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Revision 1.123 by root, Sat Dec 16 03:48:49 2006 UTC

…		…
17		17
18	This document contains the FAQ, the RXVT TECHNICAL REFERENCE documenting	18	This document contains the FAQ, the RXVT TECHNICAL REFERENCE documenting
19	all escape sequences, and other background information.	19	all escape sequences, and other background information.
20		20
21	The newest version of this document is also available on the World Wide Web at	21	The newest version of this document is also available on the World Wide Web at
22	L<http://cvs.schmorp.de/browse/*checkout*/rxvt-unicode/doc/rxvt.7.html>.	22	L<http://cvs.schmorp.de/browse/rxvt-unicode/doc/rxvt.7.html>.
23		23
24	=head1 FREQUENTLY ASKED QUESTIONS	24	=head1 RXVT-UNICODE/URXVT FREQUENTLY ASKED QUESTIONS
25		25
26	=head2 The new selection selects pieces that are too big, how can I select single words?
27		26
28	If you want to select e.g. alphanumeric words, you can use the following	27	=head2 Meta, Features & Commandline Issues
29	setting:
30		28
31	URxvt.selection.pattern-0: ([[:word:]]+)	29	=head3 My question isn't answered here, can I ask a human?
32		30
33	If you click more than twice, the selection will be extended	31	Before sending me mail, you could go to IRC: C<irc.freenode.net>,
34	more and more.	32	channel C<#rxvt-unicode> has some rxvt-unicode enthusiasts that might be
		33	interested in learning about new and exciting problems (but not FAQs :).
35		34
36	To get a selection that is very similar to the old code, try this pattern:	35	=head3 Does it support tabs, can I have a tabbed rxvt-unicode?
37		36
38	URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+)	37	Beginning with version 7.3, there is a perl extension that implements a
		38	simple tabbed terminal. It is installed by default, so any of these should
		39	give you tabs:
39		40
40	Please also note that the I<LeftClick Shift-LeftClik> combination also	41	@@URXVT_NAME@@ -pe tabbed
41	selects words like the old code.
42		42
43	=head2 I don't like the new selection/popups/hotkeys/perl, how do I change/disable it?
44
45	You can disable the perl extension completely by setting the
46	B<perl-ext-common> resource to the empty string, which also keeps
47	rxvt-unicode from initialising perl, saving memory.
48
49	If you only want to disable specific features, you first have to
50	identify which perl extension is responsible. For this, read the section
51	B<PREPACKAGED EXTENSIONS> in the @@RXVT_NAME@@perl(3) manpage. For
52	example, to disable the B<selection-popup> and B<option-popup>, specify
53	this B<perl-ext-common> resource:
54
55	URxvt.perl-ext-common: default,-selection-popup,-option-popup
56
57	This will keep the default extensions, but disable the two popup
58	extensions. Some extensions can also be configured, for example,
59	scrollback search mode is triggered by B<M-s>. You can move it to any
60	other combination either by setting the B<searchable-scrollback> resource:
61
62	URxvt.searchable-scrollback: CM-s
63
64	=head2 The cursor moves when selecting text in the current input line, how do I switch this off?
65
66	See next entry.
67
68	=head2 During rlogin/ssh/telnet/etc. sessions, clicking near the cursor outputs strange escape sequences, how do I fix this?
69
70	These are caused by the C<readline> perl extension. Under normal
71	circumstances, it will move your cursor around when you click into the
72	line that contains it. It tries hard not to do this at the wrong moment,
73	but when running a program that doesn't parse cursor movements or in some
74	cases during rlogin sessions, it fails to detect this properly.
75
76	You can permamently switch this feature off by disabling the C<readline>
77	extension:
78
79	URxvt.perl-ext-common: default,-readline	43	URxvt.perl-ext-common: default,tabbed
80		44
81	=head2 Why doesn't rxvt-unicode read my resources?	45	It will also work fine with tabbing functionality of many window managers
		46	or similar tabbing programs, and its embedding-features allow it to be
		47	embedded into other programs, as witnessed by F<doc/rxvt-tabbed> or
		48	the upcoming C<Gtk2::URxvt> perl module, which features a tabbed urxvt
		49	(murxvt) terminal as an example embedding application.
82		50
83	Well, why, indeed? It does, in a way very similar to other X	51	=head3 How do I know which rxvt-unicode version I'm using?
84	applications. Most importantly, this means that if you or your OS loads
85	resources into the X display (the right way to do it), rxvt-unicode will
86	ignore any resource files in your home directory. It will only read
87	F<$HOME/.Xdefaults> when no resources are attached to the display.
88		52
89	If you have or use an F<$HOME/.Xresources> file, chances are that	53	The version number is displayed with the usage (-h). Also the escape
90	resources are loaded into your X-server. In this case, you have to	54	sequence C<ESC [ 8 n> sets the window title to the version number. When
91	re-login after every change (or run F<xrdb -merge $HOME/.Xresources>).	55	using the @@URXVT_NAME@@c client, the version displayed is that of the
		56	daemon.
92		57
93	Also consider the form resources have to use:	58	=head3 Rxvt-unicode uses gobs of memory, how can I reduce that?
94		59
95	URxvt.resource: value	60	Rxvt-unicode tries to obey the rule of not charging you for something you
		61	don't use. One thing you should try is to configure out all settings that
		62	you don't need, for example, Xft support is a resource hog by design,
		63	when used. Compiling it out ensures that no Xft font will be loaded
		64	accidentally when rxvt-unicode tries to find a font for your characters.
96		65
97	If you want to use another form (there are lots of different ways of	66	Also, many people (me included) like large windows and even larger
98	specifying resources), make sure you understand wether and why it	67	scrollback buffers: Without C<--enable-unicode3>, rxvt-unicode will use
99	works. If unsure, use the form above.	68	6 bytes per screen cell. For a 160x?? window this amounts to almost a
		69	kilobyte per line. A scrollback buffer of 10000 lines will then (if full)
		70	use 10 Megabytes of memory. With C<--enable-unicode3> it gets worse, as
		71	rxvt-unicode then uses 8 bytes per screen cell.
100		72
101	=head2 I can't get transparency working, what am I doing wrong?	73	=head3 How can I start @@URXVT_NAME@@d in a race-free way?
102		74
103	First of all, transparency isn't officially supported in rxvt-unicode, so	75	Try C<@@URXVT_NAME@@d -f -o>, which tells @@URXVT_NAME@@d to open the
104	you are mostly on your own. Do not bug the author about it (but you may	76	display, create the listening socket and then fork.
105	bug everybody else). Also, if you can't get it working consider it a rite
106	of passage: ... and you failed.
107		77
108	Here are four ways to get transparency. B<Do> read the manpage and option	78	=head3 How can I start @@URXVT_NAME@@d automatically when I run @@URXVT_NAME@@c?
109	descriptions for the programs mentioned and rxvt-unicode. Really, do it!
110		79
111	1. Use inheritPixmap:	80	If you want to start @@URXVT_NAME@@d automatically whenever you run
		81	@@URXVT_NAME@@c and the daemon isn't running yet, use this script:
112		82
113	Esetroot wallpaper.jpg	83	#!/bin/sh
114	@@RXVT_NAME@@ -ip -tint red -sh 40	84	@@URXVT_NAME@@c "$@"
		85	if [ $? -eq 2 ]; then
		86	@@URXVT_NAME@@d -q -o -f
		87	@@URXVT_NAME@@c "$@"
		88	fi
115		89
116	That works. If you think it doesn't, you lack transparency and tinting	90	This tries to create a new terminal, and if fails with exit status 2,
117	support, or you are unable to read.	91	meaning it couldn't connect to the daemon, it will start the daemon and
		92	re-run the command. Subsequent invocations of the script will re-use the
		93	existing daemon.
118		94
119	2. Use a simple pixmap and emulate pseudo-transparency. This enables you	95	=head3 How do I distinguish whether I'm running rxvt-unicode or a regular xterm? I need this to decide about setting colors etc.
120	to use effects other than tinting and shading: Just shade/tint/whatever
121	your picture with gimp:
122		96
123	convert wallpaper.jpg -blur 20x20 -modulate 30 background.xpm	97	The original rxvt and rxvt-unicode always export the variable "COLORTERM",
124	@@RXVT_NAME@@ -pixmap background.xpm -pe automove-background	98	so you can check and see if that is set. Note that several programs, JED,
		99	slrn, Midnight Commander automatically check this variable to decide
		100	whether or not to use color.
125		101
126	That works. If you think it doesn't, you lack XPM and Perl support, or you	102	=head3 How do I set the correct, full IP address for the DISPLAY variable?
127	are unable to read.
128		103
129	3. Use an ARGB visual:	104	If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled
		105	insecure mode then it is possible to use the following shell script
		106	snippets to correctly set the display. If your version of rxvt-unicode
		107	wasn't also compiled with ESCZ_ANSWER (as assumed in these snippets) then
		108	the COLORTERM variable can be used to distinguish rxvt-unicode from a
		109	regular xterm.
130		110
131	@@RXVT_NAME@@ -depth 32 -fg grey90 -bg rgba:0000/0000/4444/cccc	111	Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script
		112	snippets:
132		113
133	This requires XFT support, and the support of your X-server. If that	114	# Bourne/Korn/POSIX family of shells:
134	doesn't work for you, blame Xorg and Keith Packard. ARGB visuals aren't	115	[ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
135	there yet, no matter what they claim. Rxvt-Unicode contains the neccessary	116	if [ ${TERM:-foo} = xterm ]; then
136	bugfixes and workarounds for Xft and Xlib to make it work, but that	117	stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
137	doesn't mean that your WM has the required kludges in place.	118	echo -n '^[Z'
		119	read term_id
		120	stty icanon echo
		121	if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
		122	echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
		123	read DISPLAY # set it in our local shell
		124	fi
		125	fi
138		126
139	4. Use xcompmgr and let it do the job:	127	=head3 How do I compile the manual pages on my own?
140		128
141	xprop -frame -f _NET_WM_WINDOW_OPACITY 32c \	129	You need to have a recent version of perl installed as F</usr/bin/perl>,
142	-set _NET_WM_WINDOW_OPACITY 0xc0000000	130	one that comes with F<pod2man>, F<pod2text> and F<pod2html>. Then go to
		131	the doc subdirectory and enter C<make alldoc>.
143		132
144	Then click on a window you want to make transparent. Replace C<0xc0000000>
145	by other values to change the degree of opacity. If it doesn't work and
146	your server crashes, you got to keep the pieces.
147
148	=head2 Isn't rxvt supposed to be small? Don't all those features bloat?	133	=head3 Isn't rxvt-unicode supposed to be small? Don't all those features bloat?
149		134
150	I often get asked about this, and I think, no, they didn't cause extra	135	I often get asked about this, and I think, no, they didn't cause extra
151	bloat. If you compare a minimal rxvt and a minimal urxvt, you can see	136	bloat. If you compare a minimal rxvt and a minimal urxvt, you can see
152	that the urxvt binary is larger (due to some encoding tables always being	137	that the urxvt binary is larger (due to some encoding tables always being
153	compiled in), but it actually uses less memory (RSS) after startup. Even	138	compiled in), but it actually uses less memory (RSS) after startup. Even
…		…
157		142
158	text data bss drs rss filename	143	text data bss drs rss filename
159	98398 1664 24 15695 1824 rxvt --disable-everything	144	98398 1664 24 15695 1824 rxvt --disable-everything
160	188985 9048 66616 18222 1788 urxvt --disable-everything	145	188985 9048 66616 18222 1788 urxvt --disable-everything
161		146
162	When you C<--enable-everything> (which _is_ unfair, as this involves xft	147	When you C<--enable-everything> (which I<is> unfair, as this involves xft
163	and full locale/XIM support which are quite bloaty inside libX11 and my	148	and full locale/XIM support which are quite bloaty inside libX11 and my
164	libc), the two diverge, but not unreasnobaly so.	149	libc), the two diverge, but not unreasonably so.
165		150
166	text data bss drs rss filename	151	text data bss drs rss filename
167	163431 2152 24 20123 2060 rxvt --enable-everything	152	163431 2152 24 20123 2060 rxvt --enable-everything
168	1035683 49680 66648 29096 3680 urxvt --enable-everything	153	1035683 49680 66648 29096 3680 urxvt --enable-everything
169		154
…		…
185	(21152k + extra 4204k in separate processes) or konsole (22200k + extra	170	(21152k + extra 4204k in separate processes) or konsole (22200k + extra
186	43180k in daemons that stay around after exit, plus half a minute of	171	43180k in daemons that stay around after exit, plus half a minute of
187	startup time, including the hundreds of warnings it spits out), it fares	172	startup time, including the hundreds of warnings it spits out), it fares
188	extremely well *g*.	173	extremely well *g*.
189		174
190	=head2 Why C++, isn't that unportable/bloated/uncool?	175	=head3 Why C++, isn't that unportable/bloated/uncool?
191		176
192	Is this a question? :) It comes up very often. The simple answer is: I had	177	Is this a question? :) It comes up very often. The simple answer is: I had
193	to write it, and C++ allowed me to write and maintain it in a fraction	178	to write it, and C++ allowed me to write and maintain it in a fraction
194	of the time and effort (which is a scarce resource for me). Put even	179	of the time and effort (which is a scarce resource for me). Put even
195	shorter: It simply wouldn't exist without C++.	180	shorter: It simply wouldn't exist without C++.
