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tk
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tk_util.c
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C/C++ Source or Header
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1996-07-19
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5KB
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251 lines
/*-
* Copyright (c) 1993, 1994
* The Regents of the University of California. All rights reserved.
* Copyright (c) 1993, 1994, 1995, 1996
* Keith Bostic. All rights reserved.
*
* See the LICENSE file for redistribution information.
*/
#include "config.h"
#ifndef lint
static const char sccsid[] = "@(#)tk_util.c 8.14 (Berkeley) 7/19/96";
#endif /* not lint */
#include <sys/types.h>
#include <sys/queue.h>
#include <bitstring.h>
#include <errno.h>
#include <limits.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <termios.h>
#include <unistd.h>
#include "../common/common.h"
#include "tki.h"
static int tk_op_push __P((SCR *, TK_PRIVATE *, e_event_t));
/*
* tk_op --
* Events provided directly from Tcl/Tk.
*
* PUBLIC: int tk_op __P((ClientData, Tcl_Interp *, int, char *[]));
*/
int
tk_op(clientData, interp, argc, argv)
ClientData clientData;
Tcl_Interp *interp;
int argc;
char *argv[];
{
SCR *sp;
TK_PRIVATE *tkp;
sp = __global_list->dq.cqh_first; /* XXX */
tkp = (TK_PRIVATE *)clientData;
switch (argv[1][0]) {
case 'q':
if (!strcmp(argv[1], "quit"))
return (tk_op_push(sp, tkp, E_QUIT));
break;
case 'w':
if (!strcmp(argv[1], "write"))
return (tk_op_push(sp, tkp, E_WRITE));
if (!strcmp(argv[1], "writequit")) {
if (tk_op_push(sp, tkp, E_WRITE) != TCL_OK)
return (TCL_ERROR);
if (tk_op_push(sp, tkp, E_QUIT) != TCL_OK)
return (TCL_ERROR);
return (TCL_OK);
}
break;
}
(void)Tcl_VarEval(tkp->interp,
"tk_err {", argv[1], ": unknown event", "}", NULL);
return (TCL_OK);
}
/*
* tk_op_push --
* Push an event.
*/
static int
tk_op_push(sp, tkp, et)
SCR *sp;
TK_PRIVATE *tkp;
e_event_t et;
{
EVENT *evp;
CALLOC(sp, evp, EVENT *, 1, sizeof(EVENT));
if (evp == NULL)
return (TCL_ERROR);
evp->e_event = et;
TAILQ_INSERT_TAIL(&tkp->evq, evp, q);
return (TCL_OK);
}
/*
* tk_opt_init --
* Initialize the values of the current options.
*
* PUBLIC: int tk_opt_init __P((ClientData, Tcl_Interp *, int, char *[]));
*/
int
tk_opt_init(clientData, interp, argc, argv)
ClientData clientData;
Tcl_Interp *interp;
int argc;
char *argv[];
{
OPTLIST const *op;
SCR *sp;
TK_PRIVATE *tkp;
int off;
char buf[20];
sp = __global_list->dq.cqh_first; /* XXX */
tkp = (TK_PRIVATE *)clientData;
for (op = optlist, off = 0; op->name != NULL; ++op, ++off) {
if (F_ISSET(op, OPT_NDISP))
continue;
switch (op->type) {
case OPT_0BOOL:
case OPT_1BOOL:
(void)Tcl_VarEval(tkp->interp, "set tko_",
op->name, O_ISSET(sp, off) ? " 1" : " 0", NULL);
break;
case OPT_NUM:
(void)snprintf(buf,
sizeof(buf), " %lu", O_VAL(sp, off));
(void)Tcl_VarEval(tkp->interp,
"set tko_", op->name, buf, NULL);
break;
case OPT_STR:
(void)Tcl_VarEval(tkp->interp,
"set tko_", op->name, " {",
O_STR(sp, off) == NULL ? "" : O_STR(sp, off),
"}", NULL);
break;
}
}
return (TCL_OK);
}
/*
* tk_opt_set --
* Set an options button.
*
* PUBLIC: int tk_opt_set __P((ClientData, Tcl_Interp *, int, char *[]));
*/
int
tk_opt_set(clientData, interp, argc, argv)
ClientData clientData;
Tcl_Interp *interp;
int argc;
char *argv[];
{
ARGS *ap[2], a, b;
GS *gp;
SCR *sp;
int rval;
void (*msg) __P((SCR *, mtype_t, char *, size_t));
char buf[64];
gp = __global_list;
sp = gp->dq.cqh_first; /* XXX */
switch (argc) {
case 2:
a.bp = argv[1] + (sizeof("tko_") - 1);
a.len = strlen(a.bp);
break;
case 3:
a.bp = buf;
a.len = snprintf(buf, sizeof(buf),
"%s%s", atoi(argv[2]) ? "no" : "", argv[1]);
break;
default:
abort();
}
b.bp = NULL;
b.len = 0;
ap[0] = &a;
ap[1] = &b;
/* Use Tcl/Tk for error messages. */
msg = gp->scr_msg;
gp->scr_msg = tk_msg;
rval = opts_set(sp, ap, NULL);
gp->scr_msg = msg;
return (rval ? TCL_ERROR : TCL_OK);
}
/*
* tk_version --
* Display the version in Tcl/Tk.
*
* PUBLIC: int tk_version __P((ClientData, Tcl_Interp *, int, char *[]));
*/
int
tk_version(clientData, interp, argc, argv)
ClientData clientData;
Tcl_Interp *interp;
int argc;
char *argv[];
{
EXCMD cmd;
GS *gp;
SCR *sp;
int rval;
void (*msg) __P((SCR *, mtype_t, char *, size_t));
gp = __global_list;
sp = gp->dq.cqh_first; /* XXX */
msg = gp->scr_msg;
gp->scr_msg = tk_msg;
ex_cinit(&cmd, C_VERSION, 0, OOBLNO, OOBLNO, 0, NULL);
rval = cmd.cmd->fn(sp, &cmd);
(void)ex_fflush(sp);
gp->scr_msg = msg;
return (rval ? TCL_ERROR : TCL_OK);
}
/*
* tk_msg --
* Display an error message in Tcl/Tk.
*
* PUBLIC: void tk_msg __P((SCR *, mtype_t, char *, size_t));
*/
void
tk_msg(sp, mtype, line, rlen)
SCR *sp;
mtype_t mtype;
char *line;
size_t rlen;
{
TK_PRIVATE *tkp;
char buf[2048];
if (line == NULL)
return;
tkp = TKP(sp);
(void)snprintf(buf, sizeof(buf), "%.*s", (int)rlen, line);
(void)Tcl_VarEval(tkp->interp, "tk_err {", buf, "}", NULL);
}