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Re: query: how many use PHP for linux scripts [message #185958 is a reply to message #185954]

Thu, 15 May 2014 15:26

Ben Bacarisse
Messages: 82
Registered: November 2013

Karma:

Member

Jasen Betts <jasen(at)xnet(dot)co(dot)nz> writes:

> On 2014-05-14, Ben Bacarisse <ben(dot)usenet(at)bsb(dot)me(dot)uk> wrote:
>> The Natural Philosopher <tnp(at)invalid(dot)invalid> writes:
>>
>>> On 13/05/14 21:35, Tim Streater wrote:
>> <snip>
>>>> I can't be arsed to fiddle around with C these days. Too much faffing
>>>> around with declarations - and no string handling to speak of either.
>>>>
>>>> Non-issues in PHP.
>>>>
>>> string handling is the chief reason I prefer C..
>>
>> That seems odd since PHP has almost every single low-level C string
>> function available to it. You can strspn and strncmp to your heart's
>> content in PHP. Pretty much the only ones missing are strcat and strcpy
>> but, surely, they can't be why you prefer C.
>>
>> A PHP translation of C string handling would inevitably be simpler since
>> there would be no need manage the storage. That's the biggest advantage
>> in my opinion, even if never used any of PHP's more complex string
>> manipulation.
>
> white program the reads a text file and swaps every pair of lines and writes
> a new file.

I'd go:

function write_line($fin, $fout)
{
while (($c = fgetc($fin)) !== false && fputs($fout, $c) && $c != "\n");
return $c !== false;
}

function skip_line($fin, $fout)
{
while (($c = fgetc($fin)) !== false && $c != "\n");
return $c !== false;
}

function write_swapped_pair($fin, $fout)
{
$here = ftell($fin);
skip_line($fin, $fout);
if (write_line($fin, $fout))
return fseek($fin, $here) == 0 &&
write_line($fin, $fout) &&
skip_line($fin, $fout);
else return false;
}

function write_swapped_lines($fin, $fout)
{
while (write_swapped_pair($fin, $fout));
}

the behaviour with an odd number of lines, and when then last line is
not properly terminated, was not given so I took the easiest option!

This is not much more than a translation of what I'd do in C, which in a
way was my point.

The main difference is exchanging the test for EOF to false which takes
a little care (!== rather than !=), but then testing for EOF in C takes
case (you must use the right type variable). I don't think this is a
counter-example, but it's possible I missed the point your were making.

--
Ben.

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[Message index]

