diff options
Diffstat (limited to 'framework/Web/Javascripts/clientscripts.php')
| -rw-r--r-- | framework/Web/Javascripts/clientscripts.php | 471 |
1 files changed, 252 insertions, 219 deletions
diff --git a/framework/Web/Javascripts/clientscripts.php b/framework/Web/Javascripts/clientscripts.php index 158b3210..d0bb8af1 100644 --- a/framework/Web/Javascripts/clientscripts.php +++ b/framework/Web/Javascripts/clientscripts.php @@ -46,6 +46,10 @@ * @since 3.1
*/
+//run script for as long as needed
+set_time_limit(0);
+
+//set error_reporting directive
@error_reporting(E_ERROR | E_WARNING | E_PARSE);
function get_client_script_files()
@@ -138,7 +142,7 @@ function combine_javascript($files) */
function minify_javascript($content, $files)
{
- return jsm_minify($content);
+ return JSMin::minify($content);
}
/**
@@ -175,12 +179,12 @@ function save_javascript($content, $filename) */
function get_saved_javascript($filename)
{
- $fn=$filename;
if(supports_gzip_encoding())
- $fn .= '.gz';
- if(!is_file($fn))
- save_javascript(get_javascript_code(true), $filename);
- return file_get_contents($fn);
+ $filename .= '.gz';
+ if(is_file($filename))
+ return file_get_contents($filename);
+ else
+ error_log('Prado client script: no such file '.$filename);
}
/**
@@ -249,17 +253,19 @@ function supports_gzip_encoding() }
/**
- * JSMin: the following jsm_* functions are adapted from JSMin_lib.php
- * written by Douglas Crockford. Below is the original copyright notice:
+ * jsmin.php - PHP implementation of Douglas Crockford's JSMin.
*
- * PHP adaptation of JSMin, published by Douglas Crockford as jsmin.c, also based
- * on its Java translation by John Reilly.
+ * This is pretty much a direct port of jsmin.c to PHP with just a few
+ * PHP-specific performance tweaks. Also, whereas jsmin.c reads from stdin and
+ * outputs to stdout, this library accepts a string as input and returns another
+ * string as output.
*
- * Permission is hereby granted to use the PHP version under the same conditions
- * as jsmin.c, which has the following notice :
+ * PHP 5 or higher is required.
*
- * ----------------------------------------------------------------------------
+ * Permission is hereby granted to use this version of the library under the
+ * same terms as jsmin.c, which has the following license:
*
+ * --
* Copyright (c) 2002 Douglas Crockford (www.crockford.com)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of
@@ -271,252 +277,277 @@ function supports_gzip_encoding() *
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
+ *
+ * The Software shall be used for Good, not Evil.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ * --
+ *
+ * @package JSMin
+ * @author Ryan Grove <ryan@wonko.com>
+ * @copyright 2002 Douglas Crockford <douglas@crockford.com> (jsmin.c)
+ * @copyright 2007 Ryan Grove <ryan@wonko.com> (PHP port)
+ * @license http://opensource.org/licenses/mit-license.php MIT License
+ * @version 1.1.0 (2007-06-01)
+ * @link http://code.google.com/p/jsmin-php/
*/
-$jsm_in='';
-$jsm_out='';
-$jsm_length=0;
-$jsm_pos=0;
-$jsm_c1='';
-$jsm_c2='';
+class JSMin {
+ const ORD_LF = 10;
+ const ORD_SPACE = 32;
-function jsm_minify($jsCode)
-{
- global $jsm_in, $jsm_out, $jsm_length, $jsm_pos, $jsm_c1, $jsm_c2;
+ protected $a = '';
+ protected $b = '';
+ protected $input = '';
+ protected $inputIndex = 0;
+ protected $inputLength = 0;
+ protected $lookAhead = null;
+ protected $output = array();
- $jsm_in=$jsCode;
- $jsm_out='';
- $jsm_length=strlen($jsCode);
- $jsm_pos=0;
+ // -- Public Static Methods --------------------------------------------------
- // Initialize A and run the first (minimal) action
- $jsm_c1="\n";
- jsm_next();
+ public static function minify($js) {
+ $jsmin = new JSMin($js);
+ return $jsmin->min();
+ }
- // Proceed all the way to the end of the input file
- while($jsm_c1!==false)
- {
- if($jsm_c1===' ')
