requires Tcl 8.0 or higher.
*
* Variables:
* ::vim::current(buffer) # Name of buffer command for current buffer.
* ::vim::current(window) # Name of window command for current window.
* ::vim::range(start) # Start of current range (line number).
* ::vim::range(end) # End of current range (line number).
* ::vim::lbase # Start of line/column numbers (1 or 0).
*
* Commands:
* ::vim::command {cmd} # Execute ex command {cmd}.
* ::vim::option {opt} [val] # Get/Set option {opt}.
* ::vim::expr {expr} # Evaluate {expr} using vim's evaluator.
* ::vim::beep # Guess.
*
* set buf [::vim::buffer {n}] # Create Tcl command for buffer N.
* set bl [::vim::buffer list] # Get list of Tcl commands of all buffers.
* ::vim::buffer exists {n} # True if buffer {n} exists.
*
* set wl [::vim::window list] # Get list of Tcl commands of all windows.
*
* set n [$win height] # Report window height.
* $win height {n} # Set window height to {n}.
* array set pos [$win cursor] # Get cursor position.
* $win cursor {row} {col} # Set cursor position.
* $win cursor pos # Set cursor position from array var "pos"
* $win delcmd {cmd} # Register callback command for closed window.
* $win option {opt} [val] # Get/Set vim option in context of $win.
* $win command {cmd} # Execute ex command in context of $win.
* $win expr {expr} # Evaluate vim expression in context of $win.
* set buf [$win buffer] # Create Tcl command for window's buffer.
*
* $buf name # Reports file name in buffer.
* $buf number # Reports buffer number.
* set l [$buf get {n}] # Get buffer line {n} as a string.
* set L [$buf get {n} {m}] # Get lines {n} through {m} as a list.
* $buf count # Reports number of lines in buffer.
* $buf last # Reports number of last line in buffer.
* $buf delete {n} # Delete line {n}.
* $buf delete {n} {m} # Delete lines {n} through {m}.
* $buf set {n} {l} # Set line {n} to string {l}.
* $buf set {n} {m} {L} # Set lines {n} through {m} from list {L}.
* # Delete/inserts lines as appropriate.
* $buf option {opt} [val] # Get/Set vim option in context of $buf.
* $buf command {cmd} # Execute ex command in context of $buf
* $buf expr {cmd} # Evaluate vim expression in context of $buf.
* array set pos [$buf mark {m}] # Get position of mark.
* $buf append {n} {str} # Append string {str} to buffer,after line {n}.
* $buf insert {n} {str} # Insert string {str} in buffer as line {n}.
* $buf delcmd {cmd} # Register callback command for deleted buffer.
* set wl [$buf windows] # Get list of Tcl commands for all windows of
* # this buffer.
TODO:
* ::vim::buffer new # create new buffer + Tcl command
*/
#include "vim.h"
#undef EXTERN /* tcl.h defines it too */
#ifdef DYNAMIC_TCL
# define USE_TCL_STUBS /* use tcl's stubs mechanism */
#endif
#include <tcl.h>
#include <string.h>
typedef struct
{
Tcl_Interp *interp;
int exitvalue;
int range_start, range_end;
int lbase;
char *curbuf, *curwin;
} tcl_info;
static tcl_info tclinfo = { NULL, 0, 0, 0, 0, NULL, NULL };
#define VAR_RANGE1 "::vim::range(start)"
#define VAR_RANGE2 "::vim::range(begin)"
#define VAR_RANGE3 "::vim::range(end)"
#define VAR_CURBUF "::vim::current(buffer)"
#define VAR_CURWIN "::vim::current(window)"
#define VAR_LBASE "::vim::lbase"
#define VAR_CURLINE "line"
#define VAR_CURLNUM "lnum"
#define VARNAME_SIZE 64
#define row2tcl(x) ((x) - (tclinfo.lbase==0))
#define row2vim(x) ((x) + (tclinfo.lbase==0))
#define col2tcl(x) ((x) + (tclinfo.lbase!=0))
#define col2vim(x) ((x) - (tclinfo.lbase!=0))
#define VIMOUT ((ClientData)1)
#define VIMERR ((ClientData)2)
/* This appears to be new in Tcl 8.4. */
#ifndef CONST84
# define CONST84
#endif
/*
* List of Tcl interpreters who reference a vim window or buffer.