		query: how many use PHP for linux scripts By: crankypuss on Tue, 13 May 2014 08:17
		Re: query: how many use PHP for linux scripts By: Arno Welzel on Tue, 13 May 2014 08:37
		Re: query: how many use PHP for linux scripts By: Tim Streater on Tue, 13 May 2014 10:52
		Re: query: how many use PHP for linux scripts By: Auric__ on Tue, 13 May 2014 13:28
		Re: query: how many use PHP for linux scripts By: Jonathan N. Little on Tue, 13 May 2014 14:29
		Re: query: how many use PHP for linux scripts By: Collin Pruitt on Tue, 13 May 2014 15:00
		Re: query: how many use PHP for linux scripts By: crankypuss on Tue, 13 May 2014 16:05
		Re: query: how many use PHP for linux scripts By: Johnny on Tue, 13 May 2014 16:32
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Tue, 13 May 2014 18:09
		Re: query: how many use PHP for linux scripts By: Tim Streater on Tue, 13 May 2014 20:35
		Re: query: how many use PHP for linux scripts By: JEDIDIAH on Tue, 13 May 2014 21:10
		Re: query: how many use PHP for linux scripts By: Tim Streater on Tue, 13 May 2014 22:03
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Tue, 13 May 2014 23:55
		Re: query: how many use PHP for linux scripts By: Chris Ahlstrom on Wed, 14 May 2014 00:26
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Wed, 14 May 2014 00:37
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:18
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Wed, 14 May 2014 12:20
		PHP Gui Toolkits (was: query: how many use PHP for linux scripts) By: Christoph Michael Bec on Wed, 14 May 2014 12:58
		Re: PHP Gui Toolkits By: crankypuss on Thu, 15 May 2014 08:04
		Re: PHP Gui Toolkits By: Christoph Michael Bec on Thu, 15 May 2014 12:38
		Re: PHP Gui Toolkits By: The Natural Philosoph on Thu, 15 May 2014 12:59
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 08:01
		Re: query: how many use PHP for linux scripts By: Chris Ahlstrom on Wed, 14 May 2014 10:40
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Wed, 14 May 2014 12:23
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:00
		Re: query: how many use PHP for linux scripts By: JEDIDIAH on Wed, 14 May 2014 19:49
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 08:44
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 09:17
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:39
		Re: query: how many use PHP for linux scripts By: Tim Streater on Wed, 14 May 2014 11:29
		Re: query: how many use PHP for linux scripts By: JEDIDIAH on Wed, 14 May 2014 19:54
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 20:50
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Thu, 15 May 2014 02:49
		Re: query: how many use PHP for linux scripts By: JEDIDIAH on Thu, 15 May 2014 14:45
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Thu, 15 May 2014 16:35
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 08:07
		Re: query: how many use PHP for linux scripts By: Jonathan N. Little on Thu, 15 May 2014 11:58
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 15:55
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Thu, 15 May 2014 12:08
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 16:04
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 03:42
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:21
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 11:32
		Re: query: how many use PHP for linux scripts By: Ben Bacarisse on Wed, 14 May 2014 12:39
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 14:23
		Re: query: how many use PHP for linux scripts By: Christoph Michael Bec on Wed, 14 May 2014 18:00
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 20:48
		Re: query: how many use PHP for linux scripts By: Ben Bacarisse on Wed, 14 May 2014 21:18
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 22:10
		Re: query: how many use PHP for linux scripts By: Ben Bacarisse on Wed, 14 May 2014 21:05
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 22:07
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Thu, 15 May 2014 02:51
		Re: query: how many use PHP for linux scripts By: Jasen Betts on Thu, 15 May 2014 12:34
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Thu, 15 May 2014 13:52
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 16:13
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Thu, 15 May 2014 16:48
		Re: query: how many use PHP for linux scripts By: crankypuss on Fri, 16 May 2014 07:12
		Re: query: how many use PHP for linux scripts By: Jasen Betts on Fri, 16 May 2014 11:29
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Fri, 16 May 2014 12:03
		PHP integers (was: query: how many use PHP for linux scripts) By: Christoph Michael Bec on Fri, 16 May 2014 12:16
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Thu, 15 May 2014 14:03
		Re: query: how many use PHP for linux scripts By: Ben Bacarisse on Thu, 15 May 2014 15:26
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 16:07
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Thu, 15 May 2014 16:37
		Re: query: how many use PHP for linux scripts By: Christoph Michael Bec on Thu, 15 May 2014 17:14
		Re: query: how many use PHP for linux scripts By: Ben Bacarisse on Fri, 16 May 2014 01:45
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Fri, 16 May 2014 08:25
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Fri, 16 May 2014 13:14
		Re: query: how many use PHP for linux scripts By: crankypuss on Fri, 16 May 2014 07:17
		Re: query: how many use PHP for linux scripts By: Thomas 'PointedEars' on Thu, 15 May 2014 17:33
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 08:36
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Wed, 14 May 2014 09:09
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:58
		Re: query: how many use PHP for linux scripts By: Allodoxaphobia on Tue, 13 May 2014 21:23
		Re: query: how many use PHP for linux scripts By: Mike Yetto on Tue, 13 May 2014 23:02
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:24
		Re: query: how many use PHP for linux scripts By: Mike Yetto on Wed, 14 May 2014 21:23
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Thu, 15 May 2014 02:53
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 08:13
		Re: query: how many use PHP for linux scripts By: Chris Ahlstrom on Thu, 15 May 2014 10:09
		Re: query: how many use PHP for linux scripts By: crankypuss on Thu, 15 May 2014 16:16
		Re: query: how many use PHP for linux scripts By: Thomas 'PointedEars' on Thu, 15 May 2014 16:49
		Re: query: how many use PHP for linux scripts By: Jasen Betts on Fri, 16 May 2014 12:02
		Re: query: how many use PHP for linux scripts By: crankypuss on Fri, 16 May 2014 14:17
		init-system, bash, etc. (was: query: how many use PHP for linux scripts) By: Christoph Michael Bec on Fri, 16 May 2014 16:48
		Re: query: how many use PHP for linux scripts By: Mike Yetto on Thu, 15 May 2014 12:02
		Re: query: how many use PHP for linux scripts By: Aragorn on Thu, 15 May 2014 01:16
		Re: query: how many use PHP for linux scripts By: crankypuss on Tue, 13 May 2014 18:20
		Re: query: how many use PHP for linux scripts By: Johnny on Tue, 13 May 2014 18:35
		Re: query: how many use PHP for linux scripts By: Mike Yetto on Tue, 13 May 2014 23:04
		Re: query: how many use PHP for linux scripts By: crankypuss on Wed, 14 May 2014 09:26
		Re: query: how many use PHP for linux scripts By: Jerry Stuckle on Wed, 14 May 2014 12:28
		Re: query: how many use PHP for linux scripts By: The Natural Philosoph on Tue, 13 May 2014 16:26

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