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Revision 1.120 by root, Mon Aug 7 15:59:44 2006 UTC

1	=head1 NAME	1	=head1 NAME
2		2
3	RXVT REFERENCE - FAQ, command sequences and other background information	3	RXVT REFERENCE - FAQ, command sequences and other background information
4		4
		5	=head1 SYNOPSIS
		6
		7	# set a new font set
		8	printf '\33]50;%s\007' 9x15,xft:Kochi" Mincho"
		9
		10	# change the locale and tell rxvt-unicode about it
		11	export LC_CTYPE=ja_JP.EUC-JP; printf "\33]701;$LC_CTYPE\007"
		12
		13	# set window title
		14	printf '\33]2;%s\007' "new window title"
		15
		16	=head1 DESCRIPTION
		17
		18	This document contains the FAQ, the RXVT TECHNICAL REFERENCE documenting
		19	all escape sequences, and other background information.
		20
		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>.
		23
5	=head1 FREQUENTLY ASKED QUESTIONS	24	=head1 RXVT-UNICODE/URXVT FREQUENTLY ASKED QUESTIONS
6		25
7	=over 4
8		26
		27	=head2 Meta, Features & Commandline Issues
		28
		29	=head3 My question isn't answered here, can I ask a human?
		30
		31	Before sending me mail, you could go to IRC: C<irc.freenode.net>,
		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 :).
		34
		35	=head3 Does it support tabs, can I have a tabbed rxvt-unicode?
		36
		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:
		40
		41	@@URXVT_NAME@@ -pe tabbed
		42
		43	URxvt.perl-ext-common: default,tabbed
		44
		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.
		50
9	=item How do I know which rxvt-unicode version I'm using?	51	=head3 How do I know which rxvt-unicode version I'm using?
10		52
11	The version number is displayed with the usage (-h). Also the escape	53	The version number is displayed with the usage (-h). Also the escape
12	sequence C<ESC[8n> sets the window title to the version number.	54	sequence C<ESC [ 8 n> sets the window title to the version number. When
		55	using the @@URXVT_NAME@@c client, the version displayed is that of the
		56	daemon.
13		57
14	=item When I log-in to another system it tells me about missing terminfo data?
15
16	The terminal description used by rxvt-unicode is not as widely available
17	as that for xterm, or even rxvt (for which the same problem often arises).
18
19	The correct solution for this problem is to install the terminfo, this can
20	be done like this (with ncurses' infocmp):
21
22	REMOTE=remotesystem.domain
23	infocmp rxvt-unicode | ssh $REMOTE "cat >/tmp/ti && tic /tmp/ti"
24
25	... or by installing rxvt-unicode normally on the remote system,
26
27	If you cannot or do not want to do this, then you can simply set
28	C<TERM=rxvt> or even C<TERM=xterm>, and live with the small number of
29	problems arising, which includes wrong keymapping, less and different
30	colours and some refresh errors in fullscreen applications. It's a nice
31	quick-and-dirty workaround for rare cases, though.
32
33	If you always want to do this you can either recompile rxvt-unicode with
34	the desired TERM value or use a resource to set it:
35
36	URxvt.termName: rxvt
37
38	If you don't plan to use B<rxvt> (quite common...) you could also replace
39	the rxvt terminfo file with the rxvt-unicode one.
40
41	=item I need a termcap file entry.
42
43	You could use rxvt's termcap entry with resonable results in many cases.
44	You can also create a termcap entry by using terminfo's infocmp program
45	like this:
46
47	infocmp -C rxvt-unicode
48
49	OR you could this termcap entry:
50
51	rxvt-unicode|rxvt-unicode terminal (X Window System):\
52	:am:bw:eo:km:mi:ms:xn:xo:\
53	:co#80:it#8:li#24:\
54	:AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\
55	:K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\
56	:RI=\E[%dC:SF=\E[%dS:SR=\E[%dT:UP=\E[%dA:ae=^O:al=\E[L:\
57	:as=^N:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:cm=\E[%i%d;%dH:\
58	:cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:dl=\E[M:do=^J:\
59	:ec=\E[%dX:ei=\E[4l:ho=\E[H:i1=\E[?47l\E=\E[?1l:ic=\E[@:\
60	:im=\E[4h:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\
61	:k0=\E[21~:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:\
62	:k5=\E[15~:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:\
63	:kD=\E[3~:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:kd=\EOB:\
64	:ke=\E[?1l\E>:kh=\E[7~:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:\
65	:ku=\EOA:le=^H:mb=\E[5m:md=\E[1m:me=\E[m\017:mr=\E[7m:\
66	:nd=\E[C:rc=\E8:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:\
67	:st=\EH:ta=^I:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:\
68	:up=\E[A:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\
69	:vs=\E[?25h:
70
71	=item Why does C<ls> no longer have coloured output?
72
73	The C<ls> in the GNU coreutils unfortunately doesn't use terminfo to
74	decide wether a terminal has colour, but uses it's own configuration
75	file. Needless to say, C<rxvt-unicode> is not in it's default file (among
76	with most other terminals supporting colour). Either add:
77
78	TERM rxvt-unicode
79
80	to C</etc/DIR_COLORS> or simply add:
81
82	alias ls='ls --color=auto'
83
84	to your C<.profile> or C<.bashrc>.
85
86	=item Why doesn't vim/emacs etc. use the 88 colour mode?
87
88	=item Why doesn't vim/emacs etc. make use of italic?
89
90	=item Why are the secondary screen-related options not working properly?
91
92	Make sure you are using C<TERM=rxvt-unicode>. Some pre-packaged
93	distributions (most notably Debian GNU/Linux) break rxvt-unicode
94	by setting C<TERM> to C<rxvt>, which doesn't have these extra
95	features. Unfortunately, some of these (most notably, again, Debian
96	GNU/Linux) furthermore fail to even install the C<rxvt-unicode> terminfo
97	file, so you will need to install it on your own (See the question B<When
98	I log-in to another system it tells me about missing terminfo data?> on
99	how to do this).
100
101	=item Rxvt-unicode does not seem to understand the selected encoding?
102
103	=item Unicode does not seem to work?
104
105	If you encounter strange problems like typing an accented character but
106	getting two unrelated other characters or similar, or if program output is
107	subtly garbled, then you should check your locale settings.
108
109	Rxvt-unicode must be started with the same C<LC_CTYPE> setting as the
110	programs. Often rxvt-unicode is started in the C<C> locale, while the
111	login script running within the rxvt-unicode window changes the locale to
112	sth. else, e.h. C<en_GB.UTF-8>. Needless to say, this is not going to work.
113
114	The best thing is to fix your startup environment, as you will likely run
115	into other problems. If nothing works you can try this in your .profile.
116
117	printf '\e]701;%s\007' "$LC_CTYPE"
118
119	If this doesn't work, then maybe you use a C<LC_CTYPE> specification not
120	supported on your systems. Some systems have a C<locale> command which
121	displays this. If it displays sth. like:
122
123	locale: Cannot set LC_CTYPE to default locale: ...
124
125	Then the locale you specified is not supported on your system.
126
127	If nothing works and you are sure that everything is set correctly then
128	you will need to remember a little known fact: Some programs just don't
129	support locales :(
130
131	=item Why do some characters look so much different than others?
132
133	=item How does rxvt-unicode choose fonts?
134
135	Most fonts do not contain the full range of Unicode, which is
136	fine. Chances are that the font you (or the admin/package maintainer of
137	your system/os) have specified does not cover all the characters you want
138	to display.
139
140	B<rxvt-unicode> makes a best-effort try at finding a replacement
141	font. Often the result is fine, but sometimes the chosen font looks
142	bad. Many fonts have totally strange characters that don't resemble the
143	correct glyph at all, and rxvt-unicode lacks the artificial intelligence
144	to detect that a specific glyph is wrong: it has to believe the font that
145	the characters it contains indeed look correct.
146
147	In that case, select a font of your taste and add it to the font list,
148	e.g.:
149
150	@@RXVT_NAME@@ -fn basefont,font2,font3...
151
152	When rxvt-unicode sees a character, it will first look at the base
153	font. If the base font does not contain the character, it will go to the
154	next font, and so on. Specifying your own fonts will also speed up this
155	search and use less resources within rxvt-unicode and the X-server.
156
157	The only limitation is that all the fonts must not be larger than the base
158	font, as the base font defines the principal cell size, which must be the
159	same due to the way terminals work.
160
161	=item Why do some chinese characters look so different than others?
162
163	This is because there is a difference between script and language --
164	rxvt-unicode does not know which language the text that is output
165	is, as it only knows the unicode character codes. If rxvt-unicode
166	first sees a japanese character, it might choose a japanese font for
167	it. Subsequent japanese characters will take that font. Now, many chinese
168	characters aren't represented in japanese fonts, so when the first
169	non-japanese character comes up, rxvt-unicode will look for a chinese font
170	-- unfortunately at this point, it will still use the japanese font for
171	japanese characters that are also chinese.
172
173	The workaround is easy: just tag a chinese font at the end of your font
174	list (see the previous question). The key is to view the font list as
175	a preference list: If you expect more japanese, list a japanese font
176	first. If you expect more chinese, put a chinese font first.
177
178	In the future it might be possible to switch preferences at runtime (the
179	internal data structure has no problem with using different fonts for
180	the same character at the same time, but no interface for this has been
181	designed yet).
182
183	=item Why does rxvt-unicode sometimes leave pixel droppings?
184
185	Most fonts were not designed for terminal use, which means that character
186	size varies a lot. A font that is otherwise fine for terminal use might
187	contain some characters that are simply too wide. Rxvt-unicode will avoid
188	these characters. For characters that are just "a bit" too wide a special
189	"careful" rendering mode is used that redraws adjacent characters.
190
191	All of this requires that fonts do not lie about character sizes,
192	however: Xft fonts often draw glyphs larger than their acclaimed bounding
193	box, and rxvt-unicode has no way of detecting this (the correct way is to
194	ask for the character bounding box, which unfortunately is wrong in these
195	cases).
196
197	It's not clear (to me at least), wether this is a bug in Xft, freetype,
198	or the respective font. If you encounter this problem you might try using
199	the C<-lsp> option to give the font more height. If that doesn't work, you
200	might be forced to use a different font.
201
202	All of this is not a problem when using X11 core fonts, as their bounding
203	box data is correct.
204
205	=item My Compose (Multi_key) key is no longer working.
206
207	The most common causes for this are that either your locale is not set
208	correctly, or you specified a B<preeditStyle> that is not supported by
209	your input method. For example, if you specified B<OverTheSpot> and
210	your input method (e.g. the default input method handling Compose keys)
211	does not support this (for instance because it is not visual), then
212	rxvt-unicode will continue without an input method.
213
214	In this case either do not specify a B<preeditStyle> or specify more than
215	one pre-edit style, such as B<OverTheSpot,Root,None>.
216
217	=item I cannot type C<Ctrl-Shift-2> to get an ASCII NUL character due to ISO 14755
218
219	Either try C<Ctrl-2> alone (it often is mapped to ASCII NUL even on
220	international keyboards) or simply use ISO 14755 support to your
221	advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for other
222	codes, too, such as C<Ctrl-Shift-1-d> to type the default telnet escape
223	character and so on.
224
225	=item How can I keep rxvt-unicode from using reverse video so much?
226
227	First of all, make sure you are running with the right terminfo
228	(C<urxvt>), which will get rid of most of these effects. Then make sure
229	you have specified colours for italic and bold, as otherwise rxvt-unicode
230	might use reverse video to simulate the effect:
231
232	URxvt*colorBD: white
233	URxvt*colorIT: green
234
235	=item Some programs assume totally weird colours (red instead of blue), how can I fix that?
236
237	For some unexplainable reason, some programs (i.e. irssi) assume a very
238	weird colour palette when confronted with a terminal with more than the
239	standard 8 colours (rxvt-unicode supports 88). The right fix is, of
240	course, to fix these programs not to assume non-ISO colours without very
241	good reasons.
242
243	In the meantime, you can either edit your C<urxvt> terminfo definition to
244	only claim 8 colour support or use C<TERM=rxvt>, which will fix colours
245	but keep you from using other rxvt-unicode features.
246
247	=item I am on FreeBSD and rxvt-unicode does not seem to work at all.
248
249	Rxvt-unicode requires the symbol C<__STDC_ISO_10646__> to be defined
250	in your compile environment, or an implementation that implements it,
251	wether it defines the symbol or not. C<__STDC_ISO_10646__> requires that
252	B<wchar_t> is represented as unicode.
253
254	As you might have guessed, FreeBSD does neither define this symobl nor
255	does it support it. Instead, it uses it's own internal representation of
256	B<wchar_t>. This is, of course, completely legal.
257
258	However, C<__STDC_ISO_10646__> is the only sane way to support
259	multi-language apps in an OS, as using a locale-dependent (and
260	non-standardized) representation of B<wchar_t> makes it impossible to
261	convert between B<wchar_t> (as used by X11 and your applications) and any
262	other encoding without implementing OS-specific-wrappers for each and
263	every locale. There simply are no APIs to convert B<wchar_t> into anything
264	except the current locale encoding.
265
266	Some applications (such as the formidable B<mlterm>) work around this
267	by carrying their own replacement functions for character set handling
268	with them, and either implementing OS-dependent hacks or doing multiple
269	conversions (which is slow and unreliable in case the OS implements
270	encodings slightly different than the terminal emulator).
271
272	The rxvt-unicode author insists that the right way to fix this is in the
273	system libraries once and for all, instead of forcing every app to carry
274	complete replacements.
275
276	=item How does rxvt-unicode determine the encoding to use?
277
278	=item Is there an option to switch encodings?
279
280	Unlike some other terminals, rxvt-unicode has no encoding switch, and no
281	specific "utf-8" mode, such as xterm. In fact, it doesn't even know about
282	UTF-8 or any other encodings with respect to terminal I/O.
283
284	The reasons is that there exists a perfectly fine mechanism for selecting
285	the encoding, doing I/O and (most important) communicating this to all
286	applications so everybody agrees on character properties such as width and
287	code number. This mechanism is the I<locale>.
288
289	Rxvt-unicode uses the C<LC_CTYPE> locale category to select encoding. All
290	programs doing the same (that is, most) will automatically agree in the
291	interpretation of characters.
292
293	Unfortunately, there is no system-independent way to select locales, nor
294	is there a standard on how locale specifiers will look like.
295
296	On most systems, the content of the C<LC_CTYPE> environment variable
297	contains an arbitrary string which corresponds to an already-installed
298	locale. Common names for locales are C<en_US.UTF-8>, C<de_DE.ISO-8859-15>,
299	C<ja_JP.EUC-JP>, i.e. C<language_country.encoding>, but other forms
300	(i.e. C<de> or C<german>) are also common.
