Ripgrep – A new command line search tool • Hacker News Board

Re: Ripgrep – A new command line search tool

#31

Post by robinson-wall » Fri, Sep 23, 2016, 4:58 PM UTC

spicyj wrote: post #21

rg is harder to type with one hand because it uses the same finger twice. :)

Off topic, but you've just made me realise I don't always use the same finger when I type the letter R. If I were typing lower case "rg" I use middle finger for r and then index finger for g.

I'm now thinking about it too much to be able to type naturally, but I seem to use middle and index interchangeably for some keys depending on which key was just pressed / is next to be pressed.

... and I just noticed if I sometimes use different fingers from the "wrong" hand to type depending on context too! I've typed the letter Y using right-index, left-index and left-middle and left-index during the course of writing this post. I guess this is what learning to touch type without being actually taught buys you :)

Re: Ripgrep – A new command line search tool

#32

Post by petre » Fri, Sep 23, 2016, 4:58 PM UTC

Does it use PCRE (not the lib, the regex style). If not, ack is just fine. My main concern with grep are Posix regular expressions.

Re: Ripgrep – A new command line search tool

#33

Post by Tim61 » Fri, Sep 23, 2016, 5:00 PM UTC

I love the layout of this article. Especially the pitch and anti-pitch. I wish more more tools/libraries/things would make note of their downsides.

I'm convinced to give it a try.

Re: Ripgrep – A new command line search tool

#34

Post by minimax » Fri, Sep 23, 2016, 5:04 PM UTC

In contrast, GNU grep uses libc’s memchr, which is standard C code with no explicit use of SIMD instructions. However, that C code will be autovectorized to use xmm registers and SIMD instructions, which are half the size of ymm registers.

I don't think this is correct. glibc has architecture specific hand rolled (or unrolled if you will lol) assembly for x64 memchr. See here: https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/x86...

Re: Ripgrep – A new command line search tool

#35

Post by Lio » Fri, Sep 23, 2016, 5:07 PM UTC

spicyj wrote: post #21

rg is harder to type with one hand because it uses the same finger twice. :)

Not if you switch to the Colemak layout

...you can switch your keyboard layout back to qwerty straight after you've typed the rg command. :)

Re: Ripgrep – A new command line search tool

#36

Post by libman » Fri, Sep 23, 2016, 5:15 PM UTC

Tragically the news that LLVM is switching to a non-Copyfree license (see copyfree.org/standard/rejected) has ruined everything... Nothing written in Rust can be called Free Software. :(

Re: Ripgrep – A new command line search tool

#37

Post by unfamiliar » Fri, Sep 23, 2016, 5:15 PM UTC

CJefferson wrote: post #24

ekidd wrote: post #20

Earlier quoted context omitted.

Honestly, for a certain kind of developer—I haven't fingerpointed exactly which kind—writing Rust code is dangerously addictive. There's some combination of aggressive type checking, tooling, and expressiveness that just hits a sweet spot in my brain. Rust fills roughly the same niche in my brain as old-school C++, except it also lets me do some rudimentary functional stuff, there are virtually no footguns, and the C…

Well in the interests of making contraversal statements, that's now two Rust programs I plan on using day-to-day, and zero for Haskell, Scala, and I'm sure a few other languages I'm not remembering.

It will only be a matter of time before someone rewrites xmonad in Rust.

Re: Ripgrep – A new command line search tool

#38

Post by [deleted] » Fri, Sep 23, 2016, 5:16 PM UTC

CJefferson wrote: post #24

ekidd wrote: post #20

Earlier quoted context omitted.

Honestly, for a certain kind of developer—I haven't fingerpointed exactly which kind—writing Rust code is dangerously addictive. There's some combination of aggressive type checking, tooling, and expressiveness that just hits a sweet spot in my brain. Rust fills roughly the same niche in my brain as old-school C++, except it also lets me do some rudimentary functional stuff, there are virtually no footguns, and the C…

Well in the interests of making contraversal statements, that's now two Rust programs I plan on using day-to-day, and zero for Haskell, Scala, and I'm sure a few other languages I'm not remembering.

[deleted]

Re: Ripgrep – A new command line search tool

#39

Post by auganov » Fri, Sep 23, 2016, 5:20 PM UTC

robinson-wall wrote: post #31

spicyj wrote: post #21

rg is harder to type with one hand because it uses the same finger twice. :)

Off topic, but you've just made me realise I don't always use the same finger when I type the letter R. If I were typing lower case "rg" I use middle finger for r and then index finger for g. I'm now thinking about it too much to be able to type naturally, but I seem to use middle and index interchangeably for some keys depending on which key was just pressed / is next to be pressed. ... and I just noticed if I somet…

Was just about to write a similar reply too. I type "rg" the same way. My left hand very often goes for the YHN column, the right hand won't ever touch TGB though. For typing "lol" I'll very often just move my right hand to the right (or sort of angle it) and press the l with the index and the o with the middle finger.

I've been plateaued at a 110wpm avg (121 top speed) @ 10fastfingers for quite a few months now, so perhaps breaking some of these bad habits would help me get to the desired 140.

Re: Ripgrep – A new command line search tool

#40

Post by steveklabnik » Fri, Sep 23, 2016, 5:29 PM UTC

unfamiliar wrote: post #37

CJefferson wrote: post #24

Earlier quoted context omitted.

Well in the interests of making contraversal statements, that's now two Rust programs I plan on using day-to-day, and zero for Haskell, Scala, and I'm sure a few other languages I'm not remembering.

It will only be a matter of time before someone rewrites xmonad in Rust.

Negative time, actually: https://github.com/kintaro/wtftw

(there's an i3 inspired one as well, I forget the link)