[HN Gopher] Rich Tables in the Terminal
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Rich Tables in the Terminal
Author : willm
Score : 211 points
Date : 2020-07-05 12:07 UTC (10 hours ago)
(HTM) web link (github.com)
(TXT) w3m dump (github.com)
| miguelmota wrote:
| This is sweet. Is there an equivalent of this library for Go?
| Particularly with scrolling support
| omani wrote:
| Im using https://github.com/olekukonko/tablewriter in Go.
| zemnmez wrote:
| this is awesome! Terminal programs are so satisfying, but at the
| same time it always feels like they miss so many primitives that
| I take for granted for content display
| willm wrote:
| That was my main motivation in working in Rich. Whenever I move
| from the frontend to the backend, I miss what the browser can
| do so effortlessly.
| 2ion wrote:
| kitty terminal has built-in extensions to xterm terminal protocol
| extensions to make this kind of thing much easier, toda. Hacking
| the terminal is nice but another way is moving forward in
| developing it.
| Anthony-G wrote:
| This looks really impressive: elegant and beautiful with an easy-
| to-use API. I don't know if submission titles can be edited 9
| hours after posting but this would be an excellent addition to
| _Show HN_ and might get more attention as such.
|
| https://news.ycombinator.com/showhn.html
| xixixao wrote:
| This makes me think how close this is to HTML output + DOM
| rendering, and what would be the proc and cons of each, how could
| you get max pros of the CLI approach into the HTML approach.
| willm wrote:
| My goal was to bring some of the capabilities of HTML to the
| console. The browser is always going to win in terms of
| capabilities.
| a_t48 wrote:
| That traceback handler is awesome. I wonder if there's a way to
| hook all my python programs to use it.
| chameleon_world wrote:
| You can, the instructions are here:
| https://rich.readthedocs.io/en/latest/traceback.html
|
| But it is noticeably slower than the default python handler
| a_t48 wrote:
| Slower in what way? Just on crash? I don't mind that. But I
| meant for programs I _don't_ typically write source for - if
| Python has a way to run code before every program start up it
| would do what I want.
| willm wrote:
| Its slower when it renders the traceback, all that reading
| of source and syntax highlighting takes second or two.
| There is a way of importing something automatically, see
| the sites module docs.
| mattatkeyboard wrote:
| Naff tables (along with poor graphs) was one of my key
| motivations to create WV Linweise, which spawns a tiny web
| renderer to make displays nicer... Love the terminal, but some
| things it is just not great at...
|
| This mini example app renders CSV data from STDIN into a HTML
| tables - https://github.com/forbesmyester/wv-
| linewise/tree/master/exa...
| easterncalculus wrote:
| Rich is great. Have been using it for a couple of projects and
| the support is great, even on terminals with less color support.
| willm wrote:
| I'm glad you find it useful!
| kureikain wrote:
| Can It detect non terminal output and render normal ascii such as
| when pipe/redirect stdout/stderror to a file? or pipe to seed and
| avoid messing up with color code.
|
| I recently release a tool with a nice table but many hate the
| format, the color and it even make `grep` impossible because
| color code make grep match every line :-(
| willm wrote:
| Yes, Rich will remove escape sequences when not writing to a
| terminal.
| the8472 wrote:
| This may be heresey, but does it support mouse interaction, e.g.
| sorting by clicking on the column header like midnight commander
| does?
| willm wrote:
| No, the animation was for demo purposes. It's not normally
| dynamic.
| gonewb wrote:
| Is this using ncurses?
| sxp wrote:
| https://github.com/willmcgugan/rich/blob/master/rich/console...
| shows that's it's directly using escape codes: http://ascii-
| table.com/ansi-escape-sequences-vt-100.php
| eepp wrote:
| looks like it hardcodes escape sequences with no regard to
| the current terminal.
| JdeBP wrote:
| It's not using ncurses nor terminfo, but it's very misleading
| to point to a list of VT100 escape sequences when it most
| definitely is not doing things the VT100 way _either_.
|
| In contrast to the monochrome VT100 this is using colour
| quite significantly, albeit not supporting the recent
| corrections of a widespread mistake; and it even seems to
| support the rare framed and encircled attributes of later
| ECMA-48. Also in contrast to the VT100 it nowhere seems to
| deal in double-height or double-width, nor is it using
| ECMA-35 character set switching.
| detaro wrote:
| doesnt seem so
| dang wrote:
| Related from a few months ago:
| https://news.ycombinator.com/item?id=23070821
| enricozb wrote:
| Those progress bars look delicious
| reaperducer wrote:
| I agree.
|
| Also: My kingdom for rsync with progress bars.
| oblio wrote:
| He he! Souped up IBM PC box drawing characters, circa 1981:
| https://en.m.wikipedia.org/wiki/Box-drawing_character
| ishcheklein wrote:
| This looks awesome! Gonna try to use it for DVC where we need to
| show tables of experiments, metrics, etc.
| teddyh wrote:
| This seems to only support rendering. If you also want
| interactive use, another library which does things like this is
| Urwid:
|
| http://urwid.org/examples/
| cosmotic wrote:
| This seems to be begging the question: At what point does one
| move to a GUI? GUIs are well suited for these tasks.
| makecheck wrote:
| Terminal features work better across all platforms than most
| GUIs. They are more likely to have efficient keyboard commands
| for everything. And if (say) you wanted to Copy arbitrary text
| from anywhere in the terminal, you can (a GUI would have to
| explicitly support Copy for the things it presents).
|
| Clearly GUIs have a place but terminal UIs are really powerful.
| bluedays wrote:
| I started using this in a project of mine a few days ago and I
| highly recommend this library. It is super intuitive and easy.
| yjftsjthsd-h wrote:
| So, it _is_ cool; let me say that much before I criticize. That
| said: live resizing a table is a bit of a pain if you 're trying
| to select something (to copy or to highlight it to show someone
| else). It's like a webpage that moves a link just as you click.
| Is there any way to fix the width and append only to the end?
| (Just optionally; I understand why it resizes dynamically by
| default)
| dredmorbius wrote:
| Best suggestion I've seen is for the interface to respond to
| what was at the point of interaction ~300ms _before_ the click
| or touch action.
| willm wrote:
| The animation is purely for demonstration purposes. Generally
| you would use this to render a formatted table as the result of
| a CLI.
| 1996 wrote:
| IF you want to add other things to the CLI, like graphics or
| unicode, check this library:
|
| https://gitlab.com/klamonte/jexer
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