301
302	Rxvt-unicode ignores all other locale categories, and except for
303	the encoding, ignores country or language-specific settings,
304	i.e. C<de_DE.UTF-8> and C<ja_JP.UTF-8> are the same for rxvt-unicode.
305
306	If you want to use a specific encoding you have to make sure you start
307	rxvt-unicode with the correct C<LC_CTYPE> category.
308
309	=item Can I switch locales at runtime?
310
311	Yes, using an escape sequence. Try sth. like this, which sets
312	rxvt-unicode's idea of C<LC_CTYPE>.
313
314	printf '\e]701;%s\007' ja_JP.SJIS
315
316	See also the previous question.
317
318	Sometimes this capability is rather handy when you want to work in one
319	locale (e.g. C<de_DE.UTF-8>) but some programs don't support UTF-8. For
320	example, I use this script to start C<xjdic>, which first switches to a
321	locale supported by xjdic and back later:
322
323	printf '\e]701;%s\007' ja_JP.SJIS
324	xjdic -js
325	printf '\e]701;%s\007' de_DE.UTF-8
326
327	=item Can I switch the fonts at runtime?
328
329	Yes, using an escape sequence. Try sth. like this, which has the same
330	effect as using the C<-fn> switch, and takes effect immediately:
331
332	printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic"
333
334	This is useful if you e.g. work primarily with japanese (and prefer a
335	japanese font), but you have to switch to chinese temporarily, where
336	japanese fonts would only be in your way.
337
338	You can think of this as a kind of manual ISO-2022 switching.
339
340	=item Why do italic characters look as if clipped?
341
342	Many fonts have difficulties with italic characters and hinting. For
343	example, the otherwise very nicely hinted font C<xft:Bitstream Vera Sans
344	Mono> completely fails in it's italic face. A workaround is to enable
345	freetype autohinting, i.e. like this:
346
347	URxvt*italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
348	URxvt*boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
349
350	=item My input method wants <some encoding> but I want UTF-8, what can I do?
351
352	You can specify separate locales for the input method and the rest of the
353	terminal, using the resource C<imlocale>:
354
355	URxvt*imlocale: ja_JP.EUC-JP
356
357	Now you can start your terminal with C<LC_CTYPE=ja_JP.UTF-8> and still
358	use your input method. Please note, however, that you will not be able to
359	input characters outside C<EUC-JP> in a normal way then, as your input
360	method limits you.
361
362	=item Rxvt-unicode uses gobs of memory, how can I reduce that?	58	=head3 Rxvt-unicode uses gobs of memory, how can I reduce that?
363		59
364	Rxvt-unicode tries to obey the rule of not charging you for sth. you	60	Rxvt-unicode tries to obey the rule of not charging you for something you
365	don't use. One thing you should try is to configure out all settings that	61	don't use. One thing you should try is to configure out all settings that
366	you don't need, for example, Xft support is a resource hog by design,	62	you don't need, for example, Xft support is a resource hog by design,
367	when used. Compiling it out ensures that no Xft font will be loaded	63	when used. Compiling it out ensures that no Xft font will be loaded
368	accidentally when rxvt-unicode tries to find a font for your characters.	64	accidentally when rxvt-unicode tries to find a font for your characters.
369		65
…		…
372	6 bytes per screen cell. For a 160x?? window this amounts to almost a	68	6 bytes per screen cell. For a 160x?? window this amounts to almost a
373	kilobyte per line. A scrollback buffer of 10000 lines will then (if full)	69	kilobyte per line. A scrollback buffer of 10000 lines will then (if full)
374	use 10 Megabytes of memory. With C<--enable-unicode3> it gets worse, as	70	use 10 Megabytes of memory. With C<--enable-unicode3> it gets worse, as
375	rxvt-unicode then uses 8 bytes per screen cell.	71	rxvt-unicode then uses 8 bytes per screen cell.
376		72
		73	=head3 How can I start @@URXVT_NAME@@d in a race-free way?
		74
		75	Try C<@@URXVT_NAME@@d -f -o>, which tells @@URXVT_NAME@@d to open the
		76	display, create the listening socket and then fork.
		77
		78	=head3 How can I start @@URXVT_NAME@@d automatically when I run URXVT_NAME@@c?
		79
		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:
		82
		83	#!/bin/sh
		84	@@URXVT_NAME@@c "$@"
		85	if [ $? -eq 2 ]; then
		86	@@URXVT_NAME@@d -q -o -f
		87	@@URXVT_NAME@@c "$@"
		88	fi
		89
		90	This tries to create a new terminal, and if fails with exit status 2,
		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.
		94
		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.
		96
		97	The original rxvt and rxvt-unicode always export the variable "COLORTERM",
		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.
		101
		102	=head3 How do I set the correct, full IP address for the DISPLAY variable?
		103
		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.
		110
		111	Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script
		112	snippets:
		113
		114	# Bourne/Korn/POSIX family of shells:
		115	[ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know
		116	if [ ${TERM:-foo} = xterm ]; then
		117	stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not
		118	echo -n '^[Z'
		119	read term_id
		120	stty icanon echo
		121	if [ ""${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
		126
		127	=head3 How do I compile the manual pages on my own?
		128
		129	You need to have a recent version of perl installed as F</usr/bin/perl>,
		130	one that comes with F<pod2man>, F<pod2text> and F<pod2html>. Then go to
		131	the doc subdirectory and enter C<make alldoc>.
		132
		133	=head3 Isn't rxvt-unicode supposed to be small? Don't all those features bloat?
		134
		135	I often get asked about this, and I think, no, they didn't cause extra
		136	bloat. If you compare a minimal rxvt and a minimal urxvt, you can see
		137	that the urxvt binary is larger (due to some encoding tables always being
		138	compiled in), but it actually uses less memory (RSS) after startup. Even
		139	with C<--disable-everything>, this comparison is a bit unfair, as many
		140	features unique to urxvt (locale, encoding conversion, iso14755 etc.) are
		141	already in use in this mode.
		142
		143	text data bss drs rss filename
		144	98398 1664 24 15695 1824 rxvt --disable-everything
		145	188985 9048 66616 18222 1788 urxvt --disable-everything
		146
		147	When you C<--enable-everything> (which I<is> unfair, as this involves xft
		148	and full locale/XIM support which are quite bloaty inside libX11 and my
		149	libc), the two diverge, but not unreasonably so.
		150
		151	text data bss drs rss filename
		152	163431 2152 24 20123 2060 rxvt --enable-everything
		153	1035683 49680 66648 29096 3680 urxvt --enable-everything
		154
		155	The very large size of the text section is explained by the east-asian
		156	encoding tables, which, if unused, take up disk space but nothing else
		157	and can be compiled out unless you rely on X11 core fonts that use those
		158	encodings. The BSS size comes from the 64k emergency buffer that my c++
		159	compiler allocates (but of course doesn't use unless you are out of
		160	memory). Also, using an xft font instead of a core font immediately adds a
		161	few megabytes of RSS. Xft indeed is responsible for a lot of RSS even when
		162	not used.
		163
		164	Of course, due to every character using two or four bytes instead of one,
		165	a large scrollback buffer will ultimately make rxvt-unicode use more
		166	memory.
		167
		168	Compared to e.g. Eterm (5112k), aterm (3132k) and xterm (4680k), this
		169	still fares rather well. And compared to some monsters like gnome-terminal
		170	(21152k + extra 4204k in separate processes) or konsole (22200k + extra
		171	43180k in daemons that stay around after exit, plus half a minute of
		172	startup time, including the hundreds of warnings it spits out), it fares
		173	extremely well *g*.
		174
		175	=head3 Why C++, isn't that unportable/bloated/uncool?
		176
		177	Is this a question? :) It comes up very often. The simple answer is: I had
		178	to write it, and C++ allowed me to write and maintain it in a fraction
		179	of the time and effort (which is a scarce resource for me). Put even
		180	shorter: It simply wouldn't exist without C++.
		181
		182	My personal stance on this is that C++ is less portable than C, but in
		183	the case of rxvt-unicode this hardly matters, as its portability limits
		184	are defined by things like X11, pseudo terminals, locale support and unix
		185	domain sockets, which are all less portable than C++ itself.
		186
		187	Regarding the bloat, see the above question: It's easy to write programs
		188	in C that use gobs of memory, an certainly possible to write programs in
		189	C++ that don't. C++ also often comes with large libraries, but this is
		190	not necessarily the case with GCC. Here is what rxvt links against on my
		191	system with a minimal config:
		192
		193	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
		194	libc.so.6 => /lib/libc.so.6 (0x00002aaaaadde000)
		195	libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab01d000)
		196	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
		197
		198	And here is rxvt-unicode:
		199
		200	libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
		201	libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00002aaaaada2000)
		202	libc.so.6 => /lib/libc.so.6 (0x00002aaaaaeb0000)
		203	libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab0ee000)
		204	/lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
		205
		206	No large bloated libraries (of course, none were linked in statically),
		207	except maybe libX11 :)
		208
		209
		210	=head2 Rendering, Font & Look and Feel Issues
		211
		212	=head3 I can't get transparency working, what am I doing wrong?
		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
377	=item Can I speed up Xft rendering somehow?	325	=head3 Can I speed up Xft rendering somehow?
378		326
379	Yes, the most obvious way to speed it up is to avoid Xft entirely, as	327	Yes, the most obvious way to speed it up is to avoid Xft entirely, as
380	it is simply slow. If you still want Xft fonts you might try to disable	328	it is simply slow. If you still want Xft fonts you might try to disable
381	antialiasing (by appending C<:antialiasing=false>), which saves lots of	329	antialiasing (by appending C<:antialias=false>), which saves lots of
382	memory and also speeds up rendering considerably.	330	memory and also speeds up rendering considerably.
383		331
384	=item Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?	332	=head3 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
385		333
386	Rxvt-unicode will use whatever you specify as a font. If it needs to	334	Rxvt-unicode will use whatever you specify as a font. If it needs to
387	fall back to it's default font search list it will prefer X11 core	335	fall back to its default font search list it will prefer X11 core
388	fonts, because they are small and fast, and then use Xft fonts. It has	336	fonts, because they are small and fast, and then use Xft fonts. It has
389	antialiasing disabled for most of them, because the author thinks they	337	antialiasing disabled for most of them, because the author thinks they
390	look best that way.	338	look best that way.
391		339
392	If you want antialiasing, you have to specify the fonts manually.	340	If you want antialiasing, you have to specify the fonts manually.
393		341
394	=item Mouse cut/paste suddenly no longer works.
395
396	Make sure that mouse reporting is actually turned off since killing
397	some editors prematurely may leave the mouse in mouse report mode. I've
398	heard that tcsh may use mouse reporting unless it otherwise specified. A
399	quick check is to see if cut/paste works when the Alt or Shift keys are
400	depressed. See @@RXVT_NAME@@(7)
401
402	=item What's with this bold/blink stuff?	342	=head3 What's with this bold/blink stuff?
403		343
404	If no bold colour is set via C<colorBD:>, bold will invert text using the	344	If no bold colour is set via C<colorBD:>, bold will invert text using the
405	standard foreground colour.	345	standard foreground colour.
406		346
407	For the standard background colour, blinking will actually make the	347	For the standard background colour, blinking will actually make the
…		…
414		354
415	color0-7 are the low-intensity colors.	355	color0-7 are the low-intensity colors.
416		356
417	color8-15 are the corresponding high-intensity colors.	357	color8-15 are the corresponding high-intensity colors.
418		358
419	=item I don't like the screen colors. How do I change them?	359	=head3 I don't like the screen colors. How do I change them?
420		360
421	You can change the screen colors at run-time using F<~/.Xdefaults>	361	You can change the screen colors at run-time using F<~/.Xdefaults>
422	resources (or as long-options).	362	resources (or as long-options).
423		363
424	Here are values that are supposed to resemble a VGA screen,	364	Here are values that are supposed to resemble a VGA screen,
425	including the murky brown that passes for low-intensity yellow:	365	including the murky brown that passes for low-intensity yellow:
426		366
427	URxvt*color0: #000000	367	URxvt.color0: #000000
428	URxvt*color1: #A80000	368	URxvt.color1: #A80000
429	URxvt*color2: #00A800	369	URxvt.color2: #00A800
430	URxvt*color3: #A8A800	370	URxvt.color3: #A8A800
431	URxvt*color4: #0000A8	371	URxvt.color4: #0000A8
432	URxvt*color5: #A800A8	372	URxvt.color5: #A800A8
433	URxvt*color6: #00A8A8	373	URxvt.color6: #00A8A8
434	URxvt*color7: #A8A8A8	374	URxvt.color7: #A8A8A8
435		375
436	URxvt*color8: #000054	376	URxvt.color8: #000054
437	URxvt*color9: #FF0054	377	URxvt.color9: #FF0054
438	URxvt*color10: #00FF54	378	URxvt.color10: #00FF54
439	URxvt*color11: #FFFF54	379	URxvt.color11: #FFFF54
440	URxvt*color12: #0000FF	380	URxvt.color12: #0000FF
441	URxvt*color13: #FF00FF	381	URxvt.color13: #FF00FF
442	URxvt*color14: #00FFFF	382	URxvt.color14: #00FFFF
443	URxvt*color15: #FFFFFF	383	URxvt.color15: #FFFFFF
444		384
445	And here is a more complete set of non-standard colors described as	385	And here is a more complete set of non-standard colors.
446	"pretty girly":
447		386
448	URxvt.cursorColor: #dc74d1	387	URxvt.cursorColor: #dc74d1
449	URxvt.pointerColor: #dc74d1	388	URxvt.pointerColor: #dc74d1
450	URxvt.background: #0e0e0e	389	URxvt.background: #0e0e0e
451	URxvt.foreground: #4ad5e1	390	URxvt.foreground: #4ad5e1
…		…
462	URxvt.color6: #73f7ff	401	URxvt.color6: #73f7ff
463	URxvt.color14: #73f7ff	402	URxvt.color14: #73f7ff
464	URxvt.color7: #e1dddd	403	URxvt.color7: #e1dddd
465	URxvt.color15: #e1dddd	404	URxvt.color15: #e1dddd
466		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
		520	URxvt.perl-ext-common: default,-readline
		521
		522	=head3 My numerical keypad acts weird and generates differing output?
		523
		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.
		530
		531	=head3 My Compose (Multi_key) key is no longer working.
		532
		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.
		539
		540	In this case either do not specify a B<preeditStyle> or specify more than
		541	one pre-edit style, such as B<OverTheSpot,Root,None>.
		542
		543	=head3 I cannot type C<Ctrl-Shift-2> to get an ASCII NUL character due to ISO 14755
		544
		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.
		550
		551	=head3 Mouse cut/paste suddenly no longer works.
		552
		553	Make sure that mouse reporting is actually turned off since killing
		554	some editors prematurely may leave the mouse in mouse report mode. I've
		555	heard that tcsh may use mouse reporting unless it otherwise specified. A
		556	quick check is to see if cut/paste works when the Alt or Shift keys are
		557	depressed.
