[ViewVC] Diff of: cvs/rxvt-unicode/README.FAQ

Comparing rxvt-unicode/README.FAQ (file contents):
Revision 1.33 by root, Sat Jan 28 22:16:58 2006 UTC vs.
Revision 1.46 by root, Sat Feb 17 20:36:35 2007 UTC

1	FREQUENTLY ASKED QUESTIONS	1	RXVT-UNICODE/URXVT FREQUENTLY ASKED QUESTIONS
2	The new selection selects pieces that are too big, how can I select	2	Meta, Features & Commandline Issues
3	single words?	3	My question isn't answered here, can I ask a human?
4	Yes. For example, if you want to select alphanumeric words, you can	4	Before sending me mail, you could go to IRC: "irc.freenode.net", channel
5	use the following resource:	5	"#rxvt-unicode" has some rxvt-unicode enthusiasts that might be
		6	interested in learning about new and exciting problems (but not FAQs :).
6		7
7	URxvt.selection.pattern-0: ([[:word:]]+)
8
9	If you click more than twice, the selection will be extended more
10	and more.
11
12	To get a selection that is very similar to the old code, try this
13	pattern:
14
15	URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{\|})]+)
16
17	Please also note that the LeftClick Shift-LeftClik combination
18	also selects words like the old code.
19
20	I don't like the new selection/popups/hotkeys/perl, how do I
21	change/disable it?
22	You can disable the perl extension completely by setting the
23	perl-ext-common resource to the empty string, which also keeps
24	rxvt-unicode from initialising perl, saving memory.
25
26	If you only want to disable specific features, you first have to
27	identify which perl extension is responsible. For this, read the
28	section PREPACKAGED EXTENSIONS in the rxvtperl(3) manpage. For
29	example, to disable the selection-popup and option-popup, specify
30	this perl-ext-common resource:
31
32	URxvt.perl-ext-common: default,-selection-popup,-option-popup
33
34	This will keep the default extensions, but disable the two popup
35	extensions. Some extensions can also be configured, for example,
36	scrollback search mode is triggered by M-s. You can move it to any
37	other combination either by setting the searchable-scrollback
38	resource:
39
40	URxvt.searchable-scrollback: CM-s
41
42	Isn't rxvt supposed to be small? Don't all those features bloat?
43	I often get asked about this, and I think, no, they didn't cause
44	extra bloat. If you compare a minimal rxvt and a minimal urxvt, you
45	can see that the urxvt binary is larger (due to some encoding tables
46	always being compiled in), but it actually uses less memory (RSS)
47	after startup. Even with "--disable-everything", this comparison is
48	a bit unfair, as many features unique to urxvt (locale, encoding
49	conversion, iso14755 etc.) are already in use in this mode.
50
51	text data bss drs rss filename
52	98398 1664 24 15695 1824 rxvt --disable-everything
53	188985 9048 66616 18222 1788 urxvt --disable-everything
54
55	When you "--enable-everything" (which _is_ unfair, as this involves
56	xft and full locale/XIM support which are quite bloaty inside libX11
57	and my libc), the two diverge, but not unreasnobaly so.
58
59	text data bss drs rss filename
60	163431 2152 24 20123 2060 rxvt --enable-everything
61	1035683 49680 66648 29096 3680 urxvt --enable-everything
62
63	The very large size of the text section is explained by the
64	east-asian encoding tables, which, if unused, take up disk space but
65	nothing else and can be compiled out unless you rely on X11 core
66	fonts that use those encodings. The BSS size comes from the 64k
67	emergency buffer that my c++ compiler allocates (but of course
68	doesn't use unless you are out of memory). Also, using an xft font
69	instead of a core font immediately adds a few megabytes of RSS. Xft
70	indeed is responsible for a lot of RSS even when not used.
71
72	Of course, due to every character using two or four bytes instead of
73	one, a large scrollback buffer will ultimately make rxvt-unicode use
74	more memory.
75
76	Compared to e.g. Eterm (5112k), aterm (3132k) and xterm (4680k),
77	this still fares rather well. And compared to some monsters like
78	gnome-terminal (21152k + extra 4204k in separate processes) or
79	konsole (22200k + extra 43180k in daemons that stay around after
80	exit, plus half a minute of startup time, including the hundreds of
81	warnings it spits out), it fares extremely well g.
82
83	Why C++, isn't that unportable/bloated/uncool?
84	Is this a question? :) It comes up very often. The simple answer is:
85	I had to write it, and C++ allowed me to write and maintain it in a
86	fraction of the time and effort (which is a scarce resource for me).
87	Put even shorter: It simply wouldn't exist without C++.
88
89	My personal stance on this is that C++ is less portable than C, but
90	in the case of rxvt-unicode this hardly matters, as its portability
91	limits are defined by things like X11, pseudo terminals, locale
92	support and unix domain sockets, which are all less portable than
93	C++ itself.
94
95	Regarding the bloat, see the above question: It's easy to write
96	programs in C that use gobs of memory, an certainly possible to
97	write programs in C++ that don't. C++ also often comes with large
98	libraries, but this is not necessarily the case with GCC. Here is
99	what rxvt links against on my system with a minimal config:
100
101	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
102	libc.so.6 => /lib/libc.so.6 (0x00002aaaaadde000)
103	libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab01d000)
104	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
105
106	And here is rxvt-unicode:
107
108	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
109	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00002aaaaada2000)
110	libc.so.6 => /lib/libc.so.6 (0x00002aaaaaeb0000)
111	libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab0ee000)
112	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
113
114	No large bloated libraries (of course, none were linked in
115	statically), except maybe libX11 :)
116
117	Does it support tabs, can I have a tabbed rxvt-unicode?	8	Does it support tabs, can I have a tabbed rxvt-unicode?
118	Beginning with version 7.3, there is a perl extension that	9	Beginning with version 7.3, there is a perl extension that implements a
119	implements a simple tabbed terminal. It is installed by default, so	10	simple tabbed terminal. It is installed by default, so any of these
120	any of these should give you tabs:	11	should give you tabs:
121		12
122	rxvt -pe tabbed	13	urxvt -pe tabbed
123		14
124	URxvt.perl-ext-common: default,tabbed	15	URxvt.perl-ext-common: default,tabbed
125		16
126	It will also work fine with tabbing functionality of many window	17	It will also work fine with tabbing functionality of many window
127	managers or similar tabbing programs, and its embedding-features	18	managers or similar tabbing programs, and its embedding-features allow
128	allow it to be embedded into other programs, as witnessed by	19	it to be embedded into other programs, as witnessed by doc/rxvt-tabbed
129	doc/rxvt-tabbed or the upcoming "Gtk2::URxvt" perl module, which	20	or the upcoming "Gtk2::URxvt" perl module, which features a tabbed urxvt
130	features a tabbed urxvt (murxvt) terminal as an example embedding	21	(murxvt) terminal as an example embedding application.
131	application.
132		22
133	How do I know which rxvt-unicode version I'm using?	23	How do I know which rxvt-unicode version I'm using?
134	The version number is displayed with the usage (-h). Also the escape	24	The version number is displayed with the usage (-h). Also the escape
135	sequence "ESC [ 8 n" sets the window title to the version number.	25	sequence "ESC [ 8 n" sets the window title to the version number. When
136	When using the rxvtc client, the version displayed is that of the	26	using the urxvtc client, the version displayed is that of the daemon.
137	daemon.
138		27
139	I am using Debian GNU/Linux and have a problem...	28	Rxvt-unicode uses gobs of memory, how can I reduce that?
140	The Debian GNU/Linux package of rxvt-unicode in sarge contains large	29	Rxvt-unicode tries to obey the rule of not charging you for something
141	patches that considerably change the behaviour of rxvt-unicode (but	30	you don't use. One thing you should try is to configure out all settings
142	unfortunately this notice has been removed). Before reporting a bug	31	that you don't need, for example, Xft support is a resource hog by
143	to the original rxvt-unicode author please download and install the	32	design, when used. Compiling it out ensures that no Xft font will be
144	genuine version (<http://software.schmorp.de#rxvt-unicode>) and try	33	loaded accidentally when rxvt-unicode tries to find a font for your
145	to reproduce the problem. If you cannot, chances are that the	34	characters.
146	problems are specific to Debian GNU/Linux, in which case it should
147	be reported via the Debian Bug Tracking System (use "reportbug" to
148	report the bug).
149		35
150	For other problems that also affect the Debian package, you can and	36	Also, many people (me included) like large windows and even larger
151	probably should use the Debian BTS, too, because, after all, it's	37	scrollback buffers: Without "--enable-unicode3", rxvt-unicode will use 6
152	also a bug in the Debian version and it serves as a reminder for	38	bytes per screen cell. For a 160x?? window this amounts to almost a
153	other users that might encounter the same issue.	39	kilobyte per line. A scrollback buffer of 10000 lines will then (if
		40	full) use 10 Megabytes of memory. With "--enable-unicode3" it gets
		41	worse, as rxvt-unicode then uses 8 bytes per screen cell.
154		42
155	I am maintaining rxvt-unicode for distribution/OS XXX, any	43	How can I start urxvtd in a race-free way?
156	recommendation?	44	Try "urxvtd -f -o", which tells urxvtd to open the display, create the
157	You should build one binary with the default options. configure now	45	listening socket and then fork.
158	enables most useful options, and the trend goes to making them
159	runtime-switchable, too, so there is usually no drawback to enbaling
160	them, except higher disk and possibly memory usage. The perl
161	interpreter should be enabled, as important functionality (menus,
162	selection, likely more in the future) depends on it.
163		46
164	You should not overwrite the "perl-ext-common" snd "perl-ext"	47	How can I start urxvtd automatically when I run urxvtc?
165	resources system-wide (except maybe with "defaults"). This will	48	If you want to start urxvtd automatically whenever you run urxvtc and
166	result in useful behaviour. If your distribution aims at low memory,	49	the daemon isn't running yet, use this script:
167	add an empty "perl-ext-common" resource to the app-defaults file.	50
168	This will keep the perl interpreter disabled until the user enables	51	#!/bin/sh
		52	urxvtc "$@"
		53	if [ $? -eq 2 ]; then
		54	urxvtd -q -o -f
		55	urxvtc "$@"
169	it.	56	fi
170		57
171	If you can/want build more binaries, I recommend building a minimal	58	This tries to create a new terminal, and if fails with exit status 2,
172	one with "--disable-everything" (very useful) and a maximal one with	59	meaning it couldn't connect to the daemon, it will start the daemon and
173	"--enable-everything" (less useful, it will be very big due to a lot	60	re-run the command. Subsequent invocations of the script will re-use the
174	of encodings built-in that increase download times and are rarely	61	existing daemon.
175	used).
176		62
177	I need to make it setuid/setgid to support utmp/ptys on my OS, is this	63	How do I distinguish whether I'm running rxvt-unicode or a regular xterm? I need this to decide about setting colors etc.
