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Comparing rxvt-unicode/src/misc.C (file contents):
Revision 1.3 by pcg, Sat Jan 31 00:20:21 2004 UTC vs.
Revision 1.44 by ayin, Mon Sep 3 07:31:12 2007 UTC

1/*--------------------------------*-C-*---------------------------------* 1/*----------------------------------------------------------------------*
2 * File: misc.c 2 * File: misc.C
3 *----------------------------------------------------------------------* 3 *----------------------------------------------------------------------*
4 * $Id: misc.C,v 1.3 2004/01/31 00:20:21 pcg Exp $
5 * 4 *
6 * All portions of code are copyright by their respective author/s. 5 * All portions of code are copyright by their respective author/s.
7 * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston 6 * Copyright (c) 1996 mj olesen <olesen@me.QueensU.CA> Queen's Univ at Kingston
8 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de> 7 * Copyright (c) 1997,1998 Oezguer Kesim <kesim@math.fu-berlin.de>
9 * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com> 8 * Copyright (c) 1998-2000 Geoff Wing <gcw@pobox.com>
9 * Copyright (c) 2003-2006 Marc Lehmann <pcg@goof.com>
10 * 10 *
11 * This program is free software; you can redistribute it and/or modify 11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by 12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or 13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version. 14 * (at your option) any later version.
… …
23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 23 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24 *----------------------------------------------------------------------*/ 24 *----------------------------------------------------------------------*/
25 25
26#include "../config.h" /* NECESSARY */ 26#include "../config.h" /* NECESSARY */
27#include "rxvt.h" /* NECESSARY */ 27#include "rxvt.h" /* NECESSARY */
28#include "misc.intpro" /* PROTOS for internal routines */
29 28
30/* EXTPROTO */
31char * 29char *
32rxvt_strdup (const char *str) 30rxvt_wcstombs (const wchar_t *str, int len)
33{ 31{
34 return str ? strdup (str) : 0; 32 if (len < 0) len = wcslen (str);
35}
36 33
37/* EXTPROTO */ 34 mbstate mbs;
35 char *r = (char *)rxvt_malloc (len * MB_CUR_MAX + 1);
36
37 char *dst = r;
38 while (len--)
39 {
40 ssize_t l = wcrtomb (dst, *str++, mbs);
41
42 if (l < 0)
43 *dst++ = '?';
44 else
45 dst += l;
46 }
47
48 *dst++ = 0;
49
50 return (char *)rxvt_realloc (r, dst - r);
51}
52
53wchar_t *
54rxvt_mbstowcs (const char *str, int len)
55{
56 if (len < 0) len = strlen (str);
57
58 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t));
59
60 if ((ssize_t)mbstowcs (r, str, len + 1) < 0)
61 *r = 0;
62
63 return r;
64}
65
66char *
67rxvt_wcstoutf8 (const wchar_t *str, int len)
68{
69 if (len < 0) len = wcslen (str);
70
71 char *r = (char *)rxvt_malloc (len * 4 + 1);
72 char *p = r;
73
74 while (len--)
75 {
76 unicode_t w = *str++ & UNICODE_MASK;
77
78 if (w < 0x000080)
79 *p++ = w;
80 else if (w < 0x000800)
81 *p++ = 0xc0 | ( w >> 6),
82 *p++ = 0x80 | ( w & 0x3f);
83 else if (w < 0x010000)
84 *p++ = 0xe0 | ( w >> 12 ),
