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Revision 1.3 by root, Thu Feb 3 10:24:09 2005 UTC vs.
Revision 1.33 by root, Sat Jan 28 22:16:58 2006 UTC

1FREQUENTLY ASKED QUESTIONS 1FREQUENTLY ASKED QUESTIONS
2 The new selection selects pieces that are too big, how can I select
3 single words?
4 Yes. For example, if you want to select alphanumeric words, you can
5 use the following resource:
6
7 URxvt.selection.pattern-0: ([[:word:]]+)
8
9 If you click more than twice, the selection will be extended more
10 and more.
11
12 To get a selection that is very similar to the old code, try this
13 pattern:
14
15 URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+)
16
17 Please also note that the *LeftClick Shift-LeftClik* combination
18 also selects words like the old code.
19
20 I don't like the new selection/popups/hotkeys/perl, how do I
21 change/disable it?
22 You can disable the perl extension completely by setting the
23 perl-ext-common resource to the empty string, which also keeps
24 rxvt-unicode from initialising perl, saving memory.
25
26 If you only want to disable specific features, you first have to
27 identify which perl extension is responsible. For this, read the
28 section PREPACKAGED EXTENSIONS in the rxvtperl(3) manpage. For
29 example, to disable the selection-popup and option-popup, specify
30 this perl-ext-common resource:
31
32 URxvt.perl-ext-common: default,-selection-popup,-option-popup
33
34 This will keep the default extensions, but disable the two popup
35 extensions. Some extensions can also be configured, for example,
36 scrollback search mode is triggered by M-s. You can move it to any
37 other combination either by setting the searchable-scrollback
38 resource:
39
40 URxvt.searchable-scrollback: CM-s
41
42 Isn't rxvt supposed to be small? Don't all those features bloat?
43 I often get asked about this, and I think, no, they didn't cause
44 extra bloat. If you compare a minimal rxvt and a minimal urxvt, you
45 can see that the urxvt binary is larger (due to some encoding tables
46 always being compiled in), but it actually uses less memory (RSS)
47 after startup. Even with "--disable-everything", this comparison is
48 a bit unfair, as many features unique to urxvt (locale, encoding
49 conversion, iso14755 etc.) are already in use in this mode.
50
51 text data bss drs rss filename
52 98398 1664 24 15695 1824 rxvt --disable-everything
53 188985 9048 66616 18222 1788 urxvt --disable-everything
54
55 When you "--enable-everything" (which _is_ unfair, as this involves
56 xft and full locale/XIM support which are quite bloaty inside libX11
57 and my libc), the two diverge, but not unreasnobaly so.
58
59 text data bss drs rss filename
60 163431 2152 24 20123 2060 rxvt --enable-everything
61 1035683 49680 66648 29096 3680 urxvt --enable-everything
62
63 The very large size of the text section is explained by the
64 east-asian encoding tables, which, if unused, take up disk space but
65 nothing else and can be compiled out unless you rely on X11 core
66 fonts that use those encodings. The BSS size comes from the 64k
67 emergency buffer that my c++ compiler allocates (but of course
68 doesn't use unless you are out of memory). Also, using an xft font
69 instead of a core font immediately adds a few megabytes of RSS. Xft
70 indeed is responsible for a lot of RSS even when not used.
71
72 Of course, due to every character using two or four bytes instead of
73 one, a large scrollback buffer will ultimately make rxvt-unicode use
74 more memory.
75
76 Compared to e.g. Eterm (5112k), aterm (3132k) and xterm (4680k),
77 this still fares rather well. And compared to some monsters like
78 gnome-terminal (21152k + extra 4204k in separate processes) or
79 konsole (22200k + extra 43180k in daemons that stay around after
80 exit, plus half a minute of startup time, including the hundreds of
81 warnings it spits out), it fares extremely well *g*.
82
83 Why C++, isn't that unportable/bloated/uncool?
84 Is this a question? :) It comes up very often. The simple answer is:
85 I had to write it, and C++ allowed me to write and maintain it in a
86 fraction of the time and effort (which is a scarce resource for me).
87 Put even shorter: It simply wouldn't exist without C++.
88
89 My personal stance on this is that C++ is less portable than C, but
90 in the case of rxvt-unicode this hardly matters, as its portability
91 limits are defined by things like X11, pseudo terminals, locale
92 support and unix domain sockets, which are all less portable than
93 C++ itself.
94
95 Regarding the bloat, see the above question: It's easy to write
96 programs in C that use gobs of memory, an certainly possible to
97 write programs in C++ that don't. C++ also often comes with large
98 libraries, but this is not necessarily the case with GCC. Here is
99 what rxvt links against on my system with a minimal config:
100
101 libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
102 libc.so.6 => /lib/libc.so.6 (0x00002aaaaadde000)
103 libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab01d000)
104 /lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
105
106 And here is rxvt-unicode:
107
108 libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00002aaaaabc3000)
109 libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00002aaaaada2000)
110 libc.so.6 => /lib/libc.so.6 (0x00002aaaaaeb0000)
111 libdl.so.2 => /lib/libdl.so.2 (0x00002aaaab0ee000)
112 /lib64/ld-linux-x86-64.so.2 (0x00002aaaaaaab000)
113
114 No large bloated libraries (of course, none were linked in
115 statically), except maybe libX11 :)
116
117 Does it support tabs, can I have a tabbed rxvt-unicode?
118 Beginning with version 7.3, there is a perl extension that
119 implements a simple tabbed terminal. It is installed by default, so
120 any of these should give you tabs:
121
122 rxvt -pe tabbed
123
124 URxvt.perl-ext-common: default,tabbed
125
126 It will also work fine with tabbing functionality of many window
127 managers or similar tabbing programs, and its embedding-features
128 allow it to be embedded into other programs, as witnessed by
129 doc/rxvt-tabbed or the upcoming "Gtk2::URxvt" perl module, which
130 features a tabbed urxvt (murxvt) terminal as an example embedding
131 application.
132
2 How do I know which rxvt-unicode version I'm using? 133 How do I know which rxvt-unicode version I'm using?
3 The version number is displayed with the usage (-h). Also the escape 134 The version number is displayed with the usage (-h). Also the escape
4 sequence "ESC[8n" sets the window title to the version number. 135 sequence "ESC [ 8 n" sets the window title to the version number.