		558
467	=item What's with the strange Backspace/Delete key behaviour?	559	=head3 What's with the strange Backspace/Delete key behaviour?
468		560
469	Assuming that the physical Backspace key corresponds to the	561	Assuming that the physical Backspace key corresponds to the
470	BackSpace keysym (not likely for Linux ... see the following	562	Backspace keysym (not likely for Linux ... see the following
471	question) there are two standard values that can be used for	563	question) there are two standard values that can be used for
472	Backspace: C<^H> and C<^?>.	564	Backspace: C<^H> and C<^?>.
473		565
474	Historically, either value is correct, but rxvt-unicode adopts the debian	566	Historically, either value is correct, but rxvt-unicode adopts the debian
475	policy of using C<^?> when unsure, because it's the one only only correct	567	policy of using C<^?> when unsure, because it's the one only only correct
…		…
483		575
484	For starting a new rxvt-unicode:	576	For starting a new rxvt-unicode:
485		577
486	# use Backspace = ^H	578	# use Backspace = ^H
487	$ stty erase ^H	579	$ stty erase ^H
488	$ @@RXVT_NAME@@	580	$ @@URXVT_NAME@@
489		581
490	# use Backspace = ^?	582	# use Backspace = ^?
491	$ stty erase ^?	583	$ stty erase ^?
492	$ @@RXVT_NAME@@	584	$ @@URXVT_NAME@@
493		585
494	Toggle with "ESC[36h" / "ESC[36l" as documented in @@RXVT_NAME@@(7).	586	Toggle with C<ESC [ 36 h> / C<ESC [ 36 l>.
495		587
496	For an existing rxvt-unicode:	588	For an existing rxvt-unicode:
497		589
498	# use Backspace = ^H	590	# use Backspace = ^H
499	$ stty erase ^H	591	$ stty erase ^H
…		…
508	properly reflects that.	600	properly reflects that.
509		601
510	The Delete key is a another casualty of the ill-defined Backspace problem.	602	The Delete key is a another casualty of the ill-defined Backspace problem.
511	To avoid confusion between the Backspace and Delete keys, the Delete	603	To avoid confusion between the Backspace and Delete keys, the Delete
512	key has been assigned an escape sequence to match the vt100 for Execute	604	key has been assigned an escape sequence to match the vt100 for Execute
513	(ESC[3~) and is in the supplied termcap/terminfo.	605	(C<ESC [ 3 ~>) and is in the supplied termcap/terminfo.
514		606
515	Some other Backspace problems:	607	Some other Backspace problems:
516		608
517	some editors use termcap/terminfo,	609	some editors use termcap/terminfo,
518	some editors (vim I'm told) expect Backspace = ^H,	610	some editors (vim I'm told) expect Backspace = ^H,
519	GNU Emacs (and Emacs-like editors) use ^H for help.	611	GNU Emacs (and Emacs-like editors) use ^H for help.
520		612
521	Perhaps someday this will all be resolved in a consistent manner.	613	Perhaps someday this will all be resolved in a consistent manner.
522		614
523	=item I don't like the key-bindings. How do I change them?	615	=head3 I don't like the key-bindings. How do I change them?
524		616
525	There are some compile-time selections available via configure. Unless	617	There are some compile-time selections available via configure. Unless
526	you have run "configure" with the C<--disable-resources> option you can	618	you have run "configure" with the C<--disable-resources> option you can
527	use the `keysym' resource to alter the keystrings associated with keysyms.	619	use the `keysym' resource to alter the keystrings associated with keysyms.
528		620
529	Here's an example for a URxvt session started using `@@RXVT_NAME@@ -name URxvt'	621	Here's an example for a URxvt session started using C<@@URXVT_NAME@@ -name URxvt>
530		622
531	URxvt.keysym.Home: \033[1~	623	URxvt.keysym.Home: \033[1~
532	URxvt.keysym.End: \033[4~	624	URxvt.keysym.End: \033[4~
533	URxvt.keysym.C-apostrophe: \033<C-'>	625	URxvt.keysym.C-apostrophe: \033<C-'>
534	URxvt.keysym.C-slash: \033<C-/>	626	URxvt.keysym.C-slash: \033<C-/>
…		…
549	URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >	641	URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
550	URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007	642	URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
551		643
552	See some more examples in the documentation for the B<keysym> resource.	644	See some more examples in the documentation for the B<keysym> resource.
553		645
554	=item I'm using keyboard model XXX that has extra Prior/Next/Insert keys.	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
555	How do I make use of them? For example, the Sun Keyboard type 4
556	has the following mappings that rxvt-unicode doesn't recognize.
557		647
558	KP_Insert == Insert	648	KP_Insert == Insert
559	F22 == Print	649	F22 == Print
560	F27 == Home	650	F27 == Home
561	F29 == Prior	651	F29 == Prior
…		…
564		654
565	Rather than have rxvt-unicode try to accommodate all the various possible	655	Rather than have rxvt-unicode try to accommodate all the various possible
566	keyboard mappings, it is better to use `xmodmap' to remap the keys as	656	keyboard mappings, it is better to use `xmodmap' to remap the keys as
567	required for your particular machine.	657	required for your particular machine.
568		658
569	=item How do I distinguish if I'm running rxvt-unicode or a regular xterm?
570	I need this to decide about setting colors etc.
571		659
572	rxvt and rxvt-unicode always export the variable "COLORTERM", so you can
573	check and see if that is set. Note that several programs, JED, slrn,
574	Midnight Commander automatically check this variable to decide whether or
575	not to use color.
576		660
577	=item How do I set the correct, full IP address for the DISPLAY variable?	661	=head2 Terminal Configuration
578		662
579	If you've compiled rxvt-unicode with DISPLAY_IS_IP and have enabled	663	=head3 Can I see a typical configuration?
580	insecure mode then it is possible to use the following shell script
581	snippets to correctly set the display. If your version of rxvt-unicode
582	wasn't also compiled with ESCZ_ANSWER (as assumed in these snippets) then
583	the COLORTERM variable can be used to distinguish rxvt-unicode from a
584	regular xterm.
585		664
586	Courtesy of Chuck Blake <cblake@BBN.COM> with the following shell script	665	The default configuration tries to be xterm-like, which I don't like that
587	snippets:	666	much, but it's least surprise to regular users.
588		667
589	# Bourne/Korn/POSIX family of shells:	668	As a rxvt or rxvt-unicode user, you are practically supposed to invest
590	[ ${TERM:-foo} = foo ] && TERM=xterm # assume an xterm if we don't know	669	time into customising your terminal. To get you started, here is the
591	if [ ${TERM:-foo} = xterm ]; then	670	author's .Xdefaults entries, with comments on what they do. It's certainly
592	stty -icanon -echo min 0 time 15 # see if enhanced rxvt or not	671	not I<typical>, but what's typical...
593	echo -n '^[Z'
594	read term_id
595	stty icanon echo
596	if [ ""${term_id} = '^[[?1;2C' -a ${DISPLAY:-foo} = foo ]; then
597	echo -n '^[[7n' # query the rxvt we are in for the DISPLAY string
598	read DISPLAY # set it in our local shell
599	fi
600	fi
601		672
602	=item How do I compile the manual pages for myself?	673	URxvt.cutchars: "()*,<>[]{}|'
		674	URxvt.print-pipe: cat >/tmp/xxx
603		675
604	You need to have a recent version of perl installed as F</usr/bin/perl>,	676	These are just for testing stuff.
605	one that comes with F<pod2man>, F<pod2text> and F<pod2html>. Then go to
606	the doc subdirectory and enter C<make alldoc>.
607		677
608	=item My question isn't answered here, can I ask a human?	678	URxvt.imLocale: ja_JP.UTF-8
		679	URxvt.preeditType: OnTheSpot,None
609		680
610	Before sending me mail, you could go to IRC: C<irc.freenode.net>,	681	This tells rxvt-unicode to use a special locale when communicating with
611	channel C<#rxvt-unicode> has some rxvt-unicode enthusiasts that might be	682	the X Input Method, and also tells it to only use the OnTheSpot pre-edit
612	interested in learning about new and exciting problems (but not FAQs :).	683	type, which requires the C<xim-onthespot> perl extension but rewards me
		684	with correct-looking fonts.
		685
		686	URxvt.perl-lib: /root/lib/urxvt
		687	URxvt.perl-ext-common: default,selection-autotransform,selection-pastebin,xim-onthespot,remote-clipboard
		688	URxvt.selection.pattern-0: ( at .*? line \\d+)
		689	URxvt.selection.pattern-1: ^(/[^:]+):\
		690	URxvt.selection-autotransform.0: s/^([^:[:space:]]+):(\\d+):?$/: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
		837	=head3 When I log-in to another system it tells me about missing terminfo data?
		838
		839	The terminal description used by rxvt-unicode is not as widely available
		840	as that for xterm, or even rxvt (for which the same problem often arises).
		841
		842	The correct solution for this problem is to install the terminfo, this can
		843	be done like this (with ncurses' infocmp):
		844
		845	REMOTE=remotesystem.domain
		846	infocmp rxvt-unicode | ssh $REMOTE "cat >/tmp/ti && tic /tmp/ti"
		847
		848	... or by installing rxvt-unicode normally on the remote system,
		849
		850	If you cannot or do not want to do this, then you can simply set
		851	C<TERM=rxvt> or even C<TERM=xterm>, and live with the small number of
		852	problems arising, which includes wrong keymapping, less and different
		853	colours and some refresh errors in fullscreen applications. It's a nice
		854	quick-and-dirty workaround for rare cases, though.
		855
		856	If you always want to do this (and are fine with the consequences) you
		857	can either recompile rxvt-unicode with the desired TERM value or use a
		858	resource to set it:
		859
		860	URxvt.termName: rxvt
		861
		862	If you don't plan to use B<rxvt> (quite common...) you could also replace
		863	the rxvt terminfo file with the rxvt-unicode one and use C<TERM=rxvt>.
		864
		865	=head3 C<tic> outputs some error when compiling the terminfo entry.
		866
		867	Most likely it's the empty definition for C<enacs=>. Just replace it by
		868	C<enacs=\E[0@> and try again.
		869
		870	=head3 C<bash>'s readline does not work correctly under @@URXVT_NAME@@.
		871
		872	See next entry.
		873
		874	=head3 I need a termcap file entry.
		875
		876	One reason you might want this is that some distributions or operating
		877	systems still compile some programs using the long-obsoleted termcap
		878	library (Fedora Core's bash is one example) and rely on a termcap entry
		879	for C<rxvt-unicode>.
		880
		881	You could use rxvt's termcap entry with reasonable results in many cases.
		882	You can also create a termcap entry by using terminfo's infocmp program
		883	like this:
		884
		885	infocmp -C rxvt-unicode
		886
		887	Or you could use this termcap entry, generated by the command above:
		888
		889	rxvt-unicode|rxvt-unicode terminal (X Window System):\
		890	:am:bw:eo:km:mi:ms:xn:xo:\
		891	:co#80:it#8:li#24:lm#0:\
		892	:AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\
		893	:K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\
		894	:RI=\E[%dC:SF=\E[%dS:SR=\E[%dT:UP=\E[%dA:ae=\E(B:al=\E[L:\
		895	:as=\E(0:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:\
		896	:cm=\E[%i%d;%dH:cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:\
		897	:dl=\E[M:do=^J:ec=\E[%dX:ei=\E[4l:ho=\E[H:\
		898	:i1=\E[?47l\E=\E[?1l:ic=\E[@:im=\E[4h:\
		899	:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\
		900	:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:k5=\E[15~:\
		901	:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:kD=\E[3~:\
		902	:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:kd=\EOB:ke=\E[?1l\E>:\
		903	:kh=\E[7~:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:ku=\EOA:le=^H:\
		904	:mb=\E[5m:md=\E[1m:me=\E[m\017:mr=\E[7m:nd=\E[C:rc=\E8:\
		905	:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
		906	:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\
		907	:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\
		908	:vs=\E[?25h:
		909
		910	=head3 Why does C<ls> no longer have coloured output?
		911
		912	The C<ls> in the GNU coreutils unfortunately doesn't use terminfo to
		913	decide whether a terminal has colour, but uses its own configuration
		914	file. Needless to say, C<rxvt-unicode> is not in its default file (among
		915	with most other terminals supporting colour). Either add:
		916
		917	TERM rxvt-unicode
		918
		919	to C</etc/DIR_COLORS> or simply add:
		920
		921	alias ls='ls --color=auto'
		922
		923	to your C<.profile> or C<.bashrc>.
		924
		925	=head3 Why doesn't vim/emacs etc. use the 88 colour mode?
		926
		927	See next entry.
		928
		929	=head3 Why doesn't vim/emacs etc. make use of italic?
		930
		931	See next entry.
		932
		933	=head3 Why are the secondary screen-related options not working properly?
		934
		935	Make sure you are using C<TERM=rxvt-unicode>. Some pre-packaged
		936	distributions (most notably Debian GNU/Linux) break rxvt-unicode
		937	by setting C<TERM> to C<rxvt>, which doesn't have these extra
		938	features. Unfortunately, some of these (most notably, again, Debian
		939	GNU/Linux) furthermore fail to even install the C<rxvt-unicode> terminfo
		940	file, so you will need to install it on your own (See the question B<When
		941	I log-in to another system it tells me about missing terminfo data?> on
		942	how to do this).
		943
		944
		945	=head2 Encoding / Locale / Input Method Issues
		946
		947	=head3 Rxvt-unicode does not seem to understand the selected encoding?
		948
		949	See next entry.
		950
		951	=head3 Unicode does not seem to work?
		952
		953	If you encounter strange problems like typing an accented character but
		954	getting two unrelated other characters or similar, or if program output is
		955	subtly garbled, then you should check your locale settings.
		956
		957	Rxvt-unicode must be started with the same C<LC_CTYPE> setting as the
		958	programs. Often rxvt-unicode is started in the C<C> locale, while the
		959	login script running within the rxvt-unicode window changes the locale to
		960	something else, e.g. C<en_GB.UTF-8>. Needless to say, this is not going to work.
		961
		962	The best thing is to fix your startup environment, as you will likely run
		963	into other problems. If nothing works you can try this in your .profile.
		964
		965	printf '\33]701;%s\007' "$LC_CTYPE"
		966
		967	If this doesn't work, then maybe you use a C<LC_CTYPE> specification not
		968	supported on your systems. Some systems have a C<locale> command which
		969	displays this (also, C<perl -e0> can be used to check locale settings, as
		970	it will complain loudly if it cannot set the locale). If it displays something
		971	like:
		972
		973	locale: Cannot set LC_CTYPE to default locale: ...