178	safe?	64	The original rxvt and rxvt-unicode always export the variable
179	It should be, starting with release 7.1. You are encouraged to	65	"COLORTERM", so you can check and see if that is set. Note that several
180	properly install urxvt with privileges necessary for your OS now.	66	programs, JED, slrn, Midnight Commander automatically check this
		67	variable to decide whether or not to use color.
181		68
182	When rxvt-unicode detects that it runs setuid or setgid, it will	69	How do I set the correct, full IP address for the DISPLAY variable?
183	fork into a helper process for privileged operations (pty handling	70	If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled
184	on some systems, utmp/wtmp/lastlog handling on others) and drop	71	insecure mode then it is possible to use the following shell script
185	privileges immediately. This is much safer than most other terminals	72	snippets to correctly set the display. If your version of rxvt-unicode
186	that keep privileges while running (but is more relevant to urxvt,	73	wasn't also compiled with ESCZ_ANSWER (as assumed in these snippets)
187	as it contains things as perl interpreters, which might be "helpful"	74	then the COLORTERM variable can be used to distinguish rxvt-unicode from
188	to attackers).	75	a regular xterm.
189		76
190	This forking is done as the very first within main(), which is very	77	Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script
191	early and reduces possible bugs to initialisation code run before	78	snippets:
192	main(), or things like the dynamic loader of your system, which
193	should result in very little risk.
194		79
		80	# Bourne/Korn/POSIX family of shells:
		81	[ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
		82	if [ ${TERM:-foo} = xterm ]; then
		83	stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
		84	echo -n '^[Z'
		85	read term_id
		86	stty icanon echo
		87	if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
		88	echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
		89	read DISPLAY # set it in our local shell
		90	fi
		91	fi
		92
		93	How do I compile the manual pages on my own?
		94	You need to have a recent version of perl installed as /usr/bin/perl,
		95	one that comes with pod2man, pod2text and pod2html. Then go to the doc
		96	subdirectory and enter "make alldoc".
		97
		98	Isn't rxvt-unicode supposed to be small? Don't all those features bloat?
		99	I often get asked about this, and I think, no, they didn't cause extra
		100	bloat. If you compare a minimal rxvt and a minimal urxvt, you can see
		101	that the urxvt binary is larger (due to some encoding tables always
		102	being compiled in), but it actually uses less memory (RSS) after
		103	startup. Even with "--disable-everything", this comparison is a bit
		104	unfair, as many features unique to urxvt (locale, encoding conversion,
		105	iso14755 etc.) are already in use in this mode.
		106
		107	text data bss drs rss filename
		108	98398 1664 24 15695 1824 rxvt --disable-everything
		109	188985 9048 66616 18222 1788 urxvt --disable-everything
		110
		111	When you "--enable-everything" (which is unfair, as this involves xft
		112	and full locale/XIM support which are quite bloaty inside libX11 and my
		113	libc), the two diverge, but not unreasonably so.
		114
		115	text data bss drs rss filename
		116	163431 2152 24 20123 2060 rxvt --enable-everything
		117	1035683 49680 66648 29096 3680 urxvt --enable-everything
		118
		119	The very large size of the text section is explained by the east-asian
		120	encoding tables, which, if unused, take up disk space but nothing else
		121	and can be compiled out unless you rely on X11 core fonts that use those
		122	encodings. The BSS size comes from the 64k emergency buffer that my c++
		123	compiler allocates (but of course doesn't use unless you are out of
		124	memory). Also, using an xft font instead of a core font immediately adds
		125	a few megabytes of RSS. Xft indeed is responsible for a lot of RSS even
		126	when not used.
		127
		128	Of course, due to every character using two or four bytes instead of
		129	one, a large scrollback buffer will ultimately make rxvt-unicode use
		130	more memory.
		131
		132	Compared to e.g. Eterm (5112k), aterm (3132k) and xterm (4680k), this
		133	still fares rather well. And compared to some monsters like
		134	gnome-terminal (21152k + extra 4204k in separate processes) or konsole
		135	(22200k + extra 43180k in daemons that stay around after exit, plus half
		136	a minute of startup time, including the hundreds of warnings it spits
		137	out), it fares extremely well g.
		138
		139	Why C++, isn't that unportable/bloated/uncool?
		140	Is this a question? :) It comes up very often. The simple answer is: I
		141	had to write it, and C++ allowed me to write and maintain it in a
		142	fraction of the time and effort (which is a scarce resource for me). Put
		143	even shorter: It simply wouldn't exist without C++.
		144
		145	My personal stance on this is that C++ is less portable than C, but in
		146	the case of rxvt-unicode this hardly matters, as its portability limits
		147	are defined by things like X11, pseudo terminals, locale support and
		148	unix domain sockets, which are all less portable than C++ itself.
		149
		150	Regarding the bloat, see the above question: It's easy to write programs
		151	in C that use gobs of memory, an certainly possible to write programs in
		152	C++ that don't. C++ also often comes with large libraries, but this is
		153	not necessarily the case with GCC. Here is what rxvt links against on my
		154	system with a minimal config:
		155
		156	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
		157	libc.so.6 => /lib/libc.so.6 (0x00002aaaaadde000)
		158	libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab01d000)
		159	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
		160
		161	And here is rxvt-unicode:
		162
		163	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
		164	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00002aaaaada2000)
		165	libc.so.6 => /lib/libc.so.6 (0x00002aaaaaeb0000)
		166	libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab0ee000)
		167	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
		168
		169	No large bloated libraries (of course, none were linked in statically),
		170	except maybe libX11 :)
		171
		172	Rendering, Font & Look and Feel Issues
		173	I can't get transparency working, what am I doing wrong?
		174	First of all, transparency isn't officially supported in rxvt-unicode,
		175	so you are mostly on your own. Do not bug the author about it (but you
		176	may bug everybody else). Also, if you can't get it working consider it a
		177	rite of passage: ... and you failed.
		178
		179	Here are four ways to get transparency. Do read the manpage and option
		180	descriptions for the programs mentioned and rxvt-unicode. Really, do it!
		181
		182	1. Use inheritPixmap:
		183
		184	Esetroot wallpaper.jpg
		185	urxvt -ip -tint red -sh 40
		186
		187	That works. If you think it doesn't, you lack transparency and tinting
		188	support, or you are unable to read.
		189
		190	2. Use a simple pixmap and emulate pseudo-transparency. This enables you
		191	to use effects other than tinting and shading: Just shade/tint/whatever
		192	your picture with gimp or any other tool:
		193
		194	convert wallpaper.jpg -blur 20x20 -modulate 30 background.xpm
		195	urxvt -pixmap background.xpm -pe automove-background
		196
		197	That works. If you think it doesn't, you lack XPM and Perl support, or
		198	you are unable to read.
		199
		200	3. Use an ARGB visual:
		201
		202	urxvt -depth 32 -fg grey90 -bg rgba:0000/0000/4444/cccc
		203
		204	This requires XFT support, and the support of your X-server. If that
		205	doesn't work for you, blame Xorg and Keith Packard. ARGB visuals aren't
		206	there yet, no matter what they claim. Rxvt-Unicode contains the
		207	necessary bugfixes and workarounds for Xft and Xlib to make it work, but
		208	that doesn't mean that your WM has the required kludges in place.
		209
		210	4. Use xcompmgr and let it do the job:
		211
		212	xprop -frame -f _NET_WM_WINDOW_OPACITY 32c \
		213	-set _NET_WM_WINDOW_OPACITY 0xc0000000
		214
		215	Then click on a window you want to make transparent. Replace 0xc0000000
		216	by other values to change the degree of opacity. If it doesn't work and
		217	your server crashes, you got to keep the pieces.
		218
		219	Why does rxvt-unicode sometimes leave pixel droppings?
		220	Most fonts were not designed for terminal use, which means that
		221	character size varies a lot. A font that is otherwise fine for terminal
		222	use might contain some characters that are simply too wide. Rxvt-unicode
		223	will avoid these characters. For characters that are just "a bit" too
		224	wide a special "careful" rendering mode is used that redraws adjacent
		225	characters.
		226
		227	All of this requires that fonts do not lie about character sizes,
		228	however: Xft fonts often draw glyphs larger than their acclaimed
		229	bounding box, and rxvt-unicode has no way of detecting this (the correct
		230	way is to ask for the character bounding box, which unfortunately is
		231	wrong in these cases).
		232
		233	It's not clear (to me at least), whether this is a bug in Xft, freetype,
		234	or the respective font. If you encounter this problem you might try
		235	using the "-lsp" option to give the font more height. If that doesn't
		236	work, you might be forced to use a different font.
		237
		238	All of this is not a problem when using X11 core fonts, as their
		239	bounding box data is correct.
		240
		241	How can I keep rxvt-unicode from using reverse video so much?
		242	First of all, make sure you are running with the right terminal settings
		243	("TERM=rxvt-unicode"), which will get rid of most of these effects. Then
		244	make sure you have specified colours for italic and bold, as otherwise
		245	rxvt-unicode might use reverse video to simulate the effect:
		246
		247	URxvt.colorBD: white
		248	URxvt.colorIT: green
		249
		250	Some programs assume totally weird colours (red instead of blue), how can I fix that?
		251	For some unexplainable reason, some rare programs assume a very weird
		252	colour palette when confronted with a terminal with more than the
		253	standard 8 colours (rxvt-unicode supports 88). The right fix is, of
		254	course, to fix these programs not to assume non-ISO colours without very
		255	good reasons.
		256
		257	In the meantime, you can either edit your "rxvt-unicode" terminfo
		258	definition to only claim 8 colour support or use "TERM=rxvt", which will
		259	fix colours but keep you from using other rxvt-unicode features.
		260
		261	Can I switch the fonts at runtime?
		262	Yes, using an escape sequence. Try something like this, which has the
		263	same effect as using the "-fn" switch, and takes effect immediately:
		264
		265	printf '\33]50;%s\007' "9x15bold,xft:Kochi Gothic"
		266
		267	This is useful if you e.g. work primarily with japanese (and prefer a
		268	japanese font), but you have to switch to chinese temporarily, where
		269	japanese fonts would only be in your way.
		270
		271	You can think of this as a kind of manual ISO-2022 switching.
		272
		273	Why do italic characters look as if clipped?
		274	Many fonts have difficulties with italic characters and hinting. For
		275	example, the otherwise very nicely hinted font "xft:Bitstream Vera Sans
		276	Mono" completely fails in its italic face. A workaround might be to
		277	enable freetype autohinting, i.e. like this:
		278
		279	URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
		280	URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
		281
		282	Can I speed up Xft rendering somehow?
		283	Yes, the most obvious way to speed it up is to avoid Xft entirely, as it
		284	is simply slow. If you still want Xft fonts you might try to disable
		285	antialiasing (by appending ":antialias=false"), which saves lots of
		286	memory and also speeds up rendering considerably.