* Each buffer and window has it's own list in the w_tcl_ref or b_tcl_ref
* struct member. We need this because Tcl can create sub-interpreters with
* the "interp" command, and each interpreter can reference all windows and
* buffers.
*/
struct ref
{
struct ref *next;
Tcl_Interp *interp;
Tcl_Command cmd; /* Tcl command that represents this object */
Tcl_Obj *delcmd; /* Tcl command to call when object is being del. */
void *vimobj; /* Vim window or buffer (win_T* or buf_T*) */
};
static char * tclgetbuffer _ANSI_ARGS_((Tcl_Interp *interp, buf_T *buf));
static char * tclgetwindow _ANSI_ARGS_((Tcl_Interp *interp, win_T *win));
static int tclsetdelcmd _ANSI_ARGS_((Tcl_Interp *interp, struct ref *reflist, void *vimobj, Tcl_Obj *delcmd));
static int tclgetlinenum _ANSI_ARGS_ ((Tcl_Interp *interp, Tcl_Obj *obj, int *valueP, buf_T *buf));
static win_T *tclfindwin _ANSI_ARGS_ ((buf_T *buf));
static int tcldoexcommand _ANSI_ARGS_ ((Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], int objn));
static int tclsetoption _ANSI_ARGS_ ((Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], int objn));
static int tclvimexpr _ANSI_ARGS_ ((Tcl_Interp *interp, int objc, Tcl_Obj *CONST objv[], int objn));
static void tcldelthisinterp _ANSI_ARGS_ ((void));
static int vimerror _ANSI_ARGS_((Tcl_Interp *interp));
static void tclmsg _ANSI_ARGS_((char *text));
static void tclerrmsg _ANSI_ARGS_((char *text));
static void tclupdatevars _ANSI_ARGS_((void));
static struct ref refsdeleted; /* dummy object for deleted ref list */
/*****************************************************************************
* TCL interface manager
****************************************************************************/
#if defined(DYNAMIC_TCL) || defined(PROTO)
# ifndef DYNAMIC_TCL_DLL
# define DYNAMIC_TCL_DLL "tcl83.dll"
# endif
# ifndef DYNAMIC_TCL_VER
# define DYNAMIC_TCL_VER "8.3"
# endif
# ifndef DYNAMIC_TCL /* Just generating prototypes */
typedef int HANDLE;
# endif
# ifndef WIN3264
# include <dlfcn.h>
# define HANDLE void*
# define TCL_PROC void*
# define load_dll(n) dlopen((n), RTLD_LAZY|RTLD_GLOBAL)
# define symbol_from_dll dlsym
# define close_dll dlclose
# else
# define TCL_PROC FARPROC
# define load_dll vimLoadLib
# define symbol_from_dll GetProcAddress
# define close_dll FreeLibrary
# endif
/*
* Declare HANDLE for tcl.dll and function pointers.
*/
static HANDLE hTclLib = NULL;
Tcl_Interp* (*dll_Tcl_CreateInterp)();
void (*dll_Tcl_FindExecutable)(const void *);
/*
* Table of name to function pointer of tcl.
*/
static struct {
char* name;
TCL_PROC* ptr;
} tcl_funcname_table[] = {
{"Tcl_CreateInterp", (TCL_PROC*)&dll_Tcl_CreateInterp},
{"Tcl_FindExecutable", (TCL_PROC*)&dll_Tcl_FindExecutable},
{NULL, NULL},
};
/*
* Make all runtime-links of tcl.
*
* 1. Get module handle using LoadLibraryEx.
* 2. Get pointer to tcl function by GetProcAddress.
* 3. Repeat 2, until get all functions will be used.
*
* Parameter 'libname' provides name of DLL.
* Return OK or FAIL.