136 When using the rxvtc client, the version displayed is that of the
137 daemon.
138
139 I am using Debian GNU/Linux and have a problem...
140 The Debian GNU/Linux package of rxvt-unicode in sarge contains large
141 patches that considerably change the behaviour of rxvt-unicode (but
142 unfortunately this notice has been removed). Before reporting a bug
143 to the original rxvt-unicode author please download and install the
144 genuine version (<http://software.schmorp.de#rxvt-unicode>) and try
145 to reproduce the problem. If you cannot, chances are that the
146 problems are specific to Debian GNU/Linux, in which case it should
147 be reported via the Debian Bug Tracking System (use "reportbug" to
148 report the bug).
149
150 For other problems that also affect the Debian package, you can and
151 probably should use the Debian BTS, too, because, after all, it's
152 also a bug in the Debian version and it serves as a reminder for
153 other users that might encounter the same issue.
154
155 I am maintaining rxvt-unicode for distribution/OS XXX, any
156 recommendation?
157 You should build one binary with the default options. configure now
158 enables most useful options, and the trend goes to making them
159 runtime-switchable, too, so there is usually no drawback to enbaling
160 them, except higher disk and possibly memory usage. The perl
161 interpreter should be enabled, as important functionality (menus,
162 selection, likely more in the future) depends on it.
163
164 You should not overwrite the "perl-ext-common" snd "perl-ext"
165 resources system-wide (except maybe with "defaults"). This will
166 result in useful behaviour. If your distribution aims at low memory,
167 add an empty "perl-ext-common" resource to the app-defaults file.
168 This will keep the perl interpreter disabled until the user enables
169 it.
170
171 If you can/want build more binaries, I recommend building a minimal
172 one with "--disable-everything" (very useful) and a maximal one with
173 "--enable-everything" (less useful, it will be very big due to a lot
174 of encodings built-in that increase download times and are rarely
175 used).
176
177 I need to make it setuid/setgid to support utmp/ptys on my OS, is this
178 safe?
179 It should be, starting with release 7.1. You are encouraged to
180 properly install urxvt with privileges necessary for your OS now.
181
182 When rxvt-unicode detects that it runs setuid or setgid, it will
183 fork into a helper process for privileged operations (pty handling
184 on some systems, utmp/wtmp/lastlog handling on others) and drop
185 privileges immediately. This is much safer than most other terminals
186 that keep privileges while running (but is more relevant to urxvt,
187 as it contains things as perl interpreters, which might be "helpful"
188 to attackers).
189
190 This forking is done as the very first within main(), which is very
191 early and reduces possible bugs to initialisation code run before
192 main(), or things like the dynamic loader of your system, which
193 should result in very little risk.
5 194
6 When I log-in to another system it tells me about missing terminfo data? 195 When I log-in to another system it tells me about missing terminfo data?
7 The terminal description used by rxvt-unicode is not as widely 196 The terminal description used by rxvt-unicode is not as widely
8 available as that for xterm, or even rxvt (for which the same 197 available as that for xterm, or even rxvt (for which the same
9 problem often arises). 198 problem often arises).
… …
21 problems arising, which includes wrong keymapping, less and 210 problems arising, which includes wrong keymapping, less and
22 different colours and some refresh errors in fullscreen 211 different colours and some refresh errors in fullscreen
23 applications. It's a nice quick-and-dirty workaround for rare cases, 212 applications. It's a nice quick-and-dirty workaround for rare cases,
24 though. 213 though.
25 214
26 If you always want to do this you can either recompile rxvt-unicode 215 If you always want to do this (and are fine with the consequences)
27 with the desired TERM value or use a resource to set it: 216 you can either recompile rxvt-unicode with the desired TERM value or
217 use a resource to set it:
28 218
29 URxvt.termName: rxvt 219 URxvt.termName: rxvt
30 220
31 If you don't plan to use rxvt (quite common...) you could also 221 If you don't plan to use rxvt (quite common...) you could also
32 replace the rxvt terminfo file with the rxvt-unicode one. 222 replace the rxvt terminfo file with the rxvt-unicode one.
33 223
224 "tic" outputs some error when compiling the terminfo entry.
225 Most likely it's the empty definition for "enacs=". Just replace it
226 by "enacs=\E[0@" and try again.
227
228 "bash"'s readline does not work correctly under rxvt.
34 I need a termcap file entry. 229 I need a termcap file entry.
230 One reason you might want this is that some distributions or
231 operating systems still compile some programs using the
232 long-obsoleted termcap library (Fedora Core's bash is one example)
233 and rely on a termcap entry for "rxvt-unicode".