85 *p++ = 0x80 | ((w >> 6) & 0x3f),
86 *p++ = 0x80 | ( w & 0x3f);
87 else if (w < 0x110000)
88 *p++ = 0xf0 | ( w >> 18),
89 *p++ = 0x80 | ((w >> 12) & 0x3f),
90 *p++ = 0x80 | ((w >> 6) & 0x3f),
91 *p++ = 0x80 | ( w & 0x3f);
92 else
93 *p++ = '?';
94 }
95
96 *p++ = 0;
97
98 return (char *)rxvt_realloc (r, p - r);
99}
100
101wchar_t *
102rxvt_utf8towcs (const char *str, int len)
103{
104 if (len < 0) len = strlen (str);
105
106 wchar_t *r = (wchar_t *)rxvt_malloc ((len + 1) * sizeof (wchar_t)),
107 *p = r;
108
109 unsigned char *s = (unsigned char *)str,
110 *e = s + len;
111
112 for (;;)
113 {
114 len = e - s;
115
116 if (len == 0)
117 break;
118 else if (s[0] < 0x80)
119 *p++ = *s++;
120 else if (len >= 2
121 && s[0] >= 0xc2 && s[0] <= 0xdf
122 && (s[1] & 0xc0) == 0x80)
123 {
124 *p++ = ((s[0] & 0x1f) << 6)
125 | (s[1] & 0x3f);
126 s += 2;
127 }
128 else if (len >= 3
129 && ( (s[0] == 0xe0 && s[1] >= 0xa0 && s[1] <= 0xbf)
130 || (s[0] >= 0xe1 && s[0] <= 0xec && s[1] >= 0x80 && s[1] <= 0xbf)
131 || (s[0] == 0xed && s[1] >= 0x80 && s[1] <= 0x9f)
132 || (s[0] >= 0xee && s[0] <= 0xef && s[1] >= 0x80 && s[1] <= 0xbf)
133 )
134 && (s[2] & 0xc0) == 0x80)
135 {
136 *p++ = ((s[0] & 0x0f) << 12)
137 | ((s[1] & 0x3f) << 6)
138 | (s[2] & 0x3f);
139 s += 3;
140 }
141 else if (len >= 4
142 && ( (s[0] == 0xf0 && s[1] >= 0x90 && s[1] <= 0xbf)
143 || (s[0] >= 0xf1 && s[0] <= 0xf3 && s[1] >= 0x80 && s[1] <= 0xbf)
144 || (s[0] == 0xf4 && s[1] >= 0x80 && s[1] <= 0x8f)
145 )
146 && (s[2] & 0xc0) == 0x80
147 && (s[3] & 0xc0) == 0x80)
148 {
149 *p++ = ((s[0] & 0x07) << 18)
150 | ((s[1] & 0x3f) << 12)
151 | ((s[2] & 0x3f) << 6)
152 | (s[3] & 0x3f);
153 s += 4;
154 }
155 else
156 {
157 *p++ = 0xfffd;
158 s++;
159 }
160 }
161
162 *p = 0;
163
164 return r;
165}
166
167char *
168rxvt_r_basename (const char *str) NOTHROW
169{
170 char *base = strrchr (str, '/');
171
172 return (char *) (base ? base + 1 : str);
173}
174
175/*
176 * Print an error message
177 */
178void
179rxvt_vlog (const char *fmt, va_list arg_ptr) NOTHROW
180{
181 char msg[1024];
182
183 vsnprintf (msg, sizeof msg, fmt, arg_ptr);
184
185 if (GET_R && GET_R->log_hook)
186 (*GET_R->log_hook) (msg);
187 else
188 write (STDOUT_FILENO, msg, strlen (msg));
189}
190
191void
192rxvt_log (const char *fmt,...) NOTHROW
193{
194 va_list arg_ptr;
195
196 va_start (arg_ptr, fmt);
197 rxvt_vlog (fmt, arg_ptr);
198 va_end (arg_ptr);
199}
200
201/*
202 * Print an error message
203 */
204void
205rxvt_warn (const char *fmt,...) NOTHROW
206{
207 va_list arg_ptr;
208
209 rxvt_log ("%s: ", RESNAME);
210
211 va_start (arg_ptr, fmt);
212 rxvt_vlog (fmt, arg_ptr);
213 va_end (arg_ptr);
214}
215
216void
217rxvt_fatal (const char *fmt,...) THROW ((class rxvt_failure_exception))
218{
219 va_list arg_ptr;
220
221 rxvt_log ("%s: ", RESNAME);
222
223 va_start (arg_ptr, fmt);
224 rxvt_vlog (fmt, arg_ptr);
225 va_end (arg_ptr);
226
227 rxvt_exit_failure ();
228}
229
230void
231rxvt_exit_failure () THROW ((class rxvt_failure_exception))
232{
233 static class rxvt_failure_exception rxvt_failure_exception;
234 throw (rxvt_failure_exception);
235}
236
237/*
238 * remove leading/trailing space in place.