		974
		975	Then the locale you specified is not supported on your system.
		976
		977	If nothing works and you are sure that everything is set correctly then
		978	you will need to remember a little known fact: Some programs just don't
		979	support locales :(
		980
		981	=head3 How does rxvt-unicode determine the encoding to use?
		982
		983	See next entry.
		984
		985	=head3 Is there an option to switch encodings?
		986
		987	Unlike some other terminals, rxvt-unicode has no encoding switch, and no
		988	specific "utf-8" mode, such as xterm. In fact, it doesn't even know about
		989	UTF-8 or any other encodings with respect to terminal I/O.
		990
		991	The reasons is that there exists a perfectly fine mechanism for selecting
		992	the encoding, doing I/O and (most important) communicating this to all
		993	applications so everybody agrees on character properties such as width
		994	and code number. This mechanism is the I<locale>. Applications not using
		995	that info will have problems (for example, C<xterm> gets the width of
		996	characters wrong as it uses its own, locale-independent table under all
		997	locales).
		998
		999	Rxvt-unicode uses the C<LC_CTYPE> locale category to select encoding. All
		1000	programs doing the same (that is, most) will automatically agree in the
		1001	interpretation of characters.
		1002
		1003	Unfortunately, there is no system-independent way to select locales, nor
		1004	is there a standard on how locale specifiers will look like.
		1005
		1006	On most systems, the content of the C<LC_CTYPE> environment variable
		1007	contains an arbitrary string which corresponds to an already-installed
		1008	locale. Common names for locales are C<en_US.UTF-8>, C<de_DE.ISO-8859-15>,
		1009	C<ja_JP.EUC-JP>, i.e. C<language_country.encoding>, but other forms
		1010	(i.e. C<de> or C<german>) are also common.
		1011
		1012	Rxvt-unicode ignores all other locale categories, and except for
		1013	the encoding, ignores country or language-specific settings,
		1014	i.e. C<de_DE.UTF-8> and C<ja_JP.UTF-8> are the normally same to
		1015	rxvt-unicode.
		1016
		1017	If you want to use a specific encoding you have to make sure you start
		1018	rxvt-unicode with the correct C<LC_CTYPE> category.
		1019
		1020	=head3 Can I switch locales at runtime?
		1021
		1022	Yes, using an escape sequence. Try something like this, which sets
		1023	rxvt-unicode's idea of C<LC_CTYPE>.
		1024
		1025	printf '\33]701;%s\007' ja_JP.SJIS
		1026
		1027	See also the previous answer.
		1028
		1029	Sometimes this capability is rather handy when you want to work in
		1030	one locale (e.g. C<de_DE.UTF-8>) but some programs don't support it
		1031	(e.g. UTF-8). For example, I use this script to start C<xjdic>, which
		1032	first switches to a locale supported by xjdic and back later:
		1033
		1034	printf '\33]701;%s\007' ja_JP.SJIS
		1035	xjdic -js
		1036	printf '\33]701;%s\007' de_DE.UTF-8
		1037
		1038	You can also use xterm's C<luit> program, which usually works fine, except
		1039	for some locales where character width differs between program- and
		1040	rxvt-unicode-locales.
		1041
		1042	=head3 I have problems getting my input method working.
		1043
		1044	Try a search engine, as this is slightly different for every input method server.
		1045
		1046	Here is a checklist:
		1047
		1048	=over 4
		1049
		1050	=item - Make sure your locale I<and> the imLocale are supported on your OS.
		1051
		1052	Try C<locale -a> or check the documentation for your OS.
		1053
		1054	=item - Make sure your locale or imLocale matches a locale supported by your XIM.
		1055
		1056	For example, B<kinput2> does not support UTF-8 locales, you should use
		1057	C<ja_JP.EUC-JP> or equivalent.
		1058
		1059	=item - Make sure your XIM server is actually running.
		1060
		1061	=item - Make sure the C<XMODIFIERS> environment variable is set correctly when I<starting> rxvt-unicode.
		1062
		1063	When you want to use e.g. B<kinput2>, it must be set to
		1064	C<@im=kinput2>. For B<scim>, use C<@im=SCIM>. You can see what input
		1065	method servers are running with this command:
		1066
		1067	xprop -root XIM_SERVERS
		1068
		1069	=item
613		1070
614	=back	1071	=back
615		1072
616	=head1 SYNOPSIS	1073	=head3 My input method wants <some encoding> but I want UTF-8, what can I do?
617		1074
618	# set a new font set	1075	You can specify separate locales for the input method and the rest of the
619	printf '\33]50;%s\007' 9x15,xft:Kochi" Mincho"	1076	terminal, using the resource C<imlocale>:
620		1077
621	# change the locale and tell rxvt-unicode about it	1078	URxvt.imlocale: ja_JP.EUC-JP
622	export LC_CTYPE=ja_JP.EUC-JP; printf "\33]701;$LC_CTYPE\007"
623		1079
624	# set window title	1080	Now you can start your terminal with C<LC_CTYPE=ja_JP.UTF-8> and still
625	printf '\33]2;%s\007' "new window title"	1081	use your input method. Please note, however, that, depending on your Xlib
		1082	version, you may not be able to input characters outside C<EUC-JP> in a
		1083	normal way then, as your input method limits you.
626		1084
627	=head1 DESCRIPTION	1085	=head3 Rxvt-unicode crashes when the X Input Method changes or exits.
		1086
		1087	Unfortunately, this is unavoidable, as the XIM protocol is racy by
		1088	design. Applications can avoid some crashes at the expense of memory
		1089	leaks, and Input Methods can avoid some crashes by careful ordering at
		1090	exit time. B<kinput2> (and derived input methods) generally succeeds,
		1091	while B<SCIM> (or similar input methods) fails. In the end, however,
		1092	crashes cannot be completely avoided even if both sides cooperate.
		1093
		1094	So the only workaround is not to kill your Input Method Servers.
		1095
		1096
		1097	=head2 Operating Systems / Package Maintaining
		1098
		1099	=head3 I am using Debian GNU/Linux and have a problem...
		1100
		1101	The Debian GNU/Linux package of rxvt-unicode in sarge contains large
		1102	patches that considerably change the behaviour of rxvt-unicode (but
		1103	unfortunately this notice has been removed). Before reporting a bug to
		1104	the original rxvt-unicode author please download and install the genuine
		1105	version (L<http://software.schmorp.de#rxvt-unicode>) and try to reproduce
		1106	the problem. If you cannot, chances are that the problems are specific to
		1107	Debian GNU/Linux, in which case it should be reported via the Debian Bug
		1108	Tracking System (use C<reportbug> to report the bug).
		1109
		1110	For other problems that also affect the Debian package, you can and
		1111	probably should use the Debian BTS, too, because, after all, it's also a
		1112	bug in the Debian version and it serves as a reminder for other users that
		1113	might encounter the same issue.
		1114
		1115	=head3 I am maintaining rxvt-unicode for distribution/OS XXX, any recommendation?
		1116
		1117	You should build one binary with the default options. F<configure>
		1118	now enables most useful options, and the trend goes to making them
		1119	runtime-switchable, too, so there is usually no drawback to enabling them,
		1120	except higher disk and possibly memory usage. The perl interpreter should
		1121	be enabled, as important functionality (menus, selection, likely more in
		1122	the future) depends on it.
		1123
		1124	You should not overwrite the C<perl-ext-common> snd C<perl-ext> resources
		1125	system-wide (except maybe with C<defaults>). This will result in useful
		1126	behaviour. If your distribution aims at low memory, add an empty
		1127	C<perl-ext-common> resource to the app-defaults file. This will keep the
		1128	perl interpreter disabled until the user enables it.
		1129
		1130	If you can/want build more binaries, I recommend building a minimal
		1131	one with C<--disable-everything> (very useful) and a maximal one with
		1132	C<--enable-everything> (less useful, it will be very big due to a lot of
		1133	encodings built-in that increase download times and are rarely used).
		1134
		1135	=head3 I need to make it setuid/setgid to support utmp/ptys on my OS, is this safe?
		1136
		1137	It should be, starting with release 7.1. You are encouraged to properly
		1138	install urxvt with privileges necessary for your OS now.
		1139
		1140	When rxvt-unicode detects that it runs setuid or setgid, it will fork
		1141	into a helper process for privileged operations (pty handling on some
		1142	systems, utmp/wtmp/lastlog handling on others) and drop privileges
		1143	immediately. This is much safer than most other terminals that keep
		1144	privileges while running (but is more relevant to urxvt, as it contains
		1145	things as perl interpreters, which might be "helpful" to attackers).
		1146
		1147	This forking is done as the very first within main(), which is very early
		1148	and reduces possible bugs to initialisation code run before main(), or
		1149	things like the dynamic loader of your system, which should result in very
		1150	little risk.
		1151
		1152	=head3 On Solaris 9, many line-drawing characters are too wide.
		1153
		1154	Seems to be a known bug, read
		1155	L<http://nixdoc.net/files/forum/about34198.html>. Some people use the
		1156	following ugly workaround to get non-double-wide-characters working:
		1157
		1158	#define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)
		1159
		1160	=head3 I am on FreeBSD and rxvt-unicode does not seem to work at all.
		1161
		1162	Rxvt-unicode requires the symbol C<__STDC_ISO_10646__> to be defined
		1163	in your compile environment, or an implementation that implements it,
		1164	whether it defines the symbol or not. C<__STDC_ISO_10646__> requires that
		1165	B<wchar_t> is represented as unicode.
		1166
		1167	As you might have guessed, FreeBSD does neither define this symbol nor
		1168	does it support it. Instead, it uses its own internal representation of
		1169	B<wchar_t>. This is, of course, completely fine with respect to standards.
		1170
		1171	However, that means rxvt-unicode only works in C<POSIX>, C<ISO-8859-1> and
		1172	C<UTF-8> locales under FreeBSD (which all use Unicode as B<wchar_t>.
		1173
		1174	C<__STDC_ISO_10646__> is the only sane way to support multi-language
		1175	apps in an OS, as using a locale-dependent (and non-standardized)
		1176	representation of B<wchar_t> makes it impossible to convert between
		1177	B<wchar_t> (as used by X11 and your applications) and any other encoding
		1178	without implementing OS-specific-wrappers for each and every locale. There
		1179	simply are no APIs to convert B<wchar_t> into anything except the current
		1180	locale encoding.
		1181
		1182	Some applications (such as the formidable B<mlterm>) work around this
		1183	by carrying their own replacement functions for character set handling
		1184	with them, and either implementing OS-dependent hacks or doing multiple
		1185	conversions (which is slow and unreliable in case the OS implements
		1186	encodings slightly different than the terminal emulator).
		1187
		1188	The rxvt-unicode author insists that the right way to fix this is in the
		1189	system libraries once and for all, instead of forcing every app to carry
		1190	complete replacements for them :)
		1191
		1192	=head3 I use Solaris 9 and it doesn't compile/work/etc.
		1193
		1194	Try the diff in F<doc/solaris9.patch> as a base. It fixes the worst
		1195	problems with C<wcwidth> and a compile problem.
		1196
		1197	=head3 How can I use rxvt-unicode under cygwin?
		1198
		1199	rxvt-unicode should compile and run out of the box on cygwin, using
		1200	the X11 libraries that come with cygwin. libW11 emulation is no
		1201	longer supported (and makes no sense, either, as it only supported a
		1202	single font). I recommend starting the X-server in C<-multiwindow> or
		1203	C<-rootless> mode instead, which will result in similar look&feel as the
		1204	old libW11 emulation.
		1205
		1206	At the time of this writing, cygwin didn't seem to support any multi-byte
		1207	encodings (you might try C<LC_CTYPE=C-UTF-8>), so you are likely limited
		1208	to 8-bit encodings.
		1209
		1210	=head1 RXVT-UNICODE TECHNICAL REFERENCE
628		1211
629	The rest of this document describes various technical aspects of	1212	The rest of this document describes various technical aspects of
630	B<rxvt-unicode>. First the description of supported command sequences,	1213	B<rxvt-unicode>. First the description of supported command sequences,
631	followed by menu and pixmap support and last by a description of all	1214	followed by pixmap support and last by a description of all features
632	features selectable at C<configure> time.	1215	selectable at C<configure> time.
633		1216
634	=head1 RXVT TECHNICAL REFERENCE
635
636	=head1 Definitions	1217	=head2 Definitions
637		1218
638	=over 4	1219	=over 4
639		1220
640	=item B<< C<c> >>	1221	=item B<< C<c> >>
641		1222
…		…
659		1240
660	A text parameter composed of printable characters.	1241	A text parameter composed of printable characters.
661		1242
662	=back	1243	=back
663		1244
664	=head1 Values	1245	=head2 Values
665		1246
666	=over 4	1247	=over 4
667		1248
668	=item B<< C<ENQ> >>	1249	=item B<< C<ENQ> >>
669		1250
…		…
712		1293
713	Space Character	1294	Space Character
714		1295
715	=back	1296	=back
716		1297
717	=head1 Escape Sequences	1298	=head2 Escape Sequences
718		1299
719	=over 4	1300	=over 4
720		1301
721	=item B<< C<ESC # 8> >>	1302	=item B<< C<ESC # 8> >>
722		1303
…		…
768	Single Shift Select of G3 Character Set (SS3): affects next character	1349	Single Shift Select of G3 Character Set (SS3): affects next character
769	only I<unimplemented>	1350	only I<unimplemented>
770		1351
771	=item B<< C<ESC Z> >>	1352	=item B<< C<ESC Z> >>
772		1353
773	Obsolete form of returns: B<< C<ESC[?1;2C> >> I<rxvt-unicode compile-time option>	1354	Obsolete form of returns: B<< C<ESC [ ? 1 ; 2 C> >> I<rxvt-unicode compile-time option>
774		1355
775	=item B<< C<ESC c> >>	1356	=item B<< C<ESC c> >>
776		1357
777	Full reset (RIS)	1358	Full reset (RIS)
778		1359
…		…
782		1363
783	=item B<< C<ESC o> >>	1364	=item B<< C<ESC o> >>
784		1365
785	Invoke the G3 Character Set (LS3)	1366	Invoke the G3 Character Set (LS3)
786		1367
787	=item B<< C<ESC> ( C> >>	1368	=item B<< C<ESC ( C> >>
788		1369
789	Designate G0 Character Set (ISO 2022), see below for values of C<C>.	1370	Designate G0 Character Set (ISO 2022), see below for values of C<C>.
790		1371
791	=item B<< C<ESC> ) C> >>	1372	=item B<< C<ESC ) C> >>
792		1373
793	Designate G1 Character Set (ISO 2022), see below for values of C<C>.	1374	Designate G1 Character Set (ISO 2022), see below for values of C<C>.