		287
		288	Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
		289	Rxvt-unicode will use whatever you specify as a font. If it needs to
		290	fall back to its default font search list it will prefer X11 core fonts,
		291	because they are small and fast, and then use Xft fonts. It has
		292	antialiasing disabled for most of them, because the author thinks they
		293	look best that way.
		294
		295	If you want antialiasing, you have to specify the fonts manually.
		296
		297	What's with this bold/blink stuff?
		298	If no bold colour is set via "colorBD:", bold will invert text using the
		299	standard foreground colour.
		300
		301	For the standard background colour, blinking will actually make the text
		302	blink when compiled with "--enable-blinking". with standard colours.
		303	Without "--enable-blinking", the blink attribute will be ignored.
		304
		305	On ANSI colours, bold/blink attributes are used to set high-intensity
		306	foreground/background colors.
		307
		308	color0-7 are the low-intensity colors.
		309
		310	color8-15 are the corresponding high-intensity colors.
		311
		312	I don't like the screen colors. How do I change them?
		313	You can change the screen colors at run-time using ~/.Xdefaults
		314	resources (or as long-options).
		315
		316	Here are values that are supposed to resemble a VGA screen, including
		317	the murky brown that passes for low-intensity yellow:
		318
		319	URxvt.color0: #000000
		320	URxvt.color1: #A80000
		321	URxvt.color2: #00A800
		322	URxvt.color3: #A8A800
		323	URxvt.color4: #0000A8
		324	URxvt.color5: #A800A8
		325	URxvt.color6: #00A8A8
		326	URxvt.color7: #A8A8A8
		327
		328	URxvt.color8: #000054
		329	URxvt.color9: #FF0054
		330	URxvt.color10: #00FF54
		331	URxvt.color11: #FFFF54
		332	URxvt.color12: #0000FF
		333	URxvt.color13: #FF00FF
		334	URxvt.color14: #00FFFF
		335	URxvt.color15: #FFFFFF
		336
		337	And here is a more complete set of non-standard colors.
		338
		339	URxvt.cursorColor: #dc74d1
		340	URxvt.pointerColor: #dc74d1
		341	URxvt.background: #0e0e0e
		342	URxvt.foreground: #4ad5e1
		343	URxvt.color0: #000000
		344	URxvt.color8: #8b8f93
		345	URxvt.color1: #dc74d1
		346	URxvt.color9: #dc74d1
		347	URxvt.color2: #0eb8c7
		348	URxvt.color10: #0eb8c7
		349	URxvt.color3: #dfe37e
		350	URxvt.color11: #dfe37e
		351	URxvt.color5: #9e88f0
		352	URxvt.color13: #9e88f0
		353	URxvt.color6: #73f7ff
		354	URxvt.color14: #73f7ff
		355	URxvt.color7: #e1dddd
		356	URxvt.color15: #e1dddd
		357
		358	They have been described (not by me) as "pretty girly".
		359
		360	Why do some characters look so much different than others?
		361	See next entry.
		362
		363	How does rxvt-unicode choose fonts?
		364	Most fonts do not contain the full range of Unicode, which is fine.
		365	Chances are that the font you (or the admin/package maintainer of your
		366	system/os) have specified does not cover all the characters you want to
		367	display.
		368
		369	rxvt-unicode makes a best-effort try at finding a replacement font.
		370	Often the result is fine, but sometimes the chosen font looks
		371	bad/ugly/wrong. Some fonts have totally strange characters that don't
		372	resemble the correct glyph at all, and rxvt-unicode lacks the artificial
		373	intelligence to detect that a specific glyph is wrong: it has to believe
		374	the font that the characters it claims to contain indeed look correct.
		375
		376	In that case, select a font of your taste and add it to the font list,
		377	e.g.:
		378
		379	urxvt -fn basefont,font2,font3...
		380
		381	When rxvt-unicode sees a character, it will first look at the base font.
		382	If the base font does not contain the character, it will go to the next
		383	font, and so on. Specifying your own fonts will also speed up this
		384	search and use less resources within rxvt-unicode and the X-server.
		385
		386	The only limitation is that none of the fonts may be larger than the
		387	base font, as the base font defines the terminal character cell size,
		388	which must be the same due to the way terminals work.
		389
		390	Why do some chinese characters look so different than others?
		391	This is because there is a difference between script and language --
		392	rxvt-unicode does not know which language the text that is output is, as
		393	it only knows the unicode character codes. If rxvt-unicode first sees a
		394	japanese/chinese character, it might choose a japanese font for display.
		395	Subsequent japanese characters will use that font. Now, many chinese
		396	characters aren't represented in japanese fonts, so when the first
		397	non-japanese character comes up, rxvt-unicode will look for a chinese
		398	font -- unfortunately at this point, it will still use the japanese font
		399	for chinese characters that are also in the japanese font.
		400
		401	The workaround is easy: just tag a chinese font at the end of your font
		402	list (see the previous question). The key is to view the font list as a
		403	preference list: If you expect more japanese, list a japanese font
		404	first. If you expect more chinese, put a chinese font first.
		405
		406	In the future it might be possible to switch language preferences at
		407	runtime (the internal data structure has no problem with using different
		408	fonts for the same character at the same time, but no interface for this
		409	has been designed yet).
		410
		411	Until then, you might get away with switching fonts at runtime (see "Can
		412	I switch the fonts at runtime?" later in this document).
		413
		414	Keyboard, Mouse & User Interaction
		415	The new selection selects pieces that are too big, how can I select single words?
		416	If you want to select e.g. alphanumeric words, you can use the following
		417	setting:
		418
		419	URxvt.selection.pattern-0: ([[:word:]]+)
		420
		421	If you click more than twice, the selection will be extended more and
		422	more.
		423
		424	To get a selection that is very similar to the old code, try this
		425	pattern:
		426
		427	URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{\|})]+)
		428
		429	Please also note that the LeftClick Shift-LeftClik combination also
		430	selects words like the old code.
		431
		432	I don't like the new selection/popups/hotkeys/perl, how do I change/disable it?
		433	You can disable the perl extension completely by setting the
		434	perl-ext-common resource to the empty string, which also keeps
		435	rxvt-unicode from initialising perl, saving memory.
		436
		437	If you only want to disable specific features, you first have to
		438	identify which perl extension is responsible. For this, read the section
		439	PREPACKAGED EXTENSIONS in the urxvtperl(3) manpage. For example, to
		440	disable the selection-popup and option-popup, specify this
		441	perl-ext-common resource:
		442
		443	URxvt.perl-ext-common: default,-selection-popup,-option-popup
		444
		445	This will keep the default extensions, but disable the two popup
		446	extensions. Some extensions can also be configured, for example,
		447	scrollback search mode is triggered by M-s. You can move it to any other
		448	combination either by setting the searchable-scrollback resource:
		449
		450	URxvt.searchable-scrollback: CM-s
		451
		452	The cursor moves when selecting text in the current input line, how do I switch this off?
		453	See next entry.
		454
		455	During rlogin/ssh/telnet/etc. sessions, clicking near the cursor outputs strange escape sequences, how do I fix this?
		456	These are caused by the "readline" perl extension. Under normal
		457	circumstances, it will move your cursor around when you click into the
		458	line that contains it. It tries hard not to do this at the wrong moment,
		459	but when running a program that doesn't parse cursor movements or in
		460	some cases during rlogin sessions, it fails to detect this properly.
		461
		462	You can permanently switch this feature off by disabling the "readline"
		463	extension:
		464
		465	URxvt.perl-ext-common: default,-readline
		466
		467	My numerical keypad acts weird and generates differing output?
		468	Some Debian GNUL/Linux users seem to have this problem, although no
		469	specific details were reported so far. It is possible that this is
		470	caused by the wrong "TERM" setting, although the details of whether and
		471	how this can happen are unknown, as "TERM=rxvt" should offer a
		472	compatible keymap. See the answer to the previous question, and please
		473	report if that helped.
		474
		475	My Compose (Multi_key) key is no longer working.
		476	The most common causes for this are that either your locale is not set
		477	correctly, or you specified a preeditStyle that is not supported by your
		478	input method. For example, if you specified OverTheSpot and your input
		479	method (e.g. the default input method handling Compose keys) does not
		480	support this (for instance because it is not visual), then rxvt-unicode
		481	will continue without an input method.
		482
		483	In this case either do not specify a preeditStyle or specify more than
		484	one pre-edit style, such as OverTheSpot,Root,None.
		485
		486	I cannot type "Ctrl-Shift-2" to get an ASCII NUL character due to ISO 14755
		487	Either try "Ctrl-2" alone (it often is mapped to ASCII NUL even on
		488	international keyboards) or simply use ISO 14755 support to your
		489	advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for
		490	other codes, too, such as "Ctrl-Shift-1-d" to type the default telnet
		491	escape character and so on.
		492
		493	Mouse cut/paste suddenly no longer works.
		494	Make sure that mouse reporting is actually turned off since killing some
		495	editors prematurely may leave the mouse in mouse report mode. I've heard
		496	that tcsh may use mouse reporting unless it otherwise specified. A quick
		497	check is to see if cut/paste works when the Alt or Shift keys are
		498	depressed.
		499
		500	What's with the strange Backspace/Delete key behaviour?
		501	Assuming that the physical Backspace key corresponds to the Backspace
		502	keysym (not likely for Linux ... see the following question) there are
		503	two standard values that can be used for Backspace: "^H" and "^?".
		504
		505	Historically, either value is correct, but rxvt-unicode adopts the
		506	debian policy of using "^?" when unsure, because it's the one only only
		507	correct choice :).
		508
		509	Rxvt-unicode tries to inherit the current stty settings and uses the
		510	value of `erase' to guess the value for backspace. If rxvt-unicode
		511	wasn't started from a terminal (say, from a menu or by remote shell),
		512	then the system value of `erase', which corresponds to CERASE in
		513	<termios.h>, will be used (which may not be the same as your stty
		514	setting).
		515
		516	For starting a new rxvt-unicode:
		517
		518	# use Backspace = ^H
		519	$ stty erase ^H
		520	$ urxvt
		521
		522	# use Backspace = ^?
		523	$ stty erase ^?
		524	$ urxvt
		525
		526	Toggle with "ESC [ 36 h" / "ESC [ 36 l".
		527
		528	For an existing rxvt-unicode:
		529
		530	# use Backspace = ^H
		531	$ stty erase ^H
		532	$ echo -n "^[[36h"
		533
		534	# use Backspace = ^?
		535	$ stty erase ^?
		536	$ echo -n "^[[36l"
		537
		538	This helps satisfy some of the Backspace discrepancies that occur, but
		539	if you use Backspace = "^H", make sure that the termcap/terminfo value
		540	properly reflects that.
