#14733 closed enhancement (fixed)
pretty unicode banner
Reported by: | chapoton | Owned by: | tbd |
---|---|---|---|
Priority: | minor | Milestone: | sage-5.12 |
Component: | user interface | Keywords: | banner, unicode |
Cc: | tmonteil | Merged in: | sage-5.12.beta1 |
Authors: | Frédéric Chapoton | Reviewers: | Volker Braun, William Stein |
Report Upstream: | N/A | Work issues: | |
Branch: | Commit: | ||
Dependencies: | #14559 | Stopgaps: |
Description (last modified by )
Using unicode, one can get the banner to look like that:
┌────────────────────────────────────────────────────────────────────┐ │ Sage Version 5.8, Release Date: 2013-03-15 │ │ Type "notebook()" for the browser-based notebook interface. │ │ Type "help()" for help. │ └────────────────────────────────────────────────────────────────────┘ ┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ ┃ Warning: this is a prerelease version, and it may be unstable. ┃ ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
Apply:
- trac_14733_banner_unicode_color.patch to the Sage library
- trac_14733_version_regexp.patch to the root repository
Attachments (3)
Change History (41)
comment:1 Changed 7 years ago by
- Cc tmonteil added
- Component changed from PLEASE CHANGE to user interface
- Dependencies set to #14559
- Status changed from new to needs_review
Changed 7 years ago by
comment:2 Changed 7 years ago by
comment:3 Changed 7 years ago by
I do not know how to put color, but this is a good idea.
I would put the bold box in red, or the bold box and its content in red.
comment:4 Changed 7 years ago by
here is color version
for the bot:
apply trac_14733_banner_unicode_color.patch
comment:5 Changed 7 years ago by
apply trac_14733_banner_unicode_color.patch
comment:6 Changed 7 years ago by
Is there somebody interested to review this patch ?
apply trac_14733_banner_unicode_color.patch
comment:7 Changed 7 years ago by
Hmmmmmmmmm O_o
I don't know what is happening but applying this patch makes absolutely NO difference to the banner I see when Sage starts O_o
Nathann
comment:8 Changed 7 years ago by
The banner you see on startup is cached output from the sage-sdist script.
comment:9 follow-up: ↓ 35 Changed 7 years ago by
Oh. And how can I test it then ? O_o
Nathann
comment:10 Changed 7 years ago by
I manually updated local/bin/sage-banner
and get the following two doctest errors:
$ sage -t --long devel/sage/sage/tests/cmdline.py # 1 doctest failed Running doctests with ID 2013-07-05-21-44-50-a5339967. Doctesting 1 file. sage -t --long devel/sage/sage/tests/cmdline.py ********************************************************************** File "devel/sage/sage/tests/cmdline.py", line 185, in sage.tests.cmdline.test_executable Failed example: out.find(version()) >= 0 Expected: True Got: False ********************************************************************** 1 item had failures: 1 of 205 in sage.tests.cmdline.test_executable [204 tests, 1 failure, 17.97 s] ---------------------------------------------------------------------- sage -t --long devel/sage/sage/tests/cmdline.py # 1 doctest failed ---------------------------------------------------------------------- Total time for all tests: 18.0 seconds cpu time: 0.2 seconds cumulative wall time: 18.0 seconds $ sage -t --long devel/sage/sage/misc/trace.py # 1 doctest failed Running doctests with ID 2013-07-05-21-45-09-11b2ac64. Doctesting 1 file. sage -t --long devel/sage/sage/misc/trace.py ********************************************************************** File "devel/sage/sage/misc/trace.py", line 61, in sage.misc.trace.trace Failed example: print s.before[s.before.find('-'):] Expected: ---... ipdb> c 2 * 5 Got: -06-21 │ │ Type "notebook()" for the browser-based notebook interface. │ │ Type "help()" for help. │ └────────────────────────────────────────────────────────────────────┘ <CSI-31m>┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ ┃ ┃ ┃ Warning: this is a prerelease version, and it may be unstable. ┃ ┃ ┃ ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛<CSI-0m> trace('print factor(10)'); print 3+97 s<CSI-?1034h> c <CSI-0;34m>sage: <CSI-0m>trace('print factor(10)'); print 3+97 > <string>(1)<module>() ipdb> s --Call-- > /home/vbraun/opt/sage-5.11.beta3/local/lib/python2.7/site-packages/sage/rings/arith.py(2314)factor() 2313 -> 2314 def factor(n, proof=None, int_=False, algorithm='pari', verbose=0, **kwds): 2315 """ ipdb> c 2 * 5 <BLANKLINE> ********************************************************************** 1 item had failures: 1 of 9 in sage.misc.trace.trace [8 tests, 1 failure, 1.28 s] ---------------------------------------------------------------------- sage -t --long devel/sage/sage/misc/trace.py # 1 doctest failed ---------------------------------------------------------------------- Total time for all tests: 1.3 seconds cpu time: 0.0 seconds cumulative wall time: 1.3 seconds