794		1375
795	=item B<< C<ESC * C> >>	1376	=item B<< C<ESC * C> >>
796		1377
…		…
820		1401
821	=back	1402	=back
822		1403
823	X<CSI>	1404	X<CSI>
824		1405
825	=head1 CSI (Command Sequence Introducer) Sequences	1406	=head2 CSI (Command Sequence Introducer) Sequences
826		1407
827	=over 4	1408	=over 4
828		1409
829	=item B<< C<ESC [ Ps @> >>	1410	=item B<< C<ESC [ Ps @> >>
830		1411
…		…
937		1518
938	=item B<< C<ESC [ Ps c> >>	1519	=item B<< C<ESC [ Ps c> >>
939		1520
940	Send Device Attributes (DA)	1521	Send Device Attributes (DA)
941	B<< C<Ps = 0> >> (or omitted): request attributes from terminal	1522	B<< C<Ps = 0> >> (or omitted): request attributes from terminal
942	returns: B<< C<ESC[?1;2c> >> (``I am a VT100 with Advanced Video	1523	returns: B<< C<ESC [ ? 1 ; 2 c> >> (``I am a VT100 with Advanced Video
943	Option'')	1524	Option'')
944		1525
945	=item B<< C<ESC [ Ps d> >>	1526	=item B<< C<ESC [ Ps d> >>
946		1527
947	Cursor to Line B<< C<Ps> >> (VPA)	1528	Cursor to Line B<< C<Ps> >> (VPA)
…		…
1077	B<< C<Ps = 4> >> B<< C<ESC [ 4 ; H ; W t> >> Resize to WxH pixels	1658	B<< C<Ps = 4> >> B<< C<ESC [ 4 ; H ; W t> >> Resize to WxH pixels
1078	B<< C<Ps = 5> >> Raise window	1659	B<< C<Ps = 5> >> Raise window
1079	B<< C<Ps = 6> >> Lower window	1660	B<< C<Ps = 6> >> Lower window
1080	B<< C<Ps = 7> >> Refresh screen once	1661	B<< C<Ps = 7> >> Refresh screen once
1081	B<< C<Ps = 8> >> B<< C<ESC [ 8 ; R ; C t> >> Resize to R rows and C columns	1662	B<< C<Ps = 8> >> B<< C<ESC [ 8 ; R ; C t> >> Resize to R rows and C columns
1082	B<< C<Ps = 11> >> Report window state (responds with C<Ps = 1> or C<Ps = 2>	1663	B<< C<Ps = 11> >> Report window state (responds with C<Ps = 1> or C<Ps = 2>)
1083	B<< C<Ps = 13> >> Report window position (responds with C<Ps = 3>)	1664	B<< C<Ps = 13> >> Report window position (responds with C<Ps = 3>)
1084	B<< C<Ps = 14> >> Report window pixel size (responds with C<Ps = 4>)	1665	B<< C<Ps = 14> >> Report window pixel size (responds with C<Ps = 4>)
1085	B<< C<Ps = 18> >> Report window text size (responds with C<Ps = 7>)	1666	B<< C<Ps = 18> >> Report window text size (responds with C<Ps = 7>)
1086	B<< C<Ps = 19> >> Currently the same as C<Ps = 18>, but responds with C<Ps = 9>	1667	B<< C<Ps = 19> >> Currently the same as C<Ps = 18>, but responds with C<Ps = 9>
1087	B<< C<Ps = 20> >> Reports icon label (B<< C<ESC ] L NAME \234> >>)	1668	B<< C<Ps = 20> >> Reports icon label (B<< C<ESC ] L NAME \234> >>)
…		…
1100		1681
1101	=back	1682	=back
1102		1683
1103	X<PrivateModes>	1684	X<PrivateModes>
1104		1685
1105	=head1 DEC Private Modes	1686	=head2 DEC Private Modes
1106		1687
1107	=over 4	1688	=over 4
1108		1689
1109	=item B<< C<ESC [ ? Pm h> >>	1690	=item B<< C<ESC [ ? Pm h> >>
1110		1691
…		…
1126		1707
1127	Toggle DEC Private Mode Values (rxvt extension). I<where>	1708	Toggle DEC Private Mode Values (rxvt extension). I<where>
1128		1709
1129	=over 4	1710	=over 4
1130		1711
1131	=item B<< C<Ps = 1> >> (DECCKM)	1712	=item B<< C<Pm = 1> >> (DECCKM)
1132		1713
1133	=begin table	1714	=begin table
1134		1715
1135	B<< C<h> >> Application Cursor Keys	1716	B<< C<h> >> Application Cursor Keys
1136	B<< C<l> >> Normal Cursor Keys	1717	B<< C<l> >> Normal Cursor Keys
1137		1718
1138	=end table	1719	=end table
1139		1720
1140	=item B<< C<Ps = 2> >> (ANSI/VT52 mode)	1721	=item B<< C<Pm = 2> >> (ANSI/VT52 mode)
1141		1722
1142	=begin table	1723	=begin table
1143		1724
1144	B<< C<h> >> Enter VT52 mode	1725	B<< C<h> >> Enter VT52 mode
1145	B<< C<l> >> Enter VT52 mode	1726	B<< C<l> >> Enter VT52 mode
1146		1727
1147	=end table	1728	=end table
1148		1729
1149	=item B<< C<Ps = 3> >>	1730	=item B<< C<Pm = 3> >>
1150		1731
1151	=begin table	1732	=begin table
1152		1733
1153	B<< C<h> >> 132 Column Mode (DECCOLM)	1734	B<< C<h> >> 132 Column Mode (DECCOLM)
1154	B<< C<l> >> 80 Column Mode (DECCOLM)	1735	B<< C<l> >> 80 Column Mode (DECCOLM)
1155		1736
1156	=end table	1737	=end table
1157		1738
1158	=item B<< C<Ps = 4> >>	1739	=item B<< C<Pm = 4> >>
1159		1740
1160	=begin table	1741	=begin table
1161		1742
1162	B<< C<h> >> Smooth (Slow) Scroll (DECSCLM)	1743	B<< C<h> >> Smooth (Slow) Scroll (DECSCLM)
1163	B<< C<l> >> Jump (Fast) Scroll (DECSCLM)	1744	B<< C<l> >> Jump (Fast) Scroll (DECSCLM)
1164		1745
1165	=end table	1746	=end table
1166		1747
1167	=item B<< C<Ps = 5> >>	1748	=item B<< C<Pm = 5> >>
1168		1749
1169	=begin table	1750	=begin table
1170		1751
1171	B<< C<h> >> Reverse Video (DECSCNM)	1752	B<< C<h> >> Reverse Video (DECSCNM)
1172	B<< C<l> >> Normal Video (DECSCNM)	1753	B<< C<l> >> Normal Video (DECSCNM)
1173		1754
1174	=end table	1755	=end table
1175		1756
1176	=item B<< C<Ps = 6> >>	1757	=item B<< C<Pm = 6> >>
1177		1758
1178	=begin table	1759	=begin table
1179		1760
1180	B<< C<h> >> Origin Mode (DECOM)	1761	B<< C<h> >> Origin Mode (DECOM)
1181	B<< C<l> >> Normal Cursor Mode (DECOM)	1762	B<< C<l> >> Normal Cursor Mode (DECOM)
1182		1763
1183	=end table	1764	=end table
1184		1765
1185	=item B<< C<Ps = 7> >>	1766	=item B<< C<Pm = 7> >>
1186		1767
1187	=begin table	1768	=begin table
1188		1769
1189	B<< C<h> >> Wraparound Mode (DECAWM)	1770	B<< C<h> >> Wraparound Mode (DECAWM)
1190	B<< C<l> >> No Wraparound Mode (DECAWM)	1771	B<< C<l> >> No Wraparound Mode (DECAWM)
1191		1772
1192	=end table	1773	=end table
1193		1774
1194	=item B<< C<Ps = 8> >> I<unimplemented>	1775	=item B<< C<Pm = 8> >> I<unimplemented>
1195		1776
1196	=begin table	1777	=begin table
1197		1778
1198	B<< C<h> >> Auto-repeat Keys (DECARM)	1779	B<< C<h> >> Auto-repeat Keys (DECARM)
1199	B<< C<l> >> No Auto-repeat Keys (DECARM)	1780	B<< C<l> >> No Auto-repeat Keys (DECARM)
1200		1781
1201	=end table	1782	=end table
1202		1783
1203	=item B<< C<Ps = 9> >> X10 XTerm	1784	=item B<< C<Pm = 9> >> X10 XTerm
1204		1785
1205	=begin table	1786	=begin table
1206		1787
1207	B<< C<h> >> Send Mouse X & Y on button press.	1788	B<< C<h> >> Send Mouse X & Y on button press.
1208	B<< C<l> >> No mouse reporting.	1789	B<< C<l> >> No mouse reporting.
1209		1790
1210	=end table	1791	=end table
1211		1792
1212	=item B<< C<Ps = 10> >> (B<rxvt>)
1213
1214	=begin table
1215
1216	B<< C<h> >> menuBar visible
1217	B<< C<l> >> menuBar invisible
1218
1219	=end table
1220
1221	=item B<< C<Ps = 25> >>	1793	=item B<< C<Pm = 25> >>
1222		1794
1223	=begin table	1795	=begin table
1224		1796
1225	B<< C<h> >> Visible cursor {cnorm/cvvis}	1797	B<< C<h> >> Visible cursor {cnorm/cvvis}
1226	B<< C<l> >> Invisible cursor {civis}	1798	B<< C<l> >> Invisible cursor {civis}
1227		1799
1228	=end table	1800	=end table
1229		1801
1230	=item B<< C<Ps = 30> >>	1802	=item B<< C<Pm = 30> >>
1231		1803
1232	=begin table	1804	=begin table
1233		1805
1234	B<< C<h> >> scrollBar visisble	1806	B<< C<h> >> scrollBar visisble
1235	B<< C<l> >> scrollBar invisisble	1807	B<< C<l> >> scrollBar invisisble
1236		1808
1237	=end table	1809	=end table
1238		1810
1239	=item B<< C<Ps = 35> >> (B<rxvt>)	1811	=item B<< C<Pm = 35> >> (B<rxvt>)
1240		1812
1241	=begin table	1813	=begin table
1242		1814
1243	B<< C<h> >> Allow XTerm Shift+key sequences	1815	B<< C<h> >> Allow XTerm Shift+key sequences
1244	B<< C<l> >> Disallow XTerm Shift+key sequences	1816	B<< C<l> >> Disallow XTerm Shift+key sequences
1245		1817
1246	=end table	1818	=end table
1247		1819
1248	=item B<< C<Ps = 38> >> I<unimplemented>	1820	=item B<< C<Pm = 38> >> I<unimplemented>
1249		1821
1250	Enter Tektronix Mode (DECTEK)	1822	Enter Tektronix Mode (DECTEK)
1251		1823
1252	=item B<< C<Ps = 40> >>	1824	=item B<< C<Pm = 40> >>
1253		1825
1254	=begin table	1826	=begin table
1255		1827
1256	B<< C<h> >> Allow 80/132 Mode	1828	B<< C<h> >> Allow 80/132 Mode
1257	B<< C<l> >> Disallow 80/132 Mode	1829	B<< C<l> >> Disallow 80/132 Mode
1258		1830
1259	=end table	1831	=end table
1260		1832
1261	=item B<< C<Ps = 44> >> I<unimplemented>	1833	=item B<< C<Pm = 44> >> I<unimplemented>
1262		1834
1263	=begin table	1835	=begin table
1264		1836
1265	B<< C<h> >> Turn On Margin Bell	1837	B<< C<h> >> Turn On Margin Bell
1266	B<< C<l> >> Turn Off Margin Bell	1838	B<< C<l> >> Turn Off Margin Bell
1267		1839
1268	=end table	1840	=end table
1269		1841
1270	=item B<< C<Ps = 45> >> I<unimplemented>	1842	=item B<< C<Pm = 45> >> I<unimplemented>
1271		1843
1272	=begin table	1844	=begin table
1273		1845
1274	B<< C<h> >> Reverse-wraparound Mode	1846	B<< C<h> >> Reverse-wraparound Mode
1275	B<< C<l> >> No Reverse-wraparound Mode	1847	B<< C<l> >> No Reverse-wraparound Mode
1276		1848
1277	=end table	1849	=end table
1278		1850
1279	=item B<< C<Ps = 46> >> I<unimplemented>	1851	=item B<< C<Pm = 46> >> I<unimplemented>
1280		1852
1281	=item B<< C<Ps = 47> >>	1853	=item B<< C<Pm = 47> >>
1282		1854
1283	=begin table	1855	=begin table
1284		1856
1285	B<< C<h> >> Use Alternate Screen Buffer	1857	B<< C<h> >> Use Alternate Screen Buffer
1286	B<< C<l> >> Use Normal Screen Buffer	1858	B<< C<l> >> Use Normal Screen Buffer
1287		1859
1288	=end table	1860	=end table
1289		1861
1290	X<Priv66>	1862	X<Priv66>
1291		1863
1292	=item B<< C<Ps = 66> >>	1864	=item B<< C<Pm = 66> >>
1293		1865
1294	=begin table	1866	=begin table
1295		1867
1296	B<< C<h> >> Application Keypad (DECPAM) == C<ESC =>	1868	B<< C<h> >> Application Keypad (DECPAM) == C<ESC =>
1297	B<< C<l> >> Normal Keypad (DECPNM) == C<< ESC > >>	1869	B<< C<l> >> Normal Keypad (DECPNM) == C<< ESC > >>
1298		1870
1299	=end table	1871	=end table
1300		1872
1301	=item B<< C<Ps = 67> >>	1873	=item B<< C<Pm = 67> >>
1302		1874
1303	=begin table	1875	=begin table
1304		1876
1305	B<< C<h> >> Backspace key sends B<< C<BS> (DECBKM) >>	1877	B<< C<h> >> Backspace key sends B<< C<BS> (DECBKM) >>
1306	B<< C<l> >> Backspace key sends B<< C<DEL> >>	1878	B<< C<l> >> Backspace key sends B<< C<DEL> >>
1307		1879
1308	=end table	1880	=end table
1309		1881
1310	=item B<< C<Ps = 1000> >> (X11 XTerm)	1882	=item B<< C<Pm = 1000> >> (X11 XTerm)
1311		1883
1312	=begin table	1884	=begin table
1313		1885
1314	B<< C<h> >> Send Mouse X & Y on button press and release.	1886	B<< C<h> >> Send Mouse X & Y on button press and release.