		541
		542	The Delete key is a another casualty of the ill-defined Backspace
		543	problem. To avoid confusion between the Backspace and Delete keys, the
		544	Delete key has been assigned an escape sequence to match the vt100 for
		545	Execute ("ESC [ 3 ~") and is in the supplied termcap/terminfo.
		546
		547	Some other Backspace problems:
		548
		549	some editors use termcap/terminfo, some editors (vim I'm told) expect
		550	Backspace = ^H, GNU Emacs (and Emacs-like editors) use ^H for help.
		551
		552	Perhaps someday this will all be resolved in a consistent manner.
		553
		554	I don't like the key-bindings. How do I change them?
		555	There are some compile-time selections available via configure. Unless
		556	you have run "configure" with the "--disable-resources" option you can
		557	use the `keysym' resource to alter the keystrings associated with
		558	keysyms.
		559
		560	Here's an example for a URxvt session started using "urxvt -name URxvt"
		561
		562	URxvt.keysym.Home: \033[1~
		563	URxvt.keysym.End: \033[4~
		564	URxvt.keysym.C-apostrophe: \033<C-'>
		565	URxvt.keysym.C-slash: \033<C-/>
		566	URxvt.keysym.C-semicolon: \033<C-;>
		567	URxvt.keysym.C-grave: \033<C-`>
		568	URxvt.keysym.C-comma: \033<C-,>
		569	URxvt.keysym.C-period: \033<C-.>
		570	URxvt.keysym.C-0x60: \033<C-`>
		571	URxvt.keysym.C-Tab: \033<C-Tab>
		572	URxvt.keysym.C-Return: \033<C-Return>
		573	URxvt.keysym.S-Return: \033<S-Return>
		574	URxvt.keysym.S-space: \033<S-Space>
		575	URxvt.keysym.M-Up: \033<M-Up>
		576	URxvt.keysym.M-Down: \033<M-Down>
		577	URxvt.keysym.M-Left: \033<M-Left>
		578	URxvt.keysym.M-Right: \033<M-Right>
		579	URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
		580	URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
		581	URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
		582
		583	See some more examples in the documentation for the keysym resource.
		584
		585	I'm using keyboard model XXX that has extra Prior/Next/Insert keys. How do I make use of them? For example, the Sun Keyboard type 4 has the following map
		586	KP_Insert == Insert
		587	F22 == Print
		588	F27 == Home
		589	F29 == Prior
		590	F33 == End
		591	F35 == Next
		592
		593	Rather than have rxvt-unicode try to accommodate all the various
		594	possible keyboard mappings, it is better to use `xmodmap' to remap the
		595	keys as required for your particular machine.
		596
		597	Terminal Configuration
		598	Can I see a typical configuration?
		599	The default configuration tries to be xterm-like, which I don't like
		600	that much, but it's least surprise to regular users.
		601
		602	As a rxvt or rxvt-unicode user, you are practically supposed to invest
		603	time into customising your terminal. To get you started, here is the
		604	author's .Xdefaults entries, with comments on what they do. It's
		605	certainly not typical, but what's typical...
		606
		607	URxvt.cutchars: "()*,<>[]{}\|'
		608	URxvt.print-pipe: cat >/tmp/xxx
		609
		610	These are just for testing stuff.
		611
		612	URxvt.imLocale: ja_JP.UTF-8
		613	URxvt.preeditType: OnTheSpot,None
		614
		615	This tells rxvt-unicode to use a special locale when communicating with
		616	the X Input Method, and also tells it to only use the OnTheSpot pre-edit
		617	type, which requires the "xim-onthespot" perl extension but rewards me
		618	with correct-looking fonts.
		619
		620	URxvt.perl-lib: /root/lib/urxvt
		621	URxvt.perl-ext-common: default,selection-autotransform,selection-pastebin,xim-onthespot,remote-clipboard
		622	URxvt.selection.pattern-0: ( at .*? line \\d+)
		623	URxvt.selection.pattern-1: ^(/[^:]+):\
		624	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		625	URxvt.selection-autotransform.1: s/^ at (.*?) line (\\d+)$/:e \\Q$1\\E\\x0d:$2\\x0d/
		626
		627	This is my perl configuration. The first two set the perl library
		628	directory and also tells urxvt to use a large number of extensions. I
		629	develop for myself mostly, so I actually use most of the extensions I
		630	write.
		631
		632	The selection stuff mainly makes the selection perl-error-message aware
		633	and tells it to convert perl error messages into vi-commands to load the
		634	relevant file and go tot he error line number.
		635
		636	URxvt.scrollstyle: plain
		637	URxvt.secondaryScroll: true
		638
		639	As the documentation says: plain is the preferred scrollbar for the
		640	author. The "secondaryScroll" configures urxvt to scroll in full-screen
		641	apps, like screen, so lines scrolled out of screen end up in urxvt's
		642	scrollback buffer.
		643
		644	URxvt.background: #000000
		645	URxvt.foreground: gray90
		646	URxvt.color7: gray90
		647	URxvt.colorBD: #ffffff
		648	URxvt.cursorColor: #e0e080
		649	URxvt.throughColor: #8080f0
		650	URxvt.highlightColor: #f0f0f0
		651
		652	Some colours. Not sure which ones are being used or even non-defaults,
		653	but these are in my .Xdefaults. Most notably, they set
		654	foreground/background to light gray/black, and also make sure that the
		655	colour 7 matches the default foreground colour.
		656
		657	URxvt.underlineColor: yellow
		658
		659	Another colour, makes underline lines look different. Sometimes hurts,
		660	but is mostly a nice effect.
		661
		662	URxvt.geometry: 154x36
		663	URxvt.loginShell: false
		664	URxvt.meta: ignore
		665	URxvt.utmpInhibit: true
		666
		667	Uh, well, should be mostly self-explanatory. By specifying some defaults
		668	manually, I can quickly switch them for testing.
		669
		670	URxvt.saveLines: 8192
		671
		672	A large scrollback buffer is essential. Really.
		673
		674	URxvt.mapAlert: true
		675
		676	The only case I use it is for my IRC window, which I like to keep
		677	iconified till people msg me (which beeps).
		678
		679	URxvt.visualBell: true
		680
		681	The audible bell is often annoying, especially when in a crowd.
		682
		683	URxvt.insecure: true
		684
		685	Please don't hack my mutt! Ooops...
		686
		687	URxvt.pastableTabs: false
		688
		689	I once thought this is a great idea.
		690
		691	urxvt.font: 9x15bold,\
		692	-misc-fixed-bold-r-normal--15-140-75-75-c-90-iso10646-1,\
		693	-misc-fixed-medium-r-normal--15-140-75-75-c-90-iso10646-1, \
		694	[codeset=JISX0208]xft:Kochi Gothic, \
		695	xft:Bitstream Vera Sans Mono:autohint=true, \
		696	xft:Code2000:antialias=false
		697	urxvt.boldFont: -xos4-terminus-bold-r-normal--14-140-72-72-c-80-iso8859-15
		698	urxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
		699	urxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
		700
		701	I wrote rxvt-unicode to be able to specify fonts exactly. So don't be
		702	overwhelmed. A special note: the "9x15bold" mentioned above is actually
		703	the version from XFree-3.3, as XFree-4 replaced it by a totally
		704	different font (different glyphs for ";" and many other harmless
		705	characters), while the second font is actually the "9x15bold" from
		706	XFree4/XOrg. The bold version has less chars than the medium version, so
		707	I use it for rare characters, too. When editing sources with vim, I use
		708	italic for comments and other stuff, which looks quite good with
		709	Bitstream Vera anti-aliased.
		710
		711	Terminus is a quite bad font (many very wrong glyphs), but for most of
		712	my purposes, it works, and gives a different look, as my normal
		713	(Non-bold) font is already bold, and I want to see a difference between
		714	bold and normal fonts.
		715
		716	Please note that I used the "urxvt" instance name and not the "URxvt"
		717	class name. Thats because I use different configs for different
		718	purposes, for example, my IRC window is started with "-name IRC", and
		719	uses these defaults:
		720
		721	IRC*title: IRC
		722	IRC*geometry: 87x12+535+542
		723	IRC*saveLines: 0
		724	IRC*mapAlert: true
		725	IRC*font: suxuseuro
		726	IRC*boldFont: suxuseuro
		727	IRC*colorBD: white
		728	IRC*keysym.M-C-1: command:\033]710;suxuseuro\007\033]711;suxuseuro\007
		729	IRC*keysym.M-C-2: command:\033]710;9x15bold\007\033]711;9x15bold\007
		730
		731	"Alt-Shift-1" and "Alt-Shift-2" switch between two different font sizes.
		732	"suxuseuro" allows me to keep an eye (and actually read) stuff while
		733	keeping a very small window. If somebody pastes something complicated
		734	(e.g. japanese), I temporarily switch to a larger font.
		735
		736	The above is all in my ".Xdefaults" (I don't use ".Xresources" nor
		737	"xrdb"). I also have some resources in a separate ".Xdefaults-hostname"
		738	file for different hosts, for example, on ym main desktop, I use:
		739
		740	URxvt.keysym.C-M-q: command:\033[3;5;5t
		741	URxvt.keysym.C-M-y: command:\033[3;5;606t
		742	URxvt.keysym.C-M-e: command:\033[3;1605;5t
		743	URxvt.keysym.C-M-c: command:\033[3;1605;606t
		744	URxvt.keysym.C-M-p: perl:test
		745
		746	The first for keysym definitions allow me to quickly bring some windows
		747	in the layout I like most. Ion users might start laughing but will stop
		748	immediately when I tell them that I use my own Fvwm2 module for much the
		749	same effect as Ion provides, and I only very rarely use the above key
		750	combinations :->
		751
		752	Why doesn't rxvt-unicode read my resources?
		753	Well, why, indeed? It does, in a way very similar to other X
		754	applications. Most importantly, this means that if you or your OS loads
		755	resources into the X display (the right way to do it), rxvt-unicode will
		756	ignore any resource files in your home directory. It will only read
		757	$HOME/.Xdefaults when no resources are attached to the display.
		758
		759	If you have or use an $HOME/.Xresources file, chances are that resources
		760	are loaded into your X-server. In this case, you have to re-login after
		761	every change (or run xrdb -merge $HOME/.Xresources).
		762
		763	Also consider the form resources have to use:
		764
		765	URxvt.resource: value
		766
		767	If you want to use another form (there are lots of different ways of
		768	specifying resources), make sure you understand whether and why it
		769	works. If unsure, use the form above.
		770
195	When I log-in to another system it tells me about missing terminfo data?	771	When I log-in to another system it tells me about missing terminfo data?
196	The terminal description used by rxvt-unicode is not as widely	772	The terminal description used by rxvt-unicode is not as widely available
197	available as that for xterm, or even rxvt (for which the same	773	as that for xterm, or even rxvt (for which the same problem often
198	problem often arises).	774	arises).