*/
static int
tcl_runtime_link_init(char *libname, int verbose)
{
int i;
if (hTclLib)
return OK;
if (!(hTclLib = load_dll(libname)))
{
if (verbose)
EMSG2(_(e_loadlib), libname);
return FAIL;
}
for (i = 0; tcl_funcname_table[i].ptr; ++i)
{
if (!(*tcl_funcname_table[i].ptr = symbol_from_dll(hTclLib,
tcl_funcname_table[i].name)))
{
close_dll(hTclLib);
hTclLib = NULL;
if (verbose)
EMSG2(_(e_loadfunc), tcl_funcname_table[i].name);
return FAIL;
}
}
return OK;
}
#endif /* defined(DYNAMIC_TCL) || defined(PROTO) */
#ifdef DYNAMIC_TCL
static char *find_executable_arg = NULL;
#endif
void
vim_tcl_init(char *arg)
{
#ifndef DYNAMIC_TCL
Tcl_FindExecutable(arg);
#else
find_executable_arg = arg;
#endif
}
#if defined(DYNAMIC_TCL) || defined(PROTO)
static int stubs_initialized = FALSE;
/*
* Return TRUE if the TCL interface can be used.
*/
int
tcl_enabled(int verbose)
{
if (!stubs_initialized && find_executable_arg != NULL
&& tcl_runtime_link_init((char *)p_tcldll, verbose) == OK)
{
Tcl_Interp *interp;
dll_Tcl_FindExecutable(find_executable_arg);
if ((interp = dll_Tcl_CreateInterp()) != NULL)
{
if (Tcl_InitStubs(interp, DYNAMIC_TCL_VER, 0))
{
Tcl_DeleteInterp(interp);
stubs_initialized = TRUE;
}
/* FIXME: When Tcl_InitStubs() was failed, how delete interp? */
}
}
return stubs_initialized;
}
#endif
void
tcl_end(void)
{
#ifdef DYNAMIC_TCL
if (hTclLib)
{
close_dll(hTclLib);
hTclLib = NULL;
}
#endif
}
/****************************************************************************
Tcl commands
****************************************************************************/
/*
* Replace standard "exit" command.
*
* Delete the Tcl interpreter; a new one will be created with the next
* :tcl command). The exit code is saved (and retrieved in tclexit()).
* Since Tcl's exit is never expected to return and this replacement
* does, then (except for a trivial case) additional Tcl commands will
* be run. Since the interpreter is now marked as deleted, an error
* will be returned -- typically "attempt to call eval in deleted
* interpreter". Hopefully, at this point, checks for TCL_ERROR take
* place and control percolates back up to Vim -- but with this new error
* string in the interpreter's result value. Therefore it would be
* useless for this routine to return the exit code via Tcl_SetResult().
*/
static int
exitcmd(
ClientData dummy UNUSED,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[])
{
int value = 0;
switch (objc)
{
case 2:
if (Tcl_GetIntFromObj(interp, objv[1], &value) != TCL_OK)
break;
/* FALLTHROUGH */
case 1:
tclinfo.exitvalue = value;
Tcl_DeleteInterp(interp);
break;
default:
Tcl_WrongNumArgs(interp, 1, objv, "?returnCode?");
}
return TCL_ERROR;
}
/*
* "::vim::beep" - what Vi[m] does best :-)
*/
static int
beepcmd(
ClientData dummy UNUSED,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[])
{
if (objc != 1)
{
Tcl_WrongNumArgs(interp, 1, objv, NULL);
return TCL_ERROR;
}
vim_beep(BO_LANG);
return TCL_OK;
}
/*
* "::vim::buffer list" - create a list of buffer commands.
* "::vim::buffer {N}" - create buffer command for buffer N.
* "::vim::buffer exists {N}" - test if buffer N exists.