- {
- if(jsm_isAlphaNum($jsm_c2))
- jsm_write($jsm_c1);
- else
- jsm_buffer();
- }
- else if($jsm_c1==="\n")
- {
- if($jsm_c2===' ')
- jsm_next();
- else if(jsm_isAlphaNum($jsm_c2) || $jsm_c2==='{' || $jsm_c2==='[' || $jsm_c2==='(' || $jsm_c2==='+' || $jsm_c2==='-')
- jsm_write($jsm_c1);
- else
- jsm_buffer();
- }
- else
- {
- if($jsm_c2===' ')
- {
- if(jsm_isAlphaNum($jsm_c1))
- jsm_write($jsm_c1);
- else
- jsm_next();
- }
- else if($jsm_c2==="\n")
- {
- if(jsm_isAlphaNum($jsm_c1) || $jsm_c1==='}' || $jsm_c1===']' || $jsm_c1===')' || $jsm_c1==='+' || $jsm_c1==='-' || $jsm_c1==='"' || $jsm_c1==='\'')
- jsm_write($jsm_c1);
- else
- jsm_next();
- }
- else
- jsm_write($jsm_c1);
- }
- }
+ // -- Public Instance Methods ------------------------------------------------
- return $jsm_out;
-}
+ public function __construct($input) {
+ $this->input = str_replace("\r\n", "\n", $input);
+ $this->inputLength = strlen($this->input);
+ }
-function jsm_write()
-{
- global $jsm_c1;
+ // -- Protected Instance Methods ---------------------------------------------
- jsm_put($jsm_c1);
- jsm_buffer();
-}
+ protected function action($d) {
+ switch($d) {
+ case 1:
+ $this->output[] = $this->a;
-function jsm_buffer()
-{
- global $jsm_c1, $jsm_c2;
+ case 2:
+ $this->a = $this->b;
- $tmpA=$jsm_c1=$jsm_c2;
+ if ($this->a === "'" || $this->a === '"') {
+ for (;;) {
+ $this->output[] = $this->a;
+ $this->a = $this->get();
- // Treating a string as a single char : outputting it whole
- // Note that the string-opening char (" or ') is memorized in B
+ if ($this->a === $this->b) {
+ break;
+ }
- if($tmpA==='\'' || $tmpA==='"')
- {
- while (true)
- {
- // Output string contents
- jsm_put($tmpA);
+ if (ord($this->a) <= self::ORD_LF) {
+ throw new JSMinException('Unterminated string literal.');
+ }
- // Get next character, watching out for termination of the current string,
- // new line & co (then the string is not terminated !), or a backslash
- // (upon which the following char is directly output to serve the escape mechanism)
+ if ($this->a === '\\') {
+ $this->output[] = $this->a;
+ $this->a = $this->get();
+ }
+ }
+ }
- $tmpA=$jsm_c1=jsm_get();
+ case 3:
+ $this->b = $this->next();
- if($tmpA===$jsm_c2) // String terminated
- break; // from while(true)
+ if ($this->b === '/' && (
+ $this->a === '(' || $this->a === ',' || $this->a === '=' ||
+ $this->a === ':' || $this->a === '[' || $this->a === '!' ||
+ $this->a === '&' || $this->a === '|' || $this->a === '?')) {
- if(ord($tmpA) <= ord("\n"))
- die('Unterminated string literal');
+ $this->output[] = $this->a;
+ $this->output[] = $this->b;
- if($tmpA==='\\')
- {
- // Escape next char immediately
- jsm_put($tmpA);
- $tmpA=$jsm_c1=jsm_get();
- }
- }
- }
+ for (;;) {
+ $this->a = $this->get();
- jsm_next();
-}
+ if ($this->a === '/') {
+ break;
+ }
+ elseif ($this->a === '\\') {
+ $this->output[] = $this->a;
+ $this->a = $this->get();
+ }
+ elseif (ord($this->a) <= self::ORD_LF) {
+ throw new JSMinException('Unterminated regular expression '.
+ 'literal.');
+ }
-function jsm_next()
-{
- global $jsm_c1, $jsm_c2;
+ $this->output[] = $this->a;
+ }
- // Get the next B
- $jsm_c2=jsm_get2();
+ $this->b = $this->next();
+ }
+ }
+ }
- // Special case of recognising regular expressions (beginning with /) that are
- // preceded by '(', ',' or '='
- $tmpA=$jsm_c1;
+ protected function get() {
+ $c = $this->lookAhead;
+ $this->lookAhead = null;
- if($jsm_c2==='/' && ($tmpA==='(' || $tmpA===',' || $tmpA==='='))
- {
- // Output the two successive chars
- jsm_put($tmpA);
- jsm_put($jsm_c2);
+ if ($c === null) {
+ if ($this->inputIndex < $this->inputLength) {
+ $c = $this->input[$this->inputIndex];
+ $this->inputIndex += 1;
+ }
+ else {
+ $c = null;
+ }
+ }
- // Look for the end of the RE literal, watching out for escaped chars or a control /
- // end of line char (the RE literal then being unterminated !)
