Core Function StrSpn - Revision history

UberFoX: /* Example */

2015-09-17T16:29:23Z

Example

← Older revision		Revision as of 16:29, 17 September 2015
Line 77:		Line 77:

	<syntaxhighlight lang="sputnik">		<syntaxhighlight lang="sputnik">
		+	// Make a string
		+	$str = "19421ff49deTesty";
	// Extract numbers		// Extract numbers
	$npos = StrSPN($str, 0..9);		$npos = StrSPN($str, 0..9);
−	if($npos == 0) die("Could not find the numbers");	+	if($npos == 0)
		+	die("Could not find the numbers");
	$Numbers = substr($str, 0, $npos);		$Numbers = substr($str, 0, $npos);
	// Extract hex digits		// Extract hex digits
−	$hpos = StrSPN($str, 0..9 . 'A'..'F' . 'a'..'f', $npos);	+	$hpos = StrSPN($str, (0..9) . ('A'..'F') . ('a'..'f'), $npos);
−	if($hpos == 0) die("Could not find the hex numbers");	+	if($hpos == 0)
		+	die("Could not find the hex numbers");
	$Hex = substr($str, $npos, $hpos);		$Hex = substr($str, $npos, $hpos);
	// Extract what is left		// Extract what is left

UberFoX: 1 revision

2015-06-14T12:37:29Z

1 revision

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Revision as of 12:37, 14 June 2015

UberFoX: 1 revision

2014-08-11T21:41:02Z

1 revision

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Revision as of 21:41, 11 August 2014

UberFoX: /* Example */

2013-09-01T18:36:28Z

Example

← Older revision		Revision as of 18:36, 1 September 2013
Line 72:		Line 72:
	else		else
	echo "Good characters\n";		echo "Good characters\n";
		+	</syntaxhighlight>
		+
		+	Using StrSpn to extract specific text from a string
		+
		+	<syntaxhighlight lang="sputnik">
		+	// Extract numbers
		+	$npos = StrSPN($str, 0..9);
		+	if($npos == 0) die("Could not find the numbers");
		+	$Numbers = substr($str, 0, $npos);
		+	// Extract hex digits
		+	$hpos = StrSPN($str, 0..9 . 'A'..'F' . 'a'..'f', $npos);
		+	if($hpos == 0) die("Could not find the hex numbers");
		+	$Hex = substr($str, $npos, $hpos);
		+	// Extract what is left
		+	$Rest = substr($str, $npos + $hpos);
		+	// Print the result
		+	say "The numbers are '$Numbers'";
		+	say "The hex is '$Hex'";
		+	say "The rest is '$Rest'";
		+	// The numbers are '19421'
		+	// The hex is 'ff49de'
		+	// The rest is 'Testy'
	</syntaxhighlight>		</syntaxhighlight>

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

UberFoX: Created page with "

 StrSpn( , , ,  )

=== Description === Finds the length of the initial segment of a string consisting entirely of characters contained ..."

2013-09-01T18:24:30Z

Created page with "<pre> StrSpn( <subject>, <mask>, <start>, <length> ) </pre> === Description === Finds the length of the initial segment of a string consisting entirely of characters contained ..."

New page

<pre>
StrSpn( <subject>, <mask>, <start>, <length> )
</pre>

=== Description ===

Finds the length of the initial segment of a string consisting entirely of characters contained within a given mask.

=== Parameters ===

==== subject ====

The string to examine.

==== mask ====

The list of allowable characters (as a string).

==== start ====

The position in subject to start searching.

If start is given and is non-negative, then strspn() will begin examining subject at the start'th position.

For instance, in the string 'abcdef', the character at position 0 is 'a', the character at position 2 is 'c', and so forth.

If start is given and is negative, then strspn() will begin examining subject at the start'th position from the end of subject.

==== length ====

The length of the segment from subject to examine.

If length is given and is non-negative, then subject will be examined for length characters after the starting position.

If lengthis given and is negative, then subject will be examined from the starting position up to length characters from the end of subject.

=== Return Value ===

Returns the length of the initial segment of subject which consists entirely of characters in mask.

=== Remarks ===

None.

=== Example ===

<syntaxhighlight lang="sputnik">
// subject does not start with any characters from mask
say(strspn("foo", "o")); // 0

// examine two characters from subject starting at offset 1
say(strspn("foo", "o", 1, 2)); // 2

// examine one character from subject starting at offset 1
say(strspn("foo", "o", 1, 1)); // 1
</syntaxhighlight>

Check if a phone number is valid

<syntaxhighlight lang="sputnik">
$digits='0123456789';

$phone = "Cat";
if (strlen($phone) != strspn($phone,$digits))
echo "Illegal characters\n";
else
echo "Good characters\n";

$phone = "777";
if (strlen($phone) != strspn($phone,$digits))
echo "Illegal characters\n";
else
echo "Good characters\n";
</syntaxhighlight>

[[Category:Core Function]]