MatthiasMullie\Minify\Minify Class Reference

Abstract minifier class. More...

Public Member Functions
	__construct ()
	Init the minify class - optionally, code may be passed along already.
	add ($data)
	Add a file or straight-up code to be minified.
	addFile ($data)
	Add a file to be minified.
	cache (CacheItemInterface $item)
	Minify the data & write it to a CacheItemInterface object.
	execute ($path=null)
	Minify the data.
	gzip ($path=null, $level=9)
	Minify & gzip the data & (optionally) saves it to a file.
	minify ($path=null)
	Minify the data & (optionally) saves it to a file.

Public Attributes
string[]	$extracted = array()
	This array will hold content of strings and regular expressions that have been extracted from the JS source code, so we can reliably match "code", without having to worry about potential "code-like" characters inside.

Protected Member Functions
	canImportFile ($path)
	Check if the path is a regular file and can be read.
	executeReplacement ($replacement, $match)
	If $replacement is a callback, execute it, passing in the match data.
	extractStrings ($chars='\'"', $placeholderPrefix = '')
	Strings are a pattern we need to match, in order to ignore potential code-like content inside them, but we just want all of the string content to remain untouched.
	load ($data)
	Load data.
	openFileForWriting ($path)
	Attempts to open file specified by $path for writing.
	registerPattern ($pattern, $replacement='')
	Register a pattern to execute against the source content.
	replace ($content)
	We can't "just" run some regular expressions against JavaScript: it's a complex language.
	restoreExtractedData ($content)
	This method will restore all extracted data (strings, regexes) that were replaced with placeholder text in extract*().
	save ($content, $path)
	Save to file.
	stripMultilineComments ()
	Both JS and CSS use the same form of multi-line comment, so putting the common code here.
	writeToFile ($handler, $content, $path='')
	Attempts to write $content to the file specified by $handler.

Static Protected Member Functions
static	str_replace_first ($search, $replace, $subject)

Protected Attributes
string[]	$data = array()
	The data to be minified.
string[]	$patterns = array()
	Array of patterns to match.

Detailed Description

Abstract minifier class.

Please report bugs on https://github.com/matthiasmullie/minify/issues

Author

Matthias Mullie minif.nosp@m.y@mu.nosp@m.llie..nosp@m.eu

Copyright

Copyright (c) 2012, Matthias Mullie. All rights reserved

License

MIT License

Member Function Documentation

add()

MatthiasMullie\Minify\Minify::add

(

$data

)

Add a file or straight-up code to be minified.

Parameters

string | string[]

$data

Return values

static

addFile()

MatthiasMullie\Minify\Minify::addFile

(

$data

)

Add a file to be minified.

Parameters

string | string[]

$data

Return values

static

Exceptions

IOException

cache()

MatthiasMullie\Minify\Minify::cache

(

CacheItemInterface

$item

)

Minify the data & write it to a CacheItemInterface object.

Parameters

CacheItemInterface

$item

Cache item to write the data to

Return values

CacheItemInterface

Cache item with the minifier data

canImportFile()

MatthiasMullie\Minify\Minify::canImportFile ( $path )

protected

Check if the path is a regular file and can be read.

Parameters

string

$path

Return values

bool

execute()

MatthiasMullie\Minify\Minify::execute ( $path = null )

abstract

Minify the data.

Parameters

string[optional]

$path Path to write the data to

Return values

string

The minified data

executeReplacement()

MatthiasMullie\Minify\Minify::executeReplacement ( $replacement, $match )

protected

If $replacement is a callback, execute it, passing in the match data.

If it's a string, just pass it through.

Parameters

string | callable	$replacement	Replacement value
array	$match	Match data, in PREG_OFFSET_CAPTURE form

Return values

string

extractStrings()

MatthiasMullie\Minify\Minify::extractStrings ( )

protected

Strings are a pattern we need to match, in order to ignore potential code-like content inside them, but we just want all of the string content to remain untouched.

This method will replace all string content with simple STRING# placeholder text, so we've rid all strings from characters that may be misinterpreted. Original string content will be saved in $this->extracted and after doing all other minifying, we can restore the original content via restoreStrings().

Parameters

string[optional]	$chars
string[optional]	$placeholderPrefix

gzip()

MatthiasMullie\Minify\Minify::gzip	(		$path = null,
			$level = 9 )

Minify & gzip the data & (optionally) saves it to a file.

Parameters

string[optional]	$path Path to write the data to
int[optional]	$level Compression level, from 0 to 9

Return values

string

The minified & gzipped data

load()

MatthiasMullie\Minify\Minify::load ( $data )

protected

Load data.

Parameters

string

$data

Either a path to a file or the content itself

Return values

string

minify()

MatthiasMullie\Minify\Minify::minify

(

$path = null

)

Minify the data & (optionally) saves it to a file.

Parameters

string[optional]

$path Path to write the data to

Return values

string

The minified data

openFileForWriting()

MatthiasMullie\Minify\Minify::openFileForWriting ( $path )

protected

Attempts to open file specified by $path for writing.

Parameters

string

$path

The path to the file

Return values

resource

Specifier for the target file

Exceptions

IOException

registerPattern()

MatthiasMullie\Minify\Minify::registerPattern ( $pattern, $replacement = '' )

protected

Register a pattern to execute against the source content.

If $replacement is a string, it must be plain text. Placeholders like $1 or 2 don't work. If you need that functionality, use a callback instead.

Parameters

string	$pattern	PCRE pattern
string | callable	$replacement	Replacement value for matched pattern

replace()

MatthiasMullie\Minify\Minify::replace ( $content )

protected

We can't "just" run some regular expressions against JavaScript: it's a complex language.

E.g. having an occurrence of // xyz would be a comment, unless it's used within a string. Of you could have something that looks like a 'string', but inside a comment. The only way to accurately replace these pieces is to traverse the JS one character at a time and try to find whatever starts first.

Parameters

string

$content

The content to replace patterns in

Return values

string

The (manipulated) content

restoreExtractedData()

MatthiasMullie\Minify\Minify::restoreExtractedData ( $content )

protected

This method will restore all extracted data (strings, regexes) that were replaced with placeholder text in extract*().

The original content was saved in $this->extracted.

Parameters

string

$content

Return values

string

save()

MatthiasMullie\Minify\Minify::save ( $content, $path )

protected

Save to file.

Parameters

string	$content	The minified data
string	$path	The path to save the minified data to

Exceptions

IOException

writeToFile()

MatthiasMullie\Minify\Minify::writeToFile ( $handler, $content, $path = '' )

protected

Attempts to write $content to the file specified by $handler.

$path is used for printing exceptions.

Parameters

resource	$handler	The resource to write to
string	$content	The content to write
string	$path	The path to the file (for exception printing only)

Exceptions

IOException

---

The documentation for this class was generated from the following file:

• lib/minify/matthiasmullie-minify/src/Minify.php