234
35 You could use rxvt's termcap entry with resonable results in many 235 You could use rxvt's termcap entry with resonable results in many
36 cases. You can also create a termcap entry by using terminfo's 236 cases. You can also create a termcap entry by using terminfo's
37 infocmp program like this: 237 infocmp program like this:
38 238
39 infocmp -C rxvt-unicode 239 infocmp -C rxvt-unicode
40 240
41 OR you could this termcap entry: 241 Or you could use this termcap entry, generated by the command above:
42 242
43 rxvt-unicode|rxvt-unicode terminal (X Window System):\ 243 rxvt-unicode|rxvt-unicode terminal (X Window System):\
44 :am:bw:eo:km:mi:ms:xn:xo:\ 244 :am:bw:eo:km:mi:ms:xn:xo:\
45 :co#80:it#8:li#24:\ 245 :co#80:it#8:li#24:lm#0:\
46 :AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\ 246 :AL=\E[%dL:DC=\E[%dP:DL=\E[%dM:DO=\E[%dB:IC=\E[%d@:\
47 :K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\ 247 :K1=\EOw:K2=\EOu:K3=\EOy:K4=\EOq:K5=\EOs:LE=\E[%dD:\
48 :RI=\E[%dC:SF=\E[%dS:SR=\E[%dT:UP=\E[%dA:ae=^O:al=\E[L:\ 248 :RI=\E[%dC:SF=\E[%dS:SR=\E[%dT:UP=\E[%dA:ae=\E(B:al=\E[L:\
49 :as=^N:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:cm=\E[%i%d;%dH:\ 249 :as=\E(0:bl=^G:cd=\E[J:ce=\E[K:cl=\E[H\E[2J:\
50 :cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:dl=\E[M:do=^J:\ 250 :cm=\E[%i%d;%dH:cr=^M:cs=\E[%i%d;%dr:ct=\E[3g:dc=\E[P:\
51 :ec=\E[%dX:ei=\E[4l:ho=\E[H:i1=\E[?47l\E=\E[?1l:ic=\E[@:\ 251 :dl=\E[M:do=^J:ec=\E[%dX:ei=\E[4l:ho=\E[H:\
252 :i1=\E[?47l\E=\E[?1l:ic=\E[@:im=\E[4h:\
52 :im=\E[4h:is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\ 253 :is=\E[r\E[m\E[2J\E[H\E[?7h\E[?1;3;4;6l\E[4l:\
53 :k0=\E[21~:k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:\ 254 :k1=\E[11~:k2=\E[12~:k3=\E[13~:k4=\E[14~:k5=\E[15~:\
54 :k5=\E[15~:k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:\ 255 :k6=\E[17~:k7=\E[18~:k8=\E[19~:k9=\E[20~:kD=\E[3~:\
55 :kD=\E[3~:kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:kd=\EOB:\ 256 :kI=\E[2~:kN=\E[6~:kP=\E[5~:kb=\177:kd=\EOB:ke=\E[?1l\E>:\
56 :ke=\E[?1l\E>:kh=\E[7~:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:\ 257 :kh=\E[7~:kl=\EOD:kr=\EOC:ks=\E[?1h\E=:ku=\EOA:le=^H:\
57 :ku=\EOA:le=^H:mb=\E[5m:md=\E[1m:me=\E[m\017:mr=\E[7m:\ 258 :mb=\E[5m:md=\E[1m:me=\E[m\017:mr=\E[7m:nd=\E[C:rc=\E8:\
58 :nd=\E[C:rc=\E8:sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:\ 259 :sc=\E7:se=\E[27m:sf=^J:so=\E[7m:sr=\EM:st=\EH:ta=^I:\
59 :st=\EH:ta=^I:te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:\ 260 :te=\E[r\E[?1049l:ti=\E[?1049h:ue=\E[24m:up=\E[A:\
60 :up=\E[A:us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\ 261 :us=\E[4m:vb=\E[?5h\E[?5l:ve=\E[?25h:vi=\E[?25l:\
61 :vs=\E[?25h: 262 :vs=\E[?25h:
62 263
63 Why does "ls" no longer have coloured output? 264 Why does "ls" no longer have coloured output?
64 The "ls" in the GNU coreutils unfortunately doesn't use terminfo to 265 The "ls" in the GNU coreutils unfortunately doesn't use terminfo to
65 decide wether a terminal has colour, but uses it's own configuration 266 decide wether a terminal has colour, but uses it's own configuration
… …
84 furthermore fail to even install the "rxvt-unicode" terminfo file, 285 furthermore fail to even install the "rxvt-unicode" terminfo file,
85 so you will need to install it on your own (See the question When I 286 so you will need to install it on your own (See the question When I
86 log-in to another system it tells me about missing terminfo data? on 287 log-in to another system it tells me about missing terminfo data? on
87 how to do this). 288 how to do this).
88 289
290 My numerical keypad acts weird and generates differing output?
291 Some Debian GNUL/Linux users seem to have this problem, although no
292 specific details were reported so far. It is possible that this is
293 caused by the wrong "TERM" setting, although the details of wether
294 and how this can happen are unknown, as "TERM=rxvt" should offer a
295 compatible keymap. See the answer to the previous question, and
296 please report if that helped.
297
89 Rxvt-unicode does not seem to understand the selected encoding? 298 Rxvt-unicode does not seem to understand the selected encoding?
90 Unicode does not seem to work? 299 Unicode does not seem to work?
91 If you encounter strange problems like typing an accented character 300 If you encounter strange problems like typing an accented character
92 but getting two unrelated other characters or similar, or if program 301 but getting two unrelated other characters or similar, or if program
93 output is subtly garbled, then you should check your locale 302 output is subtly garbled, then you should check your locale
94 settings. 303 settings.
95 304
96 Rxvt-unicode must be started with the same "LC_CTYPE" setting as the 305 Rxvt-unicode must be started with the same "LC_CTYPE" setting as the
97 programs. Often rxvt-unicode is started in the "C" locale, while the 306 programs. Often rxvt-unicode is started in the "C" locale, while the
98 login script running within the rxvt-unicode window changes the 307 login script running within the rxvt-unicode window changes the
99 locale to sth. else, e.h. "en_GB.UTF-8". Needless to say, this is 308 locale to something else, e.g. "en_GB.UTF-8". Needless to say, this
100 not going to work. 309 is not going to work.
101 310
102 The best thing is to fix your startup environment, as you will 311 The best thing is to fix your startup environment, as you will
103 likely run into other problems. If nothing works you can try this in 312 likely run into other problems. If nothing works you can try this in
104 your .profile. 313 your .profile.
105 314
106 printf '\e]701;%s\007' "$LC_CTYPE" 315 printf '\e]701;%s\007' "$LC_CTYPE"
107 316
108 If this doesn't work, then maybe you use a "LC_CTYPE" specification 317 If this doesn't work, then maybe you use a "LC_CTYPE" specification
109 not supported on your systems. Some systems have a "locale" command 318 not supported on your systems. Some systems have a "locale" command
110 which displays this. If it displays sth. like: 319 which displays this (also, "perl -e0" can be used to check locale
320 settings, as it will complain loudly if it cannot set the locale).
321 If it displays something like:
111 322
112 locale: Cannot set LC_CTYPE to default locale: ... 323 locale: Cannot set LC_CTYPE to default locale: ...
113 324
114 Then the locale you specified is not supported on your system. 325 Then the locale you specified is not supported on your system.
115 326
… …
123 Chances are that the font you (or the admin/package maintainer of 334 Chances are that the font you (or the admin/package maintainer of
124 your system/os) have specified does not cover all the characters you 335 your system/os) have specified does not cover all the characters you
125 want to display. 336 want to display.
126 337
127 rxvt-unicode makes a best-effort try at finding a replacement font. 338 rxvt-unicode makes a best-effort try at finding a replacement font.