239 */
38char * 240char *
39rxvt_r_basename(const char *str) 241rxvt_Str_trim (char *str) NOTHROW
40{ 242{
41 char *base = STRRCHR(str, '/'); 243 char *r, *s;
42 244
43 return (char *)(base ? base + 1 : str); 245 if (!str || !*str) /* shortcut */
44}
45
46/*
47 * Print an error message
48 */
49/* EXTPROTO */
50void
51rxvt_print_error(const char *fmt,...)
52{
53 va_list arg_ptr;
54
55 va_start(arg_ptr, fmt);
56 fprintf(stderr, APL_NAME ": ");
57 vfprintf(stderr, fmt, arg_ptr);
58 fprintf(stderr, "\n");
59 va_end(arg_ptr);
60}
61
62/*
63 * check that the first characters of S1 match S2
64 *
65 * No Match
66 * return: 0
67 * Match
68 * return: STRLEN (S2)
69 */
70/* EXTPROTO */
71int
72rxvt_Str_match(const char *s1, const char *s2)
73{
74 int n = STRLEN(s2);
75
76 return ((STRNCMP(s1, s2, n) == 0) ? n : 0);
77}
78
79/* EXTPROTO */
80const char *
81rxvt_Str_skip_space(const char *str)
82{
83 if (str)
84 while (*str && isspace(*str))
85 str++;
86 return str; 246 return str;
87}
88 247
89/*
90 * remove leading/trailing space and strip-off leading/trailing quotes.
91 * in place.
92 */
93/* EXTPROTO */
94char *
95rxvt_Str_trim(char *str)
96{
97 char *r, *s;
98 int n;
99
100 if (!str || !*str) /* shortcut */
101 return str;
102
103/* skip leading spaces */ 248 /* skip leading spaces */
104 for (s = str; *s && isspace(*s); s++) ; 249 for (s = str; *s && isspace (*s); s++) ;
250
105/* goto end of string */ 251 /* goto end of string */
106 for (n = 0, r = s; *r++; n++) ; 252 r = s + strlen (s) - 1;
107 r -= 2;
108/* dump return */
109 if (n > 0 && *r == '\n')
110 n--, r--;
111/* backtrack along trailing spaces */
112 for (; n > 0 && isspace(*r); r--, n--) ;
113/* skip matching leading/trailing quotes */
114 if (*s == '"' && *r == '"' && n > 1) {
115 s++;
116 n -= 2;
117 }
118/* copy back over: forwards copy */
119 for (r = str; n; n--)
120 *r++ = *s++;
121 *r = '\0';
122 253
254 /* dump return and other trailing whitespace */
255 while (r > s && isspace (*r))
256 r--;
257
258 memmove (str, s, r + 1 - s);
259 str[r + 1 - s] = 0;
260
123 return str; 261 return str;
124} 262}
125 263
126/* 264/*
127 * in-place interpretation of string: 265 * in-place interpretation of string:
128 * 266 *
… …
135 * "M-x" prefixed strings, append "\r" if needed 273 * "M-x" prefixed strings, append "\r" if needed
136 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed 274 * "\E]" prefixed strings (XTerm escape sequence) append ST if needed
137 * 275 *
138 * returns the converted string length 276 * returns the converted string length
139 */ 277 */
140/* EXTPROTO */
141int 278int
142rxvt_Str_escaped(char *str) 279rxvt_Str_escaped (char *str) NOTHROW
143{ 280{
144 char ch, *s, *d; 281 char ch, *s, *d;
145 int i, num, append = 0; 282 int i, num, append = 0;
146 283
147 if (!str || !*str) 284 if (!str || !*str)
148 return 0; 285 return 0;
149 286
150 d = s = str; 287 d = s = str;
151 288
152 if (*s == 'M' && s[1] == '-') { 289 if (*s == 'M' && s[1] == '-')
290 {
153 /* Emacs convenience, replace leading `M-..' with `\E..' */ 291 /* Emacs convenience, replace leading `M-..' with `\E..' */