…		…
219	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)	204	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
220		205
221	No large bloated libraries (of course, none were linked in statically),	206	No large bloated libraries (of course, none were linked in statically),
222	except maybe libX11 :)	207	except maybe libX11 :)
223		208
224	=head2 Does it support tabs, can I have a tabbed rxvt-unicode?
225		209
226	Beginning with version 7.3, there is a perl extension that implements a	210	=head2 Rendering, Font & Look and Feel Issues
227	simple tabbed terminal. It is installed by default, so any of these should
228	give you tabs:
229		211
230	@@RXVT_NAME@@ -pe tabbed	212	=head3 I can't get transparency working, what am I doing wrong?
231		213
		214	First of all, transparency isn't officially supported in rxvt-unicode, so
		215	you are mostly on your own. Do not bug the author about it (but you may
		216	bug everybody else). Also, if you can't get it working consider it a rite
		217	of passage: ... and you failed.
		218
		219	Here are four ways to get transparency. B<Do> read the manpage and option
		220	descriptions for the programs mentioned and rxvt-unicode. Really, do it!
		221
		222	1. Use inheritPixmap:
		223
		224	Esetroot wallpaper.jpg
		225	@@URXVT_NAME@@ -ip -tint red -sh 40
		226
		227	That works. If you think it doesn't, you lack transparency and tinting
		228	support, or you are unable to read.
		229
		230	2. Use a simple pixmap and emulate pseudo-transparency. This enables you
		231	to use effects other than tinting and shading: Just shade/tint/whatever
		232	your picture with gimp or any other tool:
		233
		234	convert wallpaper.jpg -blur 20x20 -modulate 30 background.xpm
		235	@@URXVT_NAME@@ -pixmap background.xpm -pe automove-background
		236
		237	That works. If you think it doesn't, you lack XPM and Perl support, or you
		238	are unable to read.
		239
		240	3. Use an ARGB visual:
		241
		242	@@URXVT_NAME@@ -depth 32 -fg grey90 -bg rgba:0000/0000/4444/cccc
		243
		244	This requires XFT support, and the support of your X-server. If that
		245	doesn't work for you, blame Xorg and Keith Packard. ARGB visuals aren't
		246	there yet, no matter what they claim. Rxvt-Unicode contains the necessary
		247	bugfixes and workarounds for Xft and Xlib to make it work, but that
		248	doesn't mean that your WM has the required kludges in place.
		249
		250	4. Use xcompmgr and let it do the job:
		251
		252	xprop -frame -f _NET_WM_WINDOW_OPACITY 32c \
		253	-set _NET_WM_WINDOW_OPACITY 0xc0000000
		254
		255	Then click on a window you want to make transparent. Replace C<0xc0000000>
		256	by other values to change the degree of opacity. If it doesn't work and
		257	your server crashes, you got to keep the pieces.
		258
		259	=head3 Why does rxvt-unicode sometimes leave pixel droppings?
		260
		261	Most fonts were not designed for terminal use, which means that character
		262	size varies a lot. A font that is otherwise fine for terminal use might
		263	contain some characters that are simply too wide. Rxvt-unicode will avoid
		264	these characters. For characters that are just "a bit" too wide a special
		265	"careful" rendering mode is used that redraws adjacent characters.
		266
		267	All of this requires that fonts do not lie about character sizes,
		268	however: Xft fonts often draw glyphs larger than their acclaimed bounding
		269	box, and rxvt-unicode has no way of detecting this (the correct way is to
		270	ask for the character bounding box, which unfortunately is wrong in these
		271	cases).
		272
		273	It's not clear (to me at least), whether this is a bug in Xft, freetype,
		274	or the respective font. If you encounter this problem you might try using
		275	the C<-lsp> option to give the font more height. If that doesn't work, you
		276	might be forced to use a different font.
		277
		278	All of this is not a problem when using X11 core fonts, as their bounding
		279	box data is correct.
		280
		281	=head3 How can I keep rxvt-unicode from using reverse video so much?
		282
		283	First of all, make sure you are running with the right terminal settings
		284	(C<TERM=rxvt-unicode>), which will get rid of most of these effects. Then
		285	make sure you have specified colours for italic and bold, as otherwise
		286	rxvt-unicode might use reverse video to simulate the effect:
		287
		288	URxvt.colorBD: white
		289	URxvt.colorIT: green
		290
		291	=head3 Some programs assume totally weird colours (red instead of blue), how can I fix that?
		292
		293	For some unexplainable reason, some rare programs assume a very weird
		294	colour palette when confronted with a terminal with more than the standard
		295	8 colours (rxvt-unicode supports 88). The right fix is, of course, to fix
		296	these programs not to assume non-ISO colours without very good reasons.
		297
		298	In the meantime, you can either edit your C<rxvt-unicode> terminfo
		299	definition to only claim 8 colour support or use C<TERM=rxvt>, which will
		300	fix colours but keep you from using other rxvt-unicode features.
		301
		302	=head3 Can I switch the fonts at runtime?
		303
		304	Yes, using an escape sequence. Try something like this, which has the same
		305	effect as using the C<-fn> switch, and takes effect immediately:
		306
		307	printf '\33]50;%s\007' "9x15bold,xft:Kochi Gothic"
		308
		309	This is useful if you e.g. work primarily with japanese (and prefer a
		310	japanese font), but you have to switch to chinese temporarily, where
		311	japanese fonts would only be in your way.
		312
		313	You can think of this as a kind of manual ISO-2022 switching.
		314
		315	=head3 Why do italic characters look as if clipped?
		316
		317	Many fonts have difficulties with italic characters and hinting. For
		318	example, the otherwise very nicely hinted font C<xft:Bitstream Vera Sans
		319	Mono> completely fails in its italic face. A workaround might be to
		320	enable freetype autohinting, i.e. like this:
		321
		322	URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
		323	URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
		324
		325	=head3 Can I speed up Xft rendering somehow?
		326
		327	Yes, the most obvious way to speed it up is to avoid Xft entirely, as
		328	it is simply slow. If you still want Xft fonts you might try to disable
		329	antialiasing (by appending C<:antialias=false>), which saves lots of
		330	memory and also speeds up rendering considerably.
		331
		332	=head3 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
		333
		334	Rxvt-unicode will use whatever you specify as a font. If it needs to
		335	fall back to its default font search list it will prefer X11 core
		336	fonts, because they are small and fast, and then use Xft fonts. It has
		337	antialiasing disabled for most of them, because the author thinks they
		338	look best that way.
		339
		340	If you want antialiasing, you have to specify the fonts manually.
		341
		342	=head3 What's with this bold/blink stuff?
		343
		344	If no bold colour is set via C<colorBD:>, bold will invert text using the
		345	standard foreground colour.
		346
		347	For the standard background colour, blinking will actually make the
		348	text blink when compiled with C<--enable-blinking>. with standard
		349	colours. Without C<--enable-blinking>, the blink attribute will be
		350	ignored.
		351
		352	On ANSI colours, bold/blink attributes are used to set high-intensity
		353	foreground/background colors.
		354
		355	color0-7 are the low-intensity colors.
		356
		357	color8-15 are the corresponding high-intensity colors.
		358
		359	=head3 I don't like the screen colors. How do I change them?
		360
		361	You can change the screen colors at run-time using F<~/.Xdefaults>
		362	resources (or as long-options).
		363
		364	Here are values that are supposed to resemble a VGA screen,
		365	including the murky brown that passes for low-intensity yellow:
		366
		367	URxvt.color0: #000000
		368	URxvt.color1: #A80000
		369	URxvt.color2: #00A800
		370	URxvt.color3: #A8A800
		371	URxvt.color4: #0000A8
		372	URxvt.color5: #A800A8
		373	URxvt.color6: #00A8A8
		374	URxvt.color7: #A8A8A8
		375
		376	URxvt.color8: #000054
		377	URxvt.color9: #FF0054
		378	URxvt.color10: #00FF54
		379	URxvt.color11: #FFFF54
		380	URxvt.color12: #0000FF
		381	URxvt.color13: #FF00FF
		382	URxvt.color14: #00FFFF
		383	URxvt.color15: #FFFFFF
		384
		385	And here is a more complete set of non-standard colors.
		386
		387	URxvt.cursorColor: #dc74d1
		388	URxvt.pointerColor: #dc74d1
		389	URxvt.background: #0e0e0e
		390	URxvt.foreground: #4ad5e1
		391	URxvt.color0: #000000
		392	URxvt.color8: #8b8f93
		393	URxvt.color1: #dc74d1
		394	URxvt.color9: #dc74d1
		395	URxvt.color2: #0eb8c7
		396	URxvt.color10: #0eb8c7
		397	URxvt.color3: #dfe37e
		398	URxvt.color11: #dfe37e
		399	URxvt.color5: #9e88f0
		400	URxvt.color13: #9e88f0
		401	URxvt.color6: #73f7ff
		402	URxvt.color14: #73f7ff
		403	URxvt.color7: #e1dddd
		404	URxvt.color15: #e1dddd
		405
		406	They have been described (not by me) as "pretty girly".
		407
		408	=head3 Why do some characters look so much different than others?
		409
		410	See next entry.
		411
		412	=head3 How does rxvt-unicode choose fonts?
		413
		414	Most fonts do not contain the full range of Unicode, which is
		415	fine. Chances are that the font you (or the admin/package maintainer of
		416	your system/os) have specified does not cover all the characters you want
		417	to display.
		418
		419	B<rxvt-unicode> makes a best-effort try at finding a replacement
		420	font. Often the result is fine, but sometimes the chosen font looks
		421	bad/ugly/wrong. Some fonts have totally strange characters that don't
		422	resemble the correct glyph at all, and rxvt-unicode lacks the artificial
		423	intelligence to detect that a specific glyph is wrong: it has to believe
		424	the font that the characters it claims to contain indeed look correct.
		425
		426	In that case, select a font of your taste and add it to the font list,
		427	e.g.:
		428
		429	@@URXVT_NAME@@ -fn basefont,font2,font3...
		430
		431	When rxvt-unicode sees a character, it will first look at the base
		432	font. If the base font does not contain the character, it will go to the
		433	next font, and so on. Specifying your own fonts will also speed up this
		434	search and use less resources within rxvt-unicode and the X-server.
		435
		436	The only limitation is that none of the fonts may be larger than the base
		437	font, as the base font defines the terminal character cell size, which
		438	must be the same due to the way terminals work.
		439
		440	=head3 Why do some chinese characters look so different than others?
		441
		442	This is because there is a difference between script and language --
		443	rxvt-unicode does not know which language the text that is output is,
		444	as it only knows the unicode character codes. If rxvt-unicode first
		445	sees a japanese/chinese character, it might choose a japanese font for
		446	display. Subsequent japanese characters will use that font. Now, many
		447	chinese characters aren't represented in japanese fonts, so when the first
		448	non-japanese character comes up, rxvt-unicode will look for a chinese font
		449	-- unfortunately at this point, it will still use the japanese font for
		450	chinese characters that are also in the japanese font.
		451
		452	The workaround is easy: just tag a chinese font at the end of your font
		453	list (see the previous question). The key is to view the font list as
		454	a preference list: If you expect more japanese, list a japanese font
		455	first. If you expect more chinese, put a chinese font first.
		456
		457	In the future it might be possible to switch language preferences at
		458	runtime (the internal data structure has no problem with using different
		459	fonts for the same character at the same time, but no interface for this
		460	has been designed yet).
		461
		462	Until then, you might get away with switching fonts at runtime (see L<Can
		463	I switch the fonts at runtime?> later in this document).
		464
		465	=head2 Keyboard, Mouse & User Interaction
		466
		467	=head3 The new selection selects pieces that are too big, how can I select single words?
		468
		469	If you want to select e.g. alphanumeric words, you can use the following
		470	setting:
		471
		472	URxvt.selection.pattern-0: ([[:word:]]+)
		473
		474	If you click more than twice, the selection will be extended
		475	more and more.
		476
		477	To get a selection that is very similar to the old code, try this pattern:
		478
		479	URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+)
		480
		481	Please also note that the I<LeftClick Shift-LeftClik> combination also
		482	selects words like the old code.
		483
		484	=head3 I don't like the new selection/popups/hotkeys/perl, how do I change/disable it?
		485
		486	You can disable the perl extension completely by setting the
		487	B<perl-ext-common> resource to the empty string, which also keeps
		488	rxvt-unicode from initialising perl, saving memory.
		489
		490	If you only want to disable specific features, you first have to
		491	identify which perl extension is responsible. For this, read the section
		492	B<PREPACKAGED EXTENSIONS> in the @@URXVT_NAME@@perl(3) manpage. For
		493	example, to disable the B<selection-popup> and B<option-popup>, specify
		494	this B<perl-ext-common> resource:
		495
		496	URxvt.perl-ext-common: default,-selection-popup,-option-popup
		497
		498	This will keep the default extensions, but disable the two popup
		499	extensions. Some extensions can also be configured, for example,
		500	scrollback search mode is triggered by B<M-s>. You can move it to any
		501	other combination either by setting the B<searchable-scrollback> resource:
		502
		503	URxvt.searchable-scrollback: CM-s
		504
		505	=head3 The cursor moves when selecting text in the current input line, how do I switch this off?