* "::vim::buffer new" - create a new buffer (not implemented)
*/
static int
buffercmd(
ClientData dummy UNUSED,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[])
{
char *name;
buf_T *buf;
Tcl_Obj *resobj;
int err, n, idx;
enum {BCMD_EXISTS, BCMD_LIST};
static CONST84 char *bcmdoptions[] =
{
"exists", "list", (char *)0
};
if (objc < 2)
{
Tcl_WrongNumArgs(interp, 1, objv, "option");
return TCL_ERROR;
}
err = Tcl_GetIntFromObj(interp, objv[1], &n);
if (err == TCL_OK)
{
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 1, objv, "bufNumber");
return TCL_ERROR;
}
FOR_ALL_BUFFERS(buf)
{
if (buf->b_fnum == n)
{
name = tclgetbuffer(interp, buf);
if (name == NULL)
return TCL_ERROR;
Tcl_SetResult(interp, name, TCL_VOLATILE);
return TCL_OK;
}
}
Tcl_SetResult(interp, _("invalid buffer number"), TCL_STATIC);
return TCL_ERROR;
}
Tcl_ResetResult(interp); /* clear error from Tcl_GetIntFromObj */
err = Tcl_GetIndexFromObj(interp, objv[1], bcmdoptions, "option", 0, &idx);
if (err != TCL_OK)
return err;
switch (idx)
{
case BCMD_LIST:
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 2, objv, "");
err = TCL_ERROR;
break;
}
FOR_ALL_BUFFERS(buf)
{
name = tclgetbuffer(interp, buf);
if (name == NULL)
{
err = TCL_ERROR;
break;
}
Tcl_AppendElement(interp, name);
}
break;
case BCMD_EXISTS:
if (objc != 3)
{
Tcl_WrongNumArgs(interp, 2, objv, "bufNumber");
err = TCL_ERROR;
break;
}
err = Tcl_GetIntFromObj(interp, objv[2], &n);
if (err == TCL_OK)
{
buf = buflist_findnr(n);
resobj = Tcl_NewIntObj(buf != NULL);
Tcl_SetObjResult(interp, resobj);
}
break;
default:
Tcl_SetResult(interp, _("not implemented yet"), TCL_STATIC);
err = TCL_ERROR;
}
return err;
}
/*
* "::vim::window list" - create list of window commands.
*/
static int
windowcmd(
ClientData dummy UNUSED,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[])
{
char *what, *string;
win_T *win;
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 1, objv, "option");
return TCL_ERROR;
}
what = Tcl_GetStringFromObj(objv[1], NULL);
if (strcmp(what, "list") == 0)
{
FOR_ALL_WINDOWS(win)
{
string = tclgetwindow(interp, win);
if (string == NULL)
return TCL_ERROR;
Tcl_AppendElement(interp, string);
}
return TCL_OK;
}
Tcl_SetResult(interp, _("unknown option"), TCL_STATIC);
return TCL_ERROR;
}
/*
* flags for bufselfcmd and winselfcmd to indicate outstanding actions.
*/
#define FL_UPDATE_SCREEN (1<<0)
#define FL_UPDATE_CURBUF (1<<1)
#define FL_ADJUST_CURSOR (1<<2)
/*
* This function implements the buffer commands.
*/
static int
bufselfcmd(
ClientData ref,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[])
{
int opt, err, idx, flags;
int val1, val2, n, i;
buf_T *buf, *savebuf;
win_T *win, *savewin;
Tcl_Obj *resobj;
pos_T *pos;
char *line;
enum
{
BUF_APPEND, BUF_COMMAND, BUF_COUNT, BUF_DELCMD, BUF_DELETE, BUF_EXPR,
BUF_GET, BUF_INSERT, BUF_LAST, BUF_MARK, BUF_NAME, BUF_NUMBER,
BUF_OPTION, BUF_SET, BUF_WINDOWS
};
static CONST84 char *bufoptions[] =
{
"append", "command", "count", "delcmd", "delete", "expr",
"get", "insert", "last", "mark", "name", "number",
"option", "set", "windows", (char *)0
};
if (objc < 2)
{
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
return TCL_ERROR;
}
err = Tcl_GetIndexFromObj(interp, objv[1], bufoptions, "option", 0, &idx);
if (err != TCL_OK)
return err;
buf = (buf_T *)((struct ref *)ref)->vimobj;
savebuf = curbuf; curbuf = buf;
savewin = curwin; curwin = tclfindwin(buf);
flags = 0;
opt = 0;
switch (idx)
{
case BUF_COMMAND:
err = tcldoexcommand(interp, objc, objv, 2);
flags |= FL_UPDATE_SCREEN;
break;
case BUF_OPTION:
err = tclsetoption(interp, objc, objv, 2);
flags |= FL_UPDATE_SCREEN;
break;
case BUF_EXPR:
err = tclvimexpr(interp, objc, objv, 2);
break;
case BUF_NAME:
/*
* Get filename of buffer.