128 Often the result is fine, but sometimes the chosen font looks bad. 339 Often the result is fine, but sometimes the chosen font looks
129 Many fonts have totally strange characters that don't resemble the 340 bad/ugly/wrong. Some fonts have totally strange characters that
130 correct glyph at all, and rxvt-unicode lacks the artificial 341 don't resemble the correct glyph at all, and rxvt-unicode lacks the
131 intelligence to detect that a specific glyph is wrong: it has to 342 artificial intelligence to detect that a specific glyph is wrong: it
132 believe the font that the characters it contains indeed look 343 has to believe the font that the characters it claims to contain
133 correct. 344 indeed look correct.
134 345
135 In that case, select a font of your taste and add it to the font 346 In that case, select a font of your taste and add it to the font
136 list, e.g.: 347 list, e.g.:
137 348
138 rxvt -fn basefont,font2,font3... 349 rxvt -fn basefont,font2,font3...
… …
141 font. If the base font does not contain the character, it will go to 352 font. If the base font does not contain the character, it will go to
142 the next font, and so on. Specifying your own fonts will also speed 353 the next font, and so on. Specifying your own fonts will also speed
143 up this search and use less resources within rxvt-unicode and the 354 up this search and use less resources within rxvt-unicode and the
144 X-server. 355 X-server.
145 356
146 The only limitation is that all the fonts must not be larger than 357 The only limitation is that none of the fonts may be larger than the
147 the base font, as the base font defines the principal cell size, 358 base font, as the base font defines the terminal character cell
148 which must be the same due to the way terminals work. 359 size, which must be the same due to the way terminals work.
149 360
150 Why do some chinese characters look so different than others? 361 Why do some chinese characters look so different than others?
151 This is because there is a difference between script and language -- 362 This is because there is a difference between script and language --
152 rxvt-unicode does not know which language the text that is output 363 rxvt-unicode does not know which language the text that is output
153 is, as it only knows the unicode character codes. If rxvt-unicode 364 is, as it only knows the unicode character codes. If rxvt-unicode
154 first sees a japanese character, it might choose a japanese font for 365 first sees a japanese/chinese character, it might choose a japanese
155 it. Subsequent japanese characters will take that font. Now, many 366 font for display. Subsequent japanese characters will use that font.
156 chinese characters aren't represented in japanese fonts, so when the 367 Now, many chinese characters aren't represented in japanese fonts,
157 first non-japanese character comes up, rxvt-unicode will look for a 368 so when the first non-japanese character comes up, rxvt-unicode will
158 chinese font -- unfortunately at this point, it will still use the 369 look for a chinese font -- unfortunately at this point, it will
159 japanese font for japanese characters that are also chinese. 370 still use the japanese font for chinese characters that are also in
371 the japanese font.
160 372
161 The workaround is easy: just tag a chinese font at the end of your 373 The workaround is easy: just tag a chinese font at the end of your
162 font list (see the previous question). The key is to view the font 374 font list (see the previous question). The key is to view the font
163 list as a preference list: If you expect more japanese, list a 375 list as a preference list: If you expect more japanese, list a
164 japanese font first. If you expect more chinese, put a chinese font 376 japanese font first. If you expect more chinese, put a chinese font
165 first. 377 first.
166 378
167 In the future it might be possible to switch preferences at runtime 379 In the future it might be possible to switch language preferences at
168 (the internal data structure has no problem with using different 380 runtime (the internal data structure has no problem with using
169 fonts for the same character at the same time, but no interface for 381 different fonts for the same character at the same time, but no
170 this has been designed yet). 382 interface for this has been designed yet).
383
384 Until then, you might get away with switching fonts at runtime (see
385 "Can I switch the fonts at runtime?" later in this document).
171 386
172 Why does rxvt-unicode sometimes leave pixel droppings? 387 Why does rxvt-unicode sometimes leave pixel droppings?
173 Most fonts were not designed for terminal use, which means that 388 Most fonts were not designed for terminal use, which means that
174 character size varies a lot. A font that is otherwise fine for 389 character size varies a lot. A font that is otherwise fine for
175 terminal use might contain some characters that are simply too wide. 390 terminal use might contain some characters that are simply too wide.
… …
189 that doesn't work, you might be forced to use a different font. 404 that doesn't work, you might be forced to use a different font.
190 405
191 All of this is not a problem when using X11 core fonts, as their 406 All of this is not a problem when using X11 core fonts, as their
192 bounding box data is correct. 407 bounding box data is correct.
193 408
409 On Solaris 9, many line-drawing characters are too wide.
410 Seems to be a known bug, read
411 <http://nixdoc.net/files/forum/about34198.html>. Some people use the
412 following ugly workaround to get non-double-wide-characters working:
413
414 #define wcwidth(x) wcwidth(x) > 1 ? 1 : wcwidth(x)
415
194 My Compose (Multi_key) key is no longer working. 416 My Compose (Multi_key) key is no longer working.
195 The most common causes for this are that either your locale is not 417 The most common causes for this are that either your locale is not
196 set correctly, or you specified a preeditStyle that is not supported 418 set correctly, or you specified a preeditStyle that is not supported
197 by your input method. For example, if you specified OverTheSpot and 419 by your input method. For example, if you specified OverTheSpot and
198 your input method (e.g. the default input method handling Compose 420 your input method (e.g. the default input method handling Compose
… …
209 advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for 431 advantage, typing <Ctrl-Shift-0> to get a ASCII NUL. This works for
210 other codes, too, such as "Ctrl-Shift-1-d" to type the default 432 other codes, too, such as "Ctrl-Shift-1-d" to type the default
211 telnet escape character and so on. 433 telnet escape character and so on.
212 434
213 How can I keep rxvt-unicode from using reverse video so much? 435 How can I keep rxvt-unicode from using reverse video so much?
