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Revision 1.26 by root, Thu Jan 12 23:11:23 2006 UTC vs.
Revision 1.31 by root, Tue Jan 17 16:22:41 2006 UTC

1FREQUENTLY ASKED QUESTIONS 1FREQUENTLY ASKED QUESTIONS
2 The new selection selects pieces that are too big/too small, can I 2 The new selection selects pieces that are too big, how can I select
3 change this? 3 single words?
4 Yes. For example, if you want to select smaller pieces ("words") you 4 Yes. For example, if you want to select alphanumeric words, you can
5 can use the following resource: 5 use the following resource:
6 6
7 URxvt.selection.pattern-0: ([[:word:]]+) 7 URxvt.selection.pattern-0: ([[:word:]]+)
8 8
9 If you click more than twice, the selection will be extended more 9 If you click more than twice, the selection will be extended more
10 and more. 10 and more.
11 11
12 To get a selection that is very similar to the old code, try this 12 To get a selection that is very similar to the old code, try this
13 pattern: 13 pattern:
14 14
15 URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+) 15 URxvt.selection.pattern-0: ([^"&'()*,;<=>?@[\\\\]^`{|})]+)
16
17 Please also note that the *LeftClick Shift-LeftClik* combination
18 also selects words like the old code.
16 19
17 I don't like the new selection/popups/hotkeys/perl, how do I 20 I don't like the new selection/popups/hotkeys/perl, how do I
18 change/disable it? 21 change/disable it?
19 You can disable the perl extension completely by setting the 22 You can disable the perl extension completely by setting the
20 perl-ext-common resource to the empty string, which also keeps 23 perl-ext-common resource to the empty string, which also keeps
162 of encodings built-in that increase download times and are rarely 165 of encodings built-in that increase download times and are rarely
163 used). 166 used).
164 167
165 I need to make it setuid/setgid to support utmp/ptys on my OS, is this 168 I need to make it setuid/setgid to support utmp/ptys on my OS, is this
166 safe? 169 safe?
167 Likely not. While I honestly try to make it secure, and am probably 170 It should be, starting with release 7.1. You are encouraged to
168 not bad at it, I think it is simply unreasonable to expect all of 171 properly install urxvt with privileges necessary for your OS now.
169 freetype + fontconfig + xft + xlib + perl + ... + rxvt-unicode 172
170 itself to all be secure. Also, rxvt-unicode disables some options
171 when it detects that it runs setuid or setgid, which is not nice. 173 When rxvt-unicode detects that it runs setuid or setgid, it will
172 Besides, with the embedded perl interpreter the possibility for 174 fork into a helper process for privileged operations (pty handling
173 security problems easily multiplies. 175 on some systems, utmp/wtmp/lastlog handling on others) and drop
176 privileges immediately. This is much safer than most other terminals
177 that keep privileges while running (but is more relevant to urxvt,
178 as it contains things as perl interpreters, which might be "helpful"
179 to attackers).
174 180
175 Elevated privileges are only required for utmp and pty operations on 181 This forking is done as the very first within main(), which is very
176 some systems (for example, GNU/Linux doesn't need any extra 182 early and reduces possible bugs to initialisation code run before
177 privileges for ptys, but some need it for utmp support). It is 183 main(), or things like the dynamic loader of your system, which
178 planned to mvoe this into a forked handler process, but this is not 184 should result in very little risk.
179 yet done.
180
181 So, while setuid/setgid operation is supported and not a problem on
182 your typical single-user-no-other-logins unix desktop, always
183 remember that its an awful lot of code, most of which isn't checked
184 for security issues regularly.
185 185
186 When I log-in to another system it tells me about missing terminfo data? 186 When I log-in to another system it tells me about missing terminfo data?
187 The terminal description used by rxvt-unicode is not as widely 187 The terminal description used by rxvt-unicode is not as widely
188 available as that for xterm, or even rxvt (for which the same 188 available as that for xterm, or even rxvt (for which the same
189 problem often arises). 189 problem often arises).
577 577
578 My input method wants <some encoding> but I want UTF-8, what can I do? 578 My input method wants <some encoding> but I want UTF-8, what can I do?
579 You can specify separate locales for the input method and the rest 579 You can specify separate locales for the input method and the rest
580 of the terminal, using the resource "imlocale": 580 of the terminal, using the resource "imlocale":
581 581
582 URxvt*imlocale: ja_JP.EUC-JP 582 URxvt.imlocale: ja_JP.EUC-JP
583 583
584 Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and 584 Now you can start your terminal with "LC_CTYPE=ja_JP.UTF-8" and
585 still use your input method. Please note, however, that you will not 585 still use your input method. Please note, however, that you will not
586 be able to input characters outside "EUC-JP" in a normal way then, 586 be able to input characters outside "EUC-JP" in a normal way then,
587 as your input method limits you. 587 as your input method limits you.
630 Mouse cut/paste suddenly no longer works. 630 Mouse cut/paste suddenly no longer works.
631 Make sure that mouse reporting is actually turned off since killing 631 Make sure that mouse reporting is actually turned off since killing
632 some editors prematurely may leave the mouse in mouse report mode. 632 some editors prematurely may leave the mouse in mouse report mode.
633 I've heard that tcsh may use mouse reporting unless it otherwise 633 I've heard that tcsh may use mouse reporting unless it otherwise
634 specified. A quick check is to see if cut/paste works when the Alt 634 specified. A quick check is to see if cut/paste works when the Alt
635 or Shift keys are depressed. See rxvt(7) 635 or Shift keys are depressed.
636 636
637 What's with this bold/blink stuff? 637 What's with this bold/blink stuff?
638 If no bold colour is set via "colorBD:", bold will invert text using 638 If no bold colour is set via "colorBD:", bold will invert text using
639 the standard foreground colour. 639 the standard foreground colour.
640 640
726 726
727 # use Backspace = ^? 727 # use Backspace = ^?
728 $ stty erase ^? 728 $ stty erase ^?
729 $ rxvt 729 $ rxvt
730 730
731 Toggle with "ESC [ 36 h" / "ESC [ 36 l" as documented in rxvt(7). 731 Toggle with "ESC [ 36 h" / "ESC [ 36 l".
732 732
733 For an existing rxvt-unicode: 733 For an existing rxvt-unicode:
734 734
735 # use Backspace = ^H 735 # use Backspace = ^H
736 $ stty erase ^H 736 $ stty erase ^H

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