1315	B<< C<l> >> No mouse reporting.	1887	B<< C<l> >> No mouse reporting.
1316		1888
1317	=end table	1889	=end table
1318		1890
1319	=item B<< C<Ps = 1001> >> (X11 XTerm) I<unimplemented>	1891	=item B<< C<Pm = 1001> >> (X11 XTerm) I<unimplemented>
1320		1892
1321	=begin table	1893	=begin table
1322		1894
1323	B<< C<h> >> Use Hilite Mouse Tracking.	1895	B<< C<h> >> Use Hilite Mouse Tracking.
1324	B<< C<l> >> No mouse reporting.	1896	B<< C<l> >> No mouse reporting.
1325		1897
1326	=end table	1898	=end table
1327		1899
1328	=item B<< C<Ps = 1010> >> (B<rxvt>)	1900	=item B<< C<Pm = 1010> >> (B<rxvt>)
1329		1901
1330	=begin table	1902	=begin table
1331		1903
1332	B<< C<h> >> Don't scroll to bottom on TTY output	1904	B<< C<h> >> Don't scroll to bottom on TTY output
1333	B<< C<l> >> Scroll to bottom on TTY output	1905	B<< C<l> >> Scroll to bottom on TTY output
1334		1906
1335	=end table	1907	=end table
1336		1908
1337	=item B<< C<Ps = 1011> >> (B<rxvt>)	1909	=item B<< C<Pm = 1011> >> (B<rxvt>)
1338		1910
1339	=begin table	1911	=begin table
1340		1912
1341	B<< C<h> >> Scroll to bottom when a key is pressed	1913	B<< C<h> >> Scroll to bottom when a key is pressed
1342	B<< C<l> >> Don't scroll to bottom when a key is pressed	1914	B<< C<l> >> Don't scroll to bottom when a key is pressed
1343		1915
1344	=end table	1916	=end table
1345		1917
		1918	=item B<< C<Pm = 1021> >> (B<rxvt>)
		1919
		1920	=begin table
		1921
		1922	B<< C<h> >> Bold/italic implies high intensity (see option B<-is>)
		1923	B<< C<l> >> Font styles have no effect on intensity (Compile styles)
		1924
		1925	=end table
		1926
1346	=item B<< C<Ps = 1047> >>	1927	=item B<< C<Pm = 1047> >>
1347		1928
1348	=begin table	1929	=begin table
1349		1930
1350	B<< C<h> >> Use Alternate Screen Buffer	1931	B<< C<h> >> Use Alternate Screen Buffer
1351	B<< C<l> >> Use Normal Screen Buffer - clear Alternate Screen Buffer if returning from it	1932	B<< C<l> >> Use Normal Screen Buffer - clear Alternate Screen Buffer if returning from it
1352		1933
1353	=end table	1934	=end table
1354		1935
1355	=item B<< C<Ps = 1048> >>	1936	=item B<< C<Pm = 1048> >>
1356		1937
1357	=begin table	1938	=begin table
1358		1939
1359	B<< C<h> >> Save cursor position	1940	B<< C<h> >> Save cursor position
1360	B<< C<l> >> Restore cursor position	1941	B<< C<l> >> Restore cursor position
1361		1942
1362	=end table	1943	=end table
1363		1944
1364	=item B<< C<Ps = 1049> >>	1945	=item B<< C<Pm = 1049> >>
1365		1946
1366	=begin table	1947	=begin table
1367		1948
1368	B<< C<h> >> Use Alternate Screen Buffer - clear Alternate Screen Buffer if switching to it	1949	B<< C<h> >> Use Alternate Screen Buffer - clear Alternate Screen Buffer if switching to it
1369	B<< C<l> >> Use Normal Screen Buffer	1950	B<< C<l> >> Use Normal Screen Buffer
…		…
1374		1955
1375	=back	1956	=back
1376		1957
1377	X<XTerm>	1958	X<XTerm>
1378		1959
1379	=head1 XTerm Operating System Commands	1960	=head2 XTerm Operating System Commands
1380		1961
1381	=over 4	1962	=over 4
1382		1963
1383	=item B<< C<ESC ] Ps;Pt ST> >>	1964	=item B<< C<ESC ] Ps;Pt ST> >>
1384		1965
…		…
1396	B<< C<Ps = 10> >> Change colour of text foreground to B<< C<Pt> >> B<(NB: may change in future)>	1977	B<< C<Ps = 10> >> Change colour of text foreground to B<< C<Pt> >> B<(NB: may change in future)>
1397	B<< C<Ps = 11> >> Change colour of text background to B<< C<Pt> >> B<(NB: may change in future)>	1978	B<< C<Ps = 11> >> Change colour of text background to B<< C<Pt> >> B<(NB: may change in future)>
1398	B<< C<Ps = 12> >> Change colour of text cursor foreground to B<< C<Pt> >>	1979	B<< C<Ps = 12> >> Change colour of text cursor foreground to B<< C<Pt> >>
1399	B<< C<Ps = 13> >> Change colour of mouse foreground to B<< C<Pt> >>	1980	B<< C<Ps = 13> >> Change colour of mouse foreground to B<< C<Pt> >>
1400	B<< C<Ps = 17> >> Change colour of highlight characters to B<< C<Pt> >>	1981	B<< C<Ps = 17> >> Change colour of highlight characters to B<< C<Pt> >>
1401	B<< C<Ps = 18> >> Change colour of bold characters to B<< C<Pt> >>	1982	B<< C<Ps = 18> >> Change colour of bold characters to B<< C<Pt> >> [deprecated, see 706]
1402	B<< C<Ps = 19> >> Change colour of underlined characters to B<< C<Pt> >>	1983	B<< C<Ps = 19> >> Change colour of underlined characters to B<< C<Pt> >> [deprecated, see 707]
		1984	B<< C<Ps = 20> >> Change background pixmap parameters (see section XPM) (Compile XPM).
1403	B<< C<Ps = 20> >> Change default background to B<< C<Pt> >>	1985	B<< C<Ps = 39> >> Change default foreground colour to B<< C<Pt> >>.
1404	B<< C<Ps = 39> >> Change default foreground colour to B<< C<Pt> >> I<rxvt compile-time option>
1405	B<< C<Ps = 46> >> Change Log File to B<< C<Pt> >> I<unimplemented>	1986	B<< C<Ps = 46> >> Change Log File to B<< C<Pt> >> I<unimplemented>
1406	B<< C<Ps = 49> >> Change default background colour to B<< C<Pt> >> I<rxvt compile-time option>	1987	B<< C<Ps = 49> >> Change default background colour to B<< C<Pt> >>.
1407	B<< C<Ps = 50> >> Set fontset to B<< C<Pt> >>, with the following special values of B<< C<Pt> >> (B<rxvt>) B<< C<#+n> >> change up B<< C<n> >> B<< C<#-n> >> change down B<< C<n> >> if B<< C<n> >> is missing of 0, a value of 1 is used I<empty> change to font0 B<< C<n> >> change to font B<< C<n> >>	1988	B<< C<Ps = 50> >> Set fontset to B<< C<Pt> >>, with the following special values of B<< C<Pt> >> (B<rxvt>) B<< C<#+n> >> change up B<< C<n> >> B<< C<#-n> >> change down B<< C<n> >> if B<< C<n> >> is missing of 0, a value of 1 is used I<empty> change to font0 B<< C<n> >> change to font B<< C<n> >>
1408	B<< C<Ps = 55> >> Log all scrollback buffer and all of screen to B<< C<Pt> >>	1989	B<< C<Ps = 55> >> Log all scrollback buffer and all of screen to B<< C<Pt> >>
1409	B<< C<Ps = 701> >> Change current locale to B<< C<Pt> >>, or, if B<< C<Pt> >> is B<< C<?> >>, return the current locale (@@RXVT_NAME@@ extension)	1990	B<< C<Ps = 701> >> Change current locale to B<< C<Pt> >>, or, if B<< C<Pt> >> is B<< C<?> >>, return the current locale (Compile frills).
1410	B<< C<Ps = 703> >> Menubar command B<< C<Pt> >> I<rxvt compile-time option> (rxvt-unicode extension)	1991	B<< C<Ps = 702> >> Request version if B<< C<Pt> >> is B<< C<?> >>, returning C<rxvt-unicode>, the resource name, the major and minor version numbers, e.g. C<ESC ] 702 ; rxvt-unicode ; urxvt ; 7 ; 4 ST>.
1411	B<< C<Ps = 704> >> Change colour of italic characters to B<< C<Pt> >>	1992	B<< C<Ps = 704> >> Change colour of italic characters to B<< C<Pt> >>
1412	B<< C<Ps = 705> >> Change background pixmap tint colour to B<< C<Pt> >>	1993	B<< C<Ps = 705> >> Change background pixmap tint colour to B<< C<Pt> >> (Compile transparency).
		1994	B<< C<Ps = 706> >> Change colour of bold characters to B<< C<Pt> >>
		1995	B<< C<Ps = 707> >> Change colour of underlined characters to B<< C<Pt> >>
1413	B<< C<Ps = 710> >> Set normal fontset to B<< C<Pt> >>. Same as C<Ps = 50>.	1996	B<< C<Ps = 710> >> Set normal fontset to B<< C<Pt> >>. Same as C<Ps = 50>.
1414	B<< C<Ps = 711> >> Set bold fontset to B<< C<Pt> >>. Similar to C<Ps = 50>.	1997	B<< C<Ps = 711> >> Set bold fontset to B<< C<Pt> >>. Similar to C<Ps = 50> (Compile styles).
1415	B<< C<Ps = 712> >> Set italic fontset to B<< C<Pt> >>. Similar to C<Ps = 50>.	1998	B<< C<Ps = 712> >> Set italic fontset to B<< C<Pt> >>. Similar to C<Ps = 50> (Compile styles).
1416	B<< C<Ps = 713> >> Set bold-italic fontset to B<< C<Pt> >>. Similar to C<Ps = 50>.	1999	B<< C<Ps = 713> >> Set bold-italic fontset to B<< C<Pt> >>. Similar to C<Ps = 50> (Compile styles).
		2000	B<< C<Ps = 720> >> Move viewing window up by B<< C<Pt> >> lines, or clear scrollback buffer if C<Pt = 0> (Compile frills).
		2001	B<< C<Ps = 721> >> Move viewing window down by B<< C<Pt> >> lines, or clear scrollback buffer if C<Pt = 0> (Compile frills).
		2002	B<< C<Ps = 777> >> Call the perl extension with the given string, which should be of the form C<extension:parameters> (Compile perl).
1417		2003
1418	=end table	2004	=end table
1419		2005
1420	=back	2006	=back
1421
1422	X<menuBar>
1423
1424	=head1 menuBar
1425
1426	B<< The exact syntax used is I<almost> solidified. >>
1427	In the menus, B<DON'T> try to use menuBar commands that add or remove a
1428	menuBar.
1429
1430	Note that in all of the commands, the B<< I</path/> >> I<cannot> be
1431	omitted: use B<./> to specify a menu relative to the current menu.
1432
1433	=head2 Overview of menuBar operation
1434
1435	For the menuBar XTerm escape sequence C<ESC ] 703 ; Pt ST>, the syntax
1436	of C<Pt> can be used for a variety of tasks:
1437
1438	At the top level is the current menuBar which is a member of a circular
1439	linked-list of other such menuBars.
1440
1441	The menuBar acts as a parent for the various drop-down menus, which in
1442	turn, may have labels, separator lines, menuItems and subMenus.
1443
1444	The menuItems are the useful bits: you can use them to mimic keyboard
1445	input or even to send text or escape sequences back to rxvt.
1446
1447	The menuBar syntax is intended to provide a simple yet robust method of
1448	constructing and manipulating menus and navigating through the
1449	menuBars.
1450
1451	The first step is to use the tag B<< [menu:I<name>] >> which creates
1452	the menuBar called I<name> and allows access. You may now or menus,
1453	subMenus, and menuItems. Finally, use the tag B<[done]> to set the
1454	menuBar access as B<readonly> to prevent accidental corruption of the
1455	menus. To re-access the current menuBar for alterations, use the tag
1456	B<[menu]>, make the alterations and then use B<[done]>
1457
1458	X<menuBarCommands>
1459
1460	=head2 Commands
1461
1462	=over 4
1463
1464	=item B<< [menu:+I<name>] >>
1465
1466	access the named menuBar for creation or alteration. If a new menuBar
1467	is created, it is called I<name> (max of 15 chars) and the current
1468	menuBar is pushed onto the stack
1469
1470	=item B<[menu]>
1471
1472	access the current menuBar for alteration
1473
1474	=item B<< [title:+I<string>] >>
1475
1476	set the current menuBar's title to I<string>, which may contain the
1477	following format specifiers:
1478	B<%%> : literal B<%> character
1479	B<%n> : rxvt name (as per the B<-name> command-line option)
1480	B<%v> : rxvt version
1481
1482	=item B<[done]>
1483
1484	set menuBar access as B<readonly>.
1485	End-of-file tag for B<< [read:+I<file>] >> operations.
1486
1487	=item B<< [read:+I<file>] >>
1488
1489	read menu commands directly from I<file> (extension ".menu" will be
1490	appended if required.) Start reading at a line with B<[menu]> or B<<
1491	[menu:+I<name> >> and continuing until B<[done]> is encountered.
1492
1493	Blank and comment lines (starting with B<#>) are ignored. Actually,
1494	since any invalid menu commands are also ignored, almost anything could
1495	be construed as a comment line, but this may be tightened up in the
1496	future ... so don't count on it!.
1497
1498	=item B<< [read:+I<file>;+I<name>] >>
1499
1500	The same as B<< [read:+I<file>] >>, but start reading at a line with
1501	B<< [menu:+I<name>] >> and continuing until B<< [done:+I<name>] >> or
1502	B<[done]> is encountered.
1503
1504	=item B<[dump]>
1505
1506	dump all menuBars to the file B</tmp/rxvt-PID> in a format suitable for
1507	later rereading.
1508
1509	=item B<[rm:name]>
1510
1511	remove the named menuBar
1512
1513	=item B<[rm] [rm:]>
1514
1515	remove the current menuBar
1516
1517	=item B<[rm*] [rm:*]>
1518
1519	remove all menuBars
1520
1521	=item B<[swap]>
1522
1523	swap the top two menuBars
1524
1525	=item B<[prev]>
1526
1527	access the previous menuBar
1528
1529	=item B<[next]>
1530
1531	access the next menuBar
1532
1533	=item B<[show]>
1534
1535	Enable display of the menuBar
1536
1537	=item B<[hide]>
1538
1539	Disable display of the menuBar
1540
1541	=item B<< [pixmap:+I<name>] >>
1542
1543	=item B<< [pixmap:+I<name>;I<scaling>] >>
1544
1545	(set the background pixmap globally
1546
1547	B<< A Future implementation I<may> make this local to the menubar >>)
1548
1549	=item B<< [:+I<command>:] >>
1550
1551	ignore the menu readonly status and issue a I<command> to or a menu or
1552	menuitem or change the ; a useful shortcut for setting the quick arrows
1553	from a menuBar.