214 First of all, make sure you are running with the right terminfo 436 First of all, make sure you are running with the right terminal
215 ("urxvt"), which will get rid of most of these effects. Then make 437 settings ("TERM=rxvt-unicode"), which will get rid of most of these
216 sure you have specified colours for italic and bold, as otherwise 438 effects. Then make sure you have specified colours for italic and
217 rxvt-unicode might use reverse video to simulate the effect: 439 bold, as otherwise rxvt-unicode might use reverse video to simulate
440 the effect:
218 441
219 URxvt*colorBD: white 442 URxvt.colorBD: white
220 URxvt*colorIT: green 443 URxvt.colorIT: green
221 444
222 Some programs assume totally weird colours (red instead of blue), how 445 Some programs assume totally weird colours (red instead of blue), how
223 can I fix that? 446 can I fix that?
224 For some unexplainable reason, some programs (i.e. irssi) assume a 447 For some unexplainable reason, some rare programs assume a very
225 very weird colour palette when confronted with a terminal with more 448 weird colour palette when confronted with a terminal with more than
226 than the standard 8 colours (rxvt-unicode supports 88). The right 449 the standard 8 colours (rxvt-unicode supports 88). The right fix is,
227 fix is, of course, to fix these programs not to assume non-ISO 450 of course, to fix these programs not to assume non-ISO colours
228 colours without very good reasons. 451 without very good reasons.
229 452
230 In the meantime, you can either edit your "urxvt" terminfo 453 In the meantime, you can either edit your "rxvt-unicode" terminfo
231 definition to only claim 8 colour support or use "TERM=rxvt", which 454 definition to only claim 8 colour support or use "TERM=rxvt", which
232 will fix colours but keep you from using other rxvt-unicode 455 will fix colours but keep you from using other rxvt-unicode
233 features. 456 features.
234 457
235 I am on FreeBSD and rxvt-unicode does not seem to work at all. 458 I am on FreeBSD and rxvt-unicode does not seem to work at all.
… …
238 it, wether it defines the symbol or not. "__STDC_ISO_10646__" 461 it, wether it defines the symbol or not. "__STDC_ISO_10646__"
239 requires that wchar_t is represented as unicode. 462 requires that wchar_t is represented as unicode.
240 463
241 As you might have guessed, FreeBSD does neither define this symobl 464 As you might have guessed, FreeBSD does neither define this symobl
242 nor does it support it. Instead, it uses it's own internal 465 nor does it support it. Instead, it uses it's own internal
243 representation of wchar_t. This is, of course, completely legal. 466 representation of wchar_t. This is, of course, completely fine with
467 respect to standards.
244 468
469 However, that means rxvt-unicode only works in "POSIX", "ISO-8859-1"
470 and "UTF-8" locales under FreeBSD (which all use Unicode as wchar_t.
471
245 However, "__STDC_ISO_10646__" is the only sane way to support 472 "__STDC_ISO_10646__" is the only sane way to support multi-language
246 multi-language apps in an OS, as using a locale-dependent (and 473 apps in an OS, as using a locale-dependent (and non-standardized)
247 non-standardized) representation of wchar_t makes it impossible to 474 representation of wchar_t makes it impossible to convert between
248 convert between wchar_t (as used by X11 and your applications) and 475 wchar_t (as used by X11 and your applications) and any other
249 any other encoding without implementing OS-specific-wrappers for 476 encoding without implementing OS-specific-wrappers for each and
250 each and every locale. There simply are no APIs to convert wchar_t 477 every locale. There simply are no APIs to convert wchar_t into
251 into anything except the current locale encoding. 478 anything except the current locale encoding.
252 479
253 Some applications (such as the formidable mlterm) work around this 480 Some applications (such as the formidable mlterm) work around this
254 by carrying their own replacement functions for character set 481 by carrying their own replacement functions for character set
255 handling with them, and either implementing OS-dependent hacks or 482 handling with them, and either implementing OS-dependent hacks or
256 doing multiple conversions (which is slow and unreliable in case the 483 doing multiple conversions (which is slow and unreliable in case the
257 OS implements encodings slightly different than the terminal 484 OS implements encodings slightly different than the terminal
258 emulator). 485 emulator).
259 486
260 The rxvt-unicode author insists that the right way to fix this is in 487 The rxvt-unicode author insists that the right way to fix this is in
261 the system libraries once and for all, instead of forcing every app 488 the system libraries once and for all, instead of forcing every app
262 to carry complete replacements. 489 to carry complete replacements for them :)
490
491 I use Solaris 9 and it doesn't compile/work/etc.
492 Try the diff in doc/solaris9.patch as a base. It fixes the worst
493 problems with "wcwidth" and a compile problem.
494
495 How can I use rxvt-unicode under cygwin?
496 rxvt-unicode should compile and run out of the box on cygwin, using
497 the X11 libraries that come with cygwin. libW11 emulation is no
498 longer supported (and makes no sense, either, as it only supported a
499 single font). I recommend starting the X-server in "-multiwindow" or
500 "-rootless" mode instead, which will result in similar look&feel as
501 the old libW11 emulation.
502
503 At the time of this writing, cygwin didn't seem to support any
504 multi-byte encodings (you might try "LC_CTYPE=C-UTF-8"), so you are
505 likely limited to 8-bit encodings.
263 506
264 How does rxvt-unicode determine the encoding to use? 507 How does rxvt-unicode determine the encoding to use?
265 Is there an option to switch encodings? 508 Is there an option to switch encodings?
266 Unlike some other terminals, rxvt-unicode has no encoding switch, 509 Unlike some other terminals, rxvt-unicode has no encoding switch,
267 and no specific "utf-8" mode, such as xterm. In fact, it doesn't 510 and no specific "utf-8" mode, such as xterm. In fact, it doesn't
… …
270 513
271 The reasons is that there exists a perfectly fine mechanism for 514 The reasons is that there exists a perfectly fine mechanism for
272 selecting the encoding, doing I/O and (most important) communicating 515 selecting the encoding, doing I/O and (most important) communicating
273 this to all applications so everybody agrees on character properties 516 this to all applications so everybody agrees on character properties
274 such as width and code number. This mechanism is the *locale*. 517 such as width and code number. This mechanism is the *locale*.
518 Applications not using that info will have problems (for example,
519 "xterm" gets the width of characters wrong as it uses it's own,
520 locale-independent table under all locales).
275 521
276 Rxvt-unicode uses the "LC_CTYPE" locale category to select encoding. 522 Rxvt-unicode uses the "LC_CTYPE" locale category to select encoding.