199		775
200	The correct solution for this problem is to install the terminfo,	776	The correct solution for this problem is to install the terminfo, this
201	this can be done like this (with ncurses' infocmp):	777	can be done like this (with ncurses' infocmp and works as user and
		778	admin):
202		779
203	REMOTE=remotesystem.domain	780	REMOTE=remotesystem.domain
204	infocmp rxvt-unicode \| ssh $REMOTE "cat >/tmp/ti && tic /tmp/ti"	781	infocmp rxvt-unicode \| ssh $REMOTE "mkdir -p .terminfo && cat >/tmp/ti && tic /tmp/ti"
205		782
206	... or by installing rxvt-unicode normally on the remote system,	783	... or by installing rxvt-unicode normally on the remote system,
207		784
		785	One some systems you might need to set $TERMINFO to the full path of
		786	$HOME/.terminfo for this to work.
		787
208	If you cannot or do not want to do this, then you can simply set	788	If you cannot or do not want to do this, then you can simply set
209	"TERM=rxvt" or even "TERM=xterm", and live with the small number of	789	"TERM=rxvt" or even "TERM=xterm", and live with the small number of
210	problems arising, which includes wrong keymapping, less and	790	problems arising, which includes wrong keymapping, less and different
211	different colours and some refresh errors in fullscreen	791	colours and some refresh errors in fullscreen applications. It's a nice
212	applications. It's a nice quick-and-dirty workaround for rare cases,	792	quick-and-dirty workaround for rare cases, though.
213	though.
214		793
215	If you always want to do this (and are fine with the consequences)	794	If you always want to do this (and are fine with the consequences) you
216	you can either recompile rxvt-unicode with the desired TERM value or	795	can either recompile rxvt-unicode with the desired TERM value or use a
217	use a resource to set it:	796	resource to set it:
218		797
219	URxvt.termName: rxvt	798	URxvt.termName: rxvt
220		799
221	If you don't plan to use rxvt (quite common...) you could also	800	If you don't plan to use rxvt (quite common...) you could also replace
222	replace the rxvt terminfo file with the rxvt-unicode one.	801	the rxvt terminfo file with the rxvt-unicode one and use "TERM=rxvt".
223		802
224	"tic" outputs some error when compiling the terminfo entry.	803	"tic" outputs some error when compiling the terminfo entry.
225	Most likely it's the empty definition for "enacs=". Just replace it	804	Most likely it's the empty definition for "enacs=". Just replace it by
226	by "enacs=\E[0@" and try again.	805	"enacs=\E[0@" and try again.
227		806
228	"bash"'s readline does not work correctly under rxvt.	807	"bash"'s readline does not work correctly under urxvt.
		808	See next entry.
		809
229	I need a termcap file entry.	810	I need a termcap file entry.
230	One reason you might want this is that some distributions or	811	One reason you might want this is that some distributions or operating
231	operating systems still compile some programs using the	812	systems still compile some programs using the long-obsoleted termcap
232	long-obsoleted termcap library (Fedora Core's bash is one example)	813	library (Fedora Core's bash is one example) and rely on a termcap entry
233	and rely on a termcap entry for "rxvt-unicode".	814	for "rxvt-unicode".
234		815
235	You could use rxvt's termcap entry with resonable results in many	816	You could use rxvt's termcap entry with reasonable results in many
236	cases. You can also create a termcap entry by using terminfo's	817	cases. You can also create a termcap entry by using terminfo's infocmp
237	infocmp program like this:	818	program like this:
238		819
239	infocmp -C rxvt-unicode	820	infocmp -C rxvt-unicode
240		821
241	Or you could use this termcap entry, generated by the command above:	822	Or you could use this termcap entry, generated by the command above:
242		823
243	rxvt-unicode\|rxvt-unicode terminal (X Window System):\	824	rxvt-unicode\|rxvt-unicode terminal (X Window System):\
244	:am:bw:eo:km:mi:ms:xn:xo:\	825	:am:bw:eo:km:mi:ms:xn:xo:\
245	:co#80:it#8:li#24:lm#0:\	826	:co#80:it#8:li#24:lm#0:\
246	:AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\	827	:AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\
247	:K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\	828	:K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\
248	:RI=\E[%dC:SF=\E[%dS:SR=\E[%dT:UP=\E[%dA:ae=\E(B:al=\E[L:\	829	:RI=\E[%dC:SF=\E[%dS:SR=\E[%dT:UP=\E[%dA:ae=\E(B:al=\E[L:\
249	:as=\E(0:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:\	830	:as=\E(0:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:\
250	:cm=\E[%i%d;%dH:cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:\	831	:cm=\E[%i%d;%dH:cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:\
251	:dl=\E[M:do=^J:ec=\E[%dX:ei=\E[4l:ho=\E[H:\	832	:dl=\E[M:do=^J:ec=\E[%dX:ei=\E[4l:ho=\E[H:\
252	:i1=\E[?47l\E=\E[?1l:ic=\E[@:im=\E[4h:\	833	:i1=\E[?47l\E=\E[?1l:ic=\E[@:im=\E[4h:\
253	:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\	834	:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\
254	:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:k5=\E[15~:\	835	:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:k5=\E[15~:\
255	:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:kD=\E[3~:\	836	:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:kD=\E[3~:\
256	:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:kd=\EOB:ke=\E[?1l\E>:\	837	:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:kd=\EOB:ke=\E[?1l\E>:\
257	:kh=\E[7~:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:ku=\EOA:le=^H:\	838	:kh=\E[7~:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:ku=\EOA:le=^H:\
258	:mb=\E[5m:md=\E[1m:me=\E[m\017:mr=\E[7m:nd=\E[C:rc=\E8:\	839	:mb=\E[5m:md=\E[1m:me=\E[m\017:mr=\E[7m:nd=\E[C:rc=\E8:\
259	:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\	840	:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
260	:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\	841	:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\
261	:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\	842	:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\
262	:vs=\E[?25h:	843	:vs=\E[?25h:
263		844
264	Why does "ls" no longer have coloured output?	845	Why does "ls" no longer have coloured output?
265	The "ls" in the GNU coreutils unfortunately doesn't use terminfo to	846	The "ls" in the GNU coreutils unfortunately doesn't use terminfo to
266	decide wether a terminal has colour, but uses it's own configuration	847	decide whether a terminal has colour, but uses its own configuration
267	file. Needless to say, "rxvt-unicode" is not in it's default file	848	file. Needless to say, "rxvt-unicode" is not in its default file (among
268	(among with most other terminals supporting colour). Either add:	849	with most other terminals supporting colour). Either add:
269		850
270	TERM rxvt-unicode	851	TERM rxvt-unicode
271		852
272	to "/etc/DIR_COLORS" or simply add:	853	to "/etc/DIR_COLORS" or simply add:
273		854
274	alias ls='ls --color=auto'	855	alias ls='ls --color=auto'
275		856
276	to your ".profile" or ".bashrc".	857	to your ".profile" or ".bashrc".
277		858
278	Why doesn't vim/emacs etc. use the 88 colour mode?	859	Why doesn't vim/emacs etc. use the 88 colour mode?
		860	See next entry.
		861
279	Why doesn't vim/emacs etc. make use of italic?	862	Why doesn't vim/emacs etc. make use of italic?
		863	See next entry.
		864
280	Why are the secondary screen-related options not working properly?	865	Why are the secondary screen-related options not working properly?
281	Make sure you are using "TERM=rxvt-unicode". Some pre-packaged	866	Make sure you are using "TERM=rxvt-unicode". Some pre-packaged
282	distributions (most notably Debian GNU/Linux) break rxvt-unicode by	867	distributions (most notably Debian GNU/Linux) break rxvt-unicode by
283	setting "TERM" to "rxvt", which doesn't have these extra features.	868	setting "TERM" to "rxvt", which doesn't have these extra features.
284	Unfortunately, some of these (most notably, again, Debian GNU/Linux)	869	Unfortunately, some of these (most notably, again, Debian GNU/Linux)
285	furthermore fail to even install the "rxvt-unicode" terminfo file,	870	furthermore fail to even install the "rxvt-unicode" terminfo file, so
286	so you will need to install it on your own (See the question When I	871	you will need to install it on your own (See the question When I log-in
287	log-in to another system it tells me about missing terminfo data? on	872	to another system it tells me about missing terminfo data? on how to do
288	how to do this).	873	this).
289		874
290	My numerical keypad acts weird and generates differing output?	875	Encoding / Locale / Input Method Issues
291	Some Debian GNUL/Linux users seem to have this problem, although no
292	specific details were reported so far. It is possible that this is
293	caused by the wrong "TERM" setting, although the details of wether
294	and how this can happen are unknown, as "TERM=rxvt" should offer a
295	compatible keymap. See the answer to the previous question, and
296	please report if that helped.
297
298	Rxvt-unicode does not seem to understand the selected encoding?	876	Rxvt-unicode does not seem to understand the selected encoding?
		877	See next entry.
		878
299	Unicode does not seem to work?	879	Unicode does not seem to work?
300	If you encounter strange problems like typing an accented character	880	If you encounter strange problems like typing an accented character but
301	but getting two unrelated other characters or similar, or if program	881	getting two unrelated other characters or similar, or if program output
302	output is subtly garbled, then you should check your locale	882	is subtly garbled, then you should check your locale settings.
303	settings.
304		883
305	Rxvt-unicode must be started with the same "LC_CTYPE" setting as the	884	Rxvt-unicode must be started with the same "LC_CTYPE" setting as the
306	programs. Often rxvt-unicode is started in the "C" locale, while the	885	programs running in it. Often rxvt-unicode is started in the "C" locale,
307	login script running within the rxvt-unicode window changes the	886	while the login script running within the rxvt-unicode window changes
308	locale to something else, e.g. "en_GB.UTF-8". Needless to say, this	887	the locale to something else, e.g. "en_GB.UTF-8". Needless to say, this
309	is not going to work.	888	is not going to work, and is the most common cause for problems.
310		889
311	The best thing is to fix your startup environment, as you will	890	The best thing is to fix your startup environment, as you will likely
312	likely run into other problems. If nothing works you can try this in	891	run into other problems. If nothing works you can try this in your
313	your .profile.	892	.profile.
314		893
315	printf '\e]701;%s\007' "$LC_CTYPE"	894	printf '\33]701;%s\007' "$LC_CTYPE" # $LANG or $LC_ALL are worth a try, too
316		895
317	If this doesn't work, then maybe you use a "LC_CTYPE" specification	896	If this doesn't work, then maybe you use a "LC_CTYPE" specification not
318	not supported on your systems. Some systems have a "locale" command	897	supported on your systems. Some systems have a "locale" command which
319	which displays this (also, "perl -e0" can be used to check locale	898	displays this (also, "perl -e0" can be used to check locale settings, as
320	settings, as it will complain loudly if it cannot set the locale).	899	it will complain loudly if it cannot set the locale). If it displays
321	If it displays something like:	900	something like:
322		901
323	locale: Cannot set LC_CTYPE to default locale: ...	902	locale: Cannot set LC_CTYPE to default locale: ...