1554
1555	=back
1556
1557	X<menuBarAdd>
1558
1559	=head2 Adding and accessing menus
1560
1561	The following commands may also be B<+> prefixed.
1562
1563	=over 4
1564
1565	=item B</+>
1566
1567	access menuBar top level
1568
1569	=item B<./+>
1570
1571	access current menu level
1572
1573	=item B<../+>
1574
1575	access parent menu (1 level up)
1576
1577	=item B<../../>
1578
1579	access parent menu (multiple levels up)
1580
1581	=item B<< I</path/>menu >>
1582
1583	add/access menu
1584
1585	=item B<< I</path/>menu/* >>
1586
1587	add/access menu and clear it if it exists
1588
1589	=item B<< I</path/>{-} >>
1590
1591	add separator
1592
1593	=item B<< I</path/>{item} >>
1594
1595	add B<item> as a label
1596
1597	=item B<< I</path/>{item} action >>
1598
1599	add/alter I<menuitem> with an associated I<action>
1600
1601	=item B<< I</path/>{item}{right-text} >>
1602
1603	add/alter I<menuitem> with B<right-text> as the right-justified text
1604	and as the associated I<action>
1605
1606	=item B<< I</path/>{item}{rtext} action >>
1607
1608	add/alter I<menuitem> with an associated I<action> and with B<rtext> as
1609	the right-justified text.
1610
1611	=back
1612
1613	=over 4
1614
1615	=item Special characters in I<action> must be backslash-escaped:
1616
1617	B<\a \b \E \e \n \r \t \octal>
1618
1619	=item or in control-character notation:
1620
1621	B<^@, ^A .. ^Z .. ^_, ^?>
1622
1623	=back
1624
1625	To send a string starting with a B<NUL> (B<^@>) character to the
1626	program, start I<action> with a pair of B<NUL> characters (B<^@^@>),
1627	the first of which will be stripped off and the balance directed to the
1628	program. Otherwise if I<action> begins with B<NUL> followed by
1629	non-+B<NUL> characters, the leading B<NUL> is stripped off and the
1630	balance is sent back to rxvt.
1631
1632	As a convenience for the many Emacs-type editors, I<action> may start
1633	with B<M-> (eg, B<M-$> is equivalent to B<\E$>) and a B<CR> will be
1634	appended if missed from B<M-x> commands.
1635
1636	As a convenience for issuing XTerm B<ESC]> sequences from a menubar (or
1637	quick arrow), a B<BEL> (B<^G>) will be appended if needed.
1638
1639	=over 4
1640
1641	=item For example,
1642
1643	B<M-xapropos> is equivalent to B<\Exapropos\r>
1644
1645	=item and
1646
1647	B<\E]703;mona;100> is equivalent to B<\E]703;mona;100\a>
1648
1649	=back
1650
1651	The option B<< {I<right-rtext>} >> will be right-justified. In the
1652	absence of a specified action, this text will be used as the I<action>
1653	as well.
1654
1655	=over 4
1656
1657	=item For example,
1658
1659	B</File/{Open}{^X^F}> is equivalent to B</File/{Open}{^X^F} ^X^F>
1660
1661	=back
1662
1663	The left label I<is> necessary, since it's used for matching, but
1664	implicitly hiding the left label (by using same name for both left and
1665	right labels), or explicitly hiding the left label (by preceeding it
1666	with a dot), makes it possible to have right-justified text only.
1667
1668	=over 4
1669
1670	=item For example,
1671
1672	B</File/{Open}{Open} Open-File-Action>
1673
1674	=item or hiding it
1675
1676	B</File/{.anylabel}{Open} Open-File-Action>
1677
1678	=back
1679
1680	X<menuBarRemove>
1681
1682	=head2 Removing menus
1683
1684	=over 4
1685
1686	=item B<< -/*+ >>
1687
1688	remove all menus from the menuBar, the same as B<[clear]>
1689
1690	=item B<< -+I</path>menu+ >>
1691
1692	remove menu
1693
1694	=item B<< -+I</path>{item}+ >>
1695
1696	remove item
1697
1698	=item B<< -+I</path>{-} >>
1699
1700	remove separator)
1701
1702	=item B<-/path/menu/*>
1703
1704	remove all items, separators and submenus from menu
1705
1706	=back
1707
1708	X<menuBarArrows>
1709
1710	=head2 Quick Arrows
1711
1712	The menus also provide a hook for I<quick arrows> to provide easier
1713	user access. If nothing has been explicitly set, the default is to
1714	emulate the curror keys. The syntax permits each arrow to be altered
1715	individually or all four at once without re-entering their common
1716	beginning/end text. For example, to explicitly associate cursor actions
1717	with the arrows, any of the following forms could be used:
1718
1719	=over 4
1720
1721	=item B<< <r>+I<Right> >>
1722
1723	=item B<< <l>+I<Left> >>
1724
1725	=item B<< <u>+I<Up> >>
1726
1727	=item B<< <d>+I<Down> >>
1728
1729	Define actions for the respective arrow buttons
1730
1731	=item B<< <b>+I<Begin> >>
1732
1733	=item B<< <e>+I<End> >>
1734
1735	Define common beginning/end parts for I<quick arrows> which used in
1736	conjunction with the above <r> <l> <u> <d> constructs
1737
1738	=back
1739
1740	=over 4
1741
1742	=item For example, define arrows individually,
1743
1744	<u>\E[A
1745
1746	<d>\E[B
1747
1748	<r>\E[C
1749
1750	<l>\E[D
1751
1752	=item or all at once
1753
1754	<u>\E[AZ<><d>\E[BZ<><r>\E[CZ<><l>\E[D
1755
1756	=item or more compactly (factoring out common parts)
1757
1758	<b>\E[<u>AZ<><d>BZ<><r>CZ<><l>D
1759
1760	=back
1761
1762	X<menuBarSummary>
1763
1764	=head2 Command Summary
1765
1766	A short summary of the most I<common> commands:
1767
1768	=over 4
1769
1770	=item [menu:name]
1771
1772	use an existing named menuBar or start a new one
1773
1774	=item [menu]
1775
1776	use the current menuBar
1777
1778	=item [title:string]
1779
1780	set menuBar title
1781
1782	=item [done]
1783
1784	set menu access to readonly and, if reading from a file, signal EOF
1785
1786	=item [done:name]
1787
1788	if reading from a file using [read:file;name] signal EOF
1789
1790	=item [rm:name]
1791
1792	remove named menuBar(s)
1793
1794	=item [rm] [rm:]
1795
1796	remove current menuBar
1797
1798	=item [rm*] [rm:*]
1799
1800	remove all menuBar(s)
1801
1802	=item [swap]
1803
1804	swap top two menuBars
1805
1806	=item [prev]
1807
1808	access the previous menuBar
1809
1810	=item [next]
1811
1812	access the next menuBar
1813
1814	=item [show]
1815
1816	map menuBar
1817
1818	=item [hide]
1819
1820	unmap menuBar
1821
1822	=item [pixmap;file]
1823
1824	=item [pixmap;file;scaling]
1825
1826	set a background pixmap
1827
1828	=item [read:file]
1829
1830	=item [read:file;name]
1831
1832	read in a menu from a file
1833
1834	=item [dump]
1835
1836	dump out all menuBars to /tmp/rxvt-PID
1837
1838	=item /
1839
1840	access menuBar top level
1841
1842	=item ./
1843
1844	=item ../
1845
1846	=item ../../
1847
1848	access current or parent menu level
1849
1850	=item /path/menu
1851
1852	add/access menu
1853
1854	=item /path/{-}
1855
1856	add separator
1857
1858	=item /path/{item}{rtext} action
1859
1860	add/alter menu item
1861
1862	=item -/*
1863
1864	remove all menus from the menuBar
1865
1866	=item -/path/menu
1867
1868	remove menu items, separators and submenus from menu
1869
1870	=item -/path/menu
1871
1872	remove menu
1873
1874	=item -/path/{item}
1875
1876	remove item
1877
1878	=item -/path/{-}
1879
1880	remove separator
1881
1882	=item <b>Begin<r>Right<l>Left<u>Up<d>Down<e>End
1883
1884	menu quick arrows
1885
1886	=back
1887	X<XPM>
1888		2007
1889	=head1 XPM	2008	=head1 XPM
1890		2009
1891	For the XPM XTerm escape sequence B<< C<ESC ] 20 ; Pt ST> >> then value	2010	For the XPM XTerm escape sequence B<< C<ESC ] 20 ; Pt ST> >> then value
1892	of B<< C<Pt> >> can be the name of the background pixmap followed by a	2011	of B<< C<Pt> >> can be the name of the background pixmap followed by a
…		…
1990	=begin table	2109	=begin table
1991		2110
1992	4 Shift	2111	4 Shift
1993	8 Meta	2112	8 Meta
1994	16 Control	2113	16 Control
1995	32 Double Click I<(Rxvt extension)>	2114	32 Double Click I<(rxvt extension)>
1996		2115
1997	=end table	2116	=end table
1998		2117
1999	Col = B<< C<< <x> - SPACE >> >>	2118	Col = B<< C<< <x> - SPACE >> >>
2000		2119
…		…
2077	=end table	2196	=end table
2078		2197
2079	=head1 CONFIGURE OPTIONS	2198	=head1 CONFIGURE OPTIONS
2080		2199
2081	General hint: if you get compile errors, then likely your configuration	2200	General hint: if you get compile errors, then likely your configuration
2082	hasn't been tested well. Either try with --enable-everything or use the	2201	hasn't been tested well. Either try with C<--enable-everything> or use
2083	./reconf script as a base for experiments. ./reconf is used by myself,	2202	the F<./reconf> script as a base for experiments. F<./reconf> is used by
2084	so it should generally be a working config. Of course, you should always	2203	myself, so it should generally be a working config. Of course, you should
2085	report when a combination doesn't work, so it can be fixed. Marc Lehmann	2204	always report when a combination doesn't work, so it can be fixed. Marc
2086	<rxvt@schmorp.de>.	2205	Lehmann <rxvt@schmorp.de>.
		2206
		2207	All
2087		2208
2088	=over 4	2209	=over 4
2089		2210
2090	=item --enable-everything	2211	=item --enable-everything
2091		2212
2092	Add support for all non-multichoice options listed in "./configure	2213	Add (or remove) support for all non-multichoice options listed in "./configure
2093	--help". Note that unlike other enable options this is order dependant.	2214	--help".
		2215
2094	You can specify this and then disable options which this enables by	2216	You can specify this and then disable options you do not like by
2095	I<following> this with the appropriate commands.	2217	I<following> this with the appropriate C<--disable-...> arguments,
		2218	or you can start with a minimal configuration by specifying
		2219	C<--disable-everything> and than adding just the C<--enable-...> arguments
		2220	you want.
2096		2221
2097	=item --enable-xft	2222	=item --enable-xft (default: enabled)
2098		2223
2099	Add support for Xft (anti-aliases, among others) fonts. Xft fonts are	2224	Add support for Xft (anti-aliases, among others) fonts. Xft fonts are
2100	slower and require lots of memory, but as long as you don't use them, you	2225	slower and require lots of memory, but as long as you don't use them, you
2101	don't pay for them.	2226	don't pay for them.
2102		2227
2103	=item --enable-font-styles	2228	=item --enable-font-styles (default: on)
2104		2229
2105	Add support for B<bold>, I<italic> and B<< I<bold italic> >> font	2230	Add support for B<bold>, I<italic> and B<< I<bold italic> >> font
2106	styles. The fonts can be set manually or automatically.	2231	styles. The fonts can be set manually or automatically.
2107		2232
2108	=item --with-codesets=NAME,...	2233	=item --with-codesets=NAME,... (default: all)
2109		2234
2110	Compile in support for additional codeset (encoding) groups (eu, vn are	2235	Compile in support for additional codeset (encoding) groups (C<eu>, C<vn>
2111	always compiled in, which includes most 8-bit character sets). These	2236	are always compiled in, which includes most 8-bit character sets). These
2112	codeset tables are currently only used for driving X11 core fonts, they	2237	codeset tables are used for driving X11 core fonts, they are not required
2113	are not required for Xft fonts. Compiling them in will make your binary	2238	for Xft fonts, although having them compiled in lets rxvt-unicode choose
2114	bigger (together about 700kB), but it doesn't increase memory usage unless	2239	replacement fonts more intelligently. Compiling them in will make your
		2240	binary bigger (all of together cost about 700kB), but it doesn't increase
2115	you use an X11 font requiring one of these encodings.	2241	memory usage unless you use a font requiring one of these encodings.
2116		2242
2117	=begin table	2243	=begin table
2118		2244
2119	all all available codeset groups	2245	all all available codeset groups
2120	zh common chinese encodings	2246	zh common chinese encodings
…		…
2123	jp_ext rarely used but big japanese encodings	2249	jp_ext rarely used but big japanese encodings
2124	kr korean encodings	2250	kr korean encodings
2125		2251
2126	=end table	2252	=end table
2127		2253
2128	=item --enable-xim	2254	=item --enable-xim (default: on)
2129		2255
2130	Add support for XIM (X Input Method) protocol. This allows using	2256	Add support for XIM (X Input Method) protocol. This allows using
2131	alternative input methods (e.g. kinput2) and will also correctly	2257	alternative input methods (e.g. kinput2) and will also correctly
2132	set up the input for people using dead keys or compose keys.	2258	set up the input for people using dead keys or compose keys.
2133		2259
2134	=item --enable-unicode3	2260	=item --enable-unicode3 (default: off)
		2261
		2262	Recommended to stay off unless you really need non-BMP characters.
2135		2263
2136	Enable direct support for displaying unicode codepoints above	2264	Enable direct support for displaying unicode codepoints above
2137	65535 (the basic multilingual page). This increases storage	2265	65535 (the basic multilingual page). This increases storage
2138	requirements per character from 2 to 4 bytes. X11 fonts do not yet	2266	requirements per character from 2 to 4 bytes. X11 fonts do not yet
2139	support these extra characters, but Xft does.	2267	support these extra characters, but Xft does.
…		…
2142	even without this flag, but the number of such characters is	2270	even without this flag, but the number of such characters is
2143	limited to a view thousand (shared with combining characters,	2271	limited to a view thousand (shared with combining characters,
2144	see next switch), and right now rxvt-unicode cannot display them	2272	see next switch), and right now rxvt-unicode cannot display them
2145	(input/output and cut&paste still work, though).	2273	(input/output and cut&paste still work, though).
2146		2274
2147	=item --enable-combining	2275	=item --enable-combining (default: on)
2148		2276
2149	Enable automatic composition of combining characters into	2277	Enable automatic composition of combining characters into
2150	composite characters. This is required for proper viewing of text	2278	composite characters. This is required for proper viewing of text
2151	where accents are encoded as seperate unicode characters. This is	2279	where accents are encoded as seperate unicode characters. This is
2152	done by using precomposited characters when available or creating	2280	done by using precomposited characters when available or creating
2153	new pseudo-characters when no precomposed form exists.	2281	new pseudo-characters when no precomposed form exists.
