mirror/minify
1
0
Fork 0
mirror of https://github.com/mrclay/minify.git synced 2025-08-07 22:56:33 +02:00
Code Issues Releases Wiki Activity

move cc-checking to constructor

Browse Source
This commit is contained in:
Steve Clay
2011-01-09 23:19:13 +00:00
parent 8adf606cc6
commit 1fed7e4ab8
1 changed files with 23 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

50
min/lib/JSMin.php
View File

@@ -10,7 +10,7 @@
* modifications to preserve some comments (see below). Also, rather than using
* stdin/stdout, JSMin::minify() accepts a string as input and returns another
* string as output.
*
*
* Comments containing IE conditional compilation are preserved, as are multi-line
* comments that begin with "/*!" (for documentation purposes). In the latter case
* newlines are inserted around the comment to enhance readability.
@@ -60,7 +60,7 @@ class JSMin {
const ACTION_KEEP_A = 1;
const ACTION_DELETE_A = 2;
const ACTION_DELETE_A_B = 3;
protected $a = "\n";
protected $b = '';
protected $input = '';
@@ -70,36 +70,32 @@ class JSMin {
protected $output = '';
/**
* Minify Javascript
* Minify Javascript.
*
* @param string $js Javascript to be minified
* @return string
*/
public static function minify($js)
{
// look out for syntax like "++ +" and "- ++"
$p = '\\+';
$m = '\\-';
if (preg_match("/([$p$m])(?:\\1 [$p$m]| (?:$p$p|$m$m))/", $js)) {
// likely pre-minified and would be broken by JSMin
return $js;
}
$jsmin = new JSMin($js);
return $jsmin->min();
}
/*
* Don't create a JSMin instance, instead use the static function minify,
* which checks for mb_string function overloading and avoids errors
* trying to re-minify the output of Closure Compiler
*
* @private
/**
* @param string $input
*/
public function __construct($input)
{
$this->input = $input;
// look out for syntax like "++ +" and "- ++"
$p = '\\+';
$m = '\\-';
if (preg_match("/([$p$m])(?:\\1 [$p$m]| (?:$p$p|$m$m))/", $input)) {
// likely pre-minified and would be broken by JSMin
$this->output = $input;
}
}
/**
* Perform minification, return result
*/
@@ -118,7 +114,7 @@ class JSMin {
$this->inputLength = strlen($this->input);
$this->action(self::ACTION_DELETE_A_B);
while ($this->a !== null) {
// determine next command
$command = self::ACTION_KEEP_A; // default
@@ -138,7 +134,7 @@ class JSMin {
}
} elseif (! $this->isAlphaNum($this->a)) {
if ($this->b === ' '
|| ($this->b === "\n"
|| ($this->b === "\n"
&& (false === strpos('}])+-"\'', $this->a)))) {
$command = self::ACTION_DELETE_A_B;
}
@@ -152,7 +148,7 @@ class JSMin {
}
return $this->output;
}
/**
* ACTION_KEEP_A = Output A. Copy B to A. Get the next B.
* ACTION_DELETE_A = Copy B to A. Get the next B.
@@ -214,7 +210,7 @@ class JSMin {
// end case ACTION_DELETE_A_B
}
}
protected function isRegexpLiteral()
{
if (false !== strpos("\n{;(,=:[!&|?", $this->a)) { // we aren't dividing
@@ -239,7 +235,7 @@ class JSMin {
}
return false;
}
/**
* Get next char. Convert ctrl char to space.
*/
@@ -263,7 +259,7 @@ class JSMin {
}
return $c;
}
/**
* Get next char. If is ctrl character, translate to a space or newline.
*/
@@ -272,7 +268,7 @@ class JSMin {
$this->lookAhead = $this->get();
return $this->lookAhead;
}
/**
* Is $c a letter, digit, underscore, dollar sign, escape, or non-ASCII?
*/
@@ -280,7 +276,7 @@ class JSMin {
{
return (preg_match('/^[0-9a-zA-Z_\\$\\\\]$/', $c) || ord($c) > 126);
}
protected function singleLineComment()
{
$comment = '';
@@ -296,7 +292,7 @@ class JSMin {
}
}
}
protected function multipleLineComment()
{
$this->get();
@@ -324,7 +320,7 @@ class JSMin {
$comment .= $get;
}
}
/**
* Get the next character, skipping over comments.
* Some comments may be preserved.