324		903
325	Then the locale you specified is not supported on your system.	904	Then the locale you specified is not supported on your system.
326		905
327	If nothing works and you are sure that everything is set correctly	906	If nothing works and you are sure that everything is set correctly then
328	then you will need to remember a little known fact: Some programs	907	you will need to remember a little known fact: Some programs just don't
329	just don't support locales :(	908	support locales :(
330		909
331	Why do some characters look so much different than others?
332	How does rxvt-unicode choose fonts?
333	Most fonts do not contain the full range of Unicode, which is fine.
334	Chances are that the font you (or the admin/package maintainer of
335	your system/os) have specified does not cover all the characters you
336	want to display.
337
338	rxvt-unicode makes a best-effort try at finding a replacement font.
339	Often the result is fine, but sometimes the chosen font looks
340	bad/ugly/wrong. Some fonts have totally strange characters that
341	don't resemble the correct glyph at all, and rxvt-unicode lacks the
342	artificial intelligence to detect that a specific glyph is wrong: it
343	has to believe the font that the characters it claims to contain
344	indeed look correct.
345
346	In that case, select a font of your taste and add it to the font
347	list, e.g.:
348
349	rxvt -fn basefont,font2,font3...
350
351	When rxvt-unicode sees a character, it will first look at the base
352	font. If the base font does not contain the character, it will go to
353	the next font, and so on. Specifying your own fonts will also speed
354	up this search and use less resources within rxvt-unicode and the
355	X-server.
356
357	The only limitation is that none of the fonts may be larger than the
358	base font, as the base font defines the terminal character cell
359	size, which must be the same due to the way terminals work.
360
361	Why do some chinese characters look so different than others?
362	This is because there is a difference between script and language --
363	rxvt-unicode does not know which language the text that is output
364	is, as it only knows the unicode character codes. If rxvt-unicode
365	first sees a japanese/chinese character, it might choose a japanese
366	font for display. Subsequent japanese characters will use that font.
367	Now, many chinese characters aren't represented in japanese fonts,
368	so when the first non-japanese character comes up, rxvt-unicode will
369	look for a chinese font -- unfortunately at this point, it will
370	still use the japanese font for chinese characters that are also in
371	the japanese font.
372
373	The workaround is easy: just tag a chinese font at the end of your
374	font list (see the previous question). The key is to view the font
375	list as a preference list: If you expect more japanese, list a
376	japanese font first. If you expect more chinese, put a chinese font
377	first.
378
379	In the future it might be possible to switch language preferences at
380	runtime (the internal data structure has no problem with using
381	different fonts for the same character at the same time, but no
382	interface for this has been designed yet).
383
384	Until then, you might get away with switching fonts at runtime (see
385	"Can I switch the fonts at runtime?" later in this document).
386
387	Why does rxvt-unicode sometimes leave pixel droppings?
388	Most fonts were not designed for terminal use, which means that
389	character size varies a lot. A font that is otherwise fine for
390	terminal use might contain some characters that are simply too wide.
391	Rxvt-unicode will avoid these characters. For characters that are
392	just "a bit" too wide a special "careful" rendering mode is used
393	that redraws adjacent characters.
394
395	All of this requires that fonts do not lie about character sizes,
396	however: Xft fonts often draw glyphs larger than their acclaimed
397	bounding box, and rxvt-unicode has no way of detecting this (the
398	correct way is to ask for the character bounding box, which
399	unfortunately is wrong in these cases).
400
401	It's not clear (to me at least), wether this is a bug in Xft,
402	freetype, or the respective font. If you encounter this problem you
403	might try using the "-lsp" option to give the font more height. If
404	that doesn't work, you might be forced to use a different font.
405
406	All of this is not a problem when using X11 core fonts, as their
407	bounding box data is correct.
408
409	On Solaris 9, many line-drawing characters are too wide.
410	Seems to be a known bug, read
411	<http://nixdoc.net/files/forum/about34198.html>. Some people use the
412	following ugly workaround to get non-double-wide-characters working:
413
414	#define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)
415
416	My Compose (Multi_key) key is no longer working.
417	The most common causes for this are that either your locale is not
418	set correctly, or you specified a preeditStyle that is not supported
419	by your input method. For example, if you specified OverTheSpot and
420	your input method (e.g. the default input method handling Compose
421	keys) does not support this (for instance because it is not visual),
422	then rxvt-unicode will continue without an input method.
423
424	In this case either do not specify a preeditStyle or specify more
425	than one pre-edit style, such as OverTheSpot,Root,None.
426
427	I cannot type "Ctrl-Shift-2" to get an ASCII NUL character due to ISO
428	14755
429	Either try "Ctrl-2" alone (it often is mapped to ASCII NUL even on
430	international keyboards) or simply use ISO 14755 support to your
431	advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for
432	other codes, too, such as "Ctrl-Shift-1-d" to type the default
433	telnet escape character and so on.
434
435	How can I keep rxvt-unicode from using reverse video so much?
436	First of all, make sure you are running with the right terminal
437	settings ("TERM=rxvt-unicode"), which will get rid of most of these
438	effects. Then make sure you have specified colours for italic and
439	bold, as otherwise rxvt-unicode might use reverse video to simulate
440	the effect:
441
442	URxvt.colorBD: white
443	URxvt.colorIT: green
444
445	Some programs assume totally weird colours (red instead of blue), how
446	can I fix that?
447	For some unexplainable reason, some rare programs assume a very
448	weird colour palette when confronted with a terminal with more than
449	the standard 8 colours (rxvt-unicode supports 88). The right fix is,
450	of course, to fix these programs not to assume non-ISO colours
451	without very good reasons.
452
453	In the meantime, you can either edit your "rxvt-unicode" terminfo
454	definition to only claim 8 colour support or use "TERM=rxvt", which
455	will fix colours but keep you from using other rxvt-unicode
456	features.
457
458	I am on FreeBSD and rxvt-unicode does not seem to work at all.
459	Rxvt-unicode requires the symbol "__STDC_ISO_10646__" to be defined
460	in your compile environment, or an implementation that implements
461	it, wether it defines the symbol or not. "__STDC_ISO_10646__"
462	requires that wchar_t is represented as unicode.
463
464	As you might have guessed, FreeBSD does neither define this symobl
465	nor does it support it. Instead, it uses it's own internal
466	representation of wchar_t. This is, of course, completely fine with
467	respect to standards.
468
469	However, that means rxvt-unicode only works in "POSIX", "ISO-8859-1"
470	and "UTF-8" locales under FreeBSD (which all use Unicode as wchar_t.
471
472	"__STDC_ISO_10646__" is the only sane way to support multi-language
473	apps in an OS, as using a locale-dependent (and non-standardized)
474	representation of wchar_t makes it impossible to convert between
475	wchar_t (as used by X11 and your applications) and any other
476	encoding without implementing OS-specific-wrappers for each and
477	every locale. There simply are no APIs to convert wchar_t into
478	anything except the current locale encoding.
479
480	Some applications (such as the formidable mlterm) work around this
481	by carrying their own replacement functions for character set
482	handling with them, and either implementing OS-dependent hacks or
483	doing multiple conversions (which is slow and unreliable in case the
484	OS implements encodings slightly different than the terminal
485	emulator).
486
487	The rxvt-unicode author insists that the right way to fix this is in
488	the system libraries once and for all, instead of forcing every app
489	to carry complete replacements for them :)
490
491	I use Solaris 9 and it doesn't compile/work/etc.
492	Try the diff in doc/solaris9.patch as a base. It fixes the worst
493	problems with "wcwidth" and a compile problem.
494
495	How can I use rxvt-unicode under cygwin?
496	rxvt-unicode should compile and run out of the box on cygwin, using
497	the X11 libraries that come with cygwin. libW11 emulation is no
498	longer supported (and makes no sense, either, as it only supported a
499	single font). I recommend starting the X-server in "-multiwindow" or
500	"-rootless" mode instead, which will result in similar look&feel as
501	the old libW11 emulation.
502
503	At the time of this writing, cygwin didn't seem to support any
504	multi-byte encodings (you might try "LC_CTYPE=C-UTF-8"), so you are
505	likely limited to 8-bit encodings.
506
507	How does rxvt-unicode determine the encoding to use?	910	How does rxvt-unicode determine the encoding to use?
		911	See next entry.
		912
508	Is there an option to switch encodings?	913	Is there an option to switch encodings?
509	Unlike some other terminals, rxvt-unicode has no encoding switch,	914	Unlike some other terminals, rxvt-unicode has no encoding switch, and no
510	and no specific "utf-8" mode, such as xterm. In fact, it doesn't	915	specific "utf-8" mode, such as xterm. In fact, it doesn't even know
511	even know about UTF-8 or any other encodings with respect to	916	about UTF-8 or any other encodings with respect to terminal I/O.
512	terminal I/O.
513		917
514	The reasons is that there exists a perfectly fine mechanism for	918	The reasons is that there exists a perfectly fine mechanism for
515	selecting the encoding, doing I/O and (most important) communicating	919	selecting the encoding, doing I/O and (most important) communicating
516	this to all applications so everybody agrees on character properties	920	this to all applications so everybody agrees on character properties
517	such as width and code number. This mechanism is the locale.	921	such as width and code number. This mechanism is the locale.
518	Applications not using that info will have problems (for example,	922	Applications not using that info will have problems (for example,
519	"xterm" gets the width of characters wrong as it uses it's own,	923	"xterm" gets the width of characters wrong as it uses its own,
520	locale-independent table under all locales).	924	locale-independent table under all locales).
521		925
522	Rxvt-unicode uses the "LC_CTYPE" locale category to select encoding.	926	Rxvt-unicode uses the "LC_CTYPE" locale category to select encoding. All
523	All programs doing the same (that is, most) will automatically agree	927	programs doing the same (that is, most) will automatically agree in the
524	in the interpretation of characters.	928	interpretation of characters.
525		929
526	Unfortunately, there is no system-independent way to select locales,	930	Unfortunately, there is no system-independent way to select locales, nor
527	nor is there a standard on how locale specifiers will look like.	931	is there a standard on how locale specifiers will look like.
528		932
529	On most systems, the content of the "LC_CTYPE" environment variable	933	On most systems, the content of the "LC_CTYPE" environment variable
530	contains an arbitrary string which corresponds to an	934	contains an arbitrary string which corresponds to an already-installed
531	already-installed locale. Common names for locales are	935	locale. Common names for locales are "en_US.UTF-8", "de_DE.ISO-8859-15",
532	"en_US.UTF-8", "de_DE.ISO-8859-15", "ja_JP.EUC-JP", i.e.	936	"ja_JP.EUC-JP", i.e. "language_country.encoding", but other forms (i.e.