*/
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 2, objv, NULL);
err = TCL_ERROR;
break;
}
if (buf->b_ffname)
Tcl_SetResult(interp, (char *)buf->b_ffname, TCL_VOLATILE);
else
Tcl_SetResult(interp, "", TCL_STATIC);
break;
case BUF_LAST:
/*
* Get line number of last line.
*/
opt = 1;
/* fallthrough */
case BUF_COUNT:
/*
* Get number of lines in buffer.
*/
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 2, objv, NULL);
err = TCL_ERROR;
break;
}
val1 = (int)buf->b_ml.ml_line_count;
if (opt)
val1 = row2tcl(val1);
resobj = Tcl_NewIntObj(val1);
Tcl_SetObjResult(interp, resobj);
break;
case BUF_NUMBER:
/*
* Get buffer's number.
*/
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 2, objv, NULL);
err = TCL_ERROR;
break;
}
resobj = Tcl_NewIntObj((int)buf->b_fnum);
Tcl_SetObjResult(interp, resobj);
break;
case BUF_GET:
if (objc != 3 && objc != 4)
{
Tcl_WrongNumArgs(interp, 2, objv, "lineNumber ?lineNumber?");
err = TCL_ERROR;
break;
}
err = tclgetlinenum(interp, objv[2], &val1, buf);
if (err != TCL_OK)
break;
if (objc == 4)
{
err = tclgetlinenum(interp, objv[3], &val2, buf);
if (err != TCL_OK)
break;
if (val1 > val2)
{
n = val1; val1 = val2; val2 = n;
}
Tcl_ResetResult(interp);
for (n = val1; n <= val2 && err == TCL_OK; n++)
{
line = (char *)ml_get_buf(buf, (linenr_T)n, FALSE);
if (line)
Tcl_AppendElement(interp, line);
else
err = TCL_ERROR;
}
}
else { /* objc == 3 */
line = (char *)ml_get_buf(buf, (linenr_T)val1, FALSE);
Tcl_SetResult(interp, line, TCL_VOLATILE);
}
break;
case BUF_SET:
if (objc != 4 && objc != 5)
{
Tcl_WrongNumArgs(interp, 3, objv, "lineNumber ?lineNumber? stringOrList");
err = TCL_ERROR;
break;
}
err = tclgetlinenum(interp, objv[2], &val1, buf);
if (err != TCL_OK)
return TCL_ERROR;
if (objc == 4)
{
/*
* Replace one line with a string.
* $buf set {n} {string}
*/
line = Tcl_GetStringFromObj(objv[3], NULL);
if (u_savesub((linenr_T)val1) != OK)
{
Tcl_SetResult(interp, _("cannot save undo information"), TCL_STATIC);
err = TCL_ERROR;
}
else
if (ml_replace((linenr_T)val1, (char_u *)line, TRUE) != OK)
{
Tcl_SetResult(interp, _("cannot replace line"), TCL_STATIC);
err = TCL_ERROR;
}
else
{
changed_bytes((linenr_T)val1, 0);
flags |= FL_UPDATE_CURBUF;
}
break;
}
else
{
/*
* Replace several lines with the elements of a Tcl list.
* $buf set {n} {m} {list}
* If the list contains more than {m}-{n}+1 elements, they
* are * inserted after line {m}. If the list contains fewer
* elements, * the lines from {n}+length({list}) through {m}
* are deleted.
