Core Function Strpbrk - Revision history

UberFoX at 20:47, 16 September 2015

2015-09-16T20:47:26Z

← Older revision		Revision as of 20:47, 16 September 2015
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	<pre>		<pre>
−	Strpbrk( <haystack>, <needle>, <start> )	+	Strpbrk( <haystack>, <needle>, <start>, <count> )
	</pre>		</pre>

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	Optional; Start position to begin searching the haystack from.		Optional; Start position to begin searching the haystack from.

−	~~Can be~~ negative ~~this~~ will ~~cause it to start~~ from ~~haystack~~ length ~~- abs(start) instead~~.	+	If the start is a negative value the character position will work backwards from the length of the string.

	Default: 0		Default: 0
		+
		+	==== count ====
		+
		+	Optional; The number of characters to search. By default the entire remainder of the string.
		+
		+	If count is given and is negative, then that many characters will be omitted from the end of string (after the start position has been calculated when a start is negative). If start denotes the position of this truncation or beyond, NULL will be returned.

	=== Return Value ===		=== Return Value ===

UberFoX: 1 revision

2015-06-14T12:37:31Z

1 revision

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Revision as of 12:37, 14 June 2015

UberFoX: 1 revision

2014-08-11T21:41:03Z

1 revision

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Revision as of 21:41, 11 August 2014

UberFoX: /* Example */

2013-09-25T09:08:56Z

Example

← Older revision		Revision as of 09:08, 25 September 2013
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	// this echoes "Simple text." because chars are case sensitive		// this echoes "Simple text." because chars are case sensitive
	say substr($text, strpbrk($text, 'S'));		say substr($text, strpbrk($text, 'S'));
−	~~// Prints~~
−	~~// Vowels in 'This is a sample string': i i a a e i~~
	</syntaxhighlight>		</syntaxhighlight>

UberFoX: /* Example */

2013-09-03T20:40:29Z

Example

← Older revision		Revision as of 20:40, 3 September 2013
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	// Prints		// Prints
	// Vowels in 'This is a sample string': i i a a e i		// Vowels in 'This is a sample string': i i a a e i
		+	</syntaxhighlight>
		+
		+	Example of using negative start position
		+
		+	<syntaxhighlight lang="sputnik">
		+	// this echoes ";Cat" since -4 starts from 4 letters from end of the string
		+	$text = "Hello;Cat";
		+	say substr($text, strpbrk($text, ';', -4));
	</syntaxhighlight>		</syntaxhighlight>

	[[Category:Core Function]]		[[Category:Core Function]]

UberFoX: /* start */

2013-09-03T20:38:00Z

start

← Older revision		Revision as of 20:38, 3 September 2013
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	Optional; Start position to begin searching the haystack from.		Optional; Start position to begin searching the haystack from.

−	~~(Cannot~~ be negative)	+	Can be negative this will cause it to start from haystack length - abs(start) instead.

	Default: 0		Default: 0

UberFoX: Created page with "

 Strpbrk( , ,  )

=== Description === Locate a list of possible characters in string and return the position of it. === Parameters === ==..."

2013-09-03T10:32:25Z

Created page with "<pre> Strpbrk( <haystack>, <needle>, <start> ) </pre> === Description === Locate a list of possible characters in string and return the position of it. === Parameters === ==..."

New page

<pre>
Strpbrk( <haystack>, <needle>, <start> )
</pre>

=== Description ===

Locate a list of possible characters in string and return the position of it.

=== Parameters ===

==== haystack ====

The string to search in.

==== needle ====

The string containing the characters to match.

==== start ====

Optional; Start position to begin searching the haystack from.

(Cannot be negative)

Default: 0

=== Return Value ===

Position of the first occurrence in the haystack of any of the characters that are part of needle.

If none of the characters of needle is present in haystack, a null is returned.

=== Remarks ===

None.

=== Example ===

<syntaxhighlight lang="sputnik">
my $str = "This is a sample string";
my $key = "aeiou";
printf ("Vowels in '%s': ",$str);
my $pch = strpbrk ($str, $key);
while ($pch !== NULL)
{
printf ("%c " , $str[$pch]);
$pch = strpbrk( $str, $key, $pch+1 );
}
printf ("\n");
return 0;
// Prints
// Vowels in 'This is a sample string': i i a a e i
</syntaxhighlight>

You may want to return the string after the match

<syntaxhighlight lang="sputnik">
$text = 'This is a Simple text.';

// this echoes "is is a Simple text." because 'i' is matched first
say substr($text, strpbrk($text, 'mi'));

// this echoes "Simple text." because chars are case sensitive
say substr($text, strpbrk($text, 'S'));
// Prints
// Vowels in 'This is a sample string': i i a a e i
</syntaxhighlight>

[[Category:Core Function]]