- while (true)
- {
- $tmpA=$jsm_c1=jsm_get();
+ if ($c === "\r") {
+ return "\n";
+ }
- if($tmpA==='/')
- break; // from while(true)
+ if ($c === null || $c === "\n" || ord($c) >= self::ORD_SPACE) {
+ return $c;
+ }
- if($tmpA==='\\')
- {
- // Escape next char immediately
- jsm_put($tmpA);
- $tmpA=$jsm_c1=jsm_get();
- }
- else if(ord($tmpA) <= ord("\n"))
- die('Unterminated regexp literal');
+ return ' ';
+ }
- // Output RE characters
- jsm_put($tmpA);
- }
+ protected function isAlphaNum($c) {
+ return ord($c) > 126 || $c === '\\' || preg_match('/^[\w\$]$/', $c) === 1;
+ }
- // Move forward after the RE literal
- $jsm_c2=jsm_get2();
- }
-}
+ protected function min() {
+ $this->a = "\n";
+ $this->action(3);
-function jsm_get()
-{
- global $jsm_pos, $jsm_length, $jsm_in;
+ while ($this->a !== null) {
+ switch ($this->a) {
+ case ' ':
+ if ($this->isAlphaNum($this->b)) {
+ $this->action(1);
+ }
+ else {
+ $this->action(2);
+ }
+ break;
- // Get next input character and advance position in file
- if($jsm_pos < $jsm_length)
- {
- $c=$jsm_in[$jsm_pos++];
- if($c==="\n" || ord($c) >= ord(' '))
- return $c;
- else if($c==="\r")
- return "\n";
- else
- return ' ';
- }
- else
- return false;
+ case "\n":
+ switch ($this->b) {
+ case '{':
+ case '[':
+ case '(':
+ case '+':
+ case '-':
+ $this->action(1);
+ break;
-}
+ case ' ':
+ $this->action(3);
+ break;
-function jsm_peek()
-{
- global $jsm_pos, $jsm_length, $jsm_in;
- if($jsm_pos < $jsm_length)
- return $jsm_in[$jsm_pos];
- else
- return false;
-}
+ default:
+ if ($this->isAlphaNum($this->b)) {
+ $this->action(1);
+ }
+ else {
+ $this->action(2);
+ }
+ }
+ break;
-function jsm_put($c)
-{
- global $jsm_out;
- $jsm_out .= $c;
-}
+ default:
+ switch ($this->b) {
+ case ' ':
+ if ($this->isAlphaNum($this->a)) {
+ $this->action(1);
+ break;
+ }
-/**
- * Get the next character from the input stream, excluding comments.
- */
-function jsm_get2()
-{
- // Get next char from input, translated if necessary
- if(($c=jsm_get())!=='/')
- return $c;
+ $this->action(3);
+ break;
- // Look ahead : a comment is two slashes or slashes followed by asterisk (to be closed)
- if(($c=jsm_peek())==='/')
- {
- // Comment is up to the end of the line
- while (true)
- {
- $c=jsm_get();
- if(ord($c)<=ord("\n"))
- return $c;
- }
- }
- else if($c==='*')
- {
- // Comment is up to comment close.
- // Might not be terminated, if we hit the end of file.
- while(true)
- {
- // N.B. not using switch() because of having to test EOF with ===
- $c=jsm_get();
- if($c==='*')
- {
- // Comment termination if the char ahead is a slash
- if(jsm_peek()==='/')
- {
- // Advance again and make into a single space
- jsm_get();
- return ' ';
+ case "\n":
+ switch ($this->a) {
+ case '}':
+ case ']':
+ case ')':
+ case '+':
+ case '-':
+ case '"':
+ case "'":
+ $this->action(1);
+ break;
+
+ default:
+ if ($this->isAlphaNum($this->a)) {
+ $this->action(1);
+ }
+ else {
+ $this->action(3);
+ }
+ }
+ break;
+
+ default:
+ $this->action(1);
+ break;
+ }
+ }
+ }
+
+ return implode('', $this->output);
+ }
+
+ protected function next() {
+ $c = $this->get();
+
+ if ($c === '/') {
+ switch($this->peek()) {
+ case '/':
+ for (;;) {
+ $c = $this->get();
+
+ if (ord($c) <= self::ORD_LF) {
+ return $c;
+ }
+ }
+
+ case '*':
+ $this->get();
+
+ for (;;) {
+ switch($this->get()) {
+ case '*':
+ if ($this->peek() === '/') {
+ $this->get();
+ return ' ';
}
+ break;
+
+ case null:
+ throw new JSMinException('Unterminated comment.');
}
- else if($c===false)
- die('Unterminated comment');
- }
- }
- else
- return '/';
-}
+ }
-/**
- * Indicates whether a character is alphanumeric or _, $, \ or non-ASCII.
- */
-function jsm_isAlphaNum($c)
-{
- return ctype_alnum($c) || $c==='_' || $c==='$' || $c==='\\' || ord($c)>126;
+ default:
+ return $c;
+ }
+ }
+
+ return $c;
+ }
+
+ protected function peek() {
+ $this->lookAhead = $this->get();
+ return $this->lookAhead;
+ }
}
+// -- Exceptions ---------------------------------------------------------------
+class JSMinException extends Exception {}
+
+
/************** OUTPUT *****************/
if(count(get_script_requests()) > 0)
@@ -533,6 +564,8 @@ if(count(get_script_requests()) > 0) {
if(($filename = compressed_js_filename()) !== null)
{
+ if(!is_file($filename))
+ save_javascript(get_javascript_code(true), $filename);
print_headers();
echo get_saved_javascript($filename);
}
|