		506
		507	See next entry.
		508
		509	=head3 During rlogin/ssh/telnet/etc. sessions, clicking near the cursor outputs strange escape sequences, how do I fix this?
		510
		511	These are caused by the C<readline> perl extension. Under normal
		512	circumstances, it will move your cursor around when you click into the
		513	line that contains it. It tries hard not to do this at the wrong moment,
		514	but when running a program that doesn't parse cursor movements or in some
		515	cases during rlogin sessions, it fails to detect this properly.
		516
		517	You can permanently switch this feature off by disabling the C<readline>
		518	extension:
		519
232	URxvt.perl-ext-common: default,tabbed	520	URxvt.perl-ext-common: default,-readline
233		521
234	It will also work fine with tabbing functionality of many window managers	522	=head3 My numerical keypad acts weird and generates differing output?
235	or similar tabbing programs, and its embedding-features allow it to be
236	embedded into other programs, as witnessed by F<doc/rxvt-tabbed> or
237	the upcoming C<Gtk2::URxvt> perl module, which features a tabbed urxvt
238	(murxvt) terminal as an example embedding application.
239		523
240	=head2 How do I know which rxvt-unicode version I'm using?	524	Some Debian GNUL/Linux users seem to have this problem, although no
		525	specific details were reported so far. It is possible that this is caused
		526	by the wrong C<TERM> setting, although the details of whether and how
		527	this can happen are unknown, as C<TERM=rxvt> should offer a compatible
		528	keymap. See the answer to the previous question, and please report if that
		529	helped.
241		530
242	The version number is displayed with the usage (-h). Also the escape	531	=head3 My Compose (Multi_key) key is no longer working.
243	sequence C<ESC [ 8 n> sets the window title to the version number. When
244	using the @@RXVT_NAME@@c client, the version displayed is that of the
245	daemon.
246		532
247	=head2 I am using Debian GNU/Linux and have a problem...	533	The most common causes for this are that either your locale is not set
		534	correctly, or you specified a B<preeditStyle> that is not supported by
		535	your input method. For example, if you specified B<OverTheSpot> and
		536	your input method (e.g. the default input method handling Compose keys)
		537	does not support this (for instance because it is not visual), then
		538	rxvt-unicode will continue without an input method.
248		539
249	The Debian GNU/Linux package of rxvt-unicode in sarge contains large	540	In this case either do not specify a B<preeditStyle> or specify more than
250	patches that considerably change the behaviour of rxvt-unicode (but	541	one pre-edit style, such as B<OverTheSpot,Root,None>.
251	unfortunately this notice has been removed). Before reporting a bug to
252	the original rxvt-unicode author please download and install the genuine
253	version (L<http://software.schmorp.de#rxvt-unicode>) and try to reproduce
254	the problem. If you cannot, chances are that the problems are specific to
255	Debian GNU/Linux, in which case it should be reported via the Debian Bug
256	Tracking System (use C<reportbug> to report the bug).
257		542
258	For other problems that also affect the Debian package, you can and	543	=head3 I cannot type C<Ctrl-Shift-2> to get an ASCII NUL character due to ISO 14755
259	probably should use the Debian BTS, too, because, after all, it's also a
260	bug in the Debian version and it serves as a reminder for other users that
261	might encounter the same issue.
262		544
263	=head2 I am maintaining rxvt-unicode for distribution/OS XXX, any recommendation?	545	Either try C<Ctrl-2> alone (it often is mapped to ASCII NUL even on
		546	international keyboards) or simply use ISO 14755 support to your
		547	advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for other
		548	codes, too, such as C<Ctrl-Shift-1-d> to type the default telnet escape
		549	character and so on.
264		550
265	You should build one binary with the default options. F<configure>	551	=head3 Mouse cut/paste suddenly no longer works.
266	now enables most useful options, and the trend goes to making them
267	runtime-switchable, too, so there is usually no drawback to enbaling them,
268	except higher disk and possibly memory usage. The perl interpreter should
269	be enabled, as important functionality (menus, selection, likely more in
270	the future) depends on it.
271		552
272	You should not overwrite the C<perl-ext-common> snd C<perl-ext> resources	553	Make sure that mouse reporting is actually turned off since killing
273	system-wide (except maybe with C<defaults>). This will result in useful	554	some editors prematurely may leave the mouse in mouse report mode. I've
274	behaviour. If your distribution aims at low memory, add an empty	555	heard that tcsh may use mouse reporting unless it otherwise specified. A
275	C<perl-ext-common> resource to the app-defaults file. This will keep the	556	quick check is to see if cut/paste works when the Alt or Shift keys are
276	perl interpreter disabled until the user enables it.	557	depressed.
277		558
278	If you can/want build more binaries, I recommend building a minimal	559	=head3 What's with the strange Backspace/Delete key behaviour?
279	one with C<--disable-everything> (very useful) and a maximal one with
280	C<--enable-everything> (less useful, it will be very big due to a lot of
281	encodings built-in that increase download times and are rarely used).
282		560
283	=head2 I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe?	561	Assuming that the physical Backspace key corresponds to the
		562	Backspace keysym (not likely for Linux ... see the following
		563	question) there are two standard values that can be used for
		564	Backspace: C<^H> and C<^?>.
284		565
285	It should be, starting with release 7.1. You are encouraged to properly	566	Historically, either value is correct, but rxvt-unicode adopts the debian
286	install urxvt with privileges necessary for your OS now.	567	policy of using C<^?> when unsure, because it's the one only only correct
		568	choice :).
287		569
288	When rxvt-unicode detects that it runs setuid or setgid, it will fork	570	Rxvt-unicode tries to inherit the current stty settings and uses the value
289	into a helper process for privileged operations (pty handling on some	571	of `erase' to guess the value for backspace. If rxvt-unicode wasn't
290	systems, utmp/wtmp/lastlog handling on others) and drop privileges	572	started from a terminal (say, from a menu or by remote shell), then the
291	immediately. This is much safer than most other terminals that keep	573	system value of `erase', which corresponds to CERASE in <termios.h>, will
292	privileges while running (but is more relevant to urxvt, as it contains	574	be used (which may not be the same as your stty setting).
293	things as perl interpreters, which might be "helpful" to attackers).
294		575
295	This forking is done as the very first within main(), which is very early	576	For starting a new rxvt-unicode:
296	and reduces possible bugs to initialisation code run before main(), or
297	things like the dynamic loader of your system, which should result in very
298	little risk.
299		577
		578	# use Backspace = ^H
		579	$ stty erase ^H
		580	$ @@URXVT_NAME@@
		581
		582	# use Backspace = ^?
		583	$ stty erase ^?
		584	$ @@URXVT_NAME@@
		585
		586	Toggle with C<ESC [ 36 h> / C<ESC [ 36 l>.
		587
		588	For an existing rxvt-unicode:
		589
		590	# use Backspace = ^H
		591	$ stty erase ^H
		592	$ echo -n "^[[36h"
		593
		594	# use Backspace = ^?
		595	$ stty erase ^?
		596	$ echo -n "^[[36l"
		597
		598	This helps satisfy some of the Backspace discrepancies that occur, but
		599	if you use Backspace = C<^H>, make sure that the termcap/terminfo value
		600	properly reflects that.
		601
		602	The Delete key is a another casualty of the ill-defined Backspace problem.
		603	To avoid confusion between the Backspace and Delete keys, the Delete
		604	key has been assigned an escape sequence to match the vt100 for Execute
		605	(C<ESC [ 3 ~>) and is in the supplied termcap/terminfo.
		606
		607	Some other Backspace problems:
		608
		609	some editors use termcap/terminfo,
		610	some editors (vim I'm told) expect Backspace = ^H,
		611	GNU Emacs (and Emacs-like editors) use ^H for help.
		612
		613	Perhaps someday this will all be resolved in a consistent manner.
		614
		615	=head3 I don't like the key-bindings. How do I change them?
		616
		617	There are some compile-time selections available via configure. Unless
		618	you have run "configure" with the C<--disable-resources> option you can
		619	use the `keysym' resource to alter the keystrings associated with keysyms.
		620
		621	Here's an example for a URxvt session started using C<@@URXVT_NAME@@ -name URxvt>
		622
		623	URxvt.keysym.Home: \033[1~
		624	URxvt.keysym.End: \033[4~
		625	URxvt.keysym.C-apostrophe: \033<C-'>
		626	URxvt.keysym.C-slash: \033<C-/>
		627	URxvt.keysym.C-semicolon: \033<C-;>
		628	URxvt.keysym.C-grave: \033<C-`>
		629	URxvt.keysym.C-comma: \033<C-,>
		630	URxvt.keysym.C-period: \033<C-.>
		631	URxvt.keysym.C-0x60: \033<C-`>
		632	URxvt.keysym.C-Tab: \033<C-Tab>
		633	URxvt.keysym.C-Return: \033<C-Return>
		634	URxvt.keysym.S-Return: \033<S-Return>
		635	URxvt.keysym.S-space: \033<S-Space>
		636	URxvt.keysym.M-Up: \033<M-Up>
		637	URxvt.keysym.M-Down: \033<M-Down>
		638	URxvt.keysym.M-Left: \033<M-Left>
		639	URxvt.keysym.M-Right: \033<M-Right>
		640	URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
		641	URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
		642	URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
		643
		644	See some more examples in the documentation for the B<keysym> resource.
		645
		646	=head3 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
		647
		648	KP_Insert == Insert
		649	F22 == Print
		650	F27 == Home
		651	F29 == Prior
		652	F33 == End
		653	F35 == Next
		654
		655	Rather than have rxvt-unicode try to accommodate all the various possible
		656	keyboard mappings, it is better to use `xmodmap' to remap the keys as
		657	required for your particular machine.
		658
		659
		660
		661	=head2 Terminal Configuration
		662
		663	=head3 Can I see a typical configuration?
		664
		665	The default configuration tries to be xterm-like, which I don't like that
		666	much, but it's least surprise to regular users.
		667
		668	As a rxvt or rxvt-unicode user, you are practically supposed to invest
		669	time into customising your terminal. To get you started, here is the
		670	author's .Xdefaults entries, with comments on what they do. It's certainly
		671	not I<typical>, but what's typical...
		672
		673	URxvt.cutchars: "()*,<>[]{}|'
		674	URxvt.print-pipe: cat >/tmp/xxx
		675
		676	These are just for testing stuff.
		677
		678	URxvt.imLocale: ja_JP.UTF-8
		679	URxvt.preeditType: OnTheSpot,None
		680
		681	This tells rxvt-unicode to use a special locale when communicating with
		682	the X Input Method, and also tells it to only use the OnTheSpot pre-edit
		683	type, which requires the C<xim-onthespot> perl extension but rewards me
		684	with correct-looking fonts.
		685
		686	URxvt.perl-lib: /root/lib/urxvt
		687	URxvt.perl-ext-common: default,selection-autotransform,selection-pastebin,xim-onthespot,remote-clipboard
		688	URxvt.selection.pattern-0: ( at .*? line \\d+)
		689	URxvt.selection.pattern-1: ^(/[^:]+):\
		690	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/:e \\Q$1\\E\\x0d:$2\\x0d/
		691	URxvt.selection-autotransform.1: s/^ at (.*?) line (\\d+)$/:e \\Q$1\\E\\x0d:$2\\x0d/
		692
		693	This is my perl configuration. The first two set the perl library
		694	directory and also tells urxvt to use a large number of extensions. I
		695	develop for myself mostly, so I actually use most of the extensions I
		696	write.
		697
		698	The selection stuff mainly makes the selection perl-error-message aware
		699	and tells it to convert perl error messages into vi-commands to load the
		700	relevant file and go tot he error line number.
		701
		702	URxvt.scrollstyle: plain
		703	URxvt.secondaryScroll: true
		704
		705	As the documentation says: plain is the preferred scrollbar for the
		706	author. The C<secondaryScroll> configures urxvt to scroll in full-screen
		707	apps, like screen, so lines scrolled out of screen end up in urxvt's
		708	scrollback buffer.
		709
		710	URxvt.background: #000000
		711	URxvt.foreground: gray90
		712	URxvt.color7: gray90
		713	URxvt.colorBD: #ffffff
		714	URxvt.cursorColor: #e0e080
		715	URxvt.throughColor: #8080f0
		716	URxvt.highlightColor: #f0f0f0
		717
		718	Some colours. Not sure which ones are being used or even non-defaults, but
		719	these are in my .Xdefaults. Most notably, they set foreground/background
		720	to light gray/black, and also make sure that the colour 7 matches the
		721	default foreground colour.
		722
		723	URxvt.underlineColor: yellow
		724
		725	Another colour, makes underline lines look different. Sometimes hurts, but
		726	is mostly a nice effect.
		727
		728	URxvt.geometry: 154x36
		729	URxvt.loginShell: false
		730	URxvt.meta: ignore
		731	URxvt.utmpInhibit: true
		732
		733	Uh, well, should be mostly self-explanatory. By specifying some defaults
		734	manually, I can quickly switch them for testing.
