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Current File : /var/www/web032/htdocs/cms/libraries/vendor/leafo/lessphp/lessify.inc.php
<?php
/**
 * lessify
 * Convert a css file into a less file
 * http://leafo.net/lessphp
 * Copyright 2010, leaf corcoran <leafot@gmail.com>
 *
 * WARNING: THIS DOES NOT WORK ANYMORE. NEEDS TO BE UPDATED FOR
 * LATEST VERSION OF LESSPHP.
 *
 */

require "lessc.inc.php";

//
// check if the merge during mixin is overwriting values. should or should it not?
//

//
// 1. split apart class tags
//

class easyparse {
    public $buffer;
    public $count;

    public function __construct($str) {
        $this->count = 0;
        $this->buffer = trim($str);
    }

    public function seek($where = null) {
        if ($where === null) {
            return $this->count;
        }
        $this->count = $where;
        return true;
    }

    public function preg_quote($what) {
        return preg_quote($what, '/');
    }

    public function match($regex, &$out, $eatWhitespace = true) {
        $r = '/'.$regex.($eatWhitespace ? '\s*' : '').'/Ais';
        if (preg_match($r, $this->buffer, $out, null, $this->count)) {
            $this->count += strlen($out[0]);
            return true;
        }
        return false;
    }

    public function literal($what, $eatWhitespace = true) {
        // this is here mainly prevent notice from { } string accessor
        if ($this->count >= strlen($this->buffer)) return false;

        // shortcut on single letter
        if (!$eatWhitespace and strlen($what) === 1) {
            if ($this->buffer{$this->count} == $what) {
                $this->count++;
                return true;
            }
            return false;
        }

        return $this->match($this->preg_quote($what), $m, $eatWhitespace);
    }

}

class tagparse extends easyparse {
    private static $combinators = null;
    private static $match_opts = null;

    public function parse() {
        if (empty(self::$combinators)) {
            self::$combinators = '(' . implode('|', array_map(array($this, 'preg_quote'),
                array('+', '>', '~'))).')';
            self::$match_opts = '(' . implode('|', array_map(array($this, 'preg_quote'),
                array('=', '~=', '|=', '$=', '*='))) . ')';
        }

        // crush whitespace
        $this->buffer = preg_replace('/\s+/', ' ', $this->buffer) . ' ';

        $tags = array();
        while ($this->tag($t)) {
            $tags[] = $t;
        }

        return $tags;
    }

    public static function compileString($string) {
        list(, $delim, $str) = $string;
        $str = str_replace($delim, "\\" . $delim, $str);
        $str = str_replace("\n", "\\\n", $str);
        return $delim . $str . $delim;
    }

    public static function compilePaths($paths) {
        return implode(', ', array_map(array('self', 'compilePath'), $paths));
    }

    // array of tags
    public static function compilePath($path) {
        return implode(' ', array_map(array('self', 'compileTag'), $path));
    }


    public static function compileTag($tag) {
        ob_start();
        if (isset($tag['comb'])) echo $tag['comb'] . " ";
        if (isset($tag['front'])) echo $tag['front'];
        if (isset($tag['attr'])) {
            echo '[' . $tag['attr'];
            if (isset($tag['op'])) {
                echo $tag['op'] . $tag['op_value'];
            }
            echo ']';
        }
        return ob_get_clean();
    }

    public function string(&$out) {
        $s = $this->seek();

        if ($this->literal('"')) {
            $delim = '"';
        } elseif ($this->literal("'")) {
            $delim = "'";
        } else {
            return false;
        }

        while (true) {
            // step through letters looking for either end or escape
            $buff = "";
            $escapeNext = false;
            $finished = false;
            for ($i = $this->count; $i < strlen($this->buffer); $i++) {
                $char = $this->buffer[$i];
                switch ($char) {
                case $delim:
                    if ($escapeNext) {
                        $buff .= $char;
                        $escapeNext = false;
                        break;
                    }
                    $finished = true;
                    break 2;
                case "\\":
                    if ($escapeNext) {
                        $buff .= $char;
                        $escapeNext = false;
                    } else {
                        $escapeNext = true;
                    }
                    break;
                case "\n":
                    if (!$escapeNext) {
                        break 3;
                    }

                    $buff .= $char;
                    $escapeNext = false;
                    break;
                default:
                    if ($escapeNext) {
                        $buff .= "\\";
                        $escapeNext = false;
                    }
                    $buff .= $char;
                }
            }
            if (!$finished) break;
            $out = array('string', $delim, $buff);
            $this->seek($i+1);
            return true;
        }

        $this->seek($s);
        return false;
    }

    public function tag(&$out) {
        $s = $this->seek();
        $tag = array();
        if ($this->combinator($op)) $tag['comb'] = $op;

        if (!$this->match('(.*?)( |$|\[|'.self::$combinators.')', $match)) {
            $this->seek($s);
            return false;
        }

        if (!empty($match[3])) {
            // give back combinator
            $this->count-=strlen($match[3]);
        }

        if (!empty($match[1])) $tag['front'] = $match[1];

        if ($match[2] == '[') {
            if ($this->ident($i)) {
                $tag['attr'] = $i;

                if ($this->match(self::$match_opts, $m) && $this->value($v)) {
                    $tag['op'] = $m[1];
                    $tag['op_value'] = $v;
                }

                if ($this->literal(']')) {
                    $out = $tag;
                    return true;
                }
            }
        } elseif (isset($tag['front'])) {
            $out = $tag;
            return true;
        }

