From d42607998482e36865c1d8a443f92a457f6b2f3b Mon Sep 17 00:00:00 2001
From: Silvio Rhatto <rhatto@riseup.net>
Date: Sat, 15 Mar 2014 15:11:12 -0300
Subject: Squashed 'mod/minify/' content from commit 5949018

git-subtree-dir: mod/minify
git-subtree-split: 594901859d5afc1fa364322428bd7a6d5c6a3f96
---
 vendors/min/lib/Minify/Lines.php | 131 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100644 vendors/min/lib/Minify/Lines.php

(limited to 'vendors/min/lib/Minify/Lines.php')

diff --git a/vendors/min/lib/Minify/Lines.php b/vendors/min/lib/Minify/Lines.php
new file mode 100644
index 000000000..6f94fb63c
--- /dev/null
+++ b/vendors/min/lib/Minify/Lines.php
@@ -0,0 +1,131 @@
+<?php
+/**
+ * Class Minify_Lines  
+ * @package Minify
+ */
+
+/**
+ * Add line numbers in C-style comments for easier debugging of combined content
+ *
+ * @package Minify
+ * @author Stephen Clay <steve@mrclay.org>
+ * @author Adam Pedersen (Issue 55 fix)
+ */
+class Minify_Lines {
+
+    /**
+     * Add line numbers in C-style comments
+     *
+     * This uses a very basic parser easily fooled by comment tokens inside
+     * strings or regexes, but, otherwise, generally clean code will not be 
+     * mangled. URI rewriting can also be performed.
+     *
+     * @param string $content
+     * 
+     * @param array $options available options:
+     * 
+     * 'id': (optional) string to identify file. E.g. file name/path
+     *
+     * 'currentDir': (default null) if given, this is assumed to be the
+     * directory of the current CSS file. Using this, minify will rewrite
+     * all relative URIs in import/url declarations to correctly point to
+     * the desired files, and prepend a comment with debugging information about
+     * this process.
+     * 
+     * @return string 
+     */
+    public static function minify($content, $options = array()) 
+    {
+        $id = (isset($options['id']) && $options['id'])
+            ? $options['id']
+            : '';
+        $content = str_replace("\r\n", "\n", $content);
+        $lines = explode("\n", $content);
+        $numLines = count($lines);
+        // determine left padding
+        $padTo = strlen($numLines);
+        $inComment = false;
+        $i = 0;
+        $newLines = array();
+        while (null !== ($line = array_shift($lines))) {
+            if (('' !== $id) && (0 == $i % 50)) {
+                array_push($newLines, '', "/* {$id} */", '');
+            }
+            ++$i;
+            $newLines[] = self::_addNote($line, $i, $inComment, $padTo);
+            $inComment = self::_eolInComment($line, $inComment);
+        }
+        $content = implode("\n", $newLines) . "\n";
+        
+        // check for desired URI rewriting
+        if (isset($options['currentDir'])) {
+            require_once 'Minify/CSS/UriRewriter.php';
+            Minify_CSS_UriRewriter::$debugText = '';
+            $content = Minify_CSS_UriRewriter::rewrite(
+                 $content
+                ,$options['currentDir']
+                ,isset($options['docRoot']) ? $options['docRoot'] : $_SERVER['DOCUMENT_ROOT']
+                ,isset($options['symlinks']) ? $options['symlinks'] : array()
+            );
+            $content = "/* Minify_CSS_UriRewriter::\$debugText\n\n" 
+                     . Minify_CSS_UriRewriter::$debugText . "*/\n"
+                     . $content;
+        }
+        
+        return $content;
+    }
+    
+    /**
+     * Is the parser within a C-style comment at the end of this line?
+     *
+     * @param string $line current line of code
+     * 
+     * @param bool $inComment was the parser in a comment at the
+     * beginning of the line?
+     * 
+     * @return bool
+     */
+    private static function _eolInComment($line, $inComment)
+    {
+        while (strlen($line)) {
+            $search = $inComment
+                ? '*/'
+                : '/*';
+            $pos = strpos($line, $search);
+            if (false === $pos) {
+                return $inComment;
+            } else {
+                if ($pos == 0
+                    || ($inComment
+                        ? substr($line, $pos, 3)
+                        : substr($line, $pos-1, 3)) != '*/*')
+                {
+                        $inComment = ! $inComment;
+                }
+                $line = substr($line, $pos + 2);
+            }
+        }
+        return $inComment;
+    }
+    
+    /**
+     * Prepend a comment (or note) to the given line
+     *
+     * @param string $line current line of code
+     *
+     * @param string $note content of note/comment
+     * 
+     * @param bool $inComment was the parser in a comment at the
+     * beginning of the line?
+     *
+     * @param int $padTo minimum width of comment
+     * 
+     * @return string
+     */
+    private static function _addNote($line, $note, $inComment, $padTo)
+    {
+        return $inComment
+            ? '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' *| ' . $line
+            : '/* ' . str_pad($note, $padTo, ' ', STR_PAD_RIGHT) . ' */ ' . $line;
+    }
+}
-- 
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