comment:11 Changed 7 years ago by
Also, wouldn't it be better to have no empty lines in the warning box? Having one box with and one box without the blank lines really triggers my OCD ;-)
┏━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┓ ┃ Warning: this is a prerelease version, and it may be unstable. ┃ ┗━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━┛
Changed 7 years ago by
comment:12 Changed 7 years ago by
apply trac_14733_banner_unicode_color.patch
- I have remove the empty lines in the warning part
- I have solved the problem with trace.py
- the problem with cmdline.py is also there without the patch, namely sage -v on a bare 5.11.beta3 does not display anything
comment:13 Changed 7 years ago by
If you look at $SAGE_ROOT/spkg/bin/sage
then you'll see that sage -v
gets the version out of the cached sage-banner
. And the regex doesn't succeed any more in extracting the version information from the new banner. It works fine on a vanilla sage-5.11.beta3 with unmodified sage-banner
.
comment:14 Changed 7 years ago by
ok, you are right. But what to do ? It seems to be sufficient to replace the line 343 in $SAGE_ROOT/spkg/bin/sage by
exec sed -n -e '/Version/s/^[ │]\{1,\}//;/Version/s/[ │]\{1,\}$//p' \
But maybe one has to declare the unicode encoding in the first line of this file too ? I do not know is bash is friendly with unicode.
And I have no idea how to deal with this kind of change, I have only worked with patches so far, never with any spkg.
comment:15 Changed 7 years ago by
No spkg changes required, you just need to write a patch against the $SAGE_ROOT
repository
comment:16 Changed 7 years ago by
ok, so here is a patch, but still I am not sure if bash/sed can handle unicode cleanly.
comment:17 Changed 7 years ago by
Sed just operates on byte strings. I would prefer to make the regex less likely to break by just matching for the part that we want, not the part that we don't want:
sed -n -e 's/.*\(Version.*Date: [0-9-]*\).*/\1/p'
comment:18 Changed 7 years ago by
- Description modified (diff)
ok, I agree that this is better. Here is a modified patch.
apply trac_14733_banner_unicode_color.patch trac_14733_version_regexp.patch
comment:19 Changed 7 years ago by
well, the bot does not seem to understand that one patch is for the SAGE_ROOT directory..
comment:20 Changed 7 years ago by
Yes, thats a limitation of the patchbot
comment:21 Changed 7 years ago by
Sorry, I forgot to start the regex with "Sage Version". The cmdline.py
test still fails because it expects "Sage Version..." instead of "Version..."
Changed 7 years ago by
comment:23 Changed 7 years ago by
- Description modified (diff)
- Reviewers set to Volker Braun
- Status changed from needs_review to positive_review
Looks good to me
comment:24 Changed 7 years ago by
I wonder whether coloured UTF-8 passes easily on most terminal, in particular quite a lot of users use sage through a ssh connection. I didn't test further, but on xvt
(Debian wheezy) i got:
sage: sage.misc.banner.banner() ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â Sage Version 5.10.rc0, Release Date: 2013-05-29 â â Type "notebook()" for the browser-based notebook interface. â â Type "help()" for help. â ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â â â Warning: this is a prerelease version, and it may be unstable. â â â ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ
comment:25 Changed 7 years ago by
- Status changed from positive_review to needs_info
I tried with more terminal emulators (still using Debian wheezy), and
kterm
does not show the boxes (not a serious problem)Eterm
leads to a very bad outputaterm
,mrxvt-mini
andmrxvt
lead to:
$ sage +--------------------------------------------------------------------+ | Sage Version 5.10.rc0, Release Date: 2013-05-29 | | Type "notebook()" for the browser-based notebook interface. | | Type "help()" for help. | +--------------------------------------------------------------------+ ********************************************************************** * * * Warning: this is a prerelease version, and it may be unstable. * * * ********************************************************************** sage: sage.misc.banner.banner() ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â Sage Version 5.10.rc0, Release Date: 2013-05-29 â â Type "notebook()" for the browser-based notebook interface. â â Type "help()" for help. â ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ â â â Warning: this is a prerelease version, and it may be unstable. â â â ââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ sage:
Acces via various ssh connection (especially Putty on windows connecting to various server settings) should be tested as well.