*/
int lc;
Tcl_Obj **lv;
err = tclgetlinenum(interp, objv[3], &val2, buf);
if (err != TCL_OK)
break;
err = Tcl_ListObjGetElements(interp, objv[4], &lc, &lv);
if (err != TCL_OK)
break;
if (val1 > val2)
{
n = val1;
val1 = val2;
val2 = n;
}
n = val1;
if (u_save((linenr_T)(val1 - 1), (linenr_T)(val2 + 1)) != OK)
{
Tcl_SetResult(interp, _("cannot save undo information"),
TCL_STATIC);
err = TCL_ERROR;
break;
}
flags |= FL_UPDATE_CURBUF;
for (i = 0; i < lc && n <= val2; i++)
{
line = Tcl_GetStringFromObj(lv[i], NULL);
if (ml_replace((linenr_T)n, (char_u *)line, TRUE) != OK)
goto setListError;
++n;
}
if (i < lc)
{
/* append lines */
do
{
line = Tcl_GetStringFromObj(lv[i], NULL);
if (ml_append((linenr_T)(n - 1),
(char_u *)line, 0, FALSE) != OK)
goto setListError;
++n;
++i;
} while (i < lc);
}
else if (n <= val2)
{
/* did not replace all lines, delete */
i = n;
do
{
if (ml_delete((linenr_T)i, FALSE) != OK)
goto setListError;
++n;
} while (n <= val2);
}
lc -= val2 - val1 + 1; /* number of lines to be replaced */
mark_adjust((linenr_T)val1, (linenr_T)val2, (long)MAXLNUM,
(long)lc);
changed_lines((linenr_T)val1, 0, (linenr_T)val2 + 1, (long)lc);
break;
setListError:
u_undo(1); /* ??? */
Tcl_SetResult(interp, _("cannot set line(s)"), TCL_STATIC);
err = TCL_ERROR;
}
break;
case BUF_DELETE:
if (objc != 3 && objc != 4)
{
Tcl_WrongNumArgs(interp, 3, objv, "lineNumber ?lineNumber?");
err = TCL_ERROR;
break;
}
err = tclgetlinenum(interp, objv[2], &val1, buf);
if (err != TCL_OK)
break;
val2 = val1;
if (objc == 4)
{
err = tclgetlinenum(interp, objv[3], &val2, buf);
if (err != TCL_OK)
return err;
if (val1 > val2)
{
i = val1; val1 = val2; val2 = i;
}
}
n = val2 - val1 + 1;
if (u_savedel((linenr_T)val1, (long)n) != OK)
{
Tcl_SetResult(interp, _("cannot save undo information"),
TCL_STATIC);
err = TCL_ERROR;
break;
}
for (i = 0; i < n; i++)
{
ml_delete((linenr_T)val1, FALSE);
err = vimerror(interp);
if (err != TCL_OK)
break;
}
if (i > 0)
deleted_lines_mark((linenr_T)val1, (long)i);
flags |= FL_ADJUST_CURSOR|FL_UPDATE_SCREEN;
break;
case BUF_MARK:
if (objc != 3)
{
Tcl_WrongNumArgs(interp, 2, objv, "markName");
err = TCL_ERROR;
break;
}
line = Tcl_GetStringFromObj(objv[2], NULL);
pos = NULL;
if (line[0] != '\0' && line[1] == '\0')
{
pos = getmark(line[0], FALSE);
}
if (pos == NULL)
{
Tcl_SetResult(interp, _("invalid mark name"), TCL_STATIC);
err = TCL_ERROR;
break;
}
err = vimerror(interp);
if (err != TCL_OK)
break;
if (pos->lnum <= 0)
{
Tcl_SetResult(interp, _("mark not set"), TCL_STATIC);
err = TCL_ERROR;
}
else
{
char rbuf[64];
sprintf(rbuf, _("row %d column %d"),
(int)row2tcl(pos->lnum), (int)col2tcl(pos->col));
Tcl_SetResult(interp, rbuf, TCL_VOLATILE);
}
break;
case BUF_INSERT:
opt = 1;
/* fallthrough */
case BUF_APPEND:
if (objc != 4)
{
Tcl_WrongNumArgs(interp, 2, objv, "lineNum text");
err = TCL_ERROR;
break;
}
err = tclgetlinenum(interp, objv[2], &val1, buf);
if (err != TCL_OK)
break;
if (opt)
--val1;
if (u_save((linenr_T)val1, (linenr_T)(val1+1)) != OK)
{
Tcl_SetResult(interp, _("cannot save undo information"),
TCL_STATIC);
err = TCL_ERROR;
break;
}
line = Tcl_GetStringFromObj(objv[3], NULL);
if (ml_append((linenr_T)val1, (char_u *)line, 0, FALSE) != OK)
{
Tcl_SetResult(interp, _("cannot insert/append line"),
TCL_STATIC);
err = TCL_ERROR;
break;
}
appended_lines_mark((linenr_T)val1, 1L);
flags |= FL_UPDATE_SCREEN;
break;
case BUF_WINDOWS:
/*
* Return list of window commands.