277 All programs doing the same (that is, most) will automatically agree 523 All programs doing the same (that is, most) will automatically agree
278 in the interpretation of characters. 524 in the interpretation of characters.
279 525
… …
287 "language_country.encoding", but other forms (i.e. "de" or "german") 533 "language_country.encoding", but other forms (i.e. "de" or "german")
288 are also common. 534 are also common.
289 535
290 Rxvt-unicode ignores all other locale categories, and except for the 536 Rxvt-unicode ignores all other locale categories, and except for the
291 encoding, ignores country or language-specific settings, i.e. 537 encoding, ignores country or language-specific settings, i.e.
292 "de_DE.UTF-8" and "ja_JP.UTF-8" are the same for rxvt-unicode. 538 "de_DE.UTF-8" and "ja_JP.UTF-8" are the normally same to
539 rxvt-unicode.
293 540
294 If you want to use a specific encoding you have to make sure you 541 If you want to use a specific encoding you have to make sure you
295 start rxvt-unicode with the correct "LC_CTYPE" category. 542 start rxvt-unicode with the correct "LC_CTYPE" category.
296 543
297 Can I switch locales at runtime? 544 Can I switch locales at runtime?
298 Yes, using an escape sequence. Try sth. like this, which sets 545 Yes, using an escape sequence. Try something like this, which sets
299 rxvt-unicode's idea of "LC_CTYPE". 546 rxvt-unicode's idea of "LC_CTYPE".
300 547
301 printf '\e]701;%s\007' ja_JP.SJIS 548 printf '\e]701;%s\007' ja_JP.SJIS
302 549
303 See also the previous question. 550 See also the previous answer.
304 551
305 Sometimes this capability is rather handy when you want to work in 552 Sometimes this capability is rather handy when you want to work in
306 one locale (e.g. "de_DE.UTF-8") but some programs don't support 553 one locale (e.g. "de_DE.UTF-8") but some programs don't support it
307 UTF-8. For example, I use this script to start "xjdic", which first 554 (e.g. UTF-8). For example, I use this script to start "xjdic", which
308 switches to a locale supported by xjdic and back later: 555 first switches to a locale supported by xjdic and back later:
309 556
310 printf '\e]701;%s\007' ja_JP.SJIS 557 printf '\e]701;%s\007' ja_JP.SJIS
311 xjdic -js 558 xjdic -js
312 printf '\e]701;%s\007' de_DE.UTF-8 559 printf '\e]701;%s\007' de_DE.UTF-8
313 560
561 You can also use xterm's "luit" program, which usually works fine,
562 except for some locales where character width differs between
563 program- and rxvt-unicode-locales.
564
314 Can I switch the fonts at runtime? 565 Can I switch the fonts at runtime?
315 Yes, using an escape sequence. Try sth. like this, which has the 566 Yes, using an escape sequence. Try something like this, which has
316 same effect as using the "-fn" switch, and takes effect immediately: 567 the same effect as using the "-fn" switch, and takes effect
568 immediately:
317 569
318 printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic" 570 printf '\e]50;%s\007' "9x15bold,xft:Kochi Gothic"
319 571
320 This is useful if you e.g. work primarily with japanese (and prefer 572 This is useful if you e.g. work primarily with japanese (and prefer
321 a japanese font), but you have to switch to chinese temporarily, 573 a japanese font), but you have to switch to chinese temporarily,
… …
324 You can think of this as a kind of manual ISO-2022 switching. 576 You can think of this as a kind of manual ISO-2022 switching.
325 577
326 Why do italic characters look as if clipped? 578 Why do italic characters look as if clipped?
327 Many fonts have difficulties with italic characters and hinting. For 579 Many fonts have difficulties with italic characters and hinting. For
328 example, the otherwise very nicely hinted font "xft:Bitstream Vera 580 example, the otherwise very nicely hinted font "xft:Bitstream Vera
329 Sans Mono" completely fails in it's italic face. A workaround is to 581 Sans Mono" completely fails in it's italic face. A workaround might
330 enable freetype autohinting, i.e. like this: 582 be to enable freetype autohinting, i.e. like this:
331 583
332 URxvt*italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true 584 URxvt.italicFont: xft:Bitstream Vera Sans Mono:italic:autohint=true
333 URxvt*boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true 585 URxvt.boldItalicFont: xft:Bitstream Vera Sans Mono:bold:italic:autohint=true
334 586
335 My input method wants <some encoding> but I want UTF-8, what can I do? 587 My input method wants <some encoding> but I want UTF-8, what can I do?
336 You can specify separate locales for the input method and the rest 588 You can specify separate locales for the input method and the rest
337 of the terminal, using the resource "imlocale": 589 of the terminal, using the resource "imlocale":
338 590
339 URxvt*imlocale: ja_JP.EUC-JP 591 URxvt.imlocale: ja_JP.EUC-JP
340 592
341 Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and 593 Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and
342 still use your input method. Please note, however, that you will not 594 still use your input method. Please note, however, that you will not
343 be able to input characters outside "EUC-JP" in a normal way then, 595 be able to input characters outside "EUC-JP" in a normal way then,
344 as your input method limits you. 596 as your input method limits you.
345 597
598 Rxvt-unicode crashes when the X Input Method changes or exits.
599 Unfortunately, this is unavoidable, as the XIM protocol is racy by
600 design. Applications can avoid some crashes at the expense of memory
601 leaks, and Input Methods can avoid some crashes by careful ordering
602 at exit time. kinput2 (and derived input methods) generally
603 succeeds, while SCIM (or similar input methods) fails. In the end,
604 however, crashes cannot be completely avoided even if both sides
605 cooperate.
606
607 So the only workaround is not to kill your Input Method Servers.
608
346 Rxvt-unicode uses gobs of memory, how can I reduce that? 609 Rxvt-unicode uses gobs of memory, how can I reduce that?
347 Rxvt-unicode tries to obey the rule of not charging you for sth. you 610 Rxvt-unicode tries to obey the rule of not charging you for
348 don't use. One thing you should try is to configure out all settings 611 something you don't use. One thing you should try is to configure
349 that you don't need, for example, Xft support is a resource hog by 612 out all settings that you don't need, for example, Xft support is a
350 design, when used. Compiling it out ensures that no Xft font will be 613 resource hog by design, when used. Compiling it out ensures that no
351 loaded accidentally when rxvt-unicode tries to find a font for your 614 Xft font will be loaded accidentally when rxvt-unicode tries to find
352 characters. 615 a font for your characters.