        $this->seek($s);
        return false;
    }

    public function ident(&$out) {
        // [-]?{nmstart}{nmchar}*
        // nmstart: [_a-z]|{nonascii}|{escape}
        // nmchar: [_a-z0-9-]|{nonascii}|{escape}
        if ($this->match('(-?[_a-z][_\w]*)', $m)) {
            $out = $m[1];
            return true;
        }
        return false;
    }

    public function value(&$out) {
        if ($this->string($str)) {
            $out = $this->compileString($str);
            return true;
        } elseif ($this->ident($id)) {
            $out = $id;
            return true;
        }
        return false;
    }


    public function combinator(&$op) {
        if ($this->match(self::$combinators, $m)) {
            $op = $m[1];
            return true;
        }
        return false;
    }
}

class nodecounter {
    public $count = 0;
    public $children = array();

    public $name;
    public $child_blocks;
    public $the_block;

    public function __construct($name) {
        $this->name = $name;
    }

    public function dump($stack = null) {
        if (is_null($stack)) $stack = array();
        $stack[] = $this->getName();
        echo implode(' -> ', $stack) . " ($this->count)\n";
        foreach ($this->children as $child) {
            $child->dump($stack);
        }
    }

    public static function compileProperties($c, $block) {
        foreach ($block as $name => $value) {
            if ($c->isProperty($name, $value)) {
                echo $c->compileProperty($name, $value) . "\n";
            }
        }
    }

    public function compile($c, $path = null) {
        if (is_null($path)) $path = array();
        $path[] = $this->name;

        $isVisible = !is_null($this->the_block) || !is_null($this->child_blocks);

        if ($isVisible) {
            echo $c->indent(implode(' ', $path) . ' {');
            $c->indentLevel++;
            $path = array();

            if ($this->the_block) {
                $this->compileProperties($c, $this->the_block);
            }

            if ($this->child_blocks) {
                foreach ($this->child_blocks as $block) {
                    echo $c->indent(tagparse::compilePaths($block['__tags']).' {');
                    $c->indentLevel++;
                    $this->compileProperties($c, $block);
                    $c->indentLevel--;
                    echo $c->indent('}');
                }
            }
        }

        // compile child nodes
        foreach ($this->children as $node) {
            $node->compile($c, $path);
        }

        if ($isVisible) {
            $c->indentLevel--;
            echo $c->indent('}');
        }

    }

    public function getName() {
        if (is_null($this->name)) return "[root]";
        else return $this->name;
    }

    public function getNode($name) {
        if (!isset($this->children[$name])) {
            $this->children[$name] = new nodecounter($name);
        }

        return $this->children[$name];
    }

    public function findNode($path) {
        $current = $this;
        for ($i = 0; $i < count($path); $i++) {
            $t = tagparse::compileTag($path[$i]);
            $current = $current->getNode($t);
        }

        return $current;
    }

    public function addBlock($path, $block) {
        $node = $this->findNode($path);
        if (!is_null($node->the_block)) throw new exception("can this happen?");

        unset($block['__tags']);
        $node->the_block = $block;
    }

    public function addToNode($path, $block) {
        $node = $this->findNode($path);
        $node->child_blocks[] = $block;
    }
}

/**
 * create a less file from a css file by combining blocks where appropriate
 */
class lessify extends lessc {
    public function dump() {
        print_r($this->env);
    }

    public function parse($str = null) {
        $this->prepareParser($str ? $str : $this->buffer);
        while (false !== $this->parseChunk());

        $root = new nodecounter(null);

        // attempt to preserve some of the block order
        $order = array();

        $visitedTags = array();
        foreach (end($this->env) as $name => $block) {
            if (!$this->isBlock($name, $block)) continue;
            if (isset($visitedTags[$name])) continue;

            foreach ($block['__tags'] as $t) {
                $visitedTags[$t] = true;
            }

            // skip those with more than 1
            if (count($block['__tags']) == 1) {
                $p = new tagparse(end($block['__tags']));
                $path = $p->parse();
                $root->addBlock($path, $block);
                $order[] = array('compressed', $path, $block);
                continue;
            } else {
                $common = null;
                $paths = array();
                foreach ($block['__tags'] as $rawtag) {
                    $p = new tagparse($rawtag);
                    $paths[] = $path = $p->parse();
                    if (is_null($common)) $common = $path;
                    else {
                        $new_common = array();
                        foreach ($path as $tag) {
                            $head = array_shift($common);
                            if ($tag == $head) {
                                $new_common[] = $head;
                            } else break;
                        }
                        $common = $new_common;
                        if (empty($common)) {
                            // nothing in common
                            break;
                        }
                    }
                }

                if (!empty($common)) {
                    $new_paths = array();
                    foreach ($paths as $p) $new_paths[] = array_slice($p, count($common));
                    $block['__tags'] = $new_paths;
                    $root->addToNode($common, $block);
                    $order[] = array('compressed', $common, $block);
                    continue;
                }

            }

            $order[] = array('none', $block['__tags'], $block);
        }


        $compressed = $root->children;
        foreach ($order as $item) {
            list($type, $tags, $block) = $item;
            if ($type == 'compressed') {
                $top = tagparse::compileTag(reset($tags));
                if (isset($compressed[$top])) {
                    $compressed[$top]->compile($this);
                    unset($compressed[$top]);
                }
            } else {
                echo $this->indent(implode(', ', $tags).' {');
                $this->indentLevel++;
                nodecounter::compileProperties($this, $block);
                $this->indentLevel--;
                echo $this->indent('}');
            }
        }
    }
}

Youez - 2016 - github.com/yon3zu
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