2154		2282
2155	Without --enable-unicode3, the number of additional precomposed	2283	Without --enable-unicode3, the number of additional precomposed
2156	characters is rather limited (2048, if this is full, rxvt will use the	2284	characters is somewhat limited (the 6400 private use characters will be
2157	private use area, extending the number of combinations to 8448). With	2285	(ab-)used). With --enable-unicode3, no practical limit exists.
2158	--enable-unicode3, no practical limit exists. This will also enable	2286
2159	storage of characters >65535.	2287	This option will also enable storage (but not display) of characters
		2288	beyond plane 0 (>65535) when --enable-unicode3 was not specified.
2160		2289
2161	The combining table also contains entries for arabic presentation forms,	2290	The combining table also contains entries for arabic presentation forms,
2162	but these are not currently used. Bug me if you want these to be used.	2291	but these are not currently used. Bug me if you want these to be used (and
		2292	tell me how these are to be used...).
2163		2293
2164	=item --enable-fallback(=CLASS)	2294	=item --enable-fallback(=CLASS) (default: Rxvt)
2165		2295
2166	When reading resource settings, also read settings for class CLASS	2296	When reading resource settings, also read settings for class CLASS. To
2167	(default: Rxvt). To disable resource fallback use --disable-fallback.	2297	disable resource fallback use --disable-fallback.
2168		2298
2169	=item --with-res-name=NAME	2299	=item --with-res-name=NAME (default: urxvt)
2170		2300
2171	Use the given name (default: urxvt) as default application name when	2301	Use the given name as default application name when
2172	reading resources. Specify --with-res-name=rxvt to replace rxvt.	2302	reading resources. Specify --with-res-name=rxvt to replace rxvt.
2173		2303
2174	=item --with-res-class=CLASS	2304	=item --with-res-class=CLASS /default: URxvt)
2175		2305
2176	Use the given class (default: URxvt) as default application class	2306	Use the given class as default application class
2177	when reading resources. Specify --with-res-class=Rxvt to replace	2307	when reading resources. Specify --with-res-class=Rxvt to replace
2178	rxvt.	2308	rxvt.
2179		2309
2180	=item --enable-utmp	2310	=item --enable-utmp (default: on)
2181		2311
2182	Write user and tty to utmp file (used by programs like F<w>) at	2312	Write user and tty to utmp file (used by programs like F<w>) at
2183	start of rxvt execution and delete information when rxvt exits.	2313	start of rxvt execution and delete information when rxvt exits.
2184		2314
2185	=item --enable-wtmp	2315	=item --enable-wtmp (default: on)
2186		2316
2187	Write user and tty to wtmp file (used by programs like F<last>) at	2317	Write user and tty to wtmp file (used by programs like F<last>) at
2188	start of rxvt execution and write logout when rxvt exits. This	2318	start of rxvt execution and write logout when rxvt exits. This
2189	option requires --enable-utmp to also be specified.	2319	option requires --enable-utmp to also be specified.
2190		2320
2191	=item --enable-lastlog	2321	=item --enable-lastlog (default: on)
2192		2322
2193	Write user and tty to lastlog file (used by programs like	2323	Write user and tty to lastlog file (used by programs like
2194	F<lastlogin>) at start of rxvt execution. This option requires	2324	F<lastlogin>) at start of rxvt execution. This option requires
2195	--enable-utmp to also be specified.	2325	--enable-utmp to also be specified.
2196		2326
2197	=item --enable-xpm-background	2327	=item --enable-xpm-background (default: on)
2198		2328
2199	Add support for XPM background pixmaps.	2329	Add support for XPM background pixmaps.
2200		2330
2201	=item --enable-transparency	2331	=item --enable-transparency (default: on)
2202		2332
2203	Add support for inheriting parent backgrounds thus giving a fake	2333	Add support for inheriting parent backgrounds thus giving a fake
2204	transparency to the term.	2334	transparency to the term.
2205		2335
2206	=item --enable-fading	2336	=item --enable-fading (default: on)
2207		2337
2208	Add support for fading the text when focus is lost.	2338	Add support for fading the text when focus is lost (requires C<--enable-transparency>).
2209		2339
2210	=item --enable-tinting	2340	=item --enable-tinting (default: on)
2211		2341
2212	Add support for tinting of transparent backgrounds.	2342	Add support for tinting of transparent backgrounds (requires C<--enable-transparency>).
2213		2343
2214	=item --enable-menubar
2215
2216	Add support for our menu bar system (this interacts badly with
2217	dynamic locale switching currently).
2218
2219	=item --enable-rxvt-scroll	2344	=item --enable-rxvt-scroll (default: on)
2220		2345
2221	Add support for the original rxvt scrollbar.	2346	Add support for the original rxvt scrollbar.
2222		2347
2223	=item --enable-next-scroll	2348	=item --enable-next-scroll (default: on)
2224		2349
2225	Add support for a NeXT-like scrollbar.	2350	Add support for a NeXT-like scrollbar.
2226		2351
2227	=item --enable-xterm-scroll	2352	=item --enable-xterm-scroll (default: on)
2228		2353
2229	Add support for an Xterm-like scrollbar.	2354	Add support for an Xterm-like scrollbar.
2230		2355
2231	=item --enable-plain-scroll	2356	=item --enable-plain-scroll (default: on)
2232		2357
2233	Add support for a very unobtrusive, plain-looking scrollbar that	2358	Add support for a very unobtrusive, plain-looking scrollbar that
2234	is the favourite of the rxvt-unicode author, having used it for	2359	is the favourite of the rxvt-unicode author, having used it for
2235	many years.	2360	many years.
2236		2361
2237	=item --enable-half-shadow	2362	=item --enable-ttygid (default: off)
2238
2239	Make shadows on the scrollbar only half the normal width & height.
2240	only applicable to rxvt scrollbars.
2241
2242	=item --enable-ttygid
2243		2363
2244	Change tty device setting to group "tty" - only use this if	2364	Change tty device setting to group "tty" - only use this if
2245	your system uses this type of security.	2365	your system uses this type of security.
2246		2366
2247	=item --disable-backspace-key	2367	=item --disable-backspace-key
2248		2368
2249	Disable any handling of the backspace key by us - let the X server	2369	Removes any handling of the backspace key by us - let the X server do it.
		2370
		2371	=item --disable-delete-key
		2372
		2373	Removes any handling of the delete key by us - let the X server
2250	do it.	2374	do it.
2251		2375
2252	=item --disable-delete-key
2253
2254	Disable any handling of the delete key by us - let the X server
2255	do it.
2256
2257	=item --disable-resources	2376	=item --disable-resources
2258		2377
2259	Remove all resources checking.	2378	Removes any support for resource checking.
2260
2261	=item --enable-xgetdefault
2262
2263	Make resources checking via XGetDefault() instead of our small
2264	version which only checks ~/.Xdefaults, or if that doesn't exist
2265	then ~/.Xresources.
2266
2267	=item --enable-strings
2268
2269	Add support for our possibly faster memset() function and other
2270	various routines, overriding your system's versions which may
2271	have been hand-crafted in assembly or may require extra libraries
2272	to link in. (this breaks ANSI-C rules and has problems on many
2273	GNU/Linux systems).
2274		2379
2275	=item --disable-swapscreen	2380	=item --disable-swapscreen
2276		2381
2277	Remove support for swap screen.	2382	Remove support for secondary/swap screen.
2278		2383
2279	=item --enable-frills	2384	=item --enable-frills (default: on)
2280		2385
2281	Add support for many small features that are not essential but nice to	2386	Add support for many small features that are not essential but nice to
2282	have. Normally you want this, but for very small binaries you may want to	2387	have. Normally you want this, but for very small binaries you may want to
2283	disable this.	2388	disable this.
2284		2389
2285	A non-exhaustive list of features enabled by C<--enable-frills> (possibly	2390	A non-exhaustive list of features enabled by C<--enable-frills> (possibly
2286	in combination with other switches) is:	2391	in combination with other switches) is:
2287		2392
2288	MWM-hints	2393	MWM-hints
		2394	EWMH-hints (pid, utf8 names) and protocols (ping)
2289	seperate underline colour	2395	seperate underline colour (-underlineColor)
2290	settable border widths and borderless switch	2396	settable border widths and borderless switch (-w, -b, -bl)
		2397	visual depth selection (-depth)
2291	settable extra linespacing	2398	settable extra linespacing /-lsp)
2292	extra window properties (e.g. UTF-8 window names and PID)
2293	iso-14755-2 and -3, and visual feedback	2399	iso-14755-2 and -3, and visual feedback
		2400	tripleclickwords (-tcw)
		2401	settable insecure mode (-insecure)
		2402	keysym remapping support
		2403	cursor blinking and underline cursor (-cb, -uc)
		2404	XEmbed support (-embed)
		2405	user-pty (-pty-fd)
		2406	hold on exit (-hold)
		2407	skip builtin block graphics (-sbg)
		2408	separate highlightcolor support (-hc)
		2409
		2410	It also enables some non-essential features otherwise disabled, such as:
		2411
		2412	some round-trip time optimisations
		2413	nearest color allocation on pseudocolor screens
		2414	UTF8_STRING supporr for selection
		2415	sgr modes 90..97 and 100..107
2294	backindex and forwardindex escape sequence	2416	backindex and forwardindex escape sequences
		2417	view change/zero scorllback esacpe sequences
		2418	locale switching escape sequence
2295	window op and locale change escape sequences	2419	window op and some xterm/OSC escape sequences
2296	tripleclickwords	2420	rectangular selections
2297	settable insecure mode	2421	trailing space removal for selections
		2422	verbose X error handling
2298		2423
2299	=item --enable-iso14755	2424	=item --enable-iso14755 (default: on)
2300		2425
2301	Enable extended ISO 14755 support (see @@RXVT_NAME@@(1), or	2426	Enable extended ISO 14755 support (see @@RXVT_NAME@@(1), or
2302	F<doc/rxvt.1.txt>). Basic support (section 5.1) is enabled by	2427	F<doc/rxvt.1.txt>). Basic support (section 5.1) is enabled by
2303	C<--enable-frills>, while support for 5.2, 5.3 and 5.4 is enabled with	2428	C<--enable-frills>, while support for 5.2, 5.3 and 5.4 is enabled with
2304	this switch.	2429	this switch.
2305		2430
2306	=item --enable-keepscrolling	2431	=item --enable-keepscrolling (default: on)
2307		2432
2308	Add support for continual scrolling of the display when you hold	2433	Add support for continual scrolling of the display when you hold
2309	the mouse button down on a scrollbar arrow.	2434	the mouse button down on a scrollbar arrow.
2310		2435
2311	=item --enable-mousewheel	2436	=item --enable-mousewheel (default: on)
2312		2437
2313	Add support for scrolling via mouse wheel or buttons 4 & 5.	2438	Add support for scrolling via mouse wheel or buttons 4 & 5.
2314		2439
2315	=item --enable-slipwheeling	2440	=item --enable-slipwheeling (default: on)
2316		2441
2317	Add support for continual scrolling (using the mouse wheel as an	2442	Add support for continual scrolling (using the mouse wheel as an
2318	accelerator) while the control key is held down. This option	2443	accelerator) while the control key is held down. This option
2319	requires --enable-mousewheel to also be specified.	2444	requires --enable-mousewheel to also be specified.
2320		2445
2321	=item --disable-new-selection	2446	=item --disable-new-selection
2322		2447
2323	Remove support for mouse selection style like that of xterm.	2448	Remove support for mouse selection style like that of xterm.
2324		2449
2325	=item --enable-dmalloc	2450	=item --enable-dmalloc (default: off)
2326		2451
2327	Use Gray Watson's malloc - which is good for debugging See	2452	Use Gray Watson's malloc - which is good for debugging See
2328	http://www.letters.com/dmalloc/ for details If you use either this or the	2453	L<http://www.letters.com/dmalloc/> for details If you use either this or the
2329	next option, you may need to edit src/Makefile after compiling to point	2454	next option, you may need to edit src/Makefile after compiling to point
2330	DINCLUDE and DLIB to the right places.	2455	DINCLUDE and DLIB to the right places.
2331		2456
2332	You can only use either this option and the following (should	2457	You can only use either this option and the following (should
2333	you use either) .	2458	you use either) .
2334		2459
2335	=item --enable-dlmalloc	2460	=item --enable-dlmalloc (default: off)
2336		2461
2337	Use Doug Lea's malloc - which is good for a production version	2462	Use Doug Lea's malloc - which is good for a production version
2338	See L<http://g.oswego.edu/dl/html/malloc.html> for details.	2463	See L<http://g.oswego.edu/dl/html/malloc.html> for details.
2339		2464
2340	=item --enable-smart-resize	2465	=item --enable-smart-resize (default: on)
2341		2466
2342	Add smart growth/shrink behaviour when changing font size via from hot	2467	Add smart growth/shrink behaviour when changing font size via hot
2343	keys. This should keep in a fixed position the rxvt corner which is	2468	keys. This should keep the window corner which is closest to a corner of
2344	closest to a corner of the screen.	2469	the screen in a fixed position.
2345		2470
2346	=item --enable-cursor-blink
2347
2348	Add support for a blinking cursor.
2349
2350	=item --enable-pointer-blank	2471	=item --enable-pointer-blank (default: on)
2351		2472
2352	Add support to have the pointer disappear when typing or inactive.	2473	Add support to have the pointer disappear when typing or inactive.
2353		2474
2354	=item --with-name=NAME	2475	=item --enable-perl (default: on)
2355		2476
		2477	Enable an embedded perl interpreter. See the B<@@RXVT_NAME@@perl(3)>
		2478	manpage (F<doc/rxvtperl.txt>) for more info on this feature, or the files
		2479	in F<src/perl-ext/> for the extensions that are installed by default. The
		2480	perl interpreter that is used can be specified via the C<PERL> environment
		2481	variable when running configure.
		2482
		2483	=item --with-name=NAME (default: urxvt)
		2484
2356	Set the basename for the installed binaries (default: C<urxvt>, resulting	2485	Set the basename for the installed binaries, resulting
2357	in C<urxvt>, C<urxvtd> etc.). Specify C<--with-name=rxvt> to replace with	2486	in C<urxvt>, C<urxvtd> etc.). Specify C<--with-name=rxvt> to replace with
2358	C<rxvt>.	2487	C<rxvt>.
2359		2488
2360	=item --with-term=NAME	2489	=item --with-term=NAME (default: rxvt-unicode)
2361		2490
2362	Change the environmental variable for the terminal to NAME (default	2491	Change the environmental variable for the terminal to NAME.
2363	C<rxvt-unicode>)
2364		2492
2365	=item --with-terminfo=PATH	2493	=item --with-terminfo=PATH
2366		2494
2367	Change the environmental variable for the path to the terminfo tree to	2495	Change the environmental variable for the path to the terminfo tree to
2368	PATH.	2496	PATH.

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