		735
		736	URxvt.saveLines: 8192
		737
		738	A large scrollback buffer is essential. Really.
		739
		740	URxvt.mapAlert: true
		741
		742	The only case I use it is for my IRC window, which I like to keep
		743	iconified till people msg me (which beeps).
		744
		745	URxvt.visualBell: true
		746
		747	The audible bell is often annoying, especially when in a crowd.
		748
		749	URxvt.insecure: true
		750
		751	Please don't hack my mutt! Ooops...
		752
		753	URxvt.pastableTabs: false
		754
		755	I once thought this is a great idea.
		756
		757	urxvt.font: 9x15bold,\
		758	-misc-fixed-bold-r-normal--15-140-75-75-c-90-iso10646-1,\
		759	-misc-fixed-medium-r-normal--15-140-75-75-c-90-iso10646-1, \
		760	[codeset=JISX0208]xft:Kochi Gothic, \
		761	xft:Bitstream Vera Sans Mono:autohint=true, \
		762	xft:Code2000:antialias=false
		763	urxvt.boldFont: -xos4-terminus-bold-r-normal--14-140-72-72-c-80-iso8859-15
		764	urxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
		765	urxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
		766
		767	I wrote rxvt-unicode to be able to specify fonts exactly. So don't be
		768	overwhelmed. A special note: the C<9x15bold> mentioned above is actually
		769	the version from XFree-3.3, as XFree-4 replaced it by a totally different
		770	font (different glyphs for C<;> and many other harmless characters),
		771	while the second font is actually the C<9x15bold> from XFree4/XOrg. The
		772	bold version has less chars than the medium version, so I use it for rare
		773	characters, too. When editing sources with vim, I use italic for comments
		774	and other stuff, which looks quite good with Bitstream Vera anti-aliased.
		775
		776	Terminus is a quite bad font (many very wrong glyphs), but for most of my
		777	purposes, it works, and gives a different look, as my normal (Non-bold)
		778	font is already bold, and I want to see a difference between bold and
		779	normal fonts.
		780
		781	Please note that I used the C<urxvt> instance name and not the C<URxvt>
		782	class name. Thats because I use different configs for different purposes,
		783	for example, my IRC window is started with C<-name IRC>, and uses these
		784	defaults:
		785
		786	IRC*title: IRC
		787	IRC*geometry: 87x12+535+542
		788	IRC*saveLines: 0
		789	IRC*mapAlert: true
		790	IRC*font: suxuseuro
		791	IRC*boldFont: suxuseuro
		792	IRC*colorBD: white
		793	IRC*keysym.M-C-1: command:\033]710;suxuseuro\007\033]711;suxuseuro\007
		794	IRC*keysym.M-C-2: command:\033]710;9x15bold\007\033]711;9x15bold\007
		795
		796	C<Alt-Shift-1> and C<Alt-Shift-2> switch between two different font
		797	sizes. C<suxuseuro> allows me to keep an eye (and actually read)
		798	stuff while keeping a very small window. If somebody pastes something
		799	complicated (e.g. japanese), I temporarily switch to a larger font.
		800
		801	The above is all in my C<.Xdefaults> (I don't use C<.Xresources> nor
		802	C<xrdb>). I also have some resources in a separate C<.Xdefaults-hostname>
		803	file for different hosts, for example, on ym main desktop, I use:
		804
		805	URxvt.keysym.C-M-q: command:\033[3;5;5t
		806	URxvt.keysym.C-M-y: command:\033[3;5;606t
		807	URxvt.keysym.C-M-e: command:\033[3;1605;5t
		808	URxvt.keysym.C-M-c: command:\033[3;1605;606t
		809	URxvt.keysym.C-M-p: perl:test
		810
		811	The first for keysym definitions allow me to quickly bring some windows
		812	in the layout I like most. Ion users might start laughing but will stop
		813	immediately when I tell them that I use my own Fvwm2 module for much the
		814	same effect as Ion provides, and I only very rarely use the above key
		815	combinations :->
		816
		817	=head3 Why doesn't rxvt-unicode read my resources?
		818
		819	Well, why, indeed? It does, in a way very similar to other X
		820	applications. Most importantly, this means that if you or your OS loads
		821	resources into the X display (the right way to do it), rxvt-unicode will
		822	ignore any resource files in your home directory. It will only read
		823	F<$HOME/.Xdefaults> when no resources are attached to the display.
		824
		825	If you have or use an F<$HOME/.Xresources> file, chances are that
		826	resources are loaded into your X-server. In this case, you have to
		827	re-login after every change (or run F<xrdb -merge $HOME/.Xresources>).
		828
		829	Also consider the form resources have to use:
		830
		831	URxvt.resource: value
		832
		833	If you want to use another form (there are lots of different ways of
		834	specifying resources), make sure you understand whether and why it
		835	works. If unsure, use the form above.
		836
300	=head2 When I log-in to another system it tells me about missing terminfo data?	837	=head3 When I log-in to another system it tells me about missing terminfo data?
301		838
302	The terminal description used by rxvt-unicode is not as widely available	839	The terminal description used by rxvt-unicode is not as widely available
303	as that for xterm, or even rxvt (for which the same problem often arises).	840	as that for xterm, or even rxvt (for which the same problem often arises).
304		841
305	The correct solution for this problem is to install the terminfo, this can	842	The correct solution for this problem is to install the terminfo, this can
306	be done like this (with ncurses' infocmp):	843	be done like this (with ncurses' infocmp and works as user and admin):
307		844
308	REMOTE=remotesystem.domain	845	REMOTE=remotesystem.domain
309	infocmp rxvt-unicode | ssh $REMOTE "cat >/tmp/ti && tic /tmp/ti"	846	infocmp rxvt-unicode | ssh $REMOTE "mkdir -p .terminfo && cat >/tmp/ti && tic /tmp/ti"
310		847
311	... or by installing rxvt-unicode normally on the remote system,	848	... or by installing rxvt-unicode normally on the remote system,
		849
		850	One some systems you might need to set C<$TERMINFO> to the full path of
		851	F<$HOME/.terminfo> for this to work.
312		852
313	If you cannot or do not want to do this, then you can simply set	853	If you cannot or do not want to do this, then you can simply set
314	C<TERM=rxvt> or even C<TERM=xterm>, and live with the small number of	854	C<TERM=rxvt> or even C<TERM=xterm>, and live with the small number of
315	problems arising, which includes wrong keymapping, less and different	855	problems arising, which includes wrong keymapping, less and different
316	colours and some refresh errors in fullscreen applications. It's a nice	856	colours and some refresh errors in fullscreen applications. It's a nice
…		…
321	resource to set it:	861	resource to set it:
322		862
323	URxvt.termName: rxvt	863	URxvt.termName: rxvt
324		864
325	If you don't plan to use B<rxvt> (quite common...) you could also replace	865	If you don't plan to use B<rxvt> (quite common...) you could also replace
326	the rxvt terminfo file with the rxvt-unicode one.	866	the rxvt terminfo file with the rxvt-unicode one and use C<TERM=rxvt>.
327		867
328	=head2 C<tic> outputs some error when compiling the terminfo entry.	868	=head3 C<tic> outputs some error when compiling the terminfo entry.
329		869
330	Most likely it's the empty definition for C<enacs=>. Just replace it by	870	Most likely it's the empty definition for C<enacs=>. Just replace it by
331	C<enacs=\E[0@> and try again.	871	C<enacs=\E[0@> and try again.
332		872
333	=head2 C<bash>'s readline does not work correctly under @@RXVT_NAME@@.	873	=head3 C<bash>'s readline does not work correctly under @@URXVT_NAME@@.
334		874
335	See next entry.	875	See next entry.
336		876
337	=head2 I need a termcap file entry.	877	=head3 I need a termcap file entry.
338		878
339	One reason you might want this is that some distributions or operating	879	One reason you might want this is that some distributions or operating
340	systems still compile some programs using the long-obsoleted termcap	880	systems still compile some programs using the long-obsoleted termcap
341	library (Fedora Core's bash is one example) and rely on a termcap entry	881	library (Fedora Core's bash is one example) and rely on a termcap entry
342	for C<rxvt-unicode>.	882	for C<rxvt-unicode>.
343		883
344	You could use rxvt's termcap entry with resonable results in many cases.	884	You could use rxvt's termcap entry with reasonable results in many cases.
345	You can also create a termcap entry by using terminfo's infocmp program	885	You can also create a termcap entry by using terminfo's infocmp program
346	like this:	886	like this:
347		887
348	infocmp -C rxvt-unicode	888	infocmp -C rxvt-unicode
349		889
…		…
368	:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\	908	:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
369	:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\	909	:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\
370	:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\	910	:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\
371	:vs=\E[?25h:	911	:vs=\E[?25h:
372		912
373	=head2 Why does C<ls> no longer have coloured output?	913	=head3 Why does C<ls> no longer have coloured output?
374		914
375	The C<ls> in the GNU coreutils unfortunately doesn't use terminfo to	915	The C<ls> in the GNU coreutils unfortunately doesn't use terminfo to
376	decide wether a terminal has colour, but uses it's own configuration	916	decide whether a terminal has colour, but uses its own configuration
377	file. Needless to say, C<rxvt-unicode> is not in it's default file (among	917	file. Needless to say, C<rxvt-unicode> is not in its default file (among
378	with most other terminals supporting colour). Either add:	918	with most other terminals supporting colour). Either add:
379		919
380	TERM rxvt-unicode	920	TERM rxvt-unicode
381		921
382	to C</etc/DIR_COLORS> or simply add:	922	to C</etc/DIR_COLORS> or simply add:
383		923
384	alias ls='ls --color=auto'	924	alias ls='ls --color=auto'
385		925
386	to your C<.profile> or C<.bashrc>.	926	to your C<.profile> or C<.bashrc>.
387		927
388	=head2 Why doesn't vim/emacs etc. use the 88 colour mode?	928	=head3 Why doesn't vim/emacs etc. use the 88 colour mode?
389		929
390	See next entry.	930	See next entry.
391		931
392	=head2 Why doesn't vim/emacs etc. make use of italic?	932	=head3 Why doesn't vim/emacs etc. make use of italic?
393		933
394	See next entry.	934	See next entry.
395		935
396	=head2 Why are the secondary screen-related options not working properly?	936	=head3 Why are the secondary screen-related options not working properly?
397		937
398	Make sure you are using C<TERM=rxvt-unicode>. Some pre-packaged	938	Make sure you are using C<TERM=rxvt-unicode>. Some pre-packaged
399	distributions (most notably Debian GNU/Linux) break rxvt-unicode	939	distributions (most notably Debian GNU/Linux) break rxvt-unicode
400	by setting C<TERM> to C<rxvt>, which doesn't have these extra	940	by setting C<TERM> to C<rxvt>, which doesn't have these extra
401	features. Unfortunately, some of these (most notably, again, Debian	941	features. Unfortunately, some of these (most notably, again, Debian
402	GNU/Linux) furthermore fail to even install the C<rxvt-unicode> terminfo	942	GNU/Linux) furthermore fail to even install the C<rxvt-unicode> terminfo
403	file, so you will need to install it on your own (See the question B<When	943	file, so you will need to install it on your own (See the question B<When
404	I log-in to another system it tells me about missing terminfo data?> on	944	I log-in to another system it tells me about missing terminfo data?> on
405	how to do this).	945	how to do this).
406		946
407	=head2 My numerical keypad acts weird and generates differing output?
408		947
409	Some Debian GNUL/Linux users seem to have this problem, although no	948	=head2 Encoding / Locale / Input Method Issues
410	specific details were reported so far. It is possible that this is caused
411	by the wrong C<TERM> setting, although the details of wether and how
412	this can happen are unknown, as C<TERM=rxvt> should offer a compatible
413	keymap. See the answer to the previous question, and please report if that
414	helped.
415		949
416	=head2 Rxvt-unicode does not seem to understand the selected encoding?	950	=head3 Rxvt-unicode does not seem to understand the selected encoding?
417		951
418	See next entry.	952	See next entry.
419		953
420	=head2 Unicode does not seem to work?	954	=head3 Unicode does not seem to work?
421		955
422	If you encounter strange problems like typing an accented character but	956	If you encounter strange problems like typing an accented character but
423	getting two unrelated other characters or similar, or if program output is	957	getting two unrelated other characters or similar, or if program output is
424	subtly garbled, then you should check your locale settings.	958	subtly garbled, then you should check your locale settings.
425		959
…		…
429	something else, e.g. C<en_GB.UTF-8>. Needless to say, this is not going to work.	963	something else, e.g. C<en_GB.UTF-8>. Needless to say, this is not going to work.
430		964
431	The best thing is to fix your startup environment, as you will likely run	965	The best thing is to fix your startup environment, as you will likely run
432	into other problems. If nothing works you can try this in your .profile.	966	into other problems. If nothing works you can try this in your .profile.