While i find this banner very pretty, i do not have any idea how to fix this encoding issue. Any idea ?
comment:26 Changed 7 years ago by
Given that Sage is gravitating towards UTF-8 encoded source files (and, by extension, docstrings), I would argue that it is a feature that we make it immediately and unambiguously clear to the user that his terminal does not support utf8. There is no API to query the terminal whether it is utf8 capable, you essentially can only check it by displaying some non-ascii characters. Also, even if you don't have a UTF-8 capable terminal you can still use Sage, only the banner looks funky.
In particular, nobody should be using the following any more at this time:
- rxvt (and various older *xvt clones) does not support unicode, it has been forked into rxvt-unicode (a.k.a. urxvt).
- Eterm does not support unicode. Some distros (debian) apply an unofficial patch, but your mileage may vary.
Plain xterm, urxvt, and gnome-terminal work for me.
Ssh will happily pass UTF-8 through, it is the terminal at the other end that needs to be able to display it.
comment:27 Changed 7 years ago by
I've posted a RFC to sage-devel: https://groups.google.com/d/msg/sage-devel/GbaC9yeicAY/GHYcXAoxxP8J
comment:28 Changed 7 years ago by
This is somewhat unrelated comment, but the following may be considered by the patch writer.
The first line "Sage Version 5.8, Release Date: 2013-03-15" may be simplified to
"Sage 5.8, released on 2013-03-15"
I think currently "Version" is unduly prominent and "Date" seems redundant. Too much minimalistic? :-)
comment:29 follow-up: ↓ 31 Changed 7 years ago by
well, there seems to be no much hope to get that patch in sage, so let me keep the patch as it is for the moment.
comment:30 Changed 7 years ago by
- Status changed from needs_info to needs_review
and let me keep this as need review in the present state, just in case somebody is interested
comment:31 in reply to: ↑ 29 Changed 7 years ago by
Replying to chapoton:
well, there seems to be no much hope to get that patch in sage, so let me keep the patch as it is for the moment.
I used the patch, and I think it is beautiful. I completely disagree with the comments such as " I dislike the UTF-8 banner because it looks too nice." and "Keep the banner short and simple ; people don't come to sage to enjoy that sight!" Clean beauty is exactly what people (at least me!) want in software. The banner in Sage right now, which I probably wrote (?), looks frankly ugly and like a hack, compared to the one on this patch.
Also, UTF is clearly the future of strings, having native default support in modern interpreters, editors, etc., and also being critical to supporting users who aren't using English.
This patch is along the same lines as the recent inclusion of a nice color prompt (thanks volker), in that it makes Sage prettier and more pleasant to use.
So my strong vote *for* this ticket. Moreover, I like it so much I'll be henceforth applying it to the standard system-wide version of Sage at https://cloud.sagemath.com, even if it doesn't get into Sage. In particular, I disagree with " If you're doing something that requires nice output you should probably be using a notebook interface anyways" -- since the terminal interface *is* part of the notebook interface now, and it must look nice.
comment:32 Changed 7 years ago by
Thanks William for your strong opinion. I hope that somebody will soon find the time to review this patch.
comment:33 Changed 7 years ago by
- Status changed from needs_review to positive_review
comment:34 Changed 7 years ago by
- Milestone changed from sage-5.11 to sage-5.12
- Reviewers changed from Volker Braun to Volker Braun, William Stein
comment:35 in reply to: ↑ 9 Changed 7 years ago by
Replying to ncohen:
Oh. And how can I test it then ?
O_o
Apply the two patches, start sage and type banner()
at the prompt. Make it the banner by typing sage -c "banner()" > local/bin/sage-banner
.
comment:36 Changed 7 years ago by
Wow. Nice ! :-)
Nathann
comment:37 Changed 7 years ago by
- Merged in set to sage-5.12.beta1
- Resolution set to fixed
- Status changed from positive_review to closed
comment:38 Changed 7 years ago by
This probably causes sage -version
to hang on MacOS X; see #15072.
Since we are already going all-out, how about color instead of a second box for the warning.