533	"language_country.encoding", but other forms (i.e. "de" or "german")	937	"de" or "german") are also common.
534	are also common.
535		938
536	Rxvt-unicode ignores all other locale categories, and except for the	939	Rxvt-unicode ignores all other locale categories, and except for the
537	encoding, ignores country or language-specific settings, i.e.	940	encoding, ignores country or language-specific settings, i.e.
538	"de_DE.UTF-8" and "ja_JP.UTF-8" are the normally same to	941	"de_DE.UTF-8" and "ja_JP.UTF-8" are the normally same to rxvt-unicode.
539	rxvt-unicode.
540		942
541	If you want to use a specific encoding you have to make sure you	943	If you want to use a specific encoding you have to make sure you start
542	start rxvt-unicode with the correct "LC_CTYPE" category.	944	rxvt-unicode with the correct "LC_CTYPE" category.
543		945
544	Can I switch locales at runtime?	946	Can I switch locales at runtime?
545	Yes, using an escape sequence. Try something like this, which sets	947	Yes, using an escape sequence. Try something like this, which sets
546	rxvt-unicode's idea of "LC_CTYPE".	948	rxvt-unicode's idea of "LC_CTYPE".
547		949
548	printf '\e]701;%s\007' ja_JP.SJIS	950	printf '\33]701;%s\007' ja_JP.SJIS
549		951
550	See also the previous answer.	952	See also the previous answer.
551		953
552	Sometimes this capability is rather handy when you want to work in	954	Sometimes this capability is rather handy when you want to work in one
553	one locale (e.g. "de_DE.UTF-8") but some programs don't support it	955	locale (e.g. "de_DE.UTF-8") but some programs don't support it (e.g.
554	(e.g. UTF-8). For example, I use this script to start "xjdic", which	956	UTF-8). For example, I use this script to start "xjdic", which first
555	first switches to a locale supported by xjdic and back later:	957	switches to a locale supported by xjdic and back later:
556		958
557	printf '\e]701;%s\007' ja_JP.SJIS	959	printf '\33]701;%s\007' ja_JP.SJIS
558	xjdic -js	960	xjdic -js
559	printf '\e]701;%s\007' de_DE.UTF-8	961	printf '\33]701;%s\007' de_DE.UTF-8
560		962
561	You can also use xterm's "luit" program, which usually works fine,	963	You can also use xterm's "luit" program, which usually works fine,
562	except for some locales where character width differs between	964	except for some locales where character width differs between program-
563	program- and rxvt-unicode-locales.	965	and rxvt-unicode-locales.
564		966
565	Can I switch the fonts at runtime?	967	I have problems getting my input method working.
566	Yes, using an escape sequence. Try something like this, which has	968	Try a search engine, as this is slightly different for every input
567	the same effect as using the "-fn" switch, and takes effect	969	method server.
568	immediately:
569		970
570	printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic"	971	Here is a checklist:
571		972
572	This is useful if you e.g. work primarily with japanese (and prefer	973	- Make sure your locale and the imLocale are supported on your OS.
573	a japanese font), but you have to switch to chinese temporarily,	974	Try "locale -a" or check the documentation for your OS.
574	where japanese fonts would only be in your way.
575		975
576	You can think of this as a kind of manual ISO-2022 switching.	976	- Make sure your locale or imLocale matches a locale supported by your
		977	XIM.
		978	For example, kinput2 does not support UTF-8 locales, you should use
		979	"ja_JP.EUC-JP" or equivalent.
577		980
578	Why do italic characters look as if clipped?	981	- Make sure your XIM server is actually running.
579	Many fonts have difficulties with italic characters and hinting. For	982	- Make sure the "XMODIFIERS" environment variable is set correctly when
580	example, the otherwise very nicely hinted font "xft:Bitstream Vera	983	starting rxvt-unicode.
581	Sans Mono" completely fails in it's italic face. A workaround might	984	When you want to use e.g. kinput2, it must be set to "@im=kinput2".
582	be to enable freetype autohinting, i.e. like this:	985	For scim, use "@im=SCIM". You can see what input method servers are
		986	running with this command:
583		987
584	URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true	988	xprop -root XIM_SERVERS
585	URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
586		989
		990	*
		991
587	My input method wants <some encoding> but I want UTF-8, what can I do?	992	My input method wants <some encoding> but I want UTF-8, what can I do?
588	You can specify separate locales for the input method and the rest	993	You can specify separate locales for the input method and the rest of
589	of the terminal, using the resource "imlocale":	994	the terminal, using the resource "imlocale":
590		995
591	URxvt.imlocale: ja_JP.EUC-JP	996	URxvt.imlocale: ja_JP.EUC-JP
592		997
593	Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and	998	Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and still
594	still use your input method. Please note, however, that you will not	999	use your input method. Please note, however, that, depending on your
595	be able to input characters outside "EUC-JP" in a normal way then,	1000	Xlib version, you may not be able to input characters outside "EUC-JP"
596	as your input method limits you.	1001	in a normal way then, as your input method limits you.
597		1002
598	Rxvt-unicode crashes when the X Input Method changes or exits.	1003	Rxvt-unicode crashes when the X Input Method changes or exits.
599	Unfortunately, this is unavoidable, as the XIM protocol is racy by	1004	Unfortunately, this is unavoidable, as the XIM protocol is racy by
600	design. Applications can avoid some crashes at the expense of memory	1005	design. Applications can avoid some crashes at the expense of memory
601	leaks, and Input Methods can avoid some crashes by careful ordering	1006	leaks, and Input Methods can avoid some crashes by careful ordering at
602	at exit time. kinput2 (and derived input methods) generally	1007	exit time. kinput2 (and derived input methods) generally succeeds, while
603	succeeds, while SCIM (or similar input methods) fails. In the end,	1008	SCIM (or similar input methods) fails. In the end, however, crashes
604	however, crashes cannot be completely avoided even if both sides	1009	cannot be completely avoided even if both sides cooperate.
605	cooperate.
606		1010
607	So the only workaround is not to kill your Input Method Servers.	1011	So the only workaround is not to kill your Input Method Servers.
608		1012
609	Rxvt-unicode uses gobs of memory, how can I reduce that?	1013	Operating Systems / Package Maintaining
610	Rxvt-unicode tries to obey the rule of not charging you for	1014	I am using Debian GNU/Linux and have a problem...
611	something you don't use. One thing you should try is to configure	1015	The Debian GNU/Linux package of rxvt-unicode in sarge contains large
612	out all settings that you don't need, for example, Xft support is a	1016	patches that considerably change the behaviour of rxvt-unicode (but
613	resource hog by design, when used. Compiling it out ensures that no	1017	unfortunately this notice has been removed). Before reporting a bug to
614	Xft font will be loaded accidentally when rxvt-unicode tries to find	1018	the original rxvt-unicode author please download and install the genuine
615	a font for your characters.	1019	version (<http://software.schmorp.de#rxvt-unicode>) and try to reproduce
		1020	the problem. If you cannot, chances are that the problems are specific
		1021	to Debian GNU/Linux, in which case it should be reported via the Debian
		1022	Bug Tracking System (use "reportbug" to report the bug).
616		1023
617	Also, many people (me included) like large windows and even larger	1024	For other problems that also affect the Debian package, you can and
618	scrollback buffers: Without "--enable-unicode3", rxvt-unicode will	1025	probably should use the Debian BTS, too, because, after all, it's also a
619	use 6 bytes per screen cell. For a 160x?? window this amounts to	1026	bug in the Debian version and it serves as a reminder for other users
620	almost a kilobyte per line. A scrollback buffer of 10000 lines will	1027	that might encounter the same issue.
621	then (if full) use 10 Megabytes of memory. With "--enable-unicode3"
622	it gets worse, as rxvt-unicode then uses 8 bytes per screen cell.
623		1028
624	Can I speed up Xft rendering somehow?	1029	I am maintaining rxvt-unicode for distribution/OS XXX, any recommendation?
625	Yes, the most obvious way to speed it up is to avoid Xft entirely,	1030	You should build one binary with the default options. configure now
626	as it is simply slow. If you still want Xft fonts you might try to	1031	enables most useful options, and the trend goes to making them
627	disable antialiasing (by appending ":antialias=false"), which saves	1032	runtime-switchable, too, so there is usually no drawback to enabling
628	lots of memory and also speeds up rendering considerably.	1033	them, except higher disk and possibly memory usage. The perl interpreter
		1034	should be enabled, as important functionality (menus, selection, likely
		1035	more in the future) depends on it.
629		1036
630	Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?	1037	You should not overwrite the "perl-ext-common" snd "perl-ext" resources
631	Rxvt-unicode will use whatever you specify as a font. If it needs to	1038	system-wide (except maybe with "defaults"). This will result in useful
632	fall back to it's default font search list it will prefer X11 core	1039	behaviour. If your distribution aims at low memory, add an empty
633	fonts, because they are small and fast, and then use Xft fonts. It	1040	"perl-ext-common" resource to the app-defaults file. This will keep the
634	has antialiasing disabled for most of them, because the author	1041	perl interpreter disabled until the user enables it.
635	thinks they look best that way.
636		1042
637	If you want antialiasing, you have to specify the fonts manually.	1043	If you can/want build more binaries, I recommend building a minimal one
		1044	with "--disable-everything" (very useful) and a maximal one with
		1045	"--enable-everything" (less useful, it will be very big due to a lot of
		1046	encodings built-in that increase download times and are rarely used).
638		1047
639	Mouse cut/paste suddenly no longer works.	1048	I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe?
640	Make sure that mouse reporting is actually turned off since killing	1049	It should be, starting with release 7.1. You are encouraged to properly
641	some editors prematurely may leave the mouse in mouse report mode.	1050	install urxvt with privileges necessary for your OS now.
642	I've heard that tcsh may use mouse reporting unless it otherwise
643	specified. A quick check is to see if cut/paste works when the Alt
644	or Shift keys are depressed.
645		1051
646	What's with this bold/blink stuff?	1052	When rxvt-unicode detects that it runs setuid or setgid, it will fork
647	If no bold colour is set via "colorBD:", bold will invert text using	1053	into a helper process for privileged operations (pty handling on some
648	the standard foreground colour.	1054	systems, utmp/wtmp/lastlog handling on others) and drop privileges
		1055	immediately. This is much safer than most other terminals that keep
		1056	privileges while running (but is more relevant to urxvt, as it contains
		1057	things as perl interpreters, which might be "helpful" to attackers).
649		1058
650	For the standard background colour, blinking will actually make the	1059	This forking is done as the very first within main(), which is very
651	text blink when compiled with "--enable-blinking". with standard	1060	early and reduces possible bugs to initialisation code run before
652	colours. Without "--enable-blinking", the blink attribute will be	1061	main(), or things like the dynamic loader of your system, which should
653	ignored.	1062	result in very little risk.
