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From: "'William Lupton' via pandoc-discuss" <pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
To: pandoc-discuss-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org
Subject: Re: Examples for some pandoc.List methods
Date: Thu, 20 Oct 2022 18:10:04 +0100	[thread overview]
Message-ID: <CAEe_xxgZQvkNRsOD5JTTumPgWFKQPJNfitDAGM-mPLGVg6FSUg@mail.gmail.com> (raw)
In-Reply-To: <878rlao2x9.fsf-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>

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Also, 'needle' presumably refers to finding a needle in a haystack (
https://dictionary.cambridge.org/dictionary/english/needle-in-a-haystack),
where the list is the haystack!

The use of this term is probably paying homage to the C run-time
library's strstr() function (and friends):

STRSTR(3)                                            Library Functions
Manual                                           STRSTR(3)

NAME
     strstr, strcasestr, strnstr – locate a substring in a string

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>
     char *strstr(const char *haystack, const char *needle);
...

DESCRIPTION
     The strstr() function locates the first occurrence of the
null-terminated string needle in the null-terminated string
     haystack.

On Thu, 20 Oct 2022 at 17:50, Albert Krewinkel <albert+pandoc-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>
wrote:

>
> perro tuerto <nika.zhenya-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:
>
> > Hi, I am trying to understand how to implement pandoc.List:find,
> > pandoc.List:find_if, pandoc.List:filter and pandoc.List:includes but
> > I don't understand what does “needle“ or “pred” mean. Can I see some
> > examples of how to use these methods? Thanks
>
> You are right, some examples would help to improve the docs.
>
> The test suite for lists contains some code that might help here:
> https://github.com/hslua/hslua/blob/main/hslua-list/test/test-list.lua
> E.g., for `find` see lines 79 ff.
>
> --
> Albert Krewinkel
> GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124
>
> --
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>

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  parent reply	other threads:[~2022-10-20 17:10 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-10-20 16:24 perro tuerto
     [not found] ` <fac523bd-59fb-434a-9064-5e5535822c33n-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org>
2022-10-20 16:45   ` Albert Krewinkel
     [not found]     ` <878rlao2x9.fsf-9EawChwDxG8hFhg+JK9F0w@public.gmane.org>
2022-10-20 17:10       ` 'William Lupton' via pandoc-discuss [this message]
2022-10-20 17:16       ` perro tuerto

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