353 616
354 Also, many people (me included) like large windows and even larger 617 Also, many people (me included) like large windows and even larger
355 scrollback buffers: Without "--enable-unicode3", rxvt-unicode will 618 scrollback buffers: Without "--enable-unicode3", rxvt-unicode will
356 use 6 bytes per screen cell. For a 160x?? window this amounts to 619 use 6 bytes per screen cell. For a 160x?? window this amounts to
357 almost a kilobyte per line. A scrollback buffer of 10000 lines will 620 almost a kilobyte per line. A scrollback buffer of 10000 lines will
… …
359 it gets worse, as rxvt-unicode then uses 8 bytes per screen cell. 622 it gets worse, as rxvt-unicode then uses 8 bytes per screen cell.
360 623
361 Can I speed up Xft rendering somehow? 624 Can I speed up Xft rendering somehow?
362 Yes, the most obvious way to speed it up is to avoid Xft entirely, 625 Yes, the most obvious way to speed it up is to avoid Xft entirely,
363 as it is simply slow. If you still want Xft fonts you might try to 626 as it is simply slow. If you still want Xft fonts you might try to
364 disable antialiasing (by appending ":antialiasing=false"), which 627 disable antialiasing (by appending ":antialias=false"), which saves
365 saves lots of memory and also speeds up rendering considerably. 628 lots of memory and also speeds up rendering considerably.
366 629
367 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong? 630 Rxvt-unicode doesn't seem to anti-alias its fonts, what is wrong?
368 Rxvt-unicode will use whatever you specify as a font. If it needs to 631 Rxvt-unicode will use whatever you specify as a font. If it needs to
369 fall back to it's default font search list it will prefer X11 core 632 fall back to it's default font search list it will prefer X11 core
370 fonts, because they are small and fast, and then use Xft fonts. It 633 fonts, because they are small and fast, and then use Xft fonts. It
… …
376 Mouse cut/paste suddenly no longer works. 639 Mouse cut/paste suddenly no longer works.
377 Make sure that mouse reporting is actually turned off since killing 640 Make sure that mouse reporting is actually turned off since killing
378 some editors prematurely may leave the mouse in mouse report mode. 641 some editors prematurely may leave the mouse in mouse report mode.
379 I've heard that tcsh may use mouse reporting unless it otherwise 642 I've heard that tcsh may use mouse reporting unless it otherwise
380 specified. A quick check is to see if cut/paste works when the Alt 643 specified. A quick check is to see if cut/paste works when the Alt
381 or Shift keys are depressed. See rxvt(7) 644 or Shift keys are depressed.
382 645
383 What's with this bold/blink stuff? 646 What's with this bold/blink stuff?
384 If no bold colour is set via "colorBD:", bold will invert text using 647 If no bold colour is set via "colorBD:", bold will invert text using
385 the standard foreground colour. 648 the standard foreground colour.
386 649
… …
401 resources (or as long-options). 664 resources (or as long-options).
402 665
403 Here are values that are supposed to resemble a VGA screen, 666 Here are values that are supposed to resemble a VGA screen,
404 including the murky brown that passes for low-intensity yellow: 667 including the murky brown that passes for low-intensity yellow:
405 668
406 URxvt*color0: #000000 669 URxvt.color0: #000000
407 URxvt*color1: #A80000 670 URxvt.color1: #A80000
408 URxvt*color2: #00A800 671 URxvt.color2: #00A800
409 URxvt*color3: #A8A800 672 URxvt.color3: #A8A800
410 URxvt*color4: #0000A8 673 URxvt.color4: #0000A8
411 URxvt*color5: #A800A8 674 URxvt.color5: #A800A8
412 URxvt*color6: #00A8A8 675 URxvt.color6: #00A8A8
413 URxvt*color7: #A8A8A8 676 URxvt.color7: #A8A8A8
414 677
415 URxvt*color8: #000054 678 URxvt.color8: #000054
416 URxvt*color9: #FF0054 679 URxvt.color9: #FF0054
417 URxvt*color10: #00FF54 680 URxvt.color10: #00FF54
418 URxvt*color11: #FFFF54 681 URxvt.color11: #FFFF54
419 URxvt*color12: #0000FF 682 URxvt.color12: #0000FF
420 URxvt*color13: #FF00FF 683 URxvt.color13: #FF00FF
421 URxvt*color14: #00FFFF 684 URxvt.color14: #00FFFF
422 URxvt*color15: #FFFFFF 685 URxvt.color15: #FFFFFF
423 686
424 And here is a more complete set of non-standard colors described as 687 And here is a more complete set of non-standard colors described
425 "pretty girly": 688 (not by me) as "pretty girly".
426 689
427 URxvt.cursorColor: #dc74d1 690 URxvt.cursorColor: #dc74d1
428 URxvt.pointerColor: #dc74d1 691 URxvt.pointerColor: #dc74d1
429 URxvt.background: #0e0e0e 692 URxvt.background: #0e0e0e
430 URxvt.foreground: #4ad5e1 693 URxvt.foreground: #4ad5e1
… …
441 URxvt.color6: #73f7ff 704 URxvt.color6: #73f7ff
442 URxvt.color14: #73f7ff 705 URxvt.color14: #73f7ff
443 URxvt.color7: #e1dddd 706 URxvt.color7: #e1dddd
444 URxvt.color15: #e1dddd 707 URxvt.color15: #e1dddd
445 708
709 How can I start rxvtd in a race-free way?
710 Try "rxvtd -f -o", which tells rxvtd to open the display, create the
711 listening socket and then fork.
712
446 What's with the strange Backspace/Delete key behaviour? 713 What's with the strange Backspace/Delete key behaviour?
447 Assuming that the physical Backspace key corresponds to the 714 Assuming that the physical Backspace key corresponds to the
448 BackSpace keysym (not likely for Linux ... see the following 715 BackSpace keysym (not likely for Linux ... see the following
449 question) there are two standard values that can be used for 716 question) there are two standard values that can be used for
450 Backspace: "^H" and "^?". 717 Backspace: "^H" and "^?".
… …
468 735
469 # use Backspace = ^? 736 # use Backspace = ^?
