Make Pre-defined Functions Bold

The Little Guy · April 7, 2008

I would like to replace any function that is found in a string with a bold bold version word. I have an array with all the functions, so how can I do this? I do know I have to convert all the words to an array, then check if the word is in the array or not, after that, I need to bold any words that are functions... How can I do this?

Example:

random(100) -> random(100)

abs(9.5) -> abs(9.5)

obsidian · April 7, 2008

You don't need regexp at all for that. If you have all the functions in an array, just set up a matching replacement array like this and run str_replace on the whole string:

<?php
$functions = array('abs', 'random');
$replace = array();
foreach ($functions as $f)
{
  $replace[] = '<b>' . $f . '</b>';
}

$new_string = str_replace($functions, $replace, $old_string);
echo $new_string;
?>

The Little Guy · April 7, 2008

but then that replaces words like abs3 which is a variable. I don't want that.

effigy · April 7, 2008

You don't need regexp at all for that.

A regexp may be preferred depending on the context; for example, if there's a function called random_number, you're going to get random_number. To get around this, you would use word boundaries: preg_replace('/\b(' . preg_quote($word) . ')\b/i', '$1', $string);.

The Little Guy · April 7, 2008

like this?

<?php
function formatCode($string){
	$find = array(
		"~\/\/(.*)\n~"
	);
	$replace = array(
		'<span style="color:darkorange">//$1</span>',
	);
	$format = preg_replace($find,$replace,$string);
	//$foundFunctions = preg_match('~\s+(.*)\(~',$string,$matches);
	//print_r($matches);		
	$filename = "../functions list.txt";
	$handle = fopen($filename, "r");
	$contents = fread($handle, filesize($filename));
	fclose($handle);
	$knowArr = explode("\n",$contents);

	$words = explode(" ",$string);
	$replace = array();
	foreach($words as $word){
		//$replace[] = '<strong>' . $word . '</strong>';
		$format = preg_replace('~\b(' . preg_quote($word) . ')\b~i','<strong>$1</strong>', $string);
	}
	//$format = str_replace($words, $replace, $format);
	return $format;
}
?>

if so... Its not working

View: http://gmm.phpsnips.com/functions.php?function=abs Under Examples

any better suggestions?

effigy · April 7, 2008

You're making the replace on $string every time, and not the updated $format.

Are there any \r's in the word file? Do $string and $word contain what you expect? Also, you need to tell preg_quote which delimiter you're using if it's not the default /.

The Little Guy · April 7, 2008

I don't know, I can not figure out how to do this.

All that happens is it prints out the wrong stuff:

[<strong>strongstrong>>strong>strong>strongstrong>>strong>exstrong><strong>strongstrong>>strong>strong>strongstrong>>=<strong>strongstrong>>strong>strong>strongstrong>>strong>1strong><strong>strongstrong>>strong>strong>strongstrong>>]<strong>strongstrong>>strong>strong>strongstrong>>strong>randomstrong><strong>strongstrong>>strong>strong>strongstrong>>(<strong>strongstrong>>strong>strong>strongstrong>>strong>10strong><strong>strongstrong>>strong>strong>strongstrong>>) <<strong>strongstrong>>strong>strong>strongstrong>>strong>spanstrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>stylestrong><strong>strongstrong>>strong>strong>strongstrong>>="<strong>strongstrong>>strong>strong>strongstrong>>strong>colorstrong><strong>strongstrong>>strong>strong>strongstrong>>:<strong>strongstrong>>strong>strong>strongstrong>>strong>darkorangestrong><strong>strongstrong>>strong>strong>strongstrong>>">// <strong>strongstrong>>strong>strong>strongstrong>>strong>Returnsstrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>7strong><strong>strongstrong>>strong>strong>strongstrong>>
strong>strong>strongstrong>>strong>strong>strongstrong>>strong>spanstrong><strong>strongstrong>>strong>strong>strongstrong>>><strong>strongstrong>>strong>strong>strongstrong>>strong>randomstrong><strong>strongstrong>>strong>strong>strongstrong>>(<strong>strongstrong>>strong>strong>strongstrong>>strong>10strong><strong>strongstrong>>strong>strong>strongstrong>>) <<strong>strongstrong>>strong>strong>strongstrong>>strong>spanstrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>stylestrong><strong>strongstrong>>strong>strong>strongstrong>>="<strong>strongstrong>>strong>strong>strongstrong>>strong>colorstrong><strong>strongstrong>>strong>strong>strongstrong>>:<strong>strongstrong>>strong>strong>strongstrong>>strong>darkorangestrong><strong>strongstrong>>strong>strong>strongstrong>>">// <strong>strongstrong>>strong>strong>strongstrong>>strong>Returnsstrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>9strong><strong>strongstrong>>strong>strong>strongstrong>>, <strong>strongstrong>>strong>strong>strongstrong>>strong>higheststrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>valuestrong><strong>strongstrong>>strong>strong>strongstrong>>

strong>strong>strongstrong>>strong>strong>strongstrong>>strong>spanstrong><strong>strongstrong>>strong>strong>strongstrong>>><strong>strongstrong>>strong>strong>strongstrong>>strong>randomstrong><strong>strongstrong>>strong>strong>strongstrong>>(<strong>strongstrong>>strong>strong>strongstrong>>strong>55strong><strong>strongstrong>>strong>strong>strongstrong>>) // <strong>strongstrong>>strong>strong>strongstrong>>strong>Returnsstrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>0strong><strong>strongstrong>>strong>strong>strongstrong>>, <strong>strongstrong>>strong>strong>strongstrong>>strong>minimumstrong><strong>strongstrong>>strong>strong>strongstrong>> <strong>strongstrong>>strong>strong>strongstrong>>strong>valuestrong><strong>strongstrong>>strong>strong>strongstrong>>[/<strong>strongstrong>>strong>strong>strongstrong>>strong>exstrong><strong>strongstrong>>strong>strong>strongstrong>>]

When I use this:

<?php
function formatCode($string){
	$find = array(
		"~\/\/(.*)\n~"
	);
	$replace = array(
		'<span style="color:darkorange">//$1</span>',
	);
	$format = preg_replace($find,$replace,$string);
	//$foundFunctions = preg_match('~\s+(.*)\(~',$string,$matches);
	//print_r($matches);

	$filename = "../functions list.txt";
	$handle = fopen($filename, "r");
	$contents = fread($handle, filesize($filename));
	fclose($handle);
	$knowArr = explode("\n",$contents);

	//$words = explode(" ",$string);
	$words = preg_split("~(\s|\(|\])~",$string);
	//print_r($words);
	$replace = array();
	$find = array();
	foreach($words as $word){
		if(in_array($word,$knowArr)){
			$find[] = '~\b' . $word . '\b~';
			$replace[] = '<strong>$1</strong>';
		}
	}
	echo '<br><br>';
	//if(in_array($word,$knowArr)){
		//$format = preg_replace('~\b(' . preg_quote($word) . ')\b~','<strong>$1</strong>', $format);
		$format = preg_replace($find,$replace, $format);
	//}
	//$format = str_replace($words, $replace, $format);
	return $format;
}
?>

The ideal final result should would look great if it looked like this:

random(10) // Returns 7

random(10) // Returns 9, highest value

random(55) // Returns 0, minimum value

The Little Guy · April 7, 2008

I would actually like to make the function a link instead of bold, can that be done? (I know it can but I don't know how)

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