154 *d++ = C0_ESC; 292 *d++ = C0_ESC;
155 s += 2; 293 s += 2;
156 if (toupper(*s) == 'X') 294 if (toupper (*s) == 'X')
157 /* append carriage-return for `M-xcommand' */ 295 /* append carriage-return for `M-xcommand' */
158 for (*d++ = 'x', append = '\r', s++; isspace(*s); s++) ; 296 for (*d++ = 'x', append = '\r', s++; isspace (*s); s++) ;
159 } 297 }
160 for (; (ch = *s++);) { 298 for (; (ch = *s++);)
299 {
161 if (ch == '\\') { 300 if (ch == '\\')
301 {
162 ch = *s++; 302 ch = *s++;
163 if (ch >= '0' && ch <= '7') { /* octal */ 303 if (ch >= '0' && ch <= '7')
164 num = ch - '0'; 304 { /* octal */
305 num = ch - '0';
165 for (i = 0; i < 2; i++, s++) { 306 for (i = 0; i < 2; i++, s++)
166 ch = *s; 307 {
308 ch = *s;
167 if (ch < '0' || ch > '7') 309 if (ch < '0' || ch > '7')
168 break; 310 break;
169 num = num * 8 + ch - '0'; 311 num = num * 8 + ch - '0';
170 } 312 }
171 ch = (char)num; 313 ch = (char)num;
172 } else if (ch == 'a') 314 }
315 else if (ch == 'a')
173 ch = C0_BEL; /* bell */ 316 ch = C0_BEL; /* bell */
174 else if (ch == 'b') 317 else if (ch == 'b')
175 ch = C0_BS; /* backspace */ 318 ch = C0_BS; /* backspace */
176 else if (ch == 'E' || ch == 'e') 319 else if (ch == 'E' || ch == 'e')
177 ch = C0_ESC; /* escape */ 320 ch = C0_ESC; /* escape */
321 else if (ch == 'n')
322 ch = '\n'; /* newline */
323 else if (ch == 'r')
324 ch = '\r'; /* carriage-return */
325 else if (ch == 't')
326 ch = C0_HT; /* tab */
327 }
178 else if (ch == 'n') 328 else if (ch == '^')
179 ch = '\n'; /* newline */ 329 {
180 else if (ch == 'r')
181 ch = '\r'; /* carriage-return */
182 else if (ch == 't')
183 ch = C0_HT; /* tab */
184 } else if (ch == '^') {
185 ch = *s++; 330 ch = *s++;
186 ch = toupper(ch); 331 ch = toupper (ch);
187 ch = (ch == '?' ? 127 : (ch - '@')); 332 ch = (ch == '?' ? 127 : (ch - '@'));
188 } 333 }
189 *d++ = ch; 334 *d++ = ch;
190 } 335 }
191 336
192/* ESC] is an XTerm escape sequence, must be terminated */ 337 /* ESC] is an XTerm escape sequence, must be terminated */
193 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']') 338 if (*str == '\0' && str[1] == C0_ESC && str[2] == ']')
194 append = CHAR_ST; 339 append = CHAR_ST;
195 340
196/* add trailing character as required */ 341 /* add trailing character as required */
197 if (append && d[-1] != append) 342 if (append && d[-1] != append)
198 *d++ = append; 343 *d++ = append;
199 *d = '\0'; 344 *d = '\0';
200 345
201 return (d - str); 346 return (d - str);
202} 347}
203 348
204/* 349/*
205 * Split a comma-separated string into an array, stripping leading and 350 * Split a comma-separated string into an array, stripping leading and
206 * trailing spaces (and paired quotes) from each entry. Empty strings 351 * trailing spaces from each entry. Empty strings are properly returned
207 * are properly returned
208 * Caller should free each entry and array when done 352 * Caller should free each entry and array when done
209 */ 353 */
210/* EXTPROTO */
211char ** 354char **
212rxvt_splitcommastring(const char *cs) 355rxvt_splitcommastring (const char *cs) NOTHROW
