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Re: fmt2.myr: Landed new string formatting code.


Ah, I see what you mean; I don't feel strongly about it -- if you want to
submit a patch to change it, then it shouldn't be hard.

On Sun, 07 Jun 2015 16:13:51 -0500
Ryan Gonzalez <rymg19@xxxxxxxxx> wrote:

> Yeah, I just found it odd. In Python, the braces are the placeholder *and* the options list.
> 
> 
> On June 7, 2015 3:30:46 PM CDT, Ori Bernstein <ori@xxxxxxxxxxxxxx> wrote:
> >Braces are only for specifying options. % is the placeholder.
> >
> >
> >    std.fmt("% % %", 1, 2, 255) => "1, 2, 255"
> >    std.fmt("% % %{x}", 1, 2, 255) => "1, 2, ff"
> >
> >On Sun, 07 Jun 2015 12:56:35 -0500
> >Ryan Gonzalez <rymg19@xxxxxxxxx> wrote:
> >
> >> Looks neat! One thing: it seems weird to specify a percent *and* the
> >braces. Python uses no percent with the .format function; it's just the
> >braces.
> >> 
> >> I can test it on Plan 9 once I can figure out how to "git pull" with
> >an rc script I found...
> >> 
> >> Curiosity: how to you commit changes to the repo from Plan 9?
> >> 
> >> 
> >> On June 7, 2015 11:57:10 AM CDT, Ori Bernstein <ori@xxxxxxxxxxxxxx>
> >wrote:
> >> >I've got a new version of std.fmt() which uses the generated type
> >info
> >> >to know the types of its arguments, and which can support custom
> >format
> >> >functions.
> >> >
> >> >Format strings are now very different. '%' is the value placeholder.
> >> >There are no other specifiers. Formatting options are passed via the
> >> >'{opts}' after the placeholder. '%%' escapes the '%', so that a
> >single
> >> >'%' is printed. {} is the empty parameter list, and needs to be
> >passed
> >> >if you are printing a { immediately after a placeholder. Examples:
> >> >
> >> >    std.f2put("x=%\n", 123)
> >> >        prints "x=123"
> >> >
> >> >    std.f2put("x=%{x}\n", 255)
> >> >        prints "x=ff"
> >> >
> >> >    std.f2put("x=%{}{asdf}\n", 123)
> >> >        prints "x=123{asdf}"
> >> >
> >> >    std.f2put("x=%, %\n", 255)
> >> >        Kills your program because your arg list doesn't match the
> >> >        format string (there are too few args)
> >> >
> >> >    std.f2put("x=%\n", 123, 456)
> >> >        Kills your program because your arg list doesn't match the
> >> >        format string (there are too many args)
> >> >
> >> >
> >> >It hasn't replaced std.fmt() yet, and is accessible via the f2fmt()
> >> >functions, but I intend to kill off the current std.fmt as soon as
> >> >I verify that this is working well on plan9.
> >> >
> >> >Code is here:
> >> >    http://git.eigenstate.org/ori/mc.git/tree/libstd/fmt2.myr
> >> >
> >> >It depends on the new type introspection api:
> >> >    http://git.eigenstate.org/ori/mc.git/tree/libstd/introspect.myr
> >> >
> >> >API design reviews would be welcome. I'm not sure how happy I am
> >> >with the introspection API, although I do like that it lets me
> >> >look at stuff without descending into it, and without needing any
> >> >heap allocations.
> >> >
> >> >-- 
> >> >Ori Bernstein <ori@xxxxxxxxxxxxxx>
> >> 
> >> -- 
> >> Sent from my Android device with K-9 Mail. Please excuse my brevity.
> >
> >
> >-- 
> >Ori Bernstein <ori@xxxxxxxxxxxxxx>
> 
> -- 
> Sent from my Android device with K-9 Mail. Please excuse my brevity.


-- 
Ori Bernstein <ori@xxxxxxxxxxxxxx>

Follow-Ups:
Re: fmt2.myr: Landed new string formatting code.Ori Bernstein <ori@xxxxxxxxxxxxxx>
References:
fmt2.myr: Landed new string formatting code.Ori Bernstein <ori@xxxxxxxxxxxxxx>
Re: fmt2.myr: Landed new string formatting code.Ryan Gonzalez <rymg19@xxxxxxxxx>
Re: fmt2.myr: Landed new string formatting code.Ori Bernstein <ori@xxxxxxxxxxxxxx>
Re: fmt2.myr: Landed new string formatting code.Ryan Gonzalez <rymg19@xxxxxxxxx>