433		967
434	printf '\e]701;%s\007' "$LC_CTYPE"	968	printf '\33]701;%s\007' "$LC_CTYPE"
435		969
436	If this doesn't work, then maybe you use a C<LC_CTYPE> specification not	970	If this doesn't work, then maybe you use a C<LC_CTYPE> specification not
437	supported on your systems. Some systems have a C<locale> command which	971	supported on your systems. Some systems have a C<locale> command which
438	displays this (also, C<perl -e0> can be used to check locale settings, as	972	displays this (also, C<perl -e0> can be used to check locale settings, as
439	it will complain loudly if it cannot set the locale). If it displays something	973	it will complain loudly if it cannot set the locale). If it displays something
…		…
445		979
446	If nothing works and you are sure that everything is set correctly then	980	If nothing works and you are sure that everything is set correctly then
447	you will need to remember a little known fact: Some programs just don't	981	you will need to remember a little known fact: Some programs just don't
448	support locales :(	982	support locales :(
449		983
450	=head2 Why do some characters look so much different than others?	984	=head3 How does rxvt-unicode determine the encoding to use?
451		985
452	See next entry.	986	See next entry.
453		987
454	=head2 How does rxvt-unicode choose fonts?	988	=head3 Is there an option to switch encodings?
455		989
456	Most fonts do not contain the full range of Unicode, which is	990	Unlike some other terminals, rxvt-unicode has no encoding switch, and no
457	fine. Chances are that the font you (or the admin/package maintainer of	991	specific "utf-8" mode, such as xterm. In fact, it doesn't even know about
458	your system/os) have specified does not cover all the characters you want	992	UTF-8 or any other encodings with respect to terminal I/O.
459	to display.
460		993
461	B<rxvt-unicode> makes a best-effort try at finding a replacement	994	The reasons is that there exists a perfectly fine mechanism for selecting
462	font. Often the result is fine, but sometimes the chosen font looks	995	the encoding, doing I/O and (most important) communicating this to all
463	bad/ugly/wrong. Some fonts have totally strange characters that don't	996	applications so everybody agrees on character properties such as width
464	resemble the correct glyph at all, and rxvt-unicode lacks the artificial	997	and code number. This mechanism is the I<locale>. Applications not using
465	intelligence to detect that a specific glyph is wrong: it has to believe	998	that info will have problems (for example, C<xterm> gets the width of
466	the font that the characters it claims to contain indeed look correct.	999	characters wrong as it uses its own, locale-independent table under all
467
468	In that case, select a font of your taste and add it to the font list,
469	e.g.:
470
471	@@RXVT_NAME@@ -fn basefont,font2,font3...
472
473	When rxvt-unicode sees a character, it will first look at the base
474	font. If the base font does not contain the character, it will go to the
475	next font, and so on. Specifying your own fonts will also speed up this
476	search and use less resources within rxvt-unicode and the X-server.
477
478	The only limitation is that none of the fonts may be larger than the base
479	font, as the base font defines the terminal character cell size, which
480	must be the same due to the way terminals work.
481
482	=head2 Why do some chinese characters look so different than others?
483
484	This is because there is a difference between script and language --
485	rxvt-unicode does not know which language the text that is output is,
486	as it only knows the unicode character codes. If rxvt-unicode first
487	sees a japanese/chinese character, it might choose a japanese font for
488	display. Subsequent japanese characters will use that font. Now, many
489	chinese characters aren't represented in japanese fonts, so when the first
490	non-japanese character comes up, rxvt-unicode will look for a chinese font
491	-- unfortunately at this point, it will still use the japanese font for
492	chinese characters that are also in the japanese font.
493
494	The workaround is easy: just tag a chinese font at the end of your font
495	list (see the previous question). The key is to view the font list as
496	a preference list: If you expect more japanese, list a japanese font
497	first. If you expect more chinese, put a chinese font first.
498
499	In the future it might be possible to switch language preferences at
500	runtime (the internal data structure has no problem with using different
501	fonts for the same character at the same time, but no interface for this
502	has been designed yet).
503
504	Until then, you might get away with switching fonts at runtime (see L<Can
505	I switch the fonts at runtime?> later in this document).
506
507	=head2 Why does rxvt-unicode sometimes leave pixel droppings?
508
509	Most fonts were not designed for terminal use, which means that character
510	size varies a lot. A font that is otherwise fine for terminal use might
511	contain some characters that are simply too wide. Rxvt-unicode will avoid
512	these characters. For characters that are just "a bit" too wide a special
513	"careful" rendering mode is used that redraws adjacent characters.
514
515	All of this requires that fonts do not lie about character sizes,
516	however: Xft fonts often draw glyphs larger than their acclaimed bounding
517	box, and rxvt-unicode has no way of detecting this (the correct way is to
518	ask for the character bounding box, which unfortunately is wrong in these
519	cases).	1000	locales).
520		1001
521	It's not clear (to me at least), wether this is a bug in Xft, freetype,	1002	Rxvt-unicode uses the C<LC_CTYPE> locale category to select encoding. All
522	or the respective font. If you encounter this problem you might try using	1003	programs doing the same (that is, most) will automatically agree in the
523	the C<-lsp> option to give the font more height. If that doesn't work, you	1004	interpretation of characters.
524	might be forced to use a different font.
525		1005
526	All of this is not a problem when using X11 core fonts, as their bounding	1006	Unfortunately, there is no system-independent way to select locales, nor
527	box data is correct.	1007	is there a standard on how locale specifiers will look like.
528		1008
		1009	On most systems, the content of the C<LC_CTYPE> environment variable
		1010	contains an arbitrary string which corresponds to an already-installed
		1011	locale. Common names for locales are C<en_US.UTF-8>, C<de_DE.ISO-8859-15>,
		1012	C<ja_JP.EUC-JP>, i.e. C<language_country.encoding>, but other forms
		1013	(i.e. C<de> or C<german>) are also common.
		1014
		1015	Rxvt-unicode ignores all other locale categories, and except for
		1016	the encoding, ignores country or language-specific settings,
		1017	i.e. C<de_DE.UTF-8> and C<ja_JP.UTF-8> are the normally same to
		1018	rxvt-unicode.
		1019
		1020	If you want to use a specific encoding you have to make sure you start
		1021	rxvt-unicode with the correct C<LC_CTYPE> category.
		1022
		1023	=head3 Can I switch locales at runtime?
		1024
		1025	Yes, using an escape sequence. Try something like this, which sets
		1026	rxvt-unicode's idea of C<LC_CTYPE>.
		1027
		1028	printf '\33]701;%s\007' ja_JP.SJIS
		1029
		1030	See also the previous answer.
		1031
		1032	Sometimes this capability is rather handy when you want to work in
		1033	one locale (e.g. C<de_DE.UTF-8>) but some programs don't support it
		1034	(e.g. UTF-8). For example, I use this script to start C<xjdic>, which
		1035	first switches to a locale supported by xjdic and back later:
		1036
		1037	printf '\33]701;%s\007' ja_JP.SJIS
		1038	xjdic -js
		1039	printf '\33]701;%s\007' de_DE.UTF-8
		1040
		1041	You can also use xterm's C<luit> program, which usually works fine, except
		1042	for some locales where character width differs between program- and
		1043	rxvt-unicode-locales.
		1044
		1045	=head3 I have problems getting my input method working.
		1046
		1047	Try a search engine, as this is slightly different for every input method server.
		1048
		1049	Here is a checklist:
		1050
		1051	=over 4
		1052
		1053	=item - Make sure your locale I<and> the imLocale are supported on your OS.
		1054
		1055	Try C<locale -a> or check the documentation for your OS.
		1056
		1057	=item - Make sure your locale or imLocale matches a locale supported by your XIM.
		1058
		1059	For example, B<kinput2> does not support UTF-8 locales, you should use
		1060	C<ja_JP.EUC-JP> or equivalent.
		1061
		1062	=item - Make sure your XIM server is actually running.
		1063
		1064	=item - Make sure the C<XMODIFIERS> environment variable is set correctly when I<starting> rxvt-unicode.
		1065
		1066	When you want to use e.g. B<kinput2>, it must be set to
		1067	C<@im=kinput2>. For B<scim>, use C<@im=SCIM>. You can see what input
		1068	method servers are running with this command:
		1069
		1070	xprop -root XIM_SERVERS
		1071
		1072	=item
		1073
		1074	=back
		1075
		1076	=head3 My input method wants <some encoding> but I want UTF-8, what can I do?
		1077
		1078	You can specify separate locales for the input method and the rest of the
		1079	terminal, using the resource C<imlocale>:
		1080
		1081	URxvt.imlocale: ja_JP.EUC-JP
		1082
		1083	Now you can start your terminal with C<LC_CTYPE=ja_JP.UTF-8> and still
		1084	use your input method. Please note, however, that, depending on your Xlib
		1085	version, you may not be able to input characters outside C<EUC-JP> in a
		1086	normal way then, as your input method limits you.
		1087
		1088	=head3 Rxvt-unicode crashes when the X Input Method changes or exits.
		1089
		1090	Unfortunately, this is unavoidable, as the XIM protocol is racy by
		1091	design. Applications can avoid some crashes at the expense of memory
		1092	leaks, and Input Methods can avoid some crashes by careful ordering at
		1093	exit time. B<kinput2> (and derived input methods) generally succeeds,
		1094	while B<SCIM> (or similar input methods) fails. In the end, however,
		1095	crashes cannot be completely avoided even if both sides cooperate.
		1096
		1097	So the only workaround is not to kill your Input Method Servers.
		1098
		1099
		1100	=head2 Operating Systems / Package Maintaining
		1101
		1102	=head3 I am using Debian GNU/Linux and have a problem...
		1103
		1104	The Debian GNU/Linux package of rxvt-unicode in sarge contains large
		1105	patches that considerably change the behaviour of rxvt-unicode (but
		1106	unfortunately this notice has been removed). Before reporting a bug to
		1107	the original rxvt-unicode author please download and install the genuine
		1108	version (L<http://software.schmorp.de#rxvt-unicode>) and try to reproduce
		1109	the problem. If you cannot, chances are that the problems are specific to
		1110	Debian GNU/Linux, in which case it should be reported via the Debian Bug
		1111	Tracking System (use C<reportbug> to report the bug).
		1112
		1113	For other problems that also affect the Debian package, you can and
		1114	probably should use the Debian BTS, too, because, after all, it's also a
		1115	bug in the Debian version and it serves as a reminder for other users that
		1116	might encounter the same issue.
		1117
		1118	=head3 I am maintaining rxvt-unicode for distribution/OS XXX, any recommendation?
		1119
		1120	You should build one binary with the default options. F<configure>
		1121	now enables most useful options, and the trend goes to making them
		1122	runtime-switchable, too, so there is usually no drawback to enabling them,
		1123	except higher disk and possibly memory usage. The perl interpreter should
		1124	be enabled, as important functionality (menus, selection, likely more in
		1125	the future) depends on it.
		1126
		1127	You should not overwrite the C<perl-ext-common> snd C<perl-ext> resources
		1128	system-wide (except maybe with C<defaults>). This will result in useful
		1129	behaviour. If your distribution aims at low memory, add an empty
		1130	C<perl-ext-common> resource to the app-defaults file. This will keep the
		1131	perl interpreter disabled until the user enables it.
		1132
		1133	If you can/want build more binaries, I recommend building a minimal
		1134	one with C<--disable-everything> (very useful) and a maximal one with
		1135	C<--enable-everything> (less useful, it will be very big due to a lot of
		1136	encodings built-in that increase download times and are rarely used).
		1137
		1138	=head3 I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe?
		1139
		1140	It should be, starting with release 7.1. You are encouraged to properly
		1141	install urxvt with privileges necessary for your OS now.
		1142
		1143	When rxvt-unicode detects that it runs setuid or setgid, it will fork
		1144	into a helper process for privileged operations (pty handling on some
		1145	systems, utmp/wtmp/lastlog handling on others) and drop privileges
		1146	immediately. This is much safer than most other terminals that keep
		1147	privileges while running (but is more relevant to urxvt, as it contains
		1148	things as perl interpreters, which might be "helpful" to attackers).
		1149
		1150	This forking is done as the very first within main(), which is very early
		1151	and reduces possible bugs to initialisation code run before main(), or
		1152	things like the dynamic loader of your system, which should result in very
		1153	little risk.
		1154
529	=head2 On Solaris 9, many line-drawing characters are too wide.	1155	=head3 On Solaris 9, many line-drawing characters are too wide.
530		1156
531	Seems to be a known bug, read	1157	Seems to be a known bug, read
532	L<http://nixdoc.net/files/forum/about34198.html>. Some people use the	1158	L<http://nixdoc.net/files/forum/about34198.html>. Some people use the
533	following ugly workaround to get non-double-wide-characters working:	1159	following ugly workaround to get non-double-wide-characters working:
534		1160
535	#define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)	1161	#define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)
536		1162
537	=head2 My Compose (Multi_key) key is no longer working.
538
539	The most common causes for this are that either your locale is not set
540	correctly, or you specified a B<preeditStyle> that is not supported by
541	your input method. For example, if you specified B<OverTheSpot> and
542	your input method (e.g. the default input method handling Compose keys)
543	does not support this (for instance because it is not visual), then
544	rxvt-unicode will continue without an input method.
545
546	In this case either do not specify a B<preeditStyle> or specify more than
547	one pre-edit style, such as B<OverTheSpot,Root,None>.