213{ 356{
214 int l, n, p; 357 int l, n, p;
215 const char *s, *t; 358 const char *s, *t;
216 char **ret; 359 char **ret;
217 360
218 if ((s = cs) == NULL) 361 if ((s = cs) == NULL)
219 s = ""; 362 s = "";
220 363
221 for (n = 1, t = s; *t; t++) 364 for (n = 1, t = s; *t; t++)
222 if (*t == ',') 365 if (*t == ',')
223 n++; 366 n++;
367
224 ret = (char **)malloc((n + 1) * sizeof(char *)); 368 ret = (char **)malloc ((n + 1) * sizeof (char *));
225 ret[n] = NULL; 369 ret[n] = NULL;
226 370
227 for (l = 0, t = s; l < n; l++) { 371 for (l = 0, t = s; l < n; l++)
372 {
228 for ( ; *t && *t != ','; t++) ; 373 for ( ; *t && *t != ','; t++) ;
229 p = t - s; 374 p = t - s;
230 ret[l] = (char *)malloc(p + 1); 375 ret[l] = (char *)malloc (p + 1);
231 strncpy(ret[l], s, p); 376 strncpy (ret[l], s, p);
232 ret[l][p] = '\0'; 377 ret[l][p] = '\0';
233 rxvt_Str_trim(ret[l]); 378 rxvt_Str_trim (ret[l]);
234 s = ++t; 379 s = ++t;
235 } 380 }
381
236 return ret; 382 return ret;
237} 383}
238 384
239/*----------------------------------------------------------------------*
240 * file searching
241 */
242
243/* #define DEBUG_SEARCH_PATH */
244
245#if defined (XPM_BACKGROUND) || (MENUBAR_MAX)
246/*
247 * search for FILE in the current working directory, and within the
248 * colon-delimited PATHLIST, adding the file extension EXT if required.
249 *
250 * FILE is either semi-colon or zero terminated
251 */
252/* INTPROTO */
253char *
254rxvt_File_search_path(const char *pathlist, const char *file, const char *ext)
255{
256 int maxpath, len;
257 const char *p, *path;
258 char name[256];
259
260 if (!access(file, R_OK)) /* found (plain name) in current directory */
261 return STRDUP(file);
262
263/* semi-colon delimited */
264 if ((p = STRCHR(file, ';')))
265 len = (p - file);
266 else
267 len = STRLEN(file);
268
269#ifdef DEBUG_SEARCH_PATH
270 getcwd(name, sizeof(name));
271 fprintf(stderr, "pwd: \"%s\"\n", name);
272 fprintf(stderr, "find: \"%.*s\"\n", len, file);
273#endif
274
275/* leave room for an extra '/' and trailing '\0' */
276 maxpath = sizeof(name) - (len + (ext ? STRLEN(ext) : 0) + 2);
277 if (maxpath <= 0)
278 return NULL;
279
280/* check if we can find it now */
281 STRNCPY(name, file, len);
282 name[len] = '\0';
283
284 if (!access(name, R_OK))
285 return STRDUP(name);
286 if (ext) {
287 STRCAT(name, ext);
288 if (!access(name, R_OK))
289 return STRDUP(name);
290 }
291 for (path = pathlist; path != NULL && *path != '\0'; path = p) {
292 int n;
293
294 /* colon delimited */
295 if ((p = STRCHR(path, ':')) == NULL)
296 p = STRCHR(path, '\0');
297
298 n = (p - path);
299 if (*p != '\0')
300 p++;
301
302 if (n > 0 && n <= maxpath) {
303 STRNCPY(name, path, n);
304 if (name[n - 1] != '/')
305 name[n++] = '/';
306 name[n] = '\0';
307 STRNCAT(name, file, len);
308
309 if (!access(name, R_OK))
310 return STRDUP(name);
311 if (ext) {
312 STRCAT(name, ext);
313 if (!access(name, R_OK))
314 return STRDUP(name);
315 }
316 }
317 }
318 return NULL;
319}
320
321/* EXTPROTO */
322char *
323rxvt_File_find(const char *file, const char *ext, const char *path)