470 $ stty erase ^? 737 $ stty erase ^?
471 $ rxvt 738 $ rxvt
472 739
473 Toggle with "ESC[36h" / "ESC[36l" as documented in rxvt(7). 740 Toggle with "ESC [ 36 h" / "ESC [ 36 l".
474 741
475 For an existing rxvt-unicode: 742 For an existing rxvt-unicode:
476 743
477 # use Backspace = ^H 744 # use Backspace = ^H
478 $ stty erase ^H 745 $ stty erase ^H
… …
487 value properly reflects that. 754 value properly reflects that.
488 755
489 The Delete key is a another casualty of the ill-defined Backspace 756 The Delete key is a another casualty of the ill-defined Backspace
490 problem. To avoid confusion between the Backspace and Delete keys, 757 problem. To avoid confusion between the Backspace and Delete keys,
491 the Delete key has been assigned an escape sequence to match the 758 the Delete key has been assigned an escape sequence to match the
492 vt100 for Execute (ESC[3~) and is in the supplied termcap/terminfo. 759 vt100 for Execute ("ESC [ 3 ~") and is in the supplied
760 termcap/terminfo.
493 761
494 Some other Backspace problems: 762 Some other Backspace problems:
495 763
496 some editors use termcap/terminfo, some editors (vim I'm told) 764 some editors use termcap/terminfo, some editors (vim I'm told)
497 expect Backspace = ^H, GNU Emacs (and Emacs-like editors) use ^H for 765 expect Backspace = ^H, GNU Emacs (and Emacs-like editors) use ^H for
… …
503 There are some compile-time selections available via configure. 771 There are some compile-time selections available via configure.
504 Unless you have run "configure" with the "--disable-resources" 772 Unless you have run "configure" with the "--disable-resources"
505 option you can use the `keysym' resource to alter the keystrings 773 option you can use the `keysym' resource to alter the keystrings
506 associated with keysyms. 774 associated with keysyms.
507 775
508 Here's an example for a URxvt session started using `rxvt -name 776 Here's an example for a URxvt session started using "rxvt -name
509 URxvt' 777 URxvt"
510 778
511 URxvt.keysym.Home: \e[1~ 779 URxvt.keysym.Home: \033[1~
512 URxvt.keysym.End: \e[4~ 780 URxvt.keysym.End: \033[4~
513 URxvt.keysym.C-apostrophe: \e<C-'> 781 URxvt.keysym.C-apostrophe: \033<C-'>
514 URxvt.keysym.C-slash: \e<C-/> 782 URxvt.keysym.C-slash: \033<C-/>
515 URxvt.keysym.C-semicolon: \e<C-;> 783 URxvt.keysym.C-semicolon: \033<C-;>
516 URxvt.keysym.C-grave: \e<C-`> 784 URxvt.keysym.C-grave: \033<C-`>
517 URxvt.keysym.C-comma: \e<C-,> 785 URxvt.keysym.C-comma: \033<C-,>
518 URxvt.keysym.C-period: \e<C-.> 786 URxvt.keysym.C-period: \033<C-.>
519 URxvt.keysym.C-0x60: \e<C-`> 787 URxvt.keysym.C-0x60: \033<C-`>
520 URxvt.keysym.C-Tab: \e<C-Tab> 788 URxvt.keysym.C-Tab: \033<C-Tab>
521 URxvt.keysym.C-Return: \e<C-Return> 789 URxvt.keysym.C-Return: \033<C-Return>
522 URxvt.keysym.S-Return: \e<S-Return> 790 URxvt.keysym.S-Return: \033<S-Return>
523 URxvt.keysym.S-space: \e<S-Space> 791 URxvt.keysym.S-space: \033<S-Space>
524 URxvt.keysym.M-Up: \e<M-Up> 792 URxvt.keysym.M-Up: \033<M-Up>
525 URxvt.keysym.M-Down: \e<M-Down> 793 URxvt.keysym.M-Down: \033<M-Down>
526 URxvt.keysym.M-Left: \e<M-Left> 794 URxvt.keysym.M-Left: \033<M-Left>
527 URxvt.keysym.M-Right: \e<M-Right> 795 URxvt.keysym.M-Right: \033<M-Right>
528 URxvt.keysym.M-C-0: list \e<M-C- 0123456789 > 796 URxvt.keysym.M-C-0: list \033<M-C- 0123456789 >
529 URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz > 797 URxvt.keysym.M-C-a: list \033<M-C- abcdefghijklmnopqrstuvwxyz >
530 URxvt.keysym.F12: proto:\033]701;zh_CN.GBK\007 798 URxvt.keysym.F12: command:\033]701;zh_CN.GBK\007
531 799
532 See some more examples in the documentation for the keysym resource. 800 See some more examples in the documentation for the keysym resource.
533 801
534 I'm using keyboard model XXX that has extra Prior/Next/Insert keys. How 802 I'm using keyboard model XXX that has extra Prior/Next/Insert keys. How
535 do I make use of them? For example, the Sun Keyboard type 4 has the 803 do I make use of them? For example, the Sun Keyboard type 4 has the
… …
543 811
544 Rather than have rxvt-unicode try to accommodate all the various 812 Rather than have rxvt-unicode try to accommodate all the various
545 possible keyboard mappings, it is better to use `xmodmap' to remap 813 possible keyboard mappings, it is better to use `xmodmap' to remap
546 the keys as required for your particular machine. 814 the keys as required for your particular machine.
547 815
548 How do I distinguish if I'm running rxvt-unicode or a regular xterm? I 816 How do I distinguish wether I'm running rxvt-unicode or a regular xterm?
549 need this to decide about setting colors etc. 817 I need this to decide about setting colors etc.
550 rxvt and rxvt-unicode always export the variable "COLORTERM", so you 818 rxvt and rxvt-unicode always export the variable "COLORTERM", so you
551 can check and see if that is set. Note that several programs, JED, 819 can check and see if that is set. Note that several programs, JED,
552 slrn, Midnight Commander automatically check this variable to decide 820 slrn, Midnight Commander automatically check this variable to decide
553 whether or not to use color. 821 whether or not to use color.
554 822

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