548
549	=head2 I cannot type C<Ctrl-Shift-2> to get an ASCII NUL character due to ISO 14755
550
551	Either try C<Ctrl-2> alone (it often is mapped to ASCII NUL even on
552	international keyboards) or simply use ISO 14755 support to your
553	advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for other
554	codes, too, such as C<Ctrl-Shift-1-d> to type the default telnet escape
555	character and so on.
556
557	=head2 How can I keep rxvt-unicode from using reverse video so much?
558
559	First of all, make sure you are running with the right terminal settings
560	(C<TERM=rxvt-unicode>), which will get rid of most of these effects. Then
561	make sure you have specified colours for italic and bold, as otherwise
562	rxvt-unicode might use reverse video to simulate the effect:
563
564	URxvt.colorBD: white
565	URxvt.colorIT: green
566
567	=head2 Some programs assume totally weird colours (red instead of blue), how can I fix that?
568
569	For some unexplainable reason, some rare programs assume a very weird
570	colour palette when confronted with a terminal with more than the standard
571	8 colours (rxvt-unicode supports 88). The right fix is, of course, to fix
572	these programs not to assume non-ISO colours without very good reasons.
573
574	In the meantime, you can either edit your C<rxvt-unicode> terminfo
575	definition to only claim 8 colour support or use C<TERM=rxvt>, which will
576	fix colours but keep you from using other rxvt-unicode features.
577
578	=head2 I am on FreeBSD and rxvt-unicode does not seem to work at all.	1163	=head3 I am on FreeBSD and rxvt-unicode does not seem to work at all.
579		1164
580	Rxvt-unicode requires the symbol C<__STDC_ISO_10646__> to be defined	1165	Rxvt-unicode requires the symbol C<__STDC_ISO_10646__> to be defined
581	in your compile environment, or an implementation that implements it,	1166	in your compile environment, or an implementation that implements it,
582	wether it defines the symbol or not. C<__STDC_ISO_10646__> requires that	1167	whether it defines the symbol or not. C<__STDC_ISO_10646__> requires that
583	B<wchar_t> is represented as unicode.	1168	B<wchar_t> is represented as unicode.
584		1169
585	As you might have guessed, FreeBSD does neither define this symobl nor	1170	As you might have guessed, FreeBSD does neither define this symbol nor
586	does it support it. Instead, it uses it's own internal representation of	1171	does it support it. Instead, it uses its own internal representation of
587	B<wchar_t>. This is, of course, completely fine with respect to standards.	1172	B<wchar_t>. This is, of course, completely fine with respect to standards.
588		1173
589	However, that means rxvt-unicode only works in C<POSIX>, C<ISO-8859-1> and	1174	However, that means rxvt-unicode only works in C<POSIX>, C<ISO-8859-1> and
590	C<UTF-8> locales under FreeBSD (which all use Unicode as B<wchar_t>.	1175	C<UTF-8> locales under FreeBSD (which all use Unicode as B<wchar_t>.
591		1176
…		…
605		1190
606	The rxvt-unicode author insists that the right way to fix this is in the	1191	The rxvt-unicode author insists that the right way to fix this is in the
607	system libraries once and for all, instead of forcing every app to carry	1192	system libraries once and for all, instead of forcing every app to carry
608	complete replacements for them :)	1193	complete replacements for them :)
609		1194
610	=head2 I use Solaris 9 and it doesn't compile/work/etc.	1195	=head3 I use Solaris 9 and it doesn't compile/work/etc.
611		1196
612	Try the diff in F<doc/solaris9.patch> as a base. It fixes the worst	1197	Try the diff in F<doc/solaris9.patch> as a base. It fixes the worst
613	problems with C<wcwidth> and a compile problem.	1198	problems with C<wcwidth> and a compile problem.
614		1199
615	=head2 How can I use rxvt-unicode under cygwin?	1200	=head3 How can I use rxvt-unicode under cygwin?
616		1201
617	rxvt-unicode should compile and run out of the box on cygwin, using	1202	rxvt-unicode should compile and run out of the box on cygwin, using
618	the X11 libraries that come with cygwin. libW11 emulation is no	1203	the X11 libraries that come with cygwin. libW11 emulation is no
619	longer supported (and makes no sense, either, as it only supported a	1204	longer supported (and makes no sense, either, as it only supported a
620	single font). I recommend starting the X-server in C<-multiwindow> or	1205	single font). I recommend starting the X-server in C<-multiwindow> or
…		…
623		1208
624	At the time of this writing, cygwin didn't seem to support any multi-byte	1209	At the time of this writing, cygwin didn't seem to support any multi-byte
625	encodings (you might try C<LC_CTYPE=C-UTF-8>), so you are likely limited	1210	encodings (you might try C<LC_CTYPE=C-UTF-8>), so you are likely limited
626	to 8-bit encodings.	1211	to 8-bit encodings.
627		1212
628	=head2 How does rxvt-unicode determine the encoding to use?
629
630	See next entry.
631
632	=head2 Is there an option to switch encodings?
633
634	Unlike some other terminals, rxvt-unicode has no encoding switch, and no
635	specific "utf-8" mode, such as xterm. In fact, it doesn't even know about
636	UTF-8 or any other encodings with respect to terminal I/O.
637
638	The reasons is that there exists a perfectly fine mechanism for selecting
639	the encoding, doing I/O and (most important) communicating this to all
640	applications so everybody agrees on character properties such as width
641	and code number. This mechanism is the I<locale>. Applications not using
642	that info will have problems (for example, C<xterm> gets the width of
643	characters wrong as it uses it's own, locale-independent table under all
644	locales).
645
646	Rxvt-unicode uses the C<LC_CTYPE> locale category to select encoding. All
647	programs doing the same (that is, most) will automatically agree in the
648	interpretation of characters.
649
650	Unfortunately, there is no system-independent way to select locales, nor
651	is there a standard on how locale specifiers will look like.
652
653	On most systems, the content of the C<LC_CTYPE> environment variable
654	contains an arbitrary string which corresponds to an already-installed
655	locale. Common names for locales are C<en_US.UTF-8>, C<de_DE.ISO-8859-15>,
656	C<ja_JP.EUC-JP>, i.e. C<language_country.encoding>, but other forms
657	(i.e. C<de> or C<german>) are also common.
658
659	Rxvt-unicode ignores all other locale categories, and except for
660	the encoding, ignores country or language-specific settings,
661	i.e. C<de_DE.UTF-8> and C<ja_JP.UTF-8> are the normally same to
662	rxvt-unicode.
663
664	If you want to use a specific encoding you have to make sure you start
665	rxvt-unicode with the correct C<LC_CTYPE> category.
666
667	=head2 Can I switch locales at runtime?
668
669	Yes, using an escape sequence. Try something like this, which sets
670	rxvt-unicode's idea of C<LC_CTYPE>.
671
672	printf '\e]701;%s\007' ja_JP.SJIS
673
674	See also the previous answer.
675
676	Sometimes this capability is rather handy when you want to work in
677	one locale (e.g. C<de_DE.UTF-8>) but some programs don't support it
678	(e.g. UTF-8). For example, I use this script to start C<xjdic>, which
679	first switches to a locale supported by xjdic and back later:
680
681	printf '\e]701;%s\007' ja_JP.SJIS
682	xjdic -js
683	printf '\e]701;%s\007' de_DE.UTF-8
684
685	You can also use xterm's C<luit> program, which usually works fine, except
686	for some locales where character width differs between program- and
687	rxvt-unicode-locales.
688
689	=head2 Can I switch the fonts at runtime?
690
691	Yes, using an escape sequence. Try something like this, which has the same
692	effect as using the C<-fn> switch, and takes effect immediately:
693
694	printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic"
695
696	This is useful if you e.g. work primarily with japanese (and prefer a
697	japanese font), but you have to switch to chinese temporarily, where
698	japanese fonts would only be in your way.
699
700	You can think of this as a kind of manual ISO-2022 switching.
701
702	=head2 Why do italic characters look as if clipped?
703
704	Many fonts have difficulties with italic characters and hinting. For
705	example, the otherwise very nicely hinted font C<xft:Bitstream Vera Sans
706	Mono> completely fails in it's italic face. A workaround might be to
707	enable freetype autohinting, i.e. like this:
708
709	URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
710	URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
711
712	=head2 My input method wants <some encoding> but I want UTF-8, what can I do?
713
714	You can specify separate locales for the input method and the rest of the
715	terminal, using the resource C<imlocale>:
716
717	URxvt.imlocale: ja_JP.EUC-JP
718
719	Now you can start your terminal with C<LC_CTYPE=ja_JP.UTF-8> and still
720	use your input method. Please note, however, that you will not be able to
721	input characters outside C<EUC-JP> in a normal way then, as your input
722	method limits you.
723
724	=head2 Rxvt-unicode crashes when the X Input Method changes or exits.
725
726	Unfortunately, this is unavoidable, as the XIM protocol is racy by
727	design. Applications can avoid some crashes at the expense of memory
728	leaks, and Input Methods can avoid some crashes by careful ordering at
729	exit time. B<kinput2> (and derived input methods) generally succeeds,
730	while B<SCIM> (or similar input methods) fails. In the end, however,
731	crashes cannot be completely avoided even if both sides cooperate.
732
733	So the only workaround is not to kill your Input Method Servers.
734
735	=head2 Rxvt-unicode uses gobs of memory, how can I reduce that?
736
737	Rxvt-unicode tries to obey the rule of not charging you for something you
738	don't use. One thing you should try is to configure out all settings that
739	you don't need, for example, Xft support is a resource hog by design,
740	when used. Compiling it out ensures that no Xft font will be loaded
741	accidentally when rxvt-unicode tries to find a font for your characters.
742
743	Also, many people (me included) like large windows and even larger
744	scrollback buffers: Without C<--enable-unicode3>, rxvt-unicode will use
745	6 bytes per screen cell. For a 160x?? window this amounts to almost a
746	kilobyte per line. A scrollback buffer of 10000 lines will then (if full)
747	use 10 Megabytes of memory. With C<--enable-unicode3> it gets worse, as
748	rxvt-unicode then uses 8 bytes per screen cell.
749
750	=head2 Can I speed up Xft rendering somehow?
751
752	Yes, the most obvious way to speed it up is to avoid Xft entirely, as
753	it is simply slow. If you still want Xft fonts you might try to disable
754	antialiasing (by appending C<:antialias=false>), which saves lots of
755	memory and also speeds up rendering considerably.
756
757	=head2 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
758
759	Rxvt-unicode will use whatever you specify as a font. If it needs to
760	fall back to it's default font search list it will prefer X11 core
761	fonts, because they are small and fast, and then use Xft fonts. It has
762	antialiasing disabled for most of them, because the author thinks they
763	look best that way.
764
765	If you want antialiasing, you have to specify the fonts manually.
766
767	=head2 Mouse cut/paste suddenly no longer works.
768
769	Make sure that mouse reporting is actually turned off since killing
770	some editors prematurely may leave the mouse in mouse report mode. I've
771	heard that tcsh may use mouse reporting unless it otherwise specified. A
772	quick check is to see if cut/paste works when the Alt or Shift keys are
773	depressed.
774
775	=head2 What's with this bold/blink stuff?
776
777	If no bold colour is set via C<colorBD:>, bold will invert text using the
778	standard foreground colour.
779
780	For the standard background colour, blinking will actually make the
781	text blink when compiled with C<--enable-blinking>. with standard
782	colours. Without C<--enable-blinking>, the blink attribute will be
783	ignored.
784
785	On ANSI colours, bold/blink attributes are used to set high-intensity
786	foreground/background colors.
787
788	color0-7 are the low-intensity colors.
789
790	color8-15 are the corresponding high-intensity colors.
791
792	=head2 I don't like the screen colors. How do I change them?
793
794	You can change the screen colors at run-time using F<~/.Xdefaults>
795	resources (or as long-options).
796
797	Here are values that are supposed to resemble a VGA screen,
798	including the murky brown that passes for low-intensity yellow:
799
800	URxvt.color0: #000000
801	URxvt.color1: #A80000
802	URxvt.color2: #00A800
803	URxvt.color3: #A8A800
804	URxvt.color4: #0000A8
805	URxvt.color5: #A800A8
806	URxvt.color6: #00A8A8
807	URxvt.color7: #A8A8A8
808
809	URxvt.color8: #000054
810	URxvt.color9: #FF0054
811	URxvt.color10: #00FF54
812	URxvt.color11: #FFFF54
813	URxvt.color12: #0000FF
814	URxvt.color13: #FF00FF
815	URxvt.color14: #00FFFF
816	URxvt.color15: #FFFFFF
817
818	And here is a more complete set of non-standard colors described (not by
819	me) as "pretty girly".
820
821	URxvt.cursorColor: #dc74d1
822	URxvt.pointerColor: #dc74d1
823	URxvt.background: #0e0e0e
824	URxvt.foreground: #4ad5e1
825	URxvt.color0: #000000
826	URxvt.color8: #8b8f93
827	URxvt.color1: #dc74d1
828	URxvt.color9: #dc74d1
829	URxvt.color2: #0eb8c7
830	URxvt.color10: #0eb8c7
831	URxvt.color3: #dfe37e
832	URxvt.color11: #dfe37e
833	URxvt.color5: #9e88f0
834	URxvt.color13: #9e88f0
835	URxvt.color6: #73f7ff
836	URxvt.color14: #73f7ff
837	URxvt.color7: #e1dddd
838	URxvt.color15: #e1dddd
839
840	=head2 How can I start @@RXVT_NAME@@d in a race-free way?