324{
325 char *f;
326
327 if (file == NULL || *file == '\0')
328 return NULL;
329
330/* search environment variables here too */
331 if ((f = rxvt_File_search_path(path, file, ext)) == NULL)
332#ifdef PATH_ENV
333 if ((f = rxvt_File_search_path(getenv(PATH_ENV), file, ext)) == NULL)
334#endif
335 f = rxvt_File_search_path(getenv("PATH"), file, ext);
336
337#ifdef DEBUG_SEARCH_PATH
338 if (f)
339 fprintf(stderr, "found: \"%s\"\n", f);
340#endif
341
342 return f;
343}
344#endif /* defined (XPM_BACKGROUND) || (MENUBAR_MAX) */
345
346/*----------------------------------------------------------------------*
347 * miscellaneous drawing routines
348 */
349
350/*
351 * Draw top/left and bottom/right border shadows around windows
352 */
353#if defined(RXVT_SCROLLBAR) || defined(MENUBAR)
354/* EXTPROTO */
355void 385void
356rxvt_Draw_Shadow(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int h) 386rxvt_freecommastring (char **cs) NOTHROW
357{ 387{
358 int shadow; 388 for (int i = 0; cs[i]; ++i)
389 free (cs[i]);
359 390
360 shadow = (w == 0 || h == 0) ? 1 : SHADOW; 391 free (cs);
361 w += x - 1;
362 h += y - 1;
363 for (; shadow-- > 0; x++, y++, w--, h--) {
364 XDrawLine(Xdisplay, win, topShadow, x, y, w, y);
365 XDrawLine(Xdisplay, win, topShadow, x, y, x, h);
366 XDrawLine(Xdisplay, win, botShadow, w, h, w, y + 1);
367 XDrawLine(Xdisplay, win, botShadow, w, h, x + 1, h);
368 }
369} 392}
370#endif
371 393
372/* button shapes */
373#ifdef MENUBAR
374/* EXTPROTO */
375void
376rxvt_Draw_Triangle(Display *Xdisplay, Window win, GC topShadow, GC botShadow, int x, int y, int w, int type)
377{
378 switch (type) {
379 case 'r': /* right triangle */
380 XDrawLine(Xdisplay, win, topShadow, x, y, x, y + w);
381 XDrawLine(Xdisplay, win, topShadow, x, y, x + w, y + w / 2);
382 XDrawLine(Xdisplay, win, botShadow, x, y + w, x + w, y + w / 2);
383 break;
384 394
385 case 'l': /* left triangle */
386 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y);
387 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x, y + w / 2);
388 XDrawLine(Xdisplay, win, topShadow, x, y + w / 2, x + w, y);
389 break;
390 395
391 case 'd': /* down triangle */
392 XDrawLine(Xdisplay, win, topShadow, x, y, x + w / 2, y + w);
393 XDrawLine(Xdisplay, win, topShadow, x, y, x + w, y);
394 XDrawLine(Xdisplay, win, botShadow, x + w, y, x + w / 2, y + w);
395 break;
396
397 case 'u': /* up triangle */
398 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w / 2, y);
399 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x, y + w);
400 XDrawLine(Xdisplay, win, topShadow, x, y + w, x + w / 2, y);
401 break;
402#if 0
403 case 's': /* square */
404 XDrawLine(Xdisplay, win, topShadow, x + w, y, x, y);
405 XDrawLine(Xdisplay, win, topShadow, x, y, x, y + w);
406 XDrawLine(Xdisplay, win, botShadow, x, y + w, x + w, y + w);
407 XDrawLine(Xdisplay, win, botShadow, x + w, y + w, x + w, y);
408 break;
409#endif
410 }
411}
412#endif
413/*----------------------- end-of-file (C source) -----------------------*/

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