654		1063
655	On ANSI colours, bold/blink attributes are used to set	1064	On Solaris 9, many line-drawing characters are too wide.
656	high-intensity foreground/background colors.	1065	Seems to be a known bug, read
		1066	<http://nixdoc.net/files/forum/about34198.html>. Some people use the
		1067	following ugly workaround to get non-double-wide-characters working:
657		1068
658	color0-7 are the low-intensity colors.	1069	#define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)
659		1070
660	color8-15 are the corresponding high-intensity colors.	1071	I am on FreeBSD and rxvt-unicode does not seem to work at all.
		1072	Rxvt-unicode requires the symbol "__STDC_ISO_10646__" to be defined in
		1073	your compile environment, or an implementation that implements it,
		1074	whether it defines the symbol or not. "__STDC_ISO_10646__" requires that
		1075	wchar_t is represented as unicode.
661		1076
662	I don't like the screen colors. How do I change them?	1077	As you might have guessed, FreeBSD does neither define this symbol nor
663	You can change the screen colors at run-time using ~/.Xdefaults	1078	does it support it. Instead, it uses its own internal representation of
664	resources (or as long-options).	1079	wchar_t. This is, of course, completely fine with respect to standards.
665		1080
666	Here are values that are supposed to resemble a VGA screen,	1081	However, that means rxvt-unicode only works in "POSIX", "ISO-8859-1" and
667	including the murky brown that passes for low-intensity yellow:	1082	"UTF-8" locales under FreeBSD (which all use Unicode as wchar_t.
668		1083
669	URxvt.color0: #000000	1084	"__STDC_ISO_10646__" is the only sane way to support multi-language apps
670	URxvt.color1: #A80000	1085	in an OS, as using a locale-dependent (and non-standardized)
671	URxvt.color2: #00A800	1086	representation of wchar_t makes it impossible to convert between wchar_t
672	URxvt.color3: #A8A800	1087	(as used by X11 and your applications) and any other encoding without
673	URxvt.color4: #0000A8	1088	implementing OS-specific-wrappers for each and every locale. There
674	URxvt.color5: #A800A8	1089	simply are no APIs to convert wchar_t into anything except the current
675	URxvt.color6: #00A8A8	1090	locale encoding.
676	URxvt.color7: #A8A8A8
677		1091
678	URxvt.color8: #000054	1092	Some applications (such as the formidable mlterm) work around this by
679	URxvt.color9: #FF0054	1093	carrying their own replacement functions for character set handling with
680	URxvt.color10: #00FF54	1094	them, and either implementing OS-dependent hacks or doing multiple
681	URxvt.color11: #FFFF54	1095	conversions (which is slow and unreliable in case the OS implements
682	URxvt.color12: #0000FF	1096	encodings slightly different than the terminal emulator).
683	URxvt.color13: #FF00FF
684	URxvt.color14: #00FFFF
685	URxvt.color15: #FFFFFF
686		1097
687	And here is a more complete set of non-standard colors described	1098	The rxvt-unicode author insists that the right way to fix this is in the
688	(not by me) as "pretty girly".	1099	system libraries once and for all, instead of forcing every app to carry
		1100	complete replacements for them :)
689		1101
690	URxvt.cursorColor: #dc74d1	1102	I use Solaris 9 and it doesn't compile/work/etc.
691	URxvt.pointerColor: #dc74d1	1103	Try the diff in doc/solaris9.patch as a base. It fixes the worst
692	URxvt.background: #0e0e0e	1104	problems with "wcwidth" and a compile problem.
693	URxvt.foreground: #4ad5e1
694	URxvt.color0: #000000
695	URxvt.color8: #8b8f93
696	URxvt.color1: #dc74d1
697	URxvt.color9: #dc74d1
698	URxvt.color2: #0eb8c7
699	URxvt.color10: #0eb8c7
700	URxvt.color3: #dfe37e
701	URxvt.color11: #dfe37e
702	URxvt.color5: #9e88f0
703	URxvt.color13: #9e88f0
704	URxvt.color6: #73f7ff
705	URxvt.color14: #73f7ff
706	URxvt.color7: #e1dddd
707	URxvt.color15: #e1dddd
708		1105
709	How can I start rxvtd in a race-free way?	1106	How can I use rxvt-unicode under cygwin?
710	Try "rxvtd -f -o", which tells rxvtd to open the display, create the	1107	rxvt-unicode should compile and run out of the box on cygwin, using the
711	listening socket and then fork.	1108	X11 libraries that come with cygwin. libW11 emulation is no longer
		1109	supported (and makes no sense, either, as it only supported a single
		1110	font). I recommend starting the X-server in "-multiwindow" or
		1111	"-rootless" mode instead, which will result in similar look&feel as the
		1112	old libW11 emulation.
712		1113
713	What's with the strange Backspace/Delete key behaviour?	1114	At the time of this writing, cygwin didn't seem to support any
714	Assuming that the physical Backspace key corresponds to the	1115	multi-byte encodings (you might try "LC_CTYPE=C-UTF-8"), so you are
715	BackSpace keysym (not likely for Linux ... see the following	1116	likely limited to 8-bit encodings.
716	question) there are two standard values that can be used for
717	Backspace: "^H" and "^?".
718		1117
719	Historically, either value is correct, but rxvt-unicode adopts the
720	debian policy of using "^?" when unsure, because it's the one only
721	only correct choice :).
722
723	Rxvt-unicode tries to inherit the current stty settings and uses the
724	value of `erase' to guess the value for backspace. If rxvt-unicode
725	wasn't started from a terminal (say, from a menu or by remote
726	shell), then the system value of `erase', which corresponds to
727	CERASE in <termios.h>, will be used (which may not be the same as
728	your stty setting).
729
730	For starting a new rxvt-unicode:
731
732	# use Backspace = ^H
733	$ stty erase ^H
734	$ rxvt
735
736	# use Backspace = ^?
737	$ stty erase ^?
738	$ rxvt
739
740	Toggle with "ESC [ 36 h" / "ESC [ 36 l".
741
742	For an existing rxvt-unicode:
743
744	# use Backspace = ^H
745	$ stty erase ^H
746	$ echo -n "^[[36h"
747
748	# use Backspace = ^?
749	$ stty erase ^?
750	$ echo -n "^[[36l"
751
752	This helps satisfy some of the Backspace discrepancies that occur,
753	but if you use Backspace = "^H", make sure that the termcap/terminfo
754	value properly reflects that.
755
756	The Delete key is a another casualty of the ill-defined Backspace
757	problem. To avoid confusion between the Backspace and Delete keys,
758	the Delete key has been assigned an escape sequence to match the
759	vt100 for Execute ("ESC [ 3 ~") and is in the supplied
760	termcap/terminfo.
761
762	Some other Backspace problems:
763
764	some editors use termcap/terminfo, some editors (vim I'm told)
765	expect Backspace = ^H, GNU Emacs (and Emacs-like editors) use ^H for
766	help.
767
768	Perhaps someday this will all be resolved in a consistent manner.
769
770	I don't like the key-bindings. How do I change them?
771	There are some compile-time selections available via configure.
772	Unless you have run "configure" with the "--disable-resources"
773	option you can use the `keysym' resource to alter the keystrings
774	associated with keysyms.
775
776	Here's an example for a URxvt session started using "rxvt -name
777	URxvt"
778
779	URxvt.keysym.Home: \033[1~
780	URxvt.keysym.End: \033[4~
781	URxvt.keysym.C-apostrophe: \033<C-'>
782	URxvt.keysym.C-slash: \033<C-/>
783	URxvt.keysym.C-semicolon: \033<C-;>
784	URxvt.keysym.C-grave: \033<C-`>
785	URxvt.keysym.C-comma: \033<C-,>
786	URxvt.keysym.C-period: \033<C-.>
787	URxvt.keysym.C-0x60: \033<C-`>
788	URxvt.keysym.C-Tab: \033<C-Tab>
789	URxvt.keysym.C-Return: \033<C-Return>
790	URxvt.keysym.S-Return: \033<S-Return>
791	URxvt.keysym.S-space: \033<S-Space>
792	URxvt.keysym.M-Up: \033<M-Up>
793	URxvt.keysym.M-Down: \033<M-Down>
794	URxvt.keysym.M-Left: \033<M-Left>
795	URxvt.keysym.M-Right: \033<M-Right>
796	URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
797	URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
798	URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
799
800	See some more examples in the documentation for the keysym resource.
801
802	I'm using keyboard model XXX that has extra Prior/Next/Insert keys. How
803	do I make use of them? For example, the Sun Keyboard type 4 has the
804	following mappings that rxvt-unicode doesn't recognize.
805	KP_Insert == Insert
806	F22 == Print
807	F27 == Home
808	F29 == Prior
809	F33 == End
810	F35 == Next
811
812	Rather than have rxvt-unicode try to accommodate all the various
813	possible keyboard mappings, it is better to use `xmodmap' to remap
814	the keys as required for your particular machine.
815
816	How do I distinguish wether I'm running rxvt-unicode or a regular xterm?
817	I need this to decide about setting colors etc.
818	rxvt and rxvt-unicode always export the variable "COLORTERM", so you
819	can check and see if that is set. Note that several programs, JED,
820	slrn, Midnight Commander automatically check this variable to decide
821	whether or not to use color.
822
823	How do I set the correct, full IP address for the DISPLAY variable?
824	If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled
825	insecure mode then it is possible to use the following shell script
826	snippets to correctly set the display. If your version of
827	rxvt-unicode wasn't also compiled with ESCZ_ANSWER (as assumed in
828	these snippets) then the COLORTERM variable can be used to
829	distinguish rxvt-unicode from a regular xterm.
830
831	Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell
832	script snippets:
833
834	# Bourne/Korn/POSIX family of shells:
835	[ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
836	if [ ${TERM:-foo} = xterm ]; then
837	stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
838	echo -n '^[Z'
839	read term_id
840	stty icanon echo
841	if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
842	echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
843	read DISPLAY # set it in our local shell
844	fi
845	fi
846
847	How do I compile the manual pages for myself?
848	You need to have a recent version of perl installed as
849	/usr/bin/perl, one that comes with pod2man, pod2text and pod2html.
850	Then go to the doc subdirectory and enter "make alldoc".
851
852	My question isn't answered here, can I ask a human?
853	Before sending me mail, you could go to IRC: "irc.freenode.net",
854	channel "#rxvt-unicode" has some rxvt-unicode enthusiasts that might
855	be interested in learning about new and exciting problems (but not
856	FAQs :).
857

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Comparing rxvt-unicode/README.FAQ (file contents):
Revision 1.33 by root, Sat Jan 28 22:16:58 2006 UTC vs.
Revision 1.46 by root, Sat Feb 17 20:36:35 2007 UTC