841
842	Try C<@@RXVT_NAME@@d -f -o>, which tells @@RXVT_NAME@@d to open the
843	display, create the listening socket and then fork.
844
845	=head2 What's with the strange Backspace/Delete key behaviour?
846
847	Assuming that the physical Backspace key corresponds to the
848	BackSpace keysym (not likely for Linux ... see the following
849	question) there are two standard values that can be used for
850	Backspace: C<^H> and C<^?>.
851
852	Historically, either value is correct, but rxvt-unicode adopts the debian
853	policy of using C<^?> when unsure, because it's the one only only correct
854	choice :).
855
856	Rxvt-unicode tries to inherit the current stty settings and uses the value
857	of `erase' to guess the value for backspace. If rxvt-unicode wasn't
858	started from a terminal (say, from a menu or by remote shell), then the
859	system value of `erase', which corresponds to CERASE in <termios.h>, will
860	be used (which may not be the same as your stty setting).
861
862	For starting a new rxvt-unicode:
863
864	# use Backspace = ^H
865	$ stty erase ^H
866	$ @@RXVT_NAME@@
867
868	# use Backspace = ^?
869	$ stty erase ^?
870	$ @@RXVT_NAME@@
871
872	Toggle with C<ESC [ 36 h> / C<ESC [ 36 l>.
873
874	For an existing rxvt-unicode:
875
876	# use Backspace = ^H
877	$ stty erase ^H
878	$ echo -n "^[[36h"
879
880	# use Backspace = ^?
881	$ stty erase ^?
882	$ echo -n "^[[36l"
883
884	This helps satisfy some of the Backspace discrepancies that occur, but
885	if you use Backspace = C<^H>, make sure that the termcap/terminfo value
886	properly reflects that.
887
888	The Delete key is a another casualty of the ill-defined Backspace problem.
889	To avoid confusion between the Backspace and Delete keys, the Delete
890	key has been assigned an escape sequence to match the vt100 for Execute
891	(C<ESC [ 3 ~>) and is in the supplied termcap/terminfo.
892
893	Some other Backspace problems:
894
895	some editors use termcap/terminfo,
896	some editors (vim I'm told) expect Backspace = ^H,
897	GNU Emacs (and Emacs-like editors) use ^H for help.
898
899	Perhaps someday this will all be resolved in a consistent manner.
900
901	=head2 I don't like the key-bindings. How do I change them?
902
903	There are some compile-time selections available via configure. Unless
904	you have run "configure" with the C<--disable-resources> option you can
905	use the `keysym' resource to alter the keystrings associated with keysyms.
906
907	Here's an example for a URxvt session started using C<@@RXVT_NAME@@ -name URxvt>
908
909	URxvt.keysym.Home: \033[1~
910	URxvt.keysym.End: \033[4~
911	URxvt.keysym.C-apostrophe: \033<C-'>
912	URxvt.keysym.C-slash: \033<C-/>
913	URxvt.keysym.C-semicolon: \033<C-;>
914	URxvt.keysym.C-grave: \033<C-`>
915	URxvt.keysym.C-comma: \033<C-,>
916	URxvt.keysym.C-period: \033<C-.>
917	URxvt.keysym.C-0x60: \033<C-`>
918	URxvt.keysym.C-Tab: \033<C-Tab>
919	URxvt.keysym.C-Return: \033<C-Return>
920	URxvt.keysym.S-Return: \033<S-Return>
921	URxvt.keysym.S-space: \033<S-Space>
922	URxvt.keysym.M-Up: \033<M-Up>
923	URxvt.keysym.M-Down: \033<M-Down>
924	URxvt.keysym.M-Left: \033<M-Left>
925	URxvt.keysym.M-Right: \033<M-Right>
926	URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
927	URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
928	URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
929
930	See some more examples in the documentation for the B<keysym> resource.
931
932	=head2 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 mappings that rxvt-unicode doesn't recognize.
933
934	KP_Insert == Insert
935	F22 == Print
936	F27 == Home
937	F29 == Prior
938	F33 == End
939	F35 == Next
940
941	Rather than have rxvt-unicode try to accommodate all the various possible
942	keyboard mappings, it is better to use `xmodmap' to remap the keys as
943	required for your particular machine.
944
945	=head2 How do I distinguish wether I'm running rxvt-unicode or a regular xterm? I need this to decide about setting colors etc.
946
947	rxvt and rxvt-unicode always export the variable "COLORTERM", so you can
948	check and see if that is set. Note that several programs, JED, slrn,
949	Midnight Commander automatically check this variable to decide whether or
950	not to use color.
951
952	=head2 How do I set the correct, full IP address for the DISPLAY variable?
953
954	If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled
955	insecure mode then it is possible to use the following shell script
956	snippets to correctly set the display. If your version of rxvt-unicode
957	wasn't also compiled with ESCZ_ANSWER (as assumed in these snippets) then
958	the COLORTERM variable can be used to distinguish rxvt-unicode from a
959	regular xterm.
960
961	Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script
962	snippets:
963
964	# Bourne/Korn/POSIX family of shells:
965	[ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
966	if [ ${TERM:-foo} = xterm ]; then
967	stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
968	echo -n '^[Z'
969	read term_id
970	stty icanon echo
971	if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
972	echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
973	read DISPLAY # set it in our local shell
974	fi
975	fi
976
977	=head2 How do I compile the manual pages for myself?
978
979	You need to have a recent version of perl installed as F</usr/bin/perl>,
980	one that comes with F<pod2man>, F<pod2text> and F<pod2html>. Then go to
981	the doc subdirectory and enter C<make alldoc>.
982
983	=head2 My question isn't answered here, can I ask a human?
984
985	Before sending me mail, you could go to IRC: C<irc.freenode.net>,
986	channel C<#rxvt-unicode> has some rxvt-unicode enthusiasts that might be
987	interested in learning about new and exciting problems (but not FAQs :).
988
989	=head1 RXVT TECHNICAL REFERENCE	1213	=head1 RXVT-UNICODE TECHNICAL REFERENCE
990
991	=head1 DESCRIPTION
992		1214
993	The rest of this document describes various technical aspects of	1215	The rest of this document describes various technical aspects of
994	B<rxvt-unicode>. First the description of supported command sequences,	1216	B<rxvt-unicode>. First the description of supported command sequences,
995	followed by pixmap support and last by a description of all features	1217	followed by pixmap support and last by a description of all features
996	selectable at C<configure> time.	1218	selectable at C<configure> time.
997		1219
998	=head1 Definitions	1220	=head2 Definitions
999		1221
1000	=over 4	1222	=over 4
1001		1223
1002	=item B<< C<c> >>	1224	=item B<< C<c> >>
1003		1225
…		…
1021		1243
1022	A text parameter composed of printable characters.	1244	A text parameter composed of printable characters.
1023		1245
1024	=back	1246	=back
1025		1247
1026	=head1 Values	1248	=head2 Values
1027		1249
1028	=over 4	1250	=over 4
1029		1251
1030	=item B<< C<ENQ> >>	1252	=item B<< C<ENQ> >>
1031		1253
…		…
1074		1296
1075	Space Character	1297	Space Character
1076		1298
1077	=back	1299	=back
1078		1300
1079	=head1 Escape Sequences	1301	=head2 Escape Sequences
1080		1302
1081	=over 4	1303	=over 4
1082		1304
1083	=item B<< C<ESC # 8> >>	1305	=item B<< C<ESC # 8> >>
1084		1306
…		…
1182		1404
1183	=back	1405	=back
1184		1406
1185	X<CSI>	1407	X<CSI>
1186		1408
1187	=head1 CSI (Command Sequence Introducer) Sequences	1409	=head2 CSI (Command Sequence Introducer) Sequences
1188		1410
1189	=over 4	1411	=over 4
1190		1412
1191	=item B<< C<ESC [ Ps @> >>	1413	=item B<< C<ESC [ Ps @> >>
1192		1414
…		…
1462		1684
1463	=back	1685	=back
1464		1686
1465	X<PrivateModes>	1687	X<PrivateModes>
1466		1688
1467	=head1 DEC Private Modes	1689	=head2 DEC Private Modes
1468		1690
1469	=over 4	1691	=over 4
1470		1692
1471	=item B<< C<ESC [ ? Pm h> >>	1693	=item B<< C<ESC [ ? Pm h> >>
1472		1694
…		…
1488		1710
1489	Toggle DEC Private Mode Values (rxvt extension). I<where>	1711	Toggle DEC Private Mode Values (rxvt extension). I<where>
1490		1712
1491	=over 4	1713	=over 4
1492		1714
1493	=item B<< C<Ps = 1> >> (DECCKM)	1715	=item B<< C<Pm = 1> >> (DECCKM)
1494		1716
1495	=begin table	1717	=begin table
1496		1718
1497	B<< C<h> >> Application Cursor Keys	1719	B<< C<h> >> Application Cursor Keys
1498	B<< C<l> >> Normal Cursor Keys	1720	B<< C<l> >> Normal Cursor Keys
1499		1721
1500	=end table	1722	=end table
1501		1723
1502	=item B<< C<Ps = 2> >> (ANSI/VT52 mode)	1724	=item B<< C<Pm = 2> >> (ANSI/VT52 mode)
1503		1725
1504	=begin table	1726	=begin table
1505		1727
1506	B<< C<h> >> Enter VT52 mode	1728	B<< C<h> >> Enter VT52 mode
1507	B<< C<l> >> Enter VT52 mode	1729	B<< C<l> >> Enter VT52 mode
1508		1730
1509	=end table	1731	=end table
1510		1732
1511	=item B<< C<Ps = 3> >>	1733	=item B<< C<Pm = 3> >>
1512		1734
1513	=begin table	1735	=begin table
1514		1736
1515	B<< C<h> >> 132 Column Mode (DECCOLM)	1737	B<< C<h> >> 132 Column Mode (DECCOLM)
1516	B<< C<l> >> 80 Column Mode (DECCOLM)	1738	B<< C<l> >> 80 Column Mode (DECCOLM)
1517		1739
1518	=end table	1740	=end table
1519		1741
1520	=item B<< C<Ps = 4> >>	1742	=item B<< C<Pm = 4> >>
1521		1743
1522	=begin table	1744	=begin table
1523		1745
1524	B<< C<h> >> Smooth (Slow) Scroll (DECSCLM)	1746	B<< C<h> >> Smooth (Slow) Scroll (DECSCLM)
1525	B<< C<l> >> Jump (Fast) Scroll (DECSCLM)	1747	B<< C<l> >> Jump (Fast) Scroll (DECSCLM)
1526		1748
1527	=end table	1749	=end table
1528		1750
1529	=item B<< C<Ps = 5> >>	1751	=item B<< C<Pm = 5> >>
1530		1752
1531	=begin table	1753	=begin table
1532		1754
1533	B<< C<h> >> Reverse Video (DECSCNM)	1755	B<< C<h> >> Reverse Video (DECSCNM)
1534	B<< C<l> >> Normal Video (DECSCNM)	1756	B<< C<l> >> Normal Video (DECSCNM)
1535		1757
1536	=end table	1758	=end table
1537		1759
1538	=item B<< C<Ps = 6> >>	1760	=item B<< C<Pm = 6> >>
1539		1761
1540	=begin table	1762	=begin table
1541		1763
1542	B<< C<h> >> Origin Mode (DECOM)	1764	B<< C<h> >> Origin Mode (DECOM)
1543	B<< C<l> >> Normal Cursor Mode (DECOM)	1765	B<< C<l> >> Normal Cursor Mode (DECOM)
1544		1766
1545	=end table	1767	=end table
1546		1768
1547	=item B<< C<Ps = 7> >>	1769	=item B<< C<Pm = 7> >>
1548		1770
1549	=begin table	1771	=begin table
1550		1772
1551	B<< C<h> >> Wraparound Mode (DECAWM)	1773	B<< C<h> >> Wraparound Mode (DECAWM)
1552	B<< C<l> >> No Wraparound Mode (DECAWM)	1774	B<< C<l> >> No Wraparound Mode (DECAWM)
1553		1775
1554	=end table	1776	=end table
1555		1777
1556	=item B<< C<Ps = 8> >> I<unimplemented>	1778	=item B<< C<Pm = 8> >> I<unimplemented>