*/
if (objc != 2)
{
Tcl_WrongNumArgs(interp, 2, objv, NULL);
err = TCL_ERROR;
break;
}
Tcl_ResetResult(interp);
FOR_ALL_WINDOWS(win)
{
if (win->w_buffer == buf)
{
line = tclgetwindow(interp, win);
if (line != NULL)
Tcl_AppendElement(interp, line);
else
{
err = TCL_ERROR;
break;
}
}
}
break;
case BUF_DELCMD:
/*
* Register deletion callback.
* TODO: Should be able to register multiple callbacks
*/
if (objc != 3)
{
Tcl_WrongNumArgs(interp, 2, objv, "command");
err = TCL_ERROR;
break;
}
err = tclsetdelcmd(interp, buf->b_tcl_ref, (void *)buf, objv[2]);
break;
default:
Tcl_SetResult(interp, _("not implemented yet"), TCL_STATIC);
err = TCL_ERROR;
}
if (flags & FL_UPDATE_CURBUF)
redraw_curbuf_later(NOT_VALID);
curbuf = savebuf;
curwin = savewin;
if (flags & FL_ADJUST_CURSOR)
check_cursor();
if (flags & (FL_UPDATE_SCREEN | FL_UPDATE_CURBUF))
update_screen(NOT_VALID);
return err;
}
/*
* This function implements the window commands.
*/
static int
winselfcmd(
ClientData ref,
Tcl_Interp *interp,
int objc,
Tcl_Obj *CONST objv[])
{
int err, idx, flags;
int val1, val2;
Tcl_Obj *resobj;
win_T *savewin, *win;
buf_T *savebuf;
char *str;
enum
{
WIN_BUFFER, WIN_COMMAND, WIN_CURSOR, WIN_DELCMD, WIN_EXPR,
WIN_HEIGHT, WIN_OPTION
};
static CONST84 char *winoptions[] =
{
"buffer", "command", "cursor", "delcmd", "expr",
"height", "option", (char *)0
};
if (objc < 2)
{
Tcl_WrongNumArgs(interp, 1, objv, "option ?arg ...?");
return TCL_ERROR;
}
err = Tcl_GetIndexFromObj(interp, objv[1], winoptions, "option", 0, &idx);
if (err != TCL_OK)
return TCL_ERROR;
win = (win_T *)((struct ref *)ref)->vimobj;
savewin = curwin; curwin = win;
savebuf = curbuf; curbuf = win->w_buffer;
flags = 0;
switch (idx)
{
case WIN_OPTION:
err = tclsetoption(interp, objc, objv, 2);
flags |= FL_UPDATE_SCREEN;
break;
case WIN_COMMAND:
err = tcldoexcommand(interp, objc, objv, 2);
flags |= FL_UPDATE_SCREEN;
break;
case WIN_EXPR:
err = tclvimexpr(interp, objc, objv, 2);
break;
case WIN_HEIGHT:
if (objc == 3)
{
err = Tcl_GetIntFromObj(interp, objv[2], &val1);
if (err != TCL_OK)
break;
#ifdef FEAT_GUI
need_mouse_correct = TRUE;