1557		1779
1558	=begin table	1780	=begin table
1559		1781
1560	B<< C<h> >> Auto-repeat Keys (DECARM)	1782	B<< C<h> >> Auto-repeat Keys (DECARM)
1561	B<< C<l> >> No Auto-repeat Keys (DECARM)	1783	B<< C<l> >> No Auto-repeat Keys (DECARM)
1562		1784
1563	=end table	1785	=end table
1564		1786
1565	=item B<< C<Ps = 9> >> X10 XTerm	1787	=item B<< C<Pm = 9> >> X10 XTerm
1566		1788
1567	=begin table	1789	=begin table
1568		1790
1569	B<< C<h> >> Send Mouse X & Y on button press.	1791	B<< C<h> >> Send Mouse X & Y on button press.
1570	B<< C<l> >> No mouse reporting.	1792	B<< C<l> >> No mouse reporting.
1571		1793
1572	=end table	1794	=end table
1573		1795
1574	=item B<< C<Ps = 25> >>	1796	=item B<< C<Pm = 25> >>
1575		1797
1576	=begin table	1798	=begin table
1577		1799
1578	B<< C<h> >> Visible cursor {cnorm/cvvis}	1800	B<< C<h> >> Visible cursor {cnorm/cvvis}
1579	B<< C<l> >> Invisible cursor {civis}	1801	B<< C<l> >> Invisible cursor {civis}
1580		1802
1581	=end table	1803	=end table
1582		1804
1583	=item B<< C<Ps = 30> >>	1805	=item B<< C<Pm = 30> >>
1584		1806
1585	=begin table	1807	=begin table
1586		1808
1587	B<< C<h> >> scrollBar visisble	1809	B<< C<h> >> scrollBar visisble
1588	B<< C<l> >> scrollBar invisisble	1810	B<< C<l> >> scrollBar invisisble
1589		1811
1590	=end table	1812	=end table
1591		1813
1592	=item B<< C<Ps = 35> >> (B<rxvt>)	1814	=item B<< C<Pm = 35> >> (B<rxvt>)
1593		1815
1594	=begin table	1816	=begin table
1595		1817
1596	B<< C<h> >> Allow XTerm Shift+key sequences	1818	B<< C<h> >> Allow XTerm Shift+key sequences
1597	B<< C<l> >> Disallow XTerm Shift+key sequences	1819	B<< C<l> >> Disallow XTerm Shift+key sequences
1598		1820
1599	=end table	1821	=end table
1600		1822
1601	=item B<< C<Ps = 38> >> I<unimplemented>	1823	=item B<< C<Pm = 38> >> I<unimplemented>
1602		1824
1603	Enter Tektronix Mode (DECTEK)	1825	Enter Tektronix Mode (DECTEK)
1604		1826
1605	=item B<< C<Ps = 40> >>	1827	=item B<< C<Pm = 40> >>
1606		1828
1607	=begin table	1829	=begin table
1608		1830
1609	B<< C<h> >> Allow 80/132 Mode	1831	B<< C<h> >> Allow 80/132 Mode
1610	B<< C<l> >> Disallow 80/132 Mode	1832	B<< C<l> >> Disallow 80/132 Mode
1611		1833
1612	=end table	1834	=end table
1613		1835
1614	=item B<< C<Ps = 44> >> I<unimplemented>	1836	=item B<< C<Pm = 44> >> I<unimplemented>
1615		1837
1616	=begin table	1838	=begin table
1617		1839
1618	B<< C<h> >> Turn On Margin Bell	1840	B<< C<h> >> Turn On Margin Bell
1619	B<< C<l> >> Turn Off Margin Bell	1841	B<< C<l> >> Turn Off Margin Bell
1620		1842
1621	=end table	1843	=end table
1622		1844
1623	=item B<< C<Ps = 45> >> I<unimplemented>	1845	=item B<< C<Pm = 45> >> I<unimplemented>
1624		1846
1625	=begin table	1847	=begin table
1626		1848
1627	B<< C<h> >> Reverse-wraparound Mode	1849	B<< C<h> >> Reverse-wraparound Mode
1628	B<< C<l> >> No Reverse-wraparound Mode	1850	B<< C<l> >> No Reverse-wraparound Mode
1629		1851
1630	=end table	1852	=end table
1631		1853
1632	=item B<< C<Ps = 46> >> I<unimplemented>	1854	=item B<< C<Pm = 46> >> I<unimplemented>
1633		1855
1634	=item B<< C<Ps = 47> >>	1856	=item B<< C<Pm = 47> >>
1635		1857
1636	=begin table	1858	=begin table
1637		1859
1638	B<< C<h> >> Use Alternate Screen Buffer	1860	B<< C<h> >> Use Alternate Screen Buffer
1639	B<< C<l> >> Use Normal Screen Buffer	1861	B<< C<l> >> Use Normal Screen Buffer
1640		1862
1641	=end table	1863	=end table
1642		1864
1643	X<Priv66>	1865	X<Priv66>
1644		1866
1645	=item B<< C<Ps = 66> >>	1867	=item B<< C<Pm = 66> >>
1646		1868
1647	=begin table	1869	=begin table
1648		1870
1649	B<< C<h> >> Application Keypad (DECPAM) == C<ESC =>	1871	B<< C<h> >> Application Keypad (DECPAM) == C<ESC =>
1650	B<< C<l> >> Normal Keypad (DECPNM) == C<< ESC > >>	1872	B<< C<l> >> Normal Keypad (DECPNM) == C<< ESC > >>
1651		1873
1652	=end table	1874	=end table
1653		1875
1654	=item B<< C<Ps = 67> >>	1876	=item B<< C<Pm = 67> >>
1655		1877
1656	=begin table	1878	=begin table
1657		1879
1658	B<< C<h> >> Backspace key sends B<< C<BS> (DECBKM) >>	1880	B<< C<h> >> Backspace key sends B<< C<BS> (DECBKM) >>
1659	B<< C<l> >> Backspace key sends B<< C<DEL> >>	1881	B<< C<l> >> Backspace key sends B<< C<DEL> >>
1660		1882
1661	=end table	1883	=end table
1662		1884
1663	=item B<< C<Ps = 1000> >> (X11 XTerm)	1885	=item B<< C<Pm = 1000> >> (X11 XTerm)
1664		1886
1665	=begin table	1887	=begin table
1666		1888
1667	B<< C<h> >> Send Mouse X & Y on button press and release.	1889	B<< C<h> >> Send Mouse X & Y on button press and release.
1668	B<< C<l> >> No mouse reporting.	1890	B<< C<l> >> No mouse reporting.
1669		1891
1670	=end table	1892	=end table
1671		1893
1672	=item B<< C<Ps = 1001> >> (X11 XTerm) I<unimplemented>	1894	=item B<< C<Pm = 1001> >> (X11 XTerm) I<unimplemented>
1673		1895
1674	=begin table	1896	=begin table
1675		1897
1676	B<< C<h> >> Use Hilite Mouse Tracking.	1898	B<< C<h> >> Use Hilite Mouse Tracking.
1677	B<< C<l> >> No mouse reporting.	1899	B<< C<l> >> No mouse reporting.
1678		1900
1679	=end table	1901	=end table
1680		1902
1681	=item B<< C<Ps = 1010> >> (B<rxvt>)	1903	=item B<< C<Pm = 1010> >> (B<rxvt>)
1682		1904
1683	=begin table	1905	=begin table
1684		1906
1685	B<< C<h> >> Don't scroll to bottom on TTY output	1907	B<< C<h> >> Don't scroll to bottom on TTY output
1686	B<< C<l> >> Scroll to bottom on TTY output	1908	B<< C<l> >> Scroll to bottom on TTY output
1687		1909
1688	=end table	1910	=end table
1689		1911
1690	=item B<< C<Ps = 1011> >> (B<rxvt>)	1912	=item B<< C<Pm = 1011> >> (B<rxvt>)
1691		1913
1692	=begin table	1914	=begin table
1693		1915
1694	B<< C<h> >> Scroll to bottom when a key is pressed	1916	B<< C<h> >> Scroll to bottom when a key is pressed
1695	B<< C<l> >> Don't scroll to bottom when a key is pressed	1917	B<< C<l> >> Don't scroll to bottom when a key is pressed
1696		1918
1697	=end table	1919	=end table
1698		1920
1699	=item B<< C<Ps = 1021> >> (B<rxvt>)	1921	=item B<< C<Pm = 1021> >> (B<rxvt>)
1700		1922
1701	=begin table	1923	=begin table
1702		1924
1703	B<< C<h> >> Bold/italic implies high intensity (see option B<-is>)	1925	B<< C<h> >> Bold/italic implies high intensity (see option B<-is>)
1704	B<< C<l> >> Font styles have no effect on intensity (Compile styles)	1926	B<< C<l> >> Font styles have no effect on intensity (Compile styles)
1705		1927
1706	=end table	1928	=end table
1707		1929
1708	=item B<< C<Ps = 1047> >>	1930	=item B<< C<Pm = 1047> >>
1709		1931
1710	=begin table	1932	=begin table
1711		1933
1712	B<< C<h> >> Use Alternate Screen Buffer	1934	B<< C<h> >> Use Alternate Screen Buffer
1713	B<< C<l> >> Use Normal Screen Buffer - clear Alternate Screen Buffer if returning from it	1935	B<< C<l> >> Use Normal Screen Buffer - clear Alternate Screen Buffer if returning from it
1714		1936
1715	=end table	1937	=end table
1716		1938
1717	=item B<< C<Ps = 1048> >>	1939	=item B<< C<Pm = 1048> >>
1718		1940
1719	=begin table	1941	=begin table
1720		1942
1721	B<< C<h> >> Save cursor position	1943	B<< C<h> >> Save cursor position
1722	B<< C<l> >> Restore cursor position	1944	B<< C<l> >> Restore cursor position
1723		1945
1724	=end table	1946	=end table
1725		1947
1726	=item B<< C<Ps = 1049> >>	1948	=item B<< C<Pm = 1049> >>
1727		1949
1728	=begin table	1950	=begin table
1729		1951
1730	B<< C<h> >> Use Alternate Screen Buffer - clear Alternate Screen Buffer if switching to it	1952	B<< C<h> >> Use Alternate Screen Buffer - clear Alternate Screen Buffer if switching to it
1731	B<< C<l> >> Use Normal Screen Buffer	1953	B<< C<l> >> Use Normal Screen Buffer
…		…
1736		1958
1737	=back	1959	=back
1738		1960
1739	X<XTerm>	1961	X<XTerm>
1740		1962
1741	=head1 XTerm Operating System Commands	1963	=head2 XTerm Operating System Commands
1742		1964
1743	=over 4	1965	=over 4
1744		1966
1745	=item B<< C<ESC ] Ps;Pt ST> >>	1967	=item B<< C<ESC ] Ps;Pt ST> >>
1746		1968
…		…
1784		2006
1785	=end table	2007	=end table
1786		2008
1787	=back	2009	=back
1788		2010
1789	X<XPM>
1790
1791	=head1 XPM	2011	=head1 XPM
1792		2012
1793	For the XPM XTerm escape sequence B<< C<ESC ] 20 ; Pt ST> >> then value	2013	For the XPM XTerm escape sequence B<< C<ESC ] 20 ; Pt ST> >> then value
1794	of B<< C<Pt> >> can be the name of the background pixmap followed by a	2014	of B<< C<Pt> >> can be the name of the background pixmap followed by a
1795	sequence of scaling/positioning commands separated by semi-colons. The	2015	sequence of scaling/positioning commands separated by semi-colons. The
…		…
1892	=begin table	2112	=begin table
1893		2113
1894	4 Shift	2114	4 Shift
1895	8 Meta	2115	8 Meta
1896	16 Control	2116	16 Control
1897	32 Double Click I<(Rxvt extension)>	2117	32 Double Click I<(rxvt extension)>
1898		2118
1899	=end table	2119	=end table
1900		2120
1901	Col = B<< C<< <x> - SPACE >> >>	2121	Col = B<< C<< <x> - SPACE >> >>
1902		2122
…		…
2186	cursor blinking and underline cursor (-cb, -uc)	2406	cursor blinking and underline cursor (-cb, -uc)
2187	XEmbed support (-embed)	2407	XEmbed support (-embed)
2188	user-pty (-pty-fd)	2408	user-pty (-pty-fd)
2189	hold on exit (-hold)	2409	hold on exit (-hold)
2190	skip builtin block graphics (-sbg)	2410	skip builtin block graphics (-sbg)
		2411	separate highlightcolor support (-hc)
2191		2412
2192	It also enabled some non-essential features otherwise disabled, such as:	2413	It also enables some non-essential features otherwise disabled, such as:
2193		2414
2194	some round-trip time optimisations	2415	some round-trip time optimisations
2195	nearest color allocation on pseudocolor screens	2416	nearest color allocation on pseudocolor screens
2196	UTF8_STRING supporr for selection	2417	UTF8_STRING supporr for selection
2197	sgr modes 90..97 and 100..107	2418	sgr modes 90..97 and 100..107
…		…
2230	Remove support for mouse selection style like that of xterm.	2451	Remove support for mouse selection style like that of xterm.
2231		2452
2232	=item --enable-dmalloc (default: off)	2453	=item --enable-dmalloc (default: off)
2233		2454
2234	Use Gray Watson's malloc - which is good for debugging See	2455	Use Gray Watson's malloc - which is good for debugging See
2235	http://www.letters.com/dmalloc/ for details If you use either this or the	2456	L<http://www.letters.com/dmalloc/> for details If you use either this or the
2236	next option, you may need to edit src/Makefile after compiling to point	2457	next option, you may need to edit src/Makefile after compiling to point
2237	DINCLUDE and DLIB to the right places.	2458	DINCLUDE and DLIB to the right places.
2238		2459
2239	You can only use either this option and the following (should	2460	You can only use either this option and the following (should
2240